Step 200: startup and performance improvements

editor/tests/step200_test.cpp

@@ -0,0 +1,37 @@
+// Step 200: Startup and panel performance.
+
+#include <cassert>
+#include <fstream>
+#include <string>
+
+static std::string readFile(const std::string& path) {
+    std::ifstream f(path);
+    if (!f.is_open()) return {};
+    return std::string((std::istreambuf_iterator<char>(f)),
+                       std::istreambuf_iterator<char>());
+}
+
+static void assertContains(const std::string& text, const std::string& needle) {
+    assert(text.find(needle) != std::string::npos);
+}
+
+int main() {
+    const std::string settings = readFile("src/SettingsManager.h");
+    const std::string editorState = readFile("src/EditorState.h");
+    const std::string mainSrc = readFile("src/main.cpp");
+    const std::string editorPanel = readFile("src/panels/EditorPanel.h");
+
+    assertContains(settings, "getLspDebounceMs");
+    assertContains(settings, "getDiagnosticsDebounceMs");
+    assertContains(settings, "getHighlightDebounceMs");
+
+    assertContains(editorState, "flushDeferredAstSync");
+    assertContains(editorState, "flushLspDidChange");
+    assertContains(editorState, "pendingAstSync");
+
+    assertContains(editorPanel, "getDiagnosticsDebounceMs");
+    assertContains(mainSrc, "Frame time exceeded 16ms");
+
+    printf("step200_test: all assertions passed\n");
+    return 0;
+}