jruby · Apr 22, 2015 · Apr 22, 2015 · Apr 22, 2015
diff --git a/spec/truffle/tags/core/io/binread_tags.txt b/spec/truffle/tags/core/io/binread_tags.txt
@@ -0,0 +1,6 @@
+fails:IO.binread reads the contents of a file
+fails:IO.binread reads the contents of a file up to a certain size when specified
+fails:IO.binread reads the contents of a file from an offset of a specific size when specified
+fails:IO.binread returns a String in ASCII-8BIT encoding
+fails:IO.binread returns a String in ASCII-8BIT encoding regardless of Encoding.default_internal
+fails:IO.binread raises an Errno::EINVAL when not passed a valid offset
diff --git a/spec/truffle/tags/library/erb/defmethod/def_erb_method_tags.txt b/spec/truffle/tags/library/erb/defmethod/def_erb_method_tags.txt
@@ -0,0 +1 @@
+fails:ERB::DefMethod.def_erb_method define method to render eRuby file as an instance method of current module
diff --git a/truffle/src/main/java/org/jruby/truffle/nodes/rubinius/IOPrimitiveNodes.java b/truffle/src/main/java/org/jruby/truffle/nodes/rubinius/IOPrimitiveNodes.java
@@ -166,4 +166,23 @@ public int close(VirtualFrame frame, RubyBasicObject io) {
 
     }
 
+    @RubiniusPrimitive(name = "io_seek")
+    public static abstract class IOSeekPrimitiveNode extends RubiniusPrimitiveNode {
+
+        public IOSeekPrimitiveNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public IOSeekPrimitiveNode(IOSeekPrimitiveNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public int seek(VirtualFrame frame, RubyBasicObject io, int amount, int whence) {
+            final int fd = (int) rubyWithSelf(frame, io, "@descriptor");
+            return getContext().getPosix().lseek(fd, amount, whence);
+        }
+
+    }
+
 }
diff --git a/truffle/src/main/ruby/core/shims.rb b/truffle/src/main/ruby/core/shims.rb
@@ -32,6 +32,12 @@ def set_encoding(external, internal)
 $stdout = STDOUT
 $stderr = STDERR
 
+class << STDIN
+  def external_encoding
+    super || Encoding.default_external
+  end
+end
+
 if STDOUT.tty?
   STDOUT.sync = true
 end
@@ -194,3 +200,7 @@ module Errno
 
 end
 
+module Math
+  DomainError = Errno::EDOM
+end
+
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		fails:ERB::DefMethod.def_erb_method define method to render eRuby file as an instance method of current module