First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>

client/node_modules/langium/lib/parser/langium-parser-builder.js

@@ -0,0 +1,27 @@
+/******************************************************************************
+ * Copyright 2021 TypeFox GmbH
+ * This program and the accompanying materials are made available under the
+ * terms of the MIT License, which is available in the project root.
+ ******************************************************************************/
+import { LangiumParser } from './langium-parser.js';
+import { createParser } from './parser-builder-base.js';
+/**
+ * Create and finalize a Langium parser. The parser rules are derived from the grammar, which is
+ * available at `services.Grammar`.
+ */
+export function createLangiumParser(services) {
+    const parser = prepareLangiumParser(services);
+    parser.finalize();
+    return parser;
+}
+/**
+ * Create a Langium parser without finalizing it. This is used to extract more detailed error
+ * information when the parser is initially validated.
+ */
+export function prepareLangiumParser(services) {
+    const grammar = services.Grammar;
+    const lexer = services.parser.Lexer;
+    const parser = new LangiumParser(services);
+    return createParser(grammar, parser, lexer.definition);
+}
+//# sourceMappingURL=langium-parser-builder.js.map