org.jetbrains.kotlin.js.resolve.diagnostics.JsBuiltinNameClashChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 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.js.resolve.diagnostics
import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
import org.jetbrains.kotlin.js.naming.NameSuggestion
import org.jetbrains.kotlin.js.translate.utils.AnnotationsUtils
import org.jetbrains.kotlin.psi.KtDeclaration
import org.jetbrains.kotlin.resolve.checkers.DeclarationChecker
import org.jetbrains.kotlin.resolve.checkers.DeclarationCheckerContext
class JsBuiltinNameClashChecker(private val nameSuggestion: NameSuggestion) : DeclarationChecker {
override fun check(declaration: KtDeclaration, descriptor: DeclarationDescriptor, context: DeclarationCheckerContext) {
if (AnnotationsUtils.isNativeObject(descriptor)) return
if (descriptor.containingDeclaration !is ClassDescriptor) return
val suggestedName = nameSuggestion.suggest(descriptor, context.trace.bindingContext)!!
if (!suggestedName.stable) return
val simpleName = suggestedName.names.single()
if (descriptor is ClassDescriptor) {
if (simpleName in PROHIBITED_STATIC_NAMES) {
context.trace.report(ErrorsJs.JS_BUILTIN_NAME_CLASH.on(declaration, "Function.$simpleName"))
}
}
else if (descriptor is CallableMemberDescriptor) {
if (simpleName in PROHIBITED_MEMBER_NAMES) {
context.trace.report(ErrorsJs.JS_BUILTIN_NAME_CLASH.on(declaration, "Object.prototype.$simpleName"))
}
}
}
companion object {
@JvmField
val PROHIBITED_STATIC_NAMES = setOf("prototype", "length", "\$metadata\$")
@JvmField
val PROHIBITED_MEMBER_NAMES = setOf("constructor")
}
}