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1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
2 # | 2 # |
3 # Copyright 2006-2008 the V8 project authors. All rights reserved. | 3 # Copyright 2006-2008 the V8 project authors. All rights reserved. |
4 # Redistribution and use in source and binary forms, with or without | 4 # Redistribution and use in source and binary forms, with or without |
5 # modification, are permitted provided that the following conditions are | 5 # modification, are permitted provided that the following conditions are |
6 # met: | 6 # met: |
7 # | 7 # |
8 # * Redistributions of source code must retain the above copyright | 8 # * Redistributions of source code must retain the above copyright |
9 # notice, this list of conditions and the following disclaimer. | 9 # notice, this list of conditions and the following disclaimer. |
10 # * Redistributions in binary form must reproduce the above | 10 # * Redistributions in binary form must reproduce the above |
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25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | 29 |
30 # This is a utility for converting JavaScript source code into C-style | 30 # This is a utility for converting JavaScript source code into C-style |
31 # char arrays. It is used for embedded JavaScript code in the V8 | 31 # char arrays. It is used for embedded JavaScript code in the V8 |
32 # library. | 32 # library. |
33 | 33 |
34 import os, re, sys, string | 34 import os, re, sys, string |
| 35 import jsmin |
35 | 36 |
36 | 37 |
37 def ToCArray(lines): | 38 def ToCArray(lines): |
38 result = [] | 39 result = [] |
39 for chr in lines: | 40 for chr in lines: |
40 value = ord(chr) | 41 value = ord(chr) |
41 assert value < 128 | 42 assert value < 128 |
42 result.append(str(value)) | 43 result.append(str(value)) |
43 result.append("0") | 44 result.append("0") |
44 return ", ".join(result) | 45 return ", ".join(result) |
45 | 46 |
46 | 47 |
47 def CompressScript(lines): | 48 def CompressScript(lines, do_jsmin): |
| 49 # If we're not expecting this code to be user visible, we can run it through |
| 50 # a more aggressive minifier. |
| 51 if do_jsmin: |
| 52 return jsmin.jsmin(lines) |
| 53 |
48 # Remove stuff from the source that we don't want to appear when | 54 # Remove stuff from the source that we don't want to appear when |
49 # people print the source code using Function.prototype.toString(). | 55 # people print the source code using Function.prototype.toString(). |
50 # Note that we could easily compress the scripts mode but don't | 56 # Note that we could easily compress the scripts mode but don't |
51 # since we want it to remain readable. | 57 # since we want it to remain readable. |
52 lines = re.sub('//.*\n', '\n', lines) # end-of-line comments | 58 lines = re.sub('//.*\n', '\n', lines) # end-of-line comments |
53 lines = re.sub(re.compile(r'/\*.*?\*/', re.DOTALL), '', lines) # comments. | 59 lines = re.sub(re.compile(r'/\*.*?\*/', re.DOTALL), '', lines) # comments. |
54 lines = re.sub('\s+\n+', '\n', lines) # trailing whitespace | 60 lines = re.sub('\s+\n+', '\n', lines) # trailing whitespace |
55 return lines | 61 return lines |
56 | 62 |
57 | 63 |
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265 (consts, macros) = ReadMacros(ReadLines(str(s))) | 271 (consts, macros) = ReadMacros(ReadLines(str(s))) |
266 else: | 272 else: |
267 modules.append(s) | 273 modules.append(s) |
268 | 274 |
269 # Build source code lines | 275 # Build source code lines |
270 source_lines = [ ] | 276 source_lines = [ ] |
271 source_lines_empty = [] | 277 source_lines_empty = [] |
272 for s in modules: | 278 for s in modules: |
273 delay = str(s).endswith('-delay.js') | 279 delay = str(s).endswith('-delay.js') |
274 lines = ReadFile(str(s)) | 280 lines = ReadFile(str(s)) |
| 281 do_jsmin = lines.find('// jsminify this file, js2c: jsmin') != -1 |
275 lines = ExpandConstants(lines, consts) | 282 lines = ExpandConstants(lines, consts) |
276 lines = ExpandMacros(lines, macros) | 283 lines = ExpandMacros(lines, macros) |
277 lines = CompressScript(lines) | 284 lines = CompressScript(lines, do_jsmin) |
278 data = ToCArray(lines) | 285 data = ToCArray(lines) |
279 id = (os.path.split(str(s))[1])[:-3] | 286 id = (os.path.split(str(s))[1])[:-3] |
280 if delay: id = id[:-6] | 287 if delay: id = id[:-6] |
281 if delay: | 288 if delay: |
282 delay_ids.append((id, len(lines))) | 289 delay_ids.append((id, len(lines))) |
283 else: | 290 else: |
284 ids.append((id, len(lines))) | 291 ids.append((id, len(lines))) |
285 source_lines.append(SOURCE_DECLARATION % { 'id': id, 'data': data }) | 292 source_lines.append(SOURCE_DECLARATION % { 'id': id, 'data': data }) |
286 source_lines_empty.append(SOURCE_DECLARATION % { 'id': id, 'data': 0 }) | 293 source_lines_empty.append(SOURCE_DECLARATION % { 'id': id, 'data': 0 }) |
287 | 294 |
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349 | 356 |
350 def main(): | 357 def main(): |
351 natives = sys.argv[1] | 358 natives = sys.argv[1] |
352 natives_empty = sys.argv[2] | 359 natives_empty = sys.argv[2] |
353 type = sys.argv[3] | 360 type = sys.argv[3] |
354 source_files = sys.argv[4:] | 361 source_files = sys.argv[4:] |
355 JS2C(source_files, [natives, natives_empty], { 'TYPE': type }) | 362 JS2C(source_files, [natives, natives_empty], { 'TYPE': type }) |
356 | 363 |
357 if __name__ == "__main__": | 364 if __name__ == "__main__": |
358 main() | 365 main() |
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