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1 """https://pastebin.logilab.fr/show/860/""" |
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2 |
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3 from astroid import MANAGER, InferenceError, nodes, scoped_nodes |
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4 from astroid.builder import AstroidBuilder |
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5 |
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6 def turn_function_to_class(node): |
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7 """turn a Function node into a Class node (in-place)""" |
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8 node.__class__ = scoped_nodes.Class |
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9 node.bases = () |
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10 # remove return nodes so that we don't get warned about 'return outside |
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11 # function' by pylint |
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12 for rnode in node.nodes_of_class(nodes.Return): |
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13 rnode.parent.body.remove(rnode) |
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14 # that seems to be enough :) |
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15 |
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16 |
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17 def cubicweb_transform(module): |
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18 # handle objectify_predicate decorator (and its former name until bw compat |
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19 # is kept). Only look at module level functions, should be enough. |
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20 for assnodes in module.locals.values(): |
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21 for node in assnodes: |
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22 if isinstance(node, scoped_nodes.Function) and node.decorators: |
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23 for decorator in node.decorators.nodes: |
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24 try: |
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25 for infered in decorator.infer(): |
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26 if infered.name in ('objectify_predicate', 'objectify_selector'): |
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27 turn_function_to_class(node) |
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28 break |
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29 else: |
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30 continue |
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31 break |
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32 except InferenceError: |
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33 continue |
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34 # add yams base types into 'yams.buildobjs', astng doesn't grasp globals() |
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35 # magic in there |
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36 if module.name == 'yams.buildobjs': |
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37 from yams import BASE_TYPES |
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38 for etype in BASE_TYPES: |
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39 module.locals[etype] = [scoped_nodes.Class(etype, None)] |
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40 # add data() to uiprops module |
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41 if module.name.split('.')[-1] == 'uiprops': |
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42 fake = AstroidBuilder(MANAGER).string_build(''' |
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43 def data(string): |
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44 return u'' |
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45 ''') |
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46 module.locals['data'] = fake.locals['data'] |
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47 |
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48 def register(linter): |
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49 """called when loaded by pylint --load-plugins, nothing to do here""" |
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50 MANAGER.register_transform(nodes.Module, cubicweb_transform) |