1 files changed, 26 insertions, 0 deletions
diff --git a/cli/js/compiler/ts_global.d.ts b/cli/js/compiler/ts_global.d.ts
new file mode 100644
index 000000000..7b9d84c7a
--- /dev/null
+++ b/cli/js/compiler/ts_global.d.ts
@@ -0,0 +1,26 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+// This scopes the `ts` namespace globally, which is where it exists at runtime
+// when building Deno, but the `typescript/lib/typescript.d.ts` is defined as a
+// module.
+
+// Warning! This is a magical import. We don't want to have multiple copies of
+// typescript.d.ts around the repo, there's already one in
+// deno_typescript/typescript/lib/typescript.d.ts. Ideally we could simply point
+// to that in this import specifier, but "cargo package" is very strict and
+// requires all files to be present in a crate's subtree.
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+import * as ts_ from "$asset$/typescript.d.ts";
+
+declare global {
+  namespace ts {
+    export = ts_;
+  }
+
+  namespace ts {
+    // this are marked @internal in TypeScript, but we need to access them,
+    // there is a risk these could change in future versions of TypeScript
+    export const libs: string[];
+    export const libMap: Map<string, string>;
+  }
+}