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org.jetbrains.kotlin.backend.wasm.WasmLoweringPhases.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.backend.wasm
import org.jetbrains.kotlin.backend.common.ClassLoweringPass
import org.jetbrains.kotlin.backend.common.FileLoweringPass
import org.jetbrains.kotlin.backend.common.lower
import org.jetbrains.kotlin.backend.common.lower.*
import org.jetbrains.kotlin.backend.common.lower.inline.FunctionInlining
import org.jetbrains.kotlin.backend.common.phaser.*
import org.jetbrains.kotlin.backend.common.runOnFilePostfix
import org.jetbrains.kotlin.backend.wasm.lower.BuiltInsLowering
import org.jetbrains.kotlin.backend.wasm.lower.WasmBlockDecomposerLowering
import org.jetbrains.kotlin.backend.wasm.lower.excludeDeclarationsFromCodegen
import org.jetbrains.kotlin.ir.backend.js.lower.*
import org.jetbrains.kotlin.ir.backend.js.lower.inline.RemoveInlineFunctionsWithReifiedTypeParametersLowering
import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
import org.jetbrains.kotlin.ir.util.patchDeclarationParents
private fun ClassLoweringPass.runOnFilesPostfix(moduleFragment: IrModuleFragment) = moduleFragment.files.forEach { runOnFilePostfix(it) }
private fun makeWasmModulePhase(
lowering: (WasmBackendContext) -> FileLoweringPass,
name: String,
description: String,
prerequisite: Set> = emptySet()
): NamedCompilerPhase =
makeIrModulePhase(
lowering, name, description, prerequisite, actions = setOf(validationAction, defaultDumper)
)
private fun makeCustomWasmModulePhase(
op: (WasmBackendContext, IrModuleFragment) -> Unit,
description: String,
name: String,
prerequisite: Set> = emptySet()
): NamedCompilerPhase =
makeCustomPhase(
op, name, description, prerequisite, actions = setOf(defaultDumper, validationAction), nlevels = 0,
)
private val validateIrBeforeLowering = makeCustomWasmModulePhase(
{ context, module -> validationCallback(context, module) },
name = "ValidateIrBeforeLowering",
description = "Validate IR before lowering"
)
private val validateIrAfterLowering = makeCustomWasmModulePhase(
{ context, module -> validationCallback(context, module) },
name = "ValidateIrAfterLowering",
description = "Validate IR after lowering"
)
private val expectDeclarationsRemovingPhase = makeWasmModulePhase(
::ExpectDeclarationsRemoveLowering,
name = "ExpectDeclarationsRemoving",
description = "Remove expect declaration from module fragment"
)
private val lateinitNullableFieldsPhase = makeWasmModulePhase(
::NullableFieldsForLateinitCreationLowering,
name = "LateinitNullableFields",
description = "Create nullable fields for lateinit properties"
)
private val lateinitDeclarationLoweringPhase = makeWasmModulePhase(
::NullableFieldsDeclarationLowering,
name = "LateinitDeclarations",
description = "Reference nullable fields from properties and getters + insert checks"
)
private val lateinitUsageLoweringPhase = makeWasmModulePhase(
::LateinitUsageLowering,
name = "LateinitUsage",
description = "Insert checks for lateinit field references"
)
// TODO make all lambda-related stuff work with IrFunctionExpression and drop this phase
private val provisionalFunctionExpressionPhase = makeWasmModulePhase(
{ ProvisionalFunctionExpressionLowering() },
name = "FunctionExpression",
description = "Transform IrFunctionExpression to a local function reference"
)
private val arrayConstructorPhase = makeWasmModulePhase(
::ArrayConstructorLowering,
name = "ArrayConstructor",
description = "Transform `Array(size) { index -> value }` into a loop"
)
private val functionInliningPhase = makeCustomWasmModulePhase(
{ context, module ->
FunctionInlining(context).inline(module)
module.patchDeclarationParents()
},
name = "FunctionInliningPhase",
description = "Perform function inlining",
prerequisite = setOf(expectDeclarationsRemovingPhase)
)
private val removeInlineFunctionsWithReifiedTypeParametersLoweringPhase = makeWasmModulePhase(
{ RemoveInlineFunctionsWithReifiedTypeParametersLowering() },
name = "RemoveInlineFunctionsWithReifiedTypeParametersLowering",
description = "Remove Inline functions with reified parameters from context",
prerequisite = setOf(functionInliningPhase)
)
private val tailrecLoweringPhase = makeWasmModulePhase(
::TailrecLowering,
name = "TailrecLowering",
description = "Replace `tailrec` callsites with equivalent loop"
)
private val enumClassConstructorLoweringPhase = makeWasmModulePhase(
::EnumClassConstructorLowering,
name = "EnumClassConstructorLowering",
description = "Transform Enum Class into regular Class"
)
private val sharedVariablesLoweringPhase = makeWasmModulePhase(
::SharedVariablesLowering,
name = "SharedVariablesLowering",
description = "Box captured mutable variables"
)
private val localDelegatedPropertiesLoweringPhase = makeWasmModulePhase(
{ LocalDelegatedPropertiesLowering() },
name = "LocalDelegatedPropertiesLowering",
description = "Transform Local Delegated properties"
)
private val localDeclarationsLoweringPhase = makeWasmModulePhase(
::LocalDeclarationsLowering,
name = "LocalDeclarationsLowering",
description = "Move local declarations into nearest declaration container",
prerequisite = setOf(sharedVariablesLoweringPhase, localDelegatedPropertiesLoweringPhase)
)
private val localClassExtractionPhase = makeWasmModulePhase(
::LocalClassPopupLowering,
name = "LocalClassExtractionPhase",
description = "Move local declarations into nearest declaration container",
prerequisite = setOf(localDeclarationsLoweringPhase)
)
private val innerClassesLoweringPhase = makeWasmModulePhase(
{ context -> InnerClassesLowering(context, context.innerClassesSupport) },
name = "InnerClassesLowering",
description = "Capture outer this reference to inner class"
)
private val innerClassesMemberBodyLoweringPhase = makeWasmModulePhase(
{ context -> InnerClassesMemberBodyLowering(context, context.innerClassesSupport) },
name = "InnerClassesMemberBody",
description = "Replace `this` with 'outer this' field references",
prerequisite = setOf(innerClassesLoweringPhase)
)
private val innerClassConstructorCallsLoweringPhase = makeWasmModulePhase(
{ context -> InnerClassConstructorCallsLowering(context, context.innerClassesSupport) },
name = "InnerClassConstructorCallsLowering",
description = "Replace inner class constructor invocation"
)
private val defaultArgumentStubGeneratorPhase = makeWasmModulePhase(
::DefaultArgumentStubGenerator,
name = "DefaultArgumentStubGenerator",
description = "Generate synthetic stubs for functions with default parameter values"
)
private val defaultArgumentPatchOverridesPhase = makeWasmModulePhase(
::DefaultParameterPatchOverridenSymbolsLowering,
name = "DefaultArgumentsPatchOverrides",
description = "Patch overrides for fake override dispatch functions",
prerequisite = setOf(defaultArgumentStubGeneratorPhase)
)
private val defaultParameterInjectorPhase = makeWasmModulePhase(
{ context -> DefaultParameterInjector(context, skipExternalMethods = true) },
name = "DefaultParameterInjector",
description = "Replace callsite with default parameters with corresponding stub function",
prerequisite = setOf(innerClassesLoweringPhase)
)
private val defaultParameterCleanerPhase = makeWasmModulePhase(
::DefaultParameterCleaner,
name = "DefaultParameterCleaner",
description = "Clean default parameters up"
)
//private val jsDefaultCallbackGeneratorPhase = makeJsModulePhase(
// ::JsDefaultCallbackGenerator,
// name = "JsDefaultCallbackGenerator",
// description = "Build binding for super calls with default parameters"
//)
//private val varargLoweringPhase = makeJsModulePhase(
// ::VarargLowering,
// name = "VarargLowering",
// description = "Lower vararg arguments"
//)
private val propertiesLoweringPhase = makeWasmModulePhase(
{ PropertiesLowering() },
name = "PropertiesLowering",
description = "Move fields and accessors out from its property"
)
private val primaryConstructorLoweringPhase = makeWasmModulePhase(
::PrimaryConstructorLowering,
name = "PrimaryConstructorLowering",
description = "Creates primary constructor if it doesn't exist"
)
private val delegateToPrimaryConstructorLoweringPhase = makeWasmModulePhase(
::DelegateToSyntheticPrimaryConstructor,
name = "DelegateToSyntheticPrimaryConstructor",
description = "Delegates to synthetic primary constructor",
prerequisite = setOf(primaryConstructorLoweringPhase)
)
private val initializersLoweringPhase = makeWasmModulePhase(
::InitializersLowering,
name = "InitializersLowering",
description = "Merge init block and field initializers into [primary] constructor",
prerequisite = setOf(primaryConstructorLoweringPhase)
)
private val initializersCleanupLoweringPhase = makeWasmModulePhase(
::InitializersCleanupLowering,
name = "InitializersCleanupLowering",
description = "Remove non-static anonymous initializers and field init expressions",
prerequisite = setOf(initializersLoweringPhase)
)
private val excludeDeclarationsFromCodegenPhase = makeCustomWasmModulePhase(
{ context, module ->
excludeDeclarationsFromCodegen(context, module)
},
name = "ExcludeDeclarationsFromCodegen",
description = "Move excluded declarations to separate place"
)
private val returnableBlockLoweringPhase = makeWasmModulePhase(
::ReturnableBlockLowering,
name = "ReturnableBlockLowering",
description = "Replace returnable block with do-while loop",
prerequisite = setOf(functionInliningPhase)
)
private val bridgesConstructionPhase = makeWasmModulePhase(
::BridgesConstruction,
name = "BridgesConstruction",
description = "Generate bridges"
)
private val inlineClassDeclarationLoweringPhase = makeWasmModulePhase(
{ InlineClassLowering(it).inlineClassDeclarationLowering },
name = "InlineClassDeclarationLowering",
description = "Handle inline class declarations"
)
private val inlineClassUsageLoweringPhase = makeWasmModulePhase(
{ InlineClassLowering(it).inlineClassUsageLowering },
name = "InlineClassUsageLowering",
description = "Handle inline class usages"
)
//private val autoboxingTransformerPhase = makeJsModulePhase(
// ::AutoboxingTransformer,
// name = "AutoboxingTransformer",
// description = "Insert box/unbox intrinsics"
//)
private val blockDecomposerLoweringPhase = makeCustomWasmModulePhase(
{ context, module ->
WasmBlockDecomposerLowering(context).lower(module)
module.patchDeclarationParents()
},
name = "BlockDecomposerLowering",
description = "Transform statement-like-expression nodes into pure-statement to make it easily transform into JS"
)
//private val classReferenceLoweringPhase = makeJsModulePhase(
// ::ClassReferenceLowering,
// name = "ClassReferenceLowering",
// description = "Handle class references"
//)
//
//private val primitiveCompanionLoweringPhase = makeJsModulePhase(
// ::PrimitiveCompanionLowering,
// name = "PrimitiveCompanionLowering",
// description = "Replace common companion object access with platform one"
//)
//
//private val constLoweringPhase = makeJsModulePhase(
// ::ConstLowering,
// name = "ConstLowering",
// description = "Wrap Long and Char constants into constructor invocation"
//)
//
//private val callsLoweringPhase = makeJsModulePhase(
// ::CallsLowering,
// name = "CallsLowering",
// description = "Handle intrinsics"
//)
//
//private val testGenerationPhase = makeJsModulePhase(
// ::TestGenerator,
// name = "TestGenerationLowering",
// description = "Generate invocations to kotlin.test suite and test functions"
//)
//
private val staticMembersLoweringPhase = makeWasmModulePhase(
::StaticMembersLowering,
name = "StaticMembersLowering",
description = "Move static member declarations to top-level"
)
private val builtInsLoweringPhase = makeWasmModulePhase(
::BuiltInsLowering,
name = "BuiltInsLowering",
description = "Lower IR buildins"
)
private val objectDeclarationLoweringPhase = makeWasmModulePhase(
::ObjectUsageLowering,
name = "ObjectDeclarationLowering",
description = "Create lazy object instance generator functions"
)
private val objectUsageLoweringPhase = makeWasmModulePhase(
::ObjectUsageLowering,
name = "ObjectUsageLowering",
description = "Transform IrGetObjectValue into instance generator call"
)
val wasmPhases = NamedCompilerPhase(
name = "IrModuleLowering",
description = "IR module lowering",
lower = validateIrBeforeLowering then
excludeDeclarationsFromCodegenPhase then
expectDeclarationsRemovingPhase then
provisionalFunctionExpressionPhase then
// TODO: Need some helpers from stdlib
// arrayConstructorPhase then
functionInliningPhase then
lateinitNullableFieldsPhase then
lateinitDeclarationLoweringPhase then
lateinitUsageLoweringPhase then
tailrecLoweringPhase then
enumClassConstructorLoweringPhase then
sharedVariablesLoweringPhase then
localDelegatedPropertiesLoweringPhase then
localDeclarationsLoweringPhase then
localClassExtractionPhase then
innerClassesLoweringPhase then
innerClassesMemberBodyLoweringPhase then
innerClassConstructorCallsLoweringPhase then
propertiesLoweringPhase then
primaryConstructorLoweringPhase then
delegateToPrimaryConstructorLoweringPhase then
initializersLoweringPhase then
initializersCleanupLoweringPhase then
// Common prefix ends
builtInsLoweringPhase then
// TODO: Commonize enumEntryToGetInstanceFunction
// Commonize array literal creation
// Extract external enum lowering to JS part
//
// enumClassLoweringPhase then
// enumUsageLoweringPhase then
// TODO: Requires stdlib
// suspendFunctionsLoweringPhase then
returnableBlockLoweringPhase then
// TODO: Callable reference lowering is too JS specific.
// Should we reuse JVM or Native lowering?
// callableReferenceLoweringPhase then
defaultArgumentStubGeneratorPhase then
defaultArgumentPatchOverridesPhase then
defaultParameterInjectorPhase then
defaultParameterCleanerPhase then
// TODO: Investigate
// jsDefaultCallbackGeneratorPhase then
removeInlineFunctionsWithReifiedTypeParametersLoweringPhase then
// TODO: Varargs are too platform-specific. Reimplement.
// varargLoweringPhase then
// TODO: Investigate exception proposal
// multipleCatchesLoweringPhase then
bridgesConstructionPhase then
// TODO: Reimplement
// typeOperatorLoweringPhase then
// TODO: Reimplement
// secondaryConstructorLoweringPhase then
// secondaryFactoryInjectorLoweringPhase then
// TODO: Reimplement
// classReferenceLoweringPhase then
inlineClassDeclarationLoweringPhase then
inlineClassUsageLoweringPhase then
// TODO: Commonize box/unbox intrinsics
// autoboxingTransformerPhase then
blockDecomposerLoweringPhase then
// TODO: Reimplement
// constLoweringPhase then
objectDeclarationLoweringPhase then
objectUsageLoweringPhase then
staticMembersLoweringPhase then
validateIrAfterLowering
)
