Kotlin 2.4.0: Fix value argument indexing in compat layer

In 2.4.0, IrMemberAccessExpression.arguments includes all parameters
(dispatch receiver, extension receiver, and regular value args). The
old getValueArgument/putValueArgument/valueArgumentsCount APIs indexed
only value arguments. Fix the compat layer to apply the correct offset
when translating between the old index-based API and the new unified
arguments list.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Anders Fugmann
2026-06-04 17:30:40 +02:00
parent e21bc4da05
commit 9723044342

View File

@@ -26,16 +26,23 @@ val IrFunction.codeQlValueParameters: List<IrValueParameter>
val IrFunction.codeQlExtensionReceiverParameter: IrValueParameter?
get() = parameters.firstOrNull { it.kind == org.jetbrains.kotlin.ir.declarations.IrParameterKind.ExtensionReceiver }
// Helper: get the offset of value arguments in the arguments list
// In 2.4.0, arguments[] includes dispatch/extension receivers before regular params
private fun IrMemberAccessExpression<*>.valueArgumentOffset(): Int {
val owner = symbol.owner as? IrFunction ?: return 0
return owner.parameters.count { it.kind != org.jetbrains.kotlin.ir.declarations.IrParameterKind.Regular }
}
// IrMemberAccessExpression: valueArgumentsCount
val IrMemberAccessExpression<*>.codeQlValueArgumentsCount: Int
get() = arguments.size
get() = arguments.size - valueArgumentOffset()
// IrMemberAccessExpression: getValueArgument
fun IrMemberAccessExpression<*>.codeQlGetValueArgument(index: Int): IrExpression? = arguments[index]
fun IrMemberAccessExpression<*>.codeQlGetValueArgument(index: Int): IrExpression? = arguments[index + valueArgumentOffset()]
// IrMemberAccessExpression: putValueArgument
fun IrMemberAccessExpression<*>.codeQlPutValueArgument(index: Int, value: IrExpression?) {
arguments[index] = value
arguments[index + valueArgumentOffset()] = value
}
// IrMemberAccessExpression: extensionReceiver