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99 lines
2.5 KiB
99 lines
2.5 KiB
2 years ago
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/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 1997 - July 2008 CWI, August 2008 - 2022 MonetDB B.V.
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*/
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#ifndef SQL_SYMBOL_H
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#define SQL_SYMBOL_H
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#include "sql_types.h"
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#include "sql_atom.h"
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#include "sql_tokens.h"
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typedef enum symtype {
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type_int,
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type_lng,
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type_string,
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type_list,
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type_symbol,
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type_type
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} symtype;
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typedef union symbdata {
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int i_val;
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lng l_val;
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char *sval;
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struct dlist *lval;
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struct symbol *sym;
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struct sql_subtype typeval;
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} symbdata;
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typedef struct dnode {
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struct dnode *next;
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symbdata data;
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symtype type;
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} dnode;
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typedef struct dlist {
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dnode *h;
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dnode *t;
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int cnt;
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} dlist;
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extern dlist *dlist_create(sql_allocator *sa);
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extern int dlist_length(dlist *l);
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extern dlist *dlist_append_string(sql_allocator *sa, dlist *l, const char *data);
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extern dlist *dlist_append_list(sql_allocator *sa, dlist *l, dlist *data);
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extern dlist *dlist_append_int(sql_allocator *sa, dlist *l, int data);
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extern dlist *dlist_append_lng(sql_allocator *sa, dlist *l, lng data);
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extern dlist *dlist_append_symbol(sql_allocator *sa, dlist *l, struct symbol *data);
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extern dlist *dlist_append_type(sql_allocator *sa, dlist *l, struct sql_subtype *data);
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typedef struct symbol {
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tokens token;
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symtype type;
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symbdata data;
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} symbol;
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typedef struct SelectNode {
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symbol s;
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symbol *limit;
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symbol *offset;
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symbol *sample;
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symbol *seed;
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int distinct;
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int lateral;
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struct dlist *selection;
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struct dlist *into; /* ?? */
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symbol *from;
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symbol *where;
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symbol *groupby;
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symbol *having;
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symbol *orderby;
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symbol *name;
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symbol *window;
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} SelectNode;
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typedef struct AtomNode {
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symbol s;
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struct atom *a;
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} AtomNode;
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extern symbol *symbol_create(sql_allocator *sa, tokens token, char *data);
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extern symbol *symbol_create_list(sql_allocator *sa, tokens token, dlist *data);
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extern symbol *symbol_create_int(sql_allocator *sa, tokens token, int data);
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extern symbol *symbol_create_lng(sql_allocator *sa, tokens token, lng data);
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extern symbol *symbol_create_symbol(sql_allocator *sa, tokens token, symbol *data);
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extern symbol *newSelectNode(sql_allocator *sa, int distinct, struct dlist *selection, struct dlist *into, symbol *from, symbol *where, symbol *groupby, symbol *having, symbol *orderby, symbol *name, symbol *limit, symbol *offset, symbol *sample, symbol *seed, symbol *window);
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extern symbol *newAtomNode(sql_allocator *sa, atom *a);
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#endif /* SQL_SYMBOL_H */
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