import abstract_compiler
import layout_builders
import rapid_type_analysis
+import collect_super_sends
+import compiler_ffi
# Add separate compiler specific options
redef class ToolContext
end
redef class ModelBuilder
- fun run_separate_compiler(mainmodule: MModule, runtime_type_analysis: RapidTypeAnalysis)
+ fun run_separate_compiler(mainmodule: MModule, runtime_type_analysis: nullable RapidTypeAnalysis)
do
var time0 = get_time
self.toolcontext.info("*** GENERATING C ***", 1)
for t in mtypes do
compiler.compile_type_to_c(t)
end
+ # compile remaining types structures (useless but needed for the symbol resolution at link-time)
+ for t in compiler.undead_types do
+ if mtypes.has(t) then continue
+ compiler.compile_type_to_c(t)
+ end
compiler.display_stats
redef type VISITOR: SeparateCompilerVisitor
# The result of the RTA (used to know live types and methods)
- var runtime_type_analysis: RapidTypeAnalysis
+ var runtime_type_analysis: nullable RapidTypeAnalysis
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]
protected var method_layout: nullable Layout[PropertyLayoutElement]
protected var attr_layout: nullable Layout[MAttribute]
- init(mainmodule: MModule, mmbuilder: ModelBuilder, runtime_type_analysis: RapidTypeAnalysis) do
+ init(mainmodule: MModule, mmbuilder: ModelBuilder, runtime_type_analysis: nullable RapidTypeAnalysis) do
super(mainmodule, mmbuilder)
var file = new_file("nit.common")
self.header = new CodeWriter(file)
end
# lookup super calls and add it to the list of mmethods to build layout with
- var super_calls = runtime_type_analysis.live_super_sends
+ var super_calls
+ if runtime_type_analysis != null then
+ super_calls = runtime_type_analysis.live_super_sends
+ else
+ super_calls = modelbuilder.collect_super_sends
+ end
for mmethoddef in super_calls do
var mclass = mmethoddef.mclassdef.mclass
mmethods[mclass].add(mmethoddef)
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
- for mtype in mtypes do
- retrieve_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
return tables
end
- fun retrieve_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
- self.partial_types.add(ft)
- retrieve_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
# Globaly compile the type structure of a live type
fun compile_type_to_c(mtype: MType)
do
+ assert not mtype.need_anchor
+ var layout = self.type_layout
+ var is_live = mtype isa MClassType and runtime_type_analysis.live_types.has(mtype)
+ var is_cast_live = runtime_type_analysis.live_cast_types.has(mtype)
var c_name = mtype.c_name
var v = new SeparateCompilerVisitor(self)
v.add_decl("/* runtime type {mtype} */")
# const struct type_X
v.add_decl("const struct type type_{c_name} = \{")
- v.add_decl("{self.type_layout.ids[mtype]},")
+
+ # type id (for cast target)
+ if is_cast_live then
+ v.add_decl("{layout.ids[mtype]},")
+ else
+ v.add_decl("-1, /*CAST DEAD*/")
+ end
+
+ # type name
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]},")
+
+ # type color (for cast target)
+ if is_cast_live then
+ if layout isa PHLayout[MType, MType] then
+ v.add_decl("{layout.masks[mtype]},")
+ else
+ v.add_decl("{layout.pos[mtype]},")
+ end
else
- v.add_decl("{layout.pos[mtype]},")
+ v.add_decl("-1, /*CAST DEAD*/")
end
+
+ # is_nullable bit
if mtype isa MNullableType then
v.add_decl("1,")
else
v.add_decl("0,")
end
- if compile_type_resolution_table(mtype) then
- v.require_declaration("resolution_table_{c_name}")
- v.add_decl("&resolution_table_{c_name},")
+
+ # resolution table (for receiver)
+ if is_live then
+ var mclass_type = mtype
+ if mclass_type isa MNullableType then mclass_type = mclass_type.mtype
+ assert mclass_type isa MClassType
+ if resolution_tables[mclass_type].is_empty then
+ v.add_decl("NULL, /*NO RESOLUTIONS*/")
+ else
+ compile_type_resolution_table(mtype)
+ v.require_declaration("resolution_table_{c_name}")
+ v.add_decl("&resolution_table_{c_name},")
+ end
else
- v.add_decl("NULL,")
+ v.add_decl("NULL, /*DEAD*/")
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.type_layout.ids[stype]}, /* {stype} */")
+
+ # cast table (for receiver)
+ if is_live then
+ 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("{layout.ids[stype]}, /* {stype} */")
+ end
end
+ v.add_decl("\},")
+ else
+ v.add_decl("0, \{\}, /*DEAD TYPE*/")
end
- v.add_decl("\},")
v.add_decl("\};")
end
- fun compile_type_resolution_table(mtype: MType): Bool do
+ fun compile_type_resolution_table(mtype: MType) 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
var layout = self.resolution_layout
end
v.add_decl("\}")
v.add_decl("\};")
- return true
end
# Globally compile the table of the class mclass
var attrs = self.attr_tables[mclass]
var v = new_visitor
- var is_dead = not runtime_type_analysis.live_classes.has(mclass) and mtype.ctype == "val*" and mclass.name != "NativeArray"
+ var is_dead = runtime_type_analysis != null and not runtime_type_analysis.live_classes.has(mclass) and mtype.ctype == "val*" and mclass.name != "NativeArray"
v.add_decl("/* runtime class {c_name} */")
v.add("if({t} == NULL) \{")
v.add_abort("type null")
v.add("\}")
- v.add("if({t}->resolution_table == NULL) \{")
+ v.add("if({t}->table_size == 0) \{")
v.add("fprintf(stderr, \"Insantiation of a dead type: %s\\n\", {t}->name);")
v.add_abort("type dead")
v.add("\}")
end
print "\t{total}\t{holes}"
end
+
+ redef fun compile_nitni_structs
+ do
+ self.header.add_decl("struct nitni_instance \{struct instance *value;\};")
+ end
+
+ redef fun finalize_ffi_for_module(nmodule)
+ do
+ var old_module = self.mainmodule
+ self.mainmodule = nmodule.mmodule.as(not null)
+ super
+ self.mainmodule = old_module
+ end
end
# A visitor on the AST of property definition that generate the C code of a separate compilation process.
else if mtype.ctype == "val*" then
var valtype = value.mtype.as(MClassType)
var res = self.new_var(mtype)
- if not compiler.runtime_type_analysis.live_types.has(valtype) then
+ 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("printf(\"Dead code executed!\\n\"); show_backtrace(1);")
return res
end
self.add("{res} = BOX_{valtype.c_name}({value}); /* autobox from {value.mtype} to {mtype} */")
return res
+ else if value.mtype.cname_blind == "void*" and mtype.cname_blind == "void*" then
+ return value
else
# Bad things will appen!
var res = self.new_var(mtype)
private fun table_send(mmethod: MMethod, arguments: Array[RuntimeVariable], const_color: String): nullable RuntimeVariable
do
+ assert arguments.length == mmethod.intro.msignature.arity + 1 else debug("Invalid arity for {mmethod}. {arguments.length} arguments given.")
+
var res: nullable RuntimeVariable
var msignature = mmethod.intro.msignature.resolve_for(mmethod.intro.mclassdef.bound_mtype, mmethod.intro.mclassdef.bound_mtype, mmethod.intro.mclassdef.mmodule, true)
var ret = msignature.return_mtype
res = self.new_var(ret)
end
- var s = new Buffer
- var ss = new Buffer
+ var s = new FlatBuffer
+ var ss = new FlatBuffer
var recv = arguments.first
s.append("val*")
self.add("{res} = 1; /* {arg.inspect} cannot be null */")
end
else
- self.add_abort("Reciever is null")
+ self.add_abort("Receiver is null")
end
self.add("\} else \{")
end
redef fun call(mmethoddef, recvtype, arguments)
do
+ assert arguments.length == mmethoddef.msignature.arity + 1 else debug("Invalid arity for {mmethoddef}. {arguments.length} arguments given.")
+
var res: nullable RuntimeVariable
var ret = mmethoddef.msignature.return_mtype
if mmethoddef.mproperty.is_new then
end
end
+ # Check that mtype is a live open type
+ fun hardening_live_open_type(mtype: MType)
+ do
+ if not compiler.modelbuilder.toolcontext.opt_hardening.value then return
+ self.require_declaration(mtype.const_color)
+ var col = mtype.const_color
+ self.add("if({col} == -1) \{")
+ self.add("fprintf(stderr, \"Resolution of a dead open type: %s\\n\", \"{mtype.to_s.escape_to_c}\");")
+ self.add_abort("open type dead")
+ self.add("\}")
+ end
+
+ # Check that mtype it a pointer to a live cast type
+ fun hardening_cast_type(t: String)
+ do
+ if not compiler.modelbuilder.toolcontext.opt_hardening.value then return
+ add("if({t} == NULL) \{")
+ add_abort("cast type null")
+ add("\}")
+ add("if({t}->id == -1 || {t}->color == -1) \{")
+ add("fprintf(stderr, \"Try to cast on a dead cast type: %s\\n\", {t}->name);")
+ add_abort("cast type dead")
+ add("\}")
+ end
+
redef fun init_instance(mtype)
do
self.require_declaration("NEW_{mtype.mclass.c_name}")
var compiler = self.compiler
if mtype isa MGenericType and 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.add_decl("const struct type* {type_struct};")
# Either with resolution_table with a direct resolution
- link_unresolved_type(self.frame.mpropdef.mclassdef, ntype)
- self.require_declaration(ntype.const_color)
+ hardening_live_open_type(mtype)
+ link_unresolved_type(self.frame.mpropdef.mclassdef, mtype)
+ self.require_declaration(mtype.const_color)
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})];")
+ self.add("{type_struct} = {recv_type_info}->resolution_table->types[HASH({recv_type_info}->resolution_table->mask, {mtype.const_color})];")
else
- self.add("{type_struct} = {recv_type_info}->resolution_table->types[{ntype.const_color}];")
+ self.add("{type_struct} = {recv_type_info}->resolution_table->types[{mtype.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
+ hardening_cast_type(type_struct)
self.add("{cltype} = {type_struct}->color;")
self.add("{idtype} = {type_struct}->id;")
if maybe_null and accept_null == "0" then
else if ntype isa MClassType then
compiler.undead_types.add(mtype)
self.require_declaration("type_{mtype.c_name}")
+ hardening_cast_type("(&type_{mtype.c_name})")
self.add("{cltype} = type_{mtype.c_name}.color;")
self.add("{idtype} = type_{mtype.c_name}.id;")
if compiler.modelbuilder.toolcontext.opt_typing_test_metrics.value then
assert mtype isa MGenericType
var compiler = self.compiler
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)
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 sig = new FlatBuffer
+ var comment = new FlatBuffer
var ret = msignature.return_mtype
if ret != null then
sig.append("{ret.ctype} ")
var frame = new Frame(v, mmethoddef, recv, arguments)
v.frame = frame
- var sig = new Buffer
- var comment = new Buffer
+ var sig = new FlatBuffer
+ var comment = new FlatBuffer
# Because the function is virtual, the signature must match the one of the original class
var intromclassdef = self.mmethoddef.mproperty.intro.mclassdef
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