From 999cbfb52bc42c58467e3592d5fead9c4ee8a2c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Mon, 18 Jul 2022 20:05:26 +0200
Subject: feat: import.meta.resolve() (#15074)

This commit adds new "import.meta.resolve()" API which
allows to resolve specifiers relative to the module the API
is called in. This API supports resolving using import maps.
---
 cli/tests/testdata/import_meta.importmap.json | 11 ++++++++++
 cli/tests/testdata/import_meta.ts             | 31 +++++++++++++++++++++++++++
 cli/tests/testdata/import_meta.ts.out         |  7 ++++++
 3 files changed, 49 insertions(+)
 create mode 100644 cli/tests/testdata/import_meta.importmap.json

(limited to 'cli/tests/testdata')

diff --git a/cli/tests/testdata/import_meta.importmap.json b/cli/tests/testdata/import_meta.importmap.json
new file mode 100644
index 000000000..f8c056afd
--- /dev/null
+++ b/cli/tests/testdata/import_meta.importmap.json
@@ -0,0 +1,11 @@
+{
+  "imports": {
+    "bare": "https://example.com/",
+    "https://example.com/rewrite": "https://example.com/rewritten",
+
+    "1": "https://example.com/PASS-1",
+    "null": "https://example.com/PASS-null",
+    "undefined": "https://example.com/PASS-undefined",
+    "[object Object]": "https://example.com/PASS-object"
+  }
+}
diff --git a/cli/tests/testdata/import_meta.ts b/cli/tests/testdata/import_meta.ts
index d111059ea..37af69020 100644
--- a/cli/tests/testdata/import_meta.ts
+++ b/cli/tests/testdata/import_meta.ts
@@ -1,3 +1,34 @@
+import { assertThrows } from "../../../test_util/std/testing/asserts.ts";
+
 console.log("import_meta", import.meta.url, import.meta.main);
 
 import "./import_meta2.ts";
+
+console.log("Resolving ./foo.js", import.meta.resolve("./foo.js"));
+console.log("Resolving bare from import map", import.meta.resolve("bare"));
+console.log(
+  "Resolving https://example.com/rewrite from import map",
+  import.meta.resolve("https://example.com/rewrite"),
+);
+console.log(
+  "Resolving without a value from import map",
+  import.meta.resolve(),
+);
+console.log(
+  "Resolving 1 from import map",
+  import.meta.resolve(1),
+);
+console.log(
+  "Resolving null from import map",
+  import.meta.resolve(null),
+);
+console.log(
+  "Resolving object from import map",
+  import.meta.resolve({}),
+);
+assertThrows(() => {
+  import.meta.resolve("too", "many", "arguments");
+}, TypeError);
+assertThrows(() => {
+  import.meta.resolve("://malformed/url?asdf");
+}, TypeError);
diff --git a/cli/tests/testdata/import_meta.ts.out b/cli/tests/testdata/import_meta.ts.out
index f38aa98ea..a431f61df 100644
--- a/cli/tests/testdata/import_meta.ts.out
+++ b/cli/tests/testdata/import_meta.ts.out
@@ -1,2 +1,9 @@
 import_meta2 [WILDCARD]import_meta2.ts false
 import_meta [WILDCARD]import_meta.ts true
+Resolving ./foo.js file:///[WILDCARD]/foo.js
+Resolving bare from import map https://example.com/
+Resolving https://example.com/rewrite from import map https://example.com/rewritten
+Resolving without a value from import map https://example.com/PASS-undefined
+Resolving 1 from import map https://example.com/PASS-1
+Resolving null from import map https://example.com/PASS-null
+Resolving object from import map https://example.com/PASS-object
-- 
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