From a75bd8192b6c98673187630ceff8098610f5dff1 Mon Sep 17 00:00:00 2001
From: dojyorin <ota_droid@live.jp>
Date: Tue, 25 Jul 2023 22:20:01 +0900
Subject: [PATCH 1/2] add safe eval.

---
 mod.test.ts           |  1 +
 mod.ts                |  1 +
 mod.universal.ts      |  1 +
 src/evaluate.ts       | 11 +++++++++++
 test/evaluate.test.ts | 11 +++++++++++
 5 files changed, 25 insertions(+)
 create mode 100644 src/evaluate.ts
 create mode 100644 test/evaluate.test.ts

diff --git a/mod.test.ts b/mod.test.ts
index dcd88a4..3c30570 100644
--- a/mod.test.ts
+++ b/mod.test.ts
@@ -2,6 +2,7 @@ import "./test/base64.test.ts";
 import "./test/crypto.test.ts";
 import "./test/deep.test.ts";
 import "./test/deflate.test.ts";
+import "./test/evaluate.test.ts";
 import "./test/fetch.test.ts";
 import "./test/import.test.ts";
 import "./test/json.deno.test.ts";
diff --git a/mod.ts b/mod.ts
index 2945fda..adbfa6b 100644
--- a/mod.ts
+++ b/mod.ts
@@ -2,6 +2,7 @@ export * from "./src/base64.ts";
 export * from "./src/crypto.ts";
 export * from "./src/deep.ts";
 export * from "./src/deflate.ts";
+export * from "./src/evaluate.ts";
 export * from "./src/fetch.ts";
 export * from "./src/import.ts";
 export * from "./src/minipack.ts";
diff --git a/mod.universal.ts b/mod.universal.ts
index b884879..38db0fe 100644
--- a/mod.universal.ts
+++ b/mod.universal.ts
@@ -2,6 +2,7 @@ export * from "./src/base64.ts";
 export * from "./src/crypto.ts";
 export * from "./src/deep.ts";
 export * from "./src/deflate.ts";
+export * from "./src/evaluate.ts";
 export * from "./src/fetch.ts";
 export * from "./src/import.ts";
 export * from "./src/minipack.ts";
diff --git a/src/evaluate.ts b/src/evaluate.ts
new file mode 100644
index 0000000..b9e9608
--- /dev/null
+++ b/src/evaluate.ts
@@ -0,0 +1,11 @@
+import {type Opt} from "./deep.ts";
+import {base64Encode} from "./base64.ts";
+import {utfEncode} from "./text.ts";
+
+export interface DefExp<T extends unknown>{
+    default: T;
+}
+
+export async function evaluateESM<T extends Opt<T>>(code:string):Promise<T>{
+    return await import(`data:text/javascript;base64,${base64Encode(utfEncode(code))}`);
+}
\ No newline at end of file
diff --git a/test/evaluate.test.ts b/test/evaluate.test.ts
new file mode 100644
index 0000000..c5a262c
--- /dev/null
+++ b/test/evaluate.test.ts
@@ -0,0 +1,11 @@
+import {assertEquals} from "../deps.test.ts";
+import {type DefExp, evaluateESM} from "../src/evaluate.ts";
+
+Deno.test({
+    name: "Evaluate: ESM",
+    async fn(){
+        const {default: esm} = await evaluateESM<DefExp<string>>("export default 'hello!';");
+
+        assertEquals(esm, "hello!");
+    }
+});
\ No newline at end of file

From b32bca730954200aaf2fc84a0ffd7a40ccb05422 Mon Sep 17 00:00:00 2001
From: dojyorin <ota_droid@live.jp>
Date: Tue, 25 Jul 2023 22:25:53 +0900
Subject: [PATCH 2/2] add jsdoc.

---
 src/evaluate.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/evaluate.ts b/src/evaluate.ts
index b9e9608..f901f9f 100644
--- a/src/evaluate.ts
+++ b/src/evaluate.ts
@@ -2,10 +2,20 @@ import {type Opt} from "./deep.ts";
 import {base64Encode} from "./base64.ts";
 import {utfEncode} from "./text.ts";
 
+/**
+* Auxiliary type for default export.
+*/
 export interface DefExp<T extends unknown>{
     default: T;
 }
 
+/**
+* Evaluate ESM JavaScript code in module scope.
+* @example
+* ```ts
+* const {default: data} = await evaluateESM<DefExp<string>>("export default 'hello!';");
+* ```
+*/
 export async function evaluateESM<T extends Opt<T>>(code:string):Promise<T>{
     return await import(`data:text/javascript;base64,${base64Encode(utfEncode(code))}`);
 }
\ No newline at end of file