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compiler error for missing return value

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This commit is contained in:
Irmen de Jong 2021-01-10 16:36:08 +01:00
parent 506ac8014c
commit a0ec37b35b
1 changed files with 4 additions and 0 deletions
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4
compiler/src/prog8/ast/processing/AstChecker.kt
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@ -879,6 +879,10 @@ internal class AstChecker(private val program: Program,
override fun visit(typecast: TypecastExpression) {
if(typecast.type in IterableDatatypes)
errors.err("cannot type cast to string or array type", typecast.position)
if(!typecast.expression.inferType(program).isKnown)
errors.err("this expression doesn't return a value", typecast.expression.position)
super.visit(typecast)
}