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 dprintf(fd
, " %s(*%s)",
65 psi_t_indirection(arg
->var
->pointer_level
- !! arg
->var
->array_size
),
68 if (arg
->type
->real
.func
->args
) {
70 struct psi_decl_arg
*farg
;
73 while (psi_plist_get(arg
->type
->real
.func
->args
, j
++, &farg
)) {
77 psi_decl_arg_dump(fd
, farg
, level
);
80 if (arg
->type
->real
.func
->varargs
) {
85 if (arg
->var
->array_size
) {
86 dprintf(fd
, "[%u]", arg
->var
->array_size
);
89 psi_decl_type_dump(fd
, arg
->type
, level
);
91 psi_decl_var_dump(fd
, arg
->var
);
95 bool psi_decl_arg_validate(struct psi_data
*data
, struct psi_decl_arg
*arg
)
97 if (!psi_decl_type_validate(data
, arg
->type
, NULL
)) {
98 data
->error(data
, arg
->type
->token
, PSI_WARNING
,
99 "Cannot use '%s' as type for '%s': %s", arg
->type
->name
,
100 arg
->var
->name
, data
->last_error
);
106 bool psi_decl_arg_validate_typedef(struct psi_data
*data
, struct psi_decl_arg
*def
)
108 if (!psi_decl_type_validate(data
, def
->type
, def
)) {
111 switch (def
->type
->type
) {
125 data
->error(data
, def
->token
, PSI_WARNING
,
126 "Type '%s' cannot be aliased to '%s%s': %s", def
->var
->name
, pre
,
127 def
->type
->name
, data
->last_error
);
130 if (def
->type
->type
== PSI_T_VOID
) {
131 if (def
->var
->pointer_level
) {
132 def
->type
->type
= PSI_T_POINTER
;
134 data
->error(data
, def
->token
, PSI_WARNING
,
135 "Type '%s' cannot be aliased to 'void'", def
->type
->name
);
143 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
145 size_t align
= psi_decl_arg_get_align(darg
);
149 *len
= psi_decl_arg_get_size(darg
);
150 *pos
= psi_align(align
, *pos
);
155 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
159 if (darg
->var
->pointer_level
160 && (!darg
->var
->array_size
|| darg
->var
->pointer_level
> 2)) {
161 align
= psi_t_alignment(PSI_T_POINTER
);
163 align
= psi_decl_type_get_align(darg
->type
);
169 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
172 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
174 if (darg
->var
->array_size
) {
175 if (darg
->var
->pointer_level
> 2) {
176 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
178 size
= psi_t_size(real
->type
) * darg
->var
->array_size
;
180 } else if (darg
->var
->pointer_level
) {
181 size
= psi_t_size(PSI_T_POINTER
);
183 switch (real
->type
) {
185 size
= real
->real
.unn
->size
;
188 size
= real
->real
.strct
->size
;
192 size
= psi_t_size(real
->type
);
200 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
204 struct psi_decl_arg
*arg
;
207 while (psi_plist_get(args
, i
++, &arg
)) {
208 if (!strcmp(name
, arg
->var
->name
)) {
216 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
217 struct psi_plist
*args
, struct psi_decl_arg
*func
)
219 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
222 assert(!var
->arg
|| var
->arg
== arg
);
224 return var
->arg
= arg
;
227 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
228 return var
->arg
= func
;