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org.jetbrains.kotlin.fir.analysis.jvm.checkers.declaration.FirJvmInvalidAndDangerousCharactersChecker.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2022 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.jvm.checkers.declaration
import org.jetbrains.kotlin.KtFakeSourceElementKind
import org.jetbrains.kotlin.KtSourceElement
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
import org.jetbrains.kotlin.diagnostics.reportOn
import org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirBasicDeclarationChecker
import org.jetbrains.kotlin.fir.declarations.*
import org.jetbrains.kotlin.name.Name
object FirJvmInvalidAndDangerousCharactersChecker : FirBasicDeclarationChecker() {
// See The Java Virtual Machine Specification, section 4.7.9.1 https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.9.1
private val INVALID_CHARS = setOf('.', ';', '[', ']', '/', '<', '>', ':', '\\')
// These characters can cause problems on Windows. '?*"|' are not allowed in file names, and % leads to unexpected env var expansion.
private val DANGEROUS_CHARS = setOf('?', '*', '"', '|', '%')
override fun check(declaration: FirDeclaration, context: CheckerContext, reporter: DiagnosticReporter) {
val source = declaration.source
when (declaration) {
is FirRegularClass -> checkNameAndReport(declaration.name, source, context, reporter)
is FirSimpleFunction -> checkNameAndReport(declaration.name, source, context, reporter)
is FirTypeParameter -> checkNameAndReport(declaration.name, source, context, reporter)
is FirProperty -> checkNameAndReport(declaration.name, source, context, reporter)
is FirTypeAlias -> checkNameAndReport(declaration.name, source, context, reporter)
is FirValueParameter -> checkNameAndReport(declaration.name, source, context, reporter)
else -> return
}
}
private fun checkNameAndReport(name: Name, source: KtSourceElement?, context: CheckerContext, reporter: DiagnosticReporter) {
if (source != null &&
source.kind !is KtFakeSourceElementKind &&
!name.isSpecial
) {
val nameString = name.asString()
if (nameString.any { it in INVALID_CHARS }) {
reporter.reportOn(
source,
FirErrors.INVALID_CHARACTERS,
"contains illegal characters: ${INVALID_CHARS.intersect(nameString.toSet()).joinToString("")}",
context
)
} else if (nameString.any { it in DANGEROUS_CHARS }) {
reporter.reportOn(
source,
FirErrors.DANGEROUS_CHARACTERS,
DANGEROUS_CHARS.intersect(nameString.toSet()).joinToString(""),
context
)
}
}
}
}