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/*
Copyright (C) 2013-2018 Brazil
Copyright (C) 2018-2024 Sutou Kouhei <kou@clear-code.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "grn_db.h"
#include "grn_expr_code.h"
#include "grn_expr_executor.h"
#ifdef __cplusplus
extern "C" {
#endif
#define GRN_EXPR_CONST_BLK_SIZE GRN_STACK_SIZE
struct _grn_expr {
grn_db_obj obj;
grn_obj name_buf;
grn_expr_var *vars;
uint32_t nvars;
/* -- compatible with grn_proc -- */
uint16_t cacheable;
uint16_t taintable;
grn_obj **const_blks;
grn_obj *values;
grn_expr_code *codes;
uint32_t nconsts;
ptrdiff_t values_curr;
ptrdiff_t values_tail;
uint32_t values_size;
uint32_t codes_curr;
uint32_t codes_size;
grn_obj objs;
grn_obj dfi;
grn_expr_code *code0;
struct {
grn_expr_code *codes;
uint32_t codes_curr;
grn_expr_executor executor;
} cache;
grn_obj query_log_tag_prefix;
grn_obj *parent;
grn_obj *condition;
};
void *
grn_expr_parser_open(grn_ctx *ctx);
grn_rc
grn_expr_parser_close(grn_ctx *ctx, void *parser);
#define SCAN_ACCESSOR (0x01)
#define SCAN_PUSH (0x02)
#define SCAN_POP (0x04)
#define SCAN_PRE_CONST (0x08)
typedef enum {
SCAN_START = 0,
SCAN_VAR,
SCAN_COL1,
SCAN_COL2,
SCAN_CONST
} scan_stat;
typedef struct _grn_scan_info scan_info;
typedef bool (*grn_scan_info_each_arg_callback)(grn_ctx *ctx,
grn_obj *obj,
void *user_data);
void
grn_expr_init_from_env(void);
grn_obj *
grn_expr_get_query_options(grn_ctx *ctx, grn_obj *expr);
grn_rc
grn_expr_set_query_options(grn_ctx *ctx, grn_obj *expr, grn_obj *query_options);
scan_info **
grn_scan_info_build(
grn_ctx *ctx, grn_obj *expr, int *n, grn_operator op, bool record_exist);
scan_info *
grn_scan_info_open(grn_ctx *ctx, int start);
void
grn_scan_info_close(grn_ctx *ctx, scan_info *si);
void
grn_scan_info_put_index(grn_ctx *ctx,
scan_info *si,
grn_obj *index,
uint32_t sid,
int32_t start_position,
float weight,
grn_obj *scorer,
grn_obj *scorer_args_expr,
uint32_t scorer_args_expr_offset);
scan_info **
grn_scan_info_put_logical_op(grn_ctx *ctx,
scan_info **sis,
int *ip,
grn_operator op,
int start,
float weight_factor);
int
grn_scan_info_get_flags(scan_info *si);
void
grn_scan_info_set_flags(scan_info *si, int flags);
grn_operator
grn_scan_info_get_logical_op(scan_info *si);
void
grn_scan_info_set_logical_op(scan_info *si, grn_operator logical_op);
grn_operator
grn_scan_info_get_op(scan_info *si);
void
grn_scan_info_set_weight_factor(scan_info *si, float factor);
float
grn_scan_info_get_weight_factor(scan_info *si);
void
grn_scan_info_set_op(scan_info *si, grn_operator op);
void
grn_scan_info_set_end(scan_info *si, uint32_t end);
void
grn_scan_info_set_query(scan_info *si, grn_obj *query);
int
grn_scan_info_get_max_interval(scan_info *si);
void
grn_scan_info_set_max_interval(scan_info *si, int max_interval);
int
grn_scan_info_get_additional_last_interval(scan_info *si);
void
grn_scan_info_set_additional_last_interval(scan_info *si,
int additional_last_interval);
grn_obj *
grn_scan_info_get_max_element_intervals(scan_info *si);
void
grn_scan_info_set_max_element_intervals(grn_ctx *ctx,
scan_info *si,
grn_obj *max_element_intervals);
int
grn_scan_info_get_min_interval(scan_info *si);
void
grn_scan_info_set_min_interval(scan_info *si, int min_interval);
int
grn_scan_info_get_similarity_threshold(scan_info *si);
void
grn_scan_info_set_similarity_threshold(scan_info *si, int similarity_threshold);
int
grn_scan_info_get_quorum_threshold(scan_info *si);
void
grn_scan_info_set_quorum_threshold(scan_info *si, int quorum_threshold);
bool
grn_scan_info_push_arg(grn_ctx *ctx, scan_info *si, grn_obj *arg);
grn_obj *
grn_scan_info_get_arg(grn_ctx *ctx, scan_info *si, int i);
float
grn_expr_code_get_weight(grn_ctx *ctx, grn_expr_code *ec, uint32_t *offset);
grn_rc
grn_expr_code_inspect_indented(grn_ctx *ctx,
grn_obj *buffer,
grn_expr_code *code,
const char *indent);
void
grn_p_expr_code(grn_ctx *ctx, grn_expr_code *code);
grn_obj *
grn_expr_alloc_const(grn_ctx *ctx, grn_obj *expr);
grn_rc
grn_ctx_expand_stack(grn_ctx *ctx);
bool
grn_expr_is_simple_function_call(grn_ctx *ctx, grn_obj *expr);
grn_obj *
grn_expr_simple_function_call_get_function(grn_ctx *ctx, grn_obj *expr);
grn_rc
grn_expr_simple_function_call_get_arguments(grn_ctx *ctx,
grn_obj *expr,
grn_obj *arguments);
bool
grn_expr_is_module_list(grn_ctx *ctx, grn_obj *expr);
unsigned int
grn_expr_module_list_get_n_modules(grn_ctx *ctx, grn_obj *expr);
grn_obj *
grn_expr_module_list_get_function(grn_ctx *ctx, grn_obj *expr, unsigned int i);
grn_rc
grn_expr_module_list_get_arguments(grn_ctx *ctx,
grn_obj *expr,
unsigned int i,
grn_obj *arguments);
grn_rc
grn_expr_match_columns_split(grn_ctx *ctx,
grn_obj *expr,
grn_obj *splitted_match_columns);
grn_obj *
grn_expr_slice(grn_ctx *ctx,
grn_obj *expr,
uint32_t code_start_offset,
uint32_t code_end_offset);
grn_rc
grn_expr_to_script_syntax(grn_ctx *ctx, grn_obj *expr, grn_obj *buffer);
void
grn_expr_get_range_info(grn_ctx *ctx,
grn_obj *expr,
grn_id *range_id,
grn_obj_flags *range_flags);
uint32_t
grn_expr_get_n_logical_ops(grn_ctx *ctx, grn_obj *expr);
typedef enum {
GRN_EXPR_V1_FORMAT_TYPE_OUTPUT_COLUMNS,
GRN_EXPR_V1_FORMAT_TYPE_SORT_KEYS,
GRN_EXPR_V1_FORMAT_TYPE_GROUP_KEYS,
} grn_expr_v1_format_type;
bool
grn_expr_is_v1_format(grn_ctx *ctx,
const char *raw_text,
ssize_t raw_text_len,
grn_expr_v1_format_type type);
#ifdef __cplusplus
}
#endif
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