Example usage for org.objectweb.asm MethodVisitor visitMethodInsn

List of usage examples for org.objectweb.asm MethodVisitor visitMethodInsn

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitMethodInsn.

Prototype

public void visitMethodInsn(final int opcode, final String owner, final String name, final String descriptor,
        final boolean isInterface)

Source Link

Document

Visits a method instruction.

Usage

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds a value list on to the top of the stack.
 * @param method the current method visitor
 * @param values the array elements//from   w  w  w .j  av  a  2s  .  c  om
 */
public static void getList(MethodVisitor method, Collection<?> values) {
    getInt(method, values.size());
    method.visitTypeInsn(Opcodes.ANEWARRAY, typeOf(Object.class).getInternalName());
    int index = 0;
    for (Object value : values) {
        method.visitInsn(Opcodes.DUP);
        getInt(method, index++);
        getConst(method, value);
        method.visitInsn(Opcodes.AASTORE);
    }
    method.visitMethodInsn(Opcodes.INVOKESTATIC, typeOf(Arrays.class).getInternalName(), "asList",
            Type.getMethodDescriptor(typeOf(List.class), typeOf(Object[].class)), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds an new instance of the target type on to the top of the stack.
 * @param method the current method visitor
 * @param type the target type//w w w  .  j a  v  a2 s .c o m
 */
public static void getNew(MethodVisitor method, TypeDescription type) {
    Type t = typeOf(type);
    method.visitTypeInsn(Opcodes.NEW, t.getInternalName());
    method.visitInsn(Opcodes.DUP);
    method.visitMethodInsn(Opcodes.INVOKESPECIAL, t.getInternalName(), CONSTRUCTOR_NAME,
            Type.getMethodDescriptor(Type.VOID_TYPE), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds a {@code get*Option()} method invocation.
 * @param method the target method//from   w  ww  .  j a v  a 2 s. co m
 * @param property the target property
 */
public static void getOption(MethodVisitor method, PropertyReference property) {
    MethodDescription decl = property.getDeclaration();
    assert decl.getParameterTypes().isEmpty();
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, decl.getDeclaringClass().getInternalName(), decl.getName(),
            Type.getMethodDescriptor(typeOf(property.getType())), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Invokes {@code ValueOption#isNull()}.
 * @param method the target method/*w  w w .  j  a  v  a2s  .  com*/
 * @param dataType the data type
 */
public static void getNullity(MethodVisitor method, TypeDescription dataType) {
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, typeOf(dataType).getInternalName(), "isNull",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Invokes {@code ValueOption#copyFrom(ValueOption)}.
 * @param method the target method/*  w  w  w.  j a v  a 2 s  .c  om*/
 * @param dataType the data type
 */
public static void copyOption(MethodVisitor method, TypeDescription dataType) {
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, typeOf(dataType).getInternalName(), "copyFrom",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(dataType)), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Sets {@code null} to a {@code ValueOption}.
 * @param method the target method// w  ww.  j a  va2  s .c o m
 */
public static void setNullOption(MethodVisitor method) {
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, VALUE_OPTION_TYPE.getInternalName(), "setNull",
            Type.getMethodDescriptor(typeOf(VALUE_OPTION_TYPE)), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Invokes {@code DataModel#reset()}.//from   w  ww.  j  a va 2 s.  c o  m
 * @param method the target method
 * @param dataType the data type
 */
public static void resetDataModel(MethodVisitor method, TypeDescription dataType) {
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, typeOf(dataType).getInternalName(), "reset",
            Type.getMethodDescriptor(Type.VOID_TYPE), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Invokes {@code DataModel#copyFrom(DataModel)}.
 * @param method the target method//from w ww. j  a va 2  s.  c om
 * @param dataType the data type
 */
public static void copyDataModel(MethodVisitor method, TypeDescription dataType) {
    method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, typeOf(dataType).getInternalName(), "copyFrom",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(dataType)), false);
}

From source file:com.asakusafw.dag.compiler.codegen.AsmUtil.java

License:Apache License

/**
 * Adds {@link Result#add(Object)} method invocation.
 * @param method the current method visitor
 *//*from  www  .jav a2 s  .c o m*/
public static void invokeResultAdd(MethodVisitor method) {
    method.visitMethodInsn(Opcodes.INVOKEINTERFACE, typeOf(RESULT_TYPE).getInternalName(), "add",
            Type.getMethodDescriptor(Type.VOID_TYPE, typeOf(Object.class)), true);
}

From source file:com.asakusafw.dag.compiler.codegen.DataComparatorGenerator.java

License:Apache License

private static void defineCompare(ClassWriter writer, DataModelReference reference,
        List<Group.Ordering> orderings) {
    MethodVisitor v = writer.visitMethod(Opcodes.ACC_PUBLIC, "compare", DESC_COMPARE, null,
            new String[] { typeOf(IOException.class).getInternalName(), });
    LocalVarRef a = new LocalVarRef(Opcodes.ALOAD, 1);
    LocalVarRef b = new LocalVarRef(Opcodes.ALOAD, 2);
    for (Group.Ordering ordering : orderings) {
        PropertyReference property = Invariants
                .requireNonNull(reference.findProperty(ordering.getPropertyName()));

        // int diff = ValueOptionSerDe.compareT({a, b}, {b, a});
        switch (ordering.getDirection()) {
        case ASCENDANT:
            a.load(v);/*  w  w w  . ja v a2 s.  c  o m*/
            b.load(v);
            break;
        case DESCENDANT:
            b.load(v);
            a.load(v);
            break;
        default:
            throw new AssertionError(ordering);
        }
        v.visitMethodInsn(Opcodes.INVOKESTATIC, typeOf(ValueOptionSerDe.class).getInternalName(),
                Invariants.requireNonNull(METHOD_NAMES.get(property.getType())), DESC_COMPARE, false);
        LocalVarRef cmp = putLocalVar(v, Type.INT, 3);
        Label eq = new Label();

        // if (diff != 0) {
        cmp.load(v);
        v.visitJumpInsn(Opcodes.IFEQ, eq);

        // return diff;
        cmp.load(v);
        v.visitInsn(Opcodes.IRETURN);

        // } @ eq
        v.visitLabel(eq);
    }
    getConst(v, 0);
    v.visitInsn(Opcodes.IRETURN);
    v.visitMaxs(0, 0);
    v.visitEnd();
}