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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_SCOPES_H_ | 5 #ifndef V8_SCOPES_H_ |
6 #define V8_SCOPES_H_ | 6 #define V8_SCOPES_H_ |
7 | 7 |
8 #include "src/ast.h" | 8 #include "src/ast.h" |
9 #include "src/pending-compilation-error-handler.h" | 9 #include "src/pending-compilation-error-handler.h" |
10 #include "src/zone.h" | 10 #include "src/zone.h" |
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205 | 205 |
206 // --------------------------------------------------------------------------- | 206 // --------------------------------------------------------------------------- |
207 // Scope-specific info. | 207 // Scope-specific info. |
208 | 208 |
209 // Inform the scope that the corresponding code contains a with statement. | 209 // Inform the scope that the corresponding code contains a with statement. |
210 void RecordWithStatement() { scope_contains_with_ = true; } | 210 void RecordWithStatement() { scope_contains_with_ = true; } |
211 | 211 |
212 // Inform the scope that the corresponding code contains an eval call. | 212 // Inform the scope that the corresponding code contains an eval call. |
213 void RecordEvalCall() { if (!is_script_scope()) scope_calls_eval_ = true; } | 213 void RecordEvalCall() { if (!is_script_scope()) scope_calls_eval_ = true; } |
214 | 214 |
215 // Inform the scope that the corresponding code uses "arguments". | |
216 void RecordArgumentsUsage() { scope_uses_arguments_ = true; } | |
217 | |
218 // Inform the scope that the corresponding code uses "super". | 215 // Inform the scope that the corresponding code uses "super". |
219 void RecordSuperPropertyUsage() { scope_uses_super_property_ = true; } | 216 void RecordSuperPropertyUsage() { scope_uses_super_property_ = true; } |
220 | 217 |
221 // Set the language mode flag (unless disabled by a global flag). | 218 // Set the language mode flag (unless disabled by a global flag). |
222 void SetLanguageMode(LanguageMode language_mode) { | 219 void SetLanguageMode(LanguageMode language_mode) { |
223 language_mode_ = language_mode; | 220 language_mode_ = language_mode; |
224 } | 221 } |
225 | 222 |
226 // Set the ASM module flag. | 223 // Set the ASM module flag. |
227 void SetAsmModule() { asm_module_ = true; } | 224 void SetAsmModule() { asm_module_ = true; } |
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304 return outer_scope_calls_sloppy_eval_; | 301 return outer_scope_calls_sloppy_eval_; |
305 } | 302 } |
306 bool asm_module() const { return asm_module_; } | 303 bool asm_module() const { return asm_module_; } |
307 bool asm_function() const { return asm_function_; } | 304 bool asm_function() const { return asm_function_; } |
308 | 305 |
309 // Is this scope inside a with statement. | 306 // Is this scope inside a with statement. |
310 bool inside_with() const { return scope_inside_with_; } | 307 bool inside_with() const { return scope_inside_with_; } |
311 // Does this scope contain a with statement. | 308 // Does this scope contain a with statement. |
312 bool contains_with() const { return scope_contains_with_; } | 309 bool contains_with() const { return scope_contains_with_; } |
313 | 310 |
314 // Does this scope access "arguments". | |
315 bool uses_arguments() const { return scope_uses_arguments_; } | |
316 // Does any inner scope access "arguments". | |
317 bool inner_uses_arguments() const { return inner_scope_uses_arguments_; } | |
318 // Does this scope access "super" property (super.foo). | 311 // Does this scope access "super" property (super.foo). |
319 bool uses_super_property() const { return scope_uses_super_property_; } | 312 bool uses_super_property() const { return scope_uses_super_property_; } |
320 // Does any inner scope access "super" property. | 313 // Does any inner scope access "super" property. |
321 bool inner_uses_super_property() const { | 314 bool inner_uses_super_property() const { |
322 return inner_scope_uses_super_property_; | 315 return inner_scope_uses_super_property_; |
323 } | 316 } |
324 | 317 |
325 const Scope* NearestOuterEvalScope() const { | 318 const Scope* NearestOuterEvalScope() const { |
326 if (is_eval_scope()) return this; | 319 if (is_eval_scope()) return this; |
327 if (outer_scope() == nullptr) return nullptr; | 320 if (outer_scope() == nullptr) return nullptr; |
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574 | 567 |
575 // Scope-specific information computed during parsing. | 568 // Scope-specific information computed during parsing. |
576 // | 569 // |
577 // This scope is inside a 'with' of some outer scope. | 570 // This scope is inside a 'with' of some outer scope. |
578 bool scope_inside_with_; | 571 bool scope_inside_with_; |
579 // This scope contains a 'with' statement. | 572 // This scope contains a 'with' statement. |
580 bool scope_contains_with_; | 573 bool scope_contains_with_; |
581 // This scope or a nested catch scope or with scope contain an 'eval' call. At | 574 // This scope or a nested catch scope or with scope contain an 'eval' call. At |
582 // the 'eval' call site this scope is the declaration scope. | 575 // the 'eval' call site this scope is the declaration scope. |
583 bool scope_calls_eval_; | 576 bool scope_calls_eval_; |
584 // This scope uses "arguments". | |
585 bool scope_uses_arguments_; | |
586 // This scope uses "super" property ('super.foo'). | 577 // This scope uses "super" property ('super.foo'). |
587 bool scope_uses_super_property_; | 578 bool scope_uses_super_property_; |
588 // This scope contains an "use asm" annotation. | 579 // This scope contains an "use asm" annotation. |
589 bool asm_module_; | 580 bool asm_module_; |
590 // This scope's outer context is an asm module. | 581 // This scope's outer context is an asm module. |
591 bool asm_function_; | 582 bool asm_function_; |
592 // The language mode of this scope. | 583 // The language mode of this scope. |
593 LanguageMode language_mode_; | 584 LanguageMode language_mode_; |
594 // Source positions. | 585 // Source positions. |
595 int start_position_; | 586 int start_position_; |
596 int end_position_; | 587 int end_position_; |
597 | 588 |
598 // Computed via PropagateScopeInfo. | 589 // Computed via PropagateScopeInfo. |
599 bool outer_scope_calls_sloppy_eval_; | 590 bool outer_scope_calls_sloppy_eval_; |
600 bool inner_scope_calls_eval_; | 591 bool inner_scope_calls_eval_; |
601 bool inner_scope_uses_arguments_; | |
602 bool inner_scope_uses_super_property_; | 592 bool inner_scope_uses_super_property_; |
603 bool force_eager_compilation_; | 593 bool force_eager_compilation_; |
604 bool force_context_allocation_; | 594 bool force_context_allocation_; |
605 | 595 |
606 // True if it doesn't need scope resolution (e.g., if the scope was | 596 // True if it doesn't need scope resolution (e.g., if the scope was |
607 // constructed based on a serialized scope info or a catch context). | 597 // constructed based on a serialized scope info or a catch context). |
608 bool already_resolved_; | 598 bool already_resolved_; |
609 | 599 |
610 // Computed as variables are declared. | 600 // Computed as variables are declared. |
611 int num_var_or_const_; | 601 int num_var_or_const_; |
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752 PendingCompilationErrorHandler pending_error_handler_; | 742 PendingCompilationErrorHandler pending_error_handler_; |
753 | 743 |
754 // For tracking which classes are declared consecutively. Needed for strong | 744 // For tracking which classes are declared consecutively. Needed for strong |
755 // mode. | 745 // mode. |
756 int class_declaration_group_start_; | 746 int class_declaration_group_start_; |
757 }; | 747 }; |
758 | 748 |
759 } } // namespace v8::internal | 749 } } // namespace v8::internal |
760 | 750 |
761 #endif // V8_SCOPES_H_ | 751 #endif // V8_SCOPES_H_ |
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