def c(self, snipname, snippath):
options = DefaultOptions()
options.stats_comment = False
with open(snippath, 'rt', encoding='utf-8') as f:
snippet = f.read()
jspath = os.path.join(SNIPPETSDIR, snipname + ".js")
if os.path.exists(jspath):
with open(jspath, 'rt', encoding='utf-8') as f:
options.extra_js_code = f.read()
else:
options.extra_js_code = "P.main();"
# TODO this is a hellish monstrosity
# ---- apply all directives ---------------
directives_match = DIRECTIVE_REGEXP.search(snippet)
if directives_match:
for directive in directives_match.group(1).split(','):
tokens = directive.split(maxsplit=1)
self.assertEqual(2, len(tokens), tokens)
k, v = tokens
vtype = type(getattr(options, k))
if vtype == bool:
v = v == 'True'
else:
v = vtype(v)
setattr(options, k, v)
# ---- find expected session if any ---------------
session_match = SESSION_REGEXP.search(snippet)
# ---- parse & check ----------------------
try:
module = build_tree(options, path=None, buf=snippet)
except CompilationFailed as cf:
logged_errors = cf.errors
else:
logged_errors = []
snippet_errors = list(ERROR_REGEXP.finditer(snippet))
# ---- match errors -----------------------
# make sure the analysis raised as many errors as expected
sc, lc = len(snippet_errors), len(logged_errors)
self.assertEqual(sc, lc, "expected {} errors but {} were reported: {}"
.format(sc, lc, logged_errors))
assert not logged_errors or not session_match,\
"expected a session but errors were raised"
# check each error
for i, error, match in zip(count(), logged_errors, snippet_errors):
classname = match.group(1)
if classname.startswith('kw:'):
class_ = syntax.ExpectedKeyword
else:
class_ = getattr(syntax, classname, None) or getattr(semantic, classname)
self.assertIsNotNone(class_, "unknown error class: '{}'".format(classname))
self.assertIs(error.__class__, class_,
"wrong error found at error marker #{}".format(i))
self.assertEqual(error.pos.char, match.end(2),
"error #{} wasn't reported at expected position (raised: {})"
.format(i, error))
if class_ is syntax.ExpectedKeyword:
raw_kws = classname[1+classname.find(':'):].split(',')
expected_keywords = set(getattr(kw, r) for r in raw_kws)
self.assertSetEqual(expected_keywords, set(error.expected_keywords))
# ---- stop there if there were any errors -------------
if snippet_errors:
return
# ---- compile to JS directly ----------------
js1 = translate_tree(options, module, 'js')
# ---- compile to JS through regenerated LDA -----------
lda1 = translate_tree(options, module, 'lda')
regen_module = build_tree(options, lda1)
js2 = translate_tree(options, regen_module, 'js')
# ---- both JS versions of the same program must end up identical
# Instead of jumping through these hoops (LDA->LDA->JS), we could've
# compared the original program with the regenerated LDA code, but then
# we'd have to keep track of comments, whitespace, etc. In other words,
# a ton of work for very little benefit.
self.assertEqual(js1, js2)
# ---- run JS -------------------------
if not module.algorithms:
return
if session_match:
fragments = session_match.group('session').strip().split('|')
snippet_output = ' '.join(f.strip() for f in fragments[0::2])
snippet_input = '\n'.join(f.strip() for f in fragments[1::2])
else:
snippet_output = ''
snippet_input = ''
gotten_output = jsshell.run(js1, snippet_input)
self.assertEqual(snippet_output, gotten_output.strip())
ap.add_argument('--ignore-case', '-c', action='store_true',
help="""Ignorer la casse dans les identificateurs et les mot-clés""")
ap.add_argument('--execute', '-x', action='store_true',
help="""Exécuter le programme immédiatement s'il ne contient
aucune erreur""")
args = ap.parse_args()
args.extra_js_code = ""
args.stats_comment = True
try:
module = build_tree(args, None, args.path)
except CompilationFailed as cf:
for error in cf.errors:
print(error.pretty(cf.buf), file=sys.stderr)
sys.exit(1)
if args.no_output:
sys.exit(0)
code = translate_tree(args, module, args.format)
if args.execute:
assert args.format == 'js', "on ne peut exécuter que du JavaScript !"
import jsshell
jsshell.run_interactive(code + "\nP.main();")
elif args.output_file:
with open(args.output_file, 'wt', encoding='utf8') as f:
f.write(code)
else:
print(code)