lib/file: make stdin, stdout and strerr lazy

[nit.git] / lib / standard / file.nit

diff --git a/lib/standard/file.nit b/lib/standard/file.nit
index a777028..4d77955 100644 (file)
--- a/lib/standard/file.nit
+++ b/lib/standard/file.nit
@@ -32,7 +32,7 @@ in "C Header" `{
        #include <errno.h>
 `}
 
-# File Abstract Stream
+# `Stream` used to interact with a File or FileDescriptor
 abstract class FileStream
        super Stream
        # The path of the file.
@@ -63,7 +63,7 @@ abstract class FileStream
        end
 end
 
-# File input stream
+# `Stream` that can read from a File
 class FileReader
        super FileStream
        super BufferedReader
@@ -133,7 +133,7 @@ class FileReader
        end
 end
 
-# File output stream
+# `Stream` that can write to a File
 class FileWriter
        super FileStream
        super Writer
@@ -254,6 +254,7 @@ class Stdout
                _file = new NativeFile.native_stdout
                path = "/dev/stdout"
                _is_writable = true
+               set_buffering_mode(256, sys.buffer_mode_line)
        end
 end
 
@@ -998,18 +999,14 @@ end
 
 redef class Sys
 
-       init do
-               if stdout isa FileStream then stdout.as(FileStream).set_buffering_mode(256, buffer_mode_line)
-       end
-
        # Standard input
-       var stdin: PollableReader = new Stdin is protected writable
+       var stdin: PollableReader = new Stdin is protected writable, lazy
 
        # Standard output
-       var stdout: Writer = new Stdout is protected writable
+       var stdout: Writer = new Stdout is protected writable, lazy
 
        # Standard output for errors
-       var stderr: Writer = new Stderr is protected writable
+       var stderr: Writer = new Stderr is protected writable, lazy
 
        # Enumeration for buffer mode full (flushes when buffer is full)
        fun buffer_mode_full: Int is extern "file_Sys_Sys_buffer_mode_full_0"