pylintext.py
author Julien Cristau <julien.cristau@logilab.fr>
Fri, 18 Dec 2015 17:49:45 +0100
changeset 11047 bfd11ffa79f7
parent 10907 9ae707db5265
permissions -rw-r--r--
[entity] don't look at fetch order recursively If fetch_attrs includes relations, stop including the entities on the other side in our sorting. Fixes regression from 73ea636a5562 where we would sort on the target entity before the attribute we wanted if the relation's name sorted before the attribute's. This showed up in the forge/tracker cubes with Version entities being sorted by their State's name in preference to their version number.

"""https://pastebin.logilab.fr/show/860/"""

from astroid import MANAGER, InferenceError, nodes, scoped_nodes
from astroid.builder import AstroidBuilder

def turn_function_to_class(node):
    """turn a Function node into a Class node (in-place)"""
    node.__class__ = scoped_nodes.Class
    node.bases = ()
    # remove return nodes so that we don't get warned about 'return outside
    # function' by pylint
    for rnode in node.nodes_of_class(nodes.Return):
        rnode.parent.body.remove(rnode)
    # that seems to be enough :)


def cubicweb_transform(module):
    # handle objectify_predicate decorator (and its former name until bw compat
    # is kept). Only look at module level functions, should be enough.
    for assnodes in module.locals.values():
        for node in assnodes:
            if isinstance(node, scoped_nodes.Function) and node.decorators:
                for decorator in node.decorators.nodes:
                    try:
                        for infered in decorator.infer():
                            if infered.name in ('objectify_predicate', 'objectify_selector'):
                                turn_function_to_class(node)
                                break
                        else:
                            continue
                        break
                    except InferenceError:
                        continue
    # add yams base types into 'yams.buildobjs', astng doesn't grasp globals()
    # magic in there
    if module.name == 'yams.buildobjs':
        from yams import BASE_TYPES
        for etype in BASE_TYPES:
            module.locals[etype] = [scoped_nodes.Class(etype, None)]
    # add data() to uiprops module
    if module.name.split('.')[-1] == 'uiprops':
        fake = AstroidBuilder(MANAGER).string_build('''
def data(string):
  return u''
''')
        module.locals['data'] = fake.locals['data']

def register(linter):
    """called when loaded by pylint --load-plugins, nothing to do here"""
    MANAGER.register_transform(nodes.Module, cubicweb_transform)