Implement nqp::eoffh.

pmurias · Dec 3, 2014 · 5a9057c · 5a9057c
1 parent 13785ed
commit 5a9057c
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diff --git a/src/vm/js/QAST/Compiler.nqp b/src/vm/js/QAST/Compiler.nqp
@@ -374,6 +374,7 @@ class QAST::OperationsJS {
     add_simple_op('open', $T_OBJ, [$T_STR, $T_STR], :sideffects);
 
     add_simple_op('tellfh', $T_INT, [$T_OBJ], :sideffects);
+    add_simple_op('eoffh', $T_INT, [$T_OBJ], :sideffects);
     add_simple_op('readlinefh', $T_STR, [$T_OBJ], :sideffects);
     add_simple_op('readallfh', $T_STR, [$T_OBJ], :sideffects);
     add_simple_op('printfh', $T_OBJ, [$T_OBJ, $T_STR], :sideffects);

diff --git a/src/vm/js/nqp-runtime/io.js b/src/vm/js/nqp-runtime/io.js
@@ -116,6 +116,14 @@ op.tellfh = function(fh) {
   return fs.seekSync(fh.fd, 0, 1);
 };
 
+op.eoffh = function(fh) {
+  // I haven't found a way to implement this directly in node.js
+  var current = fs.seekSync(fh.fd, 0, 1);
+  var end = fs.seekSync(fh.fd, 0, 2);
+  fs.seekSync(fh.fd, 0, current);
+  return current == end ? 1 : 0;
+};
+
 op.setencoding = function(fh, encoding) {
   fh.encoding = encoding;
 };