iOS lock step keyboard + metal

src/core.zig

@@ -25,6 +25,7 @@ pub const Compilation = struct {
     resolved_root: ?*Node = null,
     import_sources: std.StringHashMap([:0]const u8),
     module_scopes: std.StringHashMap(std.StringHashMap(void)),
+    import_graph: std.StringHashMap(std.StringHashMap(void)),
     sema_result: ?sema.SemaResult = null,
     ir_emitter: ?ir.LLVMEmitter = null,
 
@@ -37,6 +38,7 @@ pub const Compilation = struct {
             .diagnostics = errors.DiagnosticList.init(allocator, source, file_path),
             .import_sources = std.StringHashMap([:0]const u8).init(allocator),
             .module_scopes = std.StringHashMap(std.StringHashMap(void)).init(allocator),
+            .import_graph = std.StringHashMap(std.StringHashMap(void)).init(allocator),
             .target_config = target_config,
             .stdlib_paths = stdlib_paths,
         };
@@ -69,6 +71,7 @@ pub const Compilation = struct {
             &self.import_sources,
             &self.diagnostics,
             self.stdlib_paths,
+            &self.import_graph,
         ) catch return error.CompileError;
 
         // Preserve per-module visibility scopes for C import access checking
@@ -162,6 +165,7 @@ pub const Compilation = struct {
         lowering.target_config = self.target_config;
         lowering.diagnostics = &self.diagnostics;
         lowering.module_scopes = &self.module_scopes;
+        lowering.import_graph = &self.import_graph;
         lowering.lowerRoot(root);
         if (self.diagnostics.hasErrors()) return error.CompileError;
         return module;