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"
37 #include <Zend/zend_smart_str.h>
39 struct psi_let_exp
*psi_let_exp_init_ex(struct psi_decl_var
*var
,
40 enum psi_let_exp_kind kind
, void *data
)
42 struct psi_let_exp
*val
= psi_let_exp_init(kind
, data
);
47 struct psi_let_exp
*psi_let_exp_init(enum psi_let_exp_kind kind
, void *data
)
49 struct psi_let_exp
*let
= pecalloc(1, sizeof(*let
), 1);
50 switch (let
->kind
= kind
) {
58 let
->data
.alloc
= data
;
60 case PSI_LET_CALLBACK
:
61 let
->data
.callback
= data
;
64 let
->data
.func
= data
;
75 void psi_let_exp_free(struct psi_let_exp
**let_ptr
)
78 struct psi_let_exp
*let
= *let_ptr
;
85 psi_num_exp_free(&let
->data
.num
);
88 psi_let_calloc_free(&let
->data
.alloc
);
90 case PSI_LET_CALLBACK
:
91 psi_let_callback_free(&let
->data
.callback
);
94 psi_let_func_free(&let
->data
.func
);
97 psi_decl_var_free(&let
->data
.var
);
103 psi_decl_var_free(&let
->var
);
109 void psi_let_exp_dump(struct psi_dump
*dump
, struct psi_let_exp
*val
, unsigned level
, int last
)
112 /* only if not directly after `set ...` */
113 PSI_DUMP(dump
, "%s", psi_t_indent(level
));
117 if (val
->var
->token
) {
118 psi_decl_var_dump(dump
, val
->var
);
119 PSI_DUMP(dump
, " = ");
122 if (val
->is_reference
) {
128 PSI_DUMP(dump
, "NULL");
131 psi_decl_var_dump(dump
, val
->data
.var
);
132 PSI_DUMP(dump
, "\t/* fqn=%s */", val
->data
.var
->fqn
->val
);
135 psi_let_calloc_dump(dump
, val
->data
.alloc
);
137 case PSI_LET_CALLBACK
:
138 psi_let_callback_dump(dump
, val
->data
.callback
, level
);
141 psi_let_func_dump(dump
, val
->data
.func
, level
);
144 psi_num_exp_dump(dump
, val
->data
.num
);
152 PSI_DUMP(dump
, "\t/* fqn=%s */", val
->var
->fqn
->val
);
164 bool psi_let_exp_validate(struct psi_data
*data
, struct psi_let_exp
*val
,
165 struct psi_validate_scope
*scope
)
167 struct psi_decl_var
*dvar
= psi_let_exp_get_decl_var(val
);
171 if (!psi_decl_var_validate(data
, val
->data
.var
, scope
)) {
172 data
->error(data
, dvar
->token
? : **(struct psi_token
***) &val
->data
,
173 PSI_WARNING
, "Unknown variable '%s' in temp let statment of implementation '%s'",
174 dvar
->name
->val
, scope
->impl
->func
->name
->val
);
180 if (!psi_decl_var_validate(data
, dvar
, scope
)) {
181 data
->error(data
, dvar
->token
? : **(struct psi_token
***) &val
->data
,
182 PSI_WARNING
, "Unknown variable '%s' in let statement of implementation '%s'",
183 dvar
->name
->val
, scope
->impl
->func
->name
->val
);
192 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
193 /* e.g. let foo = *bar; */
194 val
->var
->pointer_level
= val
->data
.var
->pointer_level
;
195 val
->var
->arg
= val
->data
.var
->arg
;
198 if (!psi_num_exp_validate(data
, val
->data
.num
, scope
)) {
203 if (!psi_num_exp_validate(data
, val
->data
.alloc
->nmemb
, scope
)) {
206 if (!psi_num_exp_validate(data
, val
->data
.alloc
->size
, scope
)) {
210 case PSI_LET_CALLBACK
:
211 if (!psi_let_func_validate(data
, val
->data
.callback
->func
, scope
)) {
214 if (!psi_let_callback_validate(data
, val
->data
.callback
, scope
)) {
219 if (!psi_let_func_validate(data
, val
->data
.func
, scope
)) {
228 void *psi_let_exp_exec(struct psi_let_exp
*val
, struct psi_decl_arg
*darg
,
229 void *actual_location
, size_t actual_size
, struct psi_call_frame
*frame
)
231 struct psi_call_frame_symbol
*frame_sym
;
233 frame_sym
= psi_call_frame_fetch_symbol(frame
, val
->var
);
237 /* FIXME: sizeof_decl_arg */
238 if (darg
&& darg
->var
->array_size
) {
239 frame_sym
->temp_val
.ptr
= ecalloc(1, psi_decl_arg_get_size(darg
));
241 memset(&frame_sym
->temp_val
, 0, sizeof(frame_sym
->temp_val
));
247 struct psi_impl
*impl
= psi_call_frame_get_impl(frame
);
248 struct psi_let_stmt
*let_temp
= psi_impl_get_let(impl
, val
->data
.var
);
249 struct psi_call_frame_symbol
*temp_arg
;
252 temp_arg
= psi_call_frame_fetch_symbol(frame
, let_temp
->exp
->var
);
253 src
= deref_impl_val(temp_arg
->ptr
, val
->data
.var
);
254 memcpy(&frame_sym
->temp_val
, src
, psi_decl_var_get_size(let_temp
->exp
->var
));
260 zend_long n
= psi_num_exp_get_long(val
->data
.alloc
->nmemb
, frame
, NULL
);
261 zend_long s
= psi_num_exp_get_long(val
->data
.alloc
->size
, frame
, NULL
);
264 if (val
->data
.alloc
->static_memory
) {
265 tmp
= safe_pemalloc(n
, s
, sizeof(void *), 1);
267 tmp
= *psi_call_frame_push_auto(frame
, safe_emalloc(n
, s
, sizeof(void *)));
270 memset(tmp
, 0, n
* s
+ sizeof(void *));
271 frame_sym
->temp_val
.ptr
= tmp
;
278 token_t val_type
= psi_decl_type_get_real(val
->var
->arg
->type
)->type
;
279 token_t res_type
= psi_num_exp_exec(val
->data
.num
, &res
, frame
, NULL
);
281 if (val_type
== res_type
) {
282 frame_sym
->temp_val
= res
;
284 psi_calc_cast(res_type
, &res
, val_type
, &frame_sym
->temp_val
);
289 case PSI_LET_CALLBACK
:
290 frame_sym
->temp_val
.ptr
= val
->data
.callback
->decl
->sym
;
294 if (!psi_let_func_exec(val
, val
->data
.func
, darg
, frame
)) {
300 if (val
->is_reference
) {
301 frame_sym
->ptr
= &frame_sym
->ival_ptr
;
303 frame_sym
->ptr
= frame_sym
->ival_ptr
;
306 if (actual_location
) {
307 assert(!val
->is_reference
|| actual_size
== SIZEOF_VOID_P
);
308 memcpy(actual_location
, frame_sym
->ptr
, actual_size
);
309 frame_sym
->ptr
= actual_location
;
312 return frame_sym
->ptr
;
315 struct psi_let_func
* psi_let_exp_get_func(struct psi_let_exp
* exp
)
319 case PSI_LET_CALLBACK
:
320 return exp
->data
.callback
->func
;
322 return exp
->data
.func
;
330 struct psi_decl_var
*psi_let_exp_get_decl_var(struct psi_let_exp
*val
)
333 zend_string
*name
= psi_let_exp_get_decl_var_name(val
);
336 val
->var
= psi_decl_var_init(name
, 0, 0);
337 zend_string_release(name
);
343 struct psi_impl_var
*psi_let_exp_get_impl_var(struct psi_let_exp
*val
)
345 struct psi_let_func
* fn
= psi_let_exp_get_func(val
);
346 return fn
? fn
->var
: NULL
;
349 zend_string
*psi_let_exp_get_decl_var_name(struct psi_let_exp
* val
)
351 struct psi_impl_var
* var
;
354 return zend_string_copy(val
->var
->name
);
357 var
= psi_let_exp_get_impl_var(val
);
359 smart_str name
= {0};
361 smart_str_appendl_ex(&name
, &var
->name
->val
[1], var
->name
->len
- 1, 1);
363 return smart_str_extract(&name
);