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

org.drools.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.
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}.

                if ( field.isKey() ) {


                    // result = result * 31 + <attr_hash>
                    mv.visitVarInsn( Opcodes.ILOAD,
                                     1 );
                    mv.visitIntInsn( Opcodes.BIPUSH,
                                     31 );
                    mv.visitVarInsn( Opcodes.ILOAD,
                                     1 );
                    mv.visitInsn( Opcodes.IMUL );

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                    if ( "boolean".equals( field.getTypeName() ) ) {
                        // attr_hash ::== <boolean_attr> ? 1231 : 1237;
                        Label blabel1 = new Label();
                        mv.visitJumpInsn( Opcodes.IFEQ,
                                          blabel1 );
                        mv.visitIntInsn( Opcodes.SIPUSH,
                                         1231 );
                        Label blabel2 = new Label();
                        mv.visitJumpInsn( Opcodes.GOTO,
                                          blabel2 );
                        mv.visitLabel( blabel1 );

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                                         1231 );
                        Label blabel2 = new Label();
                        mv.visitJumpInsn( Opcodes.GOTO,
                                          blabel2 );
                        mv.visitLabel( blabel1 );
                        mv.visitIntInsn( Opcodes.SIPUSH,
                                         1237 );
                        mv.visitLabel( blabel2 );
                    } else if ( "long".equals( field.getTypeName() ) ) {
                        // attr_hash ::== (int) (longAttr ^ (longAttr >>> 32))
                        mv.visitVarInsn( Opcodes.ALOAD,

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                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        mv.visitIntInsn( Opcodes.BIPUSH,
                                         32 );
                        mv.visitInsn( Opcodes.LUSHR );
                        mv.visitInsn( Opcodes.LXOR );
                        mv.visitInsn( Opcodes.L2I );

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                        mv.visitMethodInsn( Opcodes.INVOKESTATIC,
                                            Type.getInternalName( Double.class ),
                                            "doubleToLongBits",
                                            "(D)J" );
                        mv.visitInsn( Opcodes.DUP2 );
                        mv.visitIntInsn( Opcodes.BIPUSH,
                                         32 );
                        mv.visitInsn( Opcodes.LUSHR );
                        mv.visitInsn( Opcodes.LXOR );
                        mv.visitInsn( Opcodes.L2I );
                    } else if ( !isPrimitive( field.getTypeName() ) ) {

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