org.jetbrains.kotlin.fir.analysis.checkers.syntax.FirFunctionTypeParametersSyntaxChecker.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.fir.analysis.checkers.syntax
import org.jetbrains.kotlin.KtFakeSourceElementKind
import org.jetbrains.kotlin.KtLightSourceElement
import org.jetbrains.kotlin.KtPsiSourceElement
import org.jetbrains.kotlin.KtSourceElement
import org.jetbrains.kotlin.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.diagnostics.nameIdentifier
import org.jetbrains.kotlin.diagnostics.reportOn
import org.jetbrains.kotlin.diagnostics.typeParametersList
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.diagnostics.*
import org.jetbrains.kotlin.fir.declarations.FirSimpleFunction
import org.jetbrains.kotlin.psi.KtFunction
import org.jetbrains.kotlin.psi.psiUtil.startOffset
object FirFunctionTypeParametersSyntaxChecker : FirDeclarationSyntaxChecker() {
override fun isApplicable(element: FirSimpleFunction, source: KtSourceElement): Boolean =
source.kind !is KtFakeSourceElementKind
override fun checkPsi(
element: FirSimpleFunction,
source: KtPsiSourceElement,
psi: KtFunction,
context: CheckerContext,
reporter: DiagnosticReporter
) {
val typeParamsNode = psi.typeParameterList
val nameNode = psi.nameIdentifier
if (typeParamsNode != null && nameNode != null && typeParamsNode.startOffset > nameNode.startOffset) {
reporter.reportOn(
source,
FirErrors.DEPRECATED_TYPE_PARAMETER_SYNTAX,
context
)
}
}
override fun checkLightTree(
element: FirSimpleFunction,
source: KtLightSourceElement,
context: CheckerContext,
reporter: DiagnosticReporter
) {
val typeParamsNode = source.treeStructure.typeParametersList(source.lighterASTNode)
val nameNode = source.treeStructure.nameIdentifier(source.lighterASTNode)
if (typeParamsNode != null && nameNode != null && typeParamsNode.startOffset > nameNode.startOffset) {
reporter.reportOn(
source,
FirErrors.DEPRECATED_TYPE_PARAMETER_SYNTAX,
context
)
}
}
}