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Unified Diff: runtime/vm/object.cc

Issue 8872037: Adjust index of type parameters at finalization time (fix issue 718). (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: '' Created 9 years ago
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Index: runtime/vm/object.cc
===================================================================
--- runtime/vm/object.cc (revision 2282)
+++ runtime/vm/object.cc (working copy)
@@ -1366,9 +1366,9 @@
// The type arguments of this type that are referred to by the type
// parameters of the interface are at the end of the type vector,
// after the type arguments of the super type of this type.
- const intptr_t offset = NumTypeArguments() - NumTypeParameters();
- interface_args = interface_args.InstantiateFrom(type_arguments,
- offset);
+ // The index of the type parameters is adjusted upon finalization.
+ ASSERT(interface.IsFinalized());
+ interface_args = interface_args.InstantiateFrom(type_arguments);
// TODO(regis): Check the subtyping constraints if any, i.e. if
// interface.type_parameter_extends() is not an array of DynamicType.
// Should we pass the constraints to InstantiateFrom and it would
@@ -1746,8 +1746,7 @@
RawAbstractType* AbstractType::InstantiateFrom(
- const AbstractTypeArguments& instantiator_type_arguments,
- intptr_t offset) const {
+ const AbstractTypeArguments& instantiator_type_arguments) const {
// AbstractType is an abstract class.
UNREACHABLE();
return NULL;
@@ -1794,8 +1793,9 @@
}
const Function& signature_function = Function::Handle(
cls.signature_function());
- return signature_function.InstantiatedSignatureFrom(
- args, first_type_param_index);
+ // Signature classes have no super type.
+ ASSERT(first_type_param_index == 0);
+ return signature_function.InstantiatedSignatureFrom(args);
}
} else {
const UnresolvedClass& cls = UnresolvedClass::Handle(unresolved_class());
@@ -2095,14 +2095,12 @@
RawAbstractType* Type::InstantiateFrom(
- const AbstractTypeArguments& instantiator_type_arguments,
- intptr_t offset) const {
+ const AbstractTypeArguments& instantiator_type_arguments) const {
ASSERT(IsFinalized());
ASSERT(!IsInstantiated());
AbstractTypeArguments& type_arguments =
AbstractTypeArguments::Handle(arguments());
- type_arguments = type_arguments.InstantiateFrom(instantiator_type_arguments,
- offset);
+ type_arguments = type_arguments.InstantiateFrom(instantiator_type_arguments);
const Class& cls = Class::Handle(type_class());
ASSERT(cls.is_finalized());
Type& instantiated_type = Type::Handle(Type::New(cls, type_arguments));
@@ -2247,6 +2245,12 @@
}
+void TypeParameter::set_is_finalized() const {
+ ASSERT(!IsFinalized());
+ set_type_state(RawTypeParameter::kFinalized);
+}
+
+
bool TypeParameter::Equals(const AbstractType& other) const {
if (raw() == other.raw()) {
return true;
@@ -2273,12 +2277,12 @@
RawAbstractType* TypeParameter::InstantiateFrom(
- const AbstractTypeArguments& instantiator_type_arguments,
- intptr_t offset) const {
+ const AbstractTypeArguments& instantiator_type_arguments) const {
+ ASSERT(IsFinalized());
if (instantiator_type_arguments.IsNull()) {
return Type::DynamicType();
}
- return instantiator_type_arguments.TypeAt(Index() + offset);
+ return instantiator_type_arguments.TypeAt(Index());
}
@@ -2296,10 +2300,19 @@
const TypeParameter& result = TypeParameter::Handle(TypeParameter::New());
result.set_index(index);
result.set_name(name);
+ result.raw_ptr()->type_state_ = RawTypeParameter::kAllocated;
return result.raw();
}
+void TypeParameter::set_type_state(int8_t state) const {
+ ASSERT(state == RawTypeParameter::kAllocated ||
+ state == RawTypeParameter::kBeingFinalized ||
+ state == RawTypeParameter::kFinalized);
+ raw_ptr()->type_state_ = state;
+}
+
+
const char* TypeParameter::ToCString() const {
const char* format = "TypeParameter: name %s; index: %d";
const char* name_cstr = String::Handle(Name()).ToCString();
@@ -2442,8 +2455,7 @@
RawAbstractTypeArguments* AbstractTypeArguments::InstantiateFrom(
- const AbstractTypeArguments& instantiator_type_arguments,
- intptr_t offset) const {
+ const AbstractTypeArguments& instantiator_type_arguments) const {
// AbstractTypeArguments is an abstract class.
UNREACHABLE();
return NULL;
@@ -2558,11 +2570,9 @@
RawAbstractTypeArguments* TypeArguments::InstantiateFrom(
- const AbstractTypeArguments& instantiator_type_arguments,
- intptr_t offset) const {
+ const AbstractTypeArguments& instantiator_type_arguments) const {
ASSERT(!IsInstantiated());
- if ((offset == 0) &&
- !instantiator_type_arguments.IsNull() &&
+ if (!instantiator_type_arguments.IsNull() &&
IsUninstantiatedIdentity() &&
(instantiator_type_arguments.Length() == Length())) {
return instantiator_type_arguments.raw();
@@ -2574,7 +2584,7 @@
for (intptr_t i = 0; i < num_types; i++) {
type = TypeAt(i);
if (!type.IsInstantiated()) {
- type = type.InstantiateFrom(instantiator_type_arguments, offset);
+ type = type.InstantiateFrom(instantiator_type_arguments);
}
instantiated_array.SetTypeAt(i, type);
}
@@ -3053,7 +3063,7 @@
AbstractType& param_type =
AbstractType::Handle(ParameterTypeAt(parameter_position));
if (!param_type.IsInstantiated()) {
- param_type = param_type.InstantiateFrom(type_arguments, 0);
+ param_type = param_type.InstantiateFrom(type_arguments);
}
if (param_type.IsDynamicType()) {
return true;
@@ -3061,8 +3071,7 @@
AbstractType& other_param_type =
AbstractType::Handle(other.ParameterTypeAt(parameter_position));
if (!other_param_type.IsInstantiated()) {
- other_param_type =
- other_param_type.InstantiateFrom(other_type_arguments, 0);
+ other_param_type = other_param_type.InstantiateFrom(other_type_arguments);
}
if (other_param_type.IsDynamicType()) {
return true;
@@ -3092,12 +3101,12 @@
// Check the result type.
AbstractType& other_res_type = AbstractType::Handle(other.result_type());
if (!other_res_type.IsInstantiated()) {
- other_res_type = other_res_type.InstantiateFrom(other_type_arguments, 0);
+ other_res_type = other_res_type.InstantiateFrom(other_type_arguments);
}
if (!other_res_type.IsDynamicType() && !other_res_type.IsVoidType()) {
AbstractType& res_type = AbstractType::Handle(result_type());
if (!res_type.IsInstantiated()) {
- res_type = res_type.InstantiateFrom(type_arguments, 0);
+ res_type = res_type.InstantiateFrom(type_arguments);
}
if (!res_type.IsDynamicType() &&
(res_type.IsVoidType() ||
@@ -3277,7 +3286,9 @@
const Type& signature_type = Type::Handle(signature_class.SignatureType());
if (!signature_type.IsFinalized()) {
String& errmsg = String::Handle();
- ClassFinalizer::FinalizeAndCanonicalizeType(signature_type, &errmsg);
+ ClassFinalizer::FinalizeAndCanonicalizeType(signature_class,
+ signature_type,
+ &errmsg);
ASSERT(errmsg.IsNull());
}
ASSERT(closure_function.signature_class() == signature_class.raw());
@@ -3297,9 +3308,9 @@
}
-RawString* Function::BuildSignature(bool instantiate,
- const AbstractTypeArguments& instantiator,
- intptr_t offset) const {
+RawString* Function::BuildSignature(
+ bool instantiate,
+ const AbstractTypeArguments& instantiator) const {
GrowableArray<const String*> pieces;
const String& kCommaSpace = String::Handle(String::NewSymbol(", "));
const String& kColonSpace = String::Handle(String::NewSymbol(": "));
@@ -3348,7 +3359,7 @@
param_type = ParameterTypeAt(i);
ASSERT(!param_type.IsNull());
if (instantiate && !param_type.IsInstantiated()) {
- param_type = param_type.InstantiateFrom(instantiator, offset);
+ param_type = param_type.InstantiateFrom(instantiator);
}
pieces.Add(&String::ZoneHandle(param_type.Name()));
if (i != (num_params - 1)) {
@@ -3362,7 +3373,7 @@
pieces.Add(&kColonSpace);
param_type = ParameterTypeAt(i);
if (instantiate && !param_type.IsInstantiated()) {
- param_type = param_type.InstantiateFrom(instantiator, offset);
+ param_type = param_type.InstantiateFrom(instantiator);
}
ASSERT(!param_type.IsNull());
pieces.Add(&String::ZoneHandle(param_type.Name()));
@@ -3375,7 +3386,7 @@
pieces.Add(&kRParen);
AbstractType& res_type = AbstractType::Handle(result_type());
if (instantiate && !res_type.IsInstantiated()) {
- res_type = res_type.InstantiateFrom(instantiator, offset);
+ res_type = res_type.InstantiateFrom(instantiator);
}
pieces.Add(&String::Handle(res_type.Name()));
const Array& strings = Array::Handle(NewArray<const String>(pieces));
@@ -5124,7 +5135,7 @@
Class& other_class = Class::Handle();
AbstractTypeArguments& other_type_arguments = AbstractTypeArguments::Handle();
// In case 'other' is not instantiated, we could simply call
- // other.InstantiateFrom(other_instantiator, 0), however, we can save the
+ // other.InstantiateFrom(other_instantiator), however, we can save the
// allocation of a new AbstractType by inlining the code.
if (other.IsTypeParameter()) {
AbstractType& instantiated_other = AbstractType::Handle();
@@ -5142,7 +5153,7 @@
if (!other_type_arguments.IsNull() &&
!other_type_arguments.IsInstantiated()) {
other_type_arguments =
- other_type_arguments.InstantiateFrom(other_instantiator, 0);
+ other_type_arguments.InstantiateFrom(other_instantiator);
}
}
return cls.TestType(test, type_arguments, other_class, other_type_arguments);
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