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author | David Robillard <d@drobilla.net> | 2018-09-15 18:29:55 +0200 |
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committer | David Robillard <d@drobilla.net> | 2018-09-15 18:29:55 +0200 |
commit | 812c56d4b5167ba90c0ad8f4eb8ce1774efc5cbd (patch) | |
tree | 2a8fe0f824cd8f9d9929e69b3717ac332a54cd09 /waflib/Tools/bison.py | |
parent | dc3db773eef6e735e240dfe1a5349fbce3eff6e9 (diff) | |
parent | 394c6862c3d82833fa87eb9689c3bc99d978b93b (diff) | |
download | ganv-812c56d4b5167ba90c0ad8f4eb8ce1774efc5cbd.tar.gz ganv-812c56d4b5167ba90c0ad8f4eb8ce1774efc5cbd.tar.bz2 ganv-812c56d4b5167ba90c0ad8f4eb8ce1774efc5cbd.zip |
Merge commit '394c6862c3d82833fa87eb9689c3bc99d978b93b' as 'waflib'
Diffstat (limited to 'waflib/Tools/bison.py')
-rw-r--r-- | waflib/Tools/bison.py | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/waflib/Tools/bison.py b/waflib/Tools/bison.py new file mode 100644 index 0000000..eef56dc --- /dev/null +++ b/waflib/Tools/bison.py @@ -0,0 +1,49 @@ +#!/usr/bin/env python +# encoding: utf-8 +# John O'Meara, 2006 +# Thomas Nagy 2009-2018 (ita) + +""" +The **bison** program is a code generator which creates C or C++ files. +The generated files are compiled into object files. +""" + +from waflib import Task +from waflib.TaskGen import extension + +class bison(Task.Task): + """Compiles bison files""" + color = 'BLUE' + run_str = '${BISON} ${BISONFLAGS} ${SRC[0].abspath()} -o ${TGT[0].name}' + ext_out = ['.h'] # just to make sure + +@extension('.y', '.yc', '.yy') +def big_bison(self, node): + """ + Creates a bison task, which must be executed from the directory of the output file. + """ + has_h = '-d' in self.env.BISONFLAGS + + outs = [] + if node.name.endswith('.yc'): + outs.append(node.change_ext('.tab.cc')) + if has_h: + outs.append(node.change_ext('.tab.hh')) + else: + outs.append(node.change_ext('.tab.c')) + if has_h: + outs.append(node.change_ext('.tab.h')) + + tsk = self.create_task('bison', node, outs) + tsk.cwd = node.parent.get_bld() + + # and the c/cxx file must be compiled too + self.source.append(outs[0]) + +def configure(conf): + """ + Detects the *bison* program + """ + conf.find_program('bison', var='BISON') + conf.env.BISONFLAGS = ['-d'] + |