1 files changed, 65 insertions, 0 deletions
diff --git a/js/os.ts b/js/os.ts
new file mode 100644
index 000000000..a51c6ec5d
--- /dev/null
+++ b/js/os.ts
@@ -0,0 +1,65 @@
+// Copyright 2018 Ryan Dahl <ry@tinyclouds.org>
+// All rights reserved. MIT License.
+import { ModuleInfo } from "./types";
+import { pubInternal } from "./dispatch";
+import { deno as pb } from "./msg.pb";
+import { assert } from "./util";
+
+export function exit(exitCode = 0): void {
+  pubInternal("os", {
+    command: pb.Msg.Command.EXIT,
+    exitCode
+  });
+}
+
+export function codeFetch(
+  moduleSpecifier: string,
+  containingFile: string
+): ModuleInfo {
+  const res = pubInternal("os", {
+    command: pb.Msg.Command.CODE_FETCH,
+    codeFetchModuleSpecifier: moduleSpecifier,
+    codeFetchContainingFile: containingFile
+  });
+  assert(res.command === pb.Msg.Command.CODE_FETCH_RES);
+  return {
+    moduleName: res.codeFetchResModuleName,
+    filename: res.codeFetchResFilename,
+    sourceCode: res.codeFetchResSourceCode,
+    outputCode: res.codeFetchResOutputCode
+  };
+}
+
+export function codeCache(
+  filename: string,
+  sourceCode: string,
+  outputCode: string
+): void {
+  pubInternal("os", {
+    command: pb.Msg.Command.CODE_CACHE,
+    codeCacheFilename: filename,
+    codeCacheSourceCode: sourceCode,
+    codeCacheOutputCode: outputCode
+  });
+}
+
+export function readFileSync(filename: string): Uint8Array {
+  const res = pubInternal("os", {
+    command: pb.Msg.Command.READ_FILE_SYNC,
+    readFileSyncFilename: filename
+  });
+  return res.readFileSyncData;
+}
+
+export function writeFileSync(
+  filename: string,
+  data: Uint8Array,
+  perm: number
+): void {
+  pubInternal("os", {
+    command: pb.Msg.Command.WRITE_FILE_SYNC,
+    writeFileSyncFilename: filename,
+    writeFileSyncData: data,
+    writeFileSyncPerm: perm
+  });
+}