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Deal with multiline comments and reduce false positives for common syntax overlaps. Improve error messages.

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This commit is contained in:
Josh Matthews 2015-08-13 19:04:53 -04:00
parent 4e593280ff
commit 7f935f010b
1 changed files with 40 additions and 9 deletions
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49
python/tidy.py
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@ -166,17 +166,30 @@ def check_toml(file_name, contents):
def check_rust(file_name, contents):
if not file_name.endswith(".rs") or file_name.endswith("properties.mako.rs"):
if not file_name.endswith(".rs") or \
file_name.endswith("properties.mako.rs") or \
file_name.endswith("style/build.rs") or \
file_name.endswith("unit/style/stylesheets.rs"):
raise StopIteration
contents = contents.splitlines(True)
comment_depth = 0
merged_lines = ''
for idx, line in enumerate(contents):
# simplify the analisis
line = line.strip()
if line.find('/*') != -1:
if line.find('*/') == -1:
comment_depth += 1
elif line.find('*/') != -1:
comment_depth -= 1
if line.endswith('\\'):
merged_lines += line[:-1]
continue
elif comment_depth:
merged_lines += line
continue
elif merged_lines:
line = merged_lines + line
merged_lines = ''
@ -189,17 +202,27 @@ def check_rust(file_name, contents):
match = re.search(r",[A-Za-z0-9]", line)
if match:
yield (idx + 1, "missing space after comma")
yield (idx + 1, "missing space after ,")
match = re.search(r"[A-Za-z0-9][\+\-/\*%=]", line)
if match:
yield (idx + 1, "missing space before an operator")
# Avoid flagging <Item=Foo> constructs
def is_associated_type(match, line, index):
open_angle = line[0:match.end()].rfind('<')
close_angle = line[open_angle:].find('>') if open_angle != -1 else -1
is_equals = match.group(0)[index] == '='
generic_open = open_angle != -1 and open_angle < match.start()
generic_close = close_angle != -1 and close_angle + open_angle >= match.end()
return is_equals and generic_open and generic_close
# - not included because of scientific notation (1e-6)
match = re.search(r"[A-Za-z0-9][\+/\*%=]", line)
if match and not is_associated_type(match, line, 1):
yield (idx + 1, "missing space before %s" % match.group(0)[1])
# * not included because of dereferencing and casting
# - not included because of unary negation
match = re.search(r"[\+/\%=][A-Za-z0-9]", line)
if match:
yield (idx + 1, "missing space after an operator")
if match and not is_associated_type(match, line, 0):
yield (idx + 1, "missing space after %s" % match.group(0)[0])
match = re.search(r"\)->", line)
if match:
@ -209,12 +232,20 @@ def check_rust(file_name, contents):
if match:
yield (idx + 1, "missing space after ->")
if line.find(" :") != -1:
# Avoid flagging ::crate::mod
if line.find(" :[^:]") != -1:
yield (idx + 1, "extra space before :")
# Avoid flagging crate::mod
match = re.search(r"[^:]:[A-Za-z]", line)
if match:
# Avoid flagging macros like $t1:expr
if line[0:match.end()].rfind('$') == -1:
yield (idx + 1, "missing space after :")
match = re.search(r"[A-Za-z0-9\)]{", line)
if match:
yield (idx + 1, "extra space before {")
yield (idx + 1, "missing space before {")
if line.startswith("use ") and "{" in line and "}" not in line:
yield (idx + 1, "use statement spans multiple lines")