FazBrowse GitHub Viewer | Trending |
URL:
| Home
Tools: [Download Repo ZIP]   [Original HTTPS Page]

fix: handle operators in constructor default arguments by ravenCrown0627 · Pull Request #449 · cpplint/cpplint · GitHub

/ cpplint Public

fix: handle operators in constructor default arguments #449

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
ravenCrown0627 wants to merge 1 commit into
base: develop
Choose a base branch
Could not load branches
Branch not found: {{ refName }}

Are you sure you want to change the base?

Some commits from the old base branch may be removed from the timeline, and old review comments may become outdated.
from
Conversation 5 Commits 1 Checks 6 Files changed
Open

fix: handle operators in constructor default arguments #449

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension .py  (2) All 1 file type selected
Viewed files
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Unified
Split
Hide whitespace
Diff view
Unified
Split
Hide whitespace
11 changes: 6 additions & 5 deletions cpplint.py
Show comments
View file
Open in desktop
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
Show hidden characters
Original file line number Diff line number Diff line change
Expand Up @@ -3943,14 +3943,15 @@ def CheckForNonStandardConstructs(filename, clean_lines, linenum, nesting_state,
else:
constructor_args = explicit_constructor_match.group(2).split(",")

# collapse arguments so that commas in template parameter lists and function
# argument parameter lists don't split arguments in two
# Collapse commas inside template and function parameter lists.

aaronliu0130 Jul 25, 2026

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Is there a reason for this change?
i = 0
while i < len(constructor_args):
constructor_arg = constructor_args[i]
while constructor_arg.count("<") > constructor_arg.count(">") or constructor_arg.count(
"("
) > constructor_arg.count(")"):
# Ignore `<`-prefixed operators when balancing template brackets.
while i + 1 < len(constructor_args) and (
re.sub(r"<<=?|<=", "", constructor_arg).count("<") > constructor_arg.count(">")
or constructor_arg.count("(") > constructor_arg.count(")")
Comment on lines +3952 to +3953

aaronliu0130 Jul 25, 2026

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

This seems very inefficient. We were already using .count to do four optimized single-character passes, and now we add a regex pass on top of that. Not to mention we're sort of simulating regex with the consuming (del) of tokens below, and adding onto our misery by going over parts of constructor_arg we've already searched again with each loop. Surely we can simplify at least this part to O(n).
):
constructor_arg += "," + constructor_args[i + 1]
del constructor_args[i + 1]
constructor_args[i] = constructor_arg
Expand Down
31 changes: 31 additions & 0 deletions cpplint_unittest.py
Show comments
View file
Open in desktop
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
Show hidden characters
Original file line number Diff line number Diff line change
Expand Up @@ -1810,6 +1810,37 @@ class Foo {
"Constructors callable with one argument should be marked explicit."
" [runtime/explicit] [4]",
)
# `<`-containing operators are not confused with template brackets.
self.TestMultiLineLint(
"""
class A {
A(int a, int b, int c = 1 << 1);
};""",
"",
)
self.TestMultiLineLint(
"""
class A {
A(int a = (value <<= 1), int b = 0, int c = 0);
};""",
"Constructors callable with one argument should be marked explicit."
" [runtime/explicit] [4]",
)
self.TestMultiLineLint(
"""
class A {
A(int a, bool b = 1 <= 1, int c = 0);
};""",
"Constructors callable with one argument should be marked explicit."
" [runtime/explicit] [4]",
)
self.TestMultiLineLint(
"""
class A {
A(int a, int b, bool c = 1 < 2);
};""",
"",
)
# explicit no-argument constructors are just fine
self.TestMultiLineLint(
"""
Expand Down
Back | FazBrowse Home | New Git URL