Properly link flecs library

engine/libs/flecs/examples/c/reflection/ser_opaque_string/include/ser_opaque_string.h

@@ -0,0 +1,16 @@
+#ifndef SER_OPAQUE_STRING_H
+#define SER_OPAQUE_STRING_H
+
+/* This generated file contains includes for project dependencies */
+#include "ser_opaque_string/bake_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+

engine/libs/flecs/examples/c/reflection/ser_opaque_string/include/ser_opaque_string/bake_config.h

@@ -0,0 +1,24 @@
+/*
+                                   )
+                                  (.)
+                                  .|.
+                                  | |
+                              _.--| |--._
+                           .-';  ;`-'& ; `&.
+                          \   &  ;    &   &_/
+                           |"""---...---"""|
+                           \ | | | | | | | /
+                            `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef SER_OPAQUE_STRING_BAKE_CONFIG_H
+#define SER_OPAQUE_STRING_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+
+#endif
+

engine/libs/flecs/examples/c/reflection/ser_opaque_string/project.json

@@ -0,0 +1,10 @@
+{
+    "id": "ser_opaque_string",
+    "type": "application",
+    "value": {
+        "use": [
+            "flecs"
+        ],
+        "public": false
+    }
+}

engine/libs/flecs/examples/c/reflection/ser_opaque_string/src/main.c

@@ -0,0 +1,65 @@
+#include <ser_opaque_string.h>
+#include <stdio.h>
+
+// Simple string type
+typedef struct {
+    char *value;
+} String;
+
+// Reflection support for String
+int String_serialize(const ecs_serializer_t *ser, const void *ptr) {
+    const String *data = ptr;
+    return ser->value(ser, ecs_id(ecs_string_t), &data->value);
+}
+
+static void String_assign_string(void *ptr, const char *value) {
+    String *data = ptr;
+
+    if (data->value) {
+        ecs_os_free(data->value);
+    }
+
+    data->value = ecs_os_strdup(value);
+}
+
+int main(int argc, char *argv[]) {
+    ecs_world_t *ecs = ecs_init_w_args(argc, argv);
+
+    // Register type as component so the size is known
+    ECS_COMPONENT(ecs, String);
+
+    // Register String as opaque type. An opaque type is a type of which the
+    // reflection framework doesn't know the layout, but which it can serialize.
+    ecs_opaque(ecs, {
+        // Link reflection with component
+        .entity = ecs_id(String),
+        // Let reflection framework know the type represents a string
+        .type.as_type = ecs_id(ecs_string_t),
+        // Register functions for de/serializing vector contents
+        .type.serialize = String_serialize,
+        .type.assign_string = String_assign_string
+    });
+
+    String v = {0};
+
+    // Deserialize new value into string
+    ecs_ptr_from_json(ecs, ecs_id(String), &v, "\"Hello World\"", NULL);
+
+    // Print string contents
+    printf("%s\n", v.value);
+
+    // Serialize string contents to JSON
+    char *json = ecs_ptr_to_json(ecs, ecs_id(String), &v);
+    printf("%s\n", json);
+    ecs_os_free(json);
+
+    // Free string. If this type were used as a component, we could
+    // register a dtor to do this for us (see the entity/hooks example).
+    ecs_os_free(v.value);
+
+    ecs_fini(ecs);
+
+    // Output
+    //   Hello World
+    //   "Hello World"
+}