# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1479911148 -3600
# Node ID 06c0ef06e967ce4eb1cf01f2b16409ad45e06d1a
# Parent  a7684997ef7a11555eac21949444ccb80b141a61
Added initial program representation (repr and __repr__) support.

diff -r a7684997ef7a -r 06c0ef06e967 lib/__builtins__/identity.py
--- a/lib/__builtins__/identity.py	Wed Nov 23 15:17:29 2016 +0100
+++ b/lib/__builtins__/identity.py	Wed Nov 23 15:25:48 2016 +0100
@@ -3,7 +3,7 @@
 """
 Identity-related functions.
 
-Copyright (C) 2015 Paul Boddie <paul@boddie.org.uk>
+Copyright (C) 2015, 2016 Paul Boddie <paul@boddie.org.uk>
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -45,6 +45,10 @@
 
 def issubclass(obj, cls_or_tuple): pass
 
-def repr(obj): pass
+def repr(obj):
+
+    "Return a program representation for 'obj'."
+
+    return obj.__repr__()
 
 # vim: tabstop=4 expandtab shiftwidth=4
diff -r a7684997ef7a -r 06c0ef06e967 lib/__builtins__/int.py
--- a/lib/__builtins__/int.py	Wed Nov 23 15:17:29 2016 +0100
+++ b/lib/__builtins__/int.py	Wed Nov 23 15:25:48 2016 +0100
@@ -144,6 +144,8 @@
         "Return a string representation."
         return native._int_str(self)
 
+    __repr__ = __str__
+
     def __lshift__(self): pass
     def __rlshift__(self): pass
     def __rshift__(self): pass
diff -r a7684997ef7a -r 06c0ef06e967 lib/__builtins__/list.py
--- a/lib/__builtins__/list.py	Wed Nov 23 15:17:29 2016 +0100
+++ b/lib/__builtins__/list.py	Wed Nov 23 15:25:48 2016 +0100
@@ -112,12 +112,14 @@
                 first = False
             else:
                 b.append(", ")
-            b.append(self.__get_single_item__(i))
+            b.append(repr(self.__get_single_item__(i)))
             i += 1
         b.append("]")
 
         return str(b)
 
+    __repr__ = __str__
+
     def __bool__(self):
 
         "Lists are true if non-empty."
diff -r a7684997ef7a -r 06c0ef06e967 lib/__builtins__/str.py
--- a/lib/__builtins__/str.py	Wed Nov 23 15:17:29 2016 +0100
+++ b/lib/__builtins__/str.py	Wed Nov 23 15:25:48 2016 +0100
@@ -75,8 +75,15 @@
         return native._str_len(self)
 
     def __str__(self):
+        "Return a string representation."
         return self
 
+    def __repr__(self):
+        "Return a string literal representation."
+        # NOTE: To be implemented with proper quoting.
+        b = buffer(['"', self, '"'])
+        return str(b)
+
     def __bool__(self):
         return native._str_nonempty(self)