# Separate compilation of a Nit program with generic type erasure
module separate_erasure_compiler
+intrude import separate_compiler
-import separate_compiler
-intrude import coloring
-
+# Add separate erased compiler specific options
redef class ToolContext
# --erasure
var opt_erasure: OptionBool = new OptionBool("Erase generic types", "--erasure")
+ # --rta
+ var opt_rta = new OptionBool("Activate RTA (implicit with --global and --separate)", "--rta")
+ # --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, opt_rta)
+ end
+
+ var erasure_compiler_phase = new ErasureCompilerPhase(self, null)
+end
+
+class ErasureCompilerPhase
+ super Phase
+ redef fun process_mainmodule(mainmodule, given_mmodules) do
+ if not toolcontext.opt_erasure.value then return
+
+ var modelbuilder = toolcontext.modelbuilder
+ var analysis = null
+ if toolcontext.opt_rta.value then
+ analysis = modelbuilder.do_rapid_type_analysis(mainmodule)
+ end
+ modelbuilder.run_separate_erasure_compiler(mainmodule, analysis)
end
end
redef class ModelBuilder
- fun run_separate_erasure_compiler(mainmodule: MModule, runtime_type_analysis: RapidTypeAnalysis)
+ fun run_separate_erasure_compiler(mainmodule: MModule, runtime_type_analysis: nullable RapidTypeAnalysis)
do
var time0 = get_time
- 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;")
+ self.toolcontext.info("*** GENERATING C ***", 1)
- # The main function of the C
- compiler.compile_main_function
+ var compiler = new SeparateErasureCompiler(mainmodule, self, runtime_type_analysis)
+ compiler.compile_header
# compile class structures
+ self.toolcontext.info("Property coloring", 2)
+ compiler.new_file("{mainmodule.name}.tables")
+ compiler.do_property_coloring
for m in mainmodule.in_importation.greaters do
for mclass in m.intro_mclasses do
compiler.compile_class_to_c(mclass)
end
end
+ compiler.compile_color_consts(compiler.vt_colors)
+
+ # The main function of the C
+ compiler.new_file("{mainmodule.name}.main")
+ compiler.compile_nitni_global_ref_functions
+ compiler.compile_main_function
# compile methods
for m in mainmodule.in_importation.greaters do
+ self.toolcontext.info("Generate C for module {m}", 2)
+ compiler.new_file("{m.name}.sep")
compiler.compile_module_to_c(m)
end
+ compiler.display_stats
+
+ var time1 = get_time
+ self.toolcontext.info("*** END GENERATING C: {time1-time0} ***", 2)
write_and_make(compiler)
end
end
class SeparateErasureCompiler
super SeparateCompiler
- private var class_ids: HashMap[MClass, Int] = new HashMap[MClass, Int]
- private var class_tables: nullable Map[MClass, Array[nullable MClass]] = null
-
- init(mainmodule: MModule, runtime_type_analysis: RapidTypeAnalysis, mmbuilder: ModelBuilder) do
- # 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)
+ private var class_ids: Map[MClass, Int]
+ private var class_colors: Map[MClass, Int]
+ protected var vt_colors: Map[MVirtualTypeProp, Int]
- # 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
+ init(mainmodule: MModule, mmbuilder: ModelBuilder, runtime_type_analysis: nullable RapidTypeAnalysis) do
+ super
- # set type unique id
- for mclass in class_colors.keys do
- self.class_ids[mclass] = self.class_ids.length
+ # Class coloring
+ var poset = mainmodule.flatten_mclass_hierarchy
+ var mclasses = new HashSet[MClass].from(poset)
+ var colorer = new POSetColorer[MClass]
+ colorer.colorize(poset)
+ class_ids = colorer.ids
+ class_colors = colorer.colors
+ class_tables = self.build_class_typing_tables(mclasses)
+
+ # lookup vt to build layout with
+ var vts = new HashMap[MClass, Set[MVirtualTypeProp]]
+ for mclass in mclasses do
+ vts[mclass] = new HashSet[MVirtualTypeProp]
+ for mprop in self.mainmodule.properties(mclass) do
+ if mprop isa MVirtualTypeProp then
+ vts[mclass].add(mprop)
+ end
+ end
end
- # for the class_name and output_class_name methods
- self.compile_class_names
+ # vt coloration
+ var vt_colorer = new POSetBucketsColorer[MClass, MVirtualTypeProp](poset, colorer.conflicts)
+ vt_colors = vt_colorer.colorize(vts)
+ vt_tables = build_vt_tables(mclasses)
end
- 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
+ fun build_vt_tables(mclasses: Set[MClass]): Map[MClass, Array[nullable MPropDef]] do
+ var tables = new HashMap[MClass, Array[nullable MPropDef]]
+ for mclass in mclasses do
+ var table = new Array[nullable MPropDef]
+ # first, fill table from parents by reverse linearization order
+ var parents = new Array[MClass]
+ if mainmodule.flatten_mclass_hierarchy.has(mclass) then
+ parents = mclass.in_hierarchy(mainmodule).greaters.to_a
+ self.mainmodule.linearize_mclasses(parents)
+ end
+ for parent in parents do
+ if parent == mclass then continue
+ for mproperty in self.mainmodule.properties(parent) do
+ if not mproperty isa MVirtualTypeProp then continue
+ var color = vt_colors[mproperty]
+ if table.length <= color then
+ for i in [table.length .. color[ do
+ table[i] = null
+ end
+ end
+ for mpropdef in mproperty.mpropdefs do
+ if mpropdef.mclassdef.mclass == parent then
+ table[color] = mpropdef
+ end
+ end
+ end
+ end
+
+ # then override with local properties
+ for mproperty in self.mainmodule.properties(mclass) do
+ if not mproperty isa MVirtualTypeProp then continue
+ var color = vt_colors[mproperty]
+ if table.length <= color then
+ for i in [table.length .. color[ do
+ table[i] = null
+ end
+ end
+ for mpropdef in mproperty.mpropdefs do
+ if mpropdef.mclassdef.mclass == mclass then
+ table[color] = mpropdef
+ end
+ end
end
- type_array[i] = t
+ tables[mclass] = table
end
+ return tables
+ 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 */")
- else
- v.add("\"{t}\",")
+ # Build class tables
+ fun build_class_typing_tables(mclasses: Set[MClass]): Map[MClass, Array[nullable MClass]] do
+ var tables = new HashMap[MClass, Array[nullable MClass]]
+ for mclass in mclasses do
+ var table = new Array[nullable MClass]
+ var supers = new Array[MClass]
+ if mainmodule.flatten_mclass_hierarchy.has(mclass) then
+ supers = mclass.in_hierarchy(mainmodule).greaters.to_a
end
+ for sup in supers do
+ var color = class_colors[sup]
+ if table.length <= color then
+ for i in [table.length .. color[ do
+ table[i] = null
+ end
+ end
+ table[color] = sup
+ end
+ tables[mclass] = table
end
- v.add("\};")
+ return tables
+ 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; const struct vts_table *vts_table; const struct type_table *type_table; nitmethod_t vft[]; \}; /* general C type representing a Nit class. */")
+ self.header.add_decl("struct type_table \{ int size; int table[]; \}; /* colorized type table. */")
+ self.header.add_decl("struct vts_entry \{ short int is_nullable; const struct class *class; \}; /* link (nullable or not) between the vts and is bound. */")
+ self.header.add_decl("struct vts_table \{ int dummy; const struct vts_entry vts[]; \}; /* vts list of a C type representation. */")
+ self.header.add_decl("typedef struct instance \{ const struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
end
redef fun compile_class_to_c(mclass: MClass)
do
var mtype = mclass.intro.bound_mtype
var c_name = mclass.c_name
+ var c_instance_name = mclass.c_instance_name
var vft = self.method_tables[mclass]
var attrs = self.attr_tables[mclass]
var class_table = self.class_tables[mclass]
var v = self.new_visitor
+ var rta = runtime_type_analysis
+ var is_dead = mclass.kind == abstract_kind or mclass.kind == interface_kind
+ if not is_dead and rta != null and not rta.live_classes.has(mclass) and mtype.ctype == "val*" and mclass.name != "NativeArray" then
+ is_dead = true
+ end
+
v.add_decl("/* runtime class {c_name} */")
- var idnum = classids.length
- var idname = "ID_" + c_name
- self.classids[mtype] = idname
- #self.header.add_decl("#define {idname} {idnum} /* {c_name} */")
-
- 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("int color;")
- self.header.add_decl("struct type_table *type_table;")
- self.header.add_decl("nitmethod_t vft[{vft.length}];")
- self.header.add_decl("\};")
+
+ self.provide_declaration("class_{c_name}", "extern const struct class class_{c_name};")
+ v.add_decl("extern const struct type_table type_table_{c_name};")
# Build class vft
- v.add_decl("const struct class_{c_name} class_{c_name} = \{")
- v.add_decl("{self.class_ids[mclass]},")
- v.add_decl("{self.class_colors[mclass]},")
- v.add_decl("(struct type_table*) &type_table_{c_name},")
- v.add_decl("\{")
- for i in [0 .. vft.length[ do
- var mpropdef = vft[i]
- if mpropdef == null then
- v.add_decl("NULL, /* empty */")
+ v.add_decl("const struct class class_{c_name} = \{")
+ v.add_decl("{class_ids[mclass]},")
+ v.add_decl("\"{mclass.name}\", /* class_name_string */")
+ v.add_decl("{self.box_kind_of(mclass)}, /* box_kind */")
+ v.add_decl("{class_colors[mclass]},")
+ if not is_dead then
+ if build_class_vts_table(mclass) then
+ v.require_declaration("vts_table_{c_name}")
+ v.add_decl("&vts_table_{c_name},")
else
- if true or mpropdef.mclassdef.bound_mtype.ctype != "val*" then
- v.add_decl("(nitmethod_t)VIRTUAL_{mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
+ v.add_decl("NULL,")
+ end
+ v.add_decl("&type_table_{c_name},")
+ v.add_decl("\{")
+ for i in [0 .. vft.length[ do
+ var mpropdef = vft[i]
+ if mpropdef == null then
+ v.add_decl("NULL, /* empty */")
else
- v.add_decl("(nitmethod_t){mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
+ assert mpropdef isa MMethodDef
+ if rta != null and not rta.live_methoddefs.has(mpropdef) then
+ v.add_decl("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
+ continue
+ end
+ if true or mpropdef.mclassdef.bound_mtype.ctype != "val*" then
+ v.require_declaration("VIRTUAL_{mpropdef.c_name}")
+ v.add_decl("(nitmethod_t)VIRTUAL_{mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
+ else
+ v.require_declaration("{mpropdef.c_name}")
+ v.add_decl("(nitmethod_t){mpropdef.c_name}, /* pointer to {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
+ end
end
end
+ v.add_decl("\}")
end
- v.add_decl("\}")
v.add_decl("\};")
# 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} \{")
- self.header.add_decl("int size;")
- self.header.add_decl("int table[{class_table.length}];")
- self.header.add_decl("\};")
- v.add_decl("const struct type_table_{c_name} type_table_{c_name} = \{")
+ v.add_decl("const struct type_table type_table_{c_name} = \{")
v.add_decl("{class_table.length},")
v.add_decl("\{")
for msuper in class_table do
v.add_decl("\}")
v.add_decl("\};")
- #Build instance struct
if mtype.ctype != "val*" then
- self.header.add_decl("struct instance_{c_name} \{")
- self.header.add_decl("const struct class *class;")
- self.header.add_decl("{mtype.ctype} value;")
- self.header.add_decl("\};")
+ if mtype.mclass.name == "Pointer" or mtype.mclass.kind != extern_kind then
+ #Build instance struct
+ self.header.add_decl("struct instance_{c_instance_name} \{")
+ self.header.add_decl("const struct class *class;")
+ self.header.add_decl("{mtype.ctype} value;")
+ self.header.add_decl("\};")
+ end
- self.header.add_decl("val* BOX_{c_name}({mtype.ctype});")
+ #Build BOX
+ self.provide_declaration("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype});")
v.add_decl("/* allocate {mtype} */")
v.add_decl("val* BOX_{mtype.c_name}({mtype.ctype} value) \{")
- v.add("struct instance_{c_name}*res = GC_MALLOC(sizeof(struct instance_{c_name}));")
- v.add("res->class = (struct class*) &class_{c_name};")
+ v.add("struct instance_{c_instance_name}*res = nit_alloc(sizeof(struct instance_{c_instance_name}));")
+ v.require_declaration("class_{c_name}")
+ v.add("res->class = &class_{c_name};")
v.add("res->value = value;")
v.add("return (val*)res;")
v.add("\}")
return
- end
+ else if mclass.name == "NativeArray" then
+ #Build instance struct
+ self.header.add_decl("struct instance_{c_name} \{")
+ self.header.add_decl("const struct class *class;")
+ self.header.add_decl("int length;")
+ self.header.add_decl("val* values[];")
+ self.header.add_decl("\};")
- var is_native_array = mclass.name == "NativeArray"
+ #Build NEW
+ self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(int length);")
+ v.add_decl("/* allocate {mtype} */")
+ v.add_decl("{mtype.ctype} NEW_{c_name}(int length) \{")
+ var res = v.get_name("self")
+ v.add_decl("struct instance_{c_name} *{res};")
+ var mtype_elt = mtype.arguments.first
+ v.add("{res} = nit_alloc(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
+ v.require_declaration("class_{c_name}")
+ v.add("{res}->class = &class_{c_name};")
+ v.add("{res}->length = length;")
+ v.add("return (val*){res};")
+ v.add("\}")
+ return
+ end
- var sig
- if is_native_array then
- sig = "int length"
+ #Build NEW
+ self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(void);")
+ v.add_decl("/* allocate {mtype} */")
+ v.add_decl("{mtype.ctype} NEW_{c_name}(void) \{")
+ if is_dead then
+ v.add_abort("{mclass} is DEAD")
else
- sig = ""
- end
- #Build instance struct
- #extern const struct instance_array__NativeArray instance_array__NativeArray;
- self.header.add_decl("struct instance_{c_name} \{")
- self.header.add_decl("const struct class *class;")
- self.header.add_decl("nitattribute_t attrs[{attrs.length}];")
- if is_native_array then
- # NativeArrays are just a instance header followed by an array of values
- self.header.add_decl("val* values[0];")
+ var res = v.new_named_var(mtype, "self")
+ res.is_exact = true
+ v.add("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
+ v.require_declaration("class_{c_name}")
+ v.add("{res}->class = &class_{c_name};")
+ self.generate_init_attr(v, res, mtype)
+ v.set_finalizer res
+ v.add("return {res};")
end
- self.header.add_decl("\};")
+ v.add("\}")
+ 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("{mtype.ctype} NEW_{c_name}({sig});")
- v.add_decl("/* allocate {mtype} */")
- v.add_decl("{mtype.ctype} NEW_{c_name}({sig}) \{")
- var res = v.new_named_var(mtype, "self")
- res.is_exact = true
- if is_native_array then
- var mtype_elt = mtype.arguments.first
- v.add("{res} = GC_MALLOC(sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype}));")
- else
- v.add("{res} = GC_MALLOC(sizeof(struct instance_{c_name}));")
- 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.provide_declaration("vts_table_{mclass.c_name}", "extern const struct vts_table vts_table_{mclass.c_name};")
+
+ var v = new_visitor
+ v.add_decl("const struct vts_table vts_table_{mclass.c_name} = \{")
+ v.add_decl("0, /* dummy */")
+ 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.as(MVirtualTypeDef).bound)
+ while bound isa MNullableType do
+ bound = retrieve_vt_bound(mclass.intro.bound_mtype, bound.mtype)
+ is_null = 1
end
+ var vtclass = bound.as(MClassType).mclass
+ v.require_declaration("class_{vtclass.c_name}")
+ v.add_decl("\{{is_null}, &class_{vtclass.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)
+
+ # Stats
+
+ private var class_tables: Map[MClass, Array[nullable MClass]]
+ private var vt_tables: Map[MClass, Array[nullable MPropDef]]
+
+ redef fun display_sizes
+ do
+ print "# size of subtyping tables"
+ print "\ttotal \tholes"
+ var total = 0
+ var holes = 0
+ for t, table in class_tables do
+ total += table.length
+ for e in table do if e == null then holes += 1
+ end
+ print "\t{total}\t{holes}"
+
+ print "# size of resolution tables"
+ print "\ttotal \tholes"
+ total = 0
+ holes = 0
+ for t, table in vt_tables do
+ total += table.length
+ for e in table do if e == null then holes += 1
+ end
+ print "\t{total}\t{holes}"
+
+ print "# size of methods tables"
+ print "\ttotal \tholes"
+ total = 0
+ holes = 0
+ for t, table in method_tables do
+ total += table.length
+ for e in table do if e == null then holes += 1
+ end
+ print "\t{total}\t{holes}"
+
+ print "# size of attributes tables"
+ print "\ttotal \tholes"
+ total = 0
+ holes = 0
+ for t, table in attr_tables do
+ total += table.length
+ for e in table do if e == null then holes += 1
+ end
+ print "\t{total}\t{holes}"
+ end
end
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("PRINT_ERROR(\"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
+ self.require_declaration("NEW_{mtype.mclass.c_name}")
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")
var idtype = self.get_name("idtype")
self.add_decl("int {idtype};")
- var maybe_null = false
+ var maybe_null = self.maybe_null(value)
+ var accept_null = "0"
if mtype isa MNullableType then
mtype = mtype.mtype
- maybe_null = true
+ accept_null = "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
- 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
+ accept_null = "1"
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->"
else
var mclass = value.mtype.as(MClassType).mclass
- type_table = "type_table_{mclass.c_name}"
+ self.require_declaration("class_{mclass.c_name}")
+ class_ptr = "class_{mclass.c_name}."
end
if mtype isa MClassType then
+ self.require_declaration("class_{mtype.mclass.c_name}")
self.add("{cltype} = class_{mtype.mclass.c_name}.color;")
self.add("{idtype} = class_{mtype.mclass.c_name}.id;")
+ 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
+ self.require_declaration("class_{mclass.c_name}")
+ recv_ptr = "class_{mclass.c_name}."
+ end
+ var entry = self.get_name("entry")
+ self.add("struct vts_entry {entry};")
+ self.require_declaration(mtype.mproperty.const_color)
+ self.add("{entry} = {recv_ptr}vts_table->vts[{mtype.mproperty.const_color}];")
+ self.add("{cltype} = {entry}.class->color;")
+ self.add("{idtype} = {entry}.class->id;")
+ if maybe_null and accept_null == "0" then
+ var is_nullable = self.get_name("is_nullable")
+ self.add_decl("short int {is_nullable};")
+ self.add("{is_nullable} = {entry}.is_nullable;")
+ accept_null = is_nullable.to_s
+ 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
+ # check color is in table
if maybe_null then
- s = "{value} == NULL ||"
- else
- s = "{value} != NULL &&"
+ self.add("if({value} == NULL) \{")
+ self.add("{res} = {accept_null};")
+ self.add("\} else \{")
end
- # check color is in table
- self.add("if({value} != NULL && {cltype} >= {type_table}->size) \{")
+ 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("\}")
+ if maybe_null then
+ self.add("\}")
+ end
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.require_declaration("class_{value.mtype.c_name}")
+ self.add "{res} = class_{value.mtype.c_name}.name;"
+ end
return res
end
- redef fun array_instance(array, elttype)
+ redef fun native_array_instance(elttype, length)
do
var nclass = self.get_class("NativeArray")
- elttype = self.anchor(elttype)
- var arraytype = self.get_class("Array").get_mtype([elttype])
- var res = self.init_instance(arraytype)
- self.add("\{ /* {res} = array_instance Array[{elttype}] */")
- var nat = self.new_var(self.get_class("NativeArray").get_mtype([elttype]))
- nat.is_exact = true
- self.add("{nat} = NEW_{nclass.c_name}({array.length});")
- for i in [0..array.length[ do
- var r = self.autobox(array[i], self.object_type)
- self.add("((struct instance_{nclass.c_name}*){nat})->values[{i}] = (val*) {r};")
- 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.add("\}")
+ var mtype = nclass.get_mtype([elttype])
+ var res = self.new_var(mtype)
+ res.is_exact = true
+ self.require_declaration("NEW_{nclass.c_name}")
+ self.add("{res} = NEW_{nclass.c_name}({length});")
return res
end
redef fun calloc_array(ret_type, arguments)
do
var ret = ret_type.as(MClassType)
+ self.require_declaration("NEW_{ret.mclass.c_name}")
self.ret(self.new_expr("NEW_{ret.mclass.c_name}({arguments[1]})", ret_type))
end
end
nitlanguage / nit.git / blobdiff