org.jetbrains.kotlin.psi.KtQualifiedExpressionImpl.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.psi
import com.intellij.lang.ASTNode
import org.jetbrains.kotlin.lexer.KtToken
import org.jetbrains.kotlin.lexer.KtTokens
import com.intellij.psi.util.PsiTreeUtil
import org.jetbrains.kotlin.psi.psiUtil.*
object KtQualifiedExpressionImpl {
fun KtQualifiedExpression.getOperationTokenNode(): ASTNode {
val operationNode = this.node!!.findChildByType(KtTokens.OPERATIONS)
return operationNode!!
}
fun KtQualifiedExpression.getOperationSign(): KtToken {
return this.operationTokenNode.elementType as KtToken
}
private fun KtQualifiedExpression.getExpression(afterOperation: Boolean): KtExpression? {
return operationTokenNode.psi?.siblings(afterOperation, false)?.firstOrNull { it is KtExpression } as? KtExpression
}
fun KtQualifiedExpression.getReceiverExpression(): KtExpression {
return getExpression(false) ?: throw AssertionError("No receiver found: ${getElementTextWithContext()}")
}
fun KtQualifiedExpression.getSelectorExpression(): KtExpression? {
return getExpression(true)
}
}