Support .d.ts files (#2746)

Fixes #1432

9 files changed, 30 insertions, 0 deletions

diff --git a/tests/error_type_definitions.test b/tests/error_type_definitions.test
new file mode 100644
index 000000000..367edacc5
--- /dev/null
+++ b/tests/error_type_definitions.test
@@ -0,0 +1,4 @@
+args: run --reload tests/error_type_definitions.ts
+check_stderr: true
+exit_code: 1
+output: tests/error_type_definitions.ts.out
diff --git a/tests/error_type_definitions.ts b/tests/error_type_definitions.ts
new file mode 100644
index 000000000..ceb11787e
--- /dev/null
+++ b/tests/error_type_definitions.ts
@@ -0,0 +1,5 @@
+// @deno-types="./type_definitions/bar.d.ts"
+import { Bar } from "./type_definitions/bar.js";
+
+const bar = new Bar();
+console.log(bar);
diff --git a/tests/error_type_definitions.ts.out b/tests/error_type_definitions.ts.out
new file mode 100644
index 000000000..4b29b5b83
--- /dev/null
+++ b/tests/error_type_definitions.ts.out
@@ -0,0 +1,4 @@
+[WILDCARD]error: Uncaught TypeError: Automatic type resolution not supported
+[WILDCARD]js/compiler.ts:[WILDCARD]
+    at fileExists (js/compiler.ts:[WILDCARD])
+[WILDCARD]
\ No newline at end of file
diff --git a/tests/type_definitions.test b/tests/type_definitions.test
new file mode 100644
index 000000000..7ce8d896d
--- /dev/null
+++ b/tests/type_definitions.test
@@ -0,0 +1,2 @@
+args: run --reload tests/type_definitions.ts
+output: tests/type_definitions.ts.out
diff --git a/tests/type_definitions.ts b/tests/type_definitions.ts
new file mode 100644
index 000000000..372501166
--- /dev/null
+++ b/tests/type_definitions.ts
@@ -0,0 +1,4 @@
+// @deno-types="./type_definitions/foo.d.ts"
+import { foo } from "./type_definitions/foo.js";
+
+console.log(foo);
diff --git a/tests/type_definitions.ts.out b/tests/type_definitions.ts.out
new file mode 100644
index 000000000..291e85a7b
--- /dev/null
+++ b/tests/type_definitions.ts.out
@@ -0,0 +1 @@
+[WILDCARD]foo
diff --git a/tests/type_definitions/bar.d.ts b/tests/type_definitions/bar.d.ts
new file mode 100644
index 000000000..d43335dbb
--- /dev/null
+++ b/tests/type_definitions/bar.d.ts
@@ -0,0 +1,7 @@
+/// <reference types="baz" />
+
+declare namespace bar {
+  export class Bar {
+    baz: string;
+  }
+}
diff --git a/tests/type_definitions/foo.d.ts b/tests/type_definitions/foo.d.ts
new file mode 100644
index 000000000..ce39201e1
--- /dev/null
+++ b/tests/type_definitions/foo.d.ts
@@ -0,0 +1,2 @@
+/** An exported value. */
+export const foo: string;
diff --git a/tests/type_definitions/foo.js b/tests/type_definitions/foo.js
new file mode 100644
index 000000000..61d366eb2
--- /dev/null
+++ b/tests/type_definitions/foo.js
@@ -0,0 +1 @@
+export const foo = "foo";