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packages/compiler/src/index.ts

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+/**
+ * @wrnexus/compiler — the `.wrn` language compiler.
+ *
+ * Pipeline:  source ──▶ Lexer ──▶ parse() ──▶ AST ──▶ generate() ──▶ TypeScript
+ *
+ * See VISION.md for the language design. The MVP supports `page` with `state`,
+ * `view`, `api`, and `realtime` blocks, lowering to the framework's primitives.
+ */
+
+import { parse, ParseError, type PageAst } from "./parser.ts";
+import { generate } from "./codegen.ts";
+import { generateNative } from "./native-codegen.ts";
+
+export { parse, ParseError } from "./parser.ts";
+export { generate } from "./codegen.ts";
+export { generateNative, NativeCompileError } from "./native-codegen.ts";
+export { Lexer, LexError } from "./tokenizer.ts";
+export type {
+  PageAst,
+  SeoBlock,
+  ViewNode,
+  Attr,
+  StateDecl,
+  ApiBlock,
+  DataApiBlock,
+  DataMode,
+  ModeFunctionsBlock,
+  RealtimeBlock,
+} from "./parser.ts";
+
+export interface CompileResult {
+  code: string;
+  ast: PageAst;
+  diagnostics: string[];
+}
+
+/** Compile `.wrn` source into an Expo Router React Native screen. */
+export function compileNativeWireFile(source: string): string {
+  return generateNative(parse(source));
+}
+
+/**
+ * Compile `.wrn` source into TypeScript source. Throws `ParseError` on invalid
+ * input (the dev loader surfaces this as a readable error page).
+ */
+export function compileWireFile(source: string): string {
+  const ast = parse(source);
+  return `// compiled from .wrn\n${generate(ast)}`;
+}
+
+/** Richer entry point returning the AST and diagnostics alongside the code. */
+export function compile(source: string): CompileResult {
+  const diagnostics: string[] = [];
+  try {
+    const ast = parse(source);
+    return { code: `// compiled from .wrn\n${generate(ast)}`, ast, diagnostics };
+  } catch (err) {
+    if (err instanceof ParseError) diagnostics.push(err.message);
+    throw err;
+  }
+}