Examples of com.facebook.swift.codec.internal.compiler.byteCode.LocalVariableDefinition

Package com.facebook.swift.codec.internal.compiler.byteCode

Examples of com.facebook.swift.codec.internal.compiler.byteCode.LocalVariableDefinition

com.facebook.swift.codec.internal.compiler.byteCode.LocalVariableDefinition


        // read all of the data in to local variables
        Map<Short, LocalVariableDefinition> structData = readFieldValues(read);


        // build the struct
        LocalVariableDefinition result = buildStruct(read, structData);


        // push instance on stack, and return it
        read.loadVariable(result).retObject();


        classDefinition.addMethod(read);

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    /**
     * Defines the code to read all of the data from the protocol into local variables.
     */
    private Map<Short, LocalVariableDefinition> readFieldValues(MethodDefinition read)
    {
        LocalVariableDefinition protocol = read.getLocalVariable("reader");


        // declare and init local variables here
        Map<Short, LocalVariableDefinition> structData = new TreeMap<>();
        for (ThriftFieldMetadata field : metadata.getFields(FieldKind.THRIFT_FIELD)) {
            LocalVariableDefinition variable = read.addInitializedLocalVariable(
                    toParameterizedType(field.getThriftType()),
                    "f_" + field.getName()
            );
            structData.put(field.getId(), variable);
        }

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     * Defines the code to build the struct instance using the data in the local variables.
     */
    private LocalVariableDefinition buildStruct(MethodDefinition read, Map<Short, LocalVariableDefinition> structData)
    {
        // construct the instance and store it in the instance local variable
        LocalVariableDefinition instance = constructStructInstance(read, structData);


        // inject fields
        injectStructFields(read, instance, structData);


        // inject methods

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     * Defines the code to construct the struct (or builder) instance and stores it in a local
     * variable.
     */
    private LocalVariableDefinition constructStructInstance(MethodDefinition read, Map<Short, LocalVariableDefinition> structData)
    {
        LocalVariableDefinition instance = read.addLocalVariable(structType, "instance");


        // create the new instance (or builder)
        if (metadata.getBuilderClass() == null) {
            read.newObject(structType).dup();
        }

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        // read all of the data in to local variables
        Map<Short, LocalVariableDefinition> unionData = readSingleFieldValue(read);


        // build the struct
        LocalVariableDefinition result = buildUnion(read, unionData);


        // push instance on stack, and return it
        read.loadVariable(result).retObject();


        classDefinition.addMethod(read);

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    /**
     * Defines the code to read all of the data from the protocol into local variables.
     */
    private Map<Short, LocalVariableDefinition> readSingleFieldValue(MethodDefinition read)
    {
        LocalVariableDefinition protocol = read.getLocalVariable("reader");


        // declare and init local variables here
        Map<Short, LocalVariableDefinition> unionData = new TreeMap<>();
        for (ThriftFieldMetadata field : metadata.getFields(THRIFT_FIELD)) {
            LocalVariableDefinition variable = read.addInitializedLocalVariable(
                    toParameterizedType(field.getThriftType()),
                    "f_" + field.getName()
            );
            unionData.put(field.getId(), variable);
        }

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     * Defines the code to build the struct instance using the data in the local variables.
     */
    private LocalVariableDefinition buildUnion(MethodDefinition read, Map<Short, LocalVariableDefinition> unionData)
    {
        // construct the instance and store it in the instance local variable
        LocalVariableDefinition instance = constructUnionInstance(read);


        // switch (fieldId)
        read.loadVariable("fieldId");


        List<CaseStatement> cases = new ArrayList<>();

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     * Defines the code to construct the union (or builder) instance and stores it in a local
     * variable.
     */
    private LocalVariableDefinition constructUnionInstance(MethodDefinition read)
    {
        LocalVariableDefinition instance = read.addLocalVariable(structType, "instance");


        // create the new instance (or builder)
        if (metadata.getBuilderClass() == null) {
            read.newObject(structType).dup();
        }

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        write.dup();
        write.loadVariable("protocol");
        write.invokeConstructor(type(TProtocolWriter.class), type(TProtocol.class));
        write.storeVariable("writer");


        LocalVariableDefinition protocol = write.getLocalVariable("writer");


        // protocol.writeStructBegin("bonk");
        write.loadVariable(protocol)
                .loadConstant(metadata.getStructName())
                .invokeVirtual(TProtocolWriter.class, "writeStructBegin", void.class, String.class);

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        write.dup();
        write.loadVariable("protocol");
        write.invokeConstructor(type(TProtocolWriter.class), type(TProtocol.class));
        write.storeVariable("writer");


        LocalVariableDefinition protocol = write.getLocalVariable("writer");


        // protocol.writeStructBegin("bonk");
        write.loadVariable(protocol)
            .loadConstant(metadata.getStructName())
            .invokeVirtual(TProtocolWriter.class, "writeStructBegin", void.class, String.class);

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