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S_DONE, |
MAX_STATES, |
}; |
/* |
* Tokens that change state. |
*/ |
enum TokenTypes { |
T_STRING, |
T_OTHER, |
T_COMMA, |
T_COLON, |
T_OPEN_DICT, |
T_OPEN_LIST, |
T_CLOSE_DICT, |
T_CLOSE_LIST, |
MAX_TOKENS |
}; |
/* |
* 4-byte ints for small string tokens. |
*/ |
#define C_NULL FOURCC('n','u','l','l') |
#define C_TRUE FOURCC('t','r','u','e') |
#define C_ALSE FOURCC('a','l','s','e') |
/* |
* Signature for render functions. |
*/ |
typedef bool (*render_func_t)(struct RenderState *rs, struct JsonValue *jv); |
static bool render_any(struct RenderState *rs, struct JsonValue *jv); |
/* |
* Header manipulation |
*/ |
static inline enum JsonValueType get_type(struct JsonValue *jv) |
{ |
return jv->v_next_and_type & TYPE_MASK; |
} |
static inline bool has_type(struct JsonValue *jv, enum JsonValueType type) |
{ |
if (!jv) |
return false; |
return get_type(jv) == type; |
} |
static inline struct JsonValue *get_next(struct JsonValue *jv) |
{ |
return (struct JsonValue *)(jv->v_next_and_type & ~(uintptr_t)TYPE_MASK); |
} |
static inline void set_next(struct JsonValue *jv, struct JsonValue *next) |
{ |
jv->v_next_and_type = (uintptr_t)next | get_type(jv); |
} |
static inline bool is_unattached(struct JsonValue *jv) |
{ |
return get_next(jv) == UNATTACHED; |
} |
static inline void *get_extra(struct JsonValue *jv) |
{ |
return (void *)(jv + 1); |
} |
static inline char *get_cstring(struct JsonValue *jv) |
{ |
enum JsonValueType type = get_type(jv); |
if (type != JSON_STRING) |
return NULL; |
return get_extra(jv); |
} |
/* |
* Collection header manipulation. |
*/ |
static inline struct JsonContainer *get_container(struct JsonValue *jv) |
{ |
enum JsonValueType type = get_type(jv); |
if (type != JSON_DICT && type != JSON_LIST) |
return NULL; |
return get_extra(jv); |
} |
static inline void set_parent(struct JsonValue *jv, struct JsonValue *parent) |
{ |
struct JsonContainer *c = get_container(jv); |
if (c) |
c->c_parent = parent; |
} |
static inline struct JsonContext *get_context(struct JsonValue *jv) |
{ |
struct JsonContainer *c = get_container(jv); |