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.new_visitor
- compiler.header = v
- 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 color; 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("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_colors: Map[MClass, Int]
+ private var class_tables: Map[MClass, Array[nullable MClass]]
init(mainmodule: MModule, runtime_type_analysis: RapidTypeAnalysis, mmbuilder: ModelBuilder) do
+ 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
-
- # 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
- 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
- v.add("\};")
+ 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
+
+ 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("struct type_table *type_table;")
self.header.add_decl("nitmethod_t vft[{vft.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]},")
+ 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
end
v.add("{res}->class = (struct class*) &class_{c_name};")
- for cd in mtype.collect_mclassdefs(self.mainmodule)
- do
- var n = self.modelbuilder.mclassdef2nclassdef[cd]
- for npropdef in n.n_propdefs do
- if npropdef isa AAttrPropdef then
- npropdef.init_expr(v, res)
+ self.generate_init_attr(v, res, mtype)
+ v.add("return {res};")
+ v.add("\}")
+
+ generate_check_init_instance(mtype)
+ end
+
+ 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.vt_tables[mclass] do
+ if vt == null then
+ v.add_decl("\{-1, NULL\}, /* empty */")
+ else
+ var is_null = 0
+ var bound = retrieve_vt_bound(mclass.intro.bound_mtype, vt.bound)
+ while bound isa MNullableType do
+ bound = retrieve_vt_bound(mclass.intro.bound_mtype, bound.mtype)
+ is_null = 1
end
+ v.add_decl("\{{is_null}, (struct class*)&class_{bound.as(MClassType).mclass.c_name}\}, /* {vt} */")
end
end
- v.add("return {res};")
- v.add("\}")
+ v.add_decl("\},")
+ v.add_decl("\};")
+ return true
+ end
+
+ private fun retrieve_vt_bound(anchor: MClassType, mtype: nullable MType): MType do
+ if mtype == null then
+ print "NOT YET IMPLEMENTED: retrieve_vt_bound on null"
+ abort
+ end
+ if mtype isa MVirtualType then
+ return mtype.anchor_to(mainmodule, anchor)
+ else if mtype isa MParameterType then
+ return mtype.anchor_to(mainmodule, anchor)
+ else
+ return mtype
+ end
end
redef fun new_visitor do return new SeparateErasureCompilerVisitor(self)
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} */")
+
var res = self.new_var(bool_type)
var cltype = self.get_name("cltype")
self.add_decl("int {cltype};")
var idtype = self.get_name("idtype")
self.add_decl("int {idtype};")
+ var is_nullable = self.get_name("is_nullable")
+ self.add_decl("short int {is_nullable};")
+ var is_null = self.get_name("is_null")
+ self.add_decl("short int {is_null};")
- var maybe_null = false
+ var maybe_null = 0
if mtype isa MNullableType then
mtype = mtype.mtype
- maybe_null = true
+ maybe_null = 1
+ self.add("{is_nullable} = 1;")
end
if mtype isa MParameterType then
# Here we get the bound of the the formal type (eh, erasure...)
mtype = mtype.resolve_for(self.frame.mpropdef.mclassdef.bound_mtype, self.frame.mpropdef.mclassdef.bound_mtype, self.frame.mpropdef.mclassdef.mmodule, false)
if mtype isa MNullableType then
mtype = mtype.mtype
- maybe_null = true
+ maybe_null = 1
+ self.add("{is_nullable} = 1;")
end
end
if mtype isa MVirtualType then
# FIXME virtual types should not be erased but got from the class table of the current receiver (self.frame.arguments.first)
- mtype = mtype.resolve_for(self.frame.mpropdef.mclassdef.bound_mtype, self.frame.mpropdef.mclassdef.bound_mtype, self.frame.mpropdef.mclassdef.mmodule, true)
- if mtype isa MNullableType then
- mtype = mtype.mtype
- maybe_null = true
- end
+ #mtype = mtype.resolve_for(self.frame.mpropdef.mclassdef.bound_mtype, self.frame.mpropdef.mclassdef.bound_mtype, self.frame.mpropdef.mclassdef.mmodule, true)
+ #if mtype isa MNullableType then
+ # mtype = mtype.mtype
+ # maybe_null = true
+ #end
end
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
+ var class_ptr
var type_table
if value.mtype.ctype == "val*" then
- type_table = "{value}->class->type_table"
+ class_ptr = "{value}->class->"
+ self.add("{is_null} = {value} == NULL;")
else
var mclass = value.mtype.as(MClassType).mclass
- type_table = "type_table_{mclass.c_name}"
+ class_ptr = "class_{mclass.c_name}."
+ self.add("{is_null} = 0;")
end
if mtype isa MClassType then
self.add("{cltype} = class_{mtype.mclass.c_name}.color;")
self.add("{idtype} = class_{mtype.mclass.c_name}.id;")
+ 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 recv = self.frame.arguments.first
+ 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} = {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})")
abort
end
- var s: String
- if maybe_null then
- s = "{value} == NULL ||"
- else
- s = "{value} != NULL &&"
- end
# check color is in table
- self.add("if({value} != NULL && {cltype} >= {type_table}->size) \{")
+ 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 \{")
- self.add("{res} = {s} {type_table}->table[{cltype}] == {idtype};")
+ self.add("{res} = {class_ptr}type_table->table[{cltype}] == {idtype};")
+ self.add("\}")
self.add("\}")
return res
end
- redef fun class_name_string(value1)
+ redef fun class_name_string(value)
do
var res = self.get_name("var_class_name")
- self.add_decl("const char* {res} = class_names[self->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
end
var length = self.int_instance(array.length)
self.send(self.get_property("with_native", arraytype), [res, nat, length])
- self.check_init_instance(res)
+ self.check_init_instance(res, arraytype)
self.add("\}")
return res
end
nitlanguage / nit.git / blobdiff