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Issue 250823003: Revert 20968 - "Merge v8utils.* and utils.*" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 months ago
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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 // 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
11 // with the distribution. 11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its 12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived 13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission. 14 // from this software without specific prior written permission.
15 // 15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #include <stdarg.h> 28 #include <stdarg.h>
29 #include <sys/stat.h> 29 #include "../include/v8stdint.h"
30
31 #include "v8.h"
32
33 #include "checks.h" 30 #include "checks.h"
34 #include "platform.h" 31 #include "platform.h"
35 #include "utils.h" 32 #include "utils.h"
36 33
37 namespace v8 { 34 namespace v8 {
38 namespace internal { 35 namespace internal {
39 36
40 37
41 SimpleStringBuilder::SimpleStringBuilder(int size) { 38 SimpleStringBuilder::SimpleStringBuilder(int size) {
42 buffer_ = Vector<char>::New(size); 39 buffer_ = Vector<char>::New(size);
(...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after
93 buffer_[position_] = '\0'; 90 buffer_[position_] = '\0';
94 // Make sure nobody managed to add a 0-character to the 91 // Make sure nobody managed to add a 0-character to the
95 // buffer while building the string. 92 // buffer while building the string.
96 ASSERT(strlen(buffer_.start()) == static_cast<size_t>(position_)); 93 ASSERT(strlen(buffer_.start()) == static_cast<size_t>(position_));
97 position_ = -1; 94 position_ = -1;
98 ASSERT(is_finalized()); 95 ASSERT(is_finalized());
99 return buffer_.start(); 96 return buffer_.start();
100 } 97 }
101 98
102 99
103 void PrintF(const char* format, ...) {
104 va_list arguments;
105 va_start(arguments, format);
106 OS::VPrint(format, arguments);
107 va_end(arguments);
108 }
109
110
111 void PrintF(FILE* out, const char* format, ...) {
112 va_list arguments;
113 va_start(arguments, format);
114 OS::VFPrint(out, format, arguments);
115 va_end(arguments);
116 }
117
118
119 void PrintPID(const char* format, ...) {
120 OS::Print("[%d] ", OS::GetCurrentProcessId());
121 va_list arguments;
122 va_start(arguments, format);
123 OS::VPrint(format, arguments);
124 va_end(arguments);
125 }
126
127
128 void Flush(FILE* out) {
129 fflush(out);
130 }
131
132
133 char* ReadLine(const char* prompt) {
134 char* result = NULL;
135 char line_buf[256];
136 int offset = 0;
137 bool keep_going = true;
138 fprintf(stdout, "%s", prompt);
139 fflush(stdout);
140 while (keep_going) {
141 if (fgets(line_buf, sizeof(line_buf), stdin) == NULL) {
142 // fgets got an error. Just give up.
143 if (result != NULL) {
144 DeleteArray(result);
145 }
146 return NULL;
147 }
148 int len = StrLength(line_buf);
149 if (len > 1 &&
150 line_buf[len - 2] == '\\' &&
151 line_buf[len - 1] == '\n') {
152 // When we read a line that ends with a "\" we remove the escape and
153 // append the remainder.
154 line_buf[len - 2] = '\n';
155 line_buf[len - 1] = 0;
156 len -= 1;
157 } else if ((len > 0) && (line_buf[len - 1] == '\n')) {
158 // Since we read a new line we are done reading the line. This
159 // will exit the loop after copying this buffer into the result.
160 keep_going = false;
161 }
162 if (result == NULL) {
163 // Allocate the initial result and make room for the terminating '\0'
164 result = NewArray<char>(len + 1);
165 } else {
166 // Allocate a new result with enough room for the new addition.
167 int new_len = offset + len + 1;
168 char* new_result = NewArray<char>(new_len);
169 // Copy the existing input into the new array and set the new
170 // array as the result.
171 OS::MemCopy(new_result, result, offset * kCharSize);
172 DeleteArray(result);
173 result = new_result;
174 }
175 // Copy the newly read line into the result.
176 OS::MemCopy(result + offset, line_buf, len * kCharSize);
177 offset += len;
178 }
179 ASSERT(result != NULL);
180 result[offset] = '\0';
181 return result;
182 }
183
184
185 char* ReadCharsFromFile(FILE* file,
186 int* size,
187 int extra_space,
188 bool verbose,
189 const char* filename) {
190 if (file == NULL || fseek(file, 0, SEEK_END) != 0) {
191 if (verbose) {
192 OS::PrintError("Cannot read from file %s.\n", filename);
193 }
194 return NULL;
195 }
196
197 // Get the size of the file and rewind it.
198 *size = ftell(file);
199 rewind(file);
200
201 char* result = NewArray<char>(*size + extra_space);
202 for (int i = 0; i < *size && feof(file) == 0;) {
203 int read = static_cast<int>(fread(&result[i], 1, *size - i, file));
204 if (read != (*size - i) && ferror(file) != 0) {
205 fclose(file);
206 DeleteArray(result);
207 return NULL;
208 }
209 i += read;
210 }
211 return result;
212 }
213
214
215 char* ReadCharsFromFile(const char* filename,
216 int* size,
217 int extra_space,
218 bool verbose) {
219 FILE* file = OS::FOpen(filename, "rb");
220 char* result = ReadCharsFromFile(file, size, extra_space, verbose, filename);
221 if (file != NULL) fclose(file);
222 return result;
223 }
224
225
226 byte* ReadBytes(const char* filename, int* size, bool verbose) {
227 char* chars = ReadCharsFromFile(filename, size, 0, verbose);
228 return reinterpret_cast<byte*>(chars);
229 }
230
231
232 static Vector<const char> SetVectorContents(char* chars,
233 int size,
234 bool* exists) {
235 if (!chars) {
236 *exists = false;
237 return Vector<const char>::empty();
238 }
239 chars[size] = '\0';
240 *exists = true;
241 return Vector<const char>(chars, size);
242 }
243
244
245 Vector<const char> ReadFile(const char* filename,
246 bool* exists,
247 bool verbose) {
248 int size;
249 char* result = ReadCharsFromFile(filename, &size, 1, verbose);
250 return SetVectorContents(result, size, exists);
251 }
252
253
254 Vector<const char> ReadFile(FILE* file,
255 bool* exists,
256 bool verbose) {
257 int size;
258 char* result = ReadCharsFromFile(file, &size, 1, verbose, "");
259 return SetVectorContents(result, size, exists);
260 }
261
262
263 int WriteCharsToFile(const char* str, int size, FILE* f) {
264 int total = 0;
265 while (total < size) {
266 int write = static_cast<int>(fwrite(str, 1, size - total, f));
267 if (write == 0) {
268 return total;
269 }
270 total += write;
271 str += write;
272 }
273 return total;
274 }
275
276
277 int AppendChars(const char* filename,
278 const char* str,
279 int size,
280 bool verbose) {
281 FILE* f = OS::FOpen(filename, "ab");
282 if (f == NULL) {
283 if (verbose) {
284 OS::PrintError("Cannot open file %s for writing.\n", filename);
285 }
286 return 0;
287 }
288 int written = WriteCharsToFile(str, size, f);
289 fclose(f);
290 return written;
291 }
292
293
294 int WriteChars(const char* filename,
295 const char* str,
296 int size,
297 bool verbose) {
298 FILE* f = OS::FOpen(filename, "wb");
299 if (f == NULL) {
300 if (verbose) {
301 OS::PrintError("Cannot open file %s for writing.\n", filename);
302 }
303 return 0;
304 }
305 int written = WriteCharsToFile(str, size, f);
306 fclose(f);
307 return written;
308 }
309
310
311 int WriteBytes(const char* filename,
312 const byte* bytes,
313 int size,
314 bool verbose) {
315 const char* str = reinterpret_cast<const char*>(bytes);
316 return WriteChars(filename, str, size, verbose);
317 }
318
319
320
321 void StringBuilder::AddFormatted(const char* format, ...) {
322 va_list arguments;
323 va_start(arguments, format);
324 AddFormattedList(format, arguments);
325 va_end(arguments);
326 }
327
328
329 void StringBuilder::AddFormattedList(const char* format, va_list list) {
330 ASSERT(!is_finalized() && position_ <= buffer_.length());
331 int n = OS::VSNPrintF(buffer_ + position_, format, list);
332 if (n < 0 || n >= (buffer_.length() - position_)) {
333 position_ = buffer_.length();
334 } else {
335 position_ += n;
336 }
337 }
338
339
340 } } // namespace v8::internal 100 } } // namespace v8::internal
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