# Separate compilation of a Nit program
module separate_compiler
+import abstract_compiler
+import layout_builders
+import rapid_type_analysis
-import global_compiler # TODO better separation of concerns
-import coloring
-
+# Add separate compiler specific options
redef class ToolContext
# --separate
var opt_separate: OptionBool = new OptionBool("Use separate compilation", "--separate")
-
# --no-inline-intern
var opt_no_inline_intern: OptionBool = new OptionBool("Do not inline call to intern methods", "--no-inline-intern")
-
+ # --no-union-attribute
+ var opt_no_union_attribute: OptionBool = new OptionBool("Put primitive attibutes in a box instead of an union", "--no-union-attribute")
+ # --no-shortcut-equate
+ var opt_no_shortcut_equate: OptionBool = new OptionBool("Always call == in a polymorphic way", "--no-shortcut-equal")
# --inline-coloring-numbers
var opt_inline_coloring_numbers: OptionBool = new OptionBool("Inline colors and ids", "--inline-coloring-numbers")
-
# --use-naive-coloring
- var opt_use_naive_coloring: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--use-naive-coloring")
-
+ var opt_bm_typing: OptionBool = new OptionBool("Colorize items incrementaly, used to simulate binary matrix typing", "--bm-typing")
# --use-mod-perfect-hashing
- var opt_use_mod_perfect_hashing: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--use-mod-perfect-hashing")
-
+ var opt_phmod_typing: OptionBool = new OptionBool("Replace coloration by perfect hashing (with mod operator)", "--phmod-typing")
# --use-and-perfect-hashing
- var opt_use_and_perfect_hashing: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--use-and-perfect-hashing")
+ var opt_phand_typing: OptionBool = new OptionBool("Replace coloration by perfect hashing (with and operator)", "--phand-typing")
+ # --tables-metrics
+ var opt_tables_metrics: OptionBool = new OptionBool("Enable static size measuring of tables used for vft, typing and resolution", "--tables-metrics")
redef init
do
super
self.option_context.add_option(self.opt_separate)
self.option_context.add_option(self.opt_no_inline_intern)
+ self.option_context.add_option(self.opt_no_union_attribute)
+ self.option_context.add_option(self.opt_no_shortcut_equate)
self.option_context.add_option(self.opt_inline_coloring_numbers)
- self.option_context.add_option(self.opt_use_naive_coloring)
- self.option_context.add_option(self.opt_use_mod_perfect_hashing)
- self.option_context.add_option(self.opt_use_and_perfect_hashing)
+ self.option_context.add_option(self.opt_bm_typing)
+ self.option_context.add_option(self.opt_phmod_typing)
+ self.option_context.add_option(self.opt_phand_typing)
+ self.option_context.add_option(self.opt_tables_metrics)
end
end
var time0 = get_time
self.toolcontext.info("*** COMPILING TO C ***", 1)
- var compiler = new SeparateCompiler(mainmodule, runtime_type_analysis, self)
+ var compiler = new SeparateCompiler(mainmodule, self, runtime_type_analysis)
+ compiler.compile_header
# compile class structures
for m in mainmodule.in_importation.greaters do
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
# compile live & cast type structures
+ compiler.new_file
var mtypes = compiler.do_type_coloring
for t in mtypes do
compiler.compile_type_to_c(t)
end
- # compile live generic types selection structures
- for mclass in model.mclasses do
- compiler.compile_live_gentype_to_c(mclass)
- end
+ compiler.display_stats
write_and_make(compiler)
end
# Singleton that store the knowledge about the separate compilation process
class SeparateCompiler
- super GlobalCompiler # TODO better separation of concerns
-
- private var undead_types: Set[MType] = new HashSet[MType]
- protected var typeids: HashMap[MType, Int] protected writable = new HashMap[MType, Int]
+ super AbstractCompiler
- private var type_colors: Map[MType, Int] = typeids
- private var type_tables: nullable Map[MType, Array[nullable MType]] = null
+ # The result of the RTA (used to know live types and methods)
+ var runtime_type_analysis: RapidTypeAnalysis
- private var livetypes_colors: nullable Map[MType, Int]
- private var livetypes_tables: nullable Map[MClass, Array[nullable Object]]
- private var livetypes_tables_sizes: nullable Map[MClass, Array[Int]]
-
- protected var class_coloring: ClassColoring
-
- protected var method_colors: Map[MMethod, Int]
- protected var method_tables: Map[MClass, Array[nullable MMethodDef]]
-
- protected var attr_colors: Map[MAttribute, Int]
- protected var attr_tables: Map[MClass, Array[nullable MAttributeDef]]
-
- protected var vt_colors: Map[MVirtualTypeProp, Int]
- protected var vt_tables: Map[MClass, Array[nullable MVirtualTypeDef]]
-
- private var ft_colors: nullable Map[MParameterType, Int]
- private var ft_tables: nullable Map[MClass, Array[nullable MParameterType]]
-
- init(mainmodule: MModule, runtime_type_analysis: RapidTypeAnalysis, mmbuilder: ModelBuilder) do
+ private var undead_types: Set[MType] = new HashSet[MType]
+ private var partial_types: Set[MType] = new HashSet[MType]
+ private var live_unresolved_types: Map[MClassDef, Set[MType]] = new HashMap[MClassDef, HashSet[MType]]
+
+ private var type_layout: nullable Layout[MType]
+ private var resolution_layout: nullable Layout[MType]
+ protected var method_layout: nullable Layout[MMethod]
+ protected var attr_layout: nullable Layout[MAttribute]
+
+ init(mainmodule: MModule, mmbuilder: ModelBuilder, runtime_type_analysis: RapidTypeAnalysis) do
+ super(mainmodule, mmbuilder)
+ self.header = new_visitor
+ self.runtime_type_analysis = runtime_type_analysis
self.do_property_coloring
self.compile_box_kinds
end
redef fun compile_header_structs do
self.header.add_decl("typedef void(*nitmethod_t)(void); /* general C type representing a Nit method. */")
- self.header.add_decl("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
+ self.compile_header_attribute_structs
self.header.add_decl("struct class \{ int box_kind; nitmethod_t vft[1]; \}; /* general C type representing a Nit class. */")
- self.header.add_decl("struct type \{ int id; int color; int livecolor; short int is_nullable; struct vts_table *vts_table; struct fts_table *fts_table; int table_size; int type_table[1]; \}; /* general C type representing a Nit type. */")
- self.header.add_decl("struct fts_table \{ struct type *fts[1]; \}; /* fts list of a C type representation. */")
- self.header.add_decl("struct vts_table \{ struct type *vts[1]; \}; /* vts list of a C type representation. */")
- self.header.add_decl("typedef struct \{ struct type *type; struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
- end
- redef fun compile_class_names do
- # Build type names table
- var type_array = new Array[nullable MType]
- for t, id in typeids do
- if id >= type_array.length then
- for i in [type_array.length..id[ do
- type_array[i] = null
- end
- end
- type_array[id] = t
+ # With resolution_table_table, all live type resolution are stored in a big table: resolution_table
+ self.header.add_decl("struct type \{ int id; const char *name; int color; short int is_nullable; struct types *resolution_table; int table_size; int type_table[1]; \}; /* general C type representing a Nit type. */")
+
+ if modelbuilder.toolcontext.opt_phmod_typing.value or modelbuilder.toolcontext.opt_phand_typing.value then
+ self.header.add_decl("struct types \{ int mask; struct type *types[1]; \}; /* a list types (used for vts, fts and unresolved lists). */")
+ else
+ self.header.add_decl("struct types \{ struct type *types[1]; \}; /* a list types (used for vts, fts and unresolved lists). */")
end
- var v = self.new_visitor
- self.header.add_decl("extern const char const * class_names[];")
- v.add("const char const * class_names[] = \{")
- for t in type_array do
- if t == null then
- v.add("NULL,")
- else
- v.add("\"{t}\",")
+ if modelbuilder.toolcontext.opt_phmod_typing.value then
+ self.header.add_decl("#define HASH(mask, id) ((mask)%(id))")
+ else if modelbuilder.toolcontext.opt_phand_typing.value then
+ self.header.add_decl("#define HASH(mask, id) ((mask)&(id))")
+ end
+
+ self.header.add_decl("typedef struct \{ struct type *type; struct class *class; nitattribute_t attrs[1]; \} val; /* general C type representing a Nit instance. */")
+ end
+
+ fun compile_header_attribute_structs
+ do
+ if modelbuilder.toolcontext.opt_no_union_attribute.value then
+ self.header.add_decl("typedef void* nitattribute_t; /* general C type representing a Nit attribute. */")
+ else
+ self.header.add_decl("typedef union \{")
+ self.header.add_decl("void* val;")
+ for c, v in self.box_kinds do
+ var t = c.mclass_type
+ self.header.add_decl("{t.ctype} {t.ctypename};")
end
+ self.header.add_decl("\} nitattribute_t; /* general C type representing a Nit attribute. */")
end
- v.add("\};")
end
fun compile_box_kinds
fun compile_color_consts(colors: Map[Object, Int]) do
for m, c in colors do
+ if color_consts_done.has(m) then continue
if m isa MProperty then
if modelbuilder.toolcontext.opt_inline_coloring_numbers.value then
self.header.add_decl("#define {m.const_color} {c}")
self.header.add("const int {m.const_color} = {c};")
end
end
+ color_consts_done.add(m)
end
end
+ private var color_consts_done = new HashSet[Object]
+
# colorize classe properties
fun do_property_coloring do
-
- # classes coloration
- self.class_coloring = new ClassColoring(mainmodule)
- class_coloring.colorize(modelbuilder.model.mclasses)
+ var mclasses = new HashSet[MClass].from(modelbuilder.model.mclasses)
+
+ # Layouts
+ var method_layout_builder: PropertyLayoutBuilder[MMethod]
+ var attribute_layout_builder: PropertyLayoutBuilder[MAttribute]
+ if modelbuilder.toolcontext.opt_bm_typing.value then
+ method_layout_builder = new MMethodBMizer(self.mainmodule)
+ attribute_layout_builder = new MAttributeBMizer(self.mainmodule)
+ else if modelbuilder.toolcontext.opt_phmod_typing.value then
+ method_layout_builder = new MMethodHasher(new PHModOperator, self.mainmodule)
+ attribute_layout_builder = new MAttributeHasher(new PHModOperator, self.mainmodule)
+ else if modelbuilder.toolcontext.opt_phand_typing.value then
+ method_layout_builder = new MMethodHasher(new PHAndOperator, self.mainmodule)
+ attribute_layout_builder = new MAttributeHasher(new PHAndOperator, self.mainmodule)
+ else
+ method_layout_builder = new MMethodColorer(self.mainmodule)
+ attribute_layout_builder = new MAttributeColorer(self.mainmodule)
+ end
# methods coloration
- var method_coloring = new MethodColoring(self.class_coloring)
- self.method_colors = method_coloring.colorize
- self.method_tables = method_coloring.build_property_tables
- self.compile_color_consts(self.method_colors)
+ var method_layout = method_layout_builder.build_layout(mclasses)
+ self.method_tables = build_method_tables(mclasses, method_layout)
+ self.compile_color_consts(method_layout.pos)
+ self.method_layout = method_layout
# attributes coloration
- var attribute_coloring = new AttributeColoring(self.class_coloring)
- self.attr_colors = attribute_coloring.colorize
- self.attr_tables = attribute_coloring.build_property_tables
- self.compile_color_consts(self.attr_colors)
-
- if modelbuilder.toolcontext.opt_use_naive_coloring.value then
- self.class_coloring = new NaiveClassColoring(mainmodule)
- self.class_coloring.colorize(modelbuilder.model.mclasses)
- end
- # vt coloration
- var vt_coloring = new VTColoring(class_coloring)
- self.vt_colors = vt_coloring.colorize
- self.vt_tables = vt_coloring.build_property_tables
- self.compile_color_consts(self.vt_colors)
+ var attr_layout = attribute_layout_builder.build_layout(mclasses)
+ self.attr_tables = build_attr_tables(mclasses, attr_layout)
+ self.compile_color_consts(attr_layout.pos)
+ self.attr_layout = attr_layout
end
- # colorize live types of the program
- private fun do_type_coloring: Set[MType] do
- var mtypes = new HashSet[MType]
- mtypes.add_all(self.runtime_type_analysis.live_types)
- mtypes.add_all(self.runtime_type_analysis.live_cast_types)
- mtypes.add_all(self.undead_types)
-
- self.undead_types.clear
- for mtype in mtypes do
- # add formal types arguments to mtypes
- if mtype isa MGenericType then
- for ft in mtype.arguments do
- if ft.need_anchor then
- print("Why do we need anchor here ?")
- abort
+ fun build_method_tables(mclasses: Set[MClass], layout: Layout[MProperty]): 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 = self.mainmodule.super_mclasses(mclass)
+ var lin = self.mainmodule.reverse_linearize_mclasses(parents)
+ for parent in lin do
+ for mproperty in self.mainmodule.properties(parent) do
+ if not mproperty isa MMethod then continue
+ var color = layout.pos[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
- self.undead_types.add(ft)
end
end
- var mclass_type: MClassType
- if mtype isa MNullableType then
- mclass_type = mtype.mtype.as(MClassType)
- else
- mclass_type = mtype.as(MClassType)
- end
- # add virtual types to mtypes
- for vt in self.vt_tables[mclass_type.mclass] do
- if vt != null then
- var anchored = vt.bound.anchor_to(self.mainmodule, mclass_type)
- self.undead_types.add(anchored)
+
+ # then override with local properties
+ for mproperty in self.mainmodule.properties(mclass) do
+ if not mproperty isa MMethod then continue
+ var color = layout.pos[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
+ tables[mclass] = table
end
- mtypes.add_all(self.undead_types)
+ return tables
+ end
- # set type unique id
- if modelbuilder.toolcontext.opt_use_mod_perfect_hashing.value or modelbuilder.toolcontext.opt_use_and_perfect_hashing.value then
- var sorted_mtypes = new OrderedSet[MType].from(mtypes)
- sorted_mtypes.linearize(new ReverseTypeSorter(self.mainmodule))
- for mtype in sorted_mtypes do
- self.typeids[mtype] = self.typeids.length + 1
+ fun build_attr_tables(mclasses: Set[MClass], layout: Layout[MProperty]): 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 = self.mainmodule.super_mclasses(mclass)
+ var lin = self.mainmodule.reverse_linearize_mclasses(parents)
+ for parent in lin do
+ for mproperty in self.mainmodule.properties(parent) do
+ if not mproperty isa MAttribute then continue
+ var color = layout.pos[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
- else
- for mtype in mtypes do
- self.typeids[mtype] = self.typeids.length
+
+ # then override with local properties
+ for mproperty in self.mainmodule.properties(mclass) do
+ if not mproperty isa MAttribute then continue
+ var color = layout.pos[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
+ tables[mclass] = table
end
+ return tables
+ end
- # fts coloration for non-erased compilation
- var ft_coloring = new FTColoring(class_coloring)
- self.ft_colors = ft_coloring.colorize
- self.ft_tables = ft_coloring.build_ft_tables
- self.compile_color_consts(self.ft_colors.as(not null))
-
- # colorize live entries
- var entries_coloring = new LiveEntryColoring
- self.livetypes_colors = entries_coloring.colorize(mtypes)
- self.livetypes_tables = entries_coloring.build_livetype_tables(mtypes)
- self.livetypes_tables_sizes = entries_coloring.livetypes_tables_sizes
+ # colorize live types of the program
+ private fun do_type_coloring: Set[MType] do
+ var mtypes = new HashSet[MType]
+ mtypes.add_all(self.runtime_type_analysis.live_types)
+ mtypes.add_all(self.runtime_type_analysis.live_cast_types)
+ mtypes.add_all(self.undead_types)
+ for c in self.box_kinds.keys do
+ mtypes.add(c.mclass_type)
+ end
- # colorize types
- if modelbuilder.toolcontext.opt_use_naive_coloring.value then
- var type_coloring = new NaiveTypeColoring(self.mainmodule, mtypes)
- self.type_colors = type_coloring.colorize(mtypes)
- self.type_tables = type_coloring.build_type_tables(mtypes, type_colors)
- else if modelbuilder.toolcontext.opt_use_mod_perfect_hashing.value then
- var type_coloring = new TypeModPerfectHashing(self.mainmodule, mtypes)
- self.type_colors = type_coloring.compute_masks(mtypes, typeids)
- self.type_tables = type_coloring.hash_type_tables(mtypes, typeids, type_colors)
-
- self.header.add_decl("int HASH(int, int);")
- var v = new_visitor
- v.add_decl("int HASH(int mask, int id) \{")
- v.add_decl("return mask % id;")
- v.add_decl("\}")
- else if modelbuilder.toolcontext.opt_use_and_perfect_hashing.value then
- var type_coloring = new TypeAndPerfectHashing(self.mainmodule, mtypes)
- self.type_colors = type_coloring.compute_masks(mtypes, typeids)
- self.type_tables = type_coloring.hash_type_tables(mtypes, typeids, type_colors)
-
- self.header.add_decl("int HASH(int, int);")
- var v = new_visitor
- v.add_decl("int HASH(int mask, int id) \{")
- v.add_decl("return mask & id;")
- v.add_decl("\}")
+ for mtype in mtypes do
+ retieve_live_partial_types(mtype)
+ end
+ mtypes.add_all(self.partial_types)
+
+ # Typing Layout
+ var layout_builder: TypingLayoutBuilder[MType]
+ if modelbuilder.toolcontext.opt_bm_typing.value then
+ layout_builder = new MTypeBMizer(self.mainmodule)
+ else if modelbuilder.toolcontext.opt_phmod_typing.value then
+ layout_builder = new MTypeHasher(new PHModOperator, self.mainmodule)
+ else if modelbuilder.toolcontext.opt_phand_typing.value then
+ layout_builder = new MTypeHasher(new PHAndOperator, self.mainmodule)
else
- var type_coloring = new TypeColoring(self.mainmodule, mtypes)
- self.type_colors = type_coloring.colorize(mtypes)
- self.type_tables = type_coloring.build_type_tables(mtypes, type_colors)
+ layout_builder = new MTypeColorer(self.mainmodule)
end
+ # colorize types
+ self.type_layout = layout_builder.build_layout(mtypes)
+ self.type_tables = self.build_type_tables(mtypes)
- # for the class_name and output_class_name methods
- self.compile_class_names
+ # VT and FT are stored with other unresolved types in the big resolution_tables
+ self.compile_resolution_tables(mtypes)
return mtypes
end
- # declare live generic types tables selection
- private fun compile_live_gentype_to_c(mclass: MClass) do
- if mclass.arity > 0 then
- if self.livetypes_tables.has_key(mclass) then
- var table = self.livetypes_tables[mclass]
- var sign = self.livetypes_tables_sizes[mclass]
- var table_buffer = new Buffer.from("const struct type *livetypes_{mclass.c_name}[{sign.join("][")}] = \{\n")
- compile_livetype_table(table, table_buffer, 1, mclass.arity)
- table_buffer.append("\};")
-
- var v = new SeparateCompilerVisitor(self)
- self.header.add_decl("extern const struct type *livetypes_{mclass.c_name}[{sign.join("][")}];")
- v.add_decl(table_buffer.to_s)
+ # Build type tables
+ fun build_type_tables(mtypes: Set[MType]): Map[MType, Array[nullable MType]] do
+ var tables = new HashMap[MType, Array[nullable MType]]
+ var layout = self.type_layout
+ for mtype in mtypes do
+ var table = new Array[nullable MType]
+ var supers = new HashSet[MType]
+ supers.add_all(self.mainmodule.super_mtypes(mtype, mtypes))
+ supers.add(mtype)
+ for sup in supers do
+ var color: Int
+ if layout isa PHLayout[MType, MType] then
+ color = layout.hashes[mtype][sup]
+ else
+ color = layout.pos[sup]
+ end
+ if table.length <= color then
+ for i in [table.length .. color[ do
+ table[i] = null
+ end
+ end
+ table[color] = sup
+ end
+ tables[mtype] = table
+ end
+ return tables
+ end
+
+ protected fun compile_resolution_tables(mtypes: Set[MType]) do
+ # resolution_tables is used to perform a type resolution at runtime in O(1)
+
+ # During the visit of the body of classes, live_unresolved_types are collected
+ # and associated to
+ # Collect all live_unresolved_types (visited in the body of classes)
+
+ # Determinate fo each livetype what are its possible requested anchored types
+ var mtype2unresolved = new HashMap[MClassType, Set[MType]]
+ for mtype in self.runtime_type_analysis.live_types do
+ var set = new HashSet[MType]
+ for cd in mtype.collect_mclassdefs(self.mainmodule) do
+ if self.live_unresolved_types.has_key(cd) then
+ set.add_all(self.live_unresolved_types[cd])
+ end
+ end
+ mtype2unresolved[mtype] = set
+ end
+
+ # Compute the table layout with the prefered method
+ var resolution_builder: ResolutionLayoutBuilder
+ if modelbuilder.toolcontext.opt_bm_typing.value then
+ resolution_builder = new ResolutionBMizer
+ else if modelbuilder.toolcontext.opt_phmod_typing.value then
+ resolution_builder = new ResolutionHasher(new PHModOperator)
+ else if modelbuilder.toolcontext.opt_phand_typing.value then
+ resolution_builder = new ResolutionHasher(new PHAndOperator)
+ else
+ resolution_builder = new ResolutionColorer
+ end
+ self.resolution_layout = resolution_builder.build_layout(mtype2unresolved)
+ self.resolution_tables = self.build_resolution_tables(mtype2unresolved)
+
+ # Compile a C constant for each collected unresolved type.
+ # Either to a color, or to -1 if the unresolved type is dead (no live receiver can require it)
+ var all_unresolved = new HashSet[MType]
+ for t in self.live_unresolved_types.values do
+ all_unresolved.add_all(t)
+ end
+ var all_unresolved_types_colors = new HashMap[MType, Int]
+ for t in all_unresolved do
+ if self.resolution_layout.pos.has_key(t) then
+ all_unresolved_types_colors[t] = self.resolution_layout.pos[t]
else
- var sign = new Array[Int].filled_with(0, mclass.arity)
- var v = new SeparateCompilerVisitor(self)
- self.header.add_decl("extern const struct type *livetypes_{mclass.c_name}[{sign.join("][")}];")
- v.add_decl("const struct type *livetypes_{mclass.c_name}[{sign.join("][")}];")
+ all_unresolved_types_colors[t] = -1
end
end
+ self.compile_color_consts(all_unresolved_types_colors)
+
+ #print "tables"
+ #for k, v in unresolved_types_tables.as(not null) do
+ # print "{k}: {v.join(", ")}"
+ #end
+ #print ""
end
- private fun compile_livetype_table(table: Array[nullable Object], buffer: Buffer, depth: Int, max: Int) do
- for obj in table do
- if obj == null then
- if depth == max then
- buffer.append("NULL,\n")
+ fun build_resolution_tables(elements: Map[MClassType, Set[MType]]): Map[MClassType, Array[nullable MType]] do
+ var tables = new HashMap[MClassType, Array[nullable MType]]
+ var layout = self.resolution_layout
+ for mclasstype, mtypes in elements do
+ var table = new Array[nullable MType]
+ for mtype in mtypes do
+ var color: Int
+ if layout isa PHLayout[MClassType, MType] then
+ color = layout.hashes[mclasstype][mtype]
else
- buffer.append("\{\},\n")
+ color = layout.pos[mtype]
+ end
+ if table.length <= color then
+ for i in [table.length .. color[ do
+ table[i] = null
+ end
+ end
+ table[color] = mtype
+ end
+ tables[mclasstype] = table
+ end
+ return tables
+ end
+
+ fun retieve_live_partial_types(mtype: MType) do
+ # add formal types arguments to mtypes
+ if mtype isa MGenericType then
+ for ft in mtype.arguments do
+ if ft.need_anchor then
+ print("Why do we need anchor here ?")
+ abort
end
- else if obj isa MClassType then
- buffer.append("(struct type*) &type_{obj.c_name}, /* {obj} */\n")
- else if obj isa Array[nullable Object] then
- buffer.append("\{\n")
- compile_livetype_table(obj, buffer, depth + 1, max)
- buffer.append("\},\n")
+ self.partial_types.add(ft)
+ retieve_live_partial_types(ft)
+ end
+ end
+ var mclass_type: MClassType
+ if mtype isa MNullableType then
+ mclass_type = mtype.mtype.as(MClassType)
+ else
+ mclass_type = mtype.as(MClassType)
+ end
+
+ # add virtual types to mtypes
+ for vt in self.mainmodule.properties(mclass_type.mclass) do
+ if vt isa MVirtualTypeProp then
+ var anchored = vt.mvirtualtype.lookup_bound(self.mainmodule, mclass_type).anchor_to(self.mainmodule, mclass_type)
+ self.partial_types.add(anchored)
end
end
end
# Separately compile all the method definitions of the module
fun compile_module_to_c(mmodule: MModule)
do
+ var old_module = self.mainmodule
+ self.mainmodule = mmodule
for cd in mmodule.mclassdefs do
for pd in cd.mpropdefs do
if not pd isa MMethodDef then continue
end
end
end
+ self.mainmodule = old_module
end
# Globaly compile the type structure of a live type
self.header.add_decl("extern const struct type_{c_name} type_{c_name};")
self.header.add_decl("struct type_{c_name} \{")
self.header.add_decl("int id;")
+ self.header.add_decl("const char *name;")
self.header.add_decl("int color;")
- self.header.add_decl("int livecolor;")
self.header.add_decl("short int is_nullable;")
- self.header.add_decl("const struct vts_table_{c_name} *vts_table;")
- self.header.add_decl("const struct fts_table_{c_name} *fts_table;")
+ self.header.add_decl("const struct types *resolution_table;")
self.header.add_decl("int table_size;")
self.header.add_decl("int type_table[{self.type_tables[mtype].length}];")
self.header.add_decl("\};")
# const struct type_X
v.add_decl("const struct type_{c_name} type_{c_name} = \{")
- v.add_decl("{self.typeids[mtype]},")
- v.add_decl("{self.type_colors[mtype]},")
- v.add_decl("{self.livetypes_colors[mtype]},")
+ v.add_decl("{self.type_layout.ids[mtype]},")
+ v.add_decl("\"{mtype}\", /* class_name_string */")
+ var layout = self.type_layout
+ if layout isa PHLayout[MType, MType] then
+ v.add_decl("{layout.masks[mtype]},")
+ else
+ v.add_decl("{layout.pos[mtype]},")
+ end
if mtype isa MNullableType then
v.add_decl("1,")
else
v.add_decl("0,")
end
- v.add_decl("&vts_table_{c_name},")
- v.add_decl("&fts_table_{c_name},")
+ if compile_type_resolution_table(mtype) then
+ v.add_decl("(struct types*) &resolution_table_{c_name},")
+ else
+ v.add_decl("NULL,")
+ end
v.add_decl("{self.type_tables[mtype].length},")
v.add_decl("\{")
for stype in self.type_tables[mtype] do
if stype == null then
v.add_decl("-1, /* empty */")
else
- v.add_decl("{self.typeids[stype]}, /* {stype} */")
+ v.add_decl("{self.type_layout.ids[stype]}, /* {stype} */")
end
end
v.add_decl("\},")
v.add_decl("\};")
-
- compile_type_fts_table(mtype)
- compile_type_vts_table(mtype)
end
- protected fun compile_type_fts_table(mtype: MType) do
+ fun compile_type_resolution_table(mtype: MType): Bool do
var mclass_type: MClassType
if mtype isa MNullableType then
else
mclass_type = mtype.as(MClassType)
end
+ if not self.resolution_tables.has_key(mclass_type) then return false
- # extern const struct fst_table_X fst_table_X
- self.header.add_decl("extern const struct fts_table_{mtype.c_name} fts_table_{mtype.c_name};")
- self.header.add_decl("struct fts_table_{mtype.c_name} \{")
- self.header.add_decl("struct type *fts[{self.ft_tables[mclass_type.mclass].length}];")
- self.header.add_decl("\};")
+ var layout = self.resolution_layout
- # const struct fts_table_X fts_table_X
- var v = new_visitor
- v.add_decl("const struct fts_table_{mtype.c_name} fts_table_{mtype.c_name} = \{")
- v.add_decl("\{")
- for ft in self.ft_tables[mclass_type.mclass] do
- if ft == null then
- v.add_decl("NULL, /* empty */")
- else
- var ntype: MType
- if ft.mclass == mclass_type.mclass then
- ntype = mclass_type.arguments[ft.rank]
- else
- ntype = ft.anchor_to(self.mainmodule, mclass_type)
- end
- if self.typeids.has_key(ntype) then
- v.add_decl("(struct type*)&type_{ntype.c_name}, /* {ft} ({ntype}) */")
- else
- v.add_decl("NULL, /* empty ({ft} not a live type) */")
- end
- end
+ # extern const struct resolution_table_X resolution_table_X
+ self.header.add_decl("extern const struct resolution_table_{mtype.c_name} resolution_table_{mtype.c_name};")
+ self.header.add_decl("struct resolution_table_{mtype.c_name} \{")
+ if layout isa PHLayout[MClassType, MType] then
+ self.header.add_decl("int mask;")
end
- v.add_decl("\},")
- v.add_decl("\};")
- end
-
- protected fun compile_type_vts_table(mtype: MType) do
-
- var mclass_type: MClassType
- if mtype isa MNullableType then
- mclass_type = mtype.mtype.as(MClassType)
- else
- mclass_type = mtype.as(MClassType)
- end
-
- # extern const struct vts_table_X vts_table_X
- self.header.add_decl("extern const struct vts_table_{mtype.c_name} vts_table_{mtype.c_name};")
- self.header.add_decl("struct vts_table_{mtype.c_name} \{")
- self.header.add_decl("struct type *vts[{self.vt_tables[mclass_type.mclass].length}];")
+ self.header.add_decl("struct type *types[{self.resolution_tables[mclass_type].length}];")
self.header.add_decl("\};")
- # const struct vts_table_X vts_table_X
+ # const struct fts_table_X fts_table_X
var v = new_visitor
- v.add_decl("const struct vts_table_{mtype.c_name} vts_table_{mtype.c_name} = \{")
+ v.add_decl("const struct resolution_table_{mtype.c_name} resolution_table_{mtype.c_name} = \{")
+ if layout isa PHLayout[MClassType, MType] then
+ v.add_decl("{layout.masks[mclass_type]},")
+ end
v.add_decl("\{")
-
- for vt in self.vt_tables[mclass_type.mclass] do
- if vt == null then
+ for t in self.resolution_tables[mclass_type] do
+ if t == null then
v.add_decl("NULL, /* empty */")
else
- var bound = vt.bound
- if bound == null then
- #FIXME how can a bound be null here ?
- print "No bound found for virtual type {vt} ?"
- abort
+ # The table stores the result of the type resolution
+ # Therefore, for a receiver `mclass_type`, and a unresolved type `t`
+ # the value stored is tv.
+ var tv = t.resolve_for(mclass_type, mclass_type, self.mainmodule, true)
+ # FIXME: What typeids means here? How can a tv not be live?
+ if self.type_layout.ids.has_key(tv) then
+ v.add_decl("(struct type*)&type_{tv.c_name}, /* {t}: {tv} */")
else
- var is_nullable = ""
- if bound isa MNullableType then
- bound = bound.mtype
- is_nullable = "nullable_"
- end
- if bound isa MVirtualType then
- bound = bound.anchor_to(self.mainmodule, mclass_type)
- else if bound isa MParameterType then
- bound = bound.anchor_to(self.mainmodule, mclass_type)
- else if bound isa MGenericType and bound.need_anchor then
- bound = bound.anchor_to(self.mainmodule, mclass_type)
- else if bound isa MClassType then
- else
- print "NOT YET IMPLEMENTED: mtype_to_livetype with type: {bound}"
- abort
- end
-
- if self.typeids.has_key(bound) then
- v.add_decl("(struct type*)&type_{is_nullable}{bound.c_name}, /* {bound} */")
- else
- v.add_decl("NULL, /* dead type {bound} */")
- end
+ v.add_decl("NULL, /* empty ({t}: {tv} not a live type) */")
end
end
end
v.add_decl("\},")
v.add_decl("\};")
+ return true
end
# Globally compile the table of the class mclass
var v = new_visitor
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("struct class_{c_name} \{")
self.header.add_decl("int box_kind;")
else
v.add("{res} = GC_MALLOC(sizeof(struct instance_{c_name}));")
end
- #v.add("{res} = calloc(sizeof(struct instance_{c_name}), 1);")
v.add("{res}->type = type;")
+ if v.compiler.modelbuilder.toolcontext.opt_hardening.value then
+ v.add("if(type == NULL) \{")
+ v.add_abort("type null")
+ v.add("\}")
+ v.add("if(type->resolution_table == NULL) \{")
+ v.add("fprintf(stderr, \"Insantiation of a dead type: %s\\n\", type->name);")
+ v.add_abort("type dead")
+ v.add("\}")
+ end
v.add("{res}->class = (struct class*) &class_{c_name};")
self.generate_init_attr(v, res, mtype)
end
redef fun new_visitor do return new SeparateCompilerVisitor(self)
-end
-
-# The C function associated to a methoddef separately compiled
-class SeparateRuntimeFunction
- super AbstractRuntimeFunction
-
- redef fun build_c_name: String
- do
- return "{mmethoddef.c_name}"
- end
-
- redef fun to_s do return self.mmethoddef.to_s
-
- redef fun compile_to_c(compiler)
- do
- var mmethoddef = self.mmethoddef
-
- var recv = self.mmethoddef.mclassdef.bound_mtype
- var v = compiler.new_visitor
- var selfvar = new RuntimeVariable("self", recv, recv)
- var arguments = new Array[RuntimeVariable]
- var frame = new Frame(v, mmethoddef, recv, arguments)
- v.frame = frame
-
- var msignature = mmethoddef.msignature.resolve_for(mmethoddef.mclassdef.bound_mtype, mmethoddef.mclassdef.bound_mtype, mmethoddef.mclassdef.mmodule, true)
-
- var sig = new Buffer
- var comment = new Buffer
- var ret = msignature.return_mtype
- if ret != null then
- sig.append("{ret.ctype} ")
- else if mmethoddef.mproperty.is_new then
- ret = recv
- sig.append("{ret.ctype} ")
- else
- sig.append("void ")
- end
- sig.append(self.c_name)
- sig.append("({selfvar.mtype.ctype} {selfvar}")
- comment.append("(self: {selfvar}")
- arguments.add(selfvar)
- for i in [0..msignature.arity[ do
- var mtype = msignature.mparameters[i].mtype
- if i == msignature.vararg_rank then
- mtype = v.get_class("Array").get_mtype([mtype])
- end
- comment.append(", {mtype}")
- sig.append(", {mtype.ctype} p{i}")
- var argvar = new RuntimeVariable("p{i}", mtype, mtype)
- arguments.add(argvar)
- end
- sig.append(")")
- comment.append(")")
- if ret != null then
- comment.append(": {ret}")
- end
- compiler.header.add_decl("{sig};")
-
- v.add_decl("/* method {self} for {comment} */")
- v.add_decl("{sig} \{")
- if ret != null then
- frame.returnvar = v.new_var(ret)
- end
- frame.returnlabel = v.get_name("RET_LABEL")
-
- if recv != arguments.first.mtype then
- #print "{self} {recv} {arguments.first}"
- end
- mmethoddef.compile_inside_to_c(v, arguments)
-
- v.add("{frame.returnlabel.as(not null)}:;")
- if ret != null then
- v.add("return {frame.returnvar.as(not null)};")
- end
- v.add("\}")
- end
-end
-
-# The C function associated to a methoddef on a primitive type, stored into a VFT of a class
-# The first parameter (the reciever) is always typed by val* in order to accept an object value
-class VirtualRuntimeFunction
- super AbstractRuntimeFunction
-
- redef fun build_c_name: String
- do
- return "VIRTUAL_{mmethoddef.c_name}"
- end
-
- redef fun to_s do return self.mmethoddef.to_s
-
- redef fun compile_to_c(compiler)
- do
- var mmethoddef = self.mmethoddef
-
- var recv = self.mmethoddef.mclassdef.bound_mtype
- var v = compiler.new_visitor
- var selfvar = new RuntimeVariable("self", v.object_type, recv)
- var arguments = new Array[RuntimeVariable]
- var frame = new Frame(v, mmethoddef, recv, arguments)
- v.frame = frame
-
- var sig = new Buffer
- var comment = new Buffer
-
- # Because the function is virtual, the signature must match the one of the original class
- var intromclassdef = self.mmethoddef.mproperty.intro.mclassdef
- var msignature = mmethoddef.mproperty.intro.msignature.resolve_for(intromclassdef.bound_mtype, intromclassdef.bound_mtype, intromclassdef.mmodule, true)
- var ret = msignature.return_mtype
- if ret != null then
- sig.append("{ret.ctype} ")
- else if mmethoddef.mproperty.is_new then
- ret = recv
- sig.append("{ret.ctype} ")
- else
- sig.append("void ")
- end
- sig.append(self.c_name)
- sig.append("({selfvar.mtype.ctype} {selfvar}")
- comment.append("(self: {selfvar}")
- arguments.add(selfvar)
- for i in [0..msignature.arity[ do
- var mtype = msignature.mparameters[i].mtype
- if i == msignature.vararg_rank then
- mtype = v.get_class("Array").get_mtype([mtype])
- end
- comment.append(", {mtype}")
- sig.append(", {mtype.ctype} p{i}")
- var argvar = new RuntimeVariable("p{i}", mtype, mtype)
- arguments.add(argvar)
- end
- sig.append(")")
- comment.append(")")
- if ret != null then
- comment.append(": {ret}")
- end
- compiler.header.add_decl("{sig};")
-
- v.add_decl("/* method {self} for {comment} */")
- v.add_decl("{sig} \{")
- if ret != null then
- frame.returnvar = v.new_var(ret)
- end
- frame.returnlabel = v.get_name("RET_LABEL")
- if recv != arguments.first.mtype then
- #print "{self} {recv} {arguments.first}"
- end
- mmethoddef.compile_inside_to_c(v, arguments)
+ # Stats
- v.add("{frame.returnlabel.as(not null)}:;")
- if ret != null then
- v.add("return {frame.returnvar.as(not null)};")
+ private var type_tables: Map[MType, Array[nullable MType]] = new HashMap[MType, Array[nullable MType]]
+ private var resolution_tables: Map[MClassType, Array[nullable MType]] = new HashMap[MClassType, Array[nullable MType]]
+ protected var method_tables: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
+ protected var attr_tables: Map[MClass, Array[nullable MPropDef]] = new HashMap[MClass, Array[nullable MPropDef]]
+
+ redef fun display_stats
+ do
+ super
+ if self.modelbuilder.toolcontext.opt_tables_metrics.value then
+ display_sizes
end
- v.add("\}")
end
- redef fun call(v, arguments)
+ fun display_sizes
do
- abort
- # TODO ?
+ print "# size of subtyping tables"
+ print "\ttotal \tholes"
+ var total = 0
+ var holes = 0
+ for t, table in type_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 resolution_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
# A visitor on the AST of property definition that generate the C code of a separate compilation process.
class SeparateCompilerVisitor
- super GlobalCompilerVisitor # TODO better separation of concerns
+ super AbstractCompilerVisitor
+
+ redef type COMPILER: SeparateCompiler
- redef fun adapt_signature(m: MMethodDef, args: Array[RuntimeVariable])
+ redef fun adapt_signature(m, args)
do
var msignature = m.msignature.resolve_for(m.mclassdef.bound_mtype, m.mclassdef.bound_mtype, m.mclassdef.mmodule, true)
var recv = args.first
end
end
- # Box or unbox a value to another type iff a C type conversion is needed
- # ENSURE: result.mtype.ctype == mtype.ctype
- redef fun autobox(value: RuntimeVariable, mtype: MType): RuntimeVariable
+ redef fun autobox(value, mtype)
do
if value.mtype == mtype then
return value
end
end
+ # Return a C expression returning the runtime type structure of the value
+ # The point of the method is to works also with primitives types.
+ fun type_info(value: RuntimeVariable): String
+ do
+ if value.mtype.ctype == "val*" then
+ return "{value}->type"
+ else
+ return "(&type_{value.mtype.c_name})"
+ end
+ end
+
redef fun send(mmethod, arguments)
do
if arguments.first.mcasttype.ctype != "val*" then
var recv = arguments.first
s.append("val*")
ss.append("{recv}")
- self.varargize(msignature, arguments)
+ self.varargize(mmethod.intro, mmethod.intro.msignature.as(not null), arguments)
for i in [0..msignature.arity[ do
var a = arguments[i+1]
var t = msignature.mparameters[i].mtype
end
self.add("\} else \{")
end
+ if not self.compiler.modelbuilder.toolcontext.opt_no_shortcut_equate.value and (mmethod.name == "==" or mmethod.name == "!=") then
+ assert res != null
+ # Recv is not null, thus is arg is, it is easy to conclude (and respect the invariants)
+ var arg = arguments[1]
+ if arg.mcasttype isa MNullType then
+ if mmethod.name == "==" then
+ self.add("{res} = 0; /* arg is null but recv is not */")
+ else
+ self.add("{res} = 1; /* arg is null and recv is not */")
+ end
+ if maybenull then
+ self.add("\}")
+ end
+ return res
+ end
+ end
var r
if ret == null then r = "void" else r = ret.ctype
return res
end
+ redef fun supercall(m: MMethodDef, recvtype: MClassType, args: Array[RuntimeVariable]): nullable RuntimeVariable
+ do
+ # FIXME implements a polymorphic access in tables
+ m = m.lookup_next_definition(m.mclassdef.mmodule, m.mclassdef.bound_mtype)
+ return self.call(m, recvtype, args)
+ end
+
+ redef fun vararg_instance(mpropdef, recv, varargs, elttype)
+ do
+ # A vararg must be stored into an new array
+ # The trick is that the dymaic type of the array may depends on the receiver
+ # of the method (ie recv) if the static type is unresolved
+ # This is more complex than usual because the unresolved type must not be resolved
+ # with the current receiver (ie self).
+ # Therefore to isolate the resolution from self, a local Frame is created.
+ # One can see this implementation as an inlined method of the receiver whose only
+ # job is to allocate the array
+ var old_frame = self.frame
+ var frame = new Frame(self, mpropdef, mpropdef.mclassdef.bound_mtype, [recv])
+ self.frame = frame
+ #print "required Array[{elttype}] for recv {recv.inspect}. bound=Array[{self.resolve_for(elttype, recv)}]. selfvar={frame.arguments.first.inspect}"
+ var res = self.array_instance(varargs, elttype)
+ self.frame = old_frame
+ return res
+ end
+
redef fun isset_attribute(a, recv)
do
self.check_recv_notnull(recv)
var res = self.new_var(bool_type)
- self.add("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
+
+ # What is the declared type of the attribute?
+ var mtype = a.intro.static_mtype.as(not null)
+ var intromclassdef = a.intro.mclassdef
+ mtype = mtype.resolve_for(intromclassdef.bound_mtype, intromclassdef.bound_mtype, intromclassdef.mmodule, true)
+
+ if mtype isa MNullableType then
+ self.add("{res} = 1; /* easy isset: {a} on {recv.inspect} */")
+ return res
+ end
+
+ if self.compiler.modelbuilder.toolcontext.opt_no_union_attribute.value then
+ self.add("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
+ else
+
+ if mtype.ctype == "val*" then
+ self.add("{res} = {recv}->attrs[{a.const_color}].val != NULL; /* {a} on {recv.inspect} */")
+ else
+ self.add("{res} = 1; /* NOT YET IMPLEMENTED: isset of primitives: {a} on {recv.inspect} */")
+ end
+ end
return res
end
var intromclassdef = a.intro.mclassdef
ret = ret.resolve_for(intromclassdef.bound_mtype, intromclassdef.bound_mtype, intromclassdef.mmodule, true)
- # Get the attribute or a box (ie. always a val*)
- var cret = self.object_type.as_nullable
- var res = self.new_var(cret)
- res.mcasttype = ret
- self.add("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
+ if self.compiler.modelbuilder.toolcontext.opt_no_union_attribute.value then
+ # Get the attribute or a box (ie. always a val*)
+ var cret = self.object_type.as_nullable
+ var res = self.new_var(cret)
+ res.mcasttype = ret
- # Check for Uninitialized attribute
- if not ret isa MNullableType and not self.compiler.modelbuilder.toolcontext.opt_no_check_initialization.value then
- self.add("if ({res} == NULL) \{")
- self.add_abort("Uninitialized attribute {a.name}")
- self.add("\}")
- end
+ self.add("{res} = {recv}->attrs[{a.const_color}]; /* {a} on {recv.inspect} */")
+
+ # Check for Uninitialized attribute
+ if not ret isa MNullableType and not self.compiler.modelbuilder.toolcontext.opt_no_check_initialization.value then
+ self.add("if ({res} == NULL) \{")
+ self.add_abort("Uninitialized attribute {a.name}")
+ self.add("\}")
+ end
+
+ # Return the attribute or its unboxed version
+ # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
+ return self.autobox(res, ret)
+ else
+ var res = self.new_var(ret)
+ self.add("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
- # Return the attribute or its unboxed version
- # Note: it is mandatory since we reuse the box on write, we do not whant that the box escapes
- return self.autobox(res, ret)
+ # Check for Uninitialized attribute
+ if ret.ctype == "val*" and not ret isa MNullableType and not self.compiler.modelbuilder.toolcontext.opt_no_check_initialization.value then
+ self.add("if ({res} == NULL) \{")
+ self.add_abort("Uninitialized attribute {a.name}")
+ self.add("\}")
+ end
+
+ return res
+ end
end
redef fun write_attribute(a, recv, value)
# Adapt the value to the declared type
value = self.autobox(value, mtype)
- var attr = "{recv}->attrs[{a.const_color}]"
- if mtype.ctype != "val*" then
- assert mtype isa MClassType
- # The attribute is primitive, thus we store it in a box
- # The trick is to create the box the first time then resuse the box
- self.add("if ({attr} != NULL) \{")
- self.add("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
- self.add("\} else \{")
- value = self.autobox(value, self.object_type.as_nullable)
- self.add("{attr} = {value}; /* {a} on {recv.inspect} */")
- self.add("\}")
- else
- # The attribute is not primitive, thus store it direclty
- self.add("{attr} = {value}; /* {a} on {recv.inspect} */")
- end
- end
-
- # Build livetype structure retrieving
- #ENSURE: mtype.need_anchor
- fun retrieve_anchored_livetype(mtype: MGenericType, buffer: Buffer) do
- assert mtype.need_anchor
-
- var compiler = self.compiler.as(SeparateCompiler)
- for ft in mtype.arguments do
-
- var ntype = ft
- var s: String = ""
- if ntype isa MNullableType then
- ntype = ntype.mtype
- end
- if ntype isa MParameterType then
- buffer.append("[self->type->fts_table->fts[{ntype.const_color}]->livecolor]")
- else if ntype isa MVirtualType then
- buffer.append("[self->type->vts_table->vts[{ntype.mproperty.const_color}]->livecolor]")
- else if ntype isa MGenericType and ntype.need_anchor then
- var bbuff = new Buffer
- retrieve_anchored_livetype(ntype, bbuff)
- buffer.append("[livetypes_{ntype.mclass.c_name}{bbuff.to_s}->livecolor]")
- else if ntype isa MClassType then
- compiler.undead_types.add(ft)
- buffer.append("[type_{ft.c_name}.livecolor]")
+ if self.compiler.modelbuilder.toolcontext.opt_no_union_attribute.value then
+ var attr = "{recv}->attrs[{a.const_color}]"
+ if mtype.ctype != "val*" then
+ assert mtype isa MClassType
+ # The attribute is primitive, thus we store it in a box
+ # The trick is to create the box the first time then resuse the box
+ self.add("if ({attr} != NULL) \{")
+ self.add("((struct instance_{mtype.c_name}*){attr})->value = {value}; /* {a} on {recv.inspect} */")
+ self.add("\} else \{")
+ value = self.autobox(value, self.object_type.as_nullable)
+ self.add("{attr} = {value}; /* {a} on {recv.inspect} */")
+ self.add("\}")
else
- self.add("printf(\"NOT YET IMPLEMENTED: init_instance(%s, {mtype}).\\n\", \"{ft}\"); exit(1);")
+ # The attribute is not primitive, thus store it direclty
+ self.add("{attr} = {value}; /* {a} on {recv.inspect} */")
end
+ else
+ self.add("{recv}->attrs[{a.const_color}].{mtype.ctypename} = {value}; /* {a} on {recv.inspect} */")
end
end
redef fun init_instance(mtype)
do
- var compiler = self.compiler.as(SeparateCompiler)
+ var compiler = self.compiler
if mtype isa MGenericType and mtype.need_anchor then
- var buff = new Buffer
- retrieve_anchored_livetype(mtype, buff)
- mtype = self.anchor(mtype).as(MClassType)
- return self.new_expr("NEW_{mtype.mclass.c_name}((struct type *) livetypes_{mtype.mclass.c_name}{buff.to_s})", mtype)
+ link_unresolved_type(self.frame.mpropdef.mclassdef, mtype)
+ var recv = self.frame.arguments.first
+ var recv_type_info = self.type_info(recv)
+ if compiler.modelbuilder.toolcontext.opt_phmod_typing.value or compiler.modelbuilder.toolcontext.opt_phand_typing.value then
+ return self.new_expr("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype)
+ else
+ return self.new_expr("NEW_{mtype.mclass.c_name}((struct type *) {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype)
+ end
end
compiler.undead_types.add(mtype)
return self.new_expr("NEW_{mtype.mclass.c_name}((struct type *) &type_{mtype.c_name})", mtype)
self.add("CHECK_NEW_{mtype.mclass.c_name}({value});")
end
-
- redef fun type_test(value, mtype)
+ redef fun type_test(value, mtype, tag)
do
self.add("/* {value.inspect} isa {mtype} */")
- var compiler = self.compiler.as(SeparateCompiler)
+ var compiler = self.compiler
var recv = self.frame.arguments.first
- var recv_boxed = self.autobox(recv, self.object_type)
+ var recv_type_info = self.type_info(recv)
var res = self.new_var(bool_type)
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 boxed = self.autobox(value, self.object_type)
-
+ var maybe_null = self.maybe_null(value)
+ var accept_null = "0"
var ntype = mtype
if ntype isa MNullableType then
ntype = ntype.mtype
+ accept_null = "1"
+ 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
- if ntype isa MParameterType then
- self.add("{cltype} = {recv_boxed}->type->fts_table->fts[{ntype.const_color}]->color;")
- self.add("{idtype} = {recv_boxed}->type->fts_table->fts[{ntype.const_color}]->id;")
- self.add("{is_nullable} = {recv_boxed}->type->fts_table->fts[{ntype.const_color}]->is_nullable;")
- else if ntype isa MGenericType and ntype.need_anchor then
- var buff = new Buffer
- retrieve_anchored_livetype(ntype, buff)
- self.add("{cltype} = livetypes_{ntype.mclass.c_name}{buff.to_s}->color;")
- self.add("{idtype} = livetypes_{ntype.mclass.c_name}{buff.to_s}->id;")
- self.add("{is_nullable} = livetypes_{ntype.mclass.c_name}{buff.to_s}->is_nullable;")
+ if ntype.need_anchor then
+ var type_struct = self.get_name("type_struct")
+ self.add_decl("struct type* {type_struct};")
+
+ # Either with resolution_table with a direct resolution
+ link_unresolved_type(self.frame.mpropdef.mclassdef, ntype)
+ if compiler.modelbuilder.toolcontext.opt_phmod_typing.value or compiler.modelbuilder.toolcontext.opt_phand_typing.value then
+ self.add("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {ntype.const_color})];")
+ else
+ self.add("{type_struct} = {recv_type_info}->resolution_table->types[{ntype.const_color}];")
+ 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
+ self.add("{cltype} = {type_struct}->color;")
+ self.add("{idtype} = {type_struct}->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} = {type_struct}->is_nullable;")
+ accept_null = is_nullable.to_s
+ end
else if ntype isa MClassType then
compiler.undead_types.add(mtype)
self.add("{cltype} = type_{mtype.c_name}.color;")
self.add("{idtype} = type_{mtype.c_name}.id;")
- self.add("{is_nullable} = type_{mtype.c_name}.is_nullable;")
- else if ntype isa MVirtualType then
- var vtcolor = ntype.mproperty.const_color
- self.add("{cltype} = {recv_boxed}->type->vts_table->vts[{vtcolor}]->color;")
- self.add("{idtype} = {recv_boxed}->type->vts_table->vts[{vtcolor}]->id;")
- self.add("{is_nullable} = {recv_boxed}->type->vts_table->vts[{vtcolor}]->is_nullable;")
+ 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
- self.add("printf(\"NOT YET IMPLEMENTED: type_test(%s, {mtype}).\\n\", \"{boxed.inspect}\"); exit(1);")
- end
-
- if mtype isa MNullableType then
- self.add("{is_nullable} = 1;")
+ self.add("printf(\"NOT YET IMPLEMENTED: type_test(%s, {mtype}).\\n\", \"{value.inspect}\"); exit(1);")
end
# check color is in table
- self.add("if({boxed} == NULL) \{")
- self.add("{res} = {is_nullable};")
- self.add("\} else \{")
- if compiler.modelbuilder.toolcontext.opt_use_mod_perfect_hashing.value or compiler.modelbuilder.toolcontext.opt_use_and_perfect_hashing.value then
- self.add("{cltype} = HASH({boxed}->type->color, {idtype});")
+ if maybe_null then
+ self.add("if({value} == NULL) \{")
+ self.add("{res} = {accept_null};")
+ self.add("\} else \{")
end
- self.add("if({cltype} >= {boxed}->type->table_size) \{")
+ var value_type_info = self.type_info(value)
+ if compiler.modelbuilder.toolcontext.opt_phmod_typing.value or compiler.modelbuilder.toolcontext.opt_phand_typing.value then
+ self.add("{cltype} = HASH({value_type_info}->color, {idtype});")
+ end
+ self.add("if({cltype} >= {value_type_info}->table_size) \{")
self.add("{res} = 0;")
self.add("\} else \{")
- self.add("{res} = {boxed}->type->type_table[{cltype}] == {idtype};")
- self.add("\}")
+ self.add("{res} = {value_type_info}->type_table[{cltype}] == {idtype};")
self.add("\}")
+ if maybe_null then
+ self.add("\}")
+ end
return res
end
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}->type->id];")
+ self.add_decl("const char* {res};")
+ if value.mtype.ctype == "val*" then
+ self.add "{res} = {value} == NULL ? \"null\" : {value}->type->name;"
+ else
+ self.add "{res} = type_{value.mtype.c_name}.name;"
+ end
return res
end
else if can_be_primitive(value1) and can_be_primitive(value2) then
test.add("{value1}->class == {value2}->class")
var s = new Array[String]
- for t, v in self.compiler.as(SeparateCompiler).box_kinds do
+ for t, v in self.compiler.box_kinds do
s.add "({value1}->class->box_kind == {v} && ((struct instance_{t.c_name}*){value1})->value == ((struct instance_{t.c_name}*){value2})->value)"
end
test.add("({s.join(" || ")})")
redef fun array_instance(array, elttype)
do
- var compiler = self.compiler.as(SeparateCompiler)
var nclass = self.get_class("NativeArray")
- elttype = self.anchor(elttype)
- var arraytype = self.get_class("Array").get_mtype([elttype])
+ var arrayclass = self.get_class("Array")
+ var arraytype = arrayclass.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
- compiler.undead_types.add(nat.mtype.as(MClassType))
- self.add("{nat} = NEW_{nclass.c_name}({array.length}, (struct type *) &type_{nat.mtype.c_name});")
+ var length = self.int_instance(array.length)
+ var nat = native_array_instance(elttype, 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.send(self.get_property("with_native", arrayclass.intro.bound_mtype), [res, nat, length])
self.check_init_instance(res, arraytype)
self.add("\}")
return res
end
+ fun native_array_instance(elttype: MType, length: RuntimeVariable): RuntimeVariable
+ do
+ var mtype = self.get_class("NativeArray").get_mtype([elttype])
+ assert mtype isa MGenericType
+ var compiler = self.compiler
+ if mtype.need_anchor then
+ link_unresolved_type(self.frame.mpropdef.mclassdef, mtype)
+ var recv = self.frame.arguments.first
+ var recv_type_info = self.type_info(recv)
+ if compiler.modelbuilder.toolcontext.opt_phmod_typing.value or compiler.modelbuilder.toolcontext.opt_phand_typing.value then
+ return self.new_expr("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})])", mtype)
+ else
+ return self.new_expr("NEW_{mtype.mclass.c_name}({length}, (struct type *) {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype)
+ end
+ end
+ compiler.undead_types.add(mtype)
+ return self.new_expr("NEW_{mtype.mclass.c_name}({length}, (struct type *) &type_{mtype.c_name})", mtype)
+ end
+
redef fun native_array_def(pname, ret_type, arguments)
do
var elttype = arguments.first.mtype
redef fun calloc_array(ret_type, arguments)
do
- var ret = ret_type.as(MGenericType)
- var compiler = self.compiler.as(SeparateCompiler)
- compiler.undead_types.add(ret)
var mclass = self.get_class("ArrayCapable")
var ft = mclass.mclass_type.arguments.first.as(MParameterType)
- self.ret(self.new_expr("NEW_{ret.mclass.c_name}({arguments[1]}, (struct type*) livetypes_array__NativeArray[self->type->fts_table->fts[{ft.const_color}]->livecolor])", ret_type))
+ var res = self.native_array_instance(ft, arguments[1])
+ self.ret(res)
end
-end
-redef class MClass
- # Return the name of the C structure associated to a Nit class
- fun c_name: String do
- var res = self.c_name_cache
- if res != null then return res
- res = "{intro_mmodule.name.to_cmangle}__{name.to_cmangle}"
- self.c_name_cache = res
- return res
+ fun link_unresolved_type(mclassdef: MClassDef, mtype: MType) do
+ assert mtype.need_anchor
+ var compiler = self.compiler
+ if not compiler.live_unresolved_types.has_key(self.frame.mpropdef.mclassdef) then
+ compiler.live_unresolved_types[self.frame.mpropdef.mclassdef] = new HashSet[MType]
+ end
+ compiler.live_unresolved_types[self.frame.mpropdef.mclassdef].add(mtype)
end
- private var c_name_cache: nullable String
end
-redef class MType
- fun const_color: String do return "COLOR_{c_name}"
-end
+# The C function associated to a methoddef separately compiled
+class SeparateRuntimeFunction
+ super AbstractRuntimeFunction
+
+ redef fun build_c_name: String do return "{mmethoddef.c_name}"
-redef class MParameterType
- redef fun c_name
+ redef fun to_s do return self.mmethoddef.to_s
+
+ redef fun compile_to_c(compiler)
do
- var res = self.c_name_cache
- if res != null then return res
- res = "{self.mclass.c_name}_FT{self.rank}"
- self.c_name_cache = res
- return res
+ var mmethoddef = self.mmethoddef
+
+ var recv = self.mmethoddef.mclassdef.bound_mtype
+ var v = compiler.new_visitor
+ var selfvar = new RuntimeVariable("self", recv, recv)
+ var arguments = new Array[RuntimeVariable]
+ var frame = new Frame(v, mmethoddef, recv, arguments)
+ v.frame = frame
+
+ var msignature = mmethoddef.msignature.resolve_for(mmethoddef.mclassdef.bound_mtype, mmethoddef.mclassdef.bound_mtype, mmethoddef.mclassdef.mmodule, true)
+
+ var sig = new Buffer
+ var comment = new Buffer
+ var ret = msignature.return_mtype
+ if ret != null then
+ sig.append("{ret.ctype} ")
+ else if mmethoddef.mproperty.is_new then
+ ret = recv
+ sig.append("{ret.ctype} ")
+ else
+ sig.append("void ")
+ end
+ sig.append(self.c_name)
+ sig.append("({selfvar.mtype.ctype} {selfvar}")
+ comment.append("(self: {selfvar}")
+ arguments.add(selfvar)
+ for i in [0..msignature.arity[ do
+ var mtype = msignature.mparameters[i].mtype
+ if i == msignature.vararg_rank then
+ mtype = v.get_class("Array").get_mtype([mtype])
+ end
+ comment.append(", {mtype}")
+ sig.append(", {mtype.ctype} p{i}")
+ var argvar = new RuntimeVariable("p{i}", mtype, mtype)
+ arguments.add(argvar)
+ end
+ sig.append(")")
+ comment.append(")")
+ if ret != null then
+ comment.append(": {ret}")
+ end
+ compiler.header.add_decl("{sig};")
+
+ v.add_decl("/* method {self} for {comment} */")
+ v.add_decl("{sig} \{")
+ if ret != null then
+ frame.returnvar = v.new_var(ret)
+ end
+ frame.returnlabel = v.get_name("RET_LABEL")
+
+ if recv != arguments.first.mtype then
+ #print "{self} {recv} {arguments.first}"
+ end
+ mmethoddef.compile_inside_to_c(v, arguments)
+
+ v.add("{frame.returnlabel.as(not null)}:;")
+ if ret != null then
+ v.add("return {frame.returnvar.as(not null)};")
+ end
+ v.add("\}")
end
end
-redef class MNullableType
- redef fun c_name
+# The C function associated to a methoddef on a primitive type, stored into a VFT of a class
+# The first parameter (the reciever) is always typed by val* in order to accept an object value
+class VirtualRuntimeFunction
+ super AbstractRuntimeFunction
+
+ redef fun build_c_name: String do return "VIRTUAL_{mmethoddef.c_name}"
+
+ redef fun to_s do return self.mmethoddef.to_s
+
+ redef fun compile_to_c(compiler)
do
- var res = self.c_name_cache
- if res != null then return res
- res = "nullable_{self.mtype.c_name}"
- self.c_name_cache = res
- return res
+ var mmethoddef = self.mmethoddef
+
+ var recv = self.mmethoddef.mclassdef.bound_mtype
+ var v = compiler.new_visitor
+ var selfvar = new RuntimeVariable("self", v.object_type, recv)
+ var arguments = new Array[RuntimeVariable]
+ var frame = new Frame(v, mmethoddef, recv, arguments)
+ v.frame = frame
+
+ var sig = new Buffer
+ var comment = new Buffer
+
+ # Because the function is virtual, the signature must match the one of the original class
+ var intromclassdef = self.mmethoddef.mproperty.intro.mclassdef
+ var msignature = mmethoddef.mproperty.intro.msignature.resolve_for(intromclassdef.bound_mtype, intromclassdef.bound_mtype, intromclassdef.mmodule, true)
+ var ret = msignature.return_mtype
+ if ret != null then
+ sig.append("{ret.ctype} ")
+ else if mmethoddef.mproperty.is_new then
+ ret = recv
+ sig.append("{ret.ctype} ")
+ else
+ sig.append("void ")
+ end
+ sig.append(self.c_name)
+ sig.append("({selfvar.mtype.ctype} {selfvar}")
+ comment.append("(self: {selfvar}")
+ arguments.add(selfvar)
+ for i in [0..msignature.arity[ do
+ var mtype = msignature.mparameters[i].mtype
+ if i == msignature.vararg_rank then
+ mtype = v.get_class("Array").get_mtype([mtype])
+ end
+ comment.append(", {mtype}")
+ sig.append(", {mtype.ctype} p{i}")
+ var argvar = new RuntimeVariable("p{i}", mtype, mtype)
+ arguments.add(argvar)
+ end
+ sig.append(")")
+ comment.append(")")
+ if ret != null then
+ comment.append(": {ret}")
+ end
+ compiler.header.add_decl("{sig};")
+
+ v.add_decl("/* method {self} for {comment} */")
+ v.add_decl("{sig} \{")
+ if ret != null then
+ frame.returnvar = v.new_var(ret)
+ end
+ frame.returnlabel = v.get_name("RET_LABEL")
+
+ if recv != arguments.first.mtype then
+ #print "{self} {recv} {arguments.first}"
+ end
+ mmethoddef.compile_inside_to_c(v, arguments)
+
+ v.add("{frame.returnlabel.as(not null)}:;")
+ if ret != null then
+ v.add("return {frame.returnvar.as(not null)};")
+ end
+ v.add("\}")
end
+
+ # TODO ?
+ redef fun call(v, arguments) do abort
end
-redef class MProperty
- fun c_name: String do
- var res = self.c_name_cache
- if res != null then return res
- res = "{self.intro.c_name}"
- self.c_name_cache = res
- return res
- end
- private var c_name_cache: nullable String
+redef class MType
+ fun const_color: String do return "COLOR_{c_name}"
+end
+redef class MProperty
fun const_color: String do return "COLOR_{c_name}"
end
nitlanguage / nit.git / blobdiff