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 *******************************************************************************/
29 # include "php_config.h"
35 struct psi_decl_arg
*psi_decl_arg_init(struct psi_decl_type
*type
,
36 struct psi_decl_var
*var
)
38 struct psi_decl_arg
*arg
= pecalloc(1, sizeof(*arg
), 1);
39 arg
->token
= var
->token
;
46 void psi_decl_arg_free(struct psi_decl_arg
**arg_ptr
)
49 struct psi_decl_arg
*arg
= *arg_ptr
;
52 if (arg
->token
&& arg
->token
!= arg
->var
->token
) {
53 psi_token_free(&arg
->token
);
55 psi_decl_type_free(&arg
->type
);
56 psi_decl_var_free(&arg
->var
);
58 psi_layout_free(&arg
->layout
);
64 void psi_decl_arg_dump(struct psi_dump
*dump
, struct psi_decl_arg
*arg
, unsigned level
)
66 if (arg
->type
->type
== PSI_T_FUNCTION
) {
67 psi_decl_type_dump(dump
, arg
->type
->real
.func
->func
->type
, level
);
68 if (arg
->type
->real
.func
->func
->type
->type
== PSI_T_FUNCTION
) {
71 PSI_DUMP(dump
, " %s(*%s)",
72 psi_t_indirection(arg
->var
->pointer_level
- !! arg
->var
->array_size
),
75 if (arg
->type
->real
.func
->args
) {
77 struct psi_decl_arg
*farg
;
80 while (psi_plist_get(arg
->type
->real
.func
->args
, j
++, &farg
)) {
84 psi_decl_arg_dump(dump
, farg
, level
);
87 if (arg
->type
->real
.func
->varargs
) {
88 PSI_DUMP(dump
, ", ...");
92 if (arg
->type
->real
.func
->func
->type
->type
== PSI_T_FUNCTION
) {
93 struct psi_decl
*decl
= arg
->type
->real
.func
->func
->type
->real
.func
;
98 struct psi_decl_arg
*arg
;
100 for (i
= 0; psi_plist_get(decl
->args
, i
, &arg
); ++i
) {
102 PSI_DUMP(dump
, ", ");
104 psi_decl_arg_dump(dump
, arg
, 0);
107 PSI_DUMP(dump
, ", ...");
110 PSI_DUMP(dump
, "))");
113 psi_decl_type_dump(dump
, arg
->type
, level
);
115 psi_decl_var_dump(dump
, arg
->var
);
119 bool psi_decl_arg_validate(struct psi_data
*data
, struct psi_decl_arg
*arg
,
120 struct psi_validate_scope
*scope
)
122 if (!psi_decl_type_validate(data
, arg
->type
, NULL
, scope
)) {
123 if (!arg
->var
->pointer_level
) {
124 data
->error(data
, arg
->type
->token
, PSI_WARNING
,
125 "Cannot use '%s' as type for '%s'%s%s",
126 arg
->type
->name
->val
,
128 *data
->last_error
? ": " : "", data
->last_error
);
135 bool psi_decl_arg_validate_typedef(struct psi_data
*data
,
136 struct psi_decl_arg
*def
, struct psi_validate_scope
*scope
)
138 if (psi_validate_scope_has_type(scope
, def
->var
->name
)) {
141 psi_validate_scope_add_type(scope
, def
->var
->name
, def
);
143 if (def
->type
->type
== PSI_T_VOID
) {
144 if (def
->var
->pointer_level
) {
145 def
->type
->type
= PSI_T_POINTER
;
147 data
->error(data
, def
->token
, PSI_WARNING
,
148 "Type '%s' cannot be aliased to 'void'",
149 def
->type
->name
->val
);
152 } else if (!psi_decl_type_validate(data
, def
->type
, def
, scope
)) {
155 switch (def
->type
->type
) {
169 data
->error(data
, def
->token
, PSI_WARNING
,
170 "Type '%s' cannot be aliased to '%s%s'%s%s",
171 def
->var
->name
->val
, pre
,
172 def
->type
->name
->val
,
173 *data
->last_error
? ": " : "", data
->last_error
);
180 bool psi_decl_arg_is_pointer(struct psi_decl_arg
*darg
)
182 if (darg
->var
->pointer_level
) {
183 if (darg
->var
->array_size
) {
184 return darg
->var
->pointer_level
> 1;
187 } else if (psi_decl_type_is_weak(darg
->type
) && darg
->type
->real
.def
) {
188 return psi_decl_arg_is_pointer(darg
->type
->real
.def
);
193 size_t psi_decl_arg_align(struct psi_decl_arg
*darg
, size_t *pos
, size_t *len
)
195 size_t align
= psi_decl_arg_get_align(darg
);
198 *len
= psi_decl_arg_get_size(darg
);
199 *pos
= psi_align(align
, *pos
);
205 size_t psi_decl_arg_get_align(struct psi_decl_arg
*darg
)
209 if (psi_decl_arg_is_pointer(darg
)) {
210 align
= psi_t_alignment(PSI_T_POINTER
);
212 align
= psi_decl_type_get_align(darg
->type
);
218 size_t psi_decl_arg_get_size(struct psi_decl_arg
*darg
)
221 struct psi_decl_type
*real
= psi_decl_type_get_real(darg
->type
);
223 if (darg
->var
->array_size
&& darg
->var
->pointer_level
> 1) {
224 size
= psi_t_size(PSI_T_POINTER
) * darg
->var
->array_size
;
225 } else if (psi_decl_arg_is_pointer(darg
)) {
226 size
= psi_t_size(PSI_T_POINTER
);
228 switch (real
->type
) {
230 size
= real
->real
.unn
->size
;
233 size
= real
->real
.strct
->size
;
237 size
= psi_t_size(real
->type
);
241 if (darg
->var
->array_size
) {
242 size
*= darg
->var
->array_size
;
249 struct psi_decl_arg
*psi_decl_arg_get_by_name(struct psi_plist
*args
,
253 struct psi_decl_arg
*arg
;
256 while (psi_plist_get(args
, i
++, &arg
)) {
257 if (zend_string_equals(name
, arg
->var
->name
)) {
265 struct psi_decl_arg
*psi_decl_arg_get_by_var(struct psi_decl_var
*var
,
266 struct psi_plist
*args
, struct psi_decl_arg
*func
)
268 struct psi_decl_arg
*arg
= psi_decl_arg_get_by_name(args
, var
->name
);
271 assert(!var
->arg
|| var
->arg
== arg
);
273 return var
->arg
= arg
;
276 if (func
&& zend_string_equals(var
->name
, func
->var
->name
)) {
277 return var
->arg
= func
;