diff options
Diffstat (limited to 'core/upb.h')
| -rw-r--r-- | core/upb.h | 98 |
1 files changed, 88 insertions, 10 deletions
@@ -80,24 +80,16 @@ enum upb_wire_type { typedef uint8_t upb_wire_type_t; -// Value type as defined in a .proto file. eg. string, int32, etc. The +// Type of a field as defined in a .proto file. eg. string, int32, etc. The // integers that represent this are defined by descriptor.proto. Note that // descriptor.proto reserves "0" for errors, and we use it to represent // exceptional circumstances. -typedef uint8_t upb_field_type_t; +typedef uint8_t upb_fieldtype_t; // For referencing the type constants tersely. #define UPB_TYPE(type) GOOGLE_PROTOBUF_FIELDDESCRIPTORPROTO_TYPE_ ## type #define UPB_LABEL(type) GOOGLE_PROTOBUF_FIELDDESCRIPTORPROTO_LABEL_ ## type -INLINE bool upb_issubmsgtype(upb_field_type_t type) { - return type == UPB_TYPE(GROUP) || type == UPB_TYPE(MESSAGE); -} - -INLINE bool upb_isstringtype(upb_field_type_t type) { - return type == UPB_TYPE(STRING) || type == UPB_TYPE(BYTES); -} - // Info for a given field type. typedef struct { uint8_t align; @@ -129,6 +121,10 @@ typedef union { struct _upb_string; typedef struct _upb_string upb_string; +struct _upb_array; +typedef struct _upb_array upb_array; +struct _upb_msg; +typedef struct _upb_msg upb_msg; typedef uint32_t upb_strlen_t; @@ -142,6 +138,11 @@ typedef union { uint32_t uint32; uint64_t uint64; bool _bool; + upb_string *str; + upb_msg *msg; + upb_array *arr; + upb_atomic_refcount_t *refcount; + void *_void; } upb_value; // A pointer to a .proto value. The owner must have an out-of-band way of @@ -155,13 +156,90 @@ typedef union { uint32_t *uint32; uint64_t *uint64; bool *_bool; + upb_string **str; + upb_msg **msg; + upb_array **arr; + void *_void; } upb_valueptr; +// The type of a upb_value. This is like a upb_fieldtype_t, but adds the +// constant UPB_VALUETYPE_ARRAY to represent an array. +typedef uint8_t upb_valuetype_t; +#define UPB_VALUETYPE_ARRAY 32 + INLINE upb_valueptr upb_value_addrof(upb_value *val) { upb_valueptr ptr = {&val->_double}; return ptr; } +// Converts upb_value_ptr -> upb_value by reading from the pointer. We need to +// know the value type to perform this operation, because we need to know how +// much memory to copy. +INLINE upb_value upb_value_read(upb_valueptr ptr, upb_fieldtype_t ft) { + upb_value val; + +#define CASE(t, member_name) \ + case UPB_TYPE(t): val.member_name = *ptr.member_name; break; + + switch(ft) { + CASE(DOUBLE, _double) + CASE(FLOAT, _float) + CASE(INT32, int32) + CASE(INT64, int64) + CASE(UINT32, uint32) + CASE(UINT64, uint64) + CASE(SINT32, int32) + CASE(SINT64, int64) + CASE(FIXED32, uint32) + CASE(FIXED64, uint64) + CASE(SFIXED32, int32) + CASE(SFIXED64, int64) + CASE(BOOL, _bool) + CASE(ENUM, int32) + CASE(STRING, str) + CASE(BYTES, str) + CASE(MESSAGE, msg) + CASE(GROUP, msg) + default: break; + } + return val; + +#undef CASE +} + +// Writes a upb_value to a upb_value_ptr location. We need to know the value +// type to perform this operation, because we need to know how much memory to +// copy. +INLINE void upb_value_write(upb_valueptr ptr, upb_value val, + upb_fieldtype_t ft) { +#define CASE(t, member_name) \ + case UPB_TYPE(t): *ptr.member_name = val.member_name; break; + + switch(ft) { + CASE(DOUBLE, _double) + CASE(FLOAT, _float) + CASE(INT32, int32) + CASE(INT64, int64) + CASE(UINT32, uint32) + CASE(UINT64, uint64) + CASE(SINT32, int32) + CASE(SINT64, int64) + CASE(FIXED32, uint32) + CASE(FIXED64, uint64) + CASE(SFIXED32, int32) + CASE(SFIXED64, int64) + CASE(BOOL, _bool) + CASE(ENUM, int32) + CASE(STRING, str) + CASE(BYTES, str) + CASE(MESSAGE, msg) + CASE(GROUP, msg) + default: break; + } + +#undef CASE +} + // Status codes used as a return value. Codes >0 are not fatal and can be // resumed. enum upb_status_code { |