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Issue 652543006: Revert "Assign bailout and type feedback IDs in a post-pass" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 2 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 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/rewriter.h" 7 #include "src/rewriter.h"
8 8
9 #include "src/ast.h" 9 #include "src/ast.h"
10 #include "src/compiler.h" 10 #include "src/compiler.h"
11 #include "src/scopes.h" 11 #include "src/scopes.h"
12 12
13 namespace v8 { 13 namespace v8 {
14 namespace internal { 14 namespace internal {
15 15
16 class Processor: public AstVisitor { 16 class Processor: public AstVisitor {
17 public: 17 public:
18 Processor(Variable* result, AstValueFactory* ast_value_factory) 18 Processor(Variable* result, Zone* zone, AstNode::IdGen* ast_node_id_gen)
19 : result_(result), 19 : result_(result),
20 result_assigned_(false), 20 result_assigned_(false),
21 is_set_(false), 21 is_set_(false),
22 in_try_(false), 22 in_try_(false),
23 factory_(ast_value_factory) { 23 // Passing a null AstValueFactory is fine, because Processor doesn't
24 InitializeAstVisitor(ast_value_factory->zone()); 24 // need to create strings or literals.
25 factory_(zone, NULL, ast_node_id_gen) {
26 InitializeAstVisitor(zone);
25 } 27 }
26 28
27 virtual ~Processor() { } 29 virtual ~Processor() { }
28 30
29 void Process(ZoneList<Statement*>* statements); 31 void Process(ZoneList<Statement*>* statements);
30 bool result_assigned() const { return result_assigned_; } 32 bool result_assigned() const { return result_assigned_; }
31 33
32 AstNodeFactory<AstNullVisitor>* factory() { 34 AstNodeFactory<AstNullVisitor>* factory() {
33 return &factory_; 35 return &factory_;
34 } 36 }
(...skipping 196 matching lines...) Expand 10 before | Expand all | Expand 10 after
231 Scope* scope = function->scope(); 233 Scope* scope = function->scope();
232 DCHECK(scope != NULL); 234 DCHECK(scope != NULL);
233 if (!scope->is_global_scope() && !scope->is_eval_scope()) return true; 235 if (!scope->is_global_scope() && !scope->is_eval_scope()) return true;
234 236
235 ZoneList<Statement*>* body = function->body(); 237 ZoneList<Statement*>* body = function->body();
236 if (!body->is_empty()) { 238 if (!body->is_empty()) {
237 Variable* result = 239 Variable* result =
238 scope->NewTemporary(info->ast_value_factory()->dot_result_string()); 240 scope->NewTemporary(info->ast_value_factory()->dot_result_string());
239 // The name string must be internalized at this point. 241 // The name string must be internalized at this point.
240 DCHECK(!result->name().is_null()); 242 DCHECK(!result->name().is_null());
241 Processor processor(result, info->ast_value_factory()); 243 Processor processor(result, info->zone(), info->ast_node_id_gen());
242 processor.Process(body); 244 processor.Process(body);
243 if (processor.HasStackOverflow()) return false; 245 if (processor.HasStackOverflow()) return false;
244 246
245 if (processor.result_assigned()) { 247 if (processor.result_assigned()) {
246 DCHECK(function->end_position() != RelocInfo::kNoPosition); 248 DCHECK(function->end_position() != RelocInfo::kNoPosition);
247 // Set the position of the assignment statement one character past the 249 // Set the position of the assignment statement one character past the
248 // source code, such that it definitely is not in the source code range 250 // source code, such that it definitely is not in the source code range
249 // of an immediate inner scope. For example in 251 // of an immediate inner scope. For example in
250 // eval('with ({x:1}) x = 1'); 252 // eval('with ({x:1}) x = 1');
251 // the end position of the function generated for executing the eval code 253 // the end position of the function generated for executing the eval code
252 // coincides with the end of the with scope which is the position of '1'. 254 // coincides with the end of the with scope which is the position of '1'.
253 int pos = function->end_position(); 255 int pos = function->end_position();
254 VariableProxy* result_proxy = 256 VariableProxy* result_proxy =
255 processor.factory()->NewVariableProxy(result, pos); 257 processor.factory()->NewVariableProxy(result, pos);
256 Statement* result_statement = 258 Statement* result_statement =
257 processor.factory()->NewReturnStatement(result_proxy, pos); 259 processor.factory()->NewReturnStatement(result_proxy, pos);
258 body->Add(result_statement, info->zone()); 260 body->Add(result_statement, info->zone());
259 } 261 }
260 } 262 }
261 263
262 return true; 264 return true;
263 } 265 }
264 266
265 267
266 } } // namespace v8::internal 268 } } // namespace v8::internal
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