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fix compiler crash: if uwordvar > label

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This commit is contained in:
Irmen de Jong 2022-11-26 14:39:03 +01:00
parent 0d0ce6eec1
commit d8409a9d2b
2 changed files with 11 additions and 4 deletions
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11
compiler/src/prog8/compiler/astprocessing/AstChecker.kt
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@ -509,7 +509,7 @@ internal class AstChecker(private val program: Program,
val sourceDatatype = assignment.value.inferType(program)
if (sourceDatatype.isUnknown) {
if (assignment.value !is FunctionCallExpression)
errors.err("assignment value is invalid or has no proper datatype, maybe forgot '&' (address-of)", assignment.value.position)
errors.err("invalid assignment value, maybe forgot '&' (address-of)", assignment.value.position)
} else {
checkAssignmentCompatible(targetDatatype.getOr(DataType.UNDEFINED),
sourceDatatype.getOr(DataType.UNDEFINED), assignment.value)
@ -843,8 +843,15 @@ internal class AstChecker(private val program: Program,
val leftIDt = expr.left.inferType(program)
val rightIDt = expr.right.inferType(program)
if(!leftIDt.isKnown || !rightIDt.isKnown)
if(!leftIDt.isKnown || !rightIDt.isKnown) {
// check if maybe one of the operands is a label, this would need a '&'
if (!leftIDt.isKnown && expr.left !is FunctionCallExpression)
errors.err("invalid operand, maybe forgot '&' (address-of)", expr.left.position)
if (!rightIDt.isKnown && expr.right !is FunctionCallExpression)
errors.err("invalid operand, maybe forgot '&' (address-of)", expr.right.position)
return // hopefully this error will be detected elsewhere
}
val leftDt = leftIDt.getOr(DataType.UNDEFINED)
val rightDt = rightIDt.getOr(DataType.UNDEFINED)

4
compiler/test/TestAstChecks.kt
View File

@ -52,8 +52,8 @@ class TestAstChecks: FunSpec({
compileText(C64Target(), true, text, writeAssembly = true, errors=errors) shouldBe null
errors.errors.size shouldBe 2
errors.warnings.size shouldBe 0
errors.errors[0] shouldContain ":7:28: assignment value is invalid"
errors.errors[1] shouldContain ":8:28: assignment value is invalid"
errors.errors[0] shouldContain ":7:28: invalid assignment value, maybe forgot '&'"
errors.errors[1] shouldContain ":8:28: invalid assignment value, maybe forgot '&'"
}
test("can't do str or array expression without using address-of") {