d2fcc1a62befe02b6681c4262370b53e547d97f1
1 /*******************************************************************************
2 Copyright (c) 2016, Michael Wallner <mike@php.net>.
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *******************************************************************************/
29 # include "php_config.h"
40 num_exp
*init_num_exp(token_t t
, void *num
) {
41 num_exp
*exp
= calloc(1, sizeof(*exp
));
45 exp
->u
.numb
= strdup(num
);
56 num_exp
*copy_num_exp(num_exp
*exp
) {
58 num_exp
*num
= calloc(1, sizeof(*num
));
59 memcpy(num
, exp
, sizeof(*num
));
61 num
->token
= psi_token_copy(num
->token
);
64 num
->operand
= copy_num_exp(num
->operand
);
69 num
->u
.numb
= strdup(num
->u
.numb
);
72 dvar
= init_decl_var(num
->u
.dvar
->name
, num
->u
.dvar
->pointer_level
,
73 num
->u
.dvar
->array_size
);
74 dvar
->arg
= num
->u
.dvar
->arg
;
75 if (num
->u
.dvar
->token
) {
76 dvar
->token
= psi_token_copy(num
->u
.dvar
->token
);
86 void free_num_exp(num_exp
*exp
) {
97 free_decl_var(exp
->u
.dvar
);
105 free_num_exp(exp
->operand
);
110 void dump_num_exp(int fd
, num_exp
*exp
) {
114 dprintf(fd
, "%s", exp
->u
.numb
);
117 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
120 dump_decl_var(fd
, exp
->u
.dvar
);
123 dprintf(fd
, "%s", exp
->u
.enm
->name
);
131 switch (exp
->operator) {
132 case PSI_T_PLUS
: op
= '+'; break;
133 case PSI_T_MINUS
: op
= '-'; break;
134 case PSI_T_ASTERISK
:op
= '*'; break;
135 case PSI_T_SLASH
: op
= '/'; break;
139 dprintf(fd
, " %c ", op
);
145 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
148 for (i
= 0; i
< consts
->count
; ++i
) {
149 constant
*cnst
= consts
->list
[i
];
151 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
153 return exp
->u
.cnst
= cnst
;
159 static inline decl_enum_item
*locate_num_exp_enum_item_ex(num_exp
*exp
, decl_enum
*e
) {
162 if (e
) for (k
= 0; k
< e
->items
->count
; ++k
) {
163 decl_enum_item
*i
= e
->items
->list
[k
];
165 if (!strcmp(i
->name
, exp
->u
.dvar
->name
)) {
166 free_decl_var(exp
->u
.dvar
);
174 static inline decl_enum_item
*locate_num_exp_enum_item(num_exp
*exp
, decl_enums
*enums
) {
177 if (enums
) for (j
= 0; j
< enums
->count
; ++j
) {
178 decl_enum
*e
= enums
->list
[j
];
179 decl_enum_item
*i
= locate_num_exp_enum_item_ex(exp
, e
);
188 int validate_num_exp(struct psi_data
*data
, num_exp
*exp
, decl_args
*dargs
, decl_arg
*func
, decl_enum
*enm
) {
190 switch (exp
->operator) {
192 exp
->calculator
= psi_calc_add
;
195 exp
->calculator
= psi_calc_sub
;
198 exp
->calculator
= psi_calc_mul
;
201 exp
->calculator
= psi_calc_div
;
206 if (!validate_num_exp(data
, exp
->operand
, dargs
, func
, enm
)) {
212 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
213 if (!locate_num_exp_enum_item(exp
, data
->enums
) && !locate_num_exp_enum_item_ex(exp
, enm
)) {
214 data
->error(data
, exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
221 if (!locate_num_exp_constant(exp
, data
->consts
)) {
222 data
->error(data
, exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",