Tags: firewood/mcrouter
Tags
Add a field visitor interface to the generated structures
Summary:
Support visitor interface in generated structures and add method for converting Carbon structs into folly::dynamic.
The interface of visitors:
class Visitor {
/**
* Called when we enter a mixin.
*
* param id mixin id
* param mixinName name of mixin class
* param t value of mixin
* return false iff we should skip recursive processing of this mixin.
*/
template <class T>
bool enterMixin(uint16_t id, folly::StringPiece mixinName, const T& t);
/**
* Called when we exit from mixin.
*
* return false iff we should stop further processing of current struct and
* should go one level up.
*/
bool leaveMixin();
/**
* Called on each field of Carbon struct.
*
* param id field id
* param fieldName name of field
* param t value of the field
* return false iff we should skip all further fields in the current struct and go one level up.
*/
template <class T>
bool visitField(uint16_t id, folly::StringPiece fieldName, const T& t);
};
Reviewed By: jmswen
Differential Revision: D3814414
fbshipit-source-id: 0cae105fa4f5547a173ee02242b909275ea6aaf3
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