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/*
** upb::json::Parser (upb_json_parser)
**
** Parses JSON according to a specific schema.
** Support for parsing arbitrary JSON (schema-less) will be added later.
*/
#ifndef UPB_JSON_PARSER_H_
#define UPB_JSON_PARSER_H_
#include "upb/sink.h"
#ifdef __cplusplus
namespace upb {
namespace json {
class Parser;
class ParserMethod;
} /* namespace json */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::json::Parser, upb_json_parser)
UPB_DECLARE_DERIVED_TYPE(upb::json::ParserMethod, upb::RefCounted,
upb_json_parsermethod, upb_refcounted)
/* upb::json::Parser **********************************************************/
/* Preallocation hint: parser won't allocate more bytes than this when first
* constructed. This hint may be an overestimate for some build configurations.
* But if the parser library is upgraded without recompiling the application,
* it may be an underestimate. */
#define UPB_JSON_PARSER_SIZE 5712
#ifdef __cplusplus
/* Parses an incoming BytesStream, pushing the results to the destination
* sink. */
class upb::json::Parser {
public:
static Parser* Create(Environment* env, const ParserMethod* method,
const SymbolTable* symtab,
Sink* output, bool ignore_json_unknown);
BytesSink* input();
private:
UPB_DISALLOW_POD_OPS(Parser, upb::json::Parser)
};
class upb::json::ParserMethod {
public:
/* Include base methods from upb::ReferenceCounted. */
UPB_REFCOUNTED_CPPMETHODS
/* Returns handlers for parsing according to the specified schema. */
static reffed_ptr<const ParserMethod> New(const upb::MessageDef* md);
/* The destination handlers that are statically bound to this method.
* This method is only capable of outputting to a sink that uses these
* handlers. */
const Handlers* dest_handlers() const;
/* The input handlers for this decoder method. */
const BytesHandler* input_handler() const;
private:
UPB_DISALLOW_POD_OPS(ParserMethod, upb::json::ParserMethod)
};
#endif
UPB_BEGIN_EXTERN_C
upb_json_parser* upb_json_parser_create(upb_env* e,
const upb_json_parsermethod* m,
const upb_symtab* symtab,
upb_sink* output,
bool ignore_json_unknown);
upb_bytessink *upb_json_parser_input(upb_json_parser *p);
upb_json_parsermethod* upb_json_parsermethod_new(const upb_msgdef* md,
const void* owner);
const upb_handlers *upb_json_parsermethod_desthandlers(
const upb_json_parsermethod *m);
const upb_byteshandler *upb_json_parsermethod_inputhandler(
const upb_json_parsermethod *m);
/* Include refcounted methods like upb_json_parsermethod_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_json_parsermethod, upb_json_parsermethod_upcast)
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
namespace json {
inline Parser* Parser::Create(Environment* env, const ParserMethod* method,
const SymbolTable* symtab,
Sink* output, bool ignore_json_unknown) {
return upb_json_parser_create(
env, method, symtab, output, ignore_json_unknown);
}
inline BytesSink* Parser::input() {
return upb_json_parser_input(this);
}
inline const Handlers* ParserMethod::dest_handlers() const {
return upb_json_parsermethod_desthandlers(this);
}
inline const BytesHandler* ParserMethod::input_handler() const {
return upb_json_parsermethod_inputhandler(this);
}
/* static */
inline reffed_ptr<const ParserMethod> ParserMethod::New(
const MessageDef* md) {
const upb_json_parsermethod *m = upb_json_parsermethod_new(md, &m);
return reffed_ptr<const ParserMethod>(m, &m);
}
} /* namespace json */
} /* namespace upb */
#endif
#endif /* UPB_JSON_PARSER_H_ */
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