* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/*
- * This simple program expands the object { "$ref": "#/path/to/a/target" }
- *
- * For example:
- *
- * {
- * "type":{
- * "a": "int",
- * "b": { "$ref": "#/type/a" }
- * }
- * }
- *
- * will be exapanded to
- *
- * {
- * "type":{
- * "a": "int",
- * "b": "int"
- * }
- * }
- *
- * Invocation: program [file|-]...
- *
- * without arguments, it reads the input.
- */
#define _GNU_SOURCE
#include <string.h>
#include <json-c/json.h>
-#define T(x) ((x) && *(x))
-#define oom(x) do{if(!(x)){fprintf(stderr,"out of memory\n");exit(1);}}while(0)
+#include "getref.h"
+#include "exprefs.h"
+#include "json2c.h"
-/**
- * records path to the expanded node
- */
-struct path
-{
- struct json_object *object; /**< node being expanded */
- struct path *upper; /**< link to upper expanded nodes */
-};
+#define TEST(x) ((x) && *(x))
+#define OOM(x) do{if(!(x)){fprintf(stderr,"out of memory\n");exit(1);}}while(0)
/**
* root of the JSON being parsed
const char *provideclass = NULL;
const char *requireclass = NULL;
const char *requireapi = NULL;
+const char *info = NULL;
char *capi = NULL;
int priv = -1;
int noconc = -1;
int cpp = 0;
+enum idl {
+ idl_afbidl = 0,
+ idl_openapi = 1
+} idl = idl_openapi;
-/**
- * Search for a reference of type "#/a/b/c" in the
- * parsed JSON object (root)
- */
-struct json_object *search(const char *path)
-{
- char *d;
- struct json_object *i;
-
- /* does it match #/ at the beginning? */
- if (path[0] != '#' || (path[0] && path[1] != '/'))
- return NULL;
-
- /* search from root to target */
- i = root;
- d = strdupa(path+2);
- d = strtok(d, "/");
- while(i && d) {
- if (!json_object_object_get_ex(i, d, &i))
- return NULL;
- d = strtok(NULL, "/");
- }
- return i;
-}
-
-/**
- * Expands the node designated by path and returns its expanded form
- */
-struct json_object *expand_$ref(struct path path)
-{
- struct path *p;
- struct json_object *o, *x;
- int n, i;
- struct json_object_iterator ji, jn;
-
- /* expansion depends of the type of the node */
- switch (json_object_get_type(path.object)) {
- case json_type_object:
- /* for object, look if it contains a property "$ref" */
- if (json_object_object_get_ex(path.object, "$ref", &o)) {
- /* yes, reference, try to substitute its target */
- if (!json_object_is_type(o, json_type_string)) {
- fprintf(stderr, "found a $ref not being string. Is: %s\n", json_object_get_string(o));
- exit(1);
- }
- x = search(json_object_get_string(o));
- if (!x) {
- fprintf(stderr, "$ref not found. Was: %s\n", json_object_get_string(o));
- exit(1);
- }
- p = &path;
- while(p) {
- if (x == p->object) {
- fprintf(stderr, "$ref recursive. Was: %s\n", json_object_get_string(o));
- exit(1);
- }
- p = p->upper;
- }
- /* cool found, return a new instance of the target */
- return json_object_get(x);
- }
- /* no, expand the values */
- ji = json_object_iter_begin(path.object);
- jn = json_object_iter_end(path.object);
- while (!json_object_iter_equal(&ji, &jn)) {
- o = json_object_iter_peek_value(&ji);
- x = expand_$ref((struct path){ .object = o, .upper = &path });
- if (x != o)
- json_object_object_add(path.object, json_object_iter_peek_name(&ji), x);
- json_object_iter_next(&ji);
- }
- break;
- case json_type_array:
- /* expand the values of arrays */
- i = 0;
- n = (int)json_object_array_length(path.object);
- while (i != n) {
- o = json_object_array_get_idx(path.object, i);
- x = expand_$ref((struct path){ .object = o, .upper = &path });
- if (x != o)
- json_object_array_put_idx(path.object, i, x);
- i++;
- }
- break;
- default:
- /* otherwise no expansion */
- break;
- }
- /* return the given node */
- return path.object;
-}
/* create c name by replacing non alpha numeric characters with underscores */
char *cify(const char *str)
return r;
}
-/* format the specification as a C string */
-char *make_info(const char *text, int split)
-{
- const char *a, *b;
- char *desc, c, buf[3] = {0};
- size_t len;
- int i, pos, e;
-
- /* estimated length */
- a = b = text;
- len = 1;
- while((c = *b++)) {
- len += 1 + ('"' == c);
- }
-
- len += 7 * (1 + len / 72);
- desc = malloc(len);
- oom(desc);
-
- len = pos = 0;
- if (!split)
- desc[len++] = '"';
- b = a;
- while((c = *b++)) {
- if (c == '"') {
- buf[0] = '\\';
- buf[1] = '"';
- buf[2] = 0;
- }
- else if (c == '\\') {
- switch ((c = *b++)) {
- case 0:
- b--;
- buf[0] = 0;
- break;
- case '/':
- buf[0] = '/';
- buf[1] = 0;
- break;
- default:
- buf[0] = '\\';
- buf[1] = c;
- buf[2] = 0;
- break;
- }
- }
- else {
- buf[0] = c;
- buf[1] = 0;
- }
- i = e = 0;
- while (buf[i]) {
- if (split) {
- if (pos >= 77 && !e) {
- desc[len++] = '"';
- desc[len++] = '\n';
- pos = 0;
- }
- if (pos == 0) {
- desc[len++] = ' ';
- desc[len++] = ' ';
- desc[len++] = ' ';
- desc[len++] = ' ';
- desc[len++] = '"';
- pos = 5;
- }
- }
- c = buf[i++];
- desc[len++] = c;
- e = !e && c == '\\';
- pos++;
- }
- }
- desc[len++] = '"';
- if (split)
- desc[len++] = '\n';
- desc[len] = 0;
- return desc;
-}
-
-/* make the description of the object */
-char *make_desc(struct json_object *o)
-{
- return make_info(json_object_to_json_string_ext(o, 0), 1);
-}
-
/* get the permission odescription if set */
struct json_object *permissions_of_verb(struct json_object *obj)
{
struct json_object *x, *y;
+ if (idl == idl_afbidl)
+ return json_object_object_get_ex(obj, "permissions", &x) ? x : NULL;
+
if (json_object_object_get_ex(obj, "x-permissions", &x))
return x;
void print_declare_verb(const char *name, struct json_object *obj)
{
- if (T(scope))
+ if (TEST(scope))
printf("%s ", scope);
printf("void ");
print_verb(name);
" .auth = %s,\n"
" .info = %s,\n"
, p && decl_perm(p) ? json_object_get_string(decl_perm(p)) : "NULL"
- , info ? make_info(info, 0) : "NULL"
+ , info ? str2c_inl(info) : "NULL"
);
if (version == 3)
printf(
);
}
-void enum_verbs(void (*func)(const char *name, struct json_object *obj))
+void getvarbool(int *var, const char *path, int defval)
+{
+ struct json_object *o;
+
+ if (*var != 0 && *var != 1) {
+ o = get$ref(root, path);
+ if (o && json_object_is_type(o, json_type_boolean))
+ *var = json_object_get_boolean(o);
+ else
+ *var = !!defval;
+ }
+}
+
+void getvar(const char **var, const char *path, const char *defval)
+{
+ struct json_object *o;
+
+ if (!*var) {
+ o = get$ref(root, path);
+ if (o && json_object_is_type(o, json_type_string))
+ *var = json_object_get_string(o);
+ else
+ *var = defval;
+ }
+}
+
+/******************************************************************************/
+
+void openapi_getvars()
+{
+ getvar(&api, "#/info/x-binding-c-generator/api", NULL);
+ getvar(&preinit, "#/info/x-binding-c-generator/preinit", NULL);
+ getvar(&init, "#/info/x-binding-c-generator/init", NULL);
+ getvar(&onevent, "#/info/x-binding-c-generator/onevent", NULL);
+ getvar(&scope, "#/info/x-binding-c-generator/scope", "static");
+ getvar(&prefix, "#/info/x-binding-c-generator/prefix", "afb_verb_");
+ getvar(&postfix, "#/info/x-binding-c-generator/postfix", "_cb");
+ getvar(&provideclass, "#/info/x-binding-c-generator/provide-class", NULL);
+ getvar(&requireclass, "#/info/x-binding-c-generator/require-class", NULL);
+ getvar(&requireapi, "#/info/x-binding-c-generator/require-api", NULL);
+ getvarbool(&priv, "#/info/x-binding-c-generator/private", 0);
+ getvarbool(&noconc, "#/info/x-binding-c-generator/noconcurrency", 0);
+ getvar(&api, "#/info/title", "?");
+ getvar(&info, "#/info/description", NULL);
+}
+
+void openapi_enum_verbs(void (*func)(const char *name, struct json_object *obj))
{
struct json_object_iterator ji, jn;
struct json_object *paths, *obj;
const char *name;
/* search the verbs */
- paths = search("#/paths");
+ paths = get$ref(root, "#/paths");
if (!paths)
return;
}
}
-void getvarbool(int *var, const char *path, int defval)
+/******************************************************************************/
+
+void afbidl_getvars()
{
- struct json_object *o;
+ getvar(&preinit, "#/generator/genskel/preinit", NULL);
+ getvar(&init, "#/generator/genskel/init", NULL);
+ getvar(&onevent, "#/generator/genskel/onevent", NULL);
+ getvar(&scope, "#/generator/genskel/scope", "static");
+ getvar(&prefix, "#/generator/genskel/prefix", "afb_verb_");
+ getvar(&postfix, "#/generator/genskel/postfix", "_cb");
+ getvar(&provideclass, "#/generator/genskel/provide-class", NULL);
+ getvar(&requireclass, "#/generator/genskel/require-class", NULL);
+ getvar(&requireapi, "#/generator/genskel/require-api", NULL);
+ getvarbool(&priv, "#/generator/genskel/private", 0);
+ getvarbool(&noconc, "#/generator/genskel/noconcurrency", 0);
+ getvar(&api, "#/api/name", NULL);
+ getvar(&api, "#/info/title", "?");
+ getvar(&info, "#/info/description", NULL);
+}
- if (*var != 0 && *var != 1) {
- o = search(path);
- if (o && json_object_is_type(o, json_type_boolean))
- *var = json_object_get_boolean(o);
- else
- *var = !!defval;
+void afbidl_enum_verbs(void (*func)(const char *name, struct json_object *obj))
+{
+ struct json_object_iterator ji, jn;
+ struct json_object *verbs, *obj;
+ const char *name;
+
+ /* search the verbs */
+ verbs = get$ref(root, "#/api/verbs");
+ if (!verbs)
+ return;
+
+ /* list the verbs and sort it */
+ ji = json_object_iter_begin(verbs);
+ jn = json_object_iter_end(verbs);
+ while (!json_object_iter_equal(&ji, &jn)) {
+ name = json_object_iter_peek_name(&ji);
+ obj = json_object_iter_peek_value(&ji);
+ func(name, obj);
+ json_object_iter_next(&ji);
}
}
-void getvar(const char **var, const char *path, const char *defval)
+/******************************************************************************/
+
+void detectidl()
{
struct json_object *o;
- if (!*var) {
- o = search(path);
- if (o && json_object_is_type(o, json_type_string))
- *var = json_object_get_string(o);
- else
- *var = defval;
+ o = get$ref(root, "#/openapi");
+ if (o) {
+ idl = idl_openapi;
+ return;
+ }
+ o = get$ref(root, "#/afbidl");
+ if (o) {
+ idl = idl_afbidl;
+ return;
}
}
void process(char *filename)
{
char *desc;
- const char *info;
+
+ void (*getvars)();
+ void (*enum_verbs)(void (*)(const char*, struct json_object*));
/* translate - */
if (!strcmp(filename, "-"))
exit(1);
}
- /* create the description */
- desc = make_desc(root);
+ /* create the description (before expanding $ref ) */
+ desc = json2c_std(root);
/* expand references */
- root = expand_$ref((struct path){ .object = root, .upper = NULL });
+ root = exp$refs(root);
+
+ /* detect the idl */
+ detectidl();
+ switch(idl) {
+ default:
+ case idl_afbidl:
+ getvars = afbidl_getvars;
+ enum_verbs = afbidl_enum_verbs;
+ break;
+ case idl_openapi:
+ getvars = openapi_getvars;
+ enum_verbs = openapi_enum_verbs;
+ break;
+ }
/* get some names */
- getvar(&api, "#/info/x-binding-c-generator/api", NULL);
- getvar(&preinit, "#/info/x-binding-c-generator/preinit", NULL);
- getvar(&init, "#/info/x-binding-c-generator/init", NULL);
- getvar(&onevent, "#/info/x-binding-c-generator/onevent", NULL);
- getvar(&scope, "#/info/x-binding-c-generator/scope", "static");
- getvar(&prefix, "#/info/x-binding-c-generator/prefix", "afb_verb_");
- getvar(&postfix, "#/info/x-binding-c-generator/postfix", "_cb");
- getvar(&provideclass, "#/info/x-binding-c-generator/provide-class", NULL);
- getvar(&requireclass, "#/info/x-binding-c-generator/require-class", NULL);
- getvar(&requireapi, "#/info/x-binding-c-generator/require-api", NULL);
- getvarbool(&priv, "#/info/x-binding-c-generator/private", 0);
- getvarbool(&noconc, "#/info/x-binding-c-generator/noconcurrency", 0);
- getvar(&api, "#/info/title", "?");
- info = NULL;
- getvar(&info, "#/info/description", NULL);
+ getvars();
capi = cify(api);
/* get the API name */
);
printf(
"\n"
- " }\n"
+ " }\n"
"};\n"
);
- if (T(preinit) || T(init) || T(onevent)) {
+ if (TEST(preinit) || TEST(init) || TEST(onevent)) {
printf("\n");
- if (T(preinit)) {
- if (T(scope)) printf("%s ", scope);
+ if (TEST(preinit)) {
+ if (TEST(scope)) printf("%s ", scope);
printf("int %s(%s);\n", preinit, version==3 ? "afb_api_t api" : "");
}
- if (T(init)) {
- if (T(scope)) printf("%s ", scope);
+ if (TEST(init)) {
+ if (TEST(scope)) printf("%s ", scope);
printf("int %s(%s);\n", init, version==3 ? "afb_api_t api" : "");
}
- if (T(onevent)) {
- if (T(scope)) printf("%s ", scope);
+ if (TEST(onevent)) {
+ if (TEST(scope)) printf("%s ", scope);
printf("void %s(%sconst char *event, struct json_object *object);\n",
onevent, version==3 ? "afb_api_t api, " : "");
}
, priv ? capi : ""
, api
, capi
- , info ? make_info(info, 0) : "NULL"
+ , info ? str2c_inl(info) : "NULL"
, capi
- , T(preinit) ? preinit : "NULL"
- , T(init) ? init : "NULL"
- , T(onevent) ? onevent : "NULL"
+ , TEST(preinit) ? preinit : "NULL"
+ , TEST(init) ? init : "NULL"
+ , TEST(onevent) ? onevent : "NULL"
);
" .provide_class = %s%s%s,\n"
" .require_class = %s%s%s,\n"
" .require_api = %s%s%s,\n"
- , T(provideclass) ? "\"" : "", T(provideclass) ? provideclass : "NULL", T(provideclass) ? "\"" : ""
- , T(requireclass) ? "\"" : "", T(requireclass) ? requireclass : "NULL", T(requireclass) ? "\"" : ""
- , T(requireapi) ? "\"" : "", T(requireapi) ? requireapi : "NULL", T(requireapi) ? "\"" : ""
+ , TEST(provideclass) ? "\"" : "", TEST(provideclass) ? provideclass : "NULL", TEST(provideclass) ? "\"" : ""
+ , TEST(requireclass) ? "\"" : "", TEST(requireclass) ? requireclass : "NULL", TEST(requireclass) ? "\"" : ""
+ , TEST(requireapi) ? "\"" : "", TEST(requireapi) ? requireapi : "NULL", TEST(requireapi) ? "\"" : ""
);
Code Review / src / app-framework-binder.git / blobdiff