Example usage for org.objectweb.asm.commons LocalVariablesSorter visitInsn

Introduction

In this page you can find the example usage for org.objectweb.asm.commons LocalVariablesSorter visitInsn.

Prototype

public void visitInsn(final int opcode) 

Source Link

Document

Visits a zero operand instruction.

Usage

From source file:rubah.bytecode.transformers.AddTraverseMethod.java

License:Open Source License

private void generateTraverseMethod() {
    LocalVariablesSorter mv = new LocalVariablesSorter(TRAVERSE_METHOD_ACC_FLAGS, TRAVERSE_METHOD_DESC,
            this.visitMethod(this.getTraverseMethodAccess(), this.getTraverseMethodName(), TRAVERSE_METHOD_DESC,
                    null, null));//from   ww  w.  ja  va  2s  . co  m
    mv.visitCode();

    if (isAllowed(this.thisClass.getFqn())) {
        this.generateTraverseMethodPreamble(mv);

        if (!this.fields.isEmpty()) {
            for (Pair<String, String> field : this.fields) {
                this.generateFieldAccess(mv, field);
            }
        }
    }
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

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From source file:rubah.bytecode.transformers.AddTraverseMethod.java

License:Open Source License

protected void generateFieldAccess(LocalVariablesSorter mv, Pair<String, String> field) {
    Type fieldType = Type.getType(field.getValue1());

    if (!isAllowed(fieldType.getClassName())) {
        return;//  w w  w.  j  a  v  a2 s. c  o m
    }

    this.getFieldOwner(mv);
    mv.visitInsn(DUP);

    mv.visitFieldInsn(GETFIELD, this.thisClass.getASMType().getInternalName(), field.getValue0(),
            field.getValue1());
    mv.visitMethodInsn(INVOKESTATIC, REGISTER_METHOD_OWNER_NAME, REGISTER_METHOD_NAME,
            REGISTER_METHOD_SIMPLE_DESC, false);
    if (this.version != null) {
        mv.visitTypeInsn(CHECKCAST, this.version.eraseUpdatableType(this.namespace.getClass(fieldType))
                .getASMType().getInternalName());
    } else {
        mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
    }
    mv.visitFieldInsn(PUTFIELD, this.thisClass.getASMType().getInternalName(), field.getValue0(),
            field.getValue1());
}

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