fix(checker): detect $env() calls at compile time #923
+63
−16
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Previously, expressions like `$env(abs())` would compile without error
and cause a runtime "stack underflow" panic. The checker now validates
that $env cannot be used as a function callee, producing a clear error
message like "map[string]interface {} is not callable".
Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
antonmedv
approved these changes
Feb 5, 2026
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Previously, expressions like
$env(abs())would compile without error and cause a runtime "stack underflow" panic. The checker now validates that $env cannot be used as a function callee, producing a clear error message like "map[string]interface {} is not callable".Maybe a more long-term fix would be to add an
EnvNodeAST type. Now$envis used here and there as-is.Relates to #922.