| /* |
| * Copyright 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.compose.compiler.plugins.kotlin |
| |
| import androidx.compose.compiler.plugins.kotlin.ComposeErrors.COMPOSABLE_PROPERTY_BACKING_FIELD |
| import androidx.compose.compiler.plugins.kotlin.ComposeErrors.COMPOSABLE_SUSPEND_FUN |
| import androidx.compose.compiler.plugins.kotlin.ComposeErrors.COMPOSABLE_VAR |
| import org.jetbrains.kotlin.container.StorageComponentContainer |
| import org.jetbrains.kotlin.container.useInstance |
| import org.jetbrains.kotlin.descriptors.DeclarationDescriptor |
| import org.jetbrains.kotlin.descriptors.FunctionDescriptor |
| import org.jetbrains.kotlin.descriptors.ModuleDescriptor |
| import org.jetbrains.kotlin.descriptors.PropertyDescriptor |
| import org.jetbrains.kotlin.extensions.StorageComponentContainerContributor |
| import org.jetbrains.kotlin.platform.TargetPlatform |
| import org.jetbrains.kotlin.platform.jvm.isJvm |
| import org.jetbrains.kotlin.psi.KtDeclaration |
| import org.jetbrains.kotlin.psi.KtFunction |
| import org.jetbrains.kotlin.psi.KtProperty |
| import org.jetbrains.kotlin.resolve.checkers.DeclarationChecker |
| import org.jetbrains.kotlin.resolve.checkers.DeclarationCheckerContext |
| |
| class ComposableDeclarationChecker : DeclarationChecker, StorageComponentContainerContributor { |
| override fun registerModuleComponents( |
| container: StorageComponentContainer, |
| platform: TargetPlatform, |
| moduleDescriptor: ModuleDescriptor |
| ) { |
| if (!platform.isJvm()) return |
| container.useInstance(this) |
| } |
| |
| override fun check( |
| declaration: KtDeclaration, |
| descriptor: DeclarationDescriptor, |
| context: DeclarationCheckerContext |
| ) { |
| if (!descriptor.hasComposableAnnotation()) return |
| when (declaration) { |
| is KtProperty -> checkProperty(declaration, descriptor as PropertyDescriptor, context) |
| is KtFunction -> checkFunction(declaration, descriptor as FunctionDescriptor, context) |
| } |
| } |
| |
| private fun checkFunction( |
| declaration: KtFunction, |
| descriptor: FunctionDescriptor, |
| context: DeclarationCheckerContext |
| ) { |
| if (descriptor.isSuspend) { |
| context.trace.report( |
| COMPOSABLE_SUSPEND_FUN.on(declaration.nameIdentifier ?: declaration) |
| ) |
| } |
| } |
| |
| private fun checkProperty( |
| declaration: KtProperty, |
| descriptor: PropertyDescriptor, |
| context: DeclarationCheckerContext |
| ) { |
| val initializer = declaration.initializer |
| val name = declaration.nameIdentifier |
| if (initializer != null && name != null) { |
| context.trace.report(COMPOSABLE_PROPERTY_BACKING_FIELD.on(name)) |
| } |
| if (descriptor.isVar && name != null) { |
| context.trace.report(COMPOSABLE_VAR.on(name)) |
| } |
| } |
| } |