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
= calloc(1, sizeof(*arg
));
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
) {
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
, ", ...");
108 if (arg
->var
->array_size
) {
109 dprintf(fd
, "[%u]", arg
->var
->array_size
);
112 psi_decl_type_dump(fd
, arg
->type
, level
);
114 psi_decl_var_dump(fd
, arg
->var
);
118 bool psi_decl_arg_validate(struct psi_data
*data
, struct psi_decl_arg
*arg
,
119 struct psi_validate_scope
*scope
)
121 if (!psi_decl_type_validate(data
, arg
->type
, arg
, scope
)) {
122 if (!arg
->var
->pointer_level
) {
123 data
->error(data
, arg
->type
->token
, PSI_WARNING
,
124 "Cannot use '%s' as type for '%s'%s%s", arg
->type
->name
,
125 arg
->var
->name
, *data
->last_error
? ": " : "", data
->last_error
);
132 bool psi_decl_arg_validate_typedef(struct psi_data
*data
,
133 struct psi_decl_arg
*def
, struct psi_validate_scope
*scope
)
135 if (psi_validate_scope_has_type(scope
, def
->var
->name
)) {
138 psi_validate_scope_add_type(scope
, def
->var
->name
, def
);
140 if (def
->type
->type
== PSI_T_VOID
) {
141 if (def
->var
->pointer_level
) {
142 def
->type
->type
= PSI_T_POINTER
;
144 data
->error(data
, def
->token
, PSI_WARNING
,
145 "Type '%s' cannot be aliased to 'void'", def
->type
->name
);
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", def
->var
->name
, pre
,
167 def
->type
->name
, *data
->last_error
? ": " : "", data
->last_error
);
174 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
176 size_t align
= psi_decl_arg_get_align(darg
);
179 *len
= psi_decl_arg_get_size(darg
);
180 *pos
= psi_align(align
, *pos
);
186 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
190 if (darg
->var
->pointer_level
191 && (!darg
->var
->array_size
|| darg
->var
->pointer_level
> 1)) {
192 align
= psi_t_alignment(PSI_T_POINTER
);
194 align
= psi_decl_type_get_align(darg
->type
);
200 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
203 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
205 if (darg
->var
->array_size
&& darg
->var
->pointer_level
> 1) {
206 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
207 } else if (!darg
->var
->array_size
&& darg
->var
->pointer_level
) {
208 size
= psi_t_size(PSI_T_POINTER
);
210 switch (real
->type
) {
212 size
= real
->real
.unn
->size
;
215 size
= real
->real
.strct
->size
;
219 size
= psi_t_size(real
->type
);
223 if (darg
->var
->array_size
) {
224 size
*= darg
->var
->array_size
;
231 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
235 struct psi_decl_arg
*arg
;
238 while (psi_plist_get(args
, i
++, &arg
)) {
239 if (!strcmp(name
, arg
->var
->name
)) {
247 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
248 struct psi_plist
*args
, struct psi_decl_arg
*func
)
250 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
253 assert(!var
->arg
|| var
->arg
== arg
);
255 return var
->arg
= arg
;
258 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
259 return var
->arg
= func
;