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respect nullability annotations on Java type references.
* for referenced java types, compiler already handles nullability annotations. * fixes #167
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test-utils/src/main/kotlin/com/google/devtools/ksp/processor/JavaNonNullProcessor.kt
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/* | ||
* Copyright 2022 Google LLC | ||
* Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors. | ||
* | ||
* 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. | ||
*/ | ||
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package com.google.devtools.ksp.processor | ||
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import com.google.devtools.ksp.isConstructor | ||
import com.google.devtools.ksp.processing.Resolver | ||
import com.google.devtools.ksp.symbol.KSAnnotated | ||
import com.google.devtools.ksp.symbol.KSFunctionDeclaration | ||
import com.google.devtools.ksp.symbol.KSNode | ||
import com.google.devtools.ksp.symbol.KSPropertyDeclaration | ||
import com.google.devtools.ksp.symbol.KSValueParameter | ||
import com.google.devtools.ksp.visitor.KSTopDownVisitor | ||
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class JavaNonNullProcessor : AbstractTestProcessor() { | ||
val results = mutableListOf<String>() | ||
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override fun toResult(): List<String> { | ||
return results | ||
} | ||
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override fun process(resolver: Resolver): List<KSAnnotated> { | ||
resolver.getNewFiles().forEach { | ||
it.accept( | ||
object : KSTopDownVisitor<Unit, Unit>() { | ||
override fun defaultHandler(node: KSNode, data: Unit) { | ||
} | ||
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override fun visitFunctionDeclaration(function: KSFunctionDeclaration, data: Unit) { | ||
if (function.isConstructor()) { | ||
return | ||
} | ||
results.add("${function.simpleName.asString()}: ${function.returnType?.resolve()?.nullability}") | ||
super.visitFunctionDeclaration(function, data) | ||
} | ||
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override fun visitPropertyDeclaration(property: KSPropertyDeclaration, data: Unit) { | ||
results.add("${property.simpleName.asString()}: ${property.type.resolve().nullability}") | ||
} | ||
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override fun visitValueParameter(valueParameter: KSValueParameter, data: Unit) { | ||
results.add("${valueParameter.name?.asString()}: ${valueParameter.type.resolve().nullability}") | ||
} | ||
}, | ||
Unit | ||
) | ||
} | ||
return emptyList() | ||
} | ||
} |
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/* | ||
* Copyright 2022 Google LLC | ||
* Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors. | ||
* | ||
* 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. | ||
*/ | ||
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// WITH_RUNTIME | ||
// TEST PROCESSOR: JavaNonNullProcessor | ||
// EXPECTED: | ||
// javaNotNullFieldRef: NOT_NULL | ||
// javaNullableFieldRef: NULLABLE | ||
// javaBothFieldRef: PLATFORM | ||
// javaNoneFieldRef: NULLABLE | ||
// bothField: PLATFORM | ||
// nullableField: NULLABLE | ||
// notNullField: NOT_NULL | ||
// noneField: PLATFORM | ||
// notNullFun: NOT_NULL | ||
// nullableParam: NULLABLE | ||
// END | ||
// MODULE: lib | ||
// FILE: dummy.kt | ||
class dummy | ||
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// FILE: org/jetbrains/annotations/NotNull.java | ||
package org.jetbrains.annotations; | ||
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public @interface NotNull { | ||
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} | ||
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// FILE: org/jetbrains/annotations/Nullable.java | ||
package org.jetbrains.annotations; | ||
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public @interface Nullable { | ||
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} | ||
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// MODULE: main(lib) | ||
// FILE: a.kt | ||
val javaNotNullFieldRef = JavaNonNull().notNullField | ||
val javaNullableFieldRef = JavaNonNull().nullableField | ||
val javaBothFieldRef = JavaNonNull().bothField | ||
val javaNoneFieldRef = JavaNonNull().nonField | ||
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// FILE: JavaNonNull.java | ||
import org.jetbrains.annotations.NotNull; | ||
import org.jetbrains.annotations.Nullable; | ||
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public class JavaNonNull { | ||
@Nullable | ||
@NotNull | ||
public String bothField; | ||
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@Nullable | ||
public String nullableField; | ||
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@NotNull | ||
public String notNullField; | ||
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public String noneField; | ||
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@NotNull | ||
public String notNullFun(@Nullable String nullableParam) {} | ||
} |