Refactoring: extract functions working with smap to separate file
This commit is contained in:
Nikolay Krasko
@@ -0,0 +1,129 @@
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/*
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* Copyright 2010-2016 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.idea.filters
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import com.intellij.openapi.compiler.CompilerPaths
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import com.intellij.openapi.project.Project
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import com.intellij.openapi.roots.ProjectFileIndex
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import com.intellij.openapi.vfs.VirtualFile
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import com.intellij.psi.search.GlobalSearchScope
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import org.jetbrains.kotlin.codegen.inline.FileMapping
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import org.jetbrains.kotlin.codegen.inline.InlineCodegenUtil
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import org.jetbrains.kotlin.codegen.inline.SMAP
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import org.jetbrains.kotlin.codegen.inline.SMAPParser
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import org.jetbrains.kotlin.idea.refactoring.getLineCount
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import org.jetbrains.kotlin.idea.refactoring.toPsiFile
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import org.jetbrains.kotlin.idea.util.DebuggerUtils
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import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
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import org.jetbrains.kotlin.load.kotlin.JvmVirtualFileFinder
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import org.jetbrains.kotlin.name.ClassId
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import org.jetbrains.kotlin.name.Name
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import org.jetbrains.kotlin.name.tail
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import org.jetbrains.kotlin.psi.KtFile
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import org.jetbrains.kotlin.resolve.jvm.JvmClassName
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import org.jetbrains.kotlin.utils.addToStdlib.check
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import org.jetbrains.org.objectweb.asm.ClassReader
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import org.jetbrains.org.objectweb.asm.ClassVisitor
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import java.io.File
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fun readClassFile(jvmName: JvmClassName, file: VirtualFile, lineNumber: Int, project: Project): ByteArray? {
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val fqNameWithInners = jvmName.fqNameForClassNameWithoutDollars.tail(jvmName.packageFqName)
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if (ProjectRootsUtil.isLibrarySourceFile(project, file)) {
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val classId = ClassId(jvmName.packageFqName, Name.identifier(fqNameWithInners.asString()))
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val fileFinder = JvmVirtualFileFinder.SERVICE.getInstance(project)
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val classFile = fileFinder.findVirtualFileWithHeader(classId) ?: return null
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return classFile.contentsToByteArray()
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}
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if (!ProjectRootsUtil.isProjectSourceFile(project, file)) return null
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val linesInFile = file.toPsiFile(project)?.getLineCount() ?: return null
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if (lineNumber <= linesInFile) return null
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val module = ProjectFileIndex.SERVICE.getInstance(project).getModuleForFile(file)
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val outputDir = CompilerPaths.getModuleOutputDirectory(module, /*forTests = */ false) ?: return null
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val className = fqNameWithInners.asString().replace('.', '$')
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val classByByDirectory = findClassFileByPath(jvmName.packageFqName.asString(), className, outputDir) ?: return null
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return classByByDirectory.readBytes()
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}
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private fun findClassFileByPath(packageName: String, className: String, outputDir: VirtualFile): File? {
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val outDirFile = File(outputDir.path).check { it.exists() } ?: return null
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val parentDirectory = File(outDirFile, packageName.replace(".", File.separator))
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if (!parentDirectory.exists()) return null
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val classFile = File(parentDirectory, className + ".class")
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if (classFile.exists()) {
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return classFile
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}
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return null
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}
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fun parseStrata(strata: String?, line: Int, project: Project, isKotlin2: Boolean, searchScope: GlobalSearchScope): Pair<KtFile, Int>? {
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if (strata == null) return null
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val mappings = SMAPParser.parse(strata)
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val mappingInfo = mappings.fileMappings.firstOrNull {
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it.getIntervalIfContains(line) != null
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} ?: return null
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val newJvmName = JvmClassName.byInternalName(mappingInfo.path)
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val newSourceFile = DebuggerUtils.findSourceFileForClassIncludeLibrarySources(project, searchScope, newJvmName, mappingInfo.name) ?: return null
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val interval = mappingInfo.getIntervalIfContains(line)!!
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return newSourceFile to (if (isKotlin2) interval.source else interval.mapDestToSource(line)) - 1
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}
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fun readDebugInfo(bytes: ByteArray): SmapData? {
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val cr = ClassReader(bytes)
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var debugInfo: String? = null
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cr.accept(object : ClassVisitor(InlineCodegenUtil.API) {
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override fun visitSource(source: String?, debug: String?) {
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debugInfo = debug
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}
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}, ClassReader.SKIP_FRAMES and ClassReader.SKIP_CODE)
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return debugInfo?.let { SmapData(it) }
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}
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class SmapData(debugInfo: String) {
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var kotlin1: String? = null
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private set
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var kotlin2: String? = null
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private set
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init {
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val intervals = debugInfo.split(SMAP.END).filter { it.isNotBlank() }
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when(intervals.count()) {
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1 -> {
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kotlin1 = intervals[0] + SMAP.END
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}
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else -> {
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kotlin1 = intervals[0] + SMAP.END
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kotlin2 = intervals[1] + SMAP.END
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}
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}
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}
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}
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private fun FileMapping.getIntervalIfContains(destLine: Int) = lineMappings.firstOrNull { it.contains(destLine) }
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@@ -78,43 +78,8 @@ class KotlinExceptionFilter(private val searchScope: GlobalSearchScope) : Filter
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}
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private fun getHyperlinkInfoIfInline(jvmName: JvmClassName, file: VirtualFile, lineNumber: Int, project: Project): InlineFunctionHyperLinkInfo? {
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val fqNameWithInners = jvmName.fqNameForClassNameWithoutDollars.tail(jvmName.packageFqName)
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if (ProjectRootsUtil.isLibrarySourceFile(project, file)) {
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val classId = ClassId(jvmName.packageFqName, Name.identifier(fqNameWithInners.asString()))
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val fileFinder = JvmVirtualFileFinder.SERVICE.getInstance(project)
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val classFile = fileFinder.findVirtualFileWithHeader(classId) ?: return null
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return readDebugInfoForInlineFun(classFile.contentsToByteArray(), lineNumber, project)
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}
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if (!ProjectRootsUtil.isProjectSourceFile(project, file)) return null
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val linesInFile = file.toPsiFile(project)?.getLineCount() ?: return null
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if (lineNumber <= linesInFile) return null
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val module = ProjectFileIndex.SERVICE.getInstance(project).getModuleForFile(file)
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val outputDir = CompilerPaths.getModuleOutputDirectory(module, /*forTests = */ false) ?: return null
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val className = fqNameWithInners.asString().replace('.', '$')
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val classByByDirectory = findClassFileByPath(jvmName.packageFqName.asString(), className, outputDir) ?: return null
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return readDebugInfoForInlineFun(classByByDirectory.readBytes(), lineNumber, project)
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}
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private fun findClassFileByPath(packageName: String, className: String, outputDir: VirtualFile): File? {
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val outDirFile = File(outputDir.path).check { it.exists() } ?: return null
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val parentDirectory = File(outDirFile, packageName.replace(".", File.separator))
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if (!parentDirectory.exists()) return null
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val classFile = File(parentDirectory, className + ".class")
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if (classFile.exists()) {
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return classFile
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}
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return null
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val bytes = readClassFile(jvmName, file, lineNumber, project) ?: return null
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return readDebugInfoForInlineFun(bytes, lineNumber, project)
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}
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private fun readDebugInfoForInlineFun(bytes: ByteArray, line: Int, project: Project): InlineFunctionHyperLinkInfo? {
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@@ -122,12 +87,12 @@ class KotlinExceptionFilter(private val searchScope: GlobalSearchScope) : Filter
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val inlineInfo = arrayListOf<InlineFunctionHyperLinkInfo.InlineInfo>()
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val (inlineFunctionBodyFile, inlineFunctionBodyLine) = parseStrata(smapData.kotlin1, line, project, false) ?: return null
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val (inlineFunctionBodyFile, inlineFunctionBodyLine) = parseStrata(smapData.kotlin1, line, project, false, searchScope) ?: return null
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inlineInfo.add(InlineFunctionHyperLinkInfo.InlineInfo.InlineFunctionBodyInfo(
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inlineFunctionBodyFile.virtualFile,
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inlineFunctionBodyLine))
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val kotlin2 = parseStrata(smapData.kotlin2, line, project, true)
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val kotlin2 = parseStrata(smapData.kotlin2, line, project, true, searchScope)
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if (kotlin2 != null) {
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inlineInfo.add(InlineFunctionHyperLinkInfo.InlineInfo.CallSiteInfo(
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kotlin2.first.virtualFile,
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@@ -137,55 +102,6 @@ class KotlinExceptionFilter(private val searchScope: GlobalSearchScope) : Filter
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return InlineFunctionHyperLinkInfo(project, inlineInfo)
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}
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private fun parseStrata(strata: String?, line: Int, project: Project, isKotlin2: Boolean): Pair<KtFile, Int>? {
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if (strata == null) return null
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val mappings = SMAPParser.parse(strata)
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val mappingInfo = mappings.fileMappings.firstOrNull {
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it.getIntervalIfContains(line) != null
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} ?: return null
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val newJvmName = JvmClassName.byInternalName(mappingInfo.path)
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val newSourceFile = DebuggerUtils.findSourceFileForClassIncludeLibrarySources(project, searchScope, newJvmName, mappingInfo.name) ?: return null
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val interval = mappingInfo.getIntervalIfContains(line)!!
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return newSourceFile to (if (isKotlin2) interval.source else interval.mapDestToSource(line)) - 1
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}
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private fun readDebugInfo(bytes: ByteArray): SmapData? {
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val cr = ClassReader(bytes)
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var debugInfo: String? = null
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cr.accept(object : ClassVisitor(InlineCodegenUtil.API) {
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override fun visitSource(source: String?, debug: String?) {
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debugInfo = debug
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}
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}, ClassReader.SKIP_FRAMES and ClassReader.SKIP_CODE)
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return debugInfo?.let { SmapData(it) }
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}
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private class SmapData(debugInfo: String) {
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var kotlin1: String? = null
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private set
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var kotlin2: String? = null
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private set
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init {
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val intervals = debugInfo.split(SMAP.END).filter { it.isNotBlank() }
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when(intervals.count()) {
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1 -> {
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kotlin1 = intervals[0] + SMAP.END
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}
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else -> {
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kotlin1 = intervals[0] + SMAP.END
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kotlin2 = intervals[1] + SMAP.END
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}
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}
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}
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}
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private fun FileMapping.getIntervalIfContains(destLine: Int) = lineMappings.firstOrNull { it.contains(destLine) }
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private fun patchResult(result: Filter.Result, line: String): Filter.Result {
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val newHyperlinkInfo = createHyperlinkInfo(line) ?: return result
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