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Issue 1167393005: [destructuring] Parse binding patterns in formal parameters. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebase + tests Created 5 years, 6 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_PARSER_H_ 5 #ifndef V8_PARSER_H_
6 #define V8_PARSER_H_ 6 #define V8_PARSER_H_
7 7
8 #include "src/allocation.h" 8 #include "src/allocation.h"
9 #include "src/ast.h" 9 #include "src/ast.h"
10 #include "src/compiler.h" // TODO(titzer): remove this include dependency 10 #include "src/compiler.h" // TODO(titzer): remove this include dependency
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747 } 747 }
748 ZoneList<ObjectLiteral::Property*>* NewPropertyList(int size, Zone* zone) { 748 ZoneList<ObjectLiteral::Property*>* NewPropertyList(int size, Zone* zone) {
749 return new(zone) ZoneList<ObjectLiteral::Property*>(size, zone); 749 return new(zone) ZoneList<ObjectLiteral::Property*>(size, zone);
750 } 750 }
751 ZoneList<v8::internal::Statement*>* NewStatementList(int size, Zone* zone) { 751 ZoneList<v8::internal::Statement*>* NewStatementList(int size, Zone* zone) {
752 return new(zone) ZoneList<v8::internal::Statement*>(size, zone); 752 return new(zone) ZoneList<v8::internal::Statement*>(size, zone);
753 } 753 }
754 V8_INLINE Scope* NewScope(Scope* parent_scope, ScopeType scope_type, 754 V8_INLINE Scope* NewScope(Scope* parent_scope, ScopeType scope_type,
755 FunctionKind kind = kNormalFunction); 755 FunctionKind kind = kNormalFunction);
756 756
757 V8_INLINE void DeclareFormalParameter(Scope* scope, const AstRawString* name, 757 V8_INLINE void DeclareFormalParameter(Scope* scope, Expression* name,
758 ExpressionClassifier* classifier, 758 ExpressionClassifier* classifier,
759 bool is_rest); 759 bool is_rest);
760 void ParseArrowFunctionFormalParameters(Scope* scope, Expression* params, 760 void ParseArrowFunctionFormalParameters(Scope* scope, Expression* params,
761 const Scanner::Location& params_loc, 761 const Scanner::Location& params_loc,
762 bool* has_rest, 762 bool* has_rest,
763 Scanner::Location* duplicate_loc, 763 Scanner::Location* duplicate_loc,
764 bool* ok); 764 bool* ok);
765 765
766 // Temporary glue; these functions will move to ParserBase. 766 // Temporary glue; these functions will move to ParserBase.
767 Expression* ParseV8Intrinsic(bool* ok); 767 Expression* ParseV8Intrinsic(bool* ok);
(...skipping 495 matching lines...) Expand 10 before | Expand all | Expand 10 after
1263 return parser_->SpreadCall(function, args, pos); 1263 return parser_->SpreadCall(function, args, pos);
1264 } 1264 }
1265 1265
1266 1266
1267 Expression* ParserTraits::SpreadCallNew( 1267 Expression* ParserTraits::SpreadCallNew(
1268 Expression* function, ZoneList<v8::internal::Expression*>* args, int pos) { 1268 Expression* function, ZoneList<v8::internal::Expression*>* args, int pos) {
1269 return parser_->SpreadCallNew(function, args, pos); 1269 return parser_->SpreadCallNew(function, args, pos);
1270 } 1270 }
1271 1271
1272 1272
1273 void ParserTraits::DeclareFormalParameter(Scope* scope, 1273 void ParserTraits::DeclareFormalParameter(Scope* scope, Expression* pattern,
1274 const AstRawString* name,
1275 ExpressionClassifier* classifier, 1274 ExpressionClassifier* classifier,
1276 bool is_rest) { 1275 bool is_rest) {
1277 bool is_duplicate = false; 1276 bool is_duplicate = false;
1277 if (!pattern->IsVariableProxy()) {
1278 // TODO(dslomov): implement.
1279 DCHECK(parser_->allow_harmony_destructuring());
1280 return;
1281 }
1282 auto name = pattern->AsVariableProxy()->raw_name();
1278 Variable* var = scope->DeclareParameter(name, VAR, is_rest, &is_duplicate); 1283 Variable* var = scope->DeclareParameter(name, VAR, is_rest, &is_duplicate);
1279 if (is_sloppy(scope->language_mode())) { 1284 if (is_sloppy(scope->language_mode())) {
1280 // TODO(sigurds) Mark every parameter as maybe assigned. This is a 1285 // TODO(sigurds) Mark every parameter as maybe assigned. This is a
1281 // conservative approximation necessary to account for parameters 1286 // conservative approximation necessary to account for parameters
1282 // that are assigned via the arguments array. 1287 // that are assigned via the arguments array.
1283 var->set_maybe_assigned(); 1288 var->set_maybe_assigned();
1284 } 1289 }
1285 if (is_duplicate) { 1290 if (is_duplicate) {
1286 classifier->RecordDuplicateFormalParameterError( 1291 classifier->RecordDuplicateFormalParameterError(
1287 parser_->scanner()->location()); 1292 parser_->scanner()->location());
1288 } 1293 }
1289 } 1294 }
1290 } } // namespace v8::internal 1295 } } // namespace v8::internal
1291 1296
1292 #endif // V8_PARSER_H_ 1297 #endif // V8_PARSER_H_
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