[clang] Fix compiler warnings

Makefile.linux

@@ -27,7 +27,7 @@ JERRY_LIBS = 		-ljerry-core -lm
 
 JERRY_LIB_PATH = 	-L$(JERRY_BASE)/build/lib/
 
-LINUX_FLAGS = -std=gnu99
+LINUX_FLAGS = -std=gnu99 -Wpointer-sign
 
 LINUX_DEFINES = -DZJS_LINUX_BUILD -DBUILD_MODULE_EVENTS
 

src/zjs_event.c

@@ -69,7 +69,7 @@ void zjs_add_event_listener(jerry_value_t obj, const char* event, jerry_value_t
     jerry_value_t id_prop = zjs_get_property(event_obj, "callback_id");
     if (jerry_value_is_number(id_prop)) {
         // If there already is an event object, get the callback ID
-        zjs_obj_get_uint32(event_obj, "callback_id", &callback_id);
+        zjs_obj_get_int32(event_obj, "callback_id", &callback_id);
     }
     callback_id = zjs_add_callback_list(listener, ev, pre_event, post_event, callback_id);
 
@@ -179,7 +179,7 @@ static jerry_value_t remove_listener(const jerry_value_t function_obj,
     jerry_value_t id_prop = zjs_get_property(event_obj, "callback_id");
     if (jerry_value_is_number(id_prop)) {
         // If there already is an event object, get the callback ID
-        zjs_obj_get_uint32(event_obj, "callback_id", &callback_id);
+        zjs_obj_get_int32(event_obj, "callback_id", &callback_id);
     } else {
         DBG_PRINT(("callback_id not found for '%s'\n", event));
         return ZJS_UNDEFINED;
@@ -225,15 +225,15 @@ static jerry_value_t remove_all_listeners(const jerry_value_t function_obj,
     jerry_value_t id_prop = zjs_get_property(event_obj, "callback_id");
     if (jerry_value_is_number(id_prop)) {
         // If there already is an event object, get the callback ID
-        zjs_obj_get_uint32(event_obj, "callback_id", &callback_id);
+        zjs_obj_get_int32(event_obj, "callback_id", &callback_id);
     } else {
         DBG_PRINT(("callback_id not found for '%s'\n", event));
         return ZJS_UNDEFINED;
     }
 
     zjs_remove_callback(callback_id);
 
-    jerry_value_t event_name_val = jerry_create_string(event);
+    jerry_value_t event_name_val = jerry_create_string((const jerry_char_t*)event);
     jerry_delete_property(ev->map, (const jerry_value_t)event_name_val);
     jerry_release_value(event_name_val);
 
@@ -353,7 +353,7 @@ static jerry_value_t get_listener_count(const jerry_value_t function_obj,
     jerry_value_t id_prop = zjs_get_property(event_obj, "callback_id");
     if (jerry_value_is_number(id_prop)) {
         // If there already is an event object, get the callback ID
-        zjs_obj_get_uint32(event_obj, "callback_id", &callback_id);
+        zjs_obj_get_int32(event_obj, "callback_id", &callback_id);
     } else {
         DBG_PRINT(("callback_id not found for '%s'\n", event));
         return ZJS_UNDEFINED;
@@ -397,7 +397,7 @@ static jerry_value_t get_listeners(const jerry_value_t function_obj,
     jerry_value_t id_prop = zjs_get_property(event_obj, "callback_id");
     if (jerry_value_is_number(id_prop)) {
         // If there already is an event object, get the callback ID
-        zjs_obj_get_uint32(event_obj, "callback_id", &callback_id);
+        zjs_obj_get_int32(event_obj, "callback_id", &callback_id);
     } else {
         DBG_PRINT(("callback_id not found for '%s'\n", event));
         return ZJS_UNDEFINED;
@@ -454,10 +454,8 @@ bool zjs_trigger_event(jerry_value_t obj,
         return false;
     }
 
-    zjs_obj_get_uint32(event_obj, "callback_id", &callback_id);
-    if (callback_id == -1) {
-        zjs_free(trigger);
-        DBG_PRINT(("callback_id not found\n"));
+    if (!zjs_obj_get_int32(event_obj, "callback_id", &callback_id)) {
+        DBG_PRINT("[event] zjs_trigger_event(): Error, callback_id not found\n");
         return false;
     }
 

src/zjs_util.c

@@ -53,7 +53,7 @@ void zjs_run_pending_callbacks()
 void zjs_set_property(const jerry_value_t obj, const char *str,
                       const jerry_value_t prop)
 {
-    jerry_value_t name = jerry_create_string((jerry_char_t *)str);
+    jerry_value_t name = jerry_create_string((const jerry_char_t *)str);
     jerry_set_property(obj, name, prop);
     jerry_release_value(name);
 }
@@ -73,7 +73,7 @@ void zjs_obj_add_boolean(jerry_value_t obj, bool flag, const char *name)
 {
     // requires: obj is an existing JS object
     //  effects: creates a new field in parent named name, set to value
-    jerry_value_t jname = jerry_create_string(name);
+    jerry_value_t jname = jerry_create_string((const jerry_char_t *)name);
     jerry_value_t jbool = jerry_create_boolean(flag);
     jerry_set_property(obj, jname, jbool);
     jerry_release_value(jname);
@@ -89,7 +89,7 @@ void zjs_obj_add_function(jerry_value_t obj, void *func, const char *name)
     // NOTE: The docs on this function make it look like func obj should be
     //   released before we return, but in a loop of 25k buffer creates there
     //   seemed to be no memory leak. Reconsider with future intelligence.
-    jerry_value_t jname = jerry_create_string(name);
+    jerry_value_t jname = jerry_create_string((const jerry_char_t *)name);
     jerry_value_t jfunc = jerry_create_external_function(func);
     if (jerry_value_is_function(jfunc)) {
         jerry_set_property(obj, jname, jfunc);
@@ -103,7 +103,7 @@ void zjs_obj_add_object(jerry_value_t parent, jerry_value_t child,
 {
     // requires: parent and child are existing JS objects
     //  effects: creates a new field in parent named name, that refers to child
-    jerry_value_t jname = jerry_create_string(name);
+    jerry_value_t jname = jerry_create_string((const jerry_char_t *)name);
     jerry_set_property(parent, jname, child);
     jerry_release_value(jname);
 }
@@ -112,8 +112,8 @@ void zjs_obj_add_string(jerry_value_t obj, const char *str, const char *name)
 {
     // requires: obj is an existing JS object
     //  effects: creates a new field in parent named name, set to sval
-    jerry_value_t jname = jerry_create_string(name);
-    jerry_value_t jstr = jerry_create_string(str);
+    jerry_value_t jname = jerry_create_string((const jerry_char_t *)name);
+    jerry_value_t jstr = jerry_create_string((const jerry_char_t *)str);
     jerry_set_property(obj, jname, jstr);
     jerry_release_value(jname);
     jerry_release_value(jstr);
@@ -123,7 +123,7 @@ void zjs_obj_add_number(jerry_value_t obj, double num, const char *name)
 {
     // requires: obj is an existing JS object
     //  effects: creates a new field in parent named name, set to nval
-    jerry_value_t jname = jerry_create_string(name);
+    jerry_value_t jname = jerry_create_string((const jerry_char_t *)name);
     jerry_value_t jnum = jerry_create_number(num);
     jerry_set_property(obj, jname, jnum);
     jerry_release_value(jname);
@@ -167,7 +167,7 @@ bool zjs_obj_get_string(jerry_value_t obj, const char *name, char *buffer,
     if (jlen >= len)
         return false;
 
-    int wlen = jerry_string_to_char_buffer(value, buffer, jlen);
+    int wlen = jerry_string_to_char_buffer(value, (jerry_char_t *)buffer, jlen);
     buffer[wlen] = '\0';
 
     jerry_release_value(value);
@@ -201,6 +201,19 @@ bool zjs_obj_get_uint32(jerry_value_t obj, const char *name, uint32_t *num)
     return true;
 }
 
+bool zjs_obj_get_int32(jerry_value_t obj, const char *name, int32_t *num)
+{
+    // requires: obj is an existing JS object, value name should exist as number
+    //  effects: retrieves field specified by name as a int32
+    jerry_value_t value = zjs_get_property(obj, name);
+    if (jerry_value_has_error_flag(value))
+        return false;
+
+    *num = (int32_t)jerry_get_number_value(value);
+    jerry_release_value(value);
+    return true;
+}
+
 bool zjs_hex_to_byte(char *buf, uint8_t *byte)
 {
     // requires: buf is a string with at least two hex chars

src/zjs_util.h

@@ -68,6 +68,7 @@ bool zjs_obj_get_string(jerry_value_t obj, const char *name, char *buffer,
                         int len);
 bool zjs_obj_get_double(jerry_value_t obj, const char *name, double *num);
 bool zjs_obj_get_uint32(jerry_value_t obj, const char *name, uint32_t *num);
+bool zjs_obj_get_int32(jerry_value_t obj, const char *name, int32_t *num);
 
 bool zjs_hex_to_byte(char *buf, uint8_t *byte);