mirror of
https://gitlab.com/ita1024/waf.git
synced 2024-11-29 05:21:23 +01:00
50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
#!/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']
|
|
|