tagan.lang-jap.1.5.1.source-code.JavaxAnnotatedImpl.kt Maven / Gradle / Ivy

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Yatagan is a Dependency Injection framework, specializing on runtime performance and build speed. Supports code generation (apt/kapt/ksp) or reflection.

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/*
 * Copyright 2022 Yandex LLC
 *
 * 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 com.yandex.yatagan.lang.jap

import com.yandex.yatagan.lang.compiled.CtAnnotated
import com.yandex.yatagan.lang.compiled.CtAnnotationBase
import javax.lang.model.element.AnnotationMirror
import javax.lang.model.element.Element

internal class JavaxAnnotatedImpl(
    private val impl: Element,
) : CtAnnotated {

    override val annotations: Sequence by lazy {
        val annotations = impl.annotationMirrors.map { JavaxAnnotationImpl(it) }
        if (impl.isFromKotlin()) {
            // Means this is from KAPT, and it's known to be reversing annotations order.
            annotations.asReversed()
        } else {
            annotations
        }.asSequence()
    }

    override fun  isAnnotatedWith(type: Class): Boolean {
        return getAnnotationIfPresent(type) != null
    }

    private fun  getAnnotationIfPresent(clazz: Class): AnnotationMirror? {
        val annotationClassName = clazz.canonicalName
        for (annotationMirror in impl.annotationMirrors) {
            val annotationTypeElement = annotationMirror.annotationType.asTypeElement()
            if (annotationTypeElement.qualifiedName.contentEquals(annotationClassName)) {
                return annotationMirror
            }
        }
        return null
    }
}

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