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

org.mvel2.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. This opcode 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}).

        if ( coreKlazz == null || needsMethod( coreKlazz, "getCore" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "getCore", "()" + Type.getDescriptor( Object.class ), "()"+BuildUtils.getTypeDescriptor( coreName ), null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD,
                        BuildUtils.getInternalType( wrapperName ),
                        "core",
                        BuildUtils.getTypeDescriptor( coreName ));
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );

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        if ( coreKlazz == null || needsMethod( coreKlazz, "_getDynamicProperties" ) ) {
            {
                mv = cw.visitMethod( ACC_PUBLIC, "_getDynamicProperties", "()" + Type.getDescriptor( Map.class ), "()Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;", null);
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD,
                        BuildUtils.getInternalType( wrapperName ),
                        TraitableBean.MAP_FIELD_NAME,
                        Type.getDescriptor( Map.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );

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                        "(Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;)V",
                        null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.MAP_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( RETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }

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            {
                mv = cw.visitMethod( ACC_PUBLIC, "_getTraitMap", "()" + Type.getDescriptor( Map.class ),
                        "()Ljava/util/Map<Ljava/lang/String;Lorg/drools/factmodel/traits/Thing;>;", null );
                mv.visitCode();
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                Label l0 = new Label();
                mv.visitJumpInsn( IFNULL, l0 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitFieldInsn( GETSTATIC, Type.getInternalName( Collections.class ), "EMPTY_MAP", Type.getDescriptor( Map.class ) );

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                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                Label l0 = new Label();
                mv.visitJumpInsn( IFNULL, l0 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitFieldInsn( GETSTATIC, Type.getInternalName( Collections.class ), "EMPTY_MAP", Type.getDescriptor( Map.class ) );
                Label l1 = new Label();
                mv.visitJumpInsn( IF_ACMPNE, l1 );
                mv.visitLabel( l0 );

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                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                Label l0 = new Label();
                mv.visitJumpInsn( IFNULL, l0 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitFieldInsn( GETSTATIC, Type.getInternalName( Collections.class ), "EMPTY_MAP", Type.getDescriptor( Map.class ) );
                Label l1 = new Label();
                mv.visitJumpInsn( IF_ACMPNE, l1 );
                mv.visitLabel( l0 );


                mv.visitVarInsn( ALOAD, 0 );

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                mv.visitInsn( DUP );
                mv.visitTypeInsn( NEW, Type.getInternalName( HashMap.class ) );
                mv.visitInsn( DUP );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TraitTypeMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitLabel( l1 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );

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                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( HashMap.class ), "<init>", "()V" );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TraitTypeMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitLabel( l1 );
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitFieldInsn( GETFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( ARETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }

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                mv.visitVarInsn( ALOAD, 0 );
                mv.visitTypeInsn( NEW, Type.getInternalName( TraitTypeMap.class ) );
                mv.visitInsn( DUP );
                mv.visitVarInsn( ALOAD, 1 );
                mv.visitMethodInsn( INVOKESPECIAL, Type.getInternalName( TraitTypeMap.class ), "<init>", "(" + Type.getDescriptor( Map.class ) + ")V" );
                mv.visitFieldInsn( PUTFIELD, BuildUtils.getInternalType( wrapperName ), TraitableBean.TRAITSET_FIELD_NAME, Type.getDescriptor( Map.class ) );
                mv.visitInsn( RETURN );
                mv.visitMaxs( 0, 0 );
                mv.visitEnd();
            }
        }

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                    "<init>",
                    "(Ljava/lang/String;I)V" );
            for ( FieldDefinition fld : classDef.getFieldsDefinitions() ) {
                mv.visitVarInsn( ALOAD, 0 );
                mv.visitVarInsn( BuildUtils.varType( fld.getTypeName() ), ofs );
                mv.visitFieldInsn( PUTFIELD,
                        BuildUtils.getInternalType( classDef.getName() ),
                        fld.getName(),
                        BuildUtils.getTypeDescriptor( fld.getTypeName() ) );
                ofs += BuildUtils.sizeOf( fld.getTypeName() );
            }

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