org.jetbrains.kotlin.load.kotlin.VirtualFileKotlinClass.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.load.kotlin
import com.intellij.ide.highlighter.JavaClassFileType
import com.intellij.openapi.diagnostic.ControlFlowException
import com.intellij.openapi.diagnostic.Logger
import com.intellij.openapi.vfs.VirtualFile
import org.jetbrains.kotlin.load.kotlin.KotlinClassFinder.Result.KotlinClass
import org.jetbrains.kotlin.load.kotlin.header.KotlinClassHeader
import org.jetbrains.kotlin.name.ClassId
import org.jetbrains.kotlin.util.PerformanceCounter
import org.jetbrains.kotlin.utils.rethrow
import java.io.FileNotFoundException
import java.io.IOException
class VirtualFileKotlinClass private constructor(
val file: VirtualFile,
className: ClassId,
classVersion: Int,
classHeader: KotlinClassHeader,
innerClasses: InnerClassesInfo
) : FileBasedKotlinClass(className, classVersion, classHeader, innerClasses) {
override val location: String
get() = file.path
override fun getFileContents(): ByteArray {
try {
return file.contentsToByteArray()
} catch (e: IOException) {
LOG.error(renderFileReadingErrorMessage(file), e)
throw rethrow(e)
}
}
override fun equals(other: Any?) = other is VirtualFileKotlinClass && other.file == file
override fun hashCode() = file.hashCode()
override fun toString() = "${this::class.java.simpleName}: $file"
companion object Factory {
private val LOG = Logger.getInstance(VirtualFileKotlinClass::class.java)
private val perfCounter = PerformanceCounter.create("Binary class from Kotlin file")
@Deprecated("Use KotlinBinaryClassCache")
fun create(file: VirtualFile, fileContent: ByteArray?): KotlinClassFinder.Result? {
return perfCounter.time {
assert(file.fileType == JavaClassFileType.INSTANCE) { "Trying to read binary data from a non-class file $file" }
try {
val byteContent = fileContent ?: file.contentsToByteArray(false)
if (!byteContent.isEmpty()) {
val kotlinJvmBinaryClass = FileBasedKotlinClass.create(byteContent) { name, classVersion, header, innerClasses ->
VirtualFileKotlinClass(file, name, classVersion, header, innerClasses)
}
return@time kotlinJvmBinaryClass?.let { KotlinClass(it, byteContent) }
?: KotlinClassFinder.Result.ClassFileContent(byteContent)
}
} catch (e: FileNotFoundException) {
// Valid situation. User can delete jar file.
} catch (e: Throwable) {
if (e is ControlFlowException) {
throw e
}
LOG.warn(renderFileReadingErrorMessage(file), e)
}
null
}
}
private fun renderFileReadingErrorMessage(file: VirtualFile): String =
"Could not read file: ${file.path}; size in bytes: ${file.length}; file type: ${file.fileType.name}"
}
}