Implement global struct

src/compiler.bbb

@@ -151,7 +151,31 @@ arena_initialize = fn (initialization: ArenaInitialization) &Arena
     return arena;
 }
 
+arena_initialize_default = fn (initial_size: u64) &Arena
+{
+    return arena_initialize({
+        .reserved_size = 4 * 1024 * 1024 * 1024,
+        .granularity = 4 * 1024,
+        .initial_size = initial_size,
+    });
+}
+
+GlobalState = struct
+{
+    arena: &Arena,
+}
+
+global_state: GlobalState = undefined;
+
+global_state_initialize = fn () void
+{
+    global_state = {
+        .arena = arena_initialize_default(2 * 1024 * 1024),
+    };
+}
+
 [export] main = fn [cc(c)] () s32
 {
+    global_state_initialize();
     return 0;
 }

src/converter_test.zig

@@ -416,3 +416,7 @@ test "pointer_cast" {
 test "struct_assignment" {
     try invsrc(@src());
 }
+
+test "global_struct" {
+    try invsrc(@src());
+}

tests/global_struct.bbb

@@ -0,0 +1,28 @@
+S = struct
+{
+    a: u32,
+    b: u32,
+    c: u32,
+}
+
+s: S = {
+    .a = 1,
+    .b = 2,
+    .c = 3,
+};
+
+require = fn (ok: u1) void
+{
+    if (!ok)
+    {
+        #trap();
+    }
+}
+
+[export] main = fn () s32
+{
+    require(s.a == 1);
+    require(s.b == 2);
+    require(s.c == 3);
+    return 0;
+}