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[JS IR BE] lateinit support

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* Functions with IrExpressionBody are lowered to IrBlockBody
* Implemented throwUninitializedPropertyAccessException function
This commit is contained in:
Anton Bannykh
2018-09-20 18:09:26 +03:00
parent beaf6df8c5
commit 8e347f9f39
21 changed files with 25 additions and 34 deletions
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compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/LateinitLowering.kt
+5 -4
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@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
import org.jetbrains.kotlin.ir.builders.*
import org.jetbrains.kotlin.ir.declarations.*
import org.jetbrains.kotlin.ir.expressions.IrBlock
import org.jetbrains.kotlin.ir.expressions.impl.IrBlockBodyImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrBlockImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrExpressionBodyImpl
@@ -50,19 +51,19 @@ class LateinitLowering(
val endOffset = getter.endOffset
val irBuilder = context.createIrBuilder(getter.symbol, startOffset, endOffset)
irBuilder.run {
val block = irBlock(type)
val body = IrBlockBodyImpl(startOffset, endOffset)
val resultVar = scope.createTemporaryVariable(
irGetField(getter.dispatchReceiverParameter?.let { irGet(it) }, backingField)
)
block.statements.add(resultVar)
body.statements.add(resultVar)
val throwIfNull = irIfThenElse(
context.irBuiltIns.nothingType,
irNotEquals(irGet(resultVar), irNull()),
irReturn(irGet(resultVar)),
throwUninitializedPropertyAccessException(backingField)
)
block.statements.add(throwIfNull)
getter.body = IrExpressionBodyImpl(startOffset, endOffset, block)
body.statements.add(throwIfNull)
getter.body = body
}
}
})