Denis Zharkov
bf1f94c185
It may be useful because data-flow info is mostly the same for neighbouring expressions and changes between them should be minor. Thus, it should help to avoid making copies of huge maps and reusing them instead
75 lines
3.3 KiB
Kotlin
75 lines
3.3 KiB
Kotlin
/*
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* Copyright 2010-2015 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jetbrains.kotlin
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import org.jetbrains.kotlin.idea.test.PluginTestCaseBase
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import org.jetbrains.kotlin.psi.KtFile
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import org.jetbrains.kotlin.psi.KtExpression
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import org.jetbrains.kotlin.test.KotlinTestUtils
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import com.intellij.openapi.util.io.FileUtil
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import java.io.File
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import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightFixtureTestCase
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import com.intellij.testFramework.LightProjectDescriptor
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import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase
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import org.jetbrains.kotlin.descriptors.PackageViewDescriptor
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import org.jetbrains.kotlin.resolve.bindingContextUtil.getDataFlowInfoAfter
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import org.jetbrains.kotlin.idea.caches.resolve.analyze
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import org.jetbrains.kotlin.psi.psiUtil.getStrictParentOfType
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import org.jetbrains.kotlin.resolve.calls.smartcasts.DataFlowValue
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import org.jetbrains.kotlin.resolve.calls.smartcasts.IdentifierInfo
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import org.jetbrains.kotlin.resolve.scopes.receivers.ImplicitReceiver
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abstract class AbstractDataFlowValueRenderingTest: KotlinLightCodeInsightFixtureTestCase() {
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private fun IdentifierInfo.render(): String? = when (this) {
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is IdentifierInfo.Expression -> expression.text
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is IdentifierInfo.Receiver -> (value as? ImplicitReceiver)?.declarationDescriptor?.name?.let { "this@$it" }
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is IdentifierInfo.Variable -> variable.name.asString()
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is IdentifierInfo.PackageOrClass -> (descriptor as? PackageViewDescriptor)?.let { it.fqName.asString() }
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is IdentifierInfo.Qualified -> receiverInfo.render() + "." + selectorInfo.render()
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else -> null
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}
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private fun DataFlowValue.render() =
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// If it is not a stable identifier, there's no point in rendering it
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if (!isStable) null
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else identifierInfo.render()
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override fun getTestDataPath() : String {
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return PluginTestCaseBase.getTestDataPathBase() + "/dataFlowValueRendering/"
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}
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override fun getProjectDescriptor(): LightProjectDescriptor {
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return LightCodeInsightFixtureTestCase.JAVA_LATEST
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}
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fun doTest(fileName: String) {
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val fixture = myFixture
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fixture.configureByFile(fileName)
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val jetFile = fixture.file as KtFile
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val element = jetFile.findElementAt(fixture.caretOffset)!!
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val expression = element.getStrictParentOfType<KtExpression>()!!
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val info = expression.analyze().getDataFlowInfoAfter(expression)
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val allValues = (info.completeTypeInfo.keySet() + info.completeNullabilityInfo.keySet()).toSet()
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val actual = allValues.mapNotNull { it.render() }.sorted().joinToString("\n")
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KotlinTestUtils.assertEqualsToFile(File(FileUtil.getNameWithoutExtension(fileName) + ".txt"), actual)
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}
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}
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