forked from VimPlug/jedi
125 lines
4.4 KiB
Python
125 lines
4.4 KiB
Python
from __future__ import with_statement
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import copy
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from jedi import common
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from jedi.parser import representation as pr
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def fast_parent_copy(obj):
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"""
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Much, much faster than copy.deepcopy, but just for certain elements.
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"""
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new_elements = {}
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def recursion(obj):
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if isinstance(obj, pr.Statement):
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# Need to set _set_vars, otherwise the cache is not working
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# correctly, don't know why.
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obj.get_set_vars()
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new_obj = copy.copy(obj)
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new_elements[obj] = new_obj
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try:
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items = list(new_obj.__dict__.items())
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except AttributeError:
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# __dict__ not available, because of __slots__
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items = []
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before = ()
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for cls in new_obj.__class__.__mro__:
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with common.ignored(AttributeError):
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if before == cls.__slots__:
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continue
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before = cls.__slots__
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items += [(n, getattr(new_obj, n)) for n in before]
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for key, value in items:
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# replace parent (first try _parent and then parent)
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if key in ['parent', '_parent'] and value is not None:
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if key == 'parent' and '_parent' in items:
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# parent can be a property
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continue
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with common.ignored(KeyError):
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setattr(new_obj, key, new_elements[value])
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elif key in ['parent_function', 'use_as_parent', '_sub_module']:
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continue
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elif isinstance(value, list):
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setattr(new_obj, key, list_rec(value))
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elif isinstance(value, pr.Simple):
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setattr(new_obj, key, recursion(value))
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return new_obj
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def list_rec(list_obj):
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copied_list = list_obj[:] # lists, tuples, strings, unicode
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for i, el in enumerate(copied_list):
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if isinstance(el, pr.Simple):
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copied_list[i] = recursion(el)
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elif isinstance(el, list):
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copied_list[i] = list_rec(el)
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return copied_list
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return recursion(obj)
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def array_for_pos(stmt, pos, array_types=None):
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"""Searches for the array and position of a tuple"""
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def search_array(arr, pos):
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if arr.type == 'dict':
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for stmt in arr.values + arr.keys:
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new_arr, index = array_for_pos(stmt, pos, array_types)
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if new_arr is not None:
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return new_arr, index
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else:
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for i, stmt in enumerate(arr):
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new_arr, index = array_for_pos(stmt, pos, array_types)
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if new_arr is not None:
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return new_arr, index
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if arr.start_pos < pos <= stmt.end_pos:
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if not array_types or arr.type in array_types:
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return arr, i
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if len(arr) == 0 and arr.start_pos < pos < arr.end_pos:
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if not array_types or arr.type in array_types:
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return arr, 0
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return None, 0
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def search_call(call, pos):
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arr, index = None, 0
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if call.next is not None:
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if isinstance(call.next, pr.Array):
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arr, index = search_array(call.next, pos)
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else:
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arr, index = search_call(call.next, pos)
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if not arr and call.execution is not None:
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arr, index = search_array(call.execution, pos)
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return arr, index
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if stmt.start_pos >= pos >= stmt.end_pos:
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return None, 0
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for command in stmt.expression_list():
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arr = None
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if isinstance(command, pr.Array):
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arr, index = search_array(command, pos)
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elif isinstance(command, pr.StatementElement):
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arr, index = search_call(command, pos)
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if arr is not None:
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return arr, index
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return None, 0
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def search_call_signatures(stmt, pos):
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"""
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Returns the function Call that matches the position before.
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"""
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# some parts will of the statement will be removed
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stmt = fast_parent_copy(stmt)
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arr, index = array_for_pos(stmt, pos, [pr.Array.TUPLE, pr.Array.NOARRAY])
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if arr is not None and isinstance(arr.parent, pr.StatementElement):
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call = arr.parent
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while isinstance(call.parent, pr.StatementElement):
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call = call.parent
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arr.parent.execution = None
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return call if isinstance(call, pr.Call) else None, index, False
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return None, 0, False
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