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Prepare default arguments IR lowering for inline classes support

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Allow `nullConst` to be customized by backend
This commit is contained in:
Svyatoslav Scherbina
2018-08-01 11:12:19 +03:00
parent d57099088e
commit 1aac1c2d69
1 changed files with 17 additions and 14 deletions
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compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/DefaultArgumentStubGenerator.kt
+17 -14
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@@ -174,19 +174,10 @@ private fun maskParameter(function: IrFunction, number: Int) =
private fun markerParameterDescriptor(descriptor: FunctionDescriptor) =
descriptor.valueParameters.single { it.name == kConstructorMarkerName }
private fun nullConst(expression: IrElement, type: IrType, context: CommonBackendContext) = when {
type.isFloat() -> IrConstImpl.float(expression.startOffset, expression.endOffset, type, 0.0F)
type.isDouble() -> IrConstImpl.double(expression.startOffset, expression.endOffset, type, 0.0)
type.isBoolean() -> IrConstImpl.boolean(expression.startOffset, expression.endOffset, type, false)
type.isByte() -> IrConstImpl.byte(expression.startOffset, expression.endOffset, type, 0)
type.isChar() -> IrConstImpl.char(expression.startOffset, expression.endOffset, type, 0.toChar())
type.isShort() -> IrConstImpl.short(expression.startOffset, expression.endOffset, type, 0)
type.isInt() -> IrConstImpl.int(expression.startOffset, expression.endOffset, type, 0)
type.isLong() -> IrConstImpl.long(expression.startOffset, expression.endOffset, type, 0)
else -> IrConstImpl.constNull(expression.startOffset, expression.endOffset, context.irBuiltIns.nothingNType)
}
class DefaultParameterInjector constructor(val context: CommonBackendContext, private val skipInline: Boolean = true) : BodyLoweringPass {
open class DefaultParameterInjector constructor(
val context: CommonBackendContext,
private val skipInline: Boolean = true
) : BodyLoweringPass {
override fun lower(irBody: IrBody) {
irBody.transformChildrenVoid(object : IrElementTransformerVoid() {
@@ -290,7 +281,7 @@ class DefaultParameterInjector constructor(val context: CommonBackendContext, pr
val defaultValueArgument = if (valueParameterDescriptor.isVararg) {
null
} else {
nullConst(expression, realFunction.valueParameters[i].type, context)
nullConst(expression, realFunction.valueParameters[i].type)
}
valueParameterDescriptor to (valueArgument ?: defaultValueArgument)
})
@@ -325,6 +316,18 @@ class DefaultParameterInjector constructor(val context: CommonBackendContext, pr
})
}
protected open fun nullConst(expression: IrElement, type: IrType) = when {
type.isFloat() -> IrConstImpl.float(expression.startOffset, expression.endOffset, type, 0.0F)
type.isDouble() -> IrConstImpl.double(expression.startOffset, expression.endOffset, type, 0.0)
type.isBoolean() -> IrConstImpl.boolean(expression.startOffset, expression.endOffset, type, false)
type.isByte() -> IrConstImpl.byte(expression.startOffset, expression.endOffset, type, 0)
type.isChar() -> IrConstImpl.char(expression.startOffset, expression.endOffset, type, 0.toChar())
type.isShort() -> IrConstImpl.short(expression.startOffset, expression.endOffset, type, 0)
type.isInt() -> IrConstImpl.int(expression.startOffset, expression.endOffset, type, 0)
type.isLong() -> IrConstImpl.long(expression.startOffset, expression.endOffset, type, 0)
else -> IrConstImpl.constNull(expression.startOffset, expression.endOffset, context.irBuiltIns.nothingNType)
}
private fun log(msg: () -> String) = context.log { "DEFAULT-INJECTOR: ${msg()}" }
}