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42 lines
1.8 KiB
42 lines
1.8 KiB
#!/usr/bin/python
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#
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# Fix a few errors from Emscripten output (stopgap until emscripten mainline
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# is updated).
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import os
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import sys
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fix_count = 0
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for line in sys.stdin:
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if len(line) > 1 and line[-1] == '\n':
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line = line[:-1]
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if line == r""" if (/<?{ ?[^}]* ?}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types""":
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# RegExp fix, now fixed in the Emscripten repository and should no longer
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# be necessary.
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# https://github.com/kripken/emscripten/commit/277ac5239057721ebe3c6e7813dc478eeab2cea0
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print(r""" if (/<?\{ ?[^}]* ?\}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types""")
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fix_count += 1
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elif line == r""" var sourceRegex = /^function\s\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;""":
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# GH-11: Another RegExp escaping fix.
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print(r""" var sourceRegex = /^function\s\(([^)]*)\)\s*\{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?\}$/;""")
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fix_count += 1
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elif line == r""" var sourceRegex = /^function\s*\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;""":
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# Another variant of above
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print(r""" var sourceRegex = /^function\s*\(([^)]*)\)\s*\{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?\}$/;""")
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fix_count += 1
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elif line == r""" var parsed = jsfunc.toString().match(sourceRegex).slice(1);""":
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# GH-11: Attempt to parse a function's toString() output with a RegExp.
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# The RegExp makes invalid assumptions and won't parse Duktape's function
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# toString output ("function empty() {/* source code*/)}").
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# This stopgap will prevent a 'TypeError: invalid base reference for property read'
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# and allows at least a hello world to run.
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print(r""" var parsed = (jsfunc.toString().match(sourceRegex) || []).slice(1);""")
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else:
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print(line)
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if fix_count > 0:
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sys.stderr.write('Emscripten fixes needed (fix_emscripten.py): fix_count=%d' % fix_count)
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sys.stderr.flush()
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