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
, ", ...");
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", arg
->type
->name
,
122 arg
->var
->name
, *data
->last_error
? ": " : "", data
->last_error
);
129 bool psi_decl_arg_validate_typedef(struct psi_data
*data
,
130 struct psi_decl_arg
*def
, struct psi_validate_scope
*scope
)
132 if (psi_validate_scope_has_type(scope
, def
->var
->name
)) {
135 psi_validate_scope_add_type(scope
, def
->var
->name
, def
);
137 if (def
->type
->type
== PSI_T_VOID
) {
138 if (def
->var
->pointer_level
) {
139 def
->type
->type
= PSI_T_POINTER
;
141 data
->error(data
, def
->token
, PSI_WARNING
,
142 "Type '%s' cannot be aliased to 'void'", def
->type
->name
);
145 } else if (!psi_decl_type_validate(data
, def
->type
, def
, scope
)) {
148 switch (def
->type
->type
) {
162 data
->error(data
, def
->token
, PSI_WARNING
,
163 "Type '%s' cannot be aliased to '%s%s'%s%s", def
->var
->name
, pre
,
164 def
->type
->name
, *data
->last_error
? ": " : "", data
->last_error
);
171 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
173 size_t align
= psi_decl_arg_get_align(darg
);
176 *len
= psi_decl_arg_get_size(darg
);
177 *pos
= psi_align(align
, *pos
);
183 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
187 if (darg
->var
->pointer_level
188 && (!darg
->var
->array_size
|| darg
->var
->pointer_level
> 1)) {
189 align
= psi_t_alignment(PSI_T_POINTER
);
191 align
= psi_decl_type_get_align(darg
->type
);
197 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
200 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
202 if (darg
->var
->array_size
&& darg
->var
->pointer_level
> 1) {
203 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
204 } else if (!darg
->var
->array_size
&& darg
->var
->pointer_level
) {
205 size
= psi_t_size(PSI_T_POINTER
);
207 switch (real
->type
) {
209 size
= real
->real
.unn
->size
;
212 size
= real
->real
.strct
->size
;
216 size
= psi_t_size(real
->type
);
220 if (darg
->var
->array_size
) {
221 size
*= darg
->var
->array_size
;
228 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
232 struct psi_decl_arg
*arg
;
235 while (psi_plist_get(args
, i
++, &arg
)) {
236 if (!strcmp(name
, arg
->var
->name
)) {
244 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
245 struct psi_plist
*args
, struct psi_decl_arg
*func
)
247 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
250 assert(!var
->arg
|| var
->arg
== arg
);
252 return var
->arg
= arg
;
255 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
256 return var
->arg
= func
;