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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/double_conversion.h" | 5 #include "vm/double_conversion.h" |
| 6 | 6 |
| 7 #include "third_party/double-conversion/src/double-conversion.h" | 7 #include "third_party/double-conversion/src/double-conversion.h" |
| 8 | 8 |
| 9 #include "vm/exceptions.h" | 9 #include "vm/exceptions.h" |
| 10 #include "vm/globals.h" | 10 #include "vm/globals.h" |
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| 79 ASSERT(kMinFractionDigits <= fraction_digits && | 79 ASSERT(kMinFractionDigits <= fraction_digits && |
| 80 fraction_digits <= kMaxFractionDigits); | 80 fraction_digits <= kMaxFractionDigits); |
| 81 | 81 |
| 82 const double_conversion::DoubleToStringConverter converter( | 82 const double_conversion::DoubleToStringConverter converter( |
| 83 kConversionFlags, | 83 kConversionFlags, |
| 84 kDoubleToStringCommonInfinitySymbol, | 84 kDoubleToStringCommonInfinitySymbol, |
| 85 kDoubleToStringCommonNaNSymbol, | 85 kDoubleToStringCommonNaNSymbol, |
| 86 kDoubleToStringCommonExponentChar, | 86 kDoubleToStringCommonExponentChar, |
| 87 0, 0, 0, 0); // Last four values are ignored in fixed mode. | 87 0, 0, 0, 0); // Last four values are ignored in fixed mode. |
| 88 | 88 |
| 89 char* buffer = reinterpret_cast<char*>( | 89 char* buffer = Isolate::Current()->current_zone()->Alloc<char>(kBufferSize); |
| 90 Isolate::Current()->current_zone()->Allocate(kBufferSize)); | |
| 91 buffer[kBufferSize - 1] = '\0'; | 90 buffer[kBufferSize - 1] = '\0'; |
| 92 double_conversion::StringBuilder builder(buffer, kBufferSize); | 91 double_conversion::StringBuilder builder(buffer, kBufferSize); |
| 93 bool status = converter.ToFixed(d, fraction_digits, &builder); | 92 bool status = converter.ToFixed(d, fraction_digits, &builder); |
| 94 ASSERT(status); | 93 ASSERT(status); |
| 95 int length = builder.position(); | 94 int length = builder.position(); |
| 96 return String::New(reinterpret_cast<uint8_t*>(builder.Finalize()), length); | 95 return String::New(reinterpret_cast<uint8_t*>(builder.Finalize()), length); |
| 97 } | 96 } |
| 98 | 97 |
| 99 | 98 |
| 100 RawString* DoubleToStringAsExponential(double d, int fraction_digits) { | 99 RawString* DoubleToStringAsExponential(double d, int fraction_digits) { |
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| 114 ASSERT(kMinFractionDigits <= fraction_digits && | 113 ASSERT(kMinFractionDigits <= fraction_digits && |
| 115 fraction_digits <= kMaxFractionDigits); | 114 fraction_digits <= kMaxFractionDigits); |
| 116 | 115 |
| 117 const double_conversion::DoubleToStringConverter converter( | 116 const double_conversion::DoubleToStringConverter converter( |
| 118 kConversionFlags, | 117 kConversionFlags, |
| 119 kDoubleToStringCommonInfinitySymbol, | 118 kDoubleToStringCommonInfinitySymbol, |
| 120 kDoubleToStringCommonNaNSymbol, | 119 kDoubleToStringCommonNaNSymbol, |
| 121 kDoubleToStringCommonExponentChar, | 120 kDoubleToStringCommonExponentChar, |
| 122 0, 0, 0, 0); // Last four values are ignored in exponential mode. | 121 0, 0, 0, 0); // Last four values are ignored in exponential mode. |
| 123 | 122 |
| 124 char* buffer = reinterpret_cast<char*>( | 123 char* buffer = Isolate::Current()->current_zone()->Alloc<char>(kBufferSize); |
| 125 Isolate::Current()->current_zone()->Allocate(kBufferSize)); | |
| 126 buffer[kBufferSize - 1] = '\0'; | 124 buffer[kBufferSize - 1] = '\0'; |
| 127 double_conversion::StringBuilder builder(buffer, kBufferSize); | 125 double_conversion::StringBuilder builder(buffer, kBufferSize); |
| 128 bool status = converter.ToExponential(d, fraction_digits, &builder); | 126 bool status = converter.ToExponential(d, fraction_digits, &builder); |
| 129 ASSERT(status); | 127 ASSERT(status); |
| 130 int length = builder.position(); | 128 int length = builder.position(); |
| 131 return String::New(reinterpret_cast<uint8_t*>(builder.Finalize()), length); | 129 return String::New(reinterpret_cast<uint8_t*>(builder.Finalize()), length); |
| 132 } | 130 } |
| 133 | 131 |
| 134 | 132 |
| 135 RawString* DoubleToStringAsPrecision(double d, int precision) { | 133 RawString* DoubleToStringAsPrecision(double d, int precision) { |
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| 155 | 153 |
| 156 const double_conversion::DoubleToStringConverter converter( | 154 const double_conversion::DoubleToStringConverter converter( |
| 157 kConversionFlags, | 155 kConversionFlags, |
| 158 kDoubleToStringCommonInfinitySymbol, | 156 kDoubleToStringCommonInfinitySymbol, |
| 159 kDoubleToStringCommonNaNSymbol, | 157 kDoubleToStringCommonNaNSymbol, |
| 160 kDoubleToStringCommonExponentChar, | 158 kDoubleToStringCommonExponentChar, |
| 161 0, 0, // Ignored in precision mode. | 159 0, 0, // Ignored in precision mode. |
| 162 kMaxLeadingPaddingZeroes, | 160 kMaxLeadingPaddingZeroes, |
| 163 kMaxTrailingPaddingZeroes); | 161 kMaxTrailingPaddingZeroes); |
| 164 | 162 |
| 165 char* buffer = reinterpret_cast<char*>( | 163 char* buffer = Isolate::Current()->current_zone()->Alloc<char>(kBufferSize); |
| 166 Isolate::Current()->current_zone()->Allocate(kBufferSize)); | |
| 167 buffer[kBufferSize - 1] = '\0'; | 164 buffer[kBufferSize - 1] = '\0'; |
| 168 double_conversion::StringBuilder builder(buffer, kBufferSize); | 165 double_conversion::StringBuilder builder(buffer, kBufferSize); |
| 169 bool status = converter.ToPrecision(d, precision, &builder); | 166 bool status = converter.ToPrecision(d, precision, &builder); |
| 170 ASSERT(status); | 167 ASSERT(status); |
| 171 int length = builder.position(); | 168 int length = builder.position(); |
| 172 return String::New(reinterpret_cast<uint8_t*>(builder.Finalize()), length); | 169 return String::New(reinterpret_cast<uint8_t*>(builder.Finalize()), length); |
| 173 } | 170 } |
| 174 | 171 |
| 175 } // namespace dart | 172 } // namespace dart |
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