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nix_api_expr: merge nix_parse_expr and nix_expr_eval, remove Expr

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Yorick van Pelt 2023-07-27 15:57:48 +02:00 • committed by José Luis Lafuente
parent 1777e4a5bb
commit aa85f7d917
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4 changed files with 11 additions and 66 deletions
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33
src/libexpr/nix_api_expr.h
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@ -13,12 +13,6 @@ extern "C" {
// cffi start
// Type definitions
/**
* @brief Represents a parsed nix Expression, can be evaluated into a Value.
*
* Owned by the GC.
*/
typedef void Expr; // nix::Expr
/**
* @brief Represents a nix evaluator state.
*
@ -54,34 +48,19 @@ typedef struct GCRef GCRef; // void*
nix_err nix_libexpr_init(nix_c_context *context);
/**
* @brief Parses a Nix expression from a string.
*
* The returned expression is owned by the garbage collector.
* Pass a gcref to keep a reference.
*
* @param[out] context Optional, stores error information
* @param[in] state Evaluator state.
* @param[in] expr The Nix expression to parse.
* @param[in] path The file path to associate with the expression.
* @param[out] ref Optional, will store a reference to the returned value.
* @return A parsed expression or NULL on failure.
*/
Expr *nix_parse_expr_from_string(nix_c_context *context, State *state,
const char *expr, const char *path,
GCRef *ref);
/**
* @brief Evaluates a parsed Nix expression.
* @brief Parses and evaluates a Nix expression from a string.
*
* @param[out] context Optional, stores error information
* @param[in] state The state of the evaluation.
* @param[in] expr The Nix expression to evaluate.
* @param[in] expr The Nix expression to parse.
* @param[in] path The file path to associate with the expression.
* @param[out] value The result of the evaluation. You should allocate this
* yourself.
* @return NIX_OK if the evaluation was successful, an error code otherwise.
*/
nix_err nix_expr_eval(nix_c_context *context, State *state, Expr *expr,
Value *value);
nix_err nix_expr_eval_from_string(nix_c_context *context, State *state,
const char *expr, const char *path,
Value *value);
/**
* @brief Calls a Nix function with an argument.