forked from VimPlug/jedi
125 lines
4.4 KiB
Python
125 lines
4.4 KiB
Python
from jedi.inference import imports
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from jedi.inference.filters import ParserTreeFilter
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from jedi.inference.gradual.conversion import convert_names
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def _resolve_names(definition_names, avoid_names=()):
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for name in definition_names:
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if name in avoid_names:
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# Avoiding recursions here, because goto on a module name lands
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# on the same module.
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continue
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if not isinstance(name, imports.SubModuleName):
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# SubModuleNames are not actually existing names but created
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# names when importing something like `import foo.bar.baz`.
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yield name
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if name.api_type == 'module':
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for name in _resolve_names(name.goto(), definition_names):
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yield name
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def _dictionarize(names):
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return dict(
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(n if n.tree_name is None else n.tree_name, n)
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for n in names
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)
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def _find_defining_names(module_context, tree_name):
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found_names = _find_names(module_context, tree_name)
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for name in list(found_names):
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# Convert from/to stubs, because those might also be usages.
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found_names |= set(convert_names(
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[name],
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only_stubs=not name.get_root_context().is_stub(),
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prefer_stub_to_compiled=False
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))
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found_names |= set(_find_global_variables(found_names, tree_name.value))
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for name in list(found_names):
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if name.api_type == 'param' or name.tree_name is None \
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or name.tree_name.parent.type == 'trailer':
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continue
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found_names |= set(_add_names_in_same_context(name.parent_context, name.string_name))
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return set(_resolve_names(found_names))
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def _find_names(module_context, tree_name):
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name = module_context.create_name(tree_name)
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found_names = set(name.goto())
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found_names.add(name)
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return set(_resolve_names(found_names))
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def _add_names_in_same_context(context, string_name):
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if context.tree_node is None:
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return
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until_position = None
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while True:
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filter_ = ParserTreeFilter(
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parent_context=context,
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until_position=until_position,
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)
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names = set(filter_.get(string_name))
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if not names:
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break
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for name in names:
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yield name
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ordered = sorted(names, key=lambda x: x.start_pos)
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until_position = ordered[0].start_pos
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def _find_global_variables(names, search_name):
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for name in names:
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if name.tree_name is None:
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continue
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module_context = name.get_root_context()
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try:
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method = module_context.get_global_filter
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except AttributeError:
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continue
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else:
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for global_name in method().get(search_name):
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yield global_name
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c = module_context.create_context(global_name.tree_name)
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for name in _add_names_in_same_context(c, global_name.string_name):
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yield name
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def find_references(module_context, tree_name):
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search_name = tree_name.value
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found_names = _find_defining_names(module_context, tree_name)
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found_names_dct = _dictionarize(found_names)
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module_contexts = set(d.get_root_context() for d in found_names)
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module_contexts = set(m for m in module_contexts if not m.is_compiled())
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non_matching_reference_maps = {}
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inf = module_context.inference_state
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potential_modules = imports.get_module_contexts_containing_name(
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inf, module_contexts, search_name
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)
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for module_context in potential_modules:
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for name_leaf in module_context.tree_node.get_used_names().get(search_name, []):
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new = _dictionarize(_find_names(module_context, name_leaf))
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if any(tree_name in found_names_dct for tree_name in new):
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found_names_dct.update(new)
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for tree_name in new:
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for dct in non_matching_reference_maps.get(tree_name, []):
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# A reference that was previously searched for matches
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# with a now found name. Merge.
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found_names_dct.update(dct)
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try:
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del non_matching_reference_maps[tree_name]
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except KeyError:
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pass
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else:
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for name in new:
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non_matching_reference_maps.setdefault(name, []).append(new)
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return found_names_dct.values()
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