org.jetbrains.kotlin.kdoc.psi.impl.KDocName.kt Maven / Gradle / Ivy

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/*
 * 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.kdoc.psi.impl

import com.intellij.lang.ASTNode
import org.jetbrains.kotlin.psi.KtElementImpl
import org.jetbrains.kotlin.kdoc.psi.api.KDoc
import org.jetbrains.kotlin.psi.psiUtil.getStrictParentOfType
import com.intellij.openapi.util.TextRange
import org.jetbrains.kotlin.lexer.KtTokens
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.psi.psiUtil.getChildOfType

/**
 * A single part of a qualified name in the tag subject or link.
 */
class KDocName(node: ASTNode) : KtElementImpl(node) {
    fun getContainingDoc(): KDoc {
        val kdoc = getStrictParentOfType()
        return kdoc ?: throw IllegalStateException("KDocName must be inside a KDoc")
    }

    fun getContainingSection(): KDocSection {
        val kdoc = getStrictParentOfType()
        return kdoc ?: throw IllegalStateException("KDocName must be inside a KDocSection")
    }

    fun getQualifier(): KDocName? = getChildOfType()

    /**
     * Returns the range within the element containing the name (in other words,
     * the range of the element excluding the qualifier and dot, if present).
     */
    fun getNameTextRange(): TextRange {
        val dot = node.findChildByType(KtTokens.DOT)
        val textRange = textRange
        val nameStart = if (dot != null) dot.textRange.endOffset - textRange.startOffset else 0
        return TextRange(nameStart, textRange.length)
    }

    fun getNameText(): String = getNameTextRange().substring(text)

    fun getQualifiedName(): List {
        val qualifier = getQualifier()
        val nameAsList = listOf(getNameText())
        return if (qualifier != null) qualifier.getQualifiedName() + nameAsList else nameAsList
    }

    fun getQualifiedNameAsFqName(): FqName {
        return FqName.fromSegments(getQualifiedName())
    }
}