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
,
96 struct psi_validate_stack
*type_stack
)
98 if (!psi_decl_type_validate(data
, arg
->type
, arg
->var
->pointer_level
, type_stack
)) {
99 if (!arg
->var
->pointer_level
) {
100 data
->error(data
, arg
->type
->token
, PSI_WARNING
,
101 "Cannot use '%s' as type for '%s'%s%s", arg
->type
->name
,
102 arg
->var
->name
, *data
->last_error
? ": " : "", data
->last_error
);
109 bool psi_decl_arg_validate_typedef(struct psi_data
*data
,
110 struct psi_decl_arg
*def
, struct psi_validate_stack
*type_stack
)
112 if (psi_validate_stack_has_type(type_stack
, def
->var
->name
)) {
115 psi_validate_stack_add_type(type_stack
, def
->var
->name
, def
);
117 if (def
->type
->type
== PSI_T_VOID
) {
118 if (def
->var
->pointer_level
) {
119 def
->type
->type
= PSI_T_POINTER
;
121 data
->error(data
, def
->token
, PSI_WARNING
,
122 "Type '%s' cannot be aliased to 'void'", def
->type
->name
);
125 } else if (!psi_decl_type_validate(data
, def
->type
, def
->var
->pointer_level
, type_stack
)) {
128 switch (def
->type
->type
) {
142 data
->error(data
, def
->token
, PSI_WARNING
,
143 "Type '%s' cannot be aliased to '%s%s'%s%s", def
->var
->name
, pre
,
144 def
->type
->name
, *data
->last_error
? ": " : "", data
->last_error
);
151 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
153 size_t align
= psi_decl_arg_get_align(darg
);
156 *len
= psi_decl_arg_get_size(darg
);
157 *pos
= psi_align(align
, *pos
);
163 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
167 if (darg
->var
->pointer_level
168 && (!darg
->var
->array_size
|| darg
->var
->pointer_level
> 1)) {
169 align
= psi_t_alignment(PSI_T_POINTER
);
171 align
= psi_decl_type_get_align(darg
->type
);
177 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
180 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
182 if (darg
->var
->array_size
) {
183 if (darg
->var
->pointer_level
> 1) {
184 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
186 size
= psi_t_size(real
->type
) * darg
->var
->array_size
;
188 } else if (darg
->var
->pointer_level
) {
189 size
= psi_t_size(PSI_T_POINTER
);
191 switch (real
->type
) {
193 size
= real
->real
.unn
->size
;
196 size
= real
->real
.strct
->size
;
200 size
= psi_t_size(real
->type
);
208 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
212 struct psi_decl_arg
*arg
;
215 while (psi_plist_get(args
, i
++, &arg
)) {
216 if (!strcmp(name
, arg
->var
->name
)) {
224 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
225 struct psi_plist
*args
, struct psi_decl_arg
*func
)
227 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
230 assert(!var
->arg
|| var
->arg
== arg
);
232 return var
->arg
= arg
;
235 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
236 return var
->arg
= func
;