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https://github.com/davidhalter/jedi.git
synced 2025-12-07 22:44:27 +08:00
nested list comprehensions are working + tests
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40
evaluate.py
40
evaluate.py
@@ -856,8 +856,6 @@ def get_names_for_scope(scope, position=None, star_search=True,
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"""
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start_scope = scope
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in_scope = scope
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if isinstance(start_scope, parsing.ForFlow) and start_scope.is_list_comp:
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yield start_scope, start_scope.get_set_vars(is_internal_call=True)
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while scope:
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# `parsing.Class` is used, because the parent is never `Class`.
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# Ignore the Flows, because the classes and functions care for that.
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@@ -869,6 +867,9 @@ def get_names_for_scope(scope, position=None, star_search=True,
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in_scope)
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except StopIteration:
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raise MultiLevelStopIteration('StopIteration raised somewhere')
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if isinstance(scope, parsing.ForFlow) and scope.is_list_comp:
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yield scope, scope.get_set_vars(is_internal_call=True)
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scope = scope.parent()
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# This is used, because subscopes (Flow scopes) would distort the
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# results.
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@@ -1179,9 +1180,23 @@ def follow_call_list(call_list):
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It is used to evaluate a two dimensional object, that has calls, arrays and
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operators in it.
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"""
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def evaluate_list_comprehension(self, call_list):
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for a in call_list:
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pass
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def evaluate_list_comprehension(lc, parent=None):
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input = lc.input
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nested_lc = lc.input.token_list[0]
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if isinstance(nested_lc, parsing.ListComprehension):
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# is nested LC
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input = nested_lc.stmt
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loop = parsing.ForFlow([input], lc.stmt.start_pos,
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lc.middle, True)
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if parent is None:
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loop.parent = weakref.ref(lc.stmt.parent())
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else:
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loop.parent = lambda: parent
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if isinstance(nested_lc, parsing.ListComprehension):
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loop = evaluate_list_comprehension(nested_lc, loop)
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return loop
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if parsing.Array.is_type(call_list, parsing.Array.TUPLE,
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parsing.Array.DICT):
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# Tuples can stand just alone without any braces. These would be
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@@ -1195,14 +1210,11 @@ def follow_call_list(call_list):
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if parsing.Array.is_type(call, parsing.Array.NOARRAY):
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result += follow_call_list(call)
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elif isinstance(call, parsing.ListComprehension):
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stmt = call.stmt
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loop = evaluate_list_comprehension(call)
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stmt = copy.copy(call.stmt)
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stmt.parent = lambda: loop
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# create a for loop which does the same as list
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# comprehensions
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loop = parsing.ForFlow([call.input], stmt.start_pos,
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call.middle, True)
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loop.parent = weakref.ref(stmt.parent())
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stmt = copy.copy(stmt)
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stmt.parent = lambda: loop
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result += follow_statement(stmt)
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else:
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if isinstance(call, (Function, Class, Instance,
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@@ -1267,11 +1279,7 @@ def follow_call_path(path, scope, position):
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# Reset the position, when imports where stripped.
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position = None
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debug.dbg('before next follow %s, current "%s", scope %s'
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% (result, current, scope))
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result = follow_paths(path, result, position=position)
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return result
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return follow_paths(path, result, position=position)
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def follow_paths(path, results, position=None):
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@@ -66,6 +66,10 @@ a = [a for a in [1]]
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#? int()
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a[0]
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a = [a for a in 1,2]
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#? int()
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a[0]
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a = [a for a,b in [(1,'')]]
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#? int()
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a[0]
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@@ -75,6 +79,26 @@ a = [a for a in arr]
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#? int() str()
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a[0]
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a = [a if 1.0 else '' for a in [1] if [1.0]]
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#? int() str()
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a[0]
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# -----------------
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# nested list comprehensions
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# -----------------
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b = [a for arr in [[1]] for a in arr]
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#? int()
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b[0]
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b = [a for arr in [[1]] if '' for a in arr if '']
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#? int()
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b[0]
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b = [b for arr in [[[1.0]]] for a in arr for b in a]
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#? float()
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b[0]
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# -----------------
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# ternary operator
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# -----------------
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