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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/parser.h" | 5 #include "vm/parser.h" |
| 6 | 6 |
| 7 #include "lib/invocation_mirror.h" | 7 #include "lib/invocation_mirror.h" |
| 8 #include "vm/bigint_operations.h" | 8 #include "vm/bigint_operations.h" |
| 9 #include "vm/class_finalizer.h" | 9 #include "vm/class_finalizer.h" |
| 10 #include "vm/compiler.h" | 10 #include "vm/compiler.h" |
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| 7518 // The field is not yet initialized and could not be initialized at compile | 7518 // The field is not yet initialized and could not be initialized at compile |
| 7519 // time. The getter will initialize the field. | 7519 // time. The getter will initialize the field. |
| 7520 return initializing_getter; | 7520 return initializing_getter; |
| 7521 } | 7521 } |
| 7522 // The field is initialized. | 7522 // The field is initialized. |
| 7523 if (field.is_const()) { | 7523 if (field.is_const()) { |
| 7524 ASSERT(field.value() != Object::sentinel().raw()); | 7524 ASSERT(field.value() != Object::sentinel().raw()); |
| 7525 ASSERT(field.value() != Object::transition_sentinel().raw()); | 7525 ASSERT(field.value() != Object::transition_sentinel().raw()); |
| 7526 return new LiteralNode(ident_pos, Instance::ZoneHandle(field.value())); | 7526 return new LiteralNode(ident_pos, Instance::ZoneHandle(field.value())); |
| 7527 } | 7527 } |
| 7528 // Access the field directly. | 7528 ASSERT(field.is_static()); |
| 7529 return new LoadStaticFieldNode(ident_pos, Field::ZoneHandle(field.raw())); | 7529 const Class& field_owner = Class::ZoneHandle(field.owner()); |
| 7530 const String& field_name = String::ZoneHandle(field.name()); | |
| 7531 const String& getter_name = String::Handle(Field::GetterName(field_name)); | |
| 7532 const Function& getter = | |
| 7533 Function::Handle(field_owner.LookupStaticFunction(getter_name)); | |
| 7534 // Never load field directly if there is a getter (deterministic AST). | |
| 7535 if (getter.IsNull()) { | |
| 7536 return new LoadStaticFieldNode(ident_pos, Field::ZoneHandle(field.raw())); | |
| 7537 } else { | |
| 7538 ASSERT(getter.kind() == RawFunction::kConstImplicitGetter); | |
| 7539 return new StaticGetterNode(ident_pos, | |
| 7540 NULL, // Receiver. | |
| 7541 false, // is_super_getter. | |
| 7542 field_owner, | |
| 7543 field_name); | |
| 7544 } | |
| 7530 } | 7545 } |
| 7531 | 7546 |
| 7532 | 7547 |
| 7533 AstNode* Parser::ParseStaticFieldAccess(const Class& cls, | 7548 AstNode* Parser::ParseStaticFieldAccess(const Class& cls, |
| 7534 const String& field_name, | 7549 const String& field_name, |
| 7535 intptr_t ident_pos, | 7550 intptr_t ident_pos, |
| 7536 bool consume_cascades) { | 7551 bool consume_cascades) { |
| 7537 TRACE_PARSER("ParseStaticFieldAccess"); | 7552 TRACE_PARSER("ParseStaticFieldAccess"); |
| 7538 AstNode* access = NULL; | 7553 AstNode* access = NULL; |
| 7539 const intptr_t call_pos = TokenPos(); | 7554 const intptr_t call_pos = TokenPos(); |
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| 8165 ErrorMsg("circular dependency while initializing static field '%s'", | 8180 ErrorMsg("circular dependency while initializing static field '%s'", |
| 8166 field_name.ToCString()); | 8181 field_name.ToCString()); |
| 8167 } else { | 8182 } else { |
| 8168 // The implicit static getter will throw the exception if necessary. | 8183 // The implicit static getter will throw the exception if necessary. |
| 8169 return new StaticGetterNode(TokenPos(), | 8184 return new StaticGetterNode(TokenPos(), |
| 8170 NULL, | 8185 NULL, |
| 8171 false, | 8186 false, |
| 8172 field_owner, | 8187 field_owner, |
| 8173 field_name); | 8188 field_name); |
| 8174 } | 8189 } |
| 8175 } else if (value.raw() == Object::sentinel().raw()) { | 8190 } |
|
hausner
2013/06/12 20:43:39
Why get rid of the else? I prefer it since it is e
srdjan
2013/06/12 21:32:08
Restored.
| |
| 8191 if (value.raw() == Object::sentinel().raw()) { | |
| 8176 // This field has not been referenced yet and thus the value has | 8192 // This field has not been referenced yet and thus the value has |
| 8177 // not been evaluated. If the field is const, call the static getter method | 8193 // not been evaluated. If the field is const, call the static getter method |
| 8178 // to evaluate the expression and canonicalize the value. | 8194 // to evaluate the expression and canonicalize the value. |
| 8179 if (field.is_const()) { | 8195 if (field.is_const()) { |
| 8180 field.set_value(Object::transition_sentinel()); | 8196 field.set_value(Object::transition_sentinel()); |
| 8181 const int kNumArguments = 0; // no arguments. | 8197 const int kNumArguments = 0; // no arguments. |
| 8182 const Function& func = | 8198 const Function& func = |
| 8183 Function::Handle(Resolver::ResolveStatic(field_owner, | 8199 Function::Handle(Resolver::ResolveStatic(field_owner, |
| 8184 getter_name, | 8200 getter_name, |
| 8185 kNumArguments, | 8201 kNumArguments, |
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| 10079 void Parser::SkipQualIdent() { | 10095 void Parser::SkipQualIdent() { |
| 10080 ASSERT(IsIdentifier()); | 10096 ASSERT(IsIdentifier()); |
| 10081 ConsumeToken(); | 10097 ConsumeToken(); |
| 10082 if (CurrentToken() == Token::kPERIOD) { | 10098 if (CurrentToken() == Token::kPERIOD) { |
| 10083 ConsumeToken(); // Consume the kPERIOD token. | 10099 ConsumeToken(); // Consume the kPERIOD token. |
| 10084 ExpectIdentifier("identifier expected after '.'"); | 10100 ExpectIdentifier("identifier expected after '.'"); |
| 10085 } | 10101 } |
| 10086 } | 10102 } |
| 10087 | 10103 |
| 10088 } // namespace dart | 10104 } // namespace dart |
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