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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
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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834 #endif | 834 #endif |
835 | 835 |
836 // Check if key is a heap number. | 836 // Check if key is a heap number. |
837 __ bind(&index_not_smi); | 837 __ bind(&index_not_smi); |
838 __ CheckMap(index, scratch, Factory::heap_number_map(), &miss, true); | 838 __ CheckMap(index, scratch, Factory::heap_number_map(), &miss, true); |
839 | 839 |
840 // Push receiver and key on the stack (now that we know they are a | 840 // Push receiver and key on the stack (now that we know they are a |
841 // string and a number), and call runtime. | 841 // string and a number), and call runtime. |
842 __ bind(&slow_char_code); | 842 __ bind(&slow_char_code); |
843 __ EnterInternalFrame(); | 843 __ EnterInternalFrame(); |
844 ASSERT(object.code() > index.code()); | |
845 __ Push(object, index); | 844 __ Push(object, index); |
846 __ CallRuntime(Runtime::kStringCharCodeAt, 2); | 845 __ CallRuntime(Runtime::kStringCharCodeAt, 2); |
847 ASSERT(!code.is(r0)); | 846 ASSERT(!code.is(r0)); |
848 __ mov(code, r0); | 847 __ mov(code, r0); |
849 __ LeaveInternalFrame(); | 848 __ LeaveInternalFrame(); |
850 | 849 |
851 // Check if the runtime call returned NaN char code. If yes, return | 850 // Check if the runtime call returned NaN char code. If yes, return |
852 // undefined. Otherwise, we can continue. | 851 // undefined. Otherwise, we can continue. |
853 if (FLAG_debug_code) { | 852 if (FLAG_debug_code) { |
854 __ BranchOnSmi(code, &got_char_code); | 853 __ BranchOnSmi(code, &got_char_code); |
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1832 __ bind(&miss); | 1831 __ bind(&miss); |
1833 | 1832 |
1834 GenerateMiss(masm); | 1833 GenerateMiss(masm); |
1835 } | 1834 } |
1836 | 1835 |
1837 | 1836 |
1838 #undef __ | 1837 #undef __ |
1839 | 1838 |
1840 | 1839 |
1841 } } // namespace v8::internal | 1840 } } // namespace v8::internal |
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