Example usage for org.objectweb.asm Opcodes ASM5

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes ASM5.

Prototype

int ASM5

To view the source code for org.objectweb.asm Opcodes ASM5.

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Usage

From source file:com.google.devtools.build.android.desugar.DesugarObjectsRequireNonNullTest.java

License:Open Source License

@Test
public void testClassCallingRequireNonNullHasNoReferenceToRequiresNonNull() {
    try {/*  w  w w  . j  a v  a 2s . c  o m*/
        ClassReader reader = new ClassReader(ClassCallingRequireNonNull.class.getName());

        AtomicInteger counterForSingleArgument = new AtomicInteger(0);
        AtomicInteger counterForString = new AtomicInteger(0);
        AtomicInteger counterForSupplier = new AtomicInteger(0);

        reader.accept(new ClassVisitor(Opcodes.ASM5) {
            @Override
            public MethodVisitor visitMethod(int access, String name, String desc, String signature,
                    String[] exceptions) {
                return new MethodVisitor(api) {
                    @Override
                    public void visitMethodInsn(int opcode, String owner, String name, String desc,
                            boolean itf) {
                        if (opcode == INVOKESTATIC && owner.equals("java/util/Objects")
                                && name.equals("requireNonNull")) {
                            switch (desc) {
                            case "(Ljava/lang/Object;)Ljava/lang/Object;":
                                counterForSingleArgument.incrementAndGet();
                                break;
                            case "(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;":
                                counterForString.incrementAndGet();
                                break;
                            case "(Ljava/lang/Object;Ljava/util/function/Supplier;)Ljava/lang/Object;":
                                counterForSupplier.incrementAndGet();
                                break;
                            default:
                                fail("Unknown overloaded requireNonNull is found: " + desc);
                            }
                        }
                    }
                };
            }
        }, 0);
        assertThat(counterForSingleArgument.get()).isEqualTo(0);
        // we do not desugar requireNonNull(Object, String) or requireNonNull(Object, Supplier)
        assertThat(counterForString.get()).isEqualTo(1);
        assertThat(counterForSupplier.get()).isEqualTo(1);
    } catch (IOException e) {
        fail();
    }
}

From source file:com.google.devtools.build.android.desugar.InterfaceDesugaring.java

License:Open Source License

public InterfaceDesugaring(ClassVisitor dest, ClassReaderFactory bootclasspath, GeneratedClassStore store) {
    super(Opcodes.ASM5, dest);
    this.bootclasspath = bootclasspath;
    this.store = store;
}

From source file:com.google.devtools.build.android.desugar.InvokeDynamicLambdaMethodCollector.java

License:Open Source License

public InvokeDynamicLambdaMethodCollector() {
    super(Opcodes.ASM5);
}

From source file:com.google.devtools.build.android.desugar.Java7Compatibility.java

License:Open Source License

public Java7Compatibility(ClassVisitor cv, ClassReaderFactory factory) {
    super(Opcodes.ASM5, cv);
    this.factory = factory;
}

From source file:com.google.devtools.build.android.desugar.LambdaClassFixer.java

License:Open Source License

public LambdaClassFixer(ClassVisitor dest, LambdaInfo lambdaInfo, ClassReaderFactory factory,
        ImmutableSet<String> interfaceLambdaMethods, boolean allowDefaultMethods) {
    super(Opcodes.ASM5, dest);
    this.lambdaInfo = lambdaInfo;
    this.factory = factory;
    this.interfaceLambdaMethods = interfaceLambdaMethods;
    this.allowDefaultMethods = allowDefaultMethods;
}

From source file:com.google.devtools.build.android.desugar.LambdaDesugaring.java

License:Open Source License

public LambdaDesugaring(ClassVisitor dest, ClassLoader targetLoader, LambdaClassMaker lambdas,
        ImmutableSet.Builder<String> aggregateInterfaceLambdaMethods, boolean allowDefaultMethods) {
    super(Opcodes.ASM5, dest);
    this.targetLoader = targetLoader;
    this.lambdas = lambdas;
    this.aggregateInterfaceLambdaMethods = aggregateInterfaceLambdaMethods;
    this.allowDefaultMethods = allowDefaultMethods;
}

From source file:com.google.devtools.build.android.desugar.TryWithResourcesRewriterTest.java

License:Open Source License

/** Check whether java.lang.AutoCloseable is used as arguments of any method. */
private static boolean hasAutoCloseable(byte[] classContent) {
    ClassReader reader = new ClassReader(classContent);
    final AtomicInteger counter = new AtomicInteger();
    ClassVisitor visitor = new ClassVisitor(Opcodes.ASM5) {
        @Override/*ww w . j  a  va2 s . c om*/
        public MethodVisitor visitMethod(int access, String name, String desc, String signature,
                String[] exceptions) {
            for (Type argumentType : Type.getArgumentTypes(desc)) {
                if ("Ljava/lang/AutoCloseable;".equals(argumentType.getDescriptor())) {
                    counter.incrementAndGet();
                }
            }
            return null;
        }
    };
    reader.accept(visitor, 0);
    return counter.get() > 0;
}

From source file:com.google.devtools.j2objc.gen.TypeGenerator.java

License:Apache License

private boolean areParametersNonnullByDefault() {
    if (BindingUtil.hasAnnotation(typeBinding, ParametersAreNonnullByDefault.class)) {
        return true;
    }//from w w  w .  j  a v a2 s .  c om
    IPackageBinding pkg = typeBinding.getPackage();
    try {
        // See if a package-info source file has a ParametersAreNonnullByDefault annotation.
        InputFile file = FileUtil.findOnSourcePath(pkg.getName() + ".package-info");
        if (file != null) {
            String pkgInfo = FileUtil.readFile(file);
            if (pkgInfo.indexOf("@ParametersAreNonnullByDefault") >= 0) {
                return true;
            }
            if (pkgInfo.indexOf("@javax.annotation.ParametersAreNonnullByDefault") >= 0) {
                return true;
            }
        }

        // See if the package-info class file has it.
        final boolean[] result = new boolean[1];
        file = FileUtil.findOnClassPath(pkg.getName() + ".package-info");
        if (file != null) {
            ClassReader classReader = new ClassReader(file.getInputStream());
            classReader.accept(new ClassVisitor(Opcodes.ASM5) {
                @Override
                public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                    if (desc.equals("Ljavax/annotation/ParametersAreNonnullByDefault;")) {
                        result[0] = true;
                    }
                    return null;
                }
            }, 0);
            return result[0];
        }
    } catch (IOException e) {
        // fall-through
    }
    return false;
}

From source file:com.google.devtools.j2objc.util.PackageInfoLookup.java

License:Apache License

private PackageData parseDataFromClassFile(InputFile file) throws IOException {
    PackageDataBuilder builder = new PackageDataBuilder();
    ClassReader classReader = new ClassReader(file.getInputStream());
    classReader.accept(new ClassVisitor(Opcodes.ASM5) {
        @Override//ww  w.  jav a 2 s. co  m
        public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
            if (desc.equals("Lcom/google/j2objc/annotations/ObjectiveCName;")) {
                return new AnnotationVisitor(Opcodes.ASM5) {
                    @Override
                    public void visit(String name, Object value) {
                        if (name.equals("value")) {
                            builder.setObjectiveCName(value.toString());
                        }
                    }
                };
            } else if (desc.equals("Ljavax/annotation/ParametersAreNonnullByDefault;")) {
                builder.setParametersAreNonnullByDefault();
            } else if (desc.equals("Lcom/google/j2objc/annotations/ReflectionSupport;")) {
                return new AnnotationVisitor(Opcodes.ASM5) {
                    @Override
                    public void visitEnum(String name, String desc, String value) {
                        if (desc.equals("Lcom/google/j2objc/annotations/ReflectionSupport$Level;")
                                && name.equals("value")) {
                            builder.setReflectionSupportLevel(ReflectionSupport.Level.valueOf(value));
                        }
                    }
                };
            }
            return null;
        }
    }, 0);
    return builder.build();
}

From source file:com.google.devtools.j2objc.util.PackagePrefixes.java

License:Apache License

/**
 * Check if there is a package-info class with a prefix annotation.
 *//*from w w w . java 2 s.c om*/
private String getPrefixFromPackageInfoClass(String packageName) {
    final String[] result = new String[1];
    try {
        InputFile file = FileUtil.findOnClassPath(packageName + ".package-info");
        if (file != null) {
            ClassReader classReader = new ClassReader(file.getInputStream());
            classReader.accept(new ClassVisitor(Opcodes.ASM5) {
                @Override
                public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
                    if (!desc.equals("Lcom/google/j2objc/annotations/ObjectiveCName;")) {
                        return null;
                    }
                    return new AnnotationVisitor(Opcodes.ASM5) {
                        @Override
                        public void visit(String name, Object value) {
                            if (name.equals("value")) {
                                result[0] = value.toString();
                            }
                        }
                    };
                }
            }, 0);
        }
    } catch (IOException e) {
        // Continue, as there's no package-info to check.
    }
    return result[0];
}