77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
# Copyright (c) 2013 Paul Tagliamonte <paultag@debian.org>
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a
|
|
# copy of this software and associated documentation files (the "Software"),
|
|
# to deal in the Software without restriction, including without limitation
|
|
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
# and/or sell copies of the Software, and to permit persons to whom the
|
|
# Software is furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
# DEALINGS IN THE SOFTWARE.
|
|
|
|
from hy.models.expression import HyExpression
|
|
from hy.models.string import HyString
|
|
from hy.models.list import HyList
|
|
|
|
from collections import defaultdict
|
|
|
|
_hy_macros = defaultdict(dict)
|
|
|
|
|
|
def macro(name):
|
|
def _(fn):
|
|
module_name = fn.__module__
|
|
if module_name.startswith("hy.core"):
|
|
module_name = None
|
|
_hy_macros[module_name][name] = fn
|
|
return fn
|
|
return _
|
|
|
|
|
|
def require(source_module_name, target_module_name):
|
|
macros = _hy_macros[source_module_name]
|
|
refs = _hy_macros[target_module_name]
|
|
for name, macro in macros.items():
|
|
refs[name] = macro
|
|
|
|
|
|
def process(tree, module_name):
|
|
if isinstance(tree, HyExpression):
|
|
fn = tree[0]
|
|
if fn in ("quote", "quasiquote"):
|
|
return tree
|
|
ntree = HyExpression([fn] + [process(x, module_name) for x in tree[1:]])
|
|
ntree.replace(tree)
|
|
|
|
if isinstance(fn, HyString):
|
|
m = _hy_macros[module_name].get(fn)
|
|
if m is None:
|
|
m = _hy_macros[None].get(fn)
|
|
if m is not None:
|
|
obj = m(*ntree[1:])
|
|
obj.replace(tree)
|
|
return obj
|
|
|
|
ntree.replace(tree)
|
|
return ntree
|
|
|
|
if isinstance(tree, HyList):
|
|
obj = tree.__class__([process(x, module_name) for x in tree]) # NOQA
|
|
# flake8 thinks we're redefining from 52.
|
|
obj.replace(tree)
|
|
return obj
|
|
|
|
if isinstance(tree, list):
|
|
return [process(x, module_name) for x in tree]
|
|
|
|
return tree
|