11 PSI_Validator
*PSI_ValidatorInit(PSI_Validator
*V
, PSI_Parser
*P
)
14 V
= malloc(sizeof(*V
));
16 memset(V
, 0, sizeof(*V
));
18 PSI_DataExchange((PSI_Data
*) V
, (PSI_Data
*) P
);
23 void PSI_ValidatorDtor(PSI_Validator
*V
)
25 PSI_DataDtor((PSI_Data
*) V
);
26 memset(V
, 0, sizeof(*V
));
29 void PSI_ValidatorFree(PSI_Validator
**V
)
32 PSI_ValidatorDtor(*V
);
38 static int validate_lib(PSI_Validator
*V
) {
40 const char *ptr
= V
->lib
;
44 /* FIXME: assume stdlib */
46 } else if (!strchr(ptr
, '/')) {
48 len
= snprintf(lib
, MAXPATHLEN
, "lib%s.dylib", ptr
);
50 len
= snprintf(lib
, MAXPATHLEN
, "lib%s.so", ptr
);
52 if (MAXPATHLEN
== len
) {
53 V
->error(PSI_WARNING
, "Library name too long: '%s'", ptr
);
58 if (!(V
->dlopened
= dlopen(ptr
, RTLD_LAZY
|RTLD_LOCAL
))) {
59 V
->error(PSI_WARNING
, "Could not open library '%s': %s.", V
->lib
, dlerror());
64 static inline int locate_decl_type_alias(decl_typedefs
*defs
, decl_type
*type
) {
70 for (i
= 0; i
< defs
->count
; ++i
) {
71 if (!strcmp(defs
->list
[i
]->alias
, type
->name
)) {
72 type
->real
= defs
->list
[i
]->type
;
78 static inline int validate_decl_type(PSI_Validator
*V
, decl_arg
*arg
, decl_type
*type
) {
79 if (type
->type
== PSI_T_NAME
) {
80 if (!V
->defs
|| !locate_decl_type_alias(V
->defs
, type
)) {
81 V
->error(PSI_WARNING
, "Cannot use '%s' as type for '%s';"
82 " Use 'typedef <type> <basic_type>;' statement",
83 type
->name
, arg
->var
->name
);
89 static inline int validate_typedef(PSI_Validator
*V
, decl_typedef
*def
) {
90 /* FIXME: check def->alias */
91 if (def
->type
->type
== PSI_T_NAME
) {
92 V
->error(PSI_WARNING
, "Type '%s' cannot be aliased to '%s'",
93 def
->type
->name
, def
->alias
);
98 static inline int validate_typedefs(PSI_Validator
*V
) {
101 for (i
= 0; i
< V
->defs
->count
; ++i
) {
102 if (!validate_typedef(V
, V
->defs
->list
[i
])) {
109 static inline int validate_decl_func(PSI_Validator
*V
, decl
*decl
, decl_arg
*func
)
111 if (!strcmp(func
->var
->name
, "dlsym")) {
112 V
->error(PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
116 if (!validate_decl_type(V
, func
, func
->type
)) {
120 decl
->dlptr
= dlsym(V
->dlopened
, func
->var
->name
);
122 V
->error(PSI_WARNING
, "Failed to located symbol '%s': %s",
123 func
->var
->name
, dlerror());
127 static inline int validate_decl_abi(PSI_Validator
*V
, decl_abi
*abi
) {
128 if (strcasecmp(abi
->convention
, "default")) {
129 V
->error(PSI_WARNING
, "Invalid calling convention: '%s'", abi
->convention
);
135 static inline int validate_decl_arg(PSI_Validator
*V
, decl
*decl
, decl_arg
*arg
) {
136 if (!validate_decl_type(V
, arg
, arg
->type
)) {
141 static inline int validate_decl_args(PSI_Validator
*V
, decl
*decl
, decl_args
*args
) {
144 for (i
= 0; i
< args
->count
; ++i
) {
145 if (!validate_decl_arg(V
, decl
, args
->args
[i
])) {
151 static inline int validate_decl(PSI_Validator
*V
, decl
*decl
) {
152 if (!validate_decl_abi(V
, decl
->abi
)) {
155 if (!validate_decl_func(V
, decl
, decl
->func
)) {
158 if (decl
->args
&& !validate_decl_args(V
, decl
, decl
->args
)) {
163 static inline int validate_decls(PSI_Validator
*V
) {
166 for (i
= 0; i
< V
->decls
->count
; ++i
) {
167 if (!validate_decl(V
, V
->decls
->list
[i
])) {
174 static inline int validate_impl_type(PSI_Validator
*V
, impl
*impl
, impl_type
*type
) {
178 static inline int validate_impl_arg(PSI_Validator
*V
, impl
*impl
, impl_arg
*arg
) {
181 static inline int validate_impl_args(PSI_Validator
*V
, impl
*impl
, impl_args
*args
) {
184 for (i
= 0; i
< args
->count
; ++i
) {
185 if (!validate_impl_arg(V
, impl
, args
->args
[i
])) {
191 static inline int validate_impl_func(PSI_Validator
*V
, impl
*impl
, impl_func
*func
) {
192 /* FIXME: does name need any validation? */
193 if (!validate_impl_type(V
, impl
, func
->return_type
)) {
196 if (func
->args
&& !validate_impl_args(V
, impl
, func
->args
)) {
201 static inline decl
*locate_impl_decl(decls
*decls
, ret_stmt
*ret
) {
204 for (i
= 0; i
< decls
->count
; ++i
) {
205 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->decl
->name
)) {
206 return decls
->list
[i
];
212 static inline int validate_impl_stmts(PSI_Validator
*V
, impl
*impl
, impl_stmts
*stmts
) {
214 * - we must have exactly one ret stmt delcaring the native func to call and which type cast to apply
215 * - we can have multiple let stmts; every arg of the ret stmts var (the function to call) must have one
216 * - we can have any count of set stmts; processing out vars, etc.
223 V
->error(PSI_WARNING
, "Missing body for implementation %s!",
227 if (stmts
->ret
.count
!= 1) {
228 if (stmts
->ret
.count
> 1) {
229 V
->error(PSI_WARNING
, "Too many `ret` statements for implmentation %s;"
230 "found %zu, exactly one is needed",
231 impl
->func
->name
, stmts
->ret
.count
);
233 V
->error(PSI_WARNING
, "Missing `ret` statement for implementation %s",
239 ret
= stmts
->ret
.list
[0];
240 decl
= locate_impl_decl(V
->decls
, ret
);
242 V
->error(PSI_WARNING
, "Missing declaration for implementation %s",
247 /* check that we have a let stmt for every decl arg */
248 for (i
= 0; i
< decl
->args
->count
; ++i
) {
249 decl_arg
*darg
= decl
->args
->args
[i
];
252 for (j
= 0; j
< stmts
->let
.count
; ++j
) {
253 let_stmt
*let
= stmts
->let
.list
[j
];
255 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
262 V
->error(PSI_WARNING
, "Missing `let` statement for arg '%s %.*s%s'"
263 "of declaration '%s' for implementation '%s'",
264 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
265 darg
->var
->name
, decl
->func
->var
->name
, impl
->func
->name
);
269 /* check that the let_value references a known variable or NULL */
270 for (i
= 0; i
< stmts
->let
.count
; ++i
) {
271 let_stmt
*let
= stmts
->let
.list
[i
];
275 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
276 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
278 if (!strcmp(let
->val
->var
->name
, iarg
->var
->name
)) {
285 V
->error(PSI_WARNING
, "Unknown value '$%s' of `let` statement"
286 " for variable '%s' of implementation '%s'",
287 let
->val
->var
->name
, let
->var
->name
, impl
->func
->name
);
298 static inline int validate_impl(PSI_Validator
*V
, impl
*impl
) {
299 if (!validate_impl_func(V
, impl
, impl
->func
)) {
302 if (!validate_impl_stmts(V
, impl
, impl
->stmts
)) {
307 static inline int validate_impls(PSI_Validator
*V
) {
310 for (i
= 0; i
< V
->impls
->count
; ++i
) {
311 if (!validate_impl(V
, V
->impls
->list
[i
])) {
318 int PSI_ValidatorValidate(PSI_Validator
*V
)
320 if (!validate_lib(V
)) {
323 if (V
->defs
&& !validate_typedefs(V
)) {
326 if (V
->decls
&& !validate_decls(V
)) {
329 if (V
->impls
&& !validate_impls(V
)) {