From b10668ce74316c8965a5b19a8b4365c90f75e17f Mon Sep 17 00:00:00 2001
From: daurnimator <quae@daurnimator.com>
Date: Tue, 16 May 2017 17:32:34 +1000
Subject: src/liolib.js: Add stubs for flush

---
 README.md     |  4 ++--
 src/liolib.js | 14 ++++++++++++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 6d94e2e..4b78239 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,7 @@
     - [x] Package
     - [ ] io
         - [x] `file:__tostring()`
+        - [x] `file:flush()`
         - [x] `file:write()`
         - [x] `io.close()`
         - [x] `io.stderr`
@@ -36,7 +37,7 @@
         - [x] `io.stdout`
         - [x] `io.type()`
         - [x] `io.write()`
-        - [ ] `io.flush()`
+        - [x] `io.flush()`
         - [ ] `io.input()`
         - [ ] `io.lines()`
         - [ ] `io.open()`
@@ -44,7 +45,6 @@
         - [ ] `io.popen()`
         - [ ] `io.read()`
         - [ ] `io.tmpfile()`
-        - [ ] `file:flush()`
         - [ ] `file:lines()`
         - [ ] `file:read()`
         - [ ] `file:setvbuf()`
diff --git a/src/liolib.js b/src/liolib.js
index 575b3ec..6c7d945 100644
--- a/src/liolib.js
+++ b/src/liolib.js
@@ -105,14 +105,28 @@ const f_write = function(L) {
     return g_write(L, f, 2);
 };
 
+const io_flush = function (L) {
+    /* stub, as node doesn't have synchronized buffered IO */
+    getiofile(L, IO_OUTPUT);
+    return lauxlib.luaL_fileresult(L, true, null, null);
+};
+
+const f_flush = function (L) {
+    /* stub, as node doesn't have synchronized buffered IO */
+    tofile(L);
+    return lauxlib.luaL_fileresult(L, true, null, null);
+};
+
 const iolib = {
     "close": io_close,
+    "flush": io_flush,
     "type": io_type,
     "write": io_write
 };
 
 const flib = {
     "close": io_close,
+    "flush": f_flush,
     "write": f_write,
     "__tostring": f_tostring
 };
-- 
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