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Issue 2281073002: Create ScopeInfos while analyzing the Scope chain (Closed)
Patch Set: updates Created 4 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved.7 1 // Copyright 2012 the V8 project authors. All rights reserved.7
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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172 172
173 // Possibly allocate a local context. 173 // Possibly allocate a local context.
174 if (info()->scope()->NeedsContext()) { 174 if (info()->scope()->NeedsContext()) {
175 Comment(";;; Allocate local context"); 175 Comment(";;; Allocate local context");
176 bool need_write_barrier = true; 176 bool need_write_barrier = true;
177 // Argument to NewContext is the function, which is in a1. 177 // Argument to NewContext is the function, which is in a1.
178 int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 178 int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
179 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; 179 Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt;
180 if (info()->scope()->is_script_scope()) { 180 if (info()->scope()->is_script_scope()) {
181 __ push(a1); 181 __ push(a1);
182 __ Push(info()->scope()->GetScopeInfo(info()->isolate())); 182 __ Push(info()->scope()->scope_info());
183 __ CallRuntime(Runtime::kNewScriptContext); 183 __ CallRuntime(Runtime::kNewScriptContext);
184 deopt_mode = Safepoint::kLazyDeopt; 184 deopt_mode = Safepoint::kLazyDeopt;
185 } else { 185 } else {
186 FastNewFunctionContextStub stub(isolate()); 186 FastNewFunctionContextStub stub(isolate());
187 __ li(FastNewFunctionContextDescriptor::SlotsRegister(), Operand(slots)); 187 __ li(FastNewFunctionContextDescriptor::SlotsRegister(), Operand(slots));
188 __ CallStub(&stub); 188 __ CallStub(&stub);
189 // Result of FastNewFunctionContextStub is always in new space. 189 // Result of FastNewFunctionContextStub is always in new space.
190 need_write_barrier = false; 190 need_write_barrier = false;
191 } 191 }
192 RecordSafepoint(deopt_mode); 192 RecordSafepoint(deopt_mode);
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5536 __ lw(result, FieldMemOperand(scratch, 5536 __ lw(result, FieldMemOperand(scratch,
5537 FixedArray::kHeaderSize - kPointerSize)); 5537 FixedArray::kHeaderSize - kPointerSize));
5538 __ bind(deferred->exit()); 5538 __ bind(deferred->exit());
5539 __ bind(&done); 5539 __ bind(&done);
5540 } 5540 }
5541 5541
5542 #undef __ 5542 #undef __
5543 5543
5544 } // namespace internal 5544 } // namespace internal
5545 } // namespace v8 5545 } // namespace v8
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