fix(checker): correct variadic method arg type #889
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When checking arguments for variadic methods, the index passed to
InElem used "fnNumIn-1", but fnNumIn had already been decremented
to exclude the receiver. This caused InElem to access the receiver
type (index 0) instead of the variadic parameter type, causing a
type error ("cannot use string as argument").
Add "fnInOffset" to the index calculation to correctly reference the
variadic parameter. Regression tests included.
Signed-off-by: Ville Vesilehto <[email protected]>
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antonmedv
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Dec 25, 2025
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When checking arguments for variadic methods, the index passed to InElem used "fnNumIn-1", but fnNumIn had already been decremented to exclude the receiver. This caused InElem to access the receiver type (index 0) instead of the variadic parameter type, causing a type error ("cannot use string as argument").
Add "fnInOffset" to the index calculation to correctly reference the variadic parameter. Regression tests included.
Fixes #888.