end
end
- var separate_compiler_phase = new SeparateCompilerPhase(self, null)
+ var separate_compiler_phase = new SeparateCompilerPhase(self, [contracts_phase])
end
class SeparateCompilerPhase
v.add_decl("\};")
end
- # Globally compile the table of the class mclass
- # In a link-time optimisation compiler, tables are globally computed
- # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
- fun compile_class_to_c(mclass: MClass)
+ protected fun compile_class_vft(ccinfo: ClassCompilationInfo, v: SeparateCompilerVisitor)
do
- if mclass.is_broken then return
-
- var mtype = mclass.intro.bound_mtype
- var c_name = mclass.c_name
-
- var v = new_visitor
-
+ var mclass = ccinfo.mclass
+ var mtype = ccinfo.mtype
var rta = runtime_type_analysis
- 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
+ var c_name = ccinfo.mclass.c_name
+ var is_dead = ccinfo.is_dead
+ var need_corpse = ccinfo.need_corpse
v.add_decl("/* runtime class {c_name}: {mclass.full_name} (dead={is_dead}; need_corpse={need_corpse})*/")
v.add_decl("\}")
v.add_decl("\};")
end
+ end
+
+ # Given a `MClass`, if it's a universal class and if it needs to be handle
+ # specifically by the compiler, this function will compile it and return
+ # true. Otherwise, no C code will be written in the visitor and the value
+ # false will be returned.
+ fun compile_class_if_universal(ccinfo: ClassCompilationInfo, v: SeparateCompilerVisitor): Bool
+ do
+ var mclass = ccinfo.mclass
+ var mtype = ccinfo.mtype
+ var c_name = ccinfo.mclass.c_name
+ var is_dead = ccinfo.is_dead
+ var need_corpse = ccinfo.need_corpse
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
+ if mtype.is_tagged then return true
#Build instance struct
self.header.add_decl("struct instance_{c_name} \{")
self.header.add_decl("\};")
# Pointer is needed by extern types, live or not
- if is_dead and mtype.mclass.name != "Pointer" then return
+ if is_dead and mtype.mclass.name != "Pointer" then return true
#Build BOX
self.provide_declaration("BOX_{c_name}", "val* BOX_{c_name}({mtype.ctype_extern});")
v.add("\}")
# A Pointer class also need its constructor
- if mtype.mclass.name != "Pointer" then return
+ if mtype.mclass.name != "Pointer" then return true
v = new_visitor
self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
v.add("return {res};")
end
v.add("\}")
- return
+ return true
else if mclass.name == "NativeArray" then
#Build instance struct
self.header.add_decl("struct instance_{c_name} \{")
v.add("{res}->length = length;")
v.add("return (val*){res};")
v.add("\}")
- return
+ return true
else if mclass.name == "RoutineRef" then
self.header.add_decl("struct instance_{c_name} \{")
self.header.add_decl("const struct type *type;")
v.add("{res}->method = method;")
v.add("return (val*){res};")
v.add("\}")
- return
+ return true
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
v.add("return {res};")
end
v.add("\}")
- return
+ return true
end
+ return false
+ end
+
+ protected fun compile_default_new(ccinfo: ClassCompilationInfo, v: SeparateCompilerVisitor)
+ do
+ var mclass = ccinfo.mclass
+ var mtype = ccinfo.mtype
+ var c_name = ccinfo.mclass.c_name
+ var is_dead = ccinfo.is_dead
#Build NEW
self.provide_declaration("NEW_{c_name}", "{mtype.ctype} NEW_{c_name}(const struct type* type);")
v.add("return {res};")
end
v.add("\}")
+
+ end
+
+ protected fun build_class_compilation_info(mclass: MClass): ClassCompilationInfo
+ do
+ var mtype = mclass.intro.bound_mtype
+ var rta = runtime_type_analysis
+ 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
+
+ var compilation_info = new ClassCompilationInfo(mclass, is_dead, need_corpse)
+ return compilation_info
+ end
+
+ # Globally compile the table of the class mclass
+ # In a link-time optimisation compiler, tables are globally computed
+ # In a true separate compiler (a with dynamic loading) you cannot do this unfortnally
+ fun compile_class_to_c(mclass: MClass)
+ do
+ var v = new_visitor
+ var class_info = build_class_compilation_info(mclass)
+ compile_class_vft(class_info, v)
+ var is_already_managed = compile_class_if_universal(class_info, v)
+ if not is_already_managed then
+ compile_default_new(class_info, v)
+ end
end
# Compile structures used to map tagged primitive values to their classes and types.
self.add("{recv}[{i}]={val};")
end
- redef fun routine_ref_instance(routine_type, recv, mmethoddef)
+ redef fun routine_ref_instance(routine_type, recv, callsite)
do
#debug "ENTER ref_instance"
+ var mmethoddef = callsite.mpropdef
var mmethod = mmethoddef.mproperty
# routine_mclass is the specialized one, e.g: FunRef1, ProcRef2, etc..
var routine_mclass = routine_type.mclass
# The class of the concrete Routine must exist (e.g ProcRef0, FunRef0, etc.)
self.require_declaration("class_{routine_mclass.c_name}")
- self.require_declaration("type_{routine_type.c_name}")
-
- compiler.undead_types.add(routine_type)
self.require_declaration(mmethoddef.c_name)
var thunk_function = mmethoddef.callref_thunk(my_recv_mclass_type)
self.require_declaration(thunk_function.c_name)
compiler.thunk_todo(thunk_function)
end
-
- # Each RoutineRef points to a receiver AND a callref_thunk
- var res = self.new_expr("NEW_{base_routine_mclass.c_name}({my_recv}, (nitmethod_t){c_ref}, &class_{routine_mclass.c_name}, &type_{routine_type.c_name})", routine_type)
- #debug "LEAVING ref_instance"
+ var res: RuntimeVariable
+ if routine_type.need_anchor then
+ hardening_live_open_type(routine_type)
+ link_unresolved_type(self.frame.mpropdef.mclassdef, routine_type)
+ var recv2 = self.frame.arguments.first
+ var recv2_type_info = self.type_info(recv2)
+ self.require_declaration(routine_type.const_color)
+ res = self.new_expr("NEW_{base_routine_mclass.c_name}({my_recv}, (nitmethod_t){c_ref}, &class_{routine_mclass.c_name}, {recv2_type_info}->resolution_table->types[{routine_type.const_color}])", routine_type)
+ else
+ self.require_declaration("type_{routine_type.c_name}")
+ compiler.undead_types.add(routine_type)
+ res = self.new_expr("NEW_{base_routine_mclass.c_name}({my_recv}, (nitmethod_t){c_ref}, &class_{routine_mclass.c_name}, &type_{routine_type.c_name})", routine_type)
+ end
return res
end
end
end
+# Encapsulates every information needed to compile a class.
+#
+# The compilation of a class is done by several methods, two of those are
+# mandatory :
+# - compile_class_to_c : starts the compilation process
+# - compile_class_vft : generate the virtual function table
+# And one of them is optional :
+# - compile_class_if_universal : compiles the rest of the class if its a universal
+# type. Universal type are handle in a case-basis, this is why they need special treatment.
+# Generally, universal class will have special structure and a custom allocator.
+#
+# Throughout each step of the class compilation process, some information must be share.
+# This class encapsulates the compilation process state.
+# (except vft), eg
+class ClassCompilationInfo
+ var mclass: MClass # class to compile
+ var is_dead: Bool
+ var need_corpse: Bool
+
+ # Shortcut to access the class's bound type.
+ var mtype: MClassType is noinit
+
+ init
+ do
+ mtype = mclass.intro.bound_mtype
+ end
+end
+
class SeparateThunkFunction
super ThunkFunction
super SeparateRuntimeFunction
nitlanguage / nit.git / blobdiff