From 721a4ad59d4a8bdd8470d6b98839137f14c84ba9 Mon Sep 17 00:00:00 2001
From: Valentin Anger <syrupthinker@gryphno.de>
Date: Wed, 29 Apr 2020 20:48:19 +0200
Subject: BREAKING: Map-like interface for Deno.env (#4942)

---
 cli/js/lib.deno.ns.d.ts | 50 +++++++++++++++++++++++++++----------------------
 1 file changed, 28 insertions(+), 22 deletions(-)

(limited to 'cli/js/lib.deno.ns.d.ts')

diff --git a/cli/js/lib.deno.ns.d.ts b/cli/js/lib.deno.ns.d.ts
index edc9668e7..e58ec0b55 100644
--- a/cli/js/lib.deno.ns.d.ts
+++ b/cli/js/lib.deno.ns.d.ts
@@ -116,29 +116,35 @@ declare namespace Deno {
    */
   export function exit(code?: number): never;
 
-  /** Returns a snapshot of the environment variables at invocation. Changing a
-   * property in the object will set that variable in the environment for the
-   * process. The environment object will only accept `string`s as values.
-   *
-   *       const myEnv = Deno.env();
-   *       console.log(myEnv.SHELL);
-   *       myEnv.TEST_VAR = "HELLO";
-   *       const newEnv = Deno.env();
-   *       console.log(myEnv.TEST_VAR === newEnv.TEST_VAR);  // outputs "true"
-   *
-   * Requires `allow-env` permission. */
-  export function env(): {
-    [index: string]: string;
-  };
+  export const env: {
+    /** Retrieve the value of an environment variable. Returns undefined if that
+     * key doesn't exist.
+     *
+     *       console.log(Deno.env.get("HOME"));  // e.g. outputs "/home/alice"
+     *       console.log(Deno.env.get("MADE_UP_VAR"));  // outputs "Undefined"
+     *
+     * Requires `allow-env` permission. */
+    get(key: string): string | undefined;
 
-  /** Retrieve the value of an environment variable. Returns undefined if that
-   * key doesn't exist.
-   *
-   *       console.log(Deno.env("HOME"));  // e.g. outputs "/home/alice"
-   *       console.log(Deno.env("MADE_UP_VAR"));  // outputs "Undefined"
-   *
-   * Requires `allow-env` permission. */
-  export function env(key: string): string | undefined;
+    /** Set the value of an environment variable.
+     *
+     *       Deno.env.set("SOME_VAR", "Value"));
+     *       Deno.env.get("SOME_VAR");  // outputs "Value"
+     *
+     * Requires `allow-env` permission. */
+    set(key: string, value: string): void;
+
+    /** Returns a snapshot of the environment variables at invocation.
+     *
+     *       Deno.env.set("TEST_VAR", "A");
+     *       const myEnv = Deno.env.toObject();
+     *       console.log(myEnv.SHELL);
+     *       Deno.env.set("TEST_VAR", "B");
+     *       console.log(myEnv.TEST_VAR);  // outputs "A"
+     *
+     * Requires `allow-env` permission. */
+    toObject(): { [index: string]: string };
+  };
 
   /** **UNSTABLE** */
   export type DirKind =
-- 
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