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/**
* @file schema_compile_amend.h
* @author Radek Krejci <rkrejci@cesnet.cz>
* @author Michal Vasko <mvasko@cesnet.cz>
* @brief Header for schema compilation of augments, deviations, and refines.
*
* Copyright (c) 2015 - 2022 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#ifndef LY_SCHEMA_COMPILE_AMEND_H_
#define LY_SCHEMA_COMPILE_AMEND_H_
#include "log.h"
struct ly_ctx;
struct lysp_qname;
struct lysp_node;
struct lysc_node;
struct lysc_ctx;
struct lysp_node_uses;
struct lys_glob_unres;
struct lys_module;
/**
* @brief Compiled parsed augment structure. Just a temporary storage for applying the augment to data.
*/
struct lysc_augment {
struct lyxp_expr *nodeid; /**< augment target */
const struct lysp_module *aug_pmod; /**< module where the augment is defined, for top-level augments
used to resolve prefixes, for uses augments used as the context pmod */
const struct lysc_node *nodeid_ctx_node; /**< nodeid context node for relative targets */
const struct lysp_ext_instance *ext; /**< parent extension instance, in case the augment is from one */
struct lysp_node_augment *aug_p; /**< pointer to the parsed augment to apply */
};
/**
* @brief Compiled parsed deviation structure. Just a temporary storage for applying the deviation to data.
*/
struct lysc_deviation {
struct lyxp_expr *nodeid; /**< deviation target, taken from the first deviation in
::lysc_deviation.dev_pmods array, this module is used for resolving
prefixes used in the nodeid. */
struct lysp_deviation **devs; /**< sized array of all the parsed deviations for one target node */
const struct lysp_module **dev_pmods; /**< sized array of parsed modules of @p devs (where the specific deviations
are defined). */
ly_bool not_supported; /**< whether this is a not-supported deviation */
};
/**
* @brief Compiled parsed refine structure. Just a temporary storage for applying the refine to data.
*/
struct lysc_refine {
struct lyxp_expr *nodeid; /**< refine target */
const struct lysp_module *nodeid_pmod; /**< module where the nodeid is defined, used to resolve prefixes */
const struct lysc_node *nodeid_ctx_node; /**< nodeid context node */
struct lysp_node_uses *uses_p; /**< parsed uses node of the refine, for tracking recursive refines */
struct lysp_refine **rfns; /**< sized array of parsed refines to apply */
};
/**
* @brief Prepare any uses augments and refines in the context to be applied during uses descendant node compilation.
*
* @param[in] ctx Compile context.
* @param[in] uses_p Parsed uses structure with augments and refines.
* @param[in] ctx_node Context node of @p uses_p meaning its first data definition parent.
* @return LY_ERR value.
*/
LY_ERR lys_precompile_uses_augments_refines(struct lysc_ctx *ctx, struct lysp_node_uses *uses_p,
const struct lysc_node *ctx_node);
/**
* @brief Duplicate qname structure.
*
* @param[in] ctx libyang context.
* @param[in] orig_qname Structure to read from.
* @param[in,out] qname Structure to fill.
* @return LY_ERR value.
*/
LY_ERR lysp_qname_dup(const struct ly_ctx *ctx, const struct lysp_qname *orig_qname, struct lysp_qname *qname);
/**
* @brief Free a compiled augment temporary structure.
*
* @param[in] ctx libyang context.
* @param[in] aug Structure to free.
*/
void lysc_augment_free(const struct ly_ctx *ctx, struct lysc_augment *aug);
/**
* @brief Free a compiled deviation temporary structure.
*
* @param[in] ctx libyang context.
* @param[in] dev Structure to free.
*/
void lysc_deviation_free(const struct ly_ctx *ctx, struct lysc_deviation *dev);
/**
* @brief Free a compiled refine temporary structure.
*
* @param[in] ctx libyang context.
* @param[in] rfn Structure to free.
*/
void lysc_refine_free(const struct ly_ctx *ctx, struct lysc_refine *rfn);
/**
* @brief Free a duplicate of parsed node. It is returned by ::lys_compile_node_deviations_refines().
*
* @param[in] ctx libyang context.
* @param[in] dev_pnode Parsed node to free.
*/
void lysp_dev_node_free(struct lysc_ctx *cctx, struct lysp_node *dev_pnode);
/**
* @brief Compile and apply any precompiled deviations and refines targeting a node.
*
* @param[in] ctx Compile context.
* @param[in] pnode Parsed node to consider.
* @param[in] parent First compiled parent of @p pnode.
* @param[out] dev_pnode Copy of parsed node @p pnode with deviations and refines, if any. NULL if there are none.
* @param[out] not_supported Whether a not-supported deviation is defined for the node.
* @return LY_ERR value.
*/
LY_ERR lys_compile_node_deviations_refines(struct lysc_ctx *ctx, const struct lysp_node *pnode,
const struct lysc_node *parent, struct lysp_node **dev_pnode, ly_bool *not_supported);
/**
* @brief Compile and apply any precompiled top-level or uses augments targeting a node.
*
* @param[in] ctx Compile context.
* @param[in] node Compiled node to consider.
* @return LY_ERR value.
*/
LY_ERR lys_compile_node_augments(struct lysc_ctx *ctx, struct lysc_node *node);
/**
* @brief Prepare all top-level augments for the current module to be applied during data nodes compilation.
*
* @param[in] ctx Compile context.
* @return LY_ERR value.
*/
LY_ERR lys_precompile_own_augments(struct lysc_ctx *ctx);
/**
* @brief Prepare all deviations for the current module to be applied during data nodes compilation.
*
* @param[in] ctx Compile context.
* @return LY_ERR value.
*/
LY_ERR lys_precompile_own_deviations(struct lysc_ctx *ctx);
/**
* @brief Add references to target modules of top-level augments and deviations in a module and all its submodules.
* Adds the module reference to the target modules and if not implemented, implement them (but not compile).
*
* @param[in] mod Module to process.
* @param[in,out] unres Global unres to use.
* @return LY_SUCCESS on success.
* @return LY_ERECOMPILE on required recompilation of the dep set.
* @return LY_ERR on error.
*/
LY_ERR lys_precompile_augments_deviations(struct lys_module *mod, struct lys_glob_unres *unres);
/**
* @brief Revert precompilation of module augments and deviations. Meaning remove its reference from
* all the target modules.
*
* @param[in] ctx libyang context.
* @param[in] mod Mod whose precompilation to revert.
*/
void lys_precompile_augments_deviations_revert(struct ly_ctx *ctx, const struct lys_module *mod);
#endif /* LY_SCHEMA_COMPILE_AMEND_H_ */
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