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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during
compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based
@AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step.
This library is a superset of AspectJ weaver and hence also of AspectJ runtime.
/*******************************************************************************
* Copyright (c) 2012, 2020 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Andy Clement (GoPivotal, Inc) [email protected] - Contributions for
* Bug 383624 - [1.8][compiler] Revive code generation support for type annotations (from Olivier's work)
* Bug 409247 - [1.8][compiler] Verify error with code allocating multidimensional array
* Bug 409517 - [1.8][compiler] Type annotation problems on more elaborate array references
* Bug 409250 - [1.8][compiler] Various loose ends in 308 code generation
*******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.compiler.codegen;
import java.util.ArrayList;
import java.util.List;
import org.aspectj.org.eclipse.jdt.internal.compiler.ClassFile;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.ArrayAllocationExpression;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeReference;
import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ArrayBinding;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
public class TypeAnnotationCodeStream extends StackMapFrameCodeStream {
public List allTypeAnnotationContexts;
public TypeAnnotationCodeStream(ClassFile givenClassFile) {
super(givenClassFile);
this.generateAttributes |= ClassFileConstants.ATTR_TYPE_ANNOTATION;
this.allTypeAnnotationContexts = new ArrayList<>();
}
private void addAnnotationContext(TypeReference typeReference, int info, int targetType, ArrayAllocationExpression allocationExpression) {
allocationExpression.getAllAnnotationContexts(targetType, info, this.allTypeAnnotationContexts);
}
private void addAnnotationContext(TypeReference typeReference, int info, int targetType) {
typeReference.getAllAnnotationContexts(targetType, info, this.allTypeAnnotationContexts);
}
private void addAnnotationContext(TypeReference typeReference, int info, int typeIndex, int targetType) {
typeReference.getAllAnnotationContexts(targetType, info, typeIndex, this.allTypeAnnotationContexts);
}
@Override
public void instance_of(TypeReference typeReference, TypeBinding typeBinding) {
if (typeReference != null && (typeReference.bits & ASTNode.HasTypeAnnotations) != 0) {
addAnnotationContext(typeReference, this.position, AnnotationTargetTypeConstants.INSTANCEOF);
}
super.instance_of(typeReference, typeBinding);
}
@Override
public void multianewarray(
TypeReference typeReference,
TypeBinding typeBinding,
int dimensions,
ArrayAllocationExpression allocationExpression) {
if (typeReference != null && (typeReference.bits & ASTNode.HasTypeAnnotations) != 0) {
addAnnotationContext(typeReference, this.position, AnnotationTargetTypeConstants.NEW, allocationExpression);
}
super.multianewarray(typeReference, typeBinding, dimensions, allocationExpression);
}
@Override
public void new_(TypeReference typeReference, TypeBinding typeBinding) {
if (typeReference != null && (typeReference.bits & ASTNode.HasTypeAnnotations) != 0) {
addAnnotationContext(typeReference, this.position, AnnotationTargetTypeConstants.NEW);
}
super.new_(typeReference, typeBinding);
}
@Override
public void newArray(TypeReference typeReference, ArrayAllocationExpression allocationExpression, ArrayBinding arrayBinding) {
if (typeReference != null && (typeReference.bits & ASTNode.HasTypeAnnotations) != 0) {
addAnnotationContext(typeReference, this.position, AnnotationTargetTypeConstants.NEW, allocationExpression);
}
super.newArray(typeReference, allocationExpression, arrayBinding);
}
@Override
public void checkcast(TypeReference typeReference, TypeBinding typeBinding, int currentPosition) {
/* We use a slightly sub-optimal generation for intersection casts by resorting to a runtime cast for every intersecting type, but in
reality this should not matter. In its intended use form such as (I & Serializable) () -> {}, no cast is emitted at all. Also note
intersection cast type references cannot nest i.e ((X & I) & J) is not valid syntax.
*/
if (typeReference != null) {
TypeReference [] typeReferences = typeReference.getTypeReferences();
for (int i = typeReferences.length - 1; i >= 0; i--) { // need to emit right to left.
typeReference = typeReferences[i];
if (typeReference != null) {
if ((typeReference.bits & ASTNode.HasTypeAnnotations) != 0) {
if (!typeReference.resolvedType.isBaseType()) {
addAnnotationContext(typeReference, this.position, i, AnnotationTargetTypeConstants.CAST);
} else {
// for base type record it against the start position of the expression
addAnnotationContext(typeReference, currentPosition, i, AnnotationTargetTypeConstants.CAST);
}
}
if (!typeReference.resolvedType.isBaseType()) {
super.checkcast(typeReference, typeReference.resolvedType, currentPosition);
}
}
}
} else {
super.checkcast(null, typeBinding, currentPosition);
}
}
@Override
public void invoke(byte opcode, MethodBinding methodBinding, TypeBinding declaringClass, TypeReference[] typeArguments) {
if (typeArguments != null) {
int targetType = methodBinding.isConstructor()
? AnnotationTargetTypeConstants.CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT
: AnnotationTargetTypeConstants.METHOD_INVOCATION_TYPE_ARGUMENT;
for (int i = 0, max = typeArguments.length; i < max; i++) {
TypeReference typeArgument = typeArguments[i];
if ((typeArgument.bits & ASTNode.HasTypeAnnotations) != 0) {
addAnnotationContext(typeArgument, this.position, i, targetType);
}
}
}
super.invoke(opcode, methodBinding, declaringClass, typeArguments);
}
@Override
public void invokeDynamic(int bootStrapIndex, int argsSize, int returnTypeSize, char[] selector, char[] signature,
boolean isConstructorReference, TypeReference lhsTypeReference, TypeReference [] typeArguments,
int typeId, TypeBinding type) {
if (lhsTypeReference != null && (lhsTypeReference.bits & ASTNode.HasTypeAnnotations) != 0) {
if (isConstructorReference) {
addAnnotationContext(lhsTypeReference, this.position, 0, AnnotationTargetTypeConstants.CONSTRUCTOR_REFERENCE);
} else {
addAnnotationContext(lhsTypeReference, this.position, 0, AnnotationTargetTypeConstants.METHOD_REFERENCE);
}
}
if (typeArguments != null) {
int targetType =
isConstructorReference
? AnnotationTargetTypeConstants.CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT
: AnnotationTargetTypeConstants.METHOD_REFERENCE_TYPE_ARGUMENT;
for (int i = 0, max = typeArguments.length; i < max; i++) {
TypeReference typeArgument = typeArguments[i];
if ((typeArgument.bits & ASTNode.HasTypeAnnotations) != 0) {
addAnnotationContext(typeArgument, this.position, i, targetType);
}
}
}
super.invokeDynamic(bootStrapIndex, argsSize, returnTypeSize, selector, signature, isConstructorReference, lhsTypeReference, typeArguments, typeId, type);
}
@Override
public void reset(ClassFile givenClassFile) {
super.reset(givenClassFile);
this.allTypeAnnotationContexts = new ArrayList<>();
}
@Override
public void init(ClassFile targetClassFile) {
super.init(targetClassFile);
this.allTypeAnnotationContexts = new ArrayList<>();
}
}