unix-cpy: Remove unix-cpy. It's no longer needed.

unix-cpy was originally written to get semantic equivalent with CPython
without writing functional tests.  When writing the initial
implementation of uPy it was a long way between lexer and functional
tests, so the half-way test was to make sure that the bytecode was
correct.  The idea was that if the uPy bytecode matched CPython 1-1 then
uPy would be proper Python if the bytecodes acted correctly.  And having
matching bytecode meant that it was less likely to miss some deep
subtlety in the Python semantics that would require an architectural
change later on.

But that is all history and it no longer makes sense to retain the
ability to output CPython bytecode, because:

1. It outputs CPython 3.3 compatible bytecode.  CPython's bytecode
changes from version to version, and seems to have changed quite a bit
in 3.5.  There's no point in changing the bytecode output to match
CPython anymore.

2. uPy and CPy do different optimisations to the bytecode which makes it
harder to match.

3. The bytecode tests are not run.  They were never part of Travis and
are not run locally anymore.

4. The EMIT_CPYTHON option needs a lot of extra source code which adds
heaps of noise, especially in compile.c.

5. Now that there is an extensive test suite (which tests functionality)
there is no need to match the bytecode.  Some very subtle behaviour is
tested with the test suite and passing these tests is a much better
way to stay Python-language compliant, rather than trying to match
CPy bytecode.

1 files changed, 0 insertions, 160 deletions

diff --git a/tests/bytecode/pylib-tests/rlcompleter.py b/tests/bytecode/pylib-tests/rlcompleter.py
deleted file mode 100644
index d3a443737a..0000000000
--- a/tests/bytecode/pylib-tests/rlcompleter.py
+++ /dev/null
@@ -1,160 +0,0 @@
-"""Word completion for GNU readline.
-
-The completer completes keywords, built-ins and globals in a selectable
-namespace (which defaults to __main__); when completing NAME.NAME..., it
-evaluates (!) the expression up to the last dot and completes its attributes.
-
-It's very cool to do "import sys" type "sys.", hit the completion key (twice),
-and see the list of names defined by the sys module!
-
-Tip: to use the tab key as the completion key, call
-
-    readline.parse_and_bind("tab: complete")
-
-Notes:
-
-- Exceptions raised by the completer function are *ignored* (and generally cause
-  the completion to fail).  This is a feature -- since readline sets the tty
-  device in raw (or cbreak) mode, printing a traceback wouldn't work well
-  without some complicated hoopla to save, reset and restore the tty state.
-
-- The evaluation of the NAME.NAME... form may cause arbitrary application
-  defined code to be executed if an object with a __getattr__ hook is found.
-  Since it is the responsibility of the application (or the user) to enable this
-  feature, I consider this an acceptable risk.  More complicated expressions
-  (e.g. function calls or indexing operations) are *not* evaluated.
-
-- When the original stdin is not a tty device, GNU readline is never
-  used, and this module (and the readline module) are silently inactive.
-
-"""
-
-import builtins
-import __main__
-
-__all__ = ["Completer"]
-
-class Completer:
-    def __init__(self, namespace = None):
-        """Create a new completer for the command line.
-
-        Completer([namespace]) -> completer instance.
-
-        If unspecified, the default namespace where completions are performed
-        is __main__ (technically, __main__.__dict__). Namespaces should be
-        given as dictionaries.
-
-        Completer instances should be used as the completion mechanism of
-        readline via the set_completer() call:
-
-        readline.set_completer(Completer(my_namespace).complete)
-        """
-
-        if namespace and not isinstance(namespace, dict):
-            raise TypeError('namespace must be a dictionary')
-
-        # Don't bind to namespace quite yet, but flag whether the user wants a
-        # specific namespace or to use __main__.__dict__. This will allow us
-        # to bind to __main__.__dict__ at completion time, not now.
-        if namespace is None:
-            self.use_main_ns = 1
-        else:
-            self.use_main_ns = 0
-            self.namespace = namespace
-
-    def complete(self, text, state):
-        """Return the next possible completion for 'text'.
-
-        This is called successively with state == 0, 1, 2, ... until it
-        returns None.  The completion should begin with 'text'.
-
-        """
-        if self.use_main_ns:
-            self.namespace = __main__.__dict__
-
-        if state == 0:
-            if "." in text:
-                self.matches = self.attr_matches(text)
-            else:
-                self.matches = self.global_matches(text)
-        try:
-            return self.matches[state]
-        except IndexError:
-            return None
-
-    def _callable_postfix(self, val, word):
-        if callable(val):
-            word = word + "("
-        return word
-
-    def global_matches(self, text):
-        """Compute matches when text is a simple name.
-
-        Return a list of all keywords, built-in functions and names currently
-        defined in self.namespace that match.
-
-        """
-        import keyword
-        matches = []
-        n = len(text)
-        for word in keyword.kwlist:
-            if word[:n] == text:
-                matches.append(word)
-        for nspace in [builtins.__dict__, self.namespace]:
-            for word, val in nspace.items():
-                if word[:n] == text and word != "__builtins__":
-                    matches.append(self._callable_postfix(val, word))
-        return matches
-
-    def attr_matches(self, text):
-        """Compute matches when text contains a dot.
-
-        Assuming the text is of the form NAME.NAME....[NAME], and is
-        evaluatable in self.namespace, it will be evaluated and its attributes
-        (as revealed by dir()) are used as possible completions.  (For class
-        instances, class members are also considered.)
-
-        WARNING: this can still invoke arbitrary C code, if an object
-        with a __getattr__ hook is evaluated.
-
-        """
-        import re
-        m = re.match(r"(\w+(\.\w+)*)\.(\w*)", text)
-        if not m:
-            return []
-        expr, attr = m.group(1, 3)
-        try:
-            thisobject = eval(expr, self.namespace)
-        except Exception:
-            return []
-
-        # get the content of the object, except __builtins__
-        words = dir(thisobject)
-        if "__builtins__" in words:
-            words.remove("__builtins__")
-
-        if hasattr(thisobject, '__class__'):
-            words.append('__class__')
-            words.extend(get_class_members(thisobject.__class__))
-        matches = []
-        n = len(attr)
-        for word in words:
-            if word[:n] == attr and hasattr(thisobject, word):
-                val = getattr(thisobject, word)
-                word = self._callable_postfix(val, "%s.%s" % (expr, word))
-                matches.append(word)
-        return matches
-
-def get_class_members(klass):
-    ret = dir(klass)
-    if hasattr(klass,'__bases__'):
-        for base in klass.__bases__:
-            ret = ret + get_class_members(base)
-    return ret
-
-try:
-    import readline
-except ImportError:
-    pass
-else:
-    readline.set_completer(Completer().complete)