Initialisation

Added the packages and files for the backend server

node_modules/graphql/language/location.mjs

@@ -0,0 +1,30 @@
+import { invariant } from '../jsutils/invariant.mjs';
+const LineRegExp = /\r\n|[\n\r]/g;
+/**
+ * Represents a location in a Source.
+ */
+
+/**
+ * Takes a Source and a UTF-8 character offset, and returns the corresponding
+ * line and column as a SourceLocation.
+ */
+export function getLocation(source, position) {
+  let lastLineStart = 0;
+  let line = 1;
+
+  for (const match of source.body.matchAll(LineRegExp)) {
+    typeof match.index === 'number' || invariant(false);
+
+    if (match.index >= position) {
+      break;
+    }
+
+    lastLineStart = match.index + match[0].length;
+    line += 1;
+  }
+
+  return {
+    line,
+    column: position + 1 - lastLineStart,
+  };
+}