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[Bug #20417] Block local variables do not need to warn about unused

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Nobuyoshi Nakada 2024-04-10 22:44:33 +09:00
parent 5d9fd674c9
commit 207788466e
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2 changed files with 10 additions and 0 deletions
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4
parse.y
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@ -13814,6 +13814,10 @@ new_bv(struct parser_params *p, ID name)
} }
if (!shadowing_lvar_0(p, name)) return; if (!shadowing_lvar_0(p, name)) return;
dyna_var(p, name); dyna_var(p, name);
ID *vidp = 0;
if (dvar_defined_ref(p, name, &vidp)) {
if (vidp) *vidp |= LVAR_USED;
}
} }
static void static void

6
test/ruby/test_ast.rb
View File

@ -1232,6 +1232,12 @@ dummy
EXP EXP
end end
def test_unused_block_local_variable
assert_warning('') do
RubyVM::AbstractSyntaxTree.parse(%{->(; foo) {}})
end
end
def assert_error_tolerant(src, expected, keep_tokens: false) def assert_error_tolerant(src, expected, keep_tokens: false)
begin begin
verbose_bak, $VERBOSE = $VERBOSE, false verbose_bak, $VERBOSE = $VERBOSE, false