org.jetbrains.kotlin.renderer.RenderingUtils.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.renderer
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.FqNameUnsafe
import org.jetbrains.kotlin.name.Name
fun Name.render(): String {
return if (this.shouldBeEscaped()) '`' + asString() + '`' else asString()
}
private fun Name.shouldBeEscaped(): Boolean {
val string = asString()
return string in KeywordStringsGenerated.KEYWORDS ||
string.any { !Character.isLetterOrDigit(it) && it != '_' } ||
string.isEmpty() ||
!Character.isJavaIdentifierStart(string.codePointAt(0))
}
fun FqNameUnsafe.render(): String {
return renderFqName(pathSegments())
}
fun FqName.render(): String {
return renderFqName(pathSegments())
}
fun renderFqName(pathSegments: List): String {
return buildString {
for (element in pathSegments) {
if (length > 0) {
append(".")
}
append(element.render())
}
}
}
fun replacePrefixesInTypeRepresentations(
lowerRendered: String,
lowerPrefix: String,
upperRendered: String,
upperPrefix: String,
foldedPrefix: String
): String? {
if (lowerRendered.startsWith(lowerPrefix) && upperRendered.startsWith(upperPrefix)) {
val lowerWithoutPrefix = lowerRendered.substring(lowerPrefix.length)
val upperWithoutPrefix = upperRendered.substring(upperPrefix.length)
val flexibleCollectionName = foldedPrefix + lowerWithoutPrefix
if (lowerWithoutPrefix == upperWithoutPrefix) return flexibleCollectionName
if (typeStringsDifferOnlyInNullability(lowerWithoutPrefix, upperWithoutPrefix)) {
return "$flexibleCollectionName!"
}
}
return null
}
fun typeStringsDifferOnlyInNullability(lower: String, upper: String) =
lower == upper.replace("?", "") || upper.endsWith("?") && ("$lower?") == upper || "($lower)?" == upper