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AstInterpreter: Slight Performance Improvement #15754

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Merged
bonzini merged 1 commit into from
Apr 28, 2026
Merged

AstInterpreter: Slight Performance Improvement #15754

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8 changes: 3 additions & 5 deletions mesonbuild/ast/interpreter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -494,14 +494,12 @@ def func_files(self, node: BaseNode, args: T.List[TYPE_var], kwargs: T.Dict[str,
def get_cur_value_if_defined(self, var_name: str) -> T.Union[BaseNode, UnknownValue, UndefinedVariable]:
if var_name in self.predefined_vars:
return self.predefined_vars[var_name]
ret: T.Union[BaseNode, UnknownValue, UndefinedVariable] = UndefinedVariable()
for nesting, value in reversed(self.cur_assignments[var_name]):
if len(self.nesting) >= len(nesting) and self.nesting[:len(nesting)] == nesting:
ret = value
break
if isinstance(ret, UndefinedVariable) and self.tainted:
return value
if self.tainted:
return UnknownValue()
return ret
return UndefinedVariable()

def get_cur_value(self, var_name: str) -> T.Union[BaseNode, UnknownValue]:
ret = self.get_cur_value_if_defined(var_name)
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