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nix_api_value: add nix_get_attr_name_byidx get attr names without forcing

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Yorick van Pelt 2023-08-07 15:10:04 +02:00 • committed by José Luis Lafuente
parent 9cccb8bae0
commit e891aac2e4
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16
src/libexpr/nix_api_value.h
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@ -207,6 +207,8 @@ bool nix_has_attr_byname(nix_c_context *context, const Value *value,
State *state, const char *name);
/** @brief Get an attribute by index in the sorted bindings
*
* Also gives you the name.
*
* Owned by the GC. Use nix_gc_decref when you're done with the pointer
* @param[out] context Optional, stores error information
@ -218,6 +220,20 @@ bool nix_has_attr_byname(nix_c_context *context, const Value *value,
*/
Value *nix_get_attr_byidx(nix_c_context *context, const Value *value,
State *state, unsigned int i, const char **name);
/** @brief Get an attribute name by index in the sorted bindings
*
* Useful when you want the name but want to avoid evaluation.
*
* Owned by the nix State
* @param[out] context Optional, stores error information
* @param[in] value Nix value to inspect
* @param[in] state nix evaluator state
* @param[in] i attribute index
* @return name, NULL in case of errors
*/
const char *nix_get_attr_name_byidx(nix_c_context *context, const Value *value,
State *state, unsigned int i);
/**@}*/
/** @name Setters
*/