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

org.drools.asm.MethodVisitor.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. Thisopcode is 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}).

            }
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            mv.visitVarInsn( Type.getType( getTypeDescriptor( fieldDef.getTypeName() ) ).getOpcode( Opcodes.ILOAD ),
                             1 );
            mv.visitFieldInsn( Opcodes.PUTFIELD,
                               getInternalType( classDef.getClassName() ),
                               fieldDef.getName(),
                               getTypeDescriptor( fieldDef.getTypeName() ) );


            mv.visitInsn( Opcodes.RETURN );

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                l0 = new Label();
                mv.visitLabel( l0 );
            }
            mv.visitVarInsn( Opcodes.ALOAD,
                             0 );
            mv.visitFieldInsn( Opcodes.GETFIELD,
                               getInternalType( classDef.getClassName() ),
                               fieldDef.getName(),
                               getTypeDescriptor( fieldDef.getTypeName() ) );
            mv.visitInsn( Type.getType( getTypeDescriptor( fieldDef.getTypeName() ) ).getOpcode( Opcodes.IRETURN ) );
            Label l1 = null;

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                        // if attr is primitive 


                        // if ( this.<attr> != other.<booleanAttr> ) return false;
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );


                        mv.visitVarInsn( Opcodes.ALOAD,

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                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );


                        mv.visitVarInsn( Opcodes.ALOAD,
                                         2 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );


                        if ( field.getTypeName().equals( "long" ) ) {

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                        // if ( this.<attr> == null && other.<attr> != null ||
                        //      this.<attr> != null && ! this.<attr>.equals( other.<attr> ) ) return false;
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        Label secondIfPart = new Label();
                        mv.visitJumpInsn( Opcodes.IFNONNULL,

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                                          secondIfPart );


                        // if ( other.objAttr != null ) return false;
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         2 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        Label returnFalse = new Label();
                        mv.visitJumpInsn( Opcodes.IFNONNULL,

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                                          returnFalse );


                        mv.visitLabel( secondIfPart );
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        mv.visitJumpInsn( Opcodes.IFNULL,
                                          goNext );

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                        mv.visitJumpInsn( Opcodes.IFNULL,
                                          goNext );


                        mv.visitVarInsn( Opcodes.ALOAD,
                                         0 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         2 );

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                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        mv.visitVarInsn( Opcodes.ALOAD,
                                         2 );
                        mv.visitFieldInsn( Opcodes.GETFIELD,
                                           getInternalType( classDef.getClassName() ),
                                           field.getName(),
                                           getTypeDescriptor( field.getTypeName() ) );
                        mv.visitMethodInsn( Opcodes.INVOKEVIRTUAL,
                                            getInternalType( field.getTypeName() ),

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                                     1 );
                    mv.visitInsn( Opcodes.IMUL );


                    mv.visitVarInsn( Opcodes.ALOAD,
                                     0 );
                    mv.visitFieldInsn( Opcodes.GETFIELD,
                                       getInternalType( classDef.getClassName() ),
                                       field.getName(),
                                       getTypeDescriptor( field.getTypeName() ) );


                    if ( "boolean".equals( field.getTypeName() ) ) {

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