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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 // 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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3800 DeleteArray(str); | 3800 DeleteArray(str); |
3801 return result; | 3801 return result; |
3802 } | 3802 } |
3803 | 3803 |
3804 | 3804 |
3805 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToFixed) { | 3805 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToFixed) { |
3806 NoHandleAllocation ha; | 3806 NoHandleAllocation ha; |
3807 ASSERT(args.length() == 2); | 3807 ASSERT(args.length() == 2); |
3808 | 3808 |
3809 CONVERT_DOUBLE_ARG_CHECKED(value, 0); | 3809 CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
3810 if (isnan(value)) { | |
3811 return *isolate->factory()->nan_symbol(); | |
3812 } | |
3813 if (isinf(value)) { | |
3814 if (value < 0) { | |
3815 return *isolate->factory()->minus_infinity_symbol(); | |
3816 } | |
3817 return *isolate->factory()->infinity_symbol(); | |
3818 } | |
3819 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); | 3810 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
3820 int f = FastD2IChecked(f_number); | 3811 int f = FastD2IChecked(f_number); |
3821 RUNTIME_ASSERT(f >= 0); | 3812 RUNTIME_ASSERT(f >= 0); |
3822 char* str = DoubleToFixedCString(value, f); | 3813 char* str = DoubleToFixedCString(value, f); |
3823 MaybeObject* res = | 3814 MaybeObject* res = |
3824 isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); | 3815 isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
3825 DeleteArray(str); | 3816 DeleteArray(str); |
3826 return res; | 3817 return res; |
3827 } | 3818 } |
3828 | 3819 |
3829 | 3820 |
3830 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToExponential) { | 3821 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToExponential) { |
3831 NoHandleAllocation ha; | 3822 NoHandleAllocation ha; |
3832 ASSERT(args.length() == 2); | 3823 ASSERT(args.length() == 2); |
3833 | 3824 |
3834 CONVERT_DOUBLE_ARG_CHECKED(value, 0); | 3825 CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
3835 if (isnan(value)) { | |
3836 return *isolate->factory()->nan_symbol(); | |
3837 } | |
3838 if (isinf(value)) { | |
3839 if (value < 0) { | |
3840 return *isolate->factory()->minus_infinity_symbol(); | |
3841 } | |
3842 return *isolate->factory()->infinity_symbol(); | |
3843 } | |
3844 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); | 3826 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
3845 int f = FastD2IChecked(f_number); | 3827 int f = FastD2IChecked(f_number); |
3846 RUNTIME_ASSERT(f >= -1 && f <= 20); | 3828 RUNTIME_ASSERT(f >= -1 && f <= 20); |
3847 char* str = DoubleToExponentialCString(value, f); | 3829 char* str = DoubleToExponentialCString(value, f); |
3848 MaybeObject* res = | 3830 MaybeObject* res = |
3849 isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); | 3831 isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
3850 DeleteArray(str); | 3832 DeleteArray(str); |
3851 return res; | 3833 return res; |
3852 } | 3834 } |
3853 | 3835 |
3854 | 3836 |
3855 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToPrecision) { | 3837 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToPrecision) { |
3856 NoHandleAllocation ha; | 3838 NoHandleAllocation ha; |
3857 ASSERT(args.length() == 2); | 3839 ASSERT(args.length() == 2); |
3858 | 3840 |
3859 CONVERT_DOUBLE_ARG_CHECKED(value, 0); | 3841 CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
3860 if (isnan(value)) { | |
3861 return *isolate->factory()->nan_symbol(); | |
3862 } | |
3863 if (isinf(value)) { | |
3864 if (value < 0) { | |
3865 return *isolate->factory()->minus_infinity_symbol(); | |
3866 } | |
3867 return *isolate->factory()->infinity_symbol(); | |
3868 } | |
3869 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); | 3842 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
3870 int f = FastD2IChecked(f_number); | 3843 int f = FastD2IChecked(f_number); |
3871 RUNTIME_ASSERT(f >= 1 && f <= 21); | 3844 RUNTIME_ASSERT(f >= 1 && f <= 21); |
3872 char* str = DoubleToPrecisionCString(value, f); | 3845 char* str = DoubleToPrecisionCString(value, f); |
3873 MaybeObject* res = | 3846 MaybeObject* res = |
3874 isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); | 3847 isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
3875 DeleteArray(str); | 3848 DeleteArray(str); |
3876 return res; | 3849 return res; |
3877 } | 3850 } |
3878 | 3851 |
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13551 // Handle last resort GC and make sure to allow future allocations | 13524 // Handle last resort GC and make sure to allow future allocations |
13552 // to grow the heap without causing GCs (if possible). | 13525 // to grow the heap without causing GCs (if possible). |
13553 isolate->counters()->gc_last_resort_from_js()->Increment(); | 13526 isolate->counters()->gc_last_resort_from_js()->Increment(); |
13554 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 13527 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
13555 "Runtime::PerformGC"); | 13528 "Runtime::PerformGC"); |
13556 } | 13529 } |
13557 } | 13530 } |
13558 | 13531 |
13559 | 13532 |
13560 } } // namespace v8::internal | 13533 } } // namespace v8::internal |
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