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/*
* * Copyright 2022 Google LLC. All rights reserved.
*
* 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 kapt
import com.google.auto.service.AutoService
import java.io.IOException
import java.io.UncheckedIOException
import java.nio.charset.StandardCharsets.UTF_8
import java.nio.file.Files
import java.nio.file.Paths
import javax.annotation.processing.AbstractProcessor
import javax.annotation.processing.Processor
import javax.annotation.processing.RoundEnvironment
import javax.annotation.processing.SupportedAnnotationTypes
import javax.lang.model.SourceVersion
import javax.lang.model.element.TypeElement
/** Annotation processor to test `data` dependencies specified with [MakeHelper] annotations. */
@AutoService(Processor::class)
@SupportedAnnotationTypes("*")
internal class ProcessorWithData : AbstractProcessor() {
private val template: String =
Files.readString(
Paths.get(
"tests/jvm/java/kapt/MakeHelperClass.java.template"
),
UTF_8
)
override fun getSupportedSourceVersion(): SourceVersion = SourceVersion.latestSupported()
override fun process(
annotations: Set<TypeElement>,
roundEnv: RoundEnvironment,
): Boolean {
for (element in roundEnv.getElementsAnnotatedWith(MakeHelper::class.java)) {
val c = element.getAnnotation(MakeHelper::class.java)
if (c.value.isNotEmpty()) {
try {
processingEnv.filer.createSourceFile(c.value, element).openWriter().use {
it.write(template.replace("|name|", c.value.substring(c.value.lastIndexOf(".") + 1)))
}
} catch (e: IOException) {
throw UncheckedIOException(e)
}
}
}
return false
}
}
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