pylintext.py
author Pierre-Yves David <pierre-yves.david@logilab.fr>
Fri, 16 Mar 2012 14:23:58 +0100
changeset 8318 e8a2fd7d9606
parent 8216 99ff746e8de8
child 8696 0bb18407c053
permissions -rw-r--r--
devtools-request: transmit the headers keyword argument to the request class Otherwise the headers kwargs end up in the form. This is very useful for testing publish logic related to http header (as cache).
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"""https://pastebin.logilab.fr/show/860/"""
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from logilab.astng import MANAGER, nodes, scoped_nodes
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from logilab.astng.builder import ASTNGBuilder
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def turn_function_to_class(node):
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    """turn a Function node into a Class node (in-place)"""
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    node.__class__ = scoped_nodes.Class
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    node.bases = ()
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    # remove return nodes so that we don't get warned about 'return outside
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    # function' by pylint
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    for rnode in node.nodes_of_class(nodes.Return):
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        rnode.parent.body.remove(rnode)
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    # that seems to be enough :)
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def cubicweb_transform(module):
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    # handle objectify_predicate decorator (and its former name until bw compat
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    # is kept). Only look at module level functions, should be enough.
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    for assnodes in module.locals.values():
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        for node in assnodes:
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            if isinstance(node, scoped_nodes.Function) and node.decorators:
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                for decorator in node.decorators.nodes:
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                    for infered in decorator.infer():
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                        if infered.name in ('objectify_predicate', 'objectify_selector'):
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                            turn_function_to_class(node)
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                            break
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                    else:
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                        continue
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                    break
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    # add yams base types into 'yams.buildobjs', astng doesn't grasp globals()
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    # magic in there
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    if module.name == 'yams.buildobjs':
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        from yams import BASE_TYPES
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        for etype in BASE_TYPES:
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            module.locals[etype] = [scoped_nodes.Class(etype, None)]
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    # add data() to uiprops module
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    if module.name.split('.')[-1] == 'uiprops':
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        fake = ASTNGBuilder(MANAGER).string_build('''
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def data(string):
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  return u''
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''')
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        module.locals['data'] = fake.locals['data']
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def register(linter):
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    """called when loaded by pylint --load-plugins, nothing to do here"""
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    MANAGER.register_transformer(cubicweb_transform)
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