Examples of org.mvel2.asm.MethodVisitor.visitIntInsn()

org.mvel2.asm.MethodVisitor.visitIntInsn()
Visits an instruction with a single int operand. @param opcode the opcode of the instruction to be visited. This opcode is either BIPUSH, SIPUSH or NEWARRAY. @param operand the operand of the instruction to be visited.
When opcode 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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                        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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                        mv.visitIntInsn( BIPUSH, 31 );
                        mv.visitVarInsn( ILOAD, 1 );
                        mv.visitInsn( IMUL );
                        mv.visitVarInsn( LLOAD, 2 );
                        mv.visitVarInsn( LLOAD, 2 );
                        mv.visitIntInsn( BIPUSH, 32 );
                        mv.visitInsn( LUSHR );
                        mv.visitInsn( LXOR );
                        mv.visitInsn( L2I );
                        mv.visitInsn( IADD );
                        mv.visitVarInsn( ISTORE, 1 );

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                        x = Math.max( 6, x );
                        y = Math.max( 4, y );


                    } else if ( "boolean".equals( 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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                        mv.visitInsn( IADD );
                        mv.visitVarInsn( ISTORE, 1 );


                    } else if ( "float".equals( 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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                        x = Math.max( 3, x );


                    }  else if ( "long".equals( 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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