Adds basic File I/O and FD table.

Adds deno.stdin, deno.stdout, deno.stderr, deno.open(), deno.write(),
deno.read(), deno.Reader, deno.Writer, deno.copy().

Fixes #721. tests/cat.ts works.

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/cat.ts b/tests/cat.ts
new file mode 100644
index 000000000..bede0d432
--- /dev/null
+++ b/tests/cat.ts
@@ -0,0 +1,11 @@
+import { stdout, open, copy, args } from "deno";
+
+async function main() {
+  for (let i = 1; i < args.length; i++) {
+    let filename = args[i];
+    let file = await open(filename);
+    await copy(stdout, file);
+  }
+}
+
+main();