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

diff --git a/c_src/simple_misc_analysis.sep.1.c b/c_src/simple_misc_analysis.sep.1.c
index 5eac1ca..f178750 100644
--- a/c_src/simple_misc_analysis.sep.1.c
+++ b/c_src/simple_misc_analysis.sep.1.c
@@ -5,8 +5,9 @@ val* var /* : Phase */;
 val* var1 /* : Phase */;
 var1 = self->attrs[COLOR_simple_misc_analysis__ToolContext___64dsimple_misc_analysis_phase].val; /* @simple_misc_analysis_phase on <self:ToolContext> */
 if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute @simple_misc_analysis_phase", "src/simple_misc_analysis.nit", 29);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Uninitialized attribute @simple_misc_analysis_phase");
+fprintf(stderr, " (%s:%d)\n", "src/simple_misc_analysis.nit", 29);
+show_backtrace(1);
 }
 var = var1;
 RET_LABEL:;
@@ -53,7 +54,6 @@ val* var_v /* var v: SimpleMiscVisitor */;
 var_toolcontext = p0;
 var = NEW_simple_misc_analysis__SimpleMiscVisitor(&type_simple_misc_analysis__SimpleMiscVisitor);
 ((void (*)(val*, val*))(var->class->vft[COLOR_simple_misc_analysis__SimpleMiscVisitor__init]))(var, var_toolcontext) /* init on <var:SimpleMiscVisitor>*/;
-CHECK_NEW_simple_misc_analysis__SimpleMiscVisitor(var);
 var_v = var;
 ((void (*)(val*, val*))(var_v->class->vft[COLOR_parser_nodes__Visitor__enter_visit]))(var_v, self) /* enter_visit on <var_v:SimpleMiscVisitor>*/;
 RET_LABEL:;
@@ -109,8 +109,9 @@ val* var /* : ToolContext */;
 val* var1 /* : ToolContext */;
 var1 = self->attrs[COLOR_simple_misc_analysis__SimpleMiscVisitor___64dtoolcontext].val; /* @toolcontext on <self:SimpleMiscVisitor> */
 if (var1 == NULL) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Uninitialized attribute @toolcontext", "src/simple_misc_analysis.nit", 57);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Uninitialized attribute @toolcontext");
+fprintf(stderr, " (%s:%d)\n", "src/simple_misc_analysis.nit", 57);
+show_backtrace(1);
 }
 var = var1;
 RET_LABEL:;
@@ -488,6 +489,7 @@ short int var2 /* : Bool */;
 short int var4 /* : Bool */;
 int cltype;
 int idtype;
+const char* var_class_name;
 short int var5 /* : Bool */;
 static val* varonce;
 val* var6 /* : String */;
@@ -510,8 +512,10 @@ var1 = 0;
 /* <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);
+var_class_name = type_kernel__Int.name;
+fprintf(stderr, "Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+fprintf(stderr, " (%s:%d)\n", "lib/standard/kernel.nit", 267);
+show_backtrace(1);
 }
 var5 = var > var1;
 var2 = var5;