Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-31 04:23:37 +00:00
Code Issues Projects Releases Packages Wiki Activity

gh-109114: Relax the check for invalid lambdas inside f-strings to avoid false positives (#109121)

Browse source
This commit is contained in:
Pablo Galindo Salgado 2023-09-08 18:00:23 +01:00 • committed by GitHub
parent 87a7faf6b6
commit 5bda2f637e
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 1697 additions and 1749 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Grammar/python.gram
View file

@ -1170,7 +1170,7 @@ invalid_expression:
_PyPegen_check_legacy_stmt(p, a) ? NULL : p->tokens[p->mark-1]->level == 0 ? NULL :
RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "invalid syntax. Perhaps you forgot a comma?") }
| a=disjunction 'if' b=disjunction !('else'|':') { RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "expected 'else' after 'if' expression") }
| a='lambda' [lambda_params] b=':' &(FSTRING_MIDDLE | fstring_replacement_field) {
| a='lambda' [lambda_params] b=':' &FSTRING_MIDDLE {
RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "f-string: lambda expressions are not allowed without parentheses") }
invalid_named_expression(memo):