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, 259 deletions

diff --git a/tests/bytecode/pylib-tests/sre_constants.py b/tests/bytecode/pylib-tests/sre_constants.py
deleted file mode 100644
index 5898d5411a..0000000000
--- a/tests/bytecode/pylib-tests/sre_constants.py
+++ /dev/null
@@ -1,259 +0,0 @@
-#
-# Secret Labs' Regular Expression Engine
-#
-# various symbols used by the regular expression engine.
-# run this script to update the _sre include files!
-#
-# Copyright (c) 1998-2001 by Secret Labs AB.  All rights reserved.
-#
-# See the sre.py file for information on usage and redistribution.
-#
-
-"""Internal support module for sre"""
-
-# update when constants are added or removed
-
-MAGIC = 20031017
-
-from _sre import MAXREPEAT
-
-# SRE standard exception (access as sre.error)
-# should this really be here?
-
-class error(Exception):
-    pass
-
-# operators
-
-FAILURE = "failure"
-SUCCESS = "success"
-
-ANY = "any"
-ANY_ALL = "any_all"
-ASSERT = "assert"
-ASSERT_NOT = "assert_not"
-AT = "at"
-BIGCHARSET = "bigcharset"
-BRANCH = "branch"
-CALL = "call"
-CATEGORY = "category"
-CHARSET = "charset"
-GROUPREF = "groupref"
-GROUPREF_IGNORE = "groupref_ignore"
-GROUPREF_EXISTS = "groupref_exists"
-IN = "in"
-IN_IGNORE = "in_ignore"
-INFO = "info"
-JUMP = "jump"
-LITERAL = "literal"
-LITERAL_IGNORE = "literal_ignore"
-MARK = "mark"
-MAX_REPEAT = "max_repeat"
-MAX_UNTIL = "max_until"
-MIN_REPEAT = "min_repeat"
-MIN_UNTIL = "min_until"
-NEGATE = "negate"
-NOT_LITERAL = "not_literal"
-NOT_LITERAL_IGNORE = "not_literal_ignore"
-RANGE = "range"
-REPEAT = "repeat"
-REPEAT_ONE = "repeat_one"
-SUBPATTERN = "subpattern"
-MIN_REPEAT_ONE = "min_repeat_one"
-
-# positions
-AT_BEGINNING = "at_beginning"
-AT_BEGINNING_LINE = "at_beginning_line"
-AT_BEGINNING_STRING = "at_beginning_string"
-AT_BOUNDARY = "at_boundary"
-AT_NON_BOUNDARY = "at_non_boundary"
-AT_END = "at_end"
-AT_END_LINE = "at_end_line"
-AT_END_STRING = "at_end_string"
-AT_LOC_BOUNDARY = "at_loc_boundary"
-AT_LOC_NON_BOUNDARY = "at_loc_non_boundary"
-AT_UNI_BOUNDARY = "at_uni_boundary"
-AT_UNI_NON_BOUNDARY = "at_uni_non_boundary"
-
-# categories
-CATEGORY_DIGIT = "category_digit"
-CATEGORY_NOT_DIGIT = "category_not_digit"
-CATEGORY_SPACE = "category_space"
-CATEGORY_NOT_SPACE = "category_not_space"
-CATEGORY_WORD = "category_word"
-CATEGORY_NOT_WORD = "category_not_word"
-CATEGORY_LINEBREAK = "category_linebreak"
-CATEGORY_NOT_LINEBREAK = "category_not_linebreak"
-CATEGORY_LOC_WORD = "category_loc_word"
-CATEGORY_LOC_NOT_WORD = "category_loc_not_word"
-CATEGORY_UNI_DIGIT = "category_uni_digit"
-CATEGORY_UNI_NOT_DIGIT = "category_uni_not_digit"
-CATEGORY_UNI_SPACE = "category_uni_space"
-CATEGORY_UNI_NOT_SPACE = "category_uni_not_space"
-CATEGORY_UNI_WORD = "category_uni_word"
-CATEGORY_UNI_NOT_WORD = "category_uni_not_word"
-CATEGORY_UNI_LINEBREAK = "category_uni_linebreak"
-CATEGORY_UNI_NOT_LINEBREAK = "category_uni_not_linebreak"
-
-OPCODES = [
-
-    # failure=0 success=1 (just because it looks better that way :-)
-    FAILURE, SUCCESS,
-
-    ANY, ANY_ALL,
-    ASSERT, ASSERT_NOT,
-    AT,
-    BRANCH,
-    CALL,
-    CATEGORY,
-    CHARSET, BIGCHARSET,
-    GROUPREF, GROUPREF_EXISTS, GROUPREF_IGNORE,
-    IN, IN_IGNORE,
-    INFO,
-    JUMP,
-    LITERAL, LITERAL_IGNORE,
-    MARK,
-    MAX_UNTIL,
-    MIN_UNTIL,
-    NOT_LITERAL, NOT_LITERAL_IGNORE,
-    NEGATE,
-    RANGE,
-    REPEAT,
-    REPEAT_ONE,
-    SUBPATTERN,
-    MIN_REPEAT_ONE
-
-]
-
-ATCODES = [
-    AT_BEGINNING, AT_BEGINNING_LINE, AT_BEGINNING_STRING, AT_BOUNDARY,
-    AT_NON_BOUNDARY, AT_END, AT_END_LINE, AT_END_STRING,
-    AT_LOC_BOUNDARY, AT_LOC_NON_BOUNDARY, AT_UNI_BOUNDARY,
-    AT_UNI_NON_BOUNDARY
-]
-
-CHCODES = [
-    CATEGORY_DIGIT, CATEGORY_NOT_DIGIT, CATEGORY_SPACE,
-    CATEGORY_NOT_SPACE, CATEGORY_WORD, CATEGORY_NOT_WORD,
-    CATEGORY_LINEBREAK, CATEGORY_NOT_LINEBREAK, CATEGORY_LOC_WORD,
-    CATEGORY_LOC_NOT_WORD, CATEGORY_UNI_DIGIT, CATEGORY_UNI_NOT_DIGIT,
-    CATEGORY_UNI_SPACE, CATEGORY_UNI_NOT_SPACE, CATEGORY_UNI_WORD,
-    CATEGORY_UNI_NOT_WORD, CATEGORY_UNI_LINEBREAK,
-    CATEGORY_UNI_NOT_LINEBREAK
-]
-
-def makedict(list):
-    d = {}
-    i = 0
-    for item in list:
-        d[item] = i
-        i = i + 1
-    return d
-
-OPCODES = makedict(OPCODES)
-ATCODES = makedict(ATCODES)
-CHCODES = makedict(CHCODES)
-
-# replacement operations for "ignore case" mode
-OP_IGNORE = {
-    GROUPREF: GROUPREF_IGNORE,
-    IN: IN_IGNORE,
-    LITERAL: LITERAL_IGNORE,
-    NOT_LITERAL: NOT_LITERAL_IGNORE
-}
-
-AT_MULTILINE = {
-    AT_BEGINNING: AT_BEGINNING_LINE,
-    AT_END: AT_END_LINE
-}
-
-AT_LOCALE = {
-    AT_BOUNDARY: AT_LOC_BOUNDARY,
-    AT_NON_BOUNDARY: AT_LOC_NON_BOUNDARY
-}
-
-AT_UNICODE = {
-    AT_BOUNDARY: AT_UNI_BOUNDARY,
-    AT_NON_BOUNDARY: AT_UNI_NON_BOUNDARY
-}
-
-CH_LOCALE = {
-    CATEGORY_DIGIT: CATEGORY_DIGIT,
-    CATEGORY_NOT_DIGIT: CATEGORY_NOT_DIGIT,
-    CATEGORY_SPACE: CATEGORY_SPACE,
-    CATEGORY_NOT_SPACE: CATEGORY_NOT_SPACE,
-    CATEGORY_WORD: CATEGORY_LOC_WORD,
-    CATEGORY_NOT_WORD: CATEGORY_LOC_NOT_WORD,
-    CATEGORY_LINEBREAK: CATEGORY_LINEBREAK,
-    CATEGORY_NOT_LINEBREAK: CATEGORY_NOT_LINEBREAK
-}
-
-CH_UNICODE = {
-    CATEGORY_DIGIT: CATEGORY_UNI_DIGIT,
-    CATEGORY_NOT_DIGIT: CATEGORY_UNI_NOT_DIGIT,
-    CATEGORY_SPACE: CATEGORY_UNI_SPACE,
-    CATEGORY_NOT_SPACE: CATEGORY_UNI_NOT_SPACE,
-    CATEGORY_WORD: CATEGORY_UNI_WORD,
-    CATEGORY_NOT_WORD: CATEGORY_UNI_NOT_WORD,
-    CATEGORY_LINEBREAK: CATEGORY_UNI_LINEBREAK,
-    CATEGORY_NOT_LINEBREAK: CATEGORY_UNI_NOT_LINEBREAK
-}
-
-# flags
-SRE_FLAG_TEMPLATE = 1 # template mode (disable backtracking)
-SRE_FLAG_IGNORECASE = 2 # case insensitive
-SRE_FLAG_LOCALE = 4 # honour system locale
-SRE_FLAG_MULTILINE = 8 # treat target as multiline string
-SRE_FLAG_DOTALL = 16 # treat target as a single string
-SRE_FLAG_UNICODE = 32 # use unicode "locale"
-SRE_FLAG_VERBOSE = 64 # ignore whitespace and comments
-SRE_FLAG_DEBUG = 128 # debugging
-SRE_FLAG_ASCII = 256 # use ascii "locale"
-
-# flags for INFO primitive
-SRE_INFO_PREFIX = 1 # has prefix
-SRE_INFO_LITERAL = 2 # entire pattern is literal (given by prefix)
-SRE_INFO_CHARSET = 4 # pattern starts with character from given set
-
-if __name__ == "__main__":
-    def dump(f, d, prefix):
-        items = sorted(d.items(), key=lambda a: a[1])
-        for k, v in items:
-            f.write("#define %s_%s %s\n" % (prefix, k.upper(), v))
-    f = open("sre_constants.h", "w")
-    f.write("""\
-/*
- * Secret Labs' Regular Expression Engine
- *
- * regular expression matching engine
- *
- * NOTE: This file is generated by sre_constants.py.  If you need
- * to change anything in here, edit sre_constants.py and run it.
- *
- * Copyright (c) 1997-2001 by Secret Labs AB.  All rights reserved.
- *
- * See the _sre.c file for information on usage and redistribution.
- */
-
-""")
-
-    f.write("#define SRE_MAGIC %d\n" % MAGIC)
-
-    dump(f, OPCODES, "SRE_OP")
-    dump(f, ATCODES, "SRE")
-    dump(f, CHCODES, "SRE")
-
-    f.write("#define SRE_FLAG_TEMPLATE %d\n" % SRE_FLAG_TEMPLATE)
-    f.write("#define SRE_FLAG_IGNORECASE %d\n" % SRE_FLAG_IGNORECASE)
-    f.write("#define SRE_FLAG_LOCALE %d\n" % SRE_FLAG_LOCALE)
-    f.write("#define SRE_FLAG_MULTILINE %d\n" % SRE_FLAG_MULTILINE)
-    f.write("#define SRE_FLAG_DOTALL %d\n" % SRE_FLAG_DOTALL)
-    f.write("#define SRE_FLAG_UNICODE %d\n" % SRE_FLAG_UNICODE)
-    f.write("#define SRE_FLAG_VERBOSE %d\n" % SRE_FLAG_VERBOSE)
-
-    f.write("#define SRE_INFO_PREFIX %d\n" % SRE_INFO_PREFIX)
-    f.write("#define SRE_INFO_LITERAL %d\n" % SRE_INFO_LITERAL)
-    f.write("#define SRE_INFO_CHARSET %d\n" % SRE_INFO_CHARSET)
-
-    f.close()
-    print("done")