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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 #if V8_TARGET_ARCH_ARM | 7 #if V8_TARGET_ARCH_ARM |
8 | 8 |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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1269 } | 1269 } |
1270 | 1270 |
1271 | 1271 |
1272 void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) { | 1272 void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) { |
1273 Comment cmnt(masm_, "[ ForOfStatement"); | 1273 Comment cmnt(masm_, "[ ForOfStatement"); |
1274 SetStatementPosition(stmt); | 1274 SetStatementPosition(stmt); |
1275 | 1275 |
1276 Iteration loop_statement(this, stmt); | 1276 Iteration loop_statement(this, stmt); |
1277 increment_loop_depth(); | 1277 increment_loop_depth(); |
1278 | 1278 |
1279 // var iterable = subject | |
1280 VisitForAccumulatorValue(stmt->assign_iterable()); | |
1281 | |
1282 // As with for-in, skip the loop if the iterator is null or undefined. | |
1283 __ CompareRoot(r0, Heap::kUndefinedValueRootIndex); | |
1284 __ b(eq, loop_statement.break_label()); | |
1285 __ CompareRoot(r0, Heap::kNullValueRootIndex); | |
1286 __ b(eq, loop_statement.break_label()); | |
1287 | |
1288 // var iterator = iterable[Symbol.iterator](); | 1279 // var iterator = iterable[Symbol.iterator](); |
1289 VisitForEffect(stmt->assign_iterator()); | 1280 VisitForEffect(stmt->assign_iterator()); |
1290 | 1281 |
1291 // Loop entry. | 1282 // Loop entry. |
1292 __ bind(loop_statement.continue_label()); | 1283 __ bind(loop_statement.continue_label()); |
1293 | 1284 |
1294 // result = iterator.next() | 1285 // result = iterator.next() |
1295 VisitForEffect(stmt->next_result()); | 1286 VisitForEffect(stmt->next_result()); |
1296 | 1287 |
1297 // if (result.done) break; | 1288 // if (result.done) break; |
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4890 | 4881 |
4891 ASSERT(interrupt_address == | 4882 ASSERT(interrupt_address == |
4892 isolate->builtins()->OsrAfterStackCheck()->entry()); | 4883 isolate->builtins()->OsrAfterStackCheck()->entry()); |
4893 return OSR_AFTER_STACK_CHECK; | 4884 return OSR_AFTER_STACK_CHECK; |
4894 } | 4885 } |
4895 | 4886 |
4896 | 4887 |
4897 } } // namespace v8::internal | 4888 } } // namespace v8::internal |
4898 | 4889 |
4899 #endif // V8_TARGET_ARCH_ARM | 4890 #endif // V8_TARGET_ARCH_ARM |
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