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json: make JSON_VARIANT_ARRAY/OBJECT_FOREACH() nestable

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This commit is contained in:
Yu Watanabe 2021-05-14 09:05:20 +09:00
parent 484f22dd66
commit fec7a9e0ac
1 changed files with 17 additions and 13 deletions
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30
src/shared/json.h
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@ -146,22 +146,26 @@ struct json_variant_foreach_state {
size_t idx;
};
#define _JSON_VARIANT_ARRAY_FOREACH(i, v, state) \
for (struct json_variant_foreach_state state = { (v), 0 }; \
json_variant_is_array(state.variant) && \
state.idx < json_variant_elements(state.variant) && \
({ i = json_variant_by_index(state.variant, state.idx); \
true; }); \
state.idx++)
#define JSON_VARIANT_ARRAY_FOREACH(i, v) \
for (struct json_variant_foreach_state _state = { (v), 0 }; \
json_variant_is_array(_state.variant) && \
_state.idx < json_variant_elements(_state.variant) && \
({ i = json_variant_by_index(_state.variant, _state.idx); \
true; }); \
_state.idx++)
_JSON_VARIANT_ARRAY_FOREACH(i, v, UNIQ_T(state, UNIQ))
#define JSON_VARIANT_OBJECT_FOREACH(k, e, v) \
for (struct json_variant_foreach_state _state = { (v), 0 }; \
json_variant_is_object(_state.variant) && \
_state.idx < json_variant_elements(_state.variant) && \
({ k = json_variant_string(json_variant_by_index(_state.variant, _state.idx)); \
e = json_variant_by_index(_state.variant, _state.idx + 1); \
#define _JSON_VARIANT_OBJECT_FOREACH(k, e, v, state) \
for (struct json_variant_foreach_state state = { (v), 0 }; \
json_variant_is_object(state.variant) && \
state.idx < json_variant_elements(state.variant) && \
({ k = json_variant_string(json_variant_by_index(state.variant, state.idx)); \
e = json_variant_by_index(state.variant, state.idx + 1); \
true; }); \
_state.idx += 2)
state.idx += 2)
#define JSON_VARIANT_OBJECT_FOREACH(k, e, v) \
_JSON_VARIANT_OBJECT_FOREACH(k, e, v, UNIQ_T(state, UNIQ))
int json_variant_get_source(JsonVariant *v, const char **ret_source, unsigned *ret_line, unsigned *ret_column);