# --no-inline-intern
var opt_no_inline_intern = new OptionBool("Do not inline call to intern methods", "--no-inline-intern")
# --no-union-attribute
- var opt_no_union_attribute = new OptionBool("Put primitive attibutes in a box instead of an union", "--no-union-attribute")
+ var opt_no_union_attribute = new OptionBool("Put primitive attributes in a box instead of an union", "--no-union-attribute")
# --no-shortcut-equate
var opt_no_shortcut_equate = new OptionBool("Always call == in a polymorphic way", "--no-shortcut-equal")
# --no-tag-primitives
var opt_no_tag_primitives = new OptionBool("Use only boxes for primitive types", "--no-tag-primitives")
# --colors-are-symbols
- var opt_colors_are_symbols = new OptionBool("Store colors as symbols (link-boost)", "--colors-are-symbols")
+ var opt_colors_are_symbols = new OptionBool("Store colors as symbols instead of static data (link-boost)", "--colors-are-symbols")
# --trampoline-call
var opt_trampoline_call = new OptionBool("Use an indirection when calling", "--trampoline-call")
# --guard-call
var opt_guard_call = new OptionBool("Guard VFT calls with a direct call", "--guard-call")
# --substitute-monomorph
- var opt_substitute_monomorph = new OptionBool("Replace monomorph trampoline with direct call (link-boost)", "--substitute-monomorph")
+ var opt_substitute_monomorph = new OptionBool("Replace monomorphic trampolines with direct calls (link-boost)", "--substitute-monomorph")
# --link-boost
var opt_link_boost = new OptionBool("Enable all link-boost optimizations", "--link-boost")
# --inline-some-methods
var opt_inline_some_methods = new OptionBool("Allow the separate compiler to inline some methods (semi-global)", "--inline-some-methods")
# --direct-call-monomorph
- var opt_direct_call_monomorph = new OptionBool("Allow the separate compiler to direct call monomorph sites (semi-global)", "--direct-call-monomorph")
+ var opt_direct_call_monomorph = new OptionBool("Allow the separate compiler to direct call monomorphic sites (semi-global)", "--direct-call-monomorph")
# --direct-call-monomorph0
- var opt_direct_call_monomorph0 = new OptionBool("Allow the separate compiler to direct call monomorph sites (semi-global)", "--direct-call-monomorph0")
+ var opt_direct_call_monomorph0 = new OptionBool("Allow the separate compiler to direct call monomorphic sites (semi-global)", "--direct-call-monomorph0")
# --skip-dead-methods
var opt_skip_dead_methods = new OptionBool("Do not compile dead methods (semi-global)", "--skip-dead-methods")
# --semi-global
# --tables-metrics
var opt_tables_metrics = new OptionBool("Enable static size measuring of tables used for vft, typing and resolution", "--tables-metrics")
# --type-poset
- var opt_type_poset = new OptionBool("Build a poset of types to create more condensed tables.", "--type-poset")
+ var opt_type_poset = new OptionBool("Build a poset of types to create more condensed tables", "--type-poset")
redef init
do
do
# Collect all bas box class
# FIXME: this is not completely fine with a separate compilation scheme
- for classname in ["Int", "Bool", "Char", "Float", "NativeString", "Pointer"] do
+ for classname in ["Int", "Bool", "Byte", "Char", "Float", "CString",
+ "Pointer", "Int8", "Int16", "UInt16", "Int32", "UInt32"] do
var classes = self.mainmodule.model.get_mclasses_by_name(classname)
if classes == null then continue
- assert classes.length == 1 else print classes.join(", ")
+ assert classes.length == 1 else print_error classes.join(", ")
self.box_kinds[classes.first] = self.box_kinds.length + 1
end
end
#if mclass.mclass_type.ctype == "val*" or mclass.mclass_type.is_subtype(self.mainmodule, mclass.mclass_type pointer_type) then
if mclass.mclass_type.ctype_extern == "val*" then
return 0
- else if mclass.kind == extern_kind and mclass.name != "NativeString" then
- return self.box_kinds[self.mainmodule.get_primitive_class("Pointer")]
+ else if mclass.kind == extern_kind and mclass.name != "CString" then
+ return self.box_kinds[self.mainmodule.pointer_type.mclass]
else
return self.box_kinds[mclass]
end
method_tables = new HashMap[MClass, Array[nullable MPropDef]]
attr_tables = new HashMap[MClass, Array[nullable MProperty]]
for mclass in mclasses do
- #if mclass.kind == abstract_kind or mclass.kind == interface_kind then continue
+ if not mclass.has_new_factory and (mclass.kind == abstract_kind or mclass.kind == interface_kind) then continue
if rta != null and not rta.live_classes.has(mclass) then continue
var mtype = mclass.intro.bound_mtype
var mtypes_by_class = new MultiHashMap[MClass, MType]
for e in mtypes do
- var c = e.as_notnullable.as(MClassType).mclass
+ var c = e.undecorate.as(MClassType).mclass
mtypes_by_class[c].add(e)
poset.add_node(e)
end
var casttypes_by_class = new MultiHashMap[MClass, MType]
for e in cast_types do
- var c = e.as_notnullable.as(MClassType).mclass
+ var c = e.undecorate.as(MClassType).mclass
casttypes_by_class[c].add(e)
poset.add_node(e)
end
# Group cast_type by their classes
var bucklets = new HashMap[MClass, Set[MType]]
for e in cast_types do
- var c = e.as_notnullable.as(MClassType).mclass
+ var c = e.undecorate.as(MClassType).mclass
if not bucklets.has_key(c) then
bucklets[c] = new HashSet[MType]
end
for cd in mmodule.mclassdefs do
for pd in cd.mpropdefs do
if not pd isa MMethodDef then continue
+ if pd.mproperty.is_broken or pd.is_broken or pd.msignature == null then continue # Skip broken method
var rta = runtime_type_analysis
if modelbuilder.toolcontext.opt_skip_dead_methods.value and rta != null and not rta.live_methoddefs.has(pd) then continue
#print "compile {pd} @ {cd} @ {mmodule}"
# resolution table (for receiver)
if is_live then
- var mclass_type = mtype.as_notnullable
+ var mclass_type = mtype.undecorate
assert mclass_type isa MClassType
if resolution_tables[mclass_type].is_empty then
v.add_decl("NULL, /*NO RESOLUTIONS*/")
end
v.add_decl("\},")
else
- v.add_decl("0, \{\}, /*DEAD TYPE*/")
+ # Use -1 to indicate dead type, the info is used by --hardening
+ v.add_decl("-1, \{\}, /*DEAD TYPE*/")
end
v.add_decl("\};")
end
fun compile_type_resolution_table(mtype: MType) do
- var mclass_type = mtype.as_notnullable.as(MClassType)
+ var mclass_type = mtype.undecorate.as(MClassType)
# extern const struct resolution_table_X resolution_table_X
self.provide_declaration("resolution_table_{mtype.c_name}", "extern const struct types resolution_table_{mtype.c_name};")
# In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
fun compile_class_to_c(mclass: MClass)
do
+ if mclass.is_broken then return
+
var mtype = mclass.intro.bound_mtype
var c_name = mclass.c_name
var v = new_visitor
var rta = runtime_type_analysis
- var is_dead = rta != null and not rta.live_classes.has(mclass) and mtype.ctype == "val*" and mclass.name != "NativeArray" and mclass.name != "Pointer"
+ var is_dead = rta != null and not rta.live_classes.has(mclass)
+ # While the class may be dead, some part of separately compiled code may use symbols associated to the class, so
+ # in order to compile and link correctly the C code, these symbols should be declared and defined.
+ var need_corpse = is_dead and mtype.is_c_primitive or mclass.kind == extern_kind or mclass.kind == enum_kind
- v.add_decl("/* runtime class {c_name} */")
+ v.add_decl("/* runtime class {c_name}: {mclass.full_name} (dead={is_dead}; need_corpse={need_corpse})*/")
# Build class vft
- if not is_dead then
+ if not is_dead or need_corpse then
self.provide_declaration("class_{c_name}", "extern const struct class class_{c_name};")
v.add_decl("const struct class class_{c_name} = \{")
v.add_decl("{self.box_kind_of(mclass)}, /* box_kind */")
if rta != null and not rta.live_methoddefs.has(mpropdef) then
v.add_decl("NULL, /* DEAD {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
continue
+ else if mpropdef.is_broken or mpropdef.msignature == null or mpropdef.mproperty.is_broken then
+ v.add_decl("NULL, /* DEAD (BROKEN) {mclass.intro_mmodule}:{mclass}:{mpropdef} */")
+ continue
end
var rf = mpropdef.virtual_runtime_function
v.require_declaration(rf.c_name)
v.add_decl("\};")
end
- if mtype.ctype != "val*" or mtype.mclass.name == "Pointer" then
+ if mtype.is_c_primitive or mtype.mclass.name == "Pointer" then
# Is a primitive type or the Pointer class, not any other extern class
if mtype.is_tagged then return
self.header.add_decl("{mtype.ctype_extern} value;")
self.header.add_decl("\};")
- if not rta.live_types.has(mtype) and mtype.mclass.name != "Pointer" then return
+ # Pointer is needed by extern types, live or not
+ if is_dead and mtype.mclass.name != "Pointer" then return
#Build BOX
self.provide_declaration("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype_extern});")
v.add_decl("/* allocate {mtype} */")
v.add_decl("val* BOX_{mtype.c_name}({mtype.ctype_extern} value) \{")
- v.add("struct instance_{c_name}*res = nit_alloc(sizeof(struct instance_{c_name}));")
+ var alloc = v.nit_alloc("sizeof(struct instance_{c_name})", mclass.full_name)
+ v.add("struct instance_{c_name}*res = {alloc};")
v.compiler.undead_types.add(mtype)
v.require_declaration("type_{c_name}")
v.add("res->type = &type_{c_name};")
v.add("return (val*)res;")
v.add("\}")
+ # A Pointer class also need its constructor
if mtype.mclass.name != "Pointer" then return
v = new_visitor
else
var res = v.new_named_var(mtype, "self")
res.is_exact = true
- v.add("{res} = nit_alloc(sizeof(struct instance_{mtype.c_name}));")
+ alloc = v.nit_alloc("sizeof(struct instance_{mtype.c_name})", mclass.full_name)
+ v.add("{res} = {alloc};")
v.add("{res}->type = type;")
hardening_live_type(v, "type")
v.require_declaration("class_{c_name}")
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}));")
+ var alloc = v.nit_alloc("sizeof(struct instance_{c_name}) + length*sizeof({mtype_elt.ctype})", mclass.full_name)
+ v.add("{res} = {alloc};")
v.add("{res}->type = type;")
hardening_live_type(v, "type")
v.require_declaration("class_{c_name}")
v.add("return (val*){res};")
v.add("\}")
return
- else if mtype.mclass.kind == extern_kind and mtype.mclass.name != "NativeString" then
- # Is an extern class (other than Pointer and NativeString)
- # Pointer is caught in a previous `if`, and NativeString is internal
+ else if mtype.mclass.kind == extern_kind and mtype.mclass.name != "CString" then
+ # Is an extern class (other than Pointer and CString)
+ # Pointer is caught in a previous `if`, and CString is internal
var pointer_type = mainmodule.pointer_type
self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
- v.add_decl("/* allocate {mtype} */")
+ v.add_decl("/* allocate extern {mtype} */")
v.add_decl("{mtype.ctype} NEW_{c_name}(const struct type* type) \{")
if is_dead then
v.add_abort("{mclass} is DEAD")
else
var res = v.new_named_var(mtype, "self")
res.is_exact = true
- v.add("{res} = nit_alloc(sizeof(struct instance_{pointer_type.c_name}));")
+ var alloc = v.nit_alloc("sizeof(struct instance_{pointer_type.c_name})", mclass.full_name)
+ v.add("{res} = {alloc};")
v.add("{res}->type = type;")
hardening_live_type(v, "type")
v.require_declaration("class_{c_name}")
res.is_exact = true
var attrs = self.attr_tables.get_or_null(mclass)
if attrs == null then
- v.add("{res} = nit_alloc(sizeof(struct instance));")
+ var alloc = v.nit_alloc("sizeof(struct instance)", mclass.full_name)
+ v.add("{res} = {alloc};")
else
- v.add("{res} = nit_alloc(sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t));")
+ var alloc = v.nit_alloc("sizeof(struct instance) + {attrs.length}*sizeof(nitattribute_t)", mclass.full_name)
+ v.add("{res} = {alloc};")
end
v.add("{res}->type = type;")
hardening_live_type(v, "type")
# use some Huffman coding.
if t.name == "Int" then
class_info[1] = t
+ t.mclass_type.tag_value = 1
else if t.name == "Char" then
class_info[2] = t
+ t.mclass_type.tag_value = 2
else if t.name == "Bool" then
class_info[3] = t
+ t.mclass_type.tag_value = 3
else
continue
end
v.add("if({t} == NULL) \{")
v.add_abort("type null")
v.add("\}")
- v.add("if({t}->table_size == 0) \{")
- v.add("PRINT_ERROR(\"Insantiation of a dead type: %s\\n\", {t}->name);")
+ v.add("if({t}->table_size < 0) \{")
+ v.add("PRINT_ERROR(\"Instantiation of a dead type: %s\\n\", {t}->name);")
v.add_abort("type dead")
v.add("\}")
end
args.first = self.autobox(args.first, m.mclassdef.mclass.mclass_type)
end
for i in [0..msignature.arity[ do
- var t = msignature.mparameters[i].mtype
- if i == msignature.vararg_rank then
+ var mp = msignature.mparameters[i]
+ var t = mp.mtype
+ if mp.is_vararg then
t = args[i+1].mtype
end
args[i+1] = self.autobox(args[i+1], t)
args.first = self.unbox_extern(args.first, m.mclassdef.mclass.mclass_type)
end
for i in [0..msignature.arity[ do
- var t = msignature.mparameters[i].mtype
- if i == msignature.vararg_rank then
+ var mp = msignature.mparameters[i]
+ var t = mp.mtype
+ if mp.is_vararg then
t = args[i+1].mtype
end
if m.is_extern then args[i+1] = self.unbox_extern(args[i+1], t)
do
if value.mtype == mtype then
return value
- else if value.mtype.ctype == "val*" and mtype.ctype == "val*" then
+ else if not value.mtype.is_c_primitive and not mtype.is_c_primitive then
return value
- else if value.mtype.ctype == "val*" then
+ else if not value.mtype.is_c_primitive then
if mtype.is_tagged then
if mtype.name == "Int" then
return self.new_expr("(long)({value})>>2", mtype)
else if mtype.name == "Char" then
- return self.new_expr("(char)((long)({value})>>2)", mtype)
+ return self.new_expr("(uint32_t)((long)({value})>>2)", mtype)
else if mtype.name == "Bool" then
return self.new_expr("(short int)((long)({value})>>2)", mtype)
else
end
end
return self.new_expr("((struct instance_{mtype.c_name}*){value})->value; /* autounbox from {value.mtype} to {mtype} */", mtype)
- else if mtype.ctype == "val*" then
+ else if not mtype.is_c_primitive then
+ assert value.mtype == value.mcasttype
if value.mtype.is_tagged then
+ var res
if value.mtype.name == "Int" then
- return self.new_expr("(val*)({value}<<2|1)", mtype)
+ res = self.new_expr("(val*)({value}<<2|1)", mtype)
else if value.mtype.name == "Char" then
- return self.new_expr("(val*)((long)({value})<<2|2)", mtype)
+ res = self.new_expr("(val*)((long)({value})<<2|2)", mtype)
else if value.mtype.name == "Bool" then
- return self.new_expr("(val*)((long)({value})<<2|3)", mtype)
+ res = self.new_expr("(val*)((long)({value})<<2|3)", mtype)
else
abort
end
+ # Do not loose type info
+ res.mcasttype = value.mcasttype
+ return res
end
var valtype = value.mtype.as(MClassType)
- if mtype isa MClassType and mtype.mclass.kind == extern_kind and mtype.mclass.name != "NativeString" then
+ if mtype isa MClassType and mtype.mclass.kind == extern_kind and mtype.mclass.name != "CString" then
valtype = compiler.mainmodule.pointer_type
end
var res = self.new_var(mtype)
- if compiler.runtime_type_analysis != null and not compiler.runtime_type_analysis.live_types.has(valtype) then
- self.add("/*no autobox from {value.mtype} to {mtype}: {value.mtype} is not live! */")
- self.add("PRINT_ERROR(\"Dead code executed!\\n\"); fatal_exit(1);")
- return res
- end
+ # Do not loose type info
+ res.mcasttype = value.mcasttype
self.require_declaration("BOX_{valtype.c_name}")
self.add("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
return res
redef fun unbox_extern(value, mtype)
do
if mtype isa MClassType and mtype.mclass.kind == extern_kind and
- mtype.mclass.name != "NativeString" then
+ mtype.mclass.name != "CString" then
var pointer_type = compiler.mainmodule.pointer_type
var res = self.new_var_extern(mtype)
self.add "{res} = ((struct instance_{pointer_type.c_name}*){value})->value; /* unboxing {value.mtype} */"
redef fun box_extern(value, mtype)
do
if mtype isa MClassType and mtype.mclass.kind == extern_kind and
- mtype.mclass.name != "NativeString" then
+ mtype.mclass.name != "CString" then
var valtype = compiler.mainmodule.pointer_type
var res = self.new_var(mtype)
- if compiler.runtime_type_analysis != null and not compiler.runtime_type_analysis.live_types.has(value.mtype.as(MClassType)) then
- self.add("/*no boxing of {value.mtype}: {value.mtype} is not live! */")
- self.add("PRINT_ERROR(\"Dead code executed!\\n\"); fatal_exit(1);")
- return res
- end
+ compiler.undead_types.add(mtype)
self.require_declaration("BOX_{valtype.c_name}")
self.add("{res} = BOX_{valtype.c_name}({value}); /* boxing {value.mtype} */")
self.require_declaration("type_{mtype.c_name}")
# Thus the expression can be used as a condition.
fun extract_tag(value: RuntimeVariable): String
do
- assert value.mtype.ctype == "val*"
+ assert not value.mtype.is_c_primitive
return "((long){value}&3)" # Get the two low bits
end
# The point of the method is to work also with primitive types.
fun class_info(value: RuntimeVariable): String
do
- if value.mtype.ctype == "val*" then
+ if not value.mtype.is_c_primitive then
if can_be_primitive(value) and not compiler.modelbuilder.toolcontext.opt_no_tag_primitives.value then
var tag = extract_tag(value)
return "({tag}?class_info[{tag}]:{value}->class)"
# The point of the method is to work also with primitive types.
fun type_info(value: RuntimeVariable): String
do
- if value.mtype.ctype == "val*" then
+ if not value.mtype.is_c_primitive then
if can_be_primitive(value) and not compiler.modelbuilder.toolcontext.opt_no_tag_primitives.value then
var tag = extract_tag(value)
return "({tag}?type_info[{tag}]:{value}->type)"
end
redef fun send(mmethod, arguments)
do
- if arguments.first.mcasttype.ctype != "val*" then
+ if arguments.first.mcasttype.is_c_primitive then
# In order to shortcut the primitive, we need to find the most specific method
# Howverr, because of performance (no flattening), we always work on the realmainmodule
var m = self.compiler.mainmodule
var res: nullable RuntimeVariable = null
var recv = arguments.first
var consider_null = not self.compiler.modelbuilder.toolcontext.opt_no_check_null.value or mmethod.name == "==" or mmethod.name == "!="
- var maybenull = (recv.mcasttype isa MNullableType or recv.mcasttype isa MNullType) and consider_null
- if maybenull then
+ if maybenull(recv) and consider_null then
self.add("if ({recv} == NULL) \{")
if mmethod.name == "==" or mmethod.name == "is_same_instance" then
res = self.new_var(bool_type)
if compiler.modelbuilder.toolcontext.opt_invocation_metrics.value then add("count_invoke_by_tables++;")
assert arguments.length == mmethod.intro.msignature.arity + 1 else debug("Invalid arity for {mmethod}. {arguments.length} arguments given.")
- var recv = arguments.first
var res0 = before_send(mmethod, arguments)
var runtime_function = mmethod.intro.virtual_runtime_function
var msignature = runtime_function.called_signature
+ adapt_signature(mmethod.intro, arguments)
+
var res: nullable RuntimeVariable
var ret = msignature.return_mtype
if ret == null then
res = self.new_var(ret)
end
- var ss = new FlatBuffer
-
- ss.append("{recv}")
- for i in [0..msignature.arity[ do
- var a = arguments[i+1]
- var t = msignature.mparameters[i].mtype
- if i == msignature.vararg_rank then
- t = arguments[i+1].mcasttype
- end
- a = self.autobox(a, t)
- ss.append(", {a}")
- end
+ var ss = arguments.join(", ")
var const_color = mentity.const_color
var ress
redef fun supercall(m: MMethodDef, recvtype: MClassType, arguments: Array[RuntimeVariable]): nullable RuntimeVariable
do
- if arguments.first.mcasttype.ctype != "val*" then
+ if arguments.first.mcasttype.is_c_primitive then
# In order to shortcut the primitive, we need to find the most specific method
# However, because of performance (no flattening), we always work on the realmainmodule
var main = self.compiler.mainmodule
self.add("{res} = {recv}->attrs[{a.const_color}] != NULL; /* {a} on {recv.inspect}*/")
else
- if mtype.ctype == "val*" then
+ if not mtype.is_c_primitive and not mtype.is_tagged 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} */")
self.add("{res} = {recv}->attrs[{a.const_color}].{ret.ctypename}; /* {a} on {recv.inspect} */")
# Check for Uninitialized attribute
- if ret.ctype == "val*" and not ret isa MNullableType and not self.compiler.modelbuilder.toolcontext.opt_no_check_attr_isset.value then
+ if not ret.is_c_primitive and not ret isa MNullableType and not self.compiler.modelbuilder.toolcontext.opt_no_check_attr_isset.value then
self.add("if (unlikely({res} == NULL)) \{")
self.add_abort("Uninitialized attribute {a.name}")
self.add("\}")
self.require_declaration(a.const_color)
if self.compiler.modelbuilder.toolcontext.opt_no_union_attribute.value then
var attr = "{recv}->attrs[{a.const_color}]"
- if mtype.ctype != "val*" then
+ if mtype.is_tagged then
+ # The attribute is not primitive, thus store it as tagged
+ var tv = autobox(value, compiler.mainmodule.object_type)
+ self.add("{attr} = {tv}; /* {a} on {recv.inspect} */")
+ else if mtype.is_c_primitive 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
do
var res = self.new_var(bool_type)
# Swap values to be symetric
- if value2.mtype.ctype != "val*" and value1.mtype.ctype == "val*" then
+ if value2.mtype.is_c_primitive and not value1.mtype.is_c_primitive then
var tmp = value1
value1 = value2
value2 = tmp
end
- if value1.mtype.ctype != "val*" then
+ if value1.mtype.is_c_primitive then
if value2.mtype == value1.mtype then
self.add("{res} = 1; /* is_same_type_test: compatible types {value1.mtype} vs. {value2.mtype} */")
- else if value2.mtype.ctype != "val*" then
+ else if value2.mtype.is_c_primitive then
self.add("{res} = 0; /* is_same_type_test: incompatible types {value1.mtype} vs. {value2.mtype}*/")
else
var mtype1 = value1.mtype.as(MClassType)
self.require_declaration("class_{mtype1.c_name}")
- self.add("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name}); /* is_same_type_test */")
+ self.add("{res} = ({value2} != NULL) && ({class_info(value2)} == &class_{mtype1.c_name}); /* is_same_type_test */")
end
else
self.add("{res} = ({value1} == {value2}) || ({value1} != NULL && {value2} != NULL && {class_info(value1)} == {class_info(value2)}); /* is_same_type_test */")
do
var res = self.get_name("var_class_name")
self.add_decl("const char* {res};")
- if value.mtype.ctype == "val*" then
+ if not value.mtype.is_c_primitive then
self.add "{res} = {value} == NULL ? \"null\" : {type_info(value)}->name;"
else if value.mtype isa MClassType and value.mtype.as(MClassType).mclass.kind == extern_kind and
- value.mtype.as(MClassType).name != "NativeString" then
+ value.mtype.as(MClassType).name != "CString" then
self.add "{res} = \"{value.mtype.as(MClassType).mclass}\";"
else
self.require_declaration("type_{value.mtype.c_name}")
redef fun equal_test(value1, value2)
do
var res = self.new_var(bool_type)
- if value2.mtype.ctype != "val*" and value1.mtype.ctype == "val*" then
+ if value2.mtype.is_c_primitive and not value1.mtype.is_c_primitive then
var tmp = value1
value1 = value2
value2 = tmp
end
- if value1.mtype.ctype != "val*" then
- if value2.mtype == value1.mtype then
+ if value1.mtype.is_c_primitive then
+ var t1 = value1.mtype
+ assert t1 == value1.mcasttype
+
+ # Fast case: same C type.
+ if value2.mtype == t1 then
+ # Same exact C primitive representation.
self.add("{res} = {value1} == {value2};")
- else if value2.mtype.ctype != "val*" then
- self.add("{res} = 0; /* incompatible types {value1.mtype} vs. {value2.mtype}*/")
- else if value1.mtype.is_tagged then
- self.add("{res} = ({value2} != NULL) && ({self.autobox(value2, value1.mtype)} == {value1});")
+ return res
+ end
+
+ # Complex case: value2 has a different representation
+ # Thus, it should be checked if `value2` is type-compatible with `value1`
+ # This compatibility is done statically if possible and dynamically else
+
+ # Conjunction (ands) of dynamic tests according to the static knowledge
+ var tests = new Array[String]
+
+ var t2 = value2.mcasttype
+ if t2 isa MNullableType then
+ # The destination type cannot be null
+ tests.add("({value2} != NULL)")
+ t2 = t2.mtype
+ else if t2 isa MNullType then
+ # `value2` is known to be null, thus incompatible with a primitive
+ self.add("{res} = 0; /* incompatible types {t1} vs. {t2}*/")
+ return res
+ end
+
+ if t2 == t1 then
+ # Same type but different representation.
+ else if t2.is_c_primitive then
+ # Type of `value2` is a different primitive type, thus incompatible
+ self.add("{res} = 0; /* incompatible types {t1} vs. {t2}*/")
+ return res
+ else if t1.is_tagged then
+ # To be equal, `value2` should also be correctly tagged
+ tests.add("({extract_tag(value2)} == {t1.tag_value})")
else
- var mtype1 = value1.mtype.as(MClassType)
- self.require_declaration("class_{mtype1.c_name}")
- self.add("{res} = ({value2} != NULL) && ({value2}->class == &class_{mtype1.c_name});")
- self.add("if ({res}) \{")
- self.add("{res} = ({self.autobox(value2, value1.mtype)} == {value1});")
- self.add("\}")
+ # To be equal, `value2` should also be boxed with the same class
+ self.require_declaration("class_{t1.c_name}")
+ tests.add "({class_info(value2)} == &class_{t1.c_name})"
+ end
+
+ # Compare the unboxed `value2` with `value1`
+ if tests.not_empty then
+ self.add "if ({tests.join(" && ")}) \{"
+ end
+ self.add "{res} = {self.autobox(value2, t1)} == {value1};"
+ if tests.not_empty then
+ self.add "\} else {res} = 0;"
end
+
return res
end
var maybe_null = true
var incompatible = false
var primitive
- if t1.ctype != "val*" then
+ if t1.is_c_primitive then
primitive = t1
if t1 == t2 then
# No need to compare class
- else if t2.ctype != "val*" then
+ else if t2.is_c_primitive then
incompatible = true
else if can_be_primitive(value2) then
if t1.is_tagged then
else
incompatible = true
end
- else if t2.ctype != "val*" then
+ else if t2.is_c_primitive then
primitive = t2
if can_be_primitive(value1) then
if t2.is_tagged then
fun can_be_primitive(value: RuntimeVariable): Bool
do
- var t = value.mcasttype.as_notnullable
+ var t = value.mcasttype.undecorate
if not t isa MClassType then return false
var k = t.mclass.kind
- return k == interface_kind or t.ctype != "val*"
+ return k == interface_kind or t.is_c_primitive
end
fun maybe_null(value: RuntimeVariable): Bool
redef fun array_instance(array, elttype)
do
- var nclass = self.get_class("NativeArray")
- var arrayclass = self.get_class("Array")
+ var nclass = mmodule.native_array_class
+ var arrayclass = mmodule.array_class
var arraytype = arrayclass.get_mtype([elttype])
var res = self.init_instance(arraytype)
self.add("\{ /* {res} = array_instance Array[{elttype}] */")
return res
end
- redef fun native_array_instance(elttype: MType, length: RuntimeVariable): RuntimeVariable
+ redef fun native_array_instance(elttype, length)
do
- var mtype = self.get_class("NativeArray").get_mtype([elttype])
+ var mtype = mmodule.native_array_type(elttype)
self.require_declaration("NEW_{mtype.mclass.c_name}")
assert mtype isa MGenericType
var compiler = self.compiler
+ length = autobox(length, compiler.mainmodule.int_type)
if mtype.need_anchor then
hardening_live_open_type(mtype)
link_unresolved_type(self.frame.mpropdef.mclassdef, mtype)
var recv = self.frame.arguments.first
var recv_type_info = self.type_info(recv)
self.require_declaration(mtype.const_color)
- return self.new_expr("NEW_{mtype.mclass.c_name}({length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype)
+ return self.new_expr("NEW_{mtype.mclass.c_name}((int){length}, {recv_type_info}->resolution_table->types[{mtype.const_color}])", mtype)
end
compiler.undead_types.add(mtype)
self.require_declaration("type_{mtype.c_name}")
- return self.new_expr("NEW_{mtype.mclass.c_name}({length}, &type_{mtype.c_name})", mtype)
+ return self.new_expr("NEW_{mtype.mclass.c_name}((int){length}, &type_{mtype.c_name})", mtype)
end
redef fun native_array_def(pname, ret_type, arguments)
do
var elttype = arguments.first.mtype
- var nclass = self.get_class("NativeArray")
+ var nclass = mmodule.native_array_class
var recv = "((struct instance_{nclass.c_name}*){arguments[0]})->values"
if pname == "[]" then
# Because the objects are boxed, return the box to avoid unnecessary (or broken) unboxing/reboxing
var res = self.new_expr("{recv}[{arguments[1]}]", compiler.mainmodule.object_type)
res.mcasttype = ret_type.as(not null)
self.ret(res)
- return
+ return true
else if pname == "[]=" then
self.add("{recv}[{arguments[1]}]={arguments[2]};")
- return
+ return true
else if pname == "length" then
self.ret(self.new_expr("((struct instance_{nclass.c_name}*){arguments[0]})->length", ret_type.as(not null)))
- return
+ return true
else if pname == "copy_to" then
var recv1 = "((struct instance_{nclass.c_name}*){arguments[1]})->values"
self.add("memmove({recv1}, {recv}, {arguments[2]}*sizeof({elttype.ctype}));")
- return
+ return true
+ else if pname == "memmove" then
+ # fun memmove(start: Int, length: Int, dest: NativeArray[E], dest_start: Int) is intern do
+ var recv1 = "((struct instance_{nclass.c_name}*){arguments[3]})->values"
+ self.add("memmove({recv1}+{arguments[4]}, {recv}+{arguments[1]}, {arguments[2]}*sizeof({elttype.ctype}));")
+ return true
end
+ return false
end
- redef fun calloc_array(ret_type, arguments)
+ redef fun native_array_get(nat, i)
do
- var mclass = self.get_class("ArrayCapable")
- var ft = mclass.mparameters.first
- var res = self.native_array_instance(ft, arguments[1])
- self.ret(res)
+ var nclass = mmodule.native_array_class
+ var recv = "((struct instance_{nclass.c_name}*){nat})->values"
+ # Because the objects are boxed, return the box to avoid unnecessary (or broken) unboxing/reboxing
+ var res = self.new_expr("{recv}[{i}]", compiler.mainmodule.object_type)
+ return res
+ end
+
+ redef fun native_array_set(nat, i, val)
+ do
+ var nclass = mmodule.native_array_class
+ var recv = "((struct instance_{nclass.c_name}*){nat})->values"
+ self.add("{recv}[{i}]={val};")
end
fun link_unresolved_type(mclassdef: MClassDef, mtype: MType) do
var sig = new FlatBuffer
sig.append("({called_recv.ctype} self")
for i in [0..called_signature.arity[ do
- var mtype = called_signature.mparameters[i].mtype
- if i == called_signature.vararg_rank then
- mtype = mmethoddef.mclassdef.mmodule.get_primitive_class("Array").get_mtype([mtype])
+ var mp = called_signature.mparameters[i]
+ var mtype = mp.mtype
+ if mp.is_vararg then
+ mtype = mmethoddef.mclassdef.mmodule.array_type(mtype)
end
sig.append(", {mtype.ctype} p{i}")
end
# The C type for the function pointer.
var c_funptrtype: String is lazy do return "{c_ret}(*){c_sig}"
- # The arguments, as generated by `compile_to_c`
- private var arguments: Array[RuntimeVariable] is noinit
-
redef fun compile_to_c(compiler)
do
var mmethoddef = self.mmethoddef
+ var sig = "{c_ret} {c_name}{c_sig}"
+ compiler.provide_declaration(self.c_name, "{sig};")
+
+ var rta = compiler.as(SeparateCompiler).runtime_type_analysis
+
var recv = self.mmethoddef.mclassdef.bound_mtype
var v = compiler.new_visitor
var selfvar = new RuntimeVariable("self", called_recv, recv)
var msignature = called_signature
var ret = called_signature.return_mtype
- var sig = new FlatBuffer
var comment = new FlatBuffer
- sig.append(c_ret)
- sig.append(" ")
- sig.append(self.c_name)
- sig.append(c_sig)
comment.append("({selfvar}: {selfvar.mtype}")
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])
+ var mp = msignature.mparameters[i]
+ var mtype = mp.mtype
+ if mp.is_vararg then
+ mtype = v.mmodule.array_type(mtype)
end
comment.append(", {mtype}")
var argvar = new RuntimeVariable("p{i}", mtype, mtype)
if ret != null then
comment.append(": {ret}")
end
- compiler.provide_declaration(self.c_name, "{sig};")
- self.arguments = arguments.to_a
v.add_decl("/* method {self} for {comment} */")
v.add_decl("{sig} \{")
assert subret != null
v.assign(frame.returnvar.as(not null), subret)
end
+ else if rta != null and not rta.live_mmodules.has(mmethoddef.mclassdef.mmodule) then
+ v.add_abort("FATAL: Dead method executed.")
else
mmethoddef.compile_inside_to_c(v, arguments)
end
fun compile_trampolines(compiler: SeparateCompiler)
do
var recv = self.mmethoddef.mclassdef.bound_mtype
- var selfvar = arguments.first
+ var selfvar = new RuntimeVariable("self", called_recv, recv)
var ret = called_signature.return_mtype
+ var arguments = ["self"]
+ for i in [0..called_signature.arity[ do arguments.add "p{i}"
- if mmethoddef.is_intro and recv.ctype == "val*" then
+ if mmethoddef.is_intro and not recv.is_c_primitive then
var m = mmethoddef.mproperty
var n2 = "CALL_" + m.const_color
compiler.provide_declaration(n2, "{c_ret} {n2}{c_sig};")
var v2 = compiler.new_visitor
v2.add "{c_ret} {n2}{c_sig} \{"
v2.require_declaration(m.const_color)
- var call = "(({c_funptrtype})({selfvar}->class->vft[{m.const_color}]))({arguments.join(", ")});"
+ var call = "(({c_funptrtype})({v2.class_info(selfvar)}->vft[{m.const_color}]))({arguments.join(", ")});"
if ret != null then
v2.add "return {call}"
else
v2.add "\}"
end
- if mmethoddef.has_supercall and recv.ctype == "val*" then
+ if mmethoddef.has_supercall and not recv.is_c_primitive then
var m = mmethoddef
var n2 = "CALL_" + m.const_color
compiler.provide_declaration(n2, "{c_ret} {n2}{c_sig};")
var v2 = compiler.new_visitor
v2.add "{c_ret} {n2}{c_sig} \{"
v2.require_declaration(m.const_color)
- var call = "(({c_funptrtype})({selfvar}->class->vft[{m.const_color}]))({arguments.join(", ")});"
+ var call = "(({c_funptrtype})({v2.class_info(selfvar)}->vft[{m.const_color}]))({arguments.join(", ")});"
if ret != null then
v2.add "return {call}"
else
# Are values of `self` tagged?
# If false, it means that the type is not primitive, or is boxed.
var is_tagged = false
+
+ # The tag value of the type
+ #
+ # ENSURE `is_tagged == (tag_value > 0)`
+ # ENSURE `not is_tagged == (tag_value == 0)`
+ var tag_value = 0
end
redef class MEntity
return super
end
end
+
+redef class AAttrPropdef
+ redef fun init_expr(v, recv)
+ do
+ super
+ if is_lazy and v.compiler.modelbuilder.toolcontext.opt_no_union_attribute.value then
+ var guard = self.mlazypropdef.mproperty
+ v.write_attribute(guard, recv, v.bool_instance(false))
+ end
+ end
+end
nitlanguage / nit.git / blobdiff