From d20eb6852aa7ae2fb244e732fe19b4ed6937b6bc Mon Sep 17 00:00:00 2001
From: Gabriela Araujo Britto <gabrielaa@microsoft.com>
Date: Thu, 30 Sep 2021 17:26:14 -0700
Subject: [PATCH] WIP: add snippet support

---
 src/compiler/types.ts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 3c46e680571..0888e880729 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -6737,6 +6737,29 @@ namespace ts {
         externalHelpers?: boolean;
         helpers?: EmitHelper[];                  // Emit helpers for the node
         startsOnNewLine?: boolean;               // If the node should begin on a new line
+        snippetElement?: SnippetElement;         // Snippet element of the node
+    }
+
+    export interface SnippetElement {
+        kind: SnippetKind;
+    }
+
+    export interface TabStop extends SnippetElement {
+        kind: SnippetKind.TabStop;
+        order: number;
+    }
+
+    export interface PlaceHolder extends SnippetElement {
+        kind: SnippetKind.Placeholder;
+        order: number;
+    }
+
+    // Reference: https://code.visualstudio.com/docs/editor/userdefinedsnippets#_snippet-syntax
+    export const enum SnippetKind {
+        TabStop,                                // `$1`, `$2`
+        Placeholder,                            // `${1:foo}`
+        Choice,                                 // `${1|one,two,three|}`
+        Variable,                               // `$name`, `${name:default}`
     }
 
     export const enum EmitFlags {