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
) {
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", 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'",
143 def
->type
->name
->val
);
146 } else if (!psi_decl_type_validate(data
, def
->type
, def
, scope
)) {
149 switch (def
->type
->type
) {
163 data
->error(data
, def
->token
, PSI_WARNING
,
164 "Type '%s' cannot be aliased to '%s%s'%s%s",
165 def
->var
->name
->val
, pre
,
166 def
->type
->name
->val
,
167 *data
->last_error
? ": " : "", data
->last_error
);
174 bool psi_decl_arg_is_pointer(struct psi_decl_arg
*darg
)
176 if (darg
->var
->pointer_level
) {
177 if (darg
->var
->array_size
) {
178 return darg
->var
->pointer_level
> 1;
181 } else if (psi_decl_type_is_weak(darg
->type
) && darg
->type
->real
.def
) {
182 return psi_decl_arg_is_pointer(darg
->type
->real
.def
);
187 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
189 size_t align
= psi_decl_arg_get_align(darg
);
192 *len
= psi_decl_arg_get_size(darg
);
193 *pos
= psi_align(align
, *pos
);
199 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
203 if (psi_decl_arg_is_pointer(darg
)) {
204 align
= psi_t_alignment(PSI_T_POINTER
);
206 align
= psi_decl_type_get_align(darg
->type
);
212 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
215 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
217 if (darg
->var
->array_size
&& darg
->var
->pointer_level
> 1) {
218 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
219 } else if (psi_decl_arg_is_pointer(darg
)) {
220 size
= psi_t_size(PSI_T_POINTER
);
222 switch (real
->type
) {
224 size
= real
->real
.unn
->size
;
227 size
= real
->real
.strct
->size
;
231 size
= psi_t_size(real
->type
);
235 if (darg
->var
->array_size
) {
236 size
*= darg
->var
->array_size
;
243 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
247 struct psi_decl_arg
*arg
;
250 while (psi_plist_get(args
, i
++, &arg
)) {
251 if (zend_string_equals(name
, arg
->var
->name
)) {
259 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
260 struct psi_plist
*args
, struct psi_decl_arg
*func
)
262 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
265 assert(!var
->arg
|| var
->arg
== arg
);
267 return var
->arg
= arg
;
270 if (func
&& zend_string_equals(var
->name
, func
->var
->name
)) {
271 return var
->arg
= func
;