Examples of org.ow2.asm.MethodVisitor.visitIntInsn()

org.ow2.asm.MethodVisitor.visitIntInsn()
Visits an instruction with a single int operand. @param opcode the opcode of the instruction to be visited. This opcode iseither BIPUSH, SIPUSH or NEWARRAY. @param operand the operand of the instruction to be visited.
Whenopcode is BIPUSH, operand value should be between Byte.MIN_VALUE and Byte.MAX_VALUE.
When opcode is SIPUSH, operand value should be between Short.MIN_VALUE and Short.MAX_VALUE.
When opcode is NEWARRAY, operand value should be one of {@link Opcodes#T_BOOLEAN}, {@link Opcodes#T_CHAR}, {@link Opcodes#T_FLOAT}, {@link Opcodes#T_DOUBLE}, {@link Opcodes#T_BYTE}, {@link Opcodes#T_SHORT}, {@link Opcodes#T_INT} or {@link Opcodes#T_LONG}.

        MethodVisitor mv;


        {
            mv = cw.visitMethod( ACC_PUBLIC, "hashCode", "()I", null, null );
            mv.visitCode();
            mv.visitIntInsn( BIPUSH, 31 );
            mv.visitVarInsn( ISTORE, 1 );


            int count = 0;
            int x = 2;
            int y = 2;

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                if ( field.isKey() ) {
                    count++;


                    if ( ! BuildUtils.isPrimitive( field.getTypeName() ) ) {


                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + BuildUtils.getTypeDescriptor( field.getTypeName() ) );

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                        mv.visitJumpInsn( GOTO, l3 );
                        mv.visitLabel( l2 );
                        mv.visitInsn( LCONST_0 );
                        mv.visitLabel( l3 );
                        mv.visitVarInsn( LSTORE, 2 );
                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( LLOAD, 2 );
                        mv.visitVarInsn( LLOAD, 2 );
                        mv.visitIntInsn( BIPUSH, 32 );

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        MethodVisitor mv;


        {
            mv = cw.visitMethod( ACC_PUBLIC, "hashCode", "()I", null, null );
            mv.visitCode();
            mv.visitIntInsn( BIPUSH, 31 );
            mv.visitVarInsn( ISTORE, 1 );


            int count = 0;
            int x = 2;
            int y = 2;

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                if ( field.isKey() ) {
                    count++;


                    if ( ! BuildUtils.isPrimitive( field.getTypeName() ) ) {


                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( ALOAD, 0 );
                        mv.visitMethodInsn( INVOKEVIRTUAL, proxyType, BuildUtils.getterName( field.getName(), field.getTypeName() ), 
                                            "()" + Type.getDescriptor( field.getType() ) );

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    public void testIllegalByteInsnOperand() {
        MethodVisitor mv = new CheckMethodAdapter(new EmptyVisitor());
        mv.visitCode();
        try {
            mv.visitIntInsn(BIPUSH, Integer.MAX_VALUE);
            fail();
        } catch (Exception e) {
        }
    }

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    public void testIllegalShortInsnOperand() {
        MethodVisitor mv = new CheckMethodAdapter(new EmptyVisitor());
        mv.visitCode();
        try {
            mv.visitIntInsn(SIPUSH, Integer.MAX_VALUE);
            fail();
        } catch (Exception e) {
        }
    }

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    public void testIllegalIntInsnOperand() {
        MethodVisitor mv = new CheckMethodAdapter(new EmptyVisitor());
        mv.visitCode();
        try {
            mv.visitIntInsn(NEWARRAY, 0);
            fail();
        } catch (Exception e) {
        }
    }

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        for (int i = 1; i < 300; ++i) {
            mv.visitVarInsn(ILOAD, i);
            if (i <= 5) {
                mv.visitInsn(ICONST_0 + i);
            } else if (i <= Byte.MAX_VALUE) {
                mv.visitIntInsn(BIPUSH, i);
            } else {
                mv.visitIntInsn(SIPUSH, i);
            }
            mv.visitInsn(IADD);
            mv.visitVarInsn(ISTORE, i + 1);

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            if (i <= 5) {
                mv.visitInsn(ICONST_0 + i);
            } else if (i <= Byte.MAX_VALUE) {
                mv.visitIntInsn(BIPUSH, i);
            } else {
                mv.visitIntInsn(SIPUSH, i);
            }
            mv.visitInsn(IADD);
            mv.visitVarInsn(ISTORE, i + 1);
        }
        mv.visitInsn(ICONST_0);

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