feat: remove deprecated methods from namespace with `DENO_FUTURE=1` (#23075)

This change removes deprecated methods from the `Deno.*` namespace when
the `DENO_FUTURE=1` environment variable is used.

Note: this does not address deprecated class properties and methods.
E.g. `Deno.Conn.rid`.

1 files changed, 27 insertions, 0 deletions

diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index 3db781148..a6b522679 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -1,3 +1,4 @@
+// deno-lint-ignore-file no-deprecated-deno-api
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 
 // Remove Intl.v8BreakIterator because it is a non-standard API.
@@ -779,6 +780,32 @@ function bootstrapMainRuntime(runtimeOptions, warmup = false) {
     }
     if (future) {
       delete globalThis.window;
+      delete Deno.Buffer;
+      delete Deno.close;
+      delete Deno.copy;
+      delete Deno.File;
+      delete Deno.fstat;
+      delete Deno.fstatSync;
+      delete Deno.ftruncate;
+      delete Deno.ftruncateSync;
+      delete Deno.flock;
+      delete Deno.flockSync;
+      delete Deno.funlock;
+      delete Deno.funlockSync;
+      delete Deno.iter;
+      delete Deno.iterSync;
+      delete Deno.metrics;
+      delete Deno.readAll;
+      delete Deno.readAllSync;
+      delete Deno.read;
+      delete Deno.readSync;
+      delete Deno.seek;
+      delete Deno.seekSync;
+      delete Deno.shutdown;
+      delete Deno.writeAll;
+      delete Deno.writeAllSync;
+      delete Deno.write;
+      delete Deno.writeSync;
     }
   } else {
     // Warmup