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language: introduce the requirement to use return to return a value from a function

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This commit is contained in:
Alex Zenla
2023-11-21 04:28:46 -08:00
parent 5540918e7c
commit 0a2d029c5c
27 changed files with 115 additions and 19 deletions
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6
compiler/src/main/kotlin/gay/pizza/pork/compiler/StubOpEmitter.kt
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@ -30,6 +30,7 @@ class StubOpEmitter(val compiler: Compiler, val symbol: CompilableSymbol) : Func
fun exit() {
code.localState.popScope()
code.emit(Opcode.None)
code.emit(Opcode.Return)
}
@ -211,6 +212,11 @@ class StubOpEmitter(val compiler: Compiler, val symbol: CompilableSymbol) : Func
}
}
override fun visitReturn(node: Return) {
node.value.visit(this)
code.emit(Opcode.Return)
}
override fun visitSetAssignment(node: SetAssignment) {
val stubVarOrCall = code.localState.resolve(node.symbol)
if (stubVarOrCall.stubVar == null) {