import separate_compiler
-intrude import coloring
redef class ToolContext
# --erasure
var opt_erasure: OptionBool = new OptionBool("Erase generic types", "--erasure")
+ # --no-check-erasure-cast
+ var opt_no_check_erasure_cast: OptionBool = new OptionBool("Disable implicit casts on unsafe return with erasure-typing policy (dangerous)", "--no-check-erasure-cast")
+
redef init
do
super
- self.option_context.add_option(self.opt_erasure)
+ self.option_context.add_option(self.opt_erasure, self.opt_no_check_erasure_cast)
end
end
self.toolcontext.info("*** COMPILING TO C ***", 1)
var compiler = new SeparateErasureCompiler(mainmodule, runtime_type_analysis, self)
- var v = compiler.header
- v.add_decl("#include <stdlib.h>")
- v.add_decl("#include <stdio.h>")
- v.add_decl("#include <string.h>")
- v.add_decl("#include <gc/gc.h>")
- v.add_decl("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
- v.add_decl("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
- v.add_decl("struct class \{ int id; int box_kind; int color; struct vts_table *vts_table; struct type_table *type_table; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
- v.add_decl("struct type_table \{ int size; int table[1]; \}; /* colorized type table. */")
- v.add_decl("struct vts_entry \{ short int is_nullable; struct class *class; \}; /* link (nullable or not) between the vts and is bound. */")
- v.add_decl("struct vts_table \{ struct vts_entry vts[1]; \}; /* vts list of a C type representation. */")
- v.add_decl("typedef struct \{ struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
- v.add_decl("extern const char const * class_names[];")
-
- # Declare global instances
- v.add_decl("extern int glob_argc;")
- v.add_decl("extern char **glob_argv;")
- v.add_decl("extern val *glob_sys;")
-
- # The main function of the C
- compiler.compile_main_function
+ compiler.compile_header
# compile class structures
+ compiler.new_file
for m in mainmodule.in_importation.greaters do
for mclass in m.intro_mclasses do
compiler.compile_class_to_c(mclass)
end
end
+ # The main function of the C
+ compiler.new_file
+ compiler.compile_main_function
+
# compile methods
for m in mainmodule.in_importation.greaters do
+ compiler.new_file
compiler.compile_module_to_c(m)
end
+ compiler.display_stats
+
write_and_make(compiler)
end
end
super SeparateCompiler
private var class_ids: HashMap[MClass, Int] = new HashMap[MClass, Int]
- private var class_tables: nullable Map[MClass, Array[nullable MClass]] = null
- private var class_vts_colors: Map[MVirtualTypeProp, Int]
- private var class_vts_tables: Map[MClass, Array[nullable MVirtualTypeDef]]
+ private var class_colors: Map[MClass, Int]
+ private var class_tables: Map[MClass, Array[nullable MClass]]
init(mainmodule: MModule, runtime_type_analysis: RapidTypeAnalysis, mmbuilder: ModelBuilder) do
- self.header = self.new_visitor
+ var mclasses = new HashSet[MClass]
+ mclasses.add_all(mmbuilder.model.mclasses)
+
# classes coloration
- var class_coloring = new ClassColoring(mainmodule)
- self.class_colors = class_coloring.colorize(mmbuilder.model.mclasses)
- self.class_tables = class_coloring.build_type_tables(mmbuilder.model.mclasses, class_colors)
-
- # methods coloration
- var method_coloring = new MethodColoring(class_coloring)
- self.method_colors = method_coloring.colorize
- self.method_tables = method_coloring.build_property_tables
-
- # attributes coloration
- var attribute_coloring = new AttributeColoring(class_coloring)
- self.attr_colors = attribute_coloring.colorize
- self.attr_tables = attribute_coloring.build_property_tables
-
- # vt coloration
- var vt_coloring = new VTColoring(class_coloring)
- self.class_vts_colors = vt_coloring.colorize
- self.class_vts_tables = vt_coloring.build_property_tables
-
- # set type unique id
- for mclass in class_colors.keys do
- self.class_ids[mclass] = self.class_ids.length
- end
+ if modelbuilder.toolcontext.opt_phmod_typing.value then
+ # set type unique id
+ for mclass in mclasses do
+ self.class_ids[mclass] = self.class_ids.length + 1
+ end
- # for the class_name and output_class_name methods
- self.compile_class_names
- self.compile_box_kinds
- end
+ var class_coloring = new ClassModPerfectHashing(mainmodule)
+ self.class_colors = class_coloring.compute_masks(mclasses, class_ids)
+ self.class_tables = class_coloring.hash_type_tables(mclasses, class_ids, class_colors)
- redef fun compile_class_names do
- # Build type names table
- var type_array = new Array[nullable MClass]
- for t, i in class_ids do
- if i >= type_array.length then
- type_array[i] = null
+ self.header.add_decl("#define HASH(mask, id) ((mask)%(id))")
+ else if modelbuilder.toolcontext.opt_phand_typing.value then
+ # set type unique id
+ for mclass in mclasses do
+ self.class_ids[mclass] = self.class_ids.length + 1
end
- type_array[i] = t
- end
- var v = self.new_visitor
- v.add("const char const * class_names[] = \{")
- for t in type_array do
- if t == null then
- v.add("NULL, /* empty */")
+ var class_coloring = new ClassAndPerfectHashing(mainmodule)
+ self.class_colors = class_coloring.compute_masks(mclasses, class_ids)
+ self.class_tables = class_coloring.hash_type_tables(mclasses, class_ids, class_colors)
+
+ self.header.add_decl("#define HASH(mask, id) ((mask)&(id))")
+ else
+ var class_coloring
+ if modelbuilder.toolcontext.opt_bm_typing.value then
+ class_coloring = new NaiveClassColoring(mainmodule)
else
- v.add("\"{t}\",")
+ class_coloring = new ClassColoring(mainmodule)
end
+ # set type unique id
+ for mclass in mclasses do
+ self.class_ids[mclass] = self.class_ids.length + 1
+ end
+ self.class_colors = class_coloring.colorize(modelbuilder.model.mclasses)
+ self.class_tables = class_coloring.build_type_tables(modelbuilder.model.mclasses, class_colors)
+ end
+ end
+
+ redef fun compile_header_structs do
+ self.header.add_decl("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
+ self.compile_header_attribute_structs
+ self.header.add_decl("struct class \{ int id; const char *name; int box_kind; int color; struct vts_table *vts_table; struct type_table *type_table; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
+ self.header.add_decl("struct type_table \{ int size; int table[1]; \}; /* colorized type table. */")
+ self.header.add_decl("struct vts_entry \{ short int is_nullable; struct class *class; \}; /* link (nullable or not) between the vts and is bound. */")
+
+ if modelbuilder.toolcontext.opt_phmod_typing.value or modelbuilder.toolcontext.opt_phand_typing.value then
+ self.header.add_decl("struct vts_table \{ int mask; struct vts_entry vts[1]; \}; /* vts list of a C type representation. */")
+ else
+ self.header.add_decl("struct vts_table \{ struct vts_entry vts[1]; \}; /* vts list of a C type representation. */")
end
- v.add("\};")
+
+ self.header.add_decl("typedef struct val \{ struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
end
redef fun compile_class_to_c(mclass: MClass)
self.header.add_decl("extern const struct class_{c_name} class_{c_name};")
self.header.add_decl("struct class_{c_name} \{")
self.header.add_decl("int id;")
+ self.header.add_decl("const char *name;")
self.header.add_decl("int box_kind;")
self.header.add_decl("int color;")
self.header.add_decl("const struct vts_table *vts_table;")
self.header.add_decl("nitmethod_t vft[{vft.length}];")
self.header.add_decl("\};")
- # extern const struct vts_table_X vts_table_X
- self.header.add_decl("extern const struct vts_table_{c_name} vts_table_{c_name};")
- self.header.add_decl("struct vts_table_{c_name} \{")
- self.header.add_decl("struct vts_entry vts[{self.class_vts_tables[mclass].length}];")
- self.header.add_decl("\};")
-
# Build class vft
v.add_decl("const struct class_{c_name} class_{c_name} = \{")
v.add_decl("{self.class_ids[mclass]},")
+ v.add_decl("\"{mclass.name}\", /* class_name_string */")
v.add_decl("{self.box_kind_of(mclass)}, /* box_kind */")
v.add_decl("{self.class_colors[mclass]},")
- v.add_decl("(const struct vts_table*) &vts_table_{c_name},")
+ if build_class_vts_table(mclass) then
+ v.add_decl("(const struct vts_table*) &vts_table_{c_name},")
+ else
+ v.add_decl("NULL,")
+ end
v.add_decl("(struct type_table*) &type_table_{c_name},")
v.add_decl("\{")
for i in [0 .. vft.length[ do
v.add_decl("\}")
v.add_decl("\};")
- build_class_vts_table(mclass, v.as(SeparateErasureCompilerVisitor))
-
# Build class type table
self.header.add_decl("extern const struct type_table_{c_name} type_table_{c_name};")
self.header.add_decl("struct type_table_{c_name} \{")
generate_check_init_instance(mtype)
end
- private fun build_class_vts_table(mclass: MClass, v: SeparateCompilerVisitor) do
+ private fun build_class_vts_table(mclass: MClass): Bool do
+ if self.vt_tables[mclass].is_empty then return false
+
+ self.header.add_decl("extern const struct vts_table_{mclass.c_name} vts_table_{mclass.c_name};")
+ self.header.add_decl("struct vts_table_{mclass.c_name} \{")
+ if modelbuilder.toolcontext.opt_phmod_typing.value or modelbuilder.toolcontext.opt_phand_typing.value then
+ self.header.add_decl("int mask;")
+ end
+ self.header.add_decl("struct vts_entry vts[{self.vt_tables[mclass].length}];")
+ self.header.add_decl("\};")
+
+ var v = new_visitor
v.add_decl("const struct vts_table_{mclass.c_name} vts_table_{mclass.c_name} = \{")
+ if modelbuilder.toolcontext.opt_phmod_typing.value or modelbuilder.toolcontext.opt_phand_typing.value then
+ v.add_decl("{vt_masks[mclass]},")
+ end
v.add_decl("\{")
- for vt in self.class_vts_tables[mclass] do
+ for vt in self.vt_tables[mclass] do
if vt == null then
- v.add_decl("NULL, /* empty */")
+ v.add_decl("\{-1, NULL\}, /* empty */")
else
var is_null = 0
var bound = retrieve_vt_bound(mclass.intro.bound_mtype, vt.bound)
end
v.add_decl("\},")
v.add_decl("\};")
+ return true
end
private fun retrieve_vt_bound(anchor: MClassType, mtype: nullable MType): MType do
class SeparateErasureCompilerVisitor
super SeparateCompilerVisitor
+ redef fun compile_callsite(callsite, arguments)
+ do
+ var res = super
+ if callsite.erasure_cast and not self.compiler.as(SeparateErasureCompiler).modelbuilder.toolcontext.opt_no_check_erasure_cast.value then
+ assert res != null
+ var mtype = callsite.msignature.return_mtype
+ assert mtype != null
+ self.add("/* Erasure cast for return {res} isa {mtype} */")
+ var cond = self.type_test(res, mtype, "erasure")
+ self.add("if (!{cond}) \{")
+ #var x = self.class_name_string(res)
+ #var y = self.class_name_string(arguments.first)
+ #self.add("fprintf(stderr, \"Erasure cast: expected {mtype} (self is %s), got %s for {res}\\n\", {y}, {x});")
+ self.add_abort("Cast failed")
+ self.add("\}")
+ end
+ return res
+ end
+
redef fun init_instance(mtype)
do
return self.new_expr("NEW_{mtype.mclass.c_name}()", mtype)
end
- redef fun type_test(value, mtype)
+ redef fun type_test(value, mtype, tag)
do
self.add("/* type test for {value.inspect} isa {mtype} */")
if value.mcasttype.is_subtype(self.frame.mpropdef.mclassdef.mmodule, self.frame.mpropdef.mclassdef.bound_mtype, mtype) then
self.add("{res} = 1; /* easy {value.inspect} isa {mtype}*/")
+ if compiler.modelbuilder.toolcontext.opt_typing_test_metrics.value then
+ self.compiler.count_type_test_skipped[tag] += 1
+ self.add("count_type_test_skipped_{tag}++;")
+ end
return res
end
if maybe_null == 0 then
self.add("{is_nullable} = 0;")
end
+ if compiler.modelbuilder.toolcontext.opt_typing_test_metrics.value then
+ self.compiler.count_type_test_resolved[tag] += 1
+ self.add("count_type_test_resolved_{tag}++;")
+ end
else if mtype isa MVirtualType then
- var vtcolor = compiler.as(SeparateErasureCompiler).class_vts_colors[mtype.mproperty.as(MVirtualTypeProp)]
var recv = self.frame.arguments.first
- var recv_boxed = self.autobox(recv, self.object_type)
- self.add("{cltype} = {recv_boxed}->class->vts_table->vts[{vtcolor}].class->color;")
- self.add("{idtype} = {recv_boxed}->class->vts_table->vts[{vtcolor}].class->id;")
+ var recv_ptr
+ if recv.mtype.ctype == "val*" then
+ recv_ptr = "{recv}->class->"
+ else
+ var mclass = recv.mtype.as(MClassType).mclass
+ recv_ptr = "class_{mclass.c_name}."
+ end
+ var entry = self.get_name("entry")
+ self.add("struct vts_entry {entry};")
+ if compiler.modelbuilder.toolcontext.opt_phmod_typing.value or compiler.modelbuilder.toolcontext.opt_phand_typing.value then
+ self.add("{entry} = {recv_ptr}vts_table->vts[HASH({recv_ptr}vts_table->mask, {mtype.mproperty.const_color})];")
+ else
+ self.add("{entry} = {recv_ptr}vts_table->vts[{mtype.mproperty.const_color}];")
+ end
+ self.add("{cltype} = {entry}.class->color;")
+ self.add("{idtype} = {entry}.class->id;")
if maybe_null == 0 then
- self.add("{is_nullable} = {recv_boxed}->class->vts_table->vts[{vtcolor}].is_nullable;")
+ self.add("{is_nullable} = {entry}.is_nullable;")
+ end
+ if compiler.modelbuilder.toolcontext.opt_typing_test_metrics.value then
+ self.compiler.count_type_test_unresolved[tag] += 1
+ self.add("count_type_test_unresolved_{tag}++;")
end
else
self.debug("type_test({value.inspect}, {mtype})")
self.add("if({is_null}) \{")
self.add("{res} = {is_nullable};")
self.add("\} else \{")
+ if compiler.modelbuilder.toolcontext.opt_phmod_typing.value or compiler.modelbuilder.toolcontext.opt_phand_typing.value then
+ self.add("{cltype} = HASH({class_ptr}color, {idtype});")
+ end
self.add("if({cltype} >= {class_ptr}type_table->size) \{")
self.add("{res} = 0;")
self.add("\} else \{")
redef fun class_name_string(value)
do
var res = self.get_name("var_class_name")
- self.add_decl("const char *{res};")
- self.add("{res} = class_names[{value}->class->id];")
+ self.add_decl("const char* {res};")
+ if value.mtype.ctype == "val*" then
+ self.add "{res} = {value} == NULL ? \"null\" : {value}->class->name;"
+ else
+ self.add "{res} = class_{value.mtype.c_name}.name;"
+ end
return res
end
nitlanguage / nit.git / blobdiff