Examples of org.objectweb.asm.CodeVisitor.visitFieldInsn()

org.objectweb.asm.CodeVisitor.visitFieldInsn()
Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object. @param opcode the opcode of the type instruction to be visited. This opcodeis either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. @param owner the internal name of the field's owner class (see {@link Type#getInternalName() getInternalName}). @param name the field's name. @param desc the field's descriptor (see {@link Type Type}).

        }


        // getMetaData
        {
            cv = cw.visitMethod(ACC_PUBLIC, GET_META_DATA_METHOD_NAME, GET_META_DATA_METHOD_SIGNATURE, null, null);
            cv.visitFieldInsn(GETSTATIC, joinPointClassName, META_DATA_FIELD_NAME, MAP_CLASS_SIGNATURE);
            cv.visitVarInsn(ALOAD, 1);
            cv.visitMethodInsn(INVOKEINTERFACE, MAP_CLASS_NAME, GET_METHOD_NAME, GET_METHOD_SIGNATURE);
            cv.visitInsn(ARETURN);
            cv.visitMaxs(0, 0);
        }

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            cv = cw.visitMethod(ACC_PUBLIC,
                    GET_TARGET_METHOD_NAME,
                    NO_PARAMS_SIGNATURE + OBJECT_CLASS_SIGNATURE, //calleeClassSignature,
                    null, null);
            cv.visitVarInsn(ALOAD, 0);
            cv.visitFieldInsn(GETFIELD, joinPointClassName, CALLEE_INSTANCE_FIELD_NAME, calleeClassSignature);
            cv.visitInsn(ARETURN);
            cv.visitMaxs(0, 0);
        }


        // getThis

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            cv = cw.visitMethod(ACC_PUBLIC,
                    GET_THIS_METHOD_NAME,
                    NO_PARAMS_SIGNATURE + callerClassSignature,
                    null, null);
            cv.visitVarInsn(ALOAD, 0);
            cv.visitFieldInsn(GETFIELD, joinPointClassName, CALLER_INSTANCE_FIELD_NAME, callerClassSignature);
            cv.visitInsn(ARETURN);
            cv.visitMaxs(0, 0);
        }


        // getTargetClass

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                    cw.visitMethod(ACC_PUBLIC,
                            GET_TARGET_CLASS_METHOD_NAME,
                            GET_TARGET_CLASS_METHOD_SIGNATURE,
                            null,
                            null);
            cv.visitFieldInsn(GETSTATIC, joinPointClassName, TARGET_CLASS_FIELD_NAME, CLASS_CLASS_SIGNATURE);
            cv.visitInsn(ARETURN);
            cv.visitMaxs(0, 0);
        }


        // getRtti

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        CodeVisitor cv = m_cw.visitMethod(ACC_PUBLIC, GET_RTTI_METHOD_NAME, GET_RTTI_METHOD_SIGNATURE, null, null);


        // new FieldRttiImpl( .. )
        cv.visitTypeInsn(NEW, FIELD_RTTI_IMPL_CLASS_NAME);
        cv.visitInsn(DUP);
        cv.visitFieldInsn(GETSTATIC, m_joinPointClassName, SIGNATURE_FIELD_NAME, FIELD_SIGNATURE_IMPL_CLASS_SIGNATURE);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, m_joinPointClassName, CALLER_INSTANCE_FIELD_NAME, m_callerClassSignature);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, m_joinPointClassName, CALLEE_INSTANCE_FIELD_NAME, m_calleeClassSignature);
        cv.visitMethodInsn(

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        // new FieldRttiImpl( .. )
        cv.visitTypeInsn(NEW, FIELD_RTTI_IMPL_CLASS_NAME);
        cv.visitInsn(DUP);
        cv.visitFieldInsn(GETSTATIC, m_joinPointClassName, SIGNATURE_FIELD_NAME, FIELD_SIGNATURE_IMPL_CLASS_SIGNATURE);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, m_joinPointClassName, CALLER_INSTANCE_FIELD_NAME, m_callerClassSignature);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, m_joinPointClassName, CALLEE_INSTANCE_FIELD_NAME, m_calleeClassSignature);
        cv.visitMethodInsn(
                INVOKESPECIAL, FIELD_RTTI_IMPL_CLASS_NAME, INIT_METHOD_NAME, FIELD_RTTI_IMPL_INIT_SIGNATURE
        );

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        cv.visitInsn(DUP);
        cv.visitFieldInsn(GETSTATIC, m_joinPointClassName, SIGNATURE_FIELD_NAME, FIELD_SIGNATURE_IMPL_CLASS_SIGNATURE);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, m_joinPointClassName, CALLER_INSTANCE_FIELD_NAME, m_callerClassSignature);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, m_joinPointClassName, CALLEE_INSTANCE_FIELD_NAME, m_calleeClassSignature);
        cv.visitMethodInsn(
                INVOKESPECIAL, FIELD_RTTI_IMPL_CLASS_NAME, INIT_METHOD_NAME, FIELD_RTTI_IMPL_INIT_SIGNATURE
        );


        // set the value

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        // set the value
        cv.visitInsn(DUP);
        if (AsmHelper.isPrimitive(m_returnType)) {
            AsmHelper.prepareWrappingOfPrimitiveType(cv, m_returnType);
            cv.visitVarInsn(ALOAD, 0);
            cv.visitFieldInsn(GETFIELD, m_joinPointClassName, RETURN_VALUE_FIELD_NAME, m_returnType.getDescriptor());
            AsmHelper.wrapPrimitiveType(cv, m_returnType);
        } else {
            cv.visitVarInsn(ALOAD, 0);
            cv.visitFieldInsn(GETFIELD, m_joinPointClassName, RETURN_VALUE_FIELD_NAME, m_returnType.getDescriptor());
        }

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            cv.visitVarInsn(ALOAD, 0);
            cv.visitFieldInsn(GETFIELD, m_joinPointClassName, RETURN_VALUE_FIELD_NAME, m_returnType.getDescriptor());
            AsmHelper.wrapPrimitiveType(cv, m_returnType);
        } else {
            cv.visitVarInsn(ALOAD, 0);
            cv.visitFieldInsn(GETFIELD, m_joinPointClassName, RETURN_VALUE_FIELD_NAME, m_returnType.getDescriptor());
        }
        cv.visitMethodInsn(
                INVOKEVIRTUAL, FIELD_RTTI_IMPL_CLASS_NAME, SET_RETURN_VALUE_METHOD_NAME,
                SET_RETURN_VALUE_METHOD_SIGNATURE
        );

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                GET_SIGNATURE_METHOD_NAME,
                GET_SIGNATURE_METHOD_SIGNATURE,
                null,
                null
        );
        cv.visitFieldInsn(
                GETSTATIC, m_joinPointClassName,
                SIGNATURE_FIELD_NAME, FIELD_SIGNATURE_IMPL_CLASS_SIGNATURE
        );
        cv.visitInsn(ARETURN);
        cv.visitMaxs(0, 0);

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