org.jetbrains.kotlin.ir.PsiIrFileEntry.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2021 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.ir
import com.intellij.psi.PsiElement
import com.intellij.psi.PsiFile
import com.intellij.psi.util.PsiTreeUtil
import kotlin.reflect.KClass
class PsiIrFileEntry(val psiFile: PsiFile) : IrFileEntry {
private val psiFileName = psiFile.virtualFile?.path ?: psiFile.name
override val maxOffset: Int
private val lineStartOffsets: IntArray
private val fileViewProvider = psiFile.viewProvider
init {
val document = fileViewProvider.document ?: throw AssertionError("No document for $psiFile")
maxOffset = document.textLength
lineStartOffsets = IntArray(document.lineCount) { document.getLineStartOffset(it) }
}
override fun getLineNumber(offset: Int): Int {
if (offset < 0) return -1
val index = lineStartOffsets.binarySearch(offset)
return if (index >= 0) index else -index - 2
}
override fun getColumnNumber(offset: Int): Int {
if (offset < 0) return -1
val lineNumber = getLineNumber(offset)
if (lineNumber < 0) return -1
return offset - lineStartOffsets[lineNumber]
}
override fun getSourceRangeInfo(beginOffset: Int, endOffset: Int): SourceRangeInfo =
SourceRangeInfo(
filePath = getRecognizableName(),
startOffset = beginOffset,
startLineNumber = getLineNumber(beginOffset),
startColumnNumber = getColumnNumber(beginOffset),
endOffset = endOffset,
endLineNumber = getLineNumber(endOffset),
endColumnNumber = getColumnNumber(endOffset)
)
private fun getRecognizableName(): String = psiFileName
override val name: String get() = getRecognizableName()
override fun toString(): String = getRecognizableName()
fun getLineOffsets() = lineStartOffsets.copyOf()
fun findPsiElement(irElement: IrElement): PsiElement? {
var psiElement = fileViewProvider.findElementAt(irElement.startOffset)
while (psiElement != null) {
if (irElement.endOffset == psiElement.textRange?.endOffset) break
psiElement = psiElement.parent
}
return psiElement
}
fun findPsiElement(irElement: IrElement, psiElementClass: KClass): E? =
findPsiElement(irElement)?.let {
PsiTreeUtil.getParentOfType(it, psiElementClass.java, false)
}
}