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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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2 changed files with 28 additions and 0 deletions
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12
src/libexpr/nix_api_value.cc
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@ -266,6 +266,18 @@ Value *nix_get_attr_byidx(nix_c_context *context, const Value *value,
NIXC_CATCH_ERRS_NULL
}
const char *nix_get_attr_name_byidx(nix_c_context *context, const Value *value,
State *state, unsigned int i) {
if (context)
context->last_err_code = NIX_OK;
try {
auto &v = check_value_not_null(value);
const nix::Attr &a = (*v.attrs)[i];
return ((const std::string &)(state->state.symbols[a.name])).c_str();
}
NIXC_CATCH_ERRS_NULL
}
nix_err nix_set_bool(nix_c_context *context, Value *value, bool b) {
if (context)
context->last_err_code = NIX_OK;