1 files changed, 8 insertions, 0 deletions
diff --git a/llparse-frontend/src/span-field.ts b/llparse-frontend/src/span-field.ts
new file mode 100644
index 0000000..0652f77
--- /dev/null
+++ b/llparse-frontend/src/span-field.ts
@@ -0,0 +1,8 @@
+import { Span } from './code';
+import { IWrap } from './wrap';
+
+export class SpanField {
+  constructor(public readonly index: number,
+              public readonly callbacks: ReadonlyArray<IWrap<Span>>) {
+  }
+}