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 *******************************************************************************/
26 #include "php_psi_stdinc.h"
31 struct psi_decl_arg
*psi_decl_arg_init(struct psi_decl_type
*type
,
32 struct psi_decl_var
*var
)
34 struct psi_decl_arg
*arg
= pecalloc(1, sizeof(*arg
), 1);
35 arg
->token
= var
->token
;
42 void psi_decl_arg_free(struct psi_decl_arg
**arg_ptr
)
45 struct psi_decl_arg
*arg
= *arg_ptr
;
48 if (arg
->token
&& arg
->token
!= arg
->var
->token
) {
49 psi_token_free(&arg
->token
);
51 psi_decl_type_free(&arg
->type
);
52 psi_decl_var_free(&arg
->var
);
54 psi_layout_free(&arg
->layout
);
60 void psi_decl_arg_dump(int fd
, struct psi_decl_arg
*arg
, unsigned level
)
62 if (arg
->type
->type
== PSI_T_FUNCTION
) {
63 psi_decl_type_dump(fd
, arg
->type
->real
.func
->func
->type
, level
);
64 if (arg
->type
->real
.func
->func
->type
->type
== PSI_T_FUNCTION
) {
67 dprintf(fd
, " %s(*%s)",
68 psi_t_indirection(arg
->var
->pointer_level
- !! arg
->var
->array_size
),
71 if (arg
->type
->real
.func
->args
) {
73 struct psi_decl_arg
*farg
;
76 while (psi_plist_get(arg
->type
->real
.func
->args
, j
++, &farg
)) {
80 psi_decl_arg_dump(fd
, farg
, level
);
83 if (arg
->type
->real
.func
->varargs
) {
88 if (arg
->type
->real
.func
->func
->type
->type
== PSI_T_FUNCTION
) {
89 struct psi_decl
*decl
= arg
->type
->real
.func
->func
->type
->real
.func
;
94 struct psi_decl_arg
*arg
;
96 for (i
= 0; psi_plist_get(decl
->args
, i
, &arg
); ++i
) {
100 psi_decl_arg_dump(fd
, arg
, 0);
103 dprintf(fd
, ", ...");
109 psi_decl_type_dump(fd
, arg
->type
, level
);
111 psi_decl_var_dump(fd
, arg
->var
);
115 bool psi_decl_arg_validate(struct psi_data
*data
, struct psi_decl_arg
*arg
,
116 struct psi_validate_scope
*scope
)
118 if (!psi_decl_type_validate(data
, arg
->type
, NULL
, scope
)) {
119 if (!arg
->var
->pointer_level
) {
120 data
->error(data
, arg
->type
->token
, PSI_WARNING
,
121 "Cannot use '%s' as type for '%s'%s%s",
122 arg
->type
->name
->val
,
124 *data
->last_error
? ": " : "", data
->last_error
);
131 bool psi_decl_arg_validate_typedef(struct psi_data
*data
,
132 struct psi_decl_arg
*def
, struct psi_validate_scope
*scope
)
134 if (psi_validate_scope_has_type(scope
, def
->var
->name
)) {
137 psi_validate_scope_add_type(scope
, def
->var
->name
, def
);
139 if (def
->type
->type
== PSI_T_VOID
) {
140 if (def
->var
->pointer_level
) {
141 def
->type
->type
= PSI_T_POINTER
;
143 data
->error(data
, def
->token
, PSI_WARNING
,
144 "Type '%s' cannot be aliased to 'void'",
145 def
->type
->name
->val
);
148 } else if (!psi_decl_type_validate(data
, def
->type
, def
, scope
)) {
151 switch (def
->type
->type
) {
165 data
->error(data
, def
->token
, PSI_WARNING
,
166 "Type '%s' cannot be aliased to '%s%s'%s%s",
167 def
->var
->name
->val
, pre
,
168 def
->type
->name
->val
,
169 *data
->last_error
? ": " : "", data
->last_error
);
176 bool psi_decl_arg_is_pointer(struct psi_decl_arg
*darg
)
178 if (darg
->var
->pointer_level
) {
179 if (darg
->var
->array_size
) {
180 return darg
->var
->pointer_level
> 1;
183 } else if (psi_decl_type_is_weak(darg
->type
) && darg
->type
->real
.def
) {
184 return psi_decl_arg_is_pointer(darg
->type
->real
.def
);
189 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
191 size_t align
= psi_decl_arg_get_align(darg
);
194 *len
= psi_decl_arg_get_size(darg
);
195 *pos
= psi_align(align
, *pos
);
201 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
205 if (psi_decl_arg_is_pointer(darg
)) {
206 align
= psi_t_alignment(PSI_T_POINTER
);
208 align
= psi_decl_type_get_align(darg
->type
);
214 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
217 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
219 if (darg
->var
->array_size
&& darg
->var
->pointer_level
> 1) {
220 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
221 } else if (psi_decl_arg_is_pointer(darg
)) {
222 size
= psi_t_size(PSI_T_POINTER
);
224 switch (real
->type
) {
226 size
= real
->real
.unn
->size
;
229 size
= real
->real
.strct
->size
;
233 size
= psi_t_size(real
->type
);
237 if (darg
->var
->array_size
) {
238 size
*= darg
->var
->array_size
;
245 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
249 struct psi_decl_arg
*arg
;
252 while (psi_plist_get(args
, i
++, &arg
)) {
253 if (zend_string_equals(name
, arg
->var
->name
)) {
261 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
262 struct psi_plist
*args
, struct psi_decl_arg
*func
)
264 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
267 assert(!var
->arg
|| var
->arg
== arg
);
269 return var
->arg
= arg
;
272 if (func
&& zend_string_equals(var
->name
, func
->var
->name
)) {
273 return var
->arg
= func
;