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[ruby/prism] Do not warn for unused variables on negative lines

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Fixes [Bug #20788]

https://github.com/ruby/prism/commit/27e91f21af
This commit is contained in:
Kevin Newton 2024-10-10 10:57:05 -04:00 committed by git
parent d12c8cbf14
commit b5ecb03ae4
2 changed files with 14 additions and 10 deletions
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2
prism/prism.c
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@ -962,6 +962,7 @@ pm_locals_order(PRISM_ATTRIBUTE_UNUSED pm_parser_t *parser, pm_locals_t *locals,
pm_constant_id_list_insert(list, (size_t) local->index, local->name);
if (warn_unused && local->reads == 0) {
if (pm_newline_list_line(&parser->newline_list, local->location.start, parser->start_line) >= 0) {
pm_constant_t *constant = pm_constant_pool_id_to_constant(&parser->constant_pool, local->name);
if (constant->length >= 1 && *constant->start != '_') {
@ -978,6 +979,7 @@ pm_locals_order(PRISM_ATTRIBUTE_UNUSED pm_parser_t *parser, pm_locals_t *locals,
}
}
}
}
/******************************************************************************/
/* Node-related functions */

2
test/prism/result/warnings_test.rb
View File

@ -259,6 +259,8 @@ module Prism
refute_warning("def foo; bar = 1; tap { bar }; end")
refute_warning("def foo; bar = 1; tap { baz = bar; baz }; end")
refute_warning("def foo; bar = 1; end", line: -2, compare: false)
end
def test_void_statements