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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 <stdarg.h> | 5 #include <stdarg.h> |
| 6 #include <sys/stat.h> | 6 #include <sys/stat.h> |
| 7 | 7 |
| 8 #include "src/v8.h" | 8 #include "src/v8.h" |
| 9 | 9 |
| 10 #include "src/base/logging.h" | 10 #include "src/base/logging.h" |
| 11 #include "src/base/platform/platform.h" | 11 #include "src/base/platform/platform.h" |
| 12 #include "src/utils.h" | 12 #include "src/utils.h" |
| 13 | 13 |
| 14 namespace v8 { | 14 namespace v8 { |
| 15 namespace internal { | 15 namespace internal { |
| 16 | 16 |
| 17 | 17 |
| 18 SimpleStringBuilder::SimpleStringBuilder(int size) { | 18 SimpleStringBuilder::SimpleStringBuilder(int size) { |
| 19 buffer_ = Vector<char>::New(size); | 19 buffer_ = Vector<char>::New(size); |
| 20 position_ = 0; | 20 position_ = 0; |
| 21 } | 21 } |
| 22 | 22 |
| 23 | 23 |
| 24 void SimpleStringBuilder::AddString(const char* s) { | 24 void SimpleStringBuilder::AddString(const char* s) { |
| 25 AddSubstring(s, StrLength(s)); | 25 AddSubstring(s, StrLength(s)); |
| 26 } | 26 } |
| 27 | 27 |
| 28 | 28 |
| 29 void SimpleStringBuilder::AddSubstring(const char* s, int n) { | 29 void SimpleStringBuilder::AddSubstring(const char* s, int n) { |
| 30 ASSERT(!is_finalized() && position_ + n <= buffer_.length()); | 30 DCHECK(!is_finalized() && position_ + n <= buffer_.length()); |
| 31 ASSERT(static_cast<size_t>(n) <= strlen(s)); | 31 DCHECK(static_cast<size_t>(n) <= strlen(s)); |
| 32 MemCopy(&buffer_[position_], s, n * kCharSize); | 32 MemCopy(&buffer_[position_], s, n * kCharSize); |
| 33 position_ += n; | 33 position_ += n; |
| 34 } | 34 } |
| 35 | 35 |
| 36 | 36 |
| 37 void SimpleStringBuilder::AddPadding(char c, int count) { | 37 void SimpleStringBuilder::AddPadding(char c, int count) { |
| 38 for (int i = 0; i < count; i++) { | 38 for (int i = 0; i < count; i++) { |
| 39 AddCharacter(c); | 39 AddCharacter(c); |
| 40 } | 40 } |
| 41 } | 41 } |
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| 53 } | 53 } |
| 54 position_ += digits; | 54 position_ += digits; |
| 55 for (int i = 1; i <= digits; i++) { | 55 for (int i = 1; i <= digits; i++) { |
| 56 buffer_[position_ - i] = '0' + static_cast<char>(number % 10); | 56 buffer_[position_ - i] = '0' + static_cast<char>(number % 10); |
| 57 number /= 10; | 57 number /= 10; |
| 58 } | 58 } |
| 59 } | 59 } |
| 60 | 60 |
| 61 | 61 |
| 62 char* SimpleStringBuilder::Finalize() { | 62 char* SimpleStringBuilder::Finalize() { |
| 63 ASSERT(!is_finalized() && position_ <= buffer_.length()); | 63 DCHECK(!is_finalized() && position_ <= buffer_.length()); |
| 64 // If there is no space for null termination, overwrite last character. | 64 // If there is no space for null termination, overwrite last character. |
| 65 if (position_ == buffer_.length()) { | 65 if (position_ == buffer_.length()) { |
| 66 position_--; | 66 position_--; |
| 67 // Print ellipsis. | 67 // Print ellipsis. |
| 68 for (int i = 3; i > 0 && position_ > i; --i) buffer_[position_ - i] = '.'; | 68 for (int i = 3; i > 0 && position_ > i; --i) buffer_[position_ - i] = '.'; |
| 69 } | 69 } |
| 70 buffer_[position_] = '\0'; | 70 buffer_[position_] = '\0'; |
| 71 // Make sure nobody managed to add a 0-character to the | 71 // Make sure nobody managed to add a 0-character to the |
| 72 // buffer while building the string. | 72 // buffer while building the string. |
| 73 ASSERT(strlen(buffer_.start()) == static_cast<size_t>(position_)); | 73 DCHECK(strlen(buffer_.start()) == static_cast<size_t>(position_)); |
| 74 position_ = -1; | 74 position_ = -1; |
| 75 ASSERT(is_finalized()); | 75 DCHECK(is_finalized()); |
| 76 return buffer_.start(); | 76 return buffer_.start(); |
| 77 } | 77 } |
| 78 | 78 |
| 79 | 79 |
| 80 void PrintF(const char* format, ...) { | 80 void PrintF(const char* format, ...) { |
| 81 va_list arguments; | 81 va_list arguments; |
| 82 va_start(arguments, format); | 82 va_start(arguments, format); |
| 83 base::OS::VPrint(format, arguments); | 83 base::OS::VPrint(format, arguments); |
| 84 va_end(arguments); | 84 va_end(arguments); |
| 85 } | 85 } |
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| 165 // Copy the existing input into the new array and set the new | 165 // Copy the existing input into the new array and set the new |
| 166 // array as the result. | 166 // array as the result. |
| 167 MemCopy(new_result, result, offset * kCharSize); | 167 MemCopy(new_result, result, offset * kCharSize); |
| 168 DeleteArray(result); | 168 DeleteArray(result); |
| 169 result = new_result; | 169 result = new_result; |
| 170 } | 170 } |
| 171 // Copy the newly read line into the result. | 171 // Copy the newly read line into the result. |
| 172 MemCopy(result + offset, line_buf, len * kCharSize); | 172 MemCopy(result + offset, line_buf, len * kCharSize); |
| 173 offset += len; | 173 offset += len; |
| 174 } | 174 } |
| 175 ASSERT(result != NULL); | 175 DCHECK(result != NULL); |
| 176 result[offset] = '\0'; | 176 result[offset] = '\0'; |
| 177 return result; | 177 return result; |
| 178 } | 178 } |
| 179 | 179 |
| 180 | 180 |
| 181 char* ReadCharsFromFile(FILE* file, | 181 char* ReadCharsFromFile(FILE* file, |
| 182 int* size, | 182 int* size, |
| 183 int extra_space, | 183 int extra_space, |
| 184 bool verbose, | 184 bool verbose, |
| 185 const char* filename) { | 185 const char* filename) { |
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| 316 | 316 |
| 317 void StringBuilder::AddFormatted(const char* format, ...) { | 317 void StringBuilder::AddFormatted(const char* format, ...) { |
| 318 va_list arguments; | 318 va_list arguments; |
| 319 va_start(arguments, format); | 319 va_start(arguments, format); |
| 320 AddFormattedList(format, arguments); | 320 AddFormattedList(format, arguments); |
| 321 va_end(arguments); | 321 va_end(arguments); |
| 322 } | 322 } |
| 323 | 323 |
| 324 | 324 |
| 325 void StringBuilder::AddFormattedList(const char* format, va_list list) { | 325 void StringBuilder::AddFormattedList(const char* format, va_list list) { |
| 326 ASSERT(!is_finalized() && position_ <= buffer_.length()); | 326 DCHECK(!is_finalized() && position_ <= buffer_.length()); |
| 327 int n = VSNPrintF(buffer_ + position_, format, list); | 327 int n = VSNPrintF(buffer_ + position_, format, list); |
| 328 if (n < 0 || n >= (buffer_.length() - position_)) { | 328 if (n < 0 || n >= (buffer_.length() - position_)) { |
| 329 position_ = buffer_.length(); | 329 position_ = buffer_.length(); |
| 330 } else { | 330 } else { |
| 331 position_ += n; | 331 position_ += n; |
| 332 } | 332 } |
| 333 } | 333 } |
| 334 | 334 |
| 335 | 335 |
| 336 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87 | 336 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87 |
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| 408 } | 408 } |
| 409 if (u.bits.exp == 0) { | 409 if (u.bits.exp == 0) { |
| 410 // Detect +0, and -0 for IEEE double precision floating point. | 410 // Detect +0, and -0 for IEEE double precision floating point. |
| 411 if ((u.bits.man_low | u.bits.man_high) == 0) return false; | 411 if ((u.bits.man_low | u.bits.man_high) == 0) return false; |
| 412 } | 412 } |
| 413 return true; | 413 return true; |
| 414 } | 414 } |
| 415 | 415 |
| 416 | 416 |
| 417 } } // namespace v8::internal | 417 } } // namespace v8::internal |
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