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bpo-41119: Output correct error message for list/tuple followed by colon (GH-21160)

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Lysandros Nikolaou 2020-06-26 02:22:36 +03:00 committed by GitHub
parent 6f8a6ee59c
commit 4b85e60601
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2 changed files with 464 additions and 500 deletions
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8
Grammar/python.gram
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@ -646,11 +646,11 @@ invalid_named_expression:
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(
a, "cannot use assignment expressions with %s", _PyPegen_get_expr_name(a)) }
invalid_assignment:
| a=list ':' { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "only single target (not list) can be annotated") }
| a=tuple ':' { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "only single target (not tuple) can be annotated") }
| a=star_named_expression ',' star_named_expressions* ':' {
| a=list ':' expression { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "only single target (not list) can be annotated") }
| a=tuple ':' expression { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "only single target (not tuple) can be annotated") }
| a=star_named_expression ',' star_named_expressions* ':' expression {
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "only single target (not tuple) can be annotated") }
| a=expression ':' expression ['=' annotated_rhs] {
| a=expression ':' expression {
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "illegal target for annotation") }
| (star_targets '=')* a=star_expressions '=' {
RAISE_SYNTAX_ERROR_INVALID_TARGET(STAR_TARGETS, a) }

952
Parser/parser.c
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