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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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/runtime/runtime-utils.h" | 5 #include "src/runtime/runtime-utils.h" |
| 6 | 6 |
| 7 #include "src/arguments.h" | 7 #include "src/arguments.h" |
| 8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
| 9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
| 10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
| 11 #include "src/isolate-inl.h" | 11 #include "src/isolate-inl.h" |
| 12 | 12 |
| 13 namespace v8 { | 13 namespace v8 { |
| 14 namespace internal { | 14 namespace internal { |
| 15 | 15 |
| 16 RUNTIME_FUNCTION(Runtime_NumberToRadixString) { | 16 RUNTIME_FUNCTION(Runtime_NumberToRadixString) { |
| 17 HandleScope scope(isolate); | 17 HandleScope scope(isolate); |
| 18 DCHECK(args.length() == 2); | 18 DCHECK(args.length() == 2); |
| 19 CONVERT_SMI_ARG_CHECKED(radix, 1); | 19 CONVERT_SMI_ARG_CHECKED(radix, 1); |
| 20 RUNTIME_ASSERT(2 <= radix && radix <= 36); | 20 CHECK(2 <= radix && radix <= 36); |
| 21 | 21 |
| 22 // Fast case where the result is a one character string. | 22 // Fast case where the result is a one character string. |
| 23 if (args[0]->IsSmi()) { | 23 if (args[0]->IsSmi()) { |
| 24 int value = args.smi_at(0); | 24 int value = args.smi_at(0); |
| 25 if (value >= 0 && value < radix) { | 25 if (value >= 0 && value < radix) { |
| 26 // Character array used for conversion. | 26 // Character array used for conversion. |
| 27 static const char kCharTable[] = "0123456789abcdefghijklmnopqrstuvwxyz"; | 27 static const char kCharTable[] = "0123456789abcdefghijklmnopqrstuvwxyz"; |
| 28 return *isolate->factory()->LookupSingleCharacterStringFromCode( | 28 return *isolate->factory()->LookupSingleCharacterStringFromCode( |
| 29 kCharTable[value]); | 29 kCharTable[value]); |
| 30 } | 30 } |
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| 49 | 49 |
| 50 | 50 |
| 51 RUNTIME_FUNCTION(Runtime_NumberToFixed) { | 51 RUNTIME_FUNCTION(Runtime_NumberToFixed) { |
| 52 HandleScope scope(isolate); | 52 HandleScope scope(isolate); |
| 53 DCHECK(args.length() == 2); | 53 DCHECK(args.length() == 2); |
| 54 | 54 |
| 55 CONVERT_DOUBLE_ARG_CHECKED(value, 0); | 55 CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
| 56 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); | 56 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
| 57 int f = FastD2IChecked(f_number); | 57 int f = FastD2IChecked(f_number); |
| 58 // See DoubleToFixedCString for these constants: | 58 // See DoubleToFixedCString for these constants: |
| 59 RUNTIME_ASSERT(f >= 0 && f <= 20); | 59 CHECK(f >= 0 && f <= 20); |
| 60 RUNTIME_ASSERT(!Double(value).IsSpecial()); | 60 CHECK(!Double(value).IsSpecial()); |
| 61 char* str = DoubleToFixedCString(value, f); | 61 char* str = DoubleToFixedCString(value, f); |
| 62 Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str); | 62 Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str); |
| 63 DeleteArray(str); | 63 DeleteArray(str); |
| 64 return *result; | 64 return *result; |
| 65 } | 65 } |
| 66 | 66 |
| 67 | 67 |
| 68 RUNTIME_FUNCTION(Runtime_NumberToExponential) { | 68 RUNTIME_FUNCTION(Runtime_NumberToExponential) { |
| 69 HandleScope scope(isolate); | 69 HandleScope scope(isolate); |
| 70 DCHECK(args.length() == 2); | 70 DCHECK(args.length() == 2); |
| 71 | 71 |
| 72 CONVERT_DOUBLE_ARG_CHECKED(value, 0); | 72 CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
| 73 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); | 73 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
| 74 int f = FastD2IChecked(f_number); | 74 int f = FastD2IChecked(f_number); |
| 75 RUNTIME_ASSERT(f >= -1 && f <= 20); | 75 CHECK(f >= -1 && f <= 20); |
| 76 RUNTIME_ASSERT(!Double(value).IsSpecial()); | 76 CHECK(!Double(value).IsSpecial()); |
| 77 char* str = DoubleToExponentialCString(value, f); | 77 char* str = DoubleToExponentialCString(value, f); |
| 78 Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str); | 78 Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str); |
| 79 DeleteArray(str); | 79 DeleteArray(str); |
| 80 return *result; | 80 return *result; |
| 81 } | 81 } |
| 82 | 82 |
| 83 | 83 |
| 84 RUNTIME_FUNCTION(Runtime_NumberToPrecision) { | 84 RUNTIME_FUNCTION(Runtime_NumberToPrecision) { |
| 85 HandleScope scope(isolate); | 85 HandleScope scope(isolate); |
| 86 DCHECK(args.length() == 2); | 86 DCHECK(args.length() == 2); |
| 87 | 87 |
| 88 CONVERT_DOUBLE_ARG_CHECKED(value, 0); | 88 CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
| 89 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); | 89 CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
| 90 int f = FastD2IChecked(f_number); | 90 int f = FastD2IChecked(f_number); |
| 91 RUNTIME_ASSERT(f >= 1 && f <= 21); | 91 CHECK(f >= 1 && f <= 21); |
| 92 RUNTIME_ASSERT(!Double(value).IsSpecial()); | 92 CHECK(!Double(value).IsSpecial()); |
| 93 char* str = DoubleToPrecisionCString(value, f); | 93 char* str = DoubleToPrecisionCString(value, f); |
| 94 Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str); | 94 Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str); |
| 95 DeleteArray(str); | 95 DeleteArray(str); |
| 96 return *result; | 96 return *result; |
| 97 } | 97 } |
| 98 | 98 |
| 99 | 99 |
| 100 RUNTIME_FUNCTION(Runtime_IsValidSmi) { | 100 RUNTIME_FUNCTION(Runtime_IsValidSmi) { |
| 101 SealHandleScope shs(isolate); | 101 SealHandleScope shs(isolate); |
| 102 DCHECK(args.length() == 1); | 102 DCHECK(args.length() == 1); |
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| 114 } | 114 } |
| 115 | 115 |
| 116 | 116 |
| 117 // ES6 18.2.5 parseInt(string, radix) slow path | 117 // ES6 18.2.5 parseInt(string, radix) slow path |
| 118 RUNTIME_FUNCTION(Runtime_StringParseInt) { | 118 RUNTIME_FUNCTION(Runtime_StringParseInt) { |
| 119 HandleScope handle_scope(isolate); | 119 HandleScope handle_scope(isolate); |
| 120 DCHECK(args.length() == 2); | 120 DCHECK(args.length() == 2); |
| 121 CONVERT_ARG_HANDLE_CHECKED(String, subject, 0); | 121 CONVERT_ARG_HANDLE_CHECKED(String, subject, 0); |
| 122 CONVERT_NUMBER_CHECKED(int, radix, Int32, args[1]); | 122 CONVERT_NUMBER_CHECKED(int, radix, Int32, args[1]); |
| 123 // Step 8.a. is already handled in the JS function. | 123 // Step 8.a. is already handled in the JS function. |
| 124 RUNTIME_ASSERT(radix == 0 || (2 <= radix && radix <= 36)); | 124 CHECK(radix == 0 || (2 <= radix && radix <= 36)); |
| 125 | 125 |
| 126 subject = String::Flatten(subject); | 126 subject = String::Flatten(subject); |
| 127 double value; | 127 double value; |
| 128 | 128 |
| 129 { | 129 { |
| 130 DisallowHeapAllocation no_gc; | 130 DisallowHeapAllocation no_gc; |
| 131 String::FlatContent flat = subject->GetFlatContent(); | 131 String::FlatContent flat = subject->GetFlatContent(); |
| 132 | 132 |
| 133 if (flat.IsOneByte()) { | 133 if (flat.IsOneByte()) { |
| 134 value = | 134 value = |
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| 301 | 301 |
| 302 RUNTIME_FUNCTION(Runtime_GetHoleNaNLower) { | 302 RUNTIME_FUNCTION(Runtime_GetHoleNaNLower) { |
| 303 HandleScope scope(isolate); | 303 HandleScope scope(isolate); |
| 304 DCHECK(args.length() == 0); | 304 DCHECK(args.length() == 0); |
| 305 return *isolate->factory()->NewNumberFromUint(kHoleNanLower32); | 305 return *isolate->factory()->NewNumberFromUint(kHoleNanLower32); |
| 306 } | 306 } |
| 307 | 307 |
| 308 | 308 |
| 309 } // namespace internal | 309 } // namespace internal |
| 310 } // namespace v8 | 310 } // namespace v8 |
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