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author | David Robillard <d@drobilla.net> | 2018-11-24 13:44:02 +0100 |
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committer | David Robillard <d@drobilla.net> | 2018-11-24 13:44:02 +0100 |
commit | d74de7f575a9ec49f96138c3c5251f28946c0c0e (patch) | |
tree | d9b620bfba1e7462df4ddb3f6225cc5216c0ca81 /extras/c_dumbpreproc.py | |
parent | c6e874c2cc1c5c99a3859112e1bba0f07bcdb8ba (diff) | |
download | ganv-d74de7f575a9ec49f96138c3c5251f28946c0c0e.tar.gz ganv-d74de7f575a9ec49f96138c3c5251f28946c0c0e.tar.bz2 ganv-d74de7f575a9ec49f96138c3c5251f28946c0c0e.zip |
Squashed 'waflib/' changes from 6e726eb..5ea8f99
5ea8f99 Improve test output spacing
0e23b29 Raise exception when test suite fails to ensure non-zero exit status
d6de073 Show run time of unit tests
5b65554 Add short configure option for ultra-strict flags
4687ba6 Use gtest-like test output
258903d Fix failure count in test group summaries
da07e73 Fix verbose tests with Python 3
git-subtree-dir: waflib
git-subtree-split: 5ea8f99f6e1246079c1fe6bb590c38a53aadd40d
Diffstat (limited to 'extras/c_dumbpreproc.py')
-rw-r--r-- | extras/c_dumbpreproc.py | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/extras/c_dumbpreproc.py b/extras/c_dumbpreproc.py new file mode 100644 index 0000000..ce9e1a4 --- /dev/null +++ b/extras/c_dumbpreproc.py @@ -0,0 +1,72 @@ +#!/usr/bin/env python +# encoding: utf-8 +# Thomas Nagy, 2006-2010 (ita) + +""" +Dumb C/C++ preprocessor for finding dependencies + +It will look at all include files it can find after removing the comments, so the following +will always add the dependency on both "a.h" and "b.h":: + + #include "a.h" + #ifdef B + #include "b.h" + #endif + int main() { + return 0; + } + +To use:: + + def configure(conf): + conf.load('compiler_c') + conf.load('c_dumbpreproc') +""" + +import re +from waflib.Tools import c_preproc + +re_inc = re.compile( + '^[ \t]*(#|%:)[ \t]*(include)[ \t]*[<"](.*)[>"]\r*$', + re.IGNORECASE | re.MULTILINE) + +def lines_includes(node): + code = node.read() + if c_preproc.use_trigraphs: + for (a, b) in c_preproc.trig_def: + code = code.split(a).join(b) + code = c_preproc.re_nl.sub('', code) + code = c_preproc.re_cpp.sub(c_preproc.repl, code) + return [(m.group(2), m.group(3)) for m in re.finditer(re_inc, code)] + +parser = c_preproc.c_parser +class dumb_parser(parser): + def addlines(self, node): + if node in self.nodes[:-1]: + return + self.currentnode_stack.append(node.parent) + + # Avoid reading the same files again + try: + lines = self.parse_cache[node] + except KeyError: + lines = self.parse_cache[node] = lines_includes(node) + + self.lines = lines + [(c_preproc.POPFILE, '')] + self.lines + + def start(self, node, env): + try: + self.parse_cache = node.ctx.parse_cache + except AttributeError: + self.parse_cache = node.ctx.parse_cache = {} + + self.addlines(node) + while self.lines: + (x, y) = self.lines.pop(0) + if x == c_preproc.POPFILE: + self.currentnode_stack.pop() + continue + self.tryfind(y) + +c_preproc.c_parser = dumb_parser + |