X-Git-Url: http://nitlanguage.org

diff --git a/c_src/opts.sep.1.c b/c_src/opts.sep.1.c
index 3904ab7..ff06e30 100644
--- a/c_src/opts.sep.1.c
+++ b/c_src/opts.sep.1.c
@@ -1,72 +1,58 @@
 #include "opts.sep.0.h"
 /* method opts#Option#names for (self: Option): Array[String] */
-val* opts__Option__names(val* self) {
+val* opts___opts__Option___names(val* self) {
 val* var /* : Array[String] */;
 val* var1 /* : Array[String] */;
 var1 = self->attrs[COLOR_opts__Option___names].val; /* _names on <self:Option> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _names", "lib/opts.nit", 19);
-exit(1);
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#Option#names for (self: Object): Array[String] */
-val* VIRTUAL_opts__Option__names(val* self) {
-val* var /* : Array[String] */;
-val* var1 /* : Array[String] */;
-var1 = opts__Option__names(self);
-var = var1;
+/* method opts#Option#names= for (self: Option, Array[String]) */
+void opts___opts__Option___names_61d(val* self, val* p0) {
+self->attrs[COLOR_opts__Option___names].val = p0; /* _names on <self:Option> */
 RET_LABEL:;
-return var;
 }
 /* method opts#Option#helptext for (self: Option): String */
-val* opts__Option__helptext(val* self) {
+val* opts___opts__Option___helptext(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
 var1 = self->attrs[COLOR_opts__Option___helptext].val; /* _helptext on <self:Option> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _helptext", "lib/opts.nit", 25);
-exit(1);
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _helptext");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 25);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#Option#helptext for (self: Object): String */
-val* VIRTUAL_opts__Option__helptext(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__Option__helptext(self);
-var = var1;
+/* method opts#Option#helptext= for (self: Option, String) */
+void opts___opts__Option___helptext_61d(val* self, val* p0) {
+self->attrs[COLOR_opts__Option___helptext].val = p0; /* _helptext on <self:Option> */
 RET_LABEL:;
-return var;
 }
 /* method opts#Option#errors for (self: Option): Array[String] */
-val* opts__Option__errors(val* self) {
+val* opts___opts__Option___errors(val* self) {
 val* var /* : Array[String] */;
 val* var1 /* : Array[String] */;
 var1 = self->attrs[COLOR_opts__Option___errors].val; /* _errors on <self:Option> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _errors", "lib/opts.nit", 28);
-exit(1);
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _errors");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 28);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#Option#errors for (self: Object): Array[String] */
-val* VIRTUAL_opts__Option__errors(val* self) {
-val* var /* : Array[String] */;
-val* var1 /* : Array[String] */;
-var1 = opts__Option__errors(self);
-var = var1;
-RET_LABEL:;
-return var;
-}
 /* method opts#Option#mandatory for (self: Option): Bool */
-short int opts__Option__mandatory(val* self) {
+short int opts___opts__Option___mandatory(val* self) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
 var1 = self->attrs[COLOR_opts__Option___mandatory].s; /* _mandatory on <self:Option> */
@@ -74,27 +60,22 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#Option#mandatory for (self: Object): Bool */
-short int VIRTUAL_opts__Option__mandatory(val* self) {
+/* method opts#Option#hidden for (self: Option): Bool */
+short int opts___opts__Option___hidden(val* self) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
-var1 = opts__Option__mandatory(self);
+var1 = self->attrs[COLOR_opts__Option___hidden].s; /* _hidden on <self:Option> */
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#Option#mandatory= for (self: Option, Bool) */
-void opts__Option__mandatory_61d(val* self, short int p0) {
-self->attrs[COLOR_opts__Option___mandatory].s = p0; /* _mandatory on <self:Option> */
-RET_LABEL:;
-}
-/* method opts#Option#mandatory= for (self: Object, Bool) */
-void VIRTUAL_opts__Option__mandatory_61d(val* self, short int p0) {
-opts__Option__mandatory_61d(self, p0);
+/* method opts#Option#hidden= for (self: Option, Bool) */
+void opts___opts__Option___hidden_61d(val* self, short int p0) {
+self->attrs[COLOR_opts__Option___hidden].s = p0; /* _hidden on <self:Option> */
 RET_LABEL:;
 }
 /* method opts#Option#read for (self: Option): Bool */
-short int opts__Option__read(val* self) {
+short int opts___opts__Option___read(val* self) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
 var1 = self->attrs[COLOR_opts__Option___read].s; /* _read on <self:Option> */
@@ -102,644 +83,620 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#Option#read for (self: Object): Bool */
-short int VIRTUAL_opts__Option__read(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = opts__Option__read(self);
+/* method opts#Option#read= for (self: Option, Bool) */
+void opts___opts__Option___read_61d(val* self, short int p0) {
+self->attrs[COLOR_opts__Option___read].s = p0; /* _read on <self:Option> */
+RET_LABEL:;
+}
+/* method opts#Option#value for (self: Option): nullable Object */
+val* opts___opts__Option___value(val* self) {
+val* var /* : nullable Object */;
+val* var1 /* : nullable Object */;
+var1 = self->attrs[COLOR_opts__Option___value].val; /* _value on <self:Option> */
 var = var1;
 RET_LABEL:;
 return var;
 }
 /* method opts#Option#value= for (self: Option, nullable Object) */
-void opts__Option__value_61d(val* self, val* p0) {
+void opts___opts__Option___value_61d(val* self, val* p0) {
 short int var /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
-/* Covariant cast for argument 0 (value) <p0:nullable Object> isa nullable VALUE */
-/* <p0:nullable Object> isa nullable VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+short int is_nullable;
+const char* var_class_name;
+/* Covariant cast for argument 0 (value) <p0:nullable Object> isa VALUE */
+/* <p0:nullable Object> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
+is_nullable = type_struct->is_nullable;
 if(p0 == NULL) {
-var = 1;
+var = is_nullable;
 } else {
-if(cltype >= p0->type->table_size) {
+if(cltype >= (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->table_size) {
 var = 0;
 } else {
-var = p0->type->type_table[cltype] == idtype;
+var = (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->type_table[cltype] == idtype;
 }
 }
-if (!var) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 37);
-exit(1);
+if (unlikely(!var)) {
+var_class_name = p0 == NULL ? "null" : (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 40);
+fatal_exit(1);
 }
 self->attrs[COLOR_opts__Option___value].val = p0; /* _value on <self:Option> */
 RET_LABEL:;
 }
-/* method opts#Option#value= for (self: Object, nullable Object) */
-void VIRTUAL_opts__Option__value_61d(val* self, val* p0) {
-opts__Option__value_61d(self, p0);
-RET_LABEL:;
-}
-/* method opts#Option#value for (self: Option): nullable Object */
-val* opts__Option__value(val* self) {
-val* var /* : nullable Object */;
-val* var1 /* : nullable Object */;
-short int var2 /* : Bool */;
+/* method opts#Option#default_value= for (self: Option, nullable Object) */
+void opts___opts__Option___default_value_61d(val* self, val* p0) {
+short int var /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
 short int is_nullable;
-var1 = self->attrs[COLOR_opts__Option___value].val; /* _value on <self:Option> */
-/* <var1:nullable Object> isa VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+const char* var_class_name;
+/* Covariant cast for argument 0 (default_value) <p0:nullable Object> isa VALUE */
+/* <p0:nullable Object> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
 is_nullable = type_struct->is_nullable;
-if(var1 == NULL) {
-var2 = is_nullable;
+if(p0 == NULL) {
+var = is_nullable;
 } else {
-if(cltype >= var1->type->table_size) {
-var2 = 0;
+if(cltype >= (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->table_size) {
+var = 0;
 } else {
-var2 = var1->type->type_table[cltype] == idtype;
-}
-}
-if (!var2) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 41);
-exit(1);
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var = (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->type_table[cltype] == idtype;
 }
-/* method opts#Option#value for (self: Object): nullable Object */
-val* VIRTUAL_opts__Option__value(val* self) {
-val* var /* : nullable Object */;
-val* var1 /* : nullable Object */;
-var1 = opts__Option__value(self);
-var = var1;
-RET_LABEL:;
-return var;
 }
-/* method opts#Option#default_value for (self: Option): nullable Object */
-val* opts__Option__default_value(val* self) {
-val* var /* : nullable Object */;
-val* var1 /* : nullable Object */;
-var1 = self->attrs[COLOR_opts__Option___default_value].val; /* _default_value on <self:Option> */
-var = var1;
-RET_LABEL:;
-return var;
+if (unlikely(!var)) {
+var_class_name = p0 == NULL ? "null" : (((long)p0&3)?type_info[((long)p0&3)]:p0->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 43);
+fatal_exit(1);
 }
-/* method opts#Option#default_value for (self: Object): nullable Object */
-val* VIRTUAL_opts__Option__default_value(val* self) {
-val* var /* : nullable Object */;
-val* var1 /* : nullable Object */;
-var1 = opts__Option__default_value(self);
-var = var1;
+self->attrs[COLOR_opts__Option___default_value].val = p0; /* _default_value on <self:Option> */
 RET_LABEL:;
-return var;
 }
-/* method opts#Option#default_value= for (self: Option, nullable Object) */
-void opts__Option__default_value_61d(val* self, val* p0) {
+/* method opts#Option#init for (self: Option, String, nullable Object, nullable Array[String]) */
+void opts___opts__Option___init(val* self, val* p0, val* p1, val* p2) {
 short int var /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
-/* Covariant cast for argument 0 (default_value) <p0:nullable Object> isa nullable VALUE */
-/* <p0:nullable Object> isa nullable VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+short int is_nullable;
+const char* var_class_name;
+val* var_help /* var help: String */;
+val* var_default /* var default: nullable Object */;
+val* var_names /* var names: nullable Array[String] */;
+/* Covariant cast for argument 1 (default) <p1:nullable Object> isa VALUE */
+/* <p1:nullable Object> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
-if(p0 == NULL) {
-var = 1;
+is_nullable = type_struct->is_nullable;
+if(p1 == NULL) {
+var = is_nullable;
 } else {
-if(cltype >= p0->type->table_size) {
+if(cltype >= (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->table_size) {
 var = 0;
 } else {
-var = p0->type->type_table[cltype] == idtype;
+var = (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->type_table[cltype] == idtype;
 }
 }
-if (!var) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 43);
-exit(1);
+if (unlikely(!var)) {
+var_class_name = p1 == NULL ? "null" : (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 46);
+fatal_exit(1);
 }
-self->attrs[COLOR_opts__Option___default_value].val = p0; /* _default_value on <self:Option> */
-RET_LABEL:;
+{
+{ /* Inline kernel#Object#init (self) on <self:Option> */
+RET_LABEL1:(void)0;
+}
+}
+var_help = p0;
+var_default = p1;
+var_names = p2;
+{
+opts___opts__Option___init_opt(self, var_help, var_default, var_names); /* Direct call opts#Option#init_opt on <self:Option>*/
 }
-/* method opts#Option#default_value= for (self: Object, nullable Object) */
-void VIRTUAL_opts__Option__default_value_61d(val* self, val* p0) {
-opts__Option__default_value_61d(self, p0);
 RET_LABEL:;
 }
 /* method opts#Option#init_opt for (self: Option, String, nullable Object, nullable Array[String]) */
-void opts__Option__init_opt(val* self, val* p0, val* p1, val* p2) {
+void opts___opts__Option___init_opt(val* self, val* p0, val* p1, val* p2) {
 short int var /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
+short int is_nullable;
+const char* var_class_name;
 val* var_help /* var help: String */;
 val* var_default /* var default: nullable Object */;
 val* var_names /* var names: nullable Array[String] */;
-val* var1 /* : null */;
+short int var1 /* : Bool */;
 short int var2 /* : Bool */;
 val* var3 /* : Array[String] */;
-val* var4 /* : Array[nullable Object] */;
-short int var5 /* : Bool */;
-short int var6 /* : Bool */;
-val* var7 /* : Array[String] */;
-/* Covariant cast for argument 1 (default) <p1:nullable Object> isa nullable VALUE */
-/* <p1:nullable Object> isa nullable VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+val* var5 /* : Array[nullable Object] */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+const struct type* type_struct12;
+short int is_nullable13;
+const char* var_class_name14;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+const struct type* type_struct19;
+short int is_nullable20;
+const char* var_class_name21;
+/* Covariant cast for argument 1 (default) <p1:nullable Object> isa VALUE */
+/* <p1:nullable Object> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
+is_nullable = type_struct->is_nullable;
 if(p1 == NULL) {
-var = 1;
+var = is_nullable;
 } else {
-if(cltype >= p1->type->table_size) {
+if(cltype >= (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->table_size) {
 var = 0;
 } else {
-var = p1->type->type_table[cltype] == idtype;
+var = (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->type_table[cltype] == idtype;
 }
 }
-if (!var) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 46);
-exit(1);
+if (unlikely(!var)) {
+var_class_name = p1 == NULL ? "null" : (((long)p1&3)?type_info[((long)p1&3)]:p1->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 51);
+fatal_exit(1);
 }
 var_help = p0;
 var_default = p1;
 var_names = p2;
-var1 = NULL;
 if (var_names == NULL) {
-var2 = 1; /* is null */
+var1 = 1; /* is null */
 } else {
-var2 = 0; /* arg is null but recv is not */
+var1 = 0; /* arg is null but recv is not */
 }
-if (var2){
-var3 = NEW_array__Array(&type_array__Arraystring__String);
-((void (*)(val*))(var3->class->vft[COLOR_array__Array__init]))(var3) /* init on <var3:Array[String]>*/;
-CHECK_NEW_array__Array(var3);
+if (0) {
+var2 = core___core__Array___core__kernel__Object___61d_61d(var_names, ((val*)NULL));
+var1 = var2;
+}
+if (var1){
+var3 = NEW_core__Array(&type_core__Array__core__String);
+{
+core___core__Array___core__kernel__Object__init(var3); /* Direct call array#Array#init on <var3:Array[String]>*/
+}
+{
+{ /* Inline opts#Option#names= (self,var3) on <self:Option> */
 self->attrs[COLOR_opts__Option___names].val = var3; /* _names on <self:Option> */
+RET_LABEL4:(void)0;
+}
+}
 } else {
-var4 = ((val* (*)(val*))(var_names->class->vft[COLOR_array__Collection__to_a]))(var_names) /* to_a on <var_names:nullable Array[String](Array[String])>*/;
-self->attrs[COLOR_opts__Option___names].val = var4; /* _names on <self:Option> */
+{
+var5 = core__array___Collection___to_a(var_names);
+}
+{
+{ /* Inline opts#Option#names= (self,var5) on <self:Option> */
+self->attrs[COLOR_opts__Option___names].val = var5; /* _names on <self:Option> */
+RET_LABEL6:(void)0;
+}
 }
+}
+{
+{ /* Inline opts#Option#helptext= (self,var_help) on <self:Option> */
 self->attrs[COLOR_opts__Option___helptext].val = var_help; /* _helptext on <self:Option> */
-var5 = 0;
-self->attrs[COLOR_opts__Option___mandatory].s = var5; /* _mandatory on <self:Option> */
-var6 = 0;
-self->attrs[COLOR_opts__Option___read].s = var6; /* _read on <self:Option> */
+RET_LABEL7:(void)0;
+}
+}
+{
+{ /* Inline opts#Option#default_value= (self,var_default) on <self:Option> */
+/* Covariant cast for argument 0 (default_value) <var_default:nullable Object> isa VALUE */
+/* <var_default:nullable Object> isa VALUE */
+type_struct12 = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
+cltype10 = type_struct12->color;
+idtype11 = type_struct12->id;
+is_nullable13 = type_struct12->is_nullable;
+if(var_default == NULL) {
+var9 = is_nullable13;
+} else {
+if(cltype10 >= (((long)var_default&3)?type_info[((long)var_default&3)]:var_default->type)->table_size) {
+var9 = 0;
+} else {
+var9 = (((long)var_default&3)?type_info[((long)var_default&3)]:var_default->type)->type_table[cltype10] == idtype11;
+}
+}
+if (unlikely(!var9)) {
+var_class_name14 = var_default == NULL ? "null" : (((long)var_default&3)?type_info[((long)var_default&3)]:var_default->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name14);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 43);
+fatal_exit(1);
+}
 self->attrs[COLOR_opts__Option___default_value].val = var_default; /* _default_value on <self:Option> */
-self->attrs[COLOR_opts__Option___value].val = var_default; /* _value on <self:Option> */
-var7 = NEW_array__Array(&type_array__Arraystring__String);
-((void (*)(val*))(var7->class->vft[COLOR_array__Array__init]))(var7) /* init on <var7:Array[String]>*/;
-CHECK_NEW_array__Array(var7);
-self->attrs[COLOR_opts__Option___errors].val = var7; /* _errors on <self:Option> */
-RET_LABEL:;
+RET_LABEL8:(void)0;
 }
-/* method opts#Option#init_opt for (self: Object, String, nullable Object, nullable Array[String]) */
-void VIRTUAL_opts__Option__init_opt(val* self, val* p0, val* p1, val* p2) {
-opts__Option__init_opt(self, p0, p1, p2);
-RET_LABEL:;
 }
-/* method opts#Option#add_aliases for (self: Option, Array[String]) */
-void opts__Option__add_aliases(val* self, val* p0) {
-val* var_names /* var names: Array[String] */;
-val* var /* : Array[String] */;
-var_names = p0;
-var = self->attrs[COLOR_opts__Option___names].val; /* _names on <self:Option> */
-if (var == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _names", "lib/opts.nit", 63);
-exit(1);
+{
+{ /* Inline opts#Option#value= (self,var_default) on <self:Option> */
+/* Covariant cast for argument 0 (value) <var_default:nullable Object> isa VALUE */
+/* <var_default:nullable Object> isa VALUE */
+type_struct19 = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
+cltype17 = type_struct19->color;
+idtype18 = type_struct19->id;
+is_nullable20 = type_struct19->is_nullable;
+if(var_default == NULL) {
+var16 = is_nullable20;
+} else {
+if(cltype17 >= (((long)var_default&3)?type_info[((long)var_default&3)]:var_default->type)->table_size) {
+var16 = 0;
+} else {
+var16 = (((long)var_default&3)?type_info[((long)var_default&3)]:var_default->type)->type_table[cltype17] == idtype18;
 }
-((void (*)(val*, val*))(var->class->vft[COLOR_abstract_collection__SimpleCollection__add_all]))(var, var_names) /* add_all on <var:Array[String]>*/;
-RET_LABEL:;
 }
-/* method opts#Option#add_aliases for (self: Object, Array[String]) */
-void VIRTUAL_opts__Option__add_aliases(val* self, val* p0) {
-opts__Option__add_aliases(self, p0);
-RET_LABEL:;
+if (unlikely(!var16)) {
+var_class_name21 = var_default == NULL ? "null" : (((long)var_default&3)?type_info[((long)var_default&3)]:var_default->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name21);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 40);
+fatal_exit(1);
+}
+self->attrs[COLOR_opts__Option___value].val = var_default; /* _value on <self:Option> */
+RET_LABEL15:(void)0;
+}
 }
-/* method opts#Option#to_s for (self: Option): String */
-val* opts__Option__to_s(val* self) {
-val* var /* : String */;
-long var1 /* : Int */;
-val* var2 /* : String */;
-var1 = 2;
-var2 = ((val* (*)(val*, long))(self->class->vft[COLOR_opts__Option__pretty]))(self, var1) /* pretty on <self:Option>*/;
-var = var2;
-goto RET_LABEL;
 RET_LABEL:;
-return var;
 }
-/* method opts#Option#to_s for (self: Object): String */
-val* VIRTUAL_opts__Option__to_s(val* self) {
+/* method opts#Option#to_s for (self: Option): String */
+val* opts___opts__Option___core__abstract_text__Object__to_s(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
-var1 = opts__Option__to_s(self);
+{
+var1 = opts___opts__Option___pretty(self, 2l);
+}
 var = var1;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
 /* method opts#Option#pretty for (self: Option, Int): String */
-val* opts__Option__pretty(val* self, long p0) {
+val* opts___opts__Option___pretty(val* self, long p0) {
 val* var /* : String */;
 long var_off /* var off: Int */;
-val* var1 /* : Buffer */;
+val* var1 /* : FlatBuffer */;
 static val* varonce;
 val* var2 /* : String */;
 char* var3 /* : NativeString */;
-long var4 /* : Int */;
-val* var5 /* : String */;
-val* var_text /* var text: Buffer */;
-val* var6 /* : Array[String] */;
-static val* varonce7;
-val* var8 /* : String */;
-char* var9 /* : NativeString */;
-long var10 /* : Int */;
+val* var4 /* : String */;
+val* var_text /* var text: FlatBuffer */;
+val* var5 /* : Array[String] */;
+val* var7 /* : Array[String] */;
+static val* varonce8;
+val* var9 /* : String */;
+char* var10 /* : NativeString */;
 val* var11 /* : String */;
 val* var12 /* : String */;
 static val* varonce13;
 val* var14 /* : String */;
 char* var15 /* : NativeString */;
-long var16 /* : Int */;
-val* var17 /* : String */;
-long var18 /* : Int */;
+val* var16 /* : String */;
+long var17 /* : Int */;
 long var19 /* : Int */;
-long var21 /* : Int */;
-long var_rest /* var rest: Int */;
-long var22 /* : Int */;
-short int var23 /* : Bool */;
-short int var25 /* : Bool */;
+long var20 /* : Int */;
+short int var22 /* : Bool */;
 int cltype;
 int idtype;
+const char* var_class_name;
+long var23 /* : Int */;
+long var_rest /* var rest: Int */;
+short int var24 /* : Bool */;
 short int var26 /* : Bool */;
-static val* varonce27;
-val* var28 /* : String */;
-char* var29 /* : NativeString */;
-long var30 /* : Int */;
-val* var31 /* : String */;
+int cltype27;
+int idtype28;
+const char* var_class_name29;
+short int var30 /* : Bool */;
+static val* varonce31;
 val* var32 /* : String */;
-val* var33 /* : String */;
+char* var33 /* : NativeString */;
 val* var34 /* : String */;
+val* var35 /* : String */;
+val* var36 /* : String */;
+val* var38 /* : String */;
+val* var39 /* : String */;
 var_off = p0;
-var1 = NEW_string__Buffer(&type_string__Buffer);
-if (varonce) {
+var1 = NEW_core__FlatBuffer(&type_core__FlatBuffer);
+if (likely(varonce!=NULL)) {
 var2 = varonce;
 } else {
 var3 = "  ";
-var4 = 2;
-var5 = string__NativeString__to_s_with_length(var3, var4);
-var2 = var5;
+var4 = core__flat___NativeString___to_s_full(var3, 2l, 2l);
+var2 = var4;
 varonce = var2;
 }
-((void (*)(val*, val*))(var1->class->vft[COLOR_string__Buffer__from]))(var1, var2) /* from on <var1:Buffer>*/;
-CHECK_NEW_string__Buffer(var1);
+{
+core___core__FlatBuffer___from(var1, var2); /* Direct call flat#FlatBuffer#from on <var1:FlatBuffer>*/
+}
 var_text = var1;
-var6 = self->attrs[COLOR_opts__Option___names].val; /* _names on <self:Option> */
-if (var6 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _names", "lib/opts.nit", 72);
-exit(1);
-}
-if (varonce7) {
-var8 = varonce7;
-} else {
-var9 = ", ";
-var10 = 2;
-var11 = string__NativeString__to_s_with_length(var9, var10);
-var8 = var11;
-varonce7 = var8;
-}
-var12 = ((val* (*)(val*, val*))(var6->class->vft[COLOR_string__Collection__join]))(var6, var8) /* join on <var6:Array[String]>*/;
-((void (*)(val*, val*))(var_text->class->vft[COLOR_abstract_collection__Sequence__append]))(var_text, var12) /* append on <var_text:Buffer>*/;
-if (varonce13) {
+{
+{ /* Inline opts#Option#names (self) on <self:Option> */
+var7 = self->attrs[COLOR_opts__Option___names].val; /* _names on <self:Option> */
+if (unlikely(var7 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
+}
+var5 = var7;
+RET_LABEL6:(void)0;
+}
+}
+if (likely(varonce8!=NULL)) {
+var9 = varonce8;
+} else {
+var10 = ", ";
+var11 = core__flat___NativeString___to_s_full(var10, 2l, 2l);
+var9 = var11;
+varonce8 = var9;
+}
+{
+var12 = core__abstract_text___Collection___join(var5, var9);
+}
+{
+core___core__FlatBuffer___core__abstract_text__Buffer__append(var_text, var12); /* Direct call flat#FlatBuffer#append on <var_text:FlatBuffer>*/
+}
+if (likely(varonce13!=NULL)) {
 var14 = varonce13;
 } else {
 var15 = "  ";
-var16 = 2;
-var17 = string__NativeString__to_s_with_length(var15, var16);
-var14 = var17;
+var16 = core__flat___NativeString___to_s_full(var15, 2l, 2l);
+var14 = var16;
 varonce13 = var14;
 }
-((void (*)(val*, val*))(var_text->class->vft[COLOR_abstract_collection__Sequence__append]))(var_text, var14) /* append on <var_text:Buffer>*/;
-var18 = ((long (*)(val*))(var_text->class->vft[COLOR_abstract_collection__Collection__length]))(var_text) /* length on <var_text:Buffer>*/;
-{ /* Inline kernel#Int#- (var_off,var18) */
-var21 = var_off - var18;
-var19 = var21;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
-}
-var_rest = var19;
-var22 = 0;
-{ /* Inline kernel#Int#> (var_rest,var22) */
-/* Covariant cast for argument 0 (i) <var22:Int> isa OTHER */
-/* <var22:Int> isa OTHER */
-var25 = 1; /* easy <var22:Int> isa OTHER*/
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/standard/kernel.nit", 259);
-exit(1);
-}
-var26 = var_rest > var22;
-var23 = var26;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
-}
-if (var23){
-if (varonce27) {
-var28 = varonce27;
-} else {
-var29 = " ";
-var30 = 1;
-var31 = string__NativeString__to_s_with_length(var29, var30);
-var28 = var31;
-varonce27 = var28;
-}
-var32 = ((val* (*)(val*, long))(var28->class->vft[COLOR_string__String___42d]))(var28, var_rest) /* * on <var28:String>*/;
-((void (*)(val*, val*))(var_text->class->vft[COLOR_abstract_collection__Sequence__append]))(var_text, var32) /* append on <var_text:Buffer>*/;
-} else {
-}
-var33 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__helptext]))(self) /* helptext on <self:Option>*/;
-((void (*)(val*, val*))(var_text->class->vft[COLOR_abstract_collection__Sequence__append]))(var_text, var33) /* append on <var_text:Buffer>*/;
-var34 = ((val* (*)(val*))(var_text->class->vft[COLOR_string__Object__to_s]))(var_text) /* to_s on <var_text:Buffer>*/;
-var = var34;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+{
+core___core__FlatBuffer___core__abstract_text__Buffer__append(var_text, var14); /* Direct call flat#FlatBuffer#append on <var_text:FlatBuffer>*/
 }
-/* method opts#Option#pretty for (self: Object, Int): String */
-val* VIRTUAL_opts__Option__pretty(val* self, long p0) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__Option__pretty(self, p0);
-var = var1;
-RET_LABEL:;
-return var;
+{
+{ /* Inline abstract_text#FlatText#length (var_text) on <var_text:FlatBuffer> */
+var19 = var_text->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_text:FlatBuffer> */
+var17 = var19;
+RET_LABEL18:(void)0;
 }
-/* method opts#Option#pretty_default for (self: Option): String */
-val* opts__Option__pretty_default(val* self) {
-val* var /* : String */;
-val* var1 /* : nullable Object */;
-val* var_dv /* var dv: nullable Object */;
-val* var2 /* : null */;
-short int var3 /* : Bool */;
-val* var4 /* : Array[Object] */;
-long var5 /* : Int */;
-val* var_ /* var : Array[Object] */;
-static val* varonce;
-val* var6 /* : String */;
-char* var7 /* : NativeString */;
-long var8 /* : Int */;
-val* var9 /* : String */;
-static val* varonce10;
-val* var11 /* : String */;
-char* var12 /* : NativeString */;
-long var13 /* : Int */;
-val* var14 /* : String */;
-val* var15 /* : String */;
-static val* varonce16;
-val* var17 /* : String */;
-char* var18 /* : NativeString */;
-long var19 /* : Int */;
-val* var20 /* : String */;
-var1 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__default_value]))(self) /* default_value on <self:Option>*/;
-var_dv = var1;
-var2 = NULL;
-if (var_dv == NULL) {
-var3 = 0; /* is null */
-} else {
-var3 = 1; /* arg is null and recv is not */
 }
-if (var3){
-var4 = NEW_array__Array(&type_array__Arraykernel__Object);
-var5 = 3;
-((void (*)(val*, long))(var4->class->vft[COLOR_array__Array__with_capacity]))(var4, var5) /* with_capacity on <var4:Array[Object]>*/;
-CHECK_NEW_array__Array(var4);
-var_ = var4;
-if (varonce) {
-var6 = varonce;
+{
+{ /* Inline kernel#Int#- (var_off,var17) on <var_off:Int> */
+/* Covariant cast for argument 0 (i) <var17:Int> isa OTHER */
+/* <var17:Int> isa OTHER */
+var22 = 1; /* easy <var17:Int> isa OTHER*/
+if (unlikely(!var22)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+fatal_exit(1);
+}
+var23 = var_off - var17;
+var20 = var23;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
+}
+}
+var_rest = var20;
+{
+{ /* Inline kernel#Int#> (var_rest,0l) on <var_rest:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var26 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var26)) {
+var_class_name29 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+fatal_exit(1);
+}
+var30 = var_rest > 0l;
+var24 = var30;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
+}
+}
+if (var24){
+if (likely(varonce31!=NULL)) {
+var32 = varonce31;
 } else {
-var7 = " (";
-var8 = 2;
-var9 = string__NativeString__to_s_with_length(var7, var8);
-var6 = var9;
-varonce = var6;
+var33 = " ";
+var34 = core__flat___NativeString___to_s_full(var33, 1l, 1l);
+var32 = var34;
+varonce31 = var32;
 }
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var6) /* add on <var_:Array[Object]>*/;
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var_dv) /* add on <var_:Array[Object]>*/;
-if (varonce10) {
-var11 = varonce10;
-} else {
-var12 = ")";
-var13 = 1;
-var14 = string__NativeString__to_s_with_length(var12, var13);
-var11 = var14;
-varonce10 = var11;
+{
+var35 = ((val*(*)(val* self, long p0))(var32->class->vft[COLOR_core__abstract_text__String___42d]))(var32, var_rest); /* * on <var32:String>*/
 }
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var11) /* add on <var_:Array[Object]>*/;
-var15 = ((val* (*)(val*))(var_->class->vft[COLOR_string__Object__to_s]))(var_) /* to_s on <var_:Array[Object]>*/;
-var = var15;
-goto RET_LABEL;
-} else {
+{
+core___core__FlatBuffer___core__abstract_text__Buffer__append(var_text, var35); /* Direct call flat#FlatBuffer#append on <var_text:FlatBuffer>*/
 }
-if (varonce16) {
-var17 = varonce16;
 } else {
-var18 = "";
-var19 = 0;
-var20 = string__NativeString__to_s_with_length(var18, var19);
-var17 = var20;
-varonce16 = var17;
-}
-var = var17;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method opts#Option#pretty_default for (self: Object): String */
-val* VIRTUAL_opts__Option__pretty_default(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__Option__pretty_default(self);
-var = var1;
-RET_LABEL:;
-return var;
+{
+{ /* Inline opts#Option#helptext (self) on <self:Option> */
+var38 = self->attrs[COLOR_opts__Option___helptext].val; /* _helptext on <self:Option> */
+if (unlikely(var38 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _helptext");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 25);
+fatal_exit(1);
 }
-/* method opts#Option#read_param for (self: Option, Iterator[String]) */
-void opts__Option__read_param(val* self, val* p0) {
-val* var_it /* var it: Iterator[String] */;
-short int var /* : Bool */;
-var_it = p0;
-var = 1;
-self->attrs[COLOR_opts__Option___read].s = var; /* _read on <self:Option> */
-RET_LABEL:;
+var36 = var38;
+RET_LABEL37:(void)0;
 }
-/* method opts#Option#read_param for (self: Object, Iterator[String]) */
-void VIRTUAL_opts__Option__read_param(val* self, val* p0) {
-opts__Option__read_param(self, p0);
-RET_LABEL:;
 }
-/* method opts#OptionText#init for (self: OptionText, String) */
-void opts__OptionText__init(val* self, val* p0) {
-val* var_text /* var text: String */;
-val* var /* : null */;
-val* var1 /* : null */;
-var_text = p0;
-var = NULL;
-var1 = NULL;
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__Option__init_opt]))(self, var_text, var, var1) /* init_opt on <self:OptionText>*/;
-RET_LABEL:;
+{
+core___core__FlatBuffer___core__abstract_text__Buffer__append(var_text, var36); /* Direct call flat#FlatBuffer#append on <var_text:FlatBuffer>*/
 }
-/* method opts#OptionText#init for (self: Object, String) */
-void VIRTUAL_opts__OptionText__init(val* self, val* p0) {
-opts__OptionText__init(self, p0);
-RET_LABEL:;
+{
+var39 = core___core__FlatBuffer___core__abstract_text__Object__to_s(var_text);
 }
-/* method opts#OptionText#pretty for (self: OptionText, Int): String */
-val* opts__OptionText__pretty(val* self, long p0) {
-val* var /* : String */;
-long var_off /* var off: Int */;
-val* var1 /* : String */;
-var_off = p0;
-var1 = ((val* (*)(val*))(self->class->vft[COLOR_string__Object__to_s]))(self) /* to_s on <self:OptionText>*/;
-var = var1;
+var = var39;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionText#pretty for (self: Object, Int): String */
-val* VIRTUAL_opts__OptionText__pretty(val* self, long p0) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__OptionText__pretty(self, p0);
-var = var1;
-RET_LABEL:;
-return var;
+/* method opts#Option#read_param for (self: Option, OptionContext, Iterator[String]) */
+void opts___opts__Option___read_param(val* self, val* p0, val* p1) {
+val* var_opts /* var opts: OptionContext */;
+val* var_it /* var it: Iterator[String] */;
+var_opts = p0;
+var_it = p1;
+{
+{ /* Inline opts#Option#read= (self,1) on <self:Option> */
+self->attrs[COLOR_opts__Option___read].s = 1; /* _read on <self:Option> */
+RET_LABEL1:(void)0;
 }
-/* method opts#OptionText#to_s for (self: OptionText): String */
-val* opts__OptionText__to_s(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__helptext]))(self) /* helptext on <self:OptionText>*/;
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method opts#OptionText#to_s for (self: Object): String */
-val* VIRTUAL_opts__OptionText__to_s(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__OptionText__to_s(self);
-var = var1;
 RET_LABEL:;
-return var;
 }
 /* method opts#OptionBool#init for (self: OptionBool, String, Array[String]) */
-void opts__OptionBool__init(val* self, val* p0, val* p1) {
+void opts___opts__OptionBool___init(val* self, val* p0, val* p1) {
 val* var_help /* var help: String */;
 val* var_names /* var names: Array[String] */;
-short int var /* : Bool */;
-val* var1 /* : nullable Object */;
+val* var /* : nullable Object */;
 var_help = p0;
 var_names = p1;
-var = 0;
-var1 = BOX_kernel__Bool(var); /* autobox from Bool to nullable Object */
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__Option__init_opt]))(self, var_help, var1, var_names) /* init_opt on <self:OptionBool>*/;
-RET_LABEL:;
+{
+var = (val*)((long)(0)<<2|3);
+opts___opts__Option___init(self, var_help, var, var_names); /* Direct call opts#Option#init on <self:OptionBool>*/
 }
-/* method opts#OptionBool#init for (self: Object, String, Array[String]) */
-void VIRTUAL_opts__OptionBool__init(val* self, val* p0, val* p1) {
-opts__OptionBool__init(self, p0, p1);
 RET_LABEL:;
 }
-/* method opts#OptionBool#read_param for (self: OptionBool, Iterator[String]) */
-void opts__OptionBool__read_param(val* self, val* p0) {
+/* method opts#OptionBool#read_param for (self: OptionBool, OptionContext, Iterator[String]) */
+void opts___opts__OptionBool___Option__read_param(val* self, val* p0, val* p1) {
+val* var_opts /* var opts: OptionContext */;
 val* var_it /* var it: Iterator[String] */;
 short int var /* : Bool */;
-val* var1 /* : nullable Object */;
-var_it = p0;
-((void (*)(val*, val*))(self->class->vft[COLOR_opts__OptionBool__read_param]))(self, p0) /* read_param on <self:OptionBool>*/;
-var = 1;
-var1 = BOX_kernel__Bool(var); /* autobox from Bool to nullable Object */
-((void (*)(val*, val*))(self->class->vft[COLOR_opts__Option__value_61d]))(self, var1) /* value= on <self:OptionBool>*/;
-RET_LABEL:;
+int cltype;
+int idtype;
+const struct type* type_struct;
+const char* var_class_name;
+val* var2 /* : nullable Object */;
+var_opts = p0;
+var_it = p1;
+{
+((void(*)(val* self, val* p0, val* p1))(self->class->vft[COLOR_opts___opts__OptionBool___Option__read_param]))(self, p0, p1); /* read_param on <self:OptionBool>*/
+}
+{
+{ /* Inline opts#Option#value= (self,1) on <self:OptionBool> */
+/* Covariant cast for argument 0 (value) <1:Bool> isa VALUE */
+/* <1:Bool> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
+cltype = type_struct->color;
+idtype = type_struct->id;
+if(cltype >= (&type_core__Bool)->table_size) {
+var = 0;
+} else {
+var = (&type_core__Bool)->type_table[cltype] == idtype;
+}
+if (unlikely(!var)) {
+var_class_name = type_core__Bool.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 40);
+fatal_exit(1);
+}
+var2 = (val*)((long)(1)<<2|3);
+self->attrs[COLOR_opts__Option___value].val = var2; /* _value on <self:OptionBool> */
+RET_LABEL1:(void)0;
+}
 }
-/* method opts#OptionBool#read_param for (self: Object, Iterator[String]) */
-void VIRTUAL_opts__OptionBool__read_param(val* self, val* p0) {
-opts__OptionBool__read_param(self, p0);
 RET_LABEL:;
 }
 /* method opts#OptionCount#init for (self: OptionCount, String, Array[String]) */
-void opts__OptionCount__init(val* self, val* p0, val* p1) {
+void opts___opts__OptionCount___init(val* self, val* p0, val* p1) {
 val* var_help /* var help: String */;
 val* var_names /* var names: Array[String] */;
-long var /* : Int */;
-val* var1 /* : nullable Object */;
+val* var /* : nullable Object */;
 var_help = p0;
 var_names = p1;
-var = 0;
-var1 = BOX_kernel__Int(var); /* autobox from Int to nullable Object */
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__Option__init_opt]))(self, var_help, var1, var_names) /* init_opt on <self:OptionCount>*/;
-RET_LABEL:;
+{
+var = (val*)(0l<<2|1);
+opts___opts__Option___init(self, var_help, var, var_names); /* Direct call opts#Option#init on <self:OptionCount>*/
 }
-/* method opts#OptionCount#init for (self: Object, String, Array[String]) */
-void VIRTUAL_opts__OptionCount__init(val* self, val* p0, val* p1) {
-opts__OptionCount__init(self, p0, p1);
 RET_LABEL:;
 }
-/* method opts#OptionCount#read_param for (self: OptionCount, Iterator[String]) */
-void opts__OptionCount__read_param(val* self, val* p0) {
+/* method opts#OptionCount#read_param for (self: OptionCount, OptionContext, Iterator[String]) */
+void opts___opts__OptionCount___Option__read_param(val* self, val* p0, val* p1) {
+val* var_opts /* var opts: OptionContext */;
 val* var_it /* var it: Iterator[String] */;
 val* var_ /* var : OptionCount */;
 val* var /* : nullable Object */;
-long var1 /* : Int */;
-long var2 /* : Int */;
-long var4 /* : Int */;
-long var5 /* : Int */;
-val* var6 /* : nullable Object */;
-var_it = p0;
-((void (*)(val*, val*))(self->class->vft[COLOR_opts__OptionCount__read_param]))(self, p0) /* read_param on <self:OptionCount>*/;
+val* var2 /* : nullable Object */;
+long var3 /* : Int */;
+short int var5 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+long var6 /* : Int */;
+long var7 /* : Int */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+const struct type* type_struct;
+const char* var_class_name12;
+val* var13 /* : nullable Object */;
+var_opts = p0;
+var_it = p1;
+{
+((void(*)(val* self, val* p0, val* p1))(self->class->vft[COLOR_opts___opts__OptionCount___Option__read_param]))(self, p0, p1); /* read_param on <self:OptionCount>*/
+}
 var_ = self;
-var = ((val* (*)(val*))(var_->class->vft[COLOR_opts__Option__value]))(var_) /* value on <var_:OptionCount>*/;
-var1 = 1;
-{ /* Inline kernel#Int#+ (var,var1) */
-var4 = ((struct instance_kernel__Int*)var)->value; /* autounbox from nullable Object to Int */;
-var5 = var4 + var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
+{
+{ /* Inline opts#Option#value (var_) on <var_:OptionCount> */
+var2 = var_->attrs[COLOR_opts__Option___value].val; /* _value on <var_:OptionCount> */
+var = var2;
+RET_LABEL1:(void)0;
+}
+}
+{
+{ /* Inline kernel#Int#+ (var,1l) on <var:nullable Object(Int)> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var5 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var5)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+fatal_exit(1);
+}
+var6 = (long)(var)>>2;
+var7 = var6 + 1l;
+var3 = var7;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
+}
+}
+{
+{ /* Inline opts#Option#value= (var_,var3) on <var_:OptionCount> */
+/* Covariant cast for argument 0 (value) <var3:Int> isa VALUE */
+/* <var3:Int> isa VALUE */
+type_struct = var_->type->resolution_table->types[COLOR_opts__Option__VALUE];
+cltype10 = type_struct->color;
+idtype11 = type_struct->id;
+if(cltype10 >= (&type_core__Int)->table_size) {
+var9 = 0;
+} else {
+var9 = (&type_core__Int)->type_table[cltype10] == idtype11;
 }
-var6 = BOX_kernel__Int(var2); /* autobox from Int to nullable Object */
-((void (*)(val*, val*))(var_->class->vft[COLOR_opts__Option__value_61d]))(var_, var6) /* value= on <var_:OptionCount>*/;
-RET_LABEL:;
+if (unlikely(!var9)) {
+var_class_name12 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name12);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 40);
+fatal_exit(1);
 }
-/* method opts#OptionCount#read_param for (self: Object, Iterator[String]) */
-void VIRTUAL_opts__OptionCount__read_param(val* self, val* p0) {
-opts__OptionCount__read_param(self, p0);
-RET_LABEL:;
+var13 = (val*)(var3<<2|1);
+var_->attrs[COLOR_opts__Option___value].val = var13; /* _value on <var_:OptionCount> */
+RET_LABEL8:(void)0;
 }
-/* method opts#OptionParameter#convert for (self: OptionParameter, String): nullable Object */
-val* opts__OptionParameter__convert(val* self, val* p0) {
-val* var /* : nullable Object */;
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Deferred method called", "lib/opts.nit", 133);
-exit(1);
-RET_LABEL:;
-return var;
 }
-/* method opts#OptionParameter#convert for (self: Object, String): nullable Object */
-val* VIRTUAL_opts__OptionParameter__convert(val* self, val* p0) {
-val* var /* : nullable Object */;
-val* var1 /* : nullable Object */;
-var1 = opts__OptionParameter__convert(self, p0);
-var = var1;
 RET_LABEL:;
-return var;
 }
 /* method opts#OptionParameter#parameter_mandatory for (self: OptionParameter): Bool */
-short int opts__OptionParameter__parameter_mandatory(val* self) {
+short int opts___opts__OptionParameter___parameter_mandatory(val* self) {
 short int var /* : Bool */;
 short int var1 /* : Bool */;
 var1 = self->attrs[COLOR_opts__OptionParameter___parameter_mandatory].s; /* _parameter_mandatory on <self:OptionParameter> */
@@ -747,204 +704,338 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionParameter#parameter_mandatory for (self: Object): Bool */
-short int VIRTUAL_opts__OptionParameter__parameter_mandatory(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = opts__OptionParameter__parameter_mandatory(self);
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionParameter#parameter_mandatory= for (self: OptionParameter, Bool) */
-void opts__OptionParameter__parameter_mandatory_61d(val* self, short int p0) {
-self->attrs[COLOR_opts__OptionParameter___parameter_mandatory].s = p0; /* _parameter_mandatory on <self:OptionParameter> */
-RET_LABEL:;
-}
-/* method opts#OptionParameter#parameter_mandatory= for (self: Object, Bool) */
-void VIRTUAL_opts__OptionParameter__parameter_mandatory_61d(val* self, short int p0) {
-opts__OptionParameter__parameter_mandatory_61d(self, p0);
-RET_LABEL:;
-}
-/* method opts#OptionParameter#read_param for (self: OptionParameter, Iterator[String]) */
-void opts__OptionParameter__read_param(val* self, val* p0) {
+/* method opts#OptionParameter#read_param for (self: OptionParameter, OptionContext, Iterator[String]) */
+void opts___opts__OptionParameter___Option__read_param(val* self, val* p0, val* p1) {
+val* var_opts /* var opts: OptionContext */;
 val* var_it /* var it: Iterator[String] */;
 short int var /* : Bool */;
+short int var_ok /* var ok: Bool */;
 short int var1 /* : Bool */;
+short int var2 /* : Bool */;
+short int var3 /* : Bool */;
 short int var_ /* var : Bool */;
-val* var2 /* : nullable Object */;
-val* var3 /* : nullable Object */;
-char var4 /* : Char */;
-short int var5 /* : Bool */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
 short int var7 /* : Bool */;
-char var8 /* : Char */;
-short int var9 /* : Bool */;
-val* var10 /* : nullable Object */;
-val* var11 /* : nullable Object */;
-short int var12 /* : Bool */;
-val* var13 /* : Array[String] */;
+short int var_8 /* var : Bool */;
+val* var9 /* : nullable Object */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
+short int var_12 /* var : Bool */;
+val* var13 /* : nullable Object */;
+val* var14 /* : SequenceRead[Char] */;
+val* var15 /* : nullable Object */;
+short int var16 /* : Bool */;
+short int var18 /* : Bool */;
+uint32_t var19 /* : Char */;
+val* var20 /* : Array[Option] */;
+val* var22 /* : Array[Option] */;
+val* var_23 /* var : Array[Option] */;
+val* var24 /* : IndexedIterator[nullable Object] */;
+val* var_25 /* var : IndexedIterator[Option] */;
+short int var26 /* : Bool */;
+val* var27 /* : nullable Object */;
+val* var_opt /* var opt: Option */;
+val* var28 /* : Array[String] */;
+val* var30 /* : Array[String] */;
+val* var31 /* : nullable Object */;
+short int var32 /* : Bool */;
+val* var33 /* : nullable Object */;
+val* var34 /* : nullable Object */;
+short int var36 /* : Bool */;
+int cltype;
+int idtype;
+const struct type* type_struct;
+short int is_nullable;
+const char* var_class_name;
+val* var37 /* : Array[String] */;
+val* var39 /* : Array[String] */;
+val* var40 /* : NativeArray[String] */;
 static val* varonce;
-val* var14 /* : String */;
-char* var15 /* : NativeString */;
-long var16 /* : Int */;
-val* var17 /* : String */;
-val* var18 /* : Array[String] */;
-val* var19 /* : nullable Object */;
-static val* varonce20;
-val* var21 /* : String */;
-char* var22 /* : NativeString */;
-long var23 /* : Int */;
-val* var24 /* : String */;
-val* var25 /* : Array[Object] */;
-long var26 /* : Int */;
-val* var27 /* : NativeArray[Object] */;
-val* var28 /* : String */;
-var_it = p0;
-((void (*)(val*, val*))(self->class->vft[COLOR_opts__OptionParameter__read_param]))(self, p0) /* read_param on <self:OptionParameter>*/;
-var1 = ((short int (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var_it) /* is_ok on <var_it:Iterator[String]>*/;
-var_ = var1;
+static val* varonce41;
+val* var42 /* : String */;
+char* var43 /* : NativeString */;
+val* var44 /* : String */;
+static val* varonce45;
+val* var46 /* : String */;
+char* var47 /* : NativeString */;
+val* var48 /* : String */;
+val* var49 /* : Array[String] */;
+val* var51 /* : Array[String] */;
+val* var52 /* : nullable Object */;
+val* var53 /* : String */;
+var_opts = p0;
+var_it = p1;
+{
+((void(*)(val* self, val* p0, val* p1))(self->class->vft[COLOR_opts___opts__OptionParameter___Option__read_param]))(self, p0, p1); /* read_param on <self:OptionParameter>*/
+}
+{
+var = ((short int(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_it); /* is_ok on <var_it:Iterator[String]>*/
+}
+var_ok = var;
+var_ = var_ok;
+if (var_ok){
+{
+{ /* Inline opts#OptionParameter#parameter_mandatory (self) on <self:OptionParameter> */
+var6 = self->attrs[COLOR_opts__OptionParameter___parameter_mandatory].s; /* _parameter_mandatory on <self:OptionParameter> */
+var4 = var6;
+RET_LABEL5:(void)0;
+}
+}
+var7 = !var4;
+var3 = var7;
+} else {
+var3 = var_;
+}
+var_8 = var3;
+if (var3){
+{
+var9 = ((val*(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_it); /* item on <var_it:Iterator[String]>*/
+}
+{
+var10 = ((short int(*)(val* self))(var9->class->vft[COLOR_core__abstract_text__Text__is_empty]))(var9); /* is_empty on <var9:nullable Object(String)>*/
+}
+var11 = !var10;
+var2 = var11;
+} else {
+var2 = var_8;
+}
+var_12 = var2;
+if (var2){
+{
+var13 = ((val*(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_it); /* item on <var_it:Iterator[String]>*/
+}
+{
+var14 = ((val*(*)(val* self))(var13->class->vft[COLOR_core__abstract_text__Text__chars]))(var13); /* chars on <var13:nullable Object(String)>*/
+}
+{
+var15 = ((val*(*)(val* self))((((long)var14&3)?class_info[((long)var14&3)]:var14->class)->vft[COLOR_core__abstract_collection__Collection__first]))(var14); /* first on <var14:SequenceRead[Char]>*/
+}
+{
+{ /* Inline kernel#Char#== (var15,'-') on <var15:nullable Object(Char)> */
+var19 = (uint32_t)((long)(var15)>>2);
+var18 = var19 == '-';
+var16 = var18;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
+}
+}
+var1 = var16;
+} else {
+var1 = var_12;
+}
 if (var1){
-var2 = ((val* (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__item]))(var_it) /* item on <var_it:Iterator[String]>*/;
-var3 = ((val* (*)(val*))(var2->class->vft[COLOR_abstract_collection__Collection__first]))(var2) /* first on <var2:nullable Object(String)>*/;
-var4 = '-';
-{ /* Inline kernel#Char#!= (var3,var4) */
-var7 = (var3 != NULL) && (var3->class == &class_kernel__Char);
-if (var7) {
-var8 = ((struct instance_kernel__Char*)var3)->value; /* autounbox from nullable Object to Char */;
-var7 = (var8 == var4);
-}
-var9 = !var7;
-var5 = var9;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+{
+{ /* Inline opts#OptionContext#options (var_opts) on <var_opts:OptionContext> */
+var22 = var_opts->attrs[COLOR_opts__OptionContext___options].val; /* _options on <var_opts:OptionContext> */
+if (unlikely(var22 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var20 = var22;
+RET_LABEL21:(void)0;
 }
-var = var5;
+}
+var_23 = var20;
+{
+var24 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_23);
+}
+var_25 = var24;
+for(;;) {
+{
+var26 = ((short int(*)(val* self))((((long)var_25&3)?class_info[((long)var_25&3)]:var_25->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_25); /* is_ok on <var_25:IndexedIterator[Option]>*/
+}
+if (var26){
 } else {
-var = var_;
+goto BREAK_label;
 }
-if (var){
-var10 = ((val* (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__item]))(var_it) /* item on <var_it:Iterator[String]>*/;
-var11 = ((val* (*)(val*, val*))(self->class->vft[COLOR_opts__OptionParameter__convert]))(self, var10) /* convert on <self:OptionParameter>*/;
-((void (*)(val*, val*))(self->class->vft[COLOR_opts__Option__value_61d]))(self, var11) /* value= on <self:OptionParameter>*/;
-((void (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__next]))(var_it) /* next on <var_it:Iterator[String]>*/;
-} else {
-var12 = self->attrs[COLOR_opts__OptionParameter___parameter_mandatory].s; /* _parameter_mandatory on <self:OptionParameter> */
-if (var12){
-var13 = self->attrs[COLOR_opts__Option___errors].val; /* _errors on <self:OptionParameter> */
-if (var13 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _errors", "lib/opts.nit", 146);
-exit(1);
-}
-if (varonce) {
-var14 = varonce;
-} else {
-var15 = "Parameter expected for option ";
-var16 = 30;
-var17 = string__NativeString__to_s_with_length(var15, var16);
-var14 = var17;
-varonce = var14;
-}
-var18 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__names]))(self) /* names on <self:OptionParameter>*/;
-var19 = ((val* (*)(val*))(var18->class->vft[COLOR_abstract_collection__Collection__first]))(var18) /* first on <var18:Array[String]>*/;
-if (varonce20) {
-var21 = varonce20;
-} else {
-var22 = ".";
-var23 = 1;
-var24 = string__NativeString__to_s_with_length(var22, var23);
-var21 = var24;
-varonce20 = var21;
-}
-var25 = NEW_array__Array(&type_array__Arraykernel__Object);
-{ /* var25 = array_instance Array[Object] */
-var26 = 3;
-var27 = NEW_array__NativeArray(var26, &type_array__NativeArraykernel__Object);
-((struct instance_array__NativeArray*)var27)->values[0] = (val*) var14;
-((struct instance_array__NativeArray*)var27)->values[1] = (val*) var19;
-((struct instance_array__NativeArray*)var27)->values[2] = (val*) var21;
-((void (*)(val*, val*, long))(var25->class->vft[COLOR_array__Array__with_native]))(var25, var27, var26) /* with_native on <var25:Array[Object]>*/;
-CHECK_NEW_array__Array(var25);
-}
-var28 = ((val* (*)(val*))(var25->class->vft[COLOR_string__Object__to_s]))(var25) /* to_s on <var25:Array[Object]>*/;
-((void (*)(val*, val*))(var13->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var13, var28) /* add on <var13:Array[String]>*/;
+{
+var27 = ((val*(*)(val* self))((((long)var_25&3)?class_info[((long)var_25&3)]:var_25->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_25); /* item on <var_25:IndexedIterator[Option]>*/
+}
+var_opt = var27;
+{
+{ /* Inline opts#Option#names (var_opt) on <var_opt:Option> */
+var30 = var_opt->attrs[COLOR_opts__Option___names].val; /* _names on <var_opt:Option> */
+if (unlikely(var30 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
+}
+var28 = var30;
+RET_LABEL29:(void)0;
+}
+}
+{
+var31 = ((val*(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_it); /* item on <var_it:Iterator[String]>*/
+}
+{
+var32 = core___core__AbstractArrayRead___core__abstract_collection__Collection__has(var28, var31);
+}
+if (var32){
+var_ok = 0;
+goto BREAK_label;
 } else {
 }
+{
+((void(*)(val* self))((((long)var_25&3)?class_info[((long)var_25&3)]:var_25->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_25); /* next on <var_25:IndexedIterator[Option]>*/
 }
-RET_LABEL:;
 }
-/* method opts#OptionParameter#read_param for (self: Object, Iterator[String]) */
-void VIRTUAL_opts__OptionParameter__read_param(val* self, val* p0) {
-opts__OptionParameter__read_param(self, p0);
-RET_LABEL:;
+BREAK_label: (void)0;
+{
+((void(*)(val* self))((((long)var_25&3)?class_info[((long)var_25&3)]:var_25->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_25); /* finish on <var_25:IndexedIterator[Option]>*/
 }
-/* method opts#OptionParameter#init_opt for (self: OptionParameter, String, nullable Object, nullable Array[String]) */
-void opts__OptionParameter__init_opt(val* self, val* p0, val* p1, val* p2) {
-short int var /* : Bool */;
-int cltype;
-int idtype;
-const struct type* type_struct;
-val* var_h /* var h: String */;
-val* var_d /* var d: nullable Object */;
-val* var_n /* var n: nullable Array[String] */;
-short int var1 /* : Bool */;
-/* Covariant cast for argument 1 (d) <p1:nullable Object> isa nullable VALUE */
-/* <p1:nullable Object> isa nullable VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+} else {
+}
+if (var_ok){
+{
+var33 = ((val*(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_it); /* item on <var_it:Iterator[String]>*/
+}
+{
+var34 = ((val*(*)(val* self, val* p0))(self->class->vft[COLOR_opts__OptionParameter__convert]))(self, var33); /* convert on <self:OptionParameter>*/
+}
+{
+{ /* Inline opts#Option#value= (self,var34) on <self:OptionParameter> */
+/* Covariant cast for argument 0 (value) <var34:nullable Object> isa VALUE */
+/* <var34:nullable Object> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
-if(p1 == NULL) {
-var = 1;
+is_nullable = type_struct->is_nullable;
+if(var34 == NULL) {
+var36 = is_nullable;
 } else {
-if(cltype >= p1->type->table_size) {
-var = 0;
+if(cltype >= (((long)var34&3)?type_info[((long)var34&3)]:var34->type)->table_size) {
+var36 = 0;
 } else {
-var = p1->type->type_table[cltype] == idtype;
+var36 = (((long)var34&3)?type_info[((long)var34&3)]:var34->type)->type_table[cltype] == idtype;
 }
 }
-if (!var) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 151);
-exit(1);
+if (unlikely(!var36)) {
+var_class_name = var34 == NULL ? "null" : (((long)var34&3)?type_info[((long)var34&3)]:var34->type)->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 40);
+fatal_exit(1);
+}
+self->attrs[COLOR_opts__Option___value].val = var34; /* _value on <self:OptionParameter> */
+RET_LABEL35:(void)0;
+}
+}
+{
+((void(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_it); /* next on <var_it:Iterator[String]>*/
+}
+} else {
+{
+{ /* Inline opts#Option#errors (self) on <self:OptionParameter> */
+var39 = self->attrs[COLOR_opts__Option___errors].val; /* _errors on <self:OptionParameter> */
+if (unlikely(var39 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _errors");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 28);
+fatal_exit(1);
+}
+var37 = var39;
+RET_LABEL38:(void)0;
+}
+}
+if (unlikely(varonce==NULL)) {
+var40 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
+if (likely(varonce41!=NULL)) {
+var42 = varonce41;
+} else {
+var43 = "Parameter expected for option ";
+var44 = core__flat___NativeString___to_s_full(var43, 30l, 30l);
+var42 = var44;
+varonce41 = var42;
+}
+((struct instance_core__NativeArray*)var40)->values[0]=var42;
+if (likely(varonce45!=NULL)) {
+var46 = varonce45;
+} else {
+var47 = ".";
+var48 = core__flat___NativeString___to_s_full(var47, 1l, 1l);
+var46 = var48;
+varonce45 = var46;
+}
+((struct instance_core__NativeArray*)var40)->values[2]=var46;
+} else {
+var40 = varonce;
+varonce = NULL;
+}
+{
+{ /* Inline opts#Option#names (self) on <self:OptionParameter> */
+var51 = self->attrs[COLOR_opts__Option___names].val; /* _names on <self:OptionParameter> */
+if (unlikely(var51 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
+}
+var49 = var51;
+RET_LABEL50:(void)0;
+}
+}
+{
+var52 = core___core__SequenceRead___Collection__first(var49);
+}
+((struct instance_core__NativeArray*)var40)->values[1]=var52;
+{
+var53 = ((val*(*)(val* self))(var40->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var40); /* native_to_s on <var40:NativeArray[String]>*/
+}
+varonce = var40;
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add(var37, var53); /* Direct call array#Array#add on <var37:Array[String]>*/
 }
-var_h = p0;
-var_d = p1;
-var_n = p2;
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__Option__init_opt]))(self, p0, p1, p2) /* init_opt on <self:OptionParameter>*/;
-var1 = 1;
-self->attrs[COLOR_opts__OptionParameter___parameter_mandatory].s = var1; /* _parameter_mandatory on <self:OptionParameter> */
-RET_LABEL:;
 }
-/* method opts#OptionParameter#init_opt for (self: Object, String, nullable Object, nullable Array[String]) */
-void VIRTUAL_opts__OptionParameter__init_opt(val* self, val* p0, val* p1, val* p2) {
-opts__OptionParameter__init_opt(self, p0, p1, p2);
 RET_LABEL:;
 }
 /* method opts#OptionString#init for (self: OptionString, String, Array[String]) */
-void opts__OptionString__init(val* self, val* p0, val* p1) {
+void opts___opts__OptionString___init(val* self, val* p0, val* p1) {
 val* var_help /* var help: String */;
 val* var_names /* var names: Array[String] */;
-val* var /* : null */;
+short int var /* : Bool */;
+int cltype;
+int idtype;
+const struct type* type_struct;
+short int is_nullable;
+const char* var_class_name;
 var_help = p0;
 var_names = p1;
-var = NULL;
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__OptionParameter__init_opt]))(self, var_help, var, var_names) /* init_opt on <self:OptionString>*/;
-RET_LABEL:;
+/* <((val*)NULL):null> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
+cltype = type_struct->color;
+idtype = type_struct->id;
+is_nullable = type_struct->is_nullable;
+if(((val*)NULL) == NULL) {
+var = is_nullable;
+} else {
+if(cltype >= ((val*)NULL)->type->table_size) {
+var = 0;
+} else {
+var = ((val*)NULL)->type->type_table[cltype] == idtype;
+}
+}
+if (unlikely(!var)) {
+var_class_name = ((val*)NULL) == NULL ? "null" : ((val*)NULL)->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 184);
+fatal_exit(1);
+}
+{
+opts___opts__Option___init(self, var_help, ((val*)NULL), var_names); /* Direct call opts#Option#init on <self:OptionString>*/
 }
-/* method opts#OptionString#init for (self: Object, String, Array[String]) */
-void VIRTUAL_opts__OptionString__init(val* self, val* p0, val* p1) {
-opts__OptionString__init(self, p0, p1);
 RET_LABEL:;
 }
 /* method opts#OptionString#convert for (self: OptionString, String): nullable String */
-val* opts__OptionString__convert(val* self, val* p0) {
+val* opts___opts__OptionString___OptionParameter__convert(val* self, val* p0) {
 val* var /* : nullable String */;
 val* var_str /* var str: String */;
 short int var1 /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
+const char* var_class_name;
 var_str = p0;
 /* <var_str:String> isa VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
 if(cltype >= var_str->type->table_size) {
@@ -952,457 +1043,19 @@ var1 = 0;
 } else {
 var1 = var_str->type->type_table[cltype] == idtype;
 }
-if (!var1) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 164);
-exit(1);
+if (unlikely(!var1)) {
+var_class_name = var_str == NULL ? "null" : var_str->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 186);
+fatal_exit(1);
 }
 var = var_str;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionString#convert for (self: Object, String): nullable Object */
-val* VIRTUAL_opts__OptionString__convert(val* self, val* p0) {
-val* var /* : nullable Object */;
-val* var1 /* : nullable String */;
-var1 = opts__OptionString__convert(self, p0);
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionEnum#init for (self: OptionEnum, Array[String], String, Int, Array[String]) */
-void opts__OptionEnum__init(val* self, val* p0, val* p1, long p2, val* p3) {
-val* var_values /* var values: Array[String] */;
-val* var_help /* var help: String */;
-long var_default /* var default: Int */;
-val* var_names /* var names: Array[String] */;
-long var /* : Int */;
-long var1 /* : Int */;
-short int var2 /* : Bool */;
-short int var4 /* : Bool */;
-int cltype;
-int idtype;
-short int var5 /* : Bool */;
-val* var6 /* : Array[nullable Object] */;
-static val* varonce;
-val* var7 /* : String */;
-char* var8 /* : NativeString */;
-long var9 /* : Int */;
-val* var10 /* : String */;
-static val* varonce11;
-val* var12 /* : String */;
-char* var13 /* : NativeString */;
-long var14 /* : Int */;
-val* var15 /* : String */;
-val* var16 /* : String */;
-static val* varonce17;
-val* var18 /* : String */;
-char* var19 /* : NativeString */;
-long var20 /* : Int */;
-val* var21 /* : String */;
-val* var22 /* : Array[Object] */;
-long var23 /* : Int */;
-val* var24 /* : NativeArray[Object] */;
-val* var25 /* : String */;
-val* var26 /* : nullable Object */;
-var_values = p0;
-var_help = p1;
-var_default = p2;
-var_names = p3;
-var = ((long (*)(val*))(var_values->class->vft[COLOR_abstract_collection__Collection__length]))(var_values) /* length on <var_values:Array[String]>*/;
-var1 = 0;
-{ /* Inline kernel#Int#> (var,var1) */
-/* Covariant cast for argument 0 (i) <var1:Int> isa OTHER */
-/* <var1:Int> isa OTHER */
-var4 = 1; /* easy <var1:Int> isa OTHER*/
-if (!var4) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/standard/kernel.nit", 259);
-exit(1);
-}
-var5 = var > var1;
-var2 = var5;
-goto RET_LABEL3;
-RET_LABEL3:(void)0;
-}
-if (!var2) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "lib/opts.nit", 174);
-exit(1);
-}
-var6 = ((val* (*)(val*))(var_values->class->vft[COLOR_array__Collection__to_a]))(var_values) /* to_a on <var_values:Array[String]>*/;
-self->attrs[COLOR_opts__OptionEnum___values].val = var6; /* _values on <self:OptionEnum> */
-if (varonce) {
-var7 = varonce;
-} else {
-var8 = " <";
-var9 = 2;
-var10 = string__NativeString__to_s_with_length(var8, var9);
-var7 = var10;
-varonce = var7;
-}
-if (varonce11) {
-var12 = varonce11;
-} else {
-var13 = ", ";
-var14 = 2;
-var15 = string__NativeString__to_s_with_length(var13, var14);
-var12 = var15;
-varonce11 = var12;
-}
-var16 = ((val* (*)(val*, val*))(var_values->class->vft[COLOR_string__Collection__join]))(var_values, var12) /* join on <var_values:Array[String]>*/;
-if (varonce17) {
-var18 = varonce17;
-} else {
-var19 = ">";
-var20 = 1;
-var21 = string__NativeString__to_s_with_length(var19, var20);
-var18 = var21;
-varonce17 = var18;
-}
-var22 = NEW_array__Array(&type_array__Arraykernel__Object);
-{ /* var22 = array_instance Array[Object] */
-var23 = 4;
-var24 = NEW_array__NativeArray(var23, &type_array__NativeArraykernel__Object);
-((struct instance_array__NativeArray*)var24)->values[0] = (val*) var_help;
-((struct instance_array__NativeArray*)var24)->values[1] = (val*) var7;
-((struct instance_array__NativeArray*)var24)->values[2] = (val*) var16;
-((struct instance_array__NativeArray*)var24)->values[3] = (val*) var18;
-((void (*)(val*, val*, long))(var22->class->vft[COLOR_array__Array__with_native]))(var22, var24, var23) /* with_native on <var22:Array[Object]>*/;
-CHECK_NEW_array__Array(var22);
-}
-var25 = ((val* (*)(val*))(var22->class->vft[COLOR_string__Object__to_s]))(var22) /* to_s on <var22:Array[Object]>*/;
-var26 = BOX_kernel__Int(var_default); /* autobox from Int to nullable Object */
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__OptionParameter__init_opt]))(self, var25, var26, var_names) /* init_opt on <self:OptionEnum>*/;
-RET_LABEL:;
-}
-/* method opts#OptionEnum#init for (self: Object, Array[String], String, Int, Array[String]) */
-void VIRTUAL_opts__OptionEnum__init(val* self, val* p0, val* p1, long p2, val* p3) {
-opts__OptionEnum__init(self, p0, p1, p2, p3);
-RET_LABEL:;
-}
-/* method opts#OptionEnum#convert for (self: OptionEnum, String): Int */
-long opts__OptionEnum__convert(val* self, val* p0) {
-long var /* : Int */;
-val* var_str /* var str: String */;
-val* var1 /* : Array[String] */;
-long var2 /* : Int */;
-long var_id /* var id: Int */;
-long var3 /* : Int */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : Array[Object] */;
-long var11 /* : Int */;
-val* var_ /* var : Array[Object] */;
-static val* varonce;
-val* var12 /* : String */;
-char* var13 /* : NativeString */;
-long var14 /* : Int */;
-val* var15 /* : String */;
-val* var16 /* : Array[String] */;
-static val* varonce17;
-val* var18 /* : String */;
-char* var19 /* : NativeString */;
-long var20 /* : Int */;
-val* var21 /* : String */;
-val* var22 /* : String */;
-static val* varonce23;
-val* var24 /* : String */;
-char* var25 /* : NativeString */;
-long var26 /* : Int */;
-val* var27 /* : String */;
-val* var28 /* : String */;
-val* var_e /* var e: String */;
-val* var29 /* : Array[Object] */;
-long var30 /* : Int */;
-val* var_31 /* var : Array[Object] */;
-static val* varonce32;
-val* var33 /* : String */;
-char* var34 /* : NativeString */;
-long var35 /* : Int */;
-val* var36 /* : String */;
-val* var37 /* : Array[String] */;
-static val* varonce38;
-val* var39 /* : String */;
-char* var40 /* : NativeString */;
-long var41 /* : Int */;
-val* var42 /* : String */;
-val* var43 /* : String */;
-static val* varonce44;
-val* var45 /* : String */;
-char* var46 /* : NativeString */;
-long var47 /* : Int */;
-val* var48 /* : String */;
-val* var49 /* : String */;
-val* var50 /* : String */;
-val* var51 /* : Array[String] */;
-var_str = p0;
-var1 = self->attrs[COLOR_opts__OptionEnum___values].val; /* _values on <self:OptionEnum> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 181);
-exit(1);
-}
-var2 = ((long (*)(val*, val*))(var1->class->vft[COLOR_abstract_collection__SequenceRead__index_of]))(var1, var_str) /* index_of on <var1:Array[String]>*/;
-var_id = var2;
-var3 = 1;
-{ /* Inline kernel#Int#unary - (var3) */
-var6 = -var3;
-var4 = var6;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
-}
-{ /* Inline kernel#Int#== (var_id,var4) */
-var9 = var_id == var4;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-if (var7){
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-var11 = 3;
-((void (*)(val*, long))(var10->class->vft[COLOR_array__Array__with_capacity]))(var10, var11) /* with_capacity on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_ = var10;
-if (varonce) {
-var12 = varonce;
-} else {
-var13 = "Unrecognized value for option ";
-var14 = 30;
-var15 = string__NativeString__to_s_with_length(var13, var14);
-var12 = var15;
-varonce = var12;
-}
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var12) /* add on <var_:Array[Object]>*/;
-var16 = self->attrs[COLOR_opts__Option___names].val; /* _names on <self:OptionEnum> */
-if (var16 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _names", "lib/opts.nit", 183);
-exit(1);
-}
-if (varonce17) {
-var18 = varonce17;
-} else {
-var19 = ", ";
-var20 = 2;
-var21 = string__NativeString__to_s_with_length(var19, var20);
-var18 = var21;
-varonce17 = var18;
-}
-var22 = ((val* (*)(val*, val*))(var16->class->vft[COLOR_string__Collection__join]))(var16, var18) /* join on <var16:Array[String]>*/;
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var22) /* add on <var_:Array[Object]>*/;
-if (varonce23) {
-var24 = varonce23;
-} else {
-var25 = ".\n";
-var26 = 2;
-var27 = string__NativeString__to_s_with_length(var25, var26);
-var24 = var27;
-varonce23 = var24;
-}
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var24) /* add on <var_:Array[Object]>*/;
-var28 = ((val* (*)(val*))(var_->class->vft[COLOR_string__Object__to_s]))(var_) /* to_s on <var_:Array[Object]>*/;
-var_e = var28;
-var29 = NEW_array__Array(&type_array__Arraykernel__Object);
-var30 = 3;
-((void (*)(val*, long))(var29->class->vft[COLOR_array__Array__with_capacity]))(var29, var30) /* with_capacity on <var29:Array[Object]>*/;
-CHECK_NEW_array__Array(var29);
-var_31 = var29;
-if (varonce32) {
-var33 = varonce32;
-} else {
-var34 = "Expected values are: ";
-var35 = 21;
-var36 = string__NativeString__to_s_with_length(var34, var35);
-var33 = var36;
-varonce32 = var33;
-}
-((void (*)(val*, val*))(var_31->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_31, var33) /* add on <var_31:Array[Object]>*/;
-var37 = self->attrs[COLOR_opts__OptionEnum___values].val; /* _values on <self:OptionEnum> */
-if (var37 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 184);
-exit(1);
-}
-if (varonce38) {
-var39 = varonce38;
-} else {
-var40 = ", ";
-var41 = 2;
-var42 = string__NativeString__to_s_with_length(var40, var41);
-var39 = var42;
-varonce38 = var39;
-}
-var43 = ((val* (*)(val*, val*))(var37->class->vft[COLOR_string__Collection__join]))(var37, var39) /* join on <var37:Array[String]>*/;
-((void (*)(val*, val*))(var_31->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_31, var43) /* add on <var_31:Array[Object]>*/;
-if (varonce44) {
-var45 = varonce44;
-} else {
-var46 = ".";
-var47 = 1;
-var48 = string__NativeString__to_s_with_length(var46, var47);
-var45 = var48;
-varonce44 = var45;
-}
-((void (*)(val*, val*))(var_31->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_31, var45) /* add on <var_31:Array[Object]>*/;
-var49 = ((val* (*)(val*))(var_31->class->vft[COLOR_string__Object__to_s]))(var_31) /* to_s on <var_31:Array[Object]>*/;
-var50 = ((val* (*)(val*, val*))(var_e->class->vft[COLOR_string__String___43d]))(var_e, var49) /* + on <var_e:String>*/;
-var_e = var50;
-var51 = self->attrs[COLOR_opts__Option___errors].val; /* _errors on <self:OptionEnum> */
-if (var51 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _errors", "lib/opts.nit", 185);
-exit(1);
-}
-((void (*)(val*, val*))(var51->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var51, var_e) /* add on <var51:Array[String]>*/;
-} else {
-}
-var = var_id;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionEnum#convert for (self: Object, String): nullable Object */
-val* VIRTUAL_opts__OptionEnum__convert(val* self, val* p0) {
-val* var /* : nullable Object */;
-long var1 /* : Int */;
-val* var2 /* : nullable Object */;
-var1 = opts__OptionEnum__convert(self, p0);
-var2 = BOX_kernel__Int(var1); /* autobox from Int to nullable Object */
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionEnum#value_name for (self: OptionEnum): String */
-val* opts__OptionEnum__value_name(val* self) {
-val* var /* : String */;
-val* var1 /* : Array[String] */;
-val* var2 /* : nullable Object */;
-val* var3 /* : nullable Object */;
-long var4 /* : Int */;
-var1 = self->attrs[COLOR_opts__OptionEnum___values].val; /* _values on <self:OptionEnum> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 190);
-exit(1);
-}
-var2 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__value]))(self) /* value on <self:OptionEnum>*/;
-var4 = ((struct instance_kernel__Int*)var2)->value; /* autounbox from nullable Object to Int */;
-var3 = ((val* (*)(val*, long))(var1->class->vft[COLOR_abstract_collection__SequenceRead___91d_93d]))(var1, var4) /* [] on <var1:Array[String]>*/;
-var = var3;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionEnum#value_name for (self: Object): String */
-val* VIRTUAL_opts__OptionEnum__value_name(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__OptionEnum__value_name(self);
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionEnum#pretty_default for (self: OptionEnum): String */
-val* opts__OptionEnum__pretty_default(val* self) {
-val* var /* : String */;
-val* var1 /* : nullable Object */;
-val* var2 /* : null */;
-short int var3 /* : Bool */;
-val* var4 /* : Array[Object] */;
-long var5 /* : Int */;
-val* var_ /* var : Array[Object] */;
-static val* varonce;
-val* var6 /* : String */;
-char* var7 /* : NativeString */;
-long var8 /* : Int */;
-val* var9 /* : String */;
-val* var10 /* : Array[String] */;
-val* var11 /* : nullable Object */;
-val* var12 /* : nullable Object */;
-long var13 /* : Int */;
-static val* varonce14;
-val* var15 /* : String */;
-char* var16 /* : NativeString */;
-long var17 /* : Int */;
-val* var18 /* : String */;
-val* var19 /* : String */;
-static val* varonce20;
-val* var21 /* : String */;
-char* var22 /* : NativeString */;
-long var23 /* : Int */;
-val* var24 /* : String */;
-var1 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__default_value]))(self) /* default_value on <self:OptionEnum>*/;
-var2 = NULL;
-if (var1 == NULL) {
-var3 = 0; /* is null */
-} else {
-var3 = 1; /* arg is null and recv is not */
-}
-if (var3){
-var4 = NEW_array__Array(&type_array__Arraykernel__Object);
-var5 = 3;
-((void (*)(val*, long))(var4->class->vft[COLOR_array__Array__with_capacity]))(var4, var5) /* with_capacity on <var4:Array[Object]>*/;
-CHECK_NEW_array__Array(var4);
-var_ = var4;
-if (varonce) {
-var6 = varonce;
-} else {
-var7 = " (";
-var8 = 2;
-var9 = string__NativeString__to_s_with_length(var7, var8);
-var6 = var9;
-varonce = var6;
-}
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var6) /* add on <var_:Array[Object]>*/;
-var10 = self->attrs[COLOR_opts__OptionEnum___values].val; /* _values on <self:OptionEnum> */
-if (var10 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 195);
-exit(1);
-}
-var11 = ((val* (*)(val*))(self->class->vft[COLOR_opts__Option__default_value]))(self) /* default_value on <self:OptionEnum>*/;
-if (var11 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 195);
-exit(1);
-}
-var13 = ((struct instance_kernel__Int*)var11)->value; /* autounbox from nullable Int to Int */;
-var12 = ((val* (*)(val*, long))(var10->class->vft[COLOR_abstract_collection__SequenceRead___91d_93d]))(var10, var13) /* [] on <var10:Array[String]>*/;
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var12) /* add on <var_:Array[Object]>*/;
-if (varonce14) {
-var15 = varonce14;
-} else {
-var16 = ")";
-var17 = 1;
-var18 = string__NativeString__to_s_with_length(var16, var17);
-var15 = var18;
-varonce14 = var15;
-}
-((void (*)(val*, val*))(var_->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_, var15) /* add on <var_:Array[Object]>*/;
-var19 = ((val* (*)(val*))(var_->class->vft[COLOR_string__Object__to_s]))(var_) /* to_s on <var_:Array[Object]>*/;
-var = var19;
-goto RET_LABEL;
-} else {
-if (varonce20) {
-var21 = varonce20;
-} else {
-var22 = "";
-var23 = 0;
-var24 = string__NativeString__to_s_with_length(var22, var23);
-var21 = var24;
-varonce20 = var21;
-}
-var = var21;
-goto RET_LABEL;
-}
-RET_LABEL:;
-return var;
-}
-/* method opts#OptionEnum#pretty_default for (self: Object): String */
-val* VIRTUAL_opts__OptionEnum__pretty_default(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = opts__OptionEnum__pretty_default(self);
-var = var1;
-RET_LABEL:;
-return var;
-}
 /* method opts#OptionInt#init for (self: OptionInt, String, Int, Array[String]) */
-void opts__OptionInt__init(val* self, val* p0, long p1, val* p2) {
+void opts___opts__OptionInt___init(val* self, val* p0, long p1, val* p2) {
 val* var_help /* var help: String */;
 long var_default /* var default: Int */;
 val* var_names /* var names: Array[String] */;
@@ -1410,548 +1063,830 @@ val* var /* : nullable Object */;
 var_help = p0;
 var_default = p1;
 var_names = p2;
-var = BOX_kernel__Int(var_default); /* autobox from Int to nullable Object */
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__OptionParameter__init_opt]))(self, var_help, var, var_names) /* init_opt on <self:OptionInt>*/;
-RET_LABEL:;
+{
+var = (val*)(var_default<<2|1);
+opts___opts__Option___init(self, var_help, var, var_names); /* Direct call opts#Option#init on <self:OptionInt>*/
 }
-/* method opts#OptionInt#init for (self: Object, String, Int, Array[String]) */
-void VIRTUAL_opts__OptionInt__init(val* self, val* p0, long p1, val* p2) {
-opts__OptionInt__init(self, p0, p1, p2);
 RET_LABEL:;
 }
 /* method opts#OptionInt#convert for (self: OptionInt, String): Int */
-long opts__OptionInt__convert(val* self, val* p0) {
+long opts___opts__OptionInt___OptionParameter__convert(val* self, val* p0) {
 long var /* : Int */;
 val* var_str /* var str: String */;
 long var1 /* : Int */;
 var_str = p0;
-var1 = ((long (*)(val*))(var_str->class->vft[COLOR_string__AbstractString__to_i]))(var_str) /* to_i on <var_str:String>*/;
+{
+var1 = core__fixed_ints___Text___to_i(var_str);
+}
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionInt#convert for (self: Object, String): nullable Object */
-val* VIRTUAL_opts__OptionInt__convert(val* self, val* p0) {
+/* method opts#OptionInt#convert for (self: OptionParameter, String): nullable Object */
+val* VIRTUAL_opts___opts__OptionInt___OptionParameter__convert(val* self, val* p0) {
 val* var /* : nullable Object */;
 long var1 /* : Int */;
 val* var2 /* : nullable Object */;
-var1 = opts__OptionInt__convert(self, p0);
-var2 = BOX_kernel__Int(var1); /* autobox from Int to nullable Object */
+var1 = opts___opts__OptionInt___OptionParameter__convert(self, p0);
+var2 = (val*)(var1<<2|1);
 var = var2;
 RET_LABEL:;
 return var;
 }
 /* method opts#OptionArray#init for (self: OptionArray, String, Array[String]) */
-void opts__OptionArray__init(val* self, val* p0, val* p1) {
+void opts___opts__OptionArray___init(val* self, val* p0, val* p1) {
 val* var_help /* var help: String */;
 val* var_names /* var names: Array[String] */;
 val* var /* : Array[String] */;
-val* var1 /* : Array[String] */;
-short int var2 /* : Bool */;
+val* var2 /* : Array[String] */;
+val* var4 /* : Array[String] */;
+short int var5 /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
+const char* var_class_name;
 var_help = p0;
 var_names = p1;
-var = NEW_array__Array(&type_array__Arraystring__String);
-((void (*)(val*))(var->class->vft[COLOR_array__Array__init]))(var) /* init on <var:Array[String]>*/;
-CHECK_NEW_array__Array(var);
+var = NEW_core__Array(&type_core__Array__core__String);
+{
+core___core__Array___core__kernel__Object__init(var); /* Direct call array#Array#init on <var:Array[String]>*/
+}
+{
+{ /* Inline opts#OptionArray#values= (self,var) on <self:OptionArray> */
 self->attrs[COLOR_opts__OptionArray___values].val = var; /* _values on <self:OptionArray> */
-var1 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 218);
-exit(1);
+RET_LABEL1:(void)0;
 }
-/* <var1:Array[String]> isa nullable VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+}
+{
+{ /* Inline opts#OptionArray#values (self) on <self:OptionArray> */
+var4 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
+if (unlikely(var4 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _values");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 267);
+fatal_exit(1);
+}
+var2 = var4;
+RET_LABEL3:(void)0;
+}
+}
+/* <var2:Array[String]> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
-if(cltype >= var1->type->table_size) {
-var2 = 0;
+if(cltype >= var2->type->table_size) {
+var5 = 0;
 } else {
-var2 = var1->type->type_table[cltype] == idtype;
+var5 = var2->type->type_table[cltype] == idtype;
+}
+if (unlikely(!var5)) {
+var_class_name = var2 == NULL ? "null" : var2->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 264);
+fatal_exit(1);
+}
+{
+opts___opts__Option___init(self, var_help, var2, var_names); /* Direct call opts#Option#init on <self:OptionArray>*/
+}
+RET_LABEL:;
 }
-if (!var2) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 218);
-exit(1);
+/* method opts#OptionArray#values for (self: OptionArray): Array[String] */
+val* opts___opts__OptionArray___values(val* self) {
+val* var /* : Array[String] */;
+val* var1 /* : Array[String] */;
+var1 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _values");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 267);
+fatal_exit(1);
 }
-((void (*)(val*, val*, val*, val*))(self->class->vft[COLOR_opts__OptionParameter__init_opt]))(self, var_help, var1, var_names) /* init_opt on <self:OptionArray>*/;
+var = var1;
 RET_LABEL:;
+return var;
 }
-/* method opts#OptionArray#init for (self: Object, String, Array[String]) */
-void VIRTUAL_opts__OptionArray__init(val* self, val* p0, val* p1) {
-opts__OptionArray__init(self, p0, p1);
+/* method opts#OptionArray#values= for (self: OptionArray, Array[String]) */
+void opts___opts__OptionArray___values_61d(val* self, val* p0) {
+self->attrs[COLOR_opts__OptionArray___values].val = p0; /* _values on <self:OptionArray> */
 RET_LABEL:;
 }
 /* method opts#OptionArray#convert for (self: OptionArray, String): Array[String] */
-val* opts__OptionArray__convert(val* self, val* p0) {
+val* opts___opts__OptionArray___OptionParameter__convert(val* self, val* p0) {
 val* var /* : Array[String] */;
 val* var_str /* var str: String */;
 val* var1 /* : Array[String] */;
-val* var2 /* : Array[String] */;
-short int var3 /* : Bool */;
+val* var3 /* : Array[String] */;
+val* var4 /* : Array[String] */;
+val* var6 /* : Array[String] */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 const struct type* type_struct;
+const char* var_class_name;
 var_str = p0;
-var1 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 224);
-exit(1);
+{
+{ /* Inline opts#OptionArray#values (self) on <self:OptionArray> */
+var3 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
+if (unlikely(var3 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _values");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 267);
+fatal_exit(1);
 }
-((void (*)(val*, val*))(var1->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var1, var_str) /* add on <var1:Array[String]>*/;
-var2 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
-if (var2 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _values", "lib/opts.nit", 225);
-exit(1);
+var1 = var3;
+RET_LABEL2:(void)0;
 }
-/* <var2:Array[String]> isa VALUE */
-type_struct = self->type->resolution_table->types[COLOR_opts__Option_VTVALUE];
+}
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add(var1, var_str); /* Direct call array#Array#add on <var1:Array[String]>*/
+}
+{
+{ /* Inline opts#OptionArray#values (self) on <self:OptionArray> */
+var6 = self->attrs[COLOR_opts__OptionArray___values].val; /* _values on <self:OptionArray> */
+if (unlikely(var6 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _values");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 267);
+fatal_exit(1);
+}
+var4 = var6;
+RET_LABEL5:(void)0;
+}
+}
+/* <var4:Array[String]> isa VALUE */
+type_struct = self->type->resolution_table->types[COLOR_opts__Option__VALUE];
 cltype = type_struct->color;
 idtype = type_struct->id;
-if(cltype >= var2->type->table_size) {
-var3 = 0;
+if(cltype >= var4->type->table_size) {
+var7 = 0;
 } else {
-var3 = var2->type->type_table[cltype] == idtype;
+var7 = var4->type->type_table[cltype] == idtype;
 }
-if (!var3) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/opts.nit", 225);
-exit(1);
+if (unlikely(!var7)) {
+var_class_name = var4 == NULL ? "null" : var4->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "VALUE", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 271);
+fatal_exit(1);
 }
-var = var2;
+var = var4;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionArray#convert for (self: Object, String): nullable Object */
-val* VIRTUAL_opts__OptionArray__convert(val* self, val* p0) {
-val* var /* : nullable Object */;
-val* var1 /* : Array[String] */;
-var1 = opts__OptionArray__convert(self, p0);
-var = var1;
-RET_LABEL:;
-return var;
-}
 /* method opts#OptionContext#options for (self: OptionContext): Array[Option] */
-val* opts__OptionContext__options(val* self) {
+val* opts___opts__OptionContext___options(val* self) {
 val* var /* : Array[Option] */;
 val* var1 /* : Array[Option] */;
 var1 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 230);
-exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
 }
-/* method opts#OptionContext#options for (self: Object): Array[Option] */
-val* VIRTUAL_opts__OptionContext__options(val* self) {
-val* var /* : Array[Option] */;
-val* var1 /* : Array[Option] */;
-var1 = opts__OptionContext__options(self);
 var = var1;
 RET_LABEL:;
 return var;
 }
 /* method opts#OptionContext#rest for (self: OptionContext): Array[String] */
-val* opts__OptionContext__rest(val* self) {
+val* opts___opts__OptionContext___rest(val* self) {
 val* var /* : Array[String] */;
 val* var1 /* : Array[String] */;
 var1 = self->attrs[COLOR_opts__OptionContext___rest].val; /* _rest on <self:OptionContext> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _rest", "lib/opts.nit", 231);
-exit(1);
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _rest");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 280);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionContext#rest for (self: Object): Array[String] */
-val* VIRTUAL_opts__OptionContext__rest(val* self) {
+/* method opts#OptionContext#context_errors for (self: OptionContext): Array[String] */
+val* opts___opts__OptionContext___context_errors(val* self) {
 val* var /* : Array[String] */;
 val* var1 /* : Array[String] */;
-var1 = opts__OptionContext__rest(self);
+var1 = self->attrs[COLOR_opts__OptionContext___context_errors].val; /* _context_errors on <self:OptionContext> */
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _context_errors");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 283);
+fatal_exit(1);
+}
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionContext#errors for (self: OptionContext): Array[String] */
-val* opts__OptionContext__errors(val* self) {
-val* var /* : Array[String] */;
-val* var1 /* : Array[String] */;
-var1 = self->attrs[COLOR_opts__OptionContext___errors].val; /* _errors on <self:OptionContext> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _errors", "lib/opts.nit", 232);
-exit(1);
+/* method opts#OptionContext#optmap for (self: OptionContext): HashMap[String, Option] */
+val* opts___opts__OptionContext___optmap(val* self) {
+val* var /* : HashMap[String, Option] */;
+val* var1 /* : HashMap[String, Option] */;
+var1 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
+if (unlikely(var1 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _optmap");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 286);
+fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionContext#errors for (self: Object): Array[String] */
-val* VIRTUAL_opts__OptionContext__errors(val* self) {
-val* var /* : Array[String] */;
-val* var1 /* : Array[String] */;
-var1 = opts__OptionContext__errors(self);
-var = var1;
+/* method opts#OptionContext#add_option for (self: OptionContext, Array[Option]) */
+void opts___opts__OptionContext___add_option(val* self, val* p0) {
+val* var_opts /* var opts: Array[Option] */;
+val* var /* : Array[Option] */;
+val* var2 /* : Array[Option] */;
+var_opts = p0;
+{
+{ /* Inline opts#OptionContext#options (self) on <self:OptionContext> */
+var2 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
+if (unlikely(var2 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var = var2;
+RET_LABEL1:(void)0;
+}
+}
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add_all(var, var_opts); /* Direct call array#Array#add_all on <var:Array[Option]>*/
+}
 RET_LABEL:;
-return var;
 }
 /* method opts#OptionContext#usage for (self: OptionContext) */
-void opts__OptionContext__usage(val* self) {
-long var /* : Int */;
+void opts___opts__OptionContext___usage(val* self) {
 long var_lmax /* var lmax: Int */;
-val* var1 /* : Array[Option] */;
-val* var2 /* : Iterator[nullable Object] */;
-short int var3 /* : Bool */;
-val* var4 /* : nullable Object */;
+val* var /* : Array[Option] */;
+val* var2 /* : Array[Option] */;
+val* var_ /* var : Array[Option] */;
+val* var3 /* : IndexedIterator[nullable Object] */;
+val* var_4 /* var : IndexedIterator[Option] */;
+short int var5 /* : Bool */;
+val* var6 /* : nullable Object */;
 val* var_i /* var i: Option */;
-long var5 /* : Int */;
 long var_l /* var l: Int */;
-val* var6 /* : Array[String] */;
-val* var7 /* : Iterator[nullable Object] */;
-short int var8 /* : Bool */;
-val* var9 /* : nullable Object */;
+val* var7 /* : Array[String] */;
+val* var9 /* : Array[String] */;
+val* var_10 /* var : Array[String] */;
+val* var11 /* : IndexedIterator[nullable Object] */;
+val* var_12 /* var : IndexedIterator[String] */;
+short int var13 /* : Bool */;
+val* var15 /* : nullable Object */;
 val* var_n /* var n: String */;
-long var10 /* : Int */;
-long var11 /* : Int */;
-long var12 /* : Int */;
-long var14 /* : Int */;
-long var15 /* : Int */;
+long var16 /* : Int */;
 long var17 /* : Int */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
+short int var19 /* : Bool */;
 int cltype;
 int idtype;
-short int var21 /* : Bool */;
-val* var23 /* : Array[Option] */;
-val* var24 /* : Iterator[nullable Object] */;
-short int var25 /* : Bool */;
-val* var26 /* : nullable Object */;
-val* var_i27 /* var i: Option */;
-val* var28 /* : String */;
-var = 1;
-var_lmax = var;
-var1 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 239);
-exit(1);
+const char* var_class_name;
+long var20 /* : Int */;
+long var21 /* : Int */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+long var27 /* : Int */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+const char* var_class_name33;
+short int var34 /* : Bool */;
+val* var35 /* : Array[Option] */;
+val* var37 /* : Array[Option] */;
+val* var_38 /* var : Array[Option] */;
+val* var39 /* : IndexedIterator[nullable Object] */;
+val* var_40 /* var : IndexedIterator[Option] */;
+short int var41 /* : Bool */;
+val* var43 /* : nullable Object */;
+val* var_i44 /* var i: Option */;
+short int var45 /* : Bool */;
+short int var47 /* : Bool */;
+short int var48 /* : Bool */;
+val* var49 /* : Sys */;
+val* var50 /* : String */;
+var_lmax = 1l;
+{
+{ /* Inline opts#OptionContext#options (self) on <self:OptionContext> */
+var2 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
+if (unlikely(var2 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var = var2;
+RET_LABEL1:(void)0;
+}
+}
+var_ = var;
+{
+var3 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_);
+}
+var_4 = var3;
+for(;;) {
+{
+var5 = ((short int(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_4); /* is_ok on <var_4:IndexedIterator[Option]>*/
+}
+if (var5){
+} else {
+goto BREAK_label;
+}
+{
+var6 = ((val*(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_4); /* item on <var_4:IndexedIterator[Option]>*/
+}
+var_i = var6;
+var_l = 3l;
+{
+{ /* Inline opts#Option#names (var_i) on <var_i:Option> */
+var9 = var_i->attrs[COLOR_opts__Option___names].val; /* _names on <var_i:Option> */
+if (unlikely(var9 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
+}
+var7 = var9;
+RET_LABEL8:(void)0;
+}
+}
+var_10 = var7;
+{
+var11 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_10);
+}
+var_12 = var11;
+for(;;) {
+{
+var13 = ((short int(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_12); /* is_ok on <var_12:IndexedIterator[String]>*/
+}
+if (var13){
+} else {
+goto BREAK_label14;
+}
+{
+var15 = ((val*(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_12); /* item on <var_12:IndexedIterator[String]>*/
+}
+var_n = var15;
+{
+var16 = ((long(*)(val* self))(var_n->class->vft[COLOR_core__abstract_text__Text__length]))(var_n); /* length on <var_n:String>*/
+}
+{
+{ /* Inline kernel#Int#+ (var16,2l) on <var16:Int> */
+/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
+/* <2l:Int> isa OTHER */
+var19 = 1; /* easy <2l:Int> isa OTHER*/
+if (unlikely(!var19)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+fatal_exit(1);
+}
+var20 = var16 + 2l;
+var17 = var20;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
+}
+}
+{
+{ /* Inline kernel#Int#+ (var_l,var17) on <var_l:Int> */
+/* Covariant cast for argument 0 (i) <var17:Int> isa OTHER */
+/* <var17:Int> isa OTHER */
+var23 = 1; /* easy <var17:Int> isa OTHER*/
+if (unlikely(!var23)) {
+var_class_name26 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+fatal_exit(1);
+}
+var27 = var_l + var17;
+var21 = var27;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
+}
+}
+var_l = var21;
+{
+((void(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_12); /* next on <var_12:IndexedIterator[String]>*/
+}
+}
+BREAK_label14: (void)0;
+{
+((void(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_12); /* finish on <var_12:IndexedIterator[String]>*/
+}
+{
+{ /* Inline kernel#Int#< (var_lmax,var_l) on <var_lmax:Int> */
+/* Covariant cast for argument 0 (i) <var_l:Int> isa OTHER */
+/* <var_l:Int> isa OTHER */
+var30 = 1; /* easy <var_l:Int> isa OTHER*/
+if (unlikely(!var30)) {
+var_class_name33 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var34 = var_lmax < var_l;
+var28 = var34;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
+}
+}
+if (var28){
+var_lmax = var_l;
+} else {
+}
+{
+((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_4); /* next on <var_4:IndexedIterator[Option]>*/
+}
+}
+BREAK_label: (void)0;
+{
+((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_4); /* finish on <var_4:IndexedIterator[Option]>*/
+}
+{
+{ /* Inline opts#OptionContext#options (self) on <self:OptionContext> */
+var37 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
+if (unlikely(var37 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var35 = var37;
+RET_LABEL36:(void)0;
+}
+}
+var_38 = var35;
+{
+var39 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_38);
+}
+var_40 = var39;
+for(;;) {
+{
+var41 = ((short int(*)(val* self))((((long)var_40&3)?class_info[((long)var_40&3)]:var_40->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_40); /* is_ok on <var_40:IndexedIterator[Option]>*/
+}
+if (var41){
+} else {
+goto BREAK_label42;
 }
-var2 = ((val* (*)(val*))(var1->class->vft[COLOR_abstract_collection__Collection__iterator]))(var1) /* iterator on <var1:Array[Option]>*/;
-for(;;) {
-var3 = ((short int (*)(val*))(var2->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var2) /* is_ok on <var2:Iterator[nullable Object]>*/;
-if(!var3) break;
-var4 = ((val* (*)(val*))(var2->class->vft[COLOR_abstract_collection__Iterator__item]))(var2) /* item on <var2:Iterator[nullable Object]>*/;
-var_i = var4;
-var5 = 3;
-var_l = var5;
-var6 = ((val* (*)(val*))(var_i->class->vft[COLOR_opts__Option__names]))(var_i) /* names on <var_i:Option>*/;
-var7 = ((val* (*)(val*))(var6->class->vft[COLOR_abstract_collection__Collection__iterator]))(var6) /* iterator on <var6:Array[String]>*/;
-for(;;) {
-var8 = ((short int (*)(val*))(var7->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var7) /* is_ok on <var7:Iterator[nullable Object]>*/;
-if(!var8) break;
-var9 = ((val* (*)(val*))(var7->class->vft[COLOR_abstract_collection__Iterator__item]))(var7) /* item on <var7:Iterator[nullable Object]>*/;
-var_n = var9;
-var10 = ((long (*)(val*))(var_n->class->vft[COLOR_abstract_collection__Collection__length]))(var_n) /* length on <var_n:String>*/;
-var11 = 2;
-{ /* Inline kernel#Int#+ (var10,var11) */
-var14 = var10 + var11;
-var12 = var14;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+{
+var43 = ((val*(*)(val* self))((((long)var_40&3)?class_info[((long)var_40&3)]:var_40->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_40); /* item on <var_40:IndexedIterator[Option]>*/
 }
-{ /* Inline kernel#Int#+ (var_l,var12) */
-var17 = var_l + var12;
-var15 = var17;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
+var_i44 = var43;
+{
+{ /* Inline opts#Option#hidden (var_i44) on <var_i44:Option> */
+var47 = var_i44->attrs[COLOR_opts__Option___hidden].s; /* _hidden on <var_i44:Option> */
+var45 = var47;
+RET_LABEL46:(void)0;
 }
-var_l = var15;
-CONTINUE_label: (void)0;
-((void (*)(val*))(var7->class->vft[COLOR_abstract_collection__Iterator__next]))(var7) /* next on <var7:Iterator[nullable Object]>*/;
 }
-BREAK_label: (void)0;
-{ /* Inline kernel#Int#< (var_lmax,var_l) */
-/* Covariant cast for argument 0 (i) <var_l:Int> isa OTHER */
-/* <var_l:Int> isa OTHER */
-var20 = 1; /* easy <var_l:Int> isa OTHER*/
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/standard/kernel.nit", 257);
-exit(1);
+var48 = !var45;
+if (var48){
+var49 = glob_sys;
+{
+var50 = opts___opts__Option___pretty(var_i44, var_lmax);
 }
-var21 = var_lmax < var_l;
-var18 = var21;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+{
+core__file___Sys___print(var49, var50); /* Direct call file#Sys#print on <var49:Sys>*/
 }
-if (var18){
-var_lmax = var_l;
 } else {
 }
-CONTINUE_label22: (void)0;
-((void (*)(val*))(var2->class->vft[COLOR_abstract_collection__Iterator__next]))(var2) /* next on <var2:Iterator[nullable Object]>*/;
+{
+((void(*)(val* self))((((long)var_40&3)?class_info[((long)var_40&3)]:var_40->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_40); /* next on <var_40:IndexedIterator[Option]>*/
 }
-BREAK_label22: (void)0;
-var23 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var23 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 247);
-exit(1);
 }
-var24 = ((val* (*)(val*))(var23->class->vft[COLOR_abstract_collection__Collection__iterator]))(var23) /* iterator on <var23:Array[Option]>*/;
-for(;;) {
-var25 = ((short int (*)(val*))(var24->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var24) /* is_ok on <var24:Iterator[nullable Object]>*/;
-if(!var25) break;
-var26 = ((val* (*)(val*))(var24->class->vft[COLOR_abstract_collection__Iterator__item]))(var24) /* item on <var24:Iterator[nullable Object]>*/;
-var_i27 = var26;
-var28 = ((val* (*)(val*, long))(var_i27->class->vft[COLOR_opts__Option__pretty]))(var_i27, var_lmax) /* pretty on <var_i27:Option>*/;
-((void (*)(val*, val*))(self->class->vft[COLOR_file__Object__print]))(self, var28) /* print on <self:OptionContext>*/;
-CONTINUE_label29: (void)0;
-((void (*)(val*))(var24->class->vft[COLOR_abstract_collection__Iterator__next]))(var24) /* next on <var24:Iterator[nullable Object]>*/;
-}
-BREAK_label29: (void)0;
-RET_LABEL:;
+BREAK_label42: (void)0;
+{
+((void(*)(val* self))((((long)var_40&3)?class_info[((long)var_40&3)]:var_40->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_40); /* finish on <var_40:IndexedIterator[Option]>*/
 }
-/* method opts#OptionContext#usage for (self: Object) */
-void VIRTUAL_opts__OptionContext__usage(val* self) {
-opts__OptionContext__usage(self);
 RET_LABEL:;
 }
-/* method opts#OptionContext#parse for (self: OptionContext, Collection[String]) */
-void opts__OptionContext__parse(val* self, val* p0) {
-val* var_argv /* var argv: Collection[String] */;
-val* var /* : Iterator[nullable Object] */;
+/* method opts#OptionContext#parse for (self: OptionContext, nullable Collection[String]) */
+void opts___opts__OptionContext___parse(val* self, val* p0) {
+val* var_argv /* var argv: nullable Collection[String] */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var2 /* : Sys */;
+val* var3 /* : Sequence[String] */;
+val* var4 /* : Iterator[nullable Object] */;
 val* var_it /* var it: Iterator[String] */;
 var_argv = p0;
-var = ((val* (*)(val*))(var_argv->class->vft[COLOR_abstract_collection__Collection__iterator]))(var_argv) /* iterator on <var_argv:Collection[String]>*/;
-var_it = var;
-((void (*)(val*, val*))(self->class->vft[COLOR_opts__OptionContext__parse_intern]))(self, var_it) /* parse_intern on <self:OptionContext>*/;
+if (var_argv == NULL) {
+var = 1; /* is null */
+} else {
+var = 0; /* arg is null but recv is not */
+}
+if (0) {
+var1 = ((short int(*)(val* self, val* p0))((((long)var_argv&3)?class_info[((long)var_argv&3)]:var_argv->class)->vft[COLOR_core__kernel__Object___61d_61d]))(var_argv, ((val*)NULL)); /* == on <var_argv:nullable Collection[String]>*/
+var = var1;
+}
+if (var){
+var2 = glob_sys;
+{
+var3 = core__abstract_text___Sys___args(var2);
+}
+var_argv = var3;
+} else {
+}
+{
+var4 = ((val*(*)(val* self))((((long)var_argv&3)?class_info[((long)var_argv&3)]:var_argv->class)->vft[COLOR_core__abstract_collection__Collection__iterator]))(var_argv); /* iterator on <var_argv:nullable Collection[String](Collection[String])>*/
+}
+var_it = var4;
+{
+opts___opts__OptionContext___parse_intern(self, var_it); /* Direct call opts#OptionContext#parse_intern on <self:OptionContext>*/
+}
 RET_LABEL:;
 }
-/* method opts#OptionContext#parse for (self: Object, Collection[String]) */
-void VIRTUAL_opts__OptionContext__parse(val* self, val* p0) {
-opts__OptionContext__parse(self, p0);
+/* method opts#OptionContext#options_before_rest for (self: OptionContext): Bool */
+short int opts___opts__OptionContext___options_before_rest(val* self) {
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+var1 = self->attrs[COLOR_opts__OptionContext___options_before_rest].s; /* _options_before_rest on <self:OptionContext> */
+var = var1;
 RET_LABEL:;
+return var;
 }
 /* method opts#OptionContext#parse_intern for (self: OptionContext, Iterator[String]) */
-void opts__OptionContext__parse_intern(val* self, val* p0) {
+void opts___opts__OptionContext___parse_intern(val* self, val* p0) {
 val* var_it /* var it: Iterator[String] */;
-short int var /* : Bool */;
 short int var_parseargs /* var parseargs: Bool */;
-val* var1 /* : Array[String] */;
+val* var /* : Array[String] */;
+val* var2 /* : Array[String] */;
 val* var_rest /* var rest: Array[String] */;
-short int var2 /* : Bool */;
-short int var_ /* var : Bool */;
 short int var3 /* : Bool */;
-val* var4 /* : nullable Object */;
+short int var_ /* var : Bool */;
+short int var4 /* : Bool */;
+val* var5 /* : nullable Object */;
 val* var_str /* var str: String */;
 static val* varonce;
-val* var5 /* : String */;
-char* var6 /* : NativeString */;
-long var7 /* : Int */;
+val* var6 /* : String */;
+char* var7 /* : NativeString */;
 val* var8 /* : String */;
 short int var9 /* : Bool */;
 val* var10 /* : Array[nullable Object] */;
 short int var11 /* : Bool */;
-short int var12 /* : Bool */;
-char var13 /* : Char */;
+val* var12 /* : SequenceRead[Char] */;
+val* var13 /* : nullable Object */;
 long var14 /* : Int */;
-val* var15 /* : nullable Object */;
-long var16 /* : Int */;
+short int var15 /* : Bool */;
 short int var17 /* : Bool */;
-short int var19 /* : Bool */;
-short int var_20 /* var : Bool */;
-long var21 /* : Int */;
-long var22 /* : Int */;
-short int var23 /* : Bool */;
-short int var25 /* : Bool */;
+short int var_18 /* var : Bool */;
+long var19 /* : Int */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
 int cltype;
 int idtype;
-short int var26 /* : Bool */;
-short int var27 /* : Bool */;
+const char* var_class_name;
+short int var23 /* : Bool */;
 short int var_next_called /* var next_called: Bool */;
-val* var28 /* : Range[Int] */;
-long var29 /* : Int */;
-long var30 /* : Int */;
-val* var31 /* : Discrete */;
-val* var32 /* : Discrete */;
-val* var33 /* : Iterator[nullable Object] */;
-short int var34 /* : Bool */;
-val* var35 /* : nullable Object */;
 long var_i /* var i: Int */;
-long var36 /* : Int */;
-static val* varonce37;
-val* var38 /* : String */;
-char* var39 /* : NativeString */;
-long var40 /* : Int */;
+long var24 /* : Int */;
+long var_25 /* var : Int */;
+short int var26 /* : Bool */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+const char* var_class_name31;
+short int var32 /* : Bool */;
+static val* varonce33;
+val* var34 /* : String */;
+char* var35 /* : NativeString */;
+val* var36 /* : String */;
+val* var37 /* : SequenceRead[Char] */;
+val* var38 /* : nullable Object */;
+val* var39 /* : String */;
+uint32_t var40 /* : Char */;
 val* var41 /* : String */;
-val* var42 /* : nullable Object */;
-val* var43 /* : String */;
-char var44 /* : Char */;
-val* var45 /* : String */;
 val* var_short_opt /* var short_opt: String */;
-val* var46 /* : Map[String, Option] */;
-short int var47 /* : Bool */;
-val* var48 /* : Map[String, Option] */;
+val* var42 /* : HashMap[String, Option] */;
+val* var44 /* : HashMap[String, Option] */;
+short int var45 /* : Bool */;
+val* var46 /* : HashMap[String, Option] */;
+val* var48 /* : HashMap[String, Option] */;
 val* var49 /* : nullable Object */;
 val* var_option /* var option: Option */;
 short int var50 /* : Bool */;
 int cltype51;
 int idtype52;
-short int var53 /* : Bool */;
+long var53 /* : Int */;
 short int var54 /* : Bool */;
-val* var55 /* : Map[String, Option] */;
-short int var56 /* : Bool */;
-val* var57 /* : Map[String, Option] */;
-val* var58 /* : nullable Object */;
+val* var55 /* : HashMap[String, Option] */;
+val* var57 /* : HashMap[String, Option] */;
+short int var58 /* : Bool */;
+val* var59 /* : HashMap[String, Option] */;
+val* var61 /* : HashMap[String, Option] */;
+val* var62 /* : nullable Object */;
 val* var_opt /* var opt: Option */;
-val* var59 /* : nullable Object */;
-val* var61 /* : Array[Option] */;
-val* var62 /* : Iterator[nullable Object] */;
-short int var63 /* : Bool */;
-val* var64 /* : nullable Object */;
-val* var_opt65 /* var opt: Option */;
+val* var63 /* : nullable Object */;
+short int var64 /* : Bool */;
 short int var66 /* : Bool */;
-short int var67 /* : Bool */;
-short int var_68 /* var : Bool */;
-short int var69 /* : Bool */;
-short int var70 /* : Bool */;
-val* var71 /* : Array[String] */;
-static val* varonce72;
-val* var73 /* : String */;
-char* var74 /* : NativeString */;
-long var75 /* : Int */;
-val* var76 /* : String */;
-val* var77 /* : Array[String] */;
-static val* varonce78;
-val* var79 /* : String */;
-char* var80 /* : NativeString */;
-long var81 /* : Int */;
-val* var82 /* : String */;
-val* var83 /* : String */;
-static val* varonce84;
-val* var85 /* : String */;
-char* var86 /* : NativeString */;
-long var87 /* : Int */;
-val* var88 /* : String */;
-val* var89 /* : Array[Object] */;
-long var90 /* : Int */;
-val* var91 /* : NativeArray[Object] */;
-val* var92 /* : String */;
+val* var67 /* : Array[nullable Object] */;
+val* var69 /* : Array[Option] */;
+val* var71 /* : Array[Option] */;
+val* var_72 /* var : Array[Option] */;
+val* var73 /* : IndexedIterator[nullable Object] */;
+val* var_74 /* var : IndexedIterator[Option] */;
+short int var75 /* : Bool */;
+val* var77 /* : nullable Object */;
+val* var_opt78 /* var opt: Option */;
+short int var79 /* : Bool */;
+short int var80 /* : Bool */;
+short int var82 /* : Bool */;
+short int var_83 /* var : Bool */;
+short int var84 /* : Bool */;
+short int var86 /* : Bool */;
+short int var87 /* : Bool */;
+val* var88 /* : Array[String] */;
+val* var90 /* : Array[String] */;
+val* var92 /* : NativeArray[String] */;
+static val* varonce91;
+static val* varonce93;
+val* var94 /* : String */;
+char* var95 /* : NativeString */;
+val* var96 /* : String */;
+static val* varonce97;
+val* var98 /* : String */;
+char* var99 /* : NativeString */;
+val* var100 /* : String */;
+val* var101 /* : Array[String] */;
+val* var103 /* : Array[String] */;
+static val* varonce104;
+val* var105 /* : String */;
+char* var106 /* : NativeString */;
+val* var107 /* : String */;
+val* var108 /* : String */;
+val* var109 /* : String */;
 var_it = p0;
-var = 1;
-var_parseargs = var;
-((void (*)(val*))(self->class->vft[COLOR_opts__OptionContext__build]))(self) /* build on <self:OptionContext>*/;
-var1 = self->attrs[COLOR_opts__OptionContext___rest].val; /* _rest on <self:OptionContext> */
-if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _rest", "lib/opts.nit", 263);
-exit(1);
+var_parseargs = 1;
+{
+opts___opts__OptionContext___build(self); /* Direct call opts#OptionContext#build on <self:OptionContext>*/
+}
+{
+{ /* Inline opts#OptionContext#rest (self) on <self:OptionContext> */
+var2 = self->attrs[COLOR_opts__OptionContext___rest].val; /* _rest on <self:OptionContext> */
+if (unlikely(var2 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _rest");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 280);
+fatal_exit(1);
+}
+var = var2;
+RET_LABEL1:(void)0;
+}
 }
-var_rest = var1;
+var_rest = var;
 for(;;) {
 var_ = var_parseargs;
 if (var_parseargs){
-var3 = ((short int (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var_it) /* is_ok on <var_it:Iterator[String]>*/;
-var2 = var3;
+{
+var4 = ((short int(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_it); /* is_ok on <var_it:Iterator[String]>*/
+}
+var3 = var4;
 } else {
-var2 = var_;
+var3 = var_;
+}
+if (var3){
+{
+var5 = ((val*(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_it); /* item on <var_it:Iterator[String]>*/
 }
-if (!var2) break;
-var4 = ((val* (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__item]))(var_it) /* item on <var_it:Iterator[String]>*/;
-var_str = var4;
-if (varonce) {
-var5 = varonce;
+var_str = var5;
+if (likely(varonce!=NULL)) {
+var6 = varonce;
 } else {
-var6 = "--";
-var7 = 2;
-var8 = string__NativeString__to_s_with_length(var6, var7);
-var5 = var8;
-varonce = var5;
+var7 = "--";
+var8 = core__flat___NativeString___to_s_full(var7, 2l, 2l);
+var6 = var8;
+varonce = var6;
+}
+{
+var9 = ((short int(*)(val* self, val* p0))(var_str->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_str, var6); /* == on <var_str:String>*/
 }
-var9 = ((short int (*)(val*, val*))(var_str->class->vft[COLOR_kernel__Object___61d_61d]))(var_str, var5) /* == on <var_str:String>*/;
 if (var9){
-((void (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__next]))(var_it) /* next on <var_it:Iterator[String]>*/;
-var10 = ((val* (*)(val*))(var_it->class->vft[COLOR_array__Iterator__to_a]))(var_it) /* to_a on <var_it:Iterator[String]>*/;
-((void (*)(val*, val*))(var_rest->class->vft[COLOR_abstract_collection__SimpleCollection__add_all]))(var_rest, var10) /* add_all on <var_rest:Array[String]>*/;
-var11 = 0;
-var_parseargs = var11;
-} else {
-var13 = '-';
-var15 = BOX_kernel__Char(var13); /* autobox from Char to nullable Object */
-var14 = ((long (*)(val*, val*))(var_str->class->vft[COLOR_array__AbstractArrayRead__last_index_of]))(var_str, var15) /* last_index_of on <var_str:String>*/;
-var16 = 0;
-{ /* Inline kernel#Int#== (var14,var16) */
-var19 = var14 == var16;
-var17 = var19;
-goto RET_LABEL18;
-RET_LABEL18:(void)0;
+{
+((void(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_it); /* next on <var_it:Iterator[String]>*/
+}
+{
+var10 = core__array___Iterator___to_a(var_it);
+}
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add_all(var_rest, var10); /* Direct call array#Array#add_all on <var_rest:Array[String]>*/
+}
+var_parseargs = 0;
+} else {
+{
+var12 = ((val*(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Text__chars]))(var_str); /* chars on <var_str:String>*/
+}
+{
+var13 = (val*)((long)('-')<<2|2);
+var14 = ((long(*)(val* self, val* p0))((((long)var12&3)?class_info[((long)var12&3)]:var12->class)->vft[COLOR_core__abstract_collection__SequenceRead__last_index_of]))(var12, var13); /* last_index_of on <var12:SequenceRead[Char]>*/
+}
+{
+{ /* Inline kernel#Int#== (var14,0l) on <var14:Int> */
+var17 = var14 == 0l;
+var15 = var17;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
+}
+}
+var_18 = var15;
+if (var15){
+{
+var19 = ((long(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Text__length]))(var_str); /* length on <var_str:String>*/
+}
+{
+{ /* Inline kernel#Int#> (var19,2l) on <var19:Int> */
+/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
+/* <2l:Int> isa OTHER */
+var22 = 1; /* easy <2l:Int> isa OTHER*/
+if (unlikely(!var22)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+fatal_exit(1);
+}
+var23 = var19 > 2l;
+var20 = var23;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
+}
+}
+var11 = var20;
+} else {
+var11 = var_18;
 }
-var_20 = var17;
-if (var17){
-var21 = ((long (*)(val*))(var_str->class->vft[COLOR_abstract_collection__Collection__length]))(var_str) /* length on <var_str:String>*/;
-var22 = 2;
-{ /* Inline kernel#Int#> (var21,var22) */
-/* Covariant cast for argument 0 (i) <var22:Int> isa OTHER */
-/* <var22:Int> isa OTHER */
-var25 = 1; /* easy <var22:Int> isa OTHER*/
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Cast failed", "lib/standard/kernel.nit", 259);
-exit(1);
-}
-var26 = var21 > var22;
-var23 = var26;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
-}
-var12 = var23;
-} else {
-var12 = var_20;
-}
-if (var12){
-var27 = 0;
-var_next_called = var27;
-var28 = NEW_range__Range(&type_range__Rangekernel__Int);
-var29 = 1;
-var30 = ((long (*)(val*))(var_str->class->vft[COLOR_abstract_collection__Collection__length]))(var_str) /* length on <var_str:String>*/;
-var31 = BOX_kernel__Int(var29); /* autobox from Int to Discrete */
-var32 = BOX_kernel__Int(var30); /* autobox from Int to Discrete */
-((void (*)(val*, val*, val*))(var28->class->vft[COLOR_range__Range__init]))(var28, var31, var32) /* init on <var28:Range[Int]>*/;
-CHECK_NEW_range__Range(var28);
-var33 = ((val* (*)(val*))(var28->class->vft[COLOR_abstract_collection__Collection__iterator]))(var28) /* iterator on <var28:Range[Int]>*/;
+if (var11){
+var_next_called = 0;
+var_i = 1l;
+{
+var24 = ((long(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Text__length]))(var_str); /* length on <var_str:String>*/
+}
+var_25 = var24;
 for(;;) {
-var34 = ((short int (*)(val*))(var33->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var33) /* is_ok on <var33:Iterator[nullable Object]>*/;
-if(!var34) break;
-var35 = ((val* (*)(val*))(var33->class->vft[COLOR_abstract_collection__Iterator__item]))(var33) /* item on <var33:Iterator[nullable Object]>*/;
-var36 = ((struct instance_kernel__Int*)var35)->value; /* autounbox from nullable Object to Int */;
-var_i = var36;
-if (varonce37) {
-var38 = varonce37;
-} else {
-var39 = "-";
-var40 = 1;
-var41 = string__NativeString__to_s_with_length(var39, var40);
-var38 = var41;
-varonce37 = var38;
-}
-var42 = ((val* (*)(val*, long))(var_str->class->vft[COLOR_abstract_collection__SequenceRead___91d_93d]))(var_str, var_i) /* [] on <var_str:String>*/;
-var44 = ((struct instance_kernel__Char*)var42)->value; /* autounbox from nullable Object to Char */;
-var43 = string__Char__to_s(var44);
-var45 = ((val* (*)(val*, val*))(var38->class->vft[COLOR_string__String___43d]))(var38, var43) /* + on <var38:String>*/;
-var_short_opt = var45;
-var46 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
-if (var46 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _optmap", "lib/opts.nit", 277);
-exit(1);
-}
-var47 = ((short int (*)(val*, val*))(var46->class->vft[COLOR_abstract_collection__MapRead__has_key]))(var46, var_short_opt) /* has_key on <var46:Map[String, Option]>*/;
-if (var47){
+{
+{ /* Inline kernel#Int#< (var_i,var_25) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var_25:Int> isa OTHER */
+/* <var_25:Int> isa OTHER */
+var28 = 1; /* easy <var_25:Int> isa OTHER*/
+if (unlikely(!var28)) {
+var_class_name31 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name31);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var32 = var_i < var_25;
+var26 = var32;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
+}
+}
+if (var26){
+} else {
+goto BREAK_label;
+}
+if (likely(varonce33!=NULL)) {
+var34 = varonce33;
+} else {
+var35 = "-";
+var36 = core__flat___NativeString___to_s_full(var35, 1l, 1l);
+var34 = var36;
+varonce33 = var34;
+}
+{
+var37 = ((val*(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Text__chars]))(var_str); /* chars on <var_str:String>*/
+}
+{
+var38 = ((val*(*)(val* self, long p0))((((long)var37&3)?class_info[((long)var37&3)]:var37->class)->vft[COLOR_core__abstract_collection__SequenceRead___91d_93d]))(var37, var_i); /* [] on <var37:SequenceRead[Char]>*/
+}
+{
+var40 = (uint32_t)((long)(var38)>>2);
+var39 = core__abstract_text___Char___Object__to_s(var40);
+}
+{
+var41 = ((val*(*)(val* self, val* p0))(var34->class->vft[COLOR_core__abstract_text__String___43d]))(var34, var39); /* + on <var34:String>*/
+}
+var_short_opt = var41;
+{
+{ /* Inline opts#OptionContext#optmap (self) on <self:OptionContext> */
+var44 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
+if (unlikely(var44 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _optmap");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 286);
+fatal_exit(1);
+}
+var42 = var44;
+RET_LABEL43:(void)0;
+}
+}
+{
+var45 = core___core__HashMap___core__abstract_collection__MapRead__has_key(var42, var_short_opt);
+}
+if (var45){
+{
+{ /* Inline opts#OptionContext#optmap (self) on <self:OptionContext> */
 var48 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
-if (var48 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _optmap", "lib/opts.nit", 278);
-exit(1);
+if (unlikely(var48 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _optmap");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 286);
+fatal_exit(1);
+}
+var46 = var48;
+RET_LABEL47:(void)0;
+}
+}
+{
+var49 = core___core__HashMap___core__abstract_collection__MapRead___91d_93d(var46, var_short_opt);
 }
-var49 = ((val* (*)(val*, val*))(var48->class->vft[COLOR_abstract_collection__MapRead___91d_93d]))(var48, var_short_opt) /* [] on <var48:Map[String, Option]>*/;
 var_option = var49;
 /* <var_option:Option> isa OptionParameter */
 cltype51 = type_opts__OptionParameter.color;
@@ -1962,307 +1897,467 @@ var50 = 0;
 var50 = var_option->type->type_table[cltype51] == idtype52;
 }
 if (var50){
-((void (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__next]))(var_it) /* next on <var_it:Iterator[String]>*/;
-var53 = 1;
-var_next_called = var53;
+{
+((void(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_it); /* next on <var_it:Iterator[String]>*/
+}
+var_next_called = 1;
 } else {
 }
-((void (*)(val*, val*))(var_option->class->vft[COLOR_opts__Option__read_param]))(var_option, var_it) /* read_param on <var_option:Option>*/;
+{
+((void(*)(val* self, val* p0, val* p1))(var_option->class->vft[COLOR_opts__Option__read_param]))(var_option, self, var_it); /* read_param on <var_option:Option>*/
+}
 } else {
 }
-CONTINUE_label: (void)0;
-((void (*)(val*))(var33->class->vft[COLOR_abstract_collection__Iterator__next]))(var33) /* next on <var33:Iterator[nullable Object]>*/;
+{
+var53 = core___core__Int___Discrete__successor(var_i, 1l);
+}
+var_i = var53;
 }
 BREAK_label: (void)0;
 var54 = !var_next_called;
 if (var54){
-((void (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__next]))(var_it) /* next on <var_it:Iterator[String]>*/;
-} else {
+{
+((void(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_it); /* next on <var_it:Iterator[String]>*/
 }
 } else {
-var55 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
-if (var55 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _optmap", "lib/opts.nit", 288);
-exit(1);
 }
-var56 = ((short int (*)(val*, val*))(var55->class->vft[COLOR_abstract_collection__MapRead__has_key]))(var55, var_str) /* has_key on <var55:Map[String, Option]>*/;
-if (var56){
+} else {
+{
+{ /* Inline opts#OptionContext#optmap (self) on <self:OptionContext> */
 var57 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
-if (var57 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _optmap", "lib/opts.nit", 289);
-exit(1);
+if (unlikely(var57 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _optmap");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 286);
+fatal_exit(1);
+}
+var55 = var57;
+RET_LABEL56:(void)0;
+}
+}
+{
+var58 = core___core__HashMap___core__abstract_collection__MapRead__has_key(var55, var_str);
+}
+if (var58){
+{
+{ /* Inline opts#OptionContext#optmap (self) on <self:OptionContext> */
+var61 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
+if (unlikely(var61 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _optmap");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 286);
+fatal_exit(1);
+}
+var59 = var61;
+RET_LABEL60:(void)0;
+}
+}
+{
+var62 = core___core__HashMap___core__abstract_collection__MapRead___91d_93d(var59, var_str);
+}
+var_opt = var62;
+{
+((void(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_it); /* next on <var_it:Iterator[String]>*/
+}
+{
+((void(*)(val* self, val* p0, val* p1))(var_opt->class->vft[COLOR_opts__Option__read_param]))(var_opt, self, var_it); /* read_param on <var_opt:Option>*/
 }
-var58 = ((val* (*)(val*, val*))(var57->class->vft[COLOR_abstract_collection__MapRead___91d_93d]))(var57, var_str) /* [] on <var57:Map[String, Option]>*/;
-var_opt = var58;
-((void (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__next]))(var_it) /* next on <var_it:Iterator[String]>*/;
-((void (*)(val*, val*))(var_opt->class->vft[COLOR_opts__Option__read_param]))(var_opt, var_it) /* read_param on <var_opt:Option>*/;
 } else {
-var59 = ((val* (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__item]))(var_it) /* item on <var_it:Iterator[String]>*/;
-((void (*)(val*, val*))(var_rest->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_rest, var59) /* add on <var_rest:Array[String]>*/;
-((void (*)(val*))(var_it->class->vft[COLOR_abstract_collection__Iterator__next]))(var_it) /* next on <var_it:Iterator[String]>*/;
+{
+var63 = ((val*(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_it); /* item on <var_it:Iterator[String]>*/
 }
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add(var_rest, var63); /* Direct call array#Array#add on <var_rest:Array[String]>*/
 }
+{
+((void(*)(val* self))((((long)var_it&3)?class_info[((long)var_it&3)]:var_it->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_it); /* next on <var_it:Iterator[String]>*/
 }
-CONTINUE_label60: (void)0;
+{
+{ /* Inline opts#OptionContext#options_before_rest (self) on <self:OptionContext> */
+var66 = self->attrs[COLOR_opts__OptionContext___options_before_rest].s; /* _options_before_rest on <self:OptionContext> */
+var64 = var66;
+RET_LABEL65:(void)0;
 }
-BREAK_label60: (void)0;
-var61 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var61 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 300);
-exit(1);
 }
-var62 = ((val* (*)(val*))(var61->class->vft[COLOR_abstract_collection__Collection__iterator]))(var61) /* iterator on <var61:Array[Option]>*/;
-for(;;) {
-var63 = ((short int (*)(val*))(var62->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var62) /* is_ok on <var62:Iterator[nullable Object]>*/;
-if(!var63) break;
-var64 = ((val* (*)(val*))(var62->class->vft[COLOR_abstract_collection__Iterator__item]))(var62) /* item on <var62:Iterator[nullable Object]>*/;
-var_opt65 = var64;
-var67 = ((short int (*)(val*))(var_opt65->class->vft[COLOR_opts__Option__mandatory]))(var_opt65) /* mandatory on <var_opt65:Option>*/;
-var_68 = var67;
-if (var67){
-var69 = ((short int (*)(val*))(var_opt65->class->vft[COLOR_opts__Option__read]))(var_opt65) /* read on <var_opt65:Option>*/;
-var70 = !var69;
-var66 = var70;
-} else {
-var66 = var_68;
-}
-if (var66){
-var71 = self->attrs[COLOR_opts__OptionContext___errors].val; /* _errors on <self:OptionContext> */
-if (var71 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _errors", "lib/opts.nit", 302);
-exit(1);
-}
-if (varonce72) {
-var73 = varonce72;
-} else {
-var74 = "Mandatory option ";
-var75 = 17;
-var76 = string__NativeString__to_s_with_length(var74, var75);
-var73 = var76;
-varonce72 = var73;
-}
-var77 = ((val* (*)(val*))(var_opt65->class->vft[COLOR_opts__Option__names]))(var_opt65) /* names on <var_opt65:Option>*/;
-if (varonce78) {
-var79 = varonce78;
-} else {
-var80 = ", ";
-var81 = 2;
-var82 = string__NativeString__to_s_with_length(var80, var81);
-var79 = var82;
-varonce78 = var79;
-}
-var83 = ((val* (*)(val*, val*))(var77->class->vft[COLOR_string__Collection__join]))(var77, var79) /* join on <var77:Array[String]>*/;
-if (varonce84) {
-var85 = varonce84;
-} else {
-var86 = " not found.";
-var87 = 11;
-var88 = string__NativeString__to_s_with_length(var86, var87);
-var85 = var88;
-varonce84 = var85;
-}
-var89 = NEW_array__Array(&type_array__Arraykernel__Object);
-{ /* var89 = array_instance Array[Object] */
-var90 = 3;
-var91 = NEW_array__NativeArray(var90, &type_array__NativeArraykernel__Object);
-((struct instance_array__NativeArray*)var91)->values[0] = (val*) var73;
-((struct instance_array__NativeArray*)var91)->values[1] = (val*) var83;
-((struct instance_array__NativeArray*)var91)->values[2] = (val*) var85;
-((void (*)(val*, val*, long))(var89->class->vft[COLOR_array__Array__with_native]))(var89, var91, var90) /* with_native on <var89:Array[Object]>*/;
-CHECK_NEW_array__Array(var89);
-}
-var92 = ((val* (*)(val*))(var89->class->vft[COLOR_string__Object__to_s]))(var89) /* to_s on <var89:Array[Object]>*/;
-((void (*)(val*, val*))(var71->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var71, var92) /* add on <var71:Array[String]>*/;
-} else {
-}
-CONTINUE_label93: (void)0;
-((void (*)(val*))(var62->class->vft[COLOR_abstract_collection__Iterator__next]))(var62) /* next on <var62:Iterator[nullable Object]>*/;
-}
-BREAK_label93: (void)0;
-RET_LABEL:;
+if (var64){
+{
+var67 = core__array___Iterator___to_a(var_it);
 }
-/* method opts#OptionContext#parse_intern for (self: Object, Iterator[String]) */
-void VIRTUAL_opts__OptionContext__parse_intern(val* self, val* p0) {
-opts__OptionContext__parse_intern(self, p0);
-RET_LABEL:;
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add_all(var_rest, var67); /* Direct call array#Array#add_all on <var_rest:Array[String]>*/
 }
-/* method opts#OptionContext#add_option for (self: OptionContext, Array[Option]) */
-void opts__OptionContext__add_option(val* self, val* p0) {
-val* var_opts /* var opts: Array[Option] */;
-val* var /* : Iterator[nullable Object] */;
-short int var1 /* : Bool */;
-val* var2 /* : nullable Object */;
-val* var_opt /* var opt: Option */;
-val* var3 /* : Array[Option] */;
-var_opts = p0;
-var = ((val* (*)(val*))(var_opts->class->vft[COLOR_abstract_collection__Collection__iterator]))(var_opts) /* iterator on <var_opts:Array[Option]>*/;
+var_parseargs = 0;
+} else {
+}
+}
+}
+}
+} else {
+goto BREAK_label68;
+}
+}
+BREAK_label68: (void)0;
+{
+{ /* Inline opts#OptionContext#options (self) on <self:OptionContext> */
+var71 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
+if (unlikely(var71 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var69 = var71;
+RET_LABEL70:(void)0;
+}
+}
+var_72 = var69;
+{
+var73 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_72);
+}
+var_74 = var73;
 for(;;) {
-var1 = ((short int (*)(val*))(var->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var) /* is_ok on <var:Iterator[nullable Object]>*/;
-if(!var1) break;
-var2 = ((val* (*)(val*))(var->class->vft[COLOR_abstract_collection__Iterator__item]))(var) /* item on <var:Iterator[nullable Object]>*/;
-var_opt = var2;
-var3 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var3 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 310);
-exit(1);
-}
-((void (*)(val*, val*))(var3->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var3, var_opt) /* add on <var3:Array[Option]>*/;
-CONTINUE_label: (void)0;
-((void (*)(val*))(var->class->vft[COLOR_abstract_collection__Iterator__next]))(var) /* next on <var:Iterator[nullable Object]>*/;
+{
+var75 = ((short int(*)(val* self))((((long)var_74&3)?class_info[((long)var_74&3)]:var_74->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_74); /* is_ok on <var_74:IndexedIterator[Option]>*/
 }
-BREAK_label: (void)0;
-RET_LABEL:;
+if (var75){
+} else {
+goto BREAK_label76;
 }
-/* method opts#OptionContext#add_option for (self: Object, Array[Option]) */
-void VIRTUAL_opts__OptionContext__add_option(val* self, val* p0) {
-opts__OptionContext__add_option(self, p0);
-RET_LABEL:;
+{
+var77 = ((val*(*)(val* self))((((long)var_74&3)?class_info[((long)var_74&3)]:var_74->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_74); /* item on <var_74:IndexedIterator[Option]>*/
 }
-/* method opts#OptionContext#init for (self: OptionContext) */
-void opts__OptionContext__init(val* self) {
-val* var /* : Array[Option] */;
-val* var1 /* : HashMap[String, Option] */;
-val* var2 /* : Array[String] */;
-val* var3 /* : Array[String] */;
-var = NEW_array__Array(&type_array__Arrayopts__Option);
-((void (*)(val*))(var->class->vft[COLOR_array__Array__init]))(var) /* init on <var:Array[Option]>*/;
-CHECK_NEW_array__Array(var);
-self->attrs[COLOR_opts__OptionContext___options].val = var; /* _options on <self:OptionContext> */
-var1 = NEW_hash_collection__HashMap(&type_hash_collection__HashMapstring__Stringopts__Option);
-((void (*)(val*))(var1->class->vft[COLOR_hash_collection__HashMap__init]))(var1) /* init on <var1:HashMap[String, Option]>*/;
-CHECK_NEW_hash_collection__HashMap(var1);
-self->attrs[COLOR_opts__OptionContext___optmap].val = var1; /* _optmap on <self:OptionContext> */
-var2 = NEW_array__Array(&type_array__Arraystring__String);
-((void (*)(val*))(var2->class->vft[COLOR_array__Array__init]))(var2) /* init on <var2:Array[String]>*/;
-CHECK_NEW_array__Array(var2);
-self->attrs[COLOR_opts__OptionContext___rest].val = var2; /* _rest on <self:OptionContext> */
-var3 = NEW_array__Array(&type_array__Arraystring__String);
-((void (*)(val*))(var3->class->vft[COLOR_array__Array__init]))(var3) /* init on <var3:Array[String]>*/;
-CHECK_NEW_array__Array(var3);
-self->attrs[COLOR_opts__OptionContext___errors].val = var3; /* _errors on <self:OptionContext> */
-RET_LABEL:;
+var_opt78 = var77;
+{
+{ /* Inline opts#Option#mandatory (var_opt78) on <var_opt78:Option> */
+var82 = var_opt78->attrs[COLOR_opts__Option___mandatory].s; /* _mandatory on <var_opt78:Option> */
+var80 = var82;
+RET_LABEL81:(void)0;
+}
+}
+var_83 = var80;
+if (var80){
+{
+{ /* Inline opts#Option#read (var_opt78) on <var_opt78:Option> */
+var86 = var_opt78->attrs[COLOR_opts__Option___read].s; /* _read on <var_opt78:Option> */
+var84 = var86;
+RET_LABEL85:(void)0;
+}
+}
+var87 = !var84;
+var79 = var87;
+} else {
+var79 = var_83;
+}
+if (var79){
+{
+{ /* Inline opts#OptionContext#context_errors (self) on <self:OptionContext> */
+var90 = self->attrs[COLOR_opts__OptionContext___context_errors].val; /* _context_errors on <self:OptionContext> */
+if (unlikely(var90 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _context_errors");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 283);
+fatal_exit(1);
+}
+var88 = var90;
+RET_LABEL89:(void)0;
+}
+}
+if (unlikely(varonce91==NULL)) {
+var92 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
+if (likely(varonce93!=NULL)) {
+var94 = varonce93;
+} else {
+var95 = "Mandatory option ";
+var96 = core__flat___NativeString___to_s_full(var95, 17l, 17l);
+var94 = var96;
+varonce93 = var94;
+}
+((struct instance_core__NativeArray*)var92)->values[0]=var94;
+if (likely(varonce97!=NULL)) {
+var98 = varonce97;
+} else {
+var99 = " not found.";
+var100 = core__flat___NativeString___to_s_full(var99, 11l, 11l);
+var98 = var100;
+varonce97 = var98;
+}
+((struct instance_core__NativeArray*)var92)->values[2]=var98;
+} else {
+var92 = varonce91;
+varonce91 = NULL;
+}
+{
+{ /* Inline opts#Option#names (var_opt78) on <var_opt78:Option> */
+var103 = var_opt78->attrs[COLOR_opts__Option___names].val; /* _names on <var_opt78:Option> */
+if (unlikely(var103 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
+}
+var101 = var103;
+RET_LABEL102:(void)0;
+}
+}
+if (likely(varonce104!=NULL)) {
+var105 = varonce104;
+} else {
+var106 = ", ";
+var107 = core__flat___NativeString___to_s_full(var106, 2l, 2l);
+var105 = var107;
+varonce104 = var105;
+}
+{
+var108 = core__abstract_text___Collection___join(var101, var105);
+}
+((struct instance_core__NativeArray*)var92)->values[1]=var108;
+{
+var109 = ((val*(*)(val* self))(var92->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var92); /* native_to_s on <var92:NativeArray[String]>*/
+}
+varonce91 = var92;
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add(var88, var109); /* Direct call array#Array#add on <var88:Array[String]>*/
+}
+} else {
+}
+{
+((void(*)(val* self))((((long)var_74&3)?class_info[((long)var_74&3)]:var_74->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_74); /* next on <var_74:IndexedIterator[Option]>*/
+}
+}
+BREAK_label76: (void)0;
+{
+((void(*)(val* self))((((long)var_74&3)?class_info[((long)var_74&3)]:var_74->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_74); /* finish on <var_74:IndexedIterator[Option]>*/
 }
-/* method opts#OptionContext#init for (self: Object) */
-void VIRTUAL_opts__OptionContext__init(val* self) {
-opts__OptionContext__init(self);
 RET_LABEL:;
 }
 /* method opts#OptionContext#build for (self: OptionContext) */
-void opts__OptionContext__build(val* self) {
+void opts___opts__OptionContext___build(val* self) {
 val* var /* : Array[Option] */;
-val* var1 /* : Iterator[nullable Object] */;
-short int var2 /* : Bool */;
-val* var3 /* : nullable Object */;
+val* var2 /* : Array[Option] */;
+val* var_ /* var : Array[Option] */;
+val* var3 /* : IndexedIterator[nullable Object] */;
+val* var_4 /* var : IndexedIterator[Option] */;
+short int var5 /* : Bool */;
+val* var6 /* : nullable Object */;
 val* var_o /* var o: Option */;
-val* var4 /* : Array[String] */;
-val* var5 /* : Iterator[nullable Object] */;
-short int var6 /* : Bool */;
-val* var7 /* : nullable Object */;
+val* var7 /* : Array[String] */;
+val* var9 /* : Array[String] */;
+val* var_10 /* var : Array[String] */;
+val* var11 /* : IndexedIterator[nullable Object] */;
+val* var_12 /* var : IndexedIterator[String] */;
+short int var13 /* : Bool */;
+val* var15 /* : nullable Object */;
 val* var_n /* var n: String */;
-val* var8 /* : Map[String, Option] */;
-var = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 324);
-exit(1);
+val* var16 /* : HashMap[String, Option] */;
+val* var18 /* : HashMap[String, Option] */;
+{
+{ /* Inline opts#OptionContext#options (self) on <self:OptionContext> */
+var2 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
+if (unlikely(var2 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var = var2;
+RET_LABEL1:(void)0;
+}
 }
-var1 = ((val* (*)(val*))(var->class->vft[COLOR_abstract_collection__Collection__iterator]))(var) /* iterator on <var:Array[Option]>*/;
+var_ = var;
+{
+var3 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_);
+}
+var_4 = var3;
 for(;;) {
-var2 = ((short int (*)(val*))(var1->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var1) /* is_ok on <var1:Iterator[nullable Object]>*/;
-if(!var2) break;
-var3 = ((val* (*)(val*))(var1->class->vft[COLOR_abstract_collection__Iterator__item]))(var1) /* item on <var1:Iterator[nullable Object]>*/;
-var_o = var3;
-var4 = ((val* (*)(val*))(var_o->class->vft[COLOR_opts__Option__names]))(var_o) /* names on <var_o:Option>*/;
-var5 = ((val* (*)(val*))(var4->class->vft[COLOR_abstract_collection__Collection__iterator]))(var4) /* iterator on <var4:Array[String]>*/;
+{
+var5 = ((short int(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_4); /* is_ok on <var_4:IndexedIterator[Option]>*/
+}
+if (var5){
+} else {
+goto BREAK_label;
+}
+{
+var6 = ((val*(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_4); /* item on <var_4:IndexedIterator[Option]>*/
+}
+var_o = var6;
+{
+{ /* Inline opts#Option#names (var_o) on <var_o:Option> */
+var9 = var_o->attrs[COLOR_opts__Option___names].val; /* _names on <var_o:Option> */
+if (unlikely(var9 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _names");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 19);
+fatal_exit(1);
+}
+var7 = var9;
+RET_LABEL8:(void)0;
+}
+}
+var_10 = var7;
+{
+var11 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_10);
+}
+var_12 = var11;
 for(;;) {
-var6 = ((short int (*)(val*))(var5->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var5) /* is_ok on <var5:Iterator[nullable Object]>*/;
-if(!var6) break;
-var7 = ((val* (*)(val*))(var5->class->vft[COLOR_abstract_collection__Iterator__item]))(var5) /* item on <var5:Iterator[nullable Object]>*/;
-var_n = var7;
-var8 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
-if (var8 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _optmap", "lib/opts.nit", 326);
-exit(1);
-}
-((void (*)(val*, val*, val*))(var8->class->vft[COLOR_abstract_collection__Map___91d_93d_61d]))(var8, var_n, var_o) /* []= on <var8:Map[String, Option]>*/;
-CONTINUE_label: (void)0;
-((void (*)(val*))(var5->class->vft[COLOR_abstract_collection__Iterator__next]))(var5) /* next on <var5:Iterator[nullable Object]>*/;
+{
+var13 = ((short int(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_12); /* is_ok on <var_12:IndexedIterator[String]>*/
 }
-BREAK_label: (void)0;
-CONTINUE_label9: (void)0;
-((void (*)(val*))(var1->class->vft[COLOR_abstract_collection__Iterator__next]))(var1) /* next on <var1:Iterator[nullable Object]>*/;
+if (var13){
+} else {
+goto BREAK_label14;
+}
+{
+var15 = ((val*(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_12); /* item on <var_12:IndexedIterator[String]>*/
+}
+var_n = var15;
+{
+{ /* Inline opts#OptionContext#optmap (self) on <self:OptionContext> */
+var18 = self->attrs[COLOR_opts__OptionContext___optmap].val; /* _optmap on <self:OptionContext> */
+if (unlikely(var18 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _optmap");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 286);
+fatal_exit(1);
+}
+var16 = var18;
+RET_LABEL17:(void)0;
+}
+}
+{
+core___core__HashMap___core__abstract_collection__Map___91d_93d_61d(var16, var_n, var_o); /* Direct call hash_collection#HashMap#[]= on <var16:HashMap[String, Option]>*/
+}
+{
+((void(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_12); /* next on <var_12:IndexedIterator[String]>*/
+}
+}
+BREAK_label14: (void)0;
+{
+((void(*)(val* self))((((long)var_12&3)?class_info[((long)var_12&3)]:var_12->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_12); /* finish on <var_12:IndexedIterator[String]>*/
+}
+{
+((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_4); /* next on <var_4:IndexedIterator[Option]>*/
 }
-BREAK_label9: (void)0;
-RET_LABEL:;
 }
-/* method opts#OptionContext#build for (self: Object) */
-void VIRTUAL_opts__OptionContext__build(val* self) {
-opts__OptionContext__build(self);
+BREAK_label: (void)0;
+{
+((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_4); /* finish on <var_4:IndexedIterator[Option]>*/
+}
 RET_LABEL:;
 }
-/* method opts#OptionContext#get_errors for (self: OptionContext): Array[String] */
-val* opts__OptionContext__get_errors(val* self) {
+/* method opts#OptionContext#errors for (self: OptionContext): Array[String] */
+val* opts___opts__OptionContext___errors(val* self) {
 val* var /* : Array[String] */;
 val* var1 /* : Array[String] */;
 val* var_errors /* var errors: Array[String] */;
 val* var2 /* : Array[String] */;
-val* var3 /* : Array[Option] */;
-val* var4 /* : Iterator[nullable Object] */;
-short int var5 /* : Bool */;
-val* var6 /* : nullable Object */;
+val* var4 /* : Array[String] */;
+val* var5 /* : Array[Option] */;
+val* var7 /* : Array[Option] */;
+val* var_ /* var : Array[Option] */;
+val* var8 /* : IndexedIterator[nullable Object] */;
+val* var_9 /* var : IndexedIterator[Option] */;
+short int var10 /* : Bool */;
+val* var11 /* : nullable Object */;
 val* var_o /* var o: Option */;
-val* var7 /* : Array[String] */;
-val* var8 /* : Iterator[nullable Object] */;
-short int var9 /* : Bool */;
-val* var10 /* : nullable Object */;
+val* var12 /* : Array[String] */;
+val* var14 /* : Array[String] */;
+val* var_15 /* var : Array[String] */;
+val* var16 /* : IndexedIterator[nullable Object] */;
+val* var_17 /* var : IndexedIterator[String] */;
+short int var18 /* : Bool */;
+val* var20 /* : nullable Object */;
 val* var_e /* var e: String */;
-var1 = NEW_array__Array(&type_array__Arraystring__String);
-((void (*)(val*))(var1->class->vft[COLOR_array__Array__init]))(var1) /* init on <var1:Array[String]>*/;
-CHECK_NEW_array__Array(var1);
+var1 = NEW_core__Array(&type_core__Array__core__String);
+{
+core___core__Array___core__kernel__Object__init(var1); /* Direct call array#Array#init on <var1:Array[String]>*/
+}
 var_errors = var1;
-var2 = self->attrs[COLOR_opts__OptionContext___errors].val; /* _errors on <self:OptionContext> */
-if (var2 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _errors", "lib/opts.nit", 335);
-exit(1);
-}
-((void (*)(val*, val*))(var_errors->class->vft[COLOR_abstract_collection__SimpleCollection__add_all]))(var_errors, var2) /* add_all on <var_errors:Array[String]>*/;
-var3 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
-if (var3 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute _options", "lib/opts.nit", 337);
-exit(1);
-}
-var4 = ((val* (*)(val*))(var3->class->vft[COLOR_abstract_collection__Collection__iterator]))(var3) /* iterator on <var3:Array[Option]>*/;
+{
+{ /* Inline opts#OptionContext#context_errors (self) on <self:OptionContext> */
+var4 = self->attrs[COLOR_opts__OptionContext___context_errors].val; /* _context_errors on <self:OptionContext> */
+if (unlikely(var4 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _context_errors");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 283);
+fatal_exit(1);
+}
+var2 = var4;
+RET_LABEL3:(void)0;
+}
+}
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add_all(var_errors, var2); /* Direct call array#Array#add_all on <var_errors:Array[String]>*/
+}
+{
+{ /* Inline opts#OptionContext#options (self) on <self:OptionContext> */
+var7 = self->attrs[COLOR_opts__OptionContext___options].val; /* _options on <self:OptionContext> */
+if (unlikely(var7 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _options");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 277);
+fatal_exit(1);
+}
+var5 = var7;
+RET_LABEL6:(void)0;
+}
+}
+var_ = var5;
+{
+var8 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_);
+}
+var_9 = var8;
 for(;;) {
-var5 = ((short int (*)(val*))(var4->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var4) /* is_ok on <var4:Iterator[nullable Object]>*/;
-if(!var5) break;
-var6 = ((val* (*)(val*))(var4->class->vft[COLOR_abstract_collection__Iterator__item]))(var4) /* item on <var4:Iterator[nullable Object]>*/;
-var_o = var6;
-var7 = ((val* (*)(val*))(var_o->class->vft[COLOR_opts__Option__errors]))(var_o) /* errors on <var_o:Option>*/;
-var8 = ((val* (*)(val*))(var7->class->vft[COLOR_abstract_collection__Collection__iterator]))(var7) /* iterator on <var7:Array[String]>*/;
+{
+var10 = ((short int(*)(val* self))((((long)var_9&3)?class_info[((long)var_9&3)]:var_9->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_9); /* is_ok on <var_9:IndexedIterator[Option]>*/
+}
+if (var10){
+} else {
+goto BREAK_label;
+}
+{
+var11 = ((val*(*)(val* self))((((long)var_9&3)?class_info[((long)var_9&3)]:var_9->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_9); /* item on <var_9:IndexedIterator[Option]>*/
+}
+var_o = var11;
+{
+{ /* Inline opts#Option#errors (var_o) on <var_o:Option> */
+var14 = var_o->attrs[COLOR_opts__Option___errors].val; /* _errors on <var_o:Option> */
+if (unlikely(var14 == NULL)) {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _errors");
+PRINT_ERROR(" (%s:%d)\n", FILE_opts, 28);
+fatal_exit(1);
+}
+var12 = var14;
+RET_LABEL13:(void)0;
+}
+}
+var_15 = var12;
+{
+var16 = core___core__AbstractArrayRead___core__abstract_collection__Collection__iterator(var_15);
+}
+var_17 = var16;
 for(;;) {
-var9 = ((short int (*)(val*))(var8->class->vft[COLOR_abstract_collection__Iterator__is_ok]))(var8) /* is_ok on <var8:Iterator[nullable Object]>*/;
-if(!var9) break;
-var10 = ((val* (*)(val*))(var8->class->vft[COLOR_abstract_collection__Iterator__item]))(var8) /* item on <var8:Iterator[nullable Object]>*/;
-var_e = var10;
-((void (*)(val*, val*))(var_errors->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_errors, var_e) /* add on <var_errors:Array[String]>*/;
-CONTINUE_label: (void)0;
-((void (*)(val*))(var8->class->vft[COLOR_abstract_collection__Iterator__next]))(var8) /* next on <var8:Iterator[nullable Object]>*/;
+{
+var18 = ((short int(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_17); /* is_ok on <var_17:IndexedIterator[String]>*/
+}
+if (var18){
+} else {
+goto BREAK_label19;
+}
+{
+var20 = ((val*(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_17); /* item on <var_17:IndexedIterator[String]>*/
+}
+var_e = var20;
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add(var_errors, var_e); /* Direct call array#Array#add on <var_errors:Array[String]>*/
+}
+{
+((void(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_17); /* next on <var_17:IndexedIterator[String]>*/
+}
+}
+BREAK_label19: (void)0;
+{
+((void(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_17); /* finish on <var_17:IndexedIterator[String]>*/
+}
+{
+((void(*)(val* self))((((long)var_9&3)?class_info[((long)var_9&3)]:var_9->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_9); /* next on <var_9:IndexedIterator[Option]>*/
+}
 }
 BREAK_label: (void)0;
-CONTINUE_label11: (void)0;
-((void (*)(val*))(var4->class->vft[COLOR_abstract_collection__Iterator__next]))(var4) /* next on <var4:Iterator[nullable Object]>*/;
+{
+((void(*)(val* self))((((long)var_9&3)?class_info[((long)var_9&3)]:var_9->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_9); /* finish on <var_9:IndexedIterator[Option]>*/
 }
-BREAK_label11: (void)0;
 var = var_errors;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method opts#OptionContext#get_errors for (self: Object): Array[String] */
-val* VIRTUAL_opts__OptionContext__get_errors(val* self) {
-val* var /* : Array[String] */;
-val* var1 /* : Array[String] */;
-var1 = opts__OptionContext__get_errors(self);
-var = var1;
-RET_LABEL:;
-return var;
-}