lib/serialization: adds a method to detect unserializable type

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

diff --git a/lib/standard/stream.nit b/lib/standard/stream.nit
index dce2a89..f161ebb 100644 (file)
--- a/lib/standard/stream.nit
+++ b/lib/standard/stream.nit
@@ -10,8 +10,8 @@
 # You  are  allowed  to  redistribute it and sell it, alone or is a part of
 # another product.
 
-# This module handle abstract input and output streams
-package stream
+# Input and output streams of characters
+module stream
 
 import string
 
@@ -61,7 +61,7 @@ interface IStream
                return s.to_s
        end
 
-       # Read a string until the end of the line and append it to `s'.
+       # Read a string until the end of the line and append it to `s`.
        fun append_line_to(s: Buffer)
        do
                loop
@@ -195,7 +195,7 @@ abstract class BufferedIStream
        # Is the last fill_buffer reach the end 
        protected fun end_reached: Bool is abstract
 
-       # Allocate a `_buffer' for a given `capacity'.
+       # Allocate a `_buffer` for a given `capacity`.
        protected fun prepare_buffer(capacity: Int)
        do
                _buffer = new Buffer.with_capacity(capacity)
@@ -221,6 +221,7 @@ abstract class FDStream
        private fun native_read_char(i: Int): Int is extern "stream_FDStream_FDStream_native_read_char_1"
        private fun native_read(i: Int, buf: NativeString, len: Int): Int is extern "stream_FDStream_FDStream_native_read_3"
        private fun native_write(i: Int, buf: NativeString, len: Int): Int is extern "stream_FDStream_FDStream_native_write_3"
+       private fun native_write_char(i: Int, c: Char): Int is extern "stream_FDStream_FDStream_native_write_char_2"
 
        init(fd: Int) do self.fd = fd
 end
@@ -295,3 +296,13 @@ redef interface Object
 
        private fun intern_poll( in_fds : Array[Int], out_fds : Array[Int] ) : nullable Int is extern import Array::length, Array::[], nullable Object as ( Int ), Int as nullable
 end
+
+# Stream to a String. Mainly used for compatibility with OStream type and tests.
+class StringOStream
+       super OStream
+
+       private var content = new Array[String]
+       redef fun to_s do return content.to_s
+       redef fun is_writable do return true
+       redef fun write(str) do content.add(str)
+end