def preprocess(self, source, output_file=None, macros=None,
include_dirs=None, extra_preargs=None,
extra_postargs=None):
_, macros, include_dirs = \
self._fix_compile_args(None, macros, include_dirs)
pp_opts = gen_preprocess_options(macros, include_dirs)
pp_args = ['cpp32.exe'] + pp_opts
if output_file is not None:
pp_args.append('-o' + output_file)
if extra_preargs:
pp_args[:0] = extra_preargs
if extra_postargs:
pp_args.extend(extra_postargs)
pp_args.append(source)
# We need to preprocess: either we're being forced to, or the
# source file is newer than the target (or the target doesn't
# exist).
if self.force or output_file is None or newer(source, output_file):
if output_file:
self.mkpath(os.path.dirname(output_file))
try:
self.spawn(pp_args)
except PackagingExecError as msg:
raise CompileError(msg)
def _setup_compile(self, outdir, macros, incdirs, sources, depends, extra):
"""Process arguments and decide which source files to compile."""
if outdir is None:
outdir = self.output_dir
elif not isinstance(outdir, str):
raise TypeError("'output_dir' must be a string or None")
if macros is None:
macros = self.macros
elif isinstance(macros, list):
macros = macros + (self.macros or [])
else:
raise TypeError("'macros' (if supplied) must be a list of tuples")
if incdirs is None:
incdirs = self.include_dirs
elif isinstance(incdirs, (list, tuple)):
incdirs = list(incdirs) + (self.include_dirs or [])
else:
raise TypeError("'include_dirs' (if supplied) must be a list of strings")
if extra is None:
extra = []
# Get the list of expected output (object) files
objects = self.object_filenames(sources, strip_dir=False, output_dir=outdir)
assert len(objects) == len(sources)
pp_opts = gen_preprocess_options(macros, incdirs)
build = {}
for i in range(len(sources)):
src = sources[i]
obj = objects[i]
ext = os.path.splitext(src)[1]
self.mkpath(os.path.dirname(obj))
build[obj] = (src, ext)
return macros, objects, extra, pp_opts, build