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use correct error for unused bind match, suppress with underscore

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Nathan Franke 2022-06-03 12:42:03 -05:00
parent c0bf18e923
commit 3d61246bc4
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GPG key ID: 082B90CF10A5B648
3 changed files with 21 additions and 2 deletions
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4
modules/gdscript/gdscript_analyzer.cpp
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@ -1657,8 +1657,8 @@ void GDScriptAnalyzer::resolve_match_pattern(GDScriptParser::PatternNode *p_matc
p_match_pattern->bind->set_datatype(result);
#ifdef DEBUG_ENABLED
is_shadowing(p_match_pattern->bind, "pattern bind");
if (p_match_pattern->bind->usages == 0) {
parser->push_warning(p_match_pattern->bind, GDScriptWarning::UNASSIGNED_VARIABLE, p_match_pattern->bind->name);
if (p_match_pattern->bind->usages == 0 && !String(p_match_pattern->bind->name).begins_with("_")) {
parser->push_warning(p_match_pattern->bind, GDScriptWarning::UNUSED_VARIABLE, p_match_pattern->bind->name);
}
#endif
break;

13
modules/gdscript/tests/scripts/parser/features/match_bind_unused.gd Normal file
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@ -0,0 +1,13 @@
# https://github.com/godotengine/godot/pull/61666
func test():
var dict := {"key": "value"}
match dict:
{"key": var value}:
print(value) # used, no warning
match dict:
{"key": var value}:
pass # unused, warning
match dict:
{"key": var _value}:
pass # unused, suppressed warning from underscore

6
modules/gdscript/tests/scripts/parser/features/match_bind_unused.out Normal file
View file

@ -0,0 +1,6 @@
GDTEST_OK
>> WARNING
>> Line: 9
>> UNUSED_VARIABLE
>> The local variable 'value' is declared but never used in the block. If this is intended, prefix it with an underscore: '_value'
value