azalea/kotlin-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added lowering of property callable reference for provideDelegate.

Browse Source 
PropertyDelegationLowering is now lowering all callable references to properties.
This commit is contained in:
Igor Chevdar
2017-03-03 16:46:36 +03:00
parent 2d3879ea0d
commit 7d433be68b
1 changed files with 24 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files
backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DelegationLowering.kt
+24 -37
View File
@@ -46,7 +46,7 @@ internal class PropertyDelegationLowering(val context: Context) : FileLoweringPa
}
override fun lower(irFile: IrFile) {
val kProperties = mutableListOf<IrExpression>()
val kProperties = mutableMapOf<VariableDescriptorWithAccessors, Pair<IrExpression, Int>>()
val getter = genericArrayType.unsubstitutedMemberScope.getContributedFunctions(Name.identifier("get"), NoLookupLocation.FROM_BACKEND).single()
val typeParameterT = genericArrayType.declaredTypeParameters[0]
@@ -63,62 +63,49 @@ internal class PropertyDelegationLowering(val context: Context) : FileLoweringPa
override fun visitLocalDelegatedProperty(declaration: IrLocalDelegatedProperty): IrStatement {
declaration.transformChildrenVoid(this)
val name = declaration.descriptor.name.asString()
val type = declaration.descriptor.type
val initializer = declaration.delegate.initializer!!
return IrVariableImpl(declaration.startOffset, declaration.endOffset,
declaration.origin, declaration.delegate.descriptor,
IrBlockImpl(initializer.startOffset, initializer.endOffset, initializer.type, null,
listOf(
transformBridgeToDelegate(name, type, declaration.getter),
transformBridgeToDelegate(name, type, declaration.setter),
declaration.getter,
declaration.setter,
initializer
).filterNotNull())
)
}
override fun visitProperty(declaration: IrProperty): IrStatement {
declaration.transformChildrenVoid(this)
if (declaration.isDelegated) {
val name = declaration.descriptor.name.asString()
val type = declaration.descriptor.returnType!!
declaration.getter = transformBridgeToDelegate(name, type, declaration.getter)
declaration.setter = transformBridgeToDelegate(name, type, declaration.setter)
}
return declaration
}
private fun transformBridgeToDelegate(name: String, type: KotlinType, irFunction: IrFunction?): IrFunction? {
irFunction?.transformChildrenVoid(object : IrElementTransformerVoid() {
override fun visitCallableReference(expression: IrCallableReference): IrExpression {
val fieldInitializer = IrCallImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET,
getKPropertyImplConstructorDescriptorWithProjection(type)).apply {
putValueArgument(0, IrConstImpl<String>(UNDEFINED_OFFSET, UNDEFINED_OFFSET,
context.builtIns.stringType, IrConstKind.String, name))
}
val index = kProperties.size
kProperties.add(fieldInitializer)
return IrCallImpl(expression.startOffset, expression.endOffset, substitutedGetter).apply {
dispatchReceiver = IrGetFieldImpl(expression.startOffset, expression.endOffset, kPropertiesField)
putValueArgument(0, IrConstImpl.int(startOffset, endOffset, context.builtIns.intType, index))
}
override fun visitCallableReference(expression: IrCallableReference): IrExpression {
expression.transformChildrenVoid(this)
val propertyDescriptor = expression.descriptor as? VariableDescriptorWithAccessors
if (propertyDescriptor == null) return expression
val field = kProperties.getOrPut(propertyDescriptor) {
val initializer = IrCallImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET,
getKPropertyImplConstructorDescriptorWithProjection(propertyDescriptor.type)).apply {
putValueArgument(0, IrConstImpl<String>(UNDEFINED_OFFSET, UNDEFINED_OFFSET,
context.builtIns.stringType, IrConstKind.String, propertyDescriptor.name.asString()))
}
})
return irFunction
}
val index = kProperties.size
initializer to index
}
return IrCallImpl(expression.startOffset, expression.endOffset, substitutedGetter).apply {
dispatchReceiver = IrGetFieldImpl(expression.startOffset, expression.endOffset, kPropertiesField)
putValueArgument(0, IrConstImpl.int(startOffset, endOffset, context.builtIns.intType, field.second))
}
}
})
if (kProperties.size > 0) {
if (kProperties.isNotEmpty()) {
val initializers = kProperties.values.sortedBy { it.second }.map { it.first }
irFile.declarations.add(0, IrFieldImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET,
DECLARATION_ORIGIN_KPROPERTIES_FOR_DELEGATION,
kPropertiesField,
IrExpressionBodyImpl(UNDEFINED_OFFSET, UNDEFINED_OFFSET,
context.createArrayOfExpression(kPropertyImplType, kProperties))))
context.createArrayOfExpression(kPropertyImplType, initializers))))
}
}