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[JS SCRIPT] Fix script lowering

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This commit is contained in:
Roman Artemev
2020-05-14 13:20:05 +03:00
committed by romanart
parent e573efb3a5
commit 996137576e
1 changed files with 9 additions and 1 deletions
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compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/ScriptRemoveReceiverLowering.kt
+9 -1
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@@ -7,16 +7,17 @@ package org.jetbrains.kotlin.ir.backend.js.lower
import org.jetbrains.kotlin.backend.common.CommonBackendContext
import org.jetbrains.kotlin.backend.common.FileLoweringPass
import org.jetbrains.kotlin.backend.common.phaser.makeIrModulePhase
import org.jetbrains.kotlin.descriptors.ScriptDescriptor
import org.jetbrains.kotlin.ir.declarations.*
import org.jetbrains.kotlin.ir.expressions.*
import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrFunctionReferenceImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrPropertyReferenceImpl
import org.jetbrains.kotlin.ir.symbols.IrClassSymbol
import org.jetbrains.kotlin.ir.types.IrSimpleType
import org.jetbrains.kotlin.ir.types.IrTypeProjection
import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
import org.jetbrains.kotlin.ir.types.makeNullable
import org.jetbrains.kotlin.ir.util.transformFlat
import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
@@ -33,6 +34,8 @@ class ScriptRemoveReceiverLowering(val context: CommonBackendContext) : FileLowe
}
}
private fun IrExpression.nullConst() = IrConstImpl.constNull(startOffset, endOffset, type.makeNullable())
fun lower(script: IrScript): List<IrScript> {
val transformer: IrElementTransformerVoid = object : IrElementTransformerVoid() {
override fun visitCall(expression: IrCall): IrExpression {
@@ -42,6 +45,11 @@ class ScriptRemoveReceiverLowering(val context: CommonBackendContext) : FileLowe
return super.visitCall(expression)
}
override fun visitGetValue(expression: IrGetValue): IrExpression {
return if (expression.symbol === script.thisReceiver.symbol) expression.nullConst()
else expression
}
override fun visitFieldAccess(expression: IrFieldAccessExpression): IrExpression {
if (expression.symbol.owner.parent is IrScript) {
expression.receiver = null