Support loading additional TS lib files (#3863)

Fixes #3726

This PR provides support for referencing other lib files (like lib.dom.d.ts that are not
used by default in Deno.

5 files changed, 39 insertions, 0 deletions

diff --git a/cli/tests/integration_tests.rs b/cli/tests/integration_tests.rs
index 38c870200..ebb0349c5 100644
--- a/cli/tests/integration_tests.rs
+++ b/cli/tests/integration_tests.rs
@@ -833,6 +833,16 @@ itest!(import_meta {
   output: "import_meta.ts.out",
 });
 
+itest!(lib_ref {
+  args: "run --reload lib_ref.ts",
+  output: "lib_ref.ts.out",
+});
+
+itest!(lib_runtime_api {
+  args: "run --reload lib_runtime_api.ts",
+  output: "lib_runtime_api.ts.out",
+});
+
 itest!(seed_random {
   args: "run --seed=100 seed_random.js",
   output: "seed_random.js.out",
diff --git a/cli/tests/lib_ref.ts b/cli/tests/lib_ref.ts
new file mode 100644
index 000000000..9fc84ea3e
--- /dev/null
+++ b/cli/tests/lib_ref.ts
@@ -0,0 +1,13 @@
+const [errors, program] = await Deno.compile(
+  "main.ts",
+  {
+    "main.ts": `/// <reference lib="dom" />\n\ndocument.getElementById("foo");\nDeno.args;`
+  },
+  {
+    target: "es2018",
+    lib: ["es2018", "deno.ns"]
+  }
+);
+
+console.log(errors);
+console.log(Object.keys(program));
diff --git a/cli/tests/lib_ref.ts.out b/cli/tests/lib_ref.ts.out
new file mode 100644
index 000000000..6ff3616b7
--- /dev/null
+++ b/cli/tests/lib_ref.ts.out
@@ -0,0 +1,2 @@
+null
+[ "main.js.map", "main.js" ]
diff --git a/cli/tests/lib_runtime_api.ts b/cli/tests/lib_runtime_api.ts
new file mode 100644
index 000000000..848b523a1
--- /dev/null
+++ b/cli/tests/lib_runtime_api.ts
@@ -0,0 +1,12 @@
+const [errors, program] = await Deno.compile(
+  "main.ts",
+  {
+    "main.ts": `document.getElementById("foo");`
+  },
+  {
+    lib: ["dom", "esnext"]
+  }
+);
+
+console.log(errors);
+console.log(Object.keys(program));
diff --git a/cli/tests/lib_runtime_api.ts.out b/cli/tests/lib_runtime_api.ts.out
new file mode 100644
index 000000000..6ff3616b7
--- /dev/null
+++ b/cli/tests/lib_runtime_api.ts.out
@@ -0,0 +1,2 @@
+null
+[ "main.js.map", "main.js" ]