Commit Graph

2916 Commits

Author SHA1 Message Date
owenca 6ab7307177 [clang-format] Fix invalid-code-generation by RemoveBracesLLVM
When removing an r_brace that is the first token of an annotated line, if the
line above ends with a line comment, clang-format generates invalid code by
merging the tokens after the r_brace into the line comment.

Fixes #56488.

Differential Revision: https://reviews.llvm.org/D129742
2022-07-14 15:19:57 -07:00
owenca 36229fa388 [clang-format][NFC] Replace most of std::vector with SmallVector
Differential Revision: https://reviews.llvm.org/D129466
2022-07-13 16:45:22 -07:00
Manuel Klimek f44d28f840 Fix build errors. 2022-07-12 07:43:26 +00:00
Manuel Klimek d6d0dc1f45 [clang-format] Add MacroUnexpander.
MacroUnexpander applies the structural formatting of expanded lines into
UnwrappedLines to the corresponding unexpanded macro calls, resulting in
UnwrappedLines for the macro calls the user typed.

Differential Revision: https://reviews.llvm.org/D88299
2022-07-12 07:11:46 +00:00
owenca c84d29acbf [clang-format][NFC] Clean up IndentForLevel in LevelIndentTracker
Differential Revision: https://reviews.llvm.org/D129105
2022-07-07 15:33:09 -07:00
Marek Kurdej 14c30c70c4 [clang-format] Avoid crash in LevelIndentTracker.
Fixes https://github.com/llvm/llvm-project/issues/56352.

Reviewed By: HazardyKnusperkeks, owenpan, MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D129064
2022-07-07 10:15:45 +02:00
Manuel Klimek 4de0680fbf Fix use of pointer arithmetic instead of iterators. 2022-07-05 08:23:42 +00:00
owenca 47bdf53a5d [clang-format] Break on AfterColon only if not followed by comment
Break after a constructor initializer colon only if it's not followed by a
comment on the same line.

Fixes #41128.
Fixes #43246.

Differential Revision: https://reviews.llvm.org/D129057
2022-07-04 12:34:19 -07:00
Nico Weber b1f0efc06a [clang-format] Tweak help text a bit
In particular, make it clear that `--style=file` is the default,
since there's some confusion about this, e.g. here:
https://stackoverflow.com/questions/61455148/

Differential Revision: https://reviews.llvm.org/D128984
2022-07-03 21:54:14 +02:00
Kevin Cadieux a9bef0707d [clang-format] Fix incorrect isspace input (NFC)
This change fixes a clang-format unit test failure introduced by [D124748](https://reviews.llvm.org/D124748). The `countLeadingWhitespace` function was calling `isspace` with values that could fall outside the valid input range. The valid input range for `isspace` is unsigned 0-255. Values outside this range produce undefined behavior, which on Windows manifests as an assertion being raised in the debug runtime libraries. `countLeadingWhitespace` was calling `isspace` with a signed char that could produce a negative value if the underlying byte's value was 128 or above, which can happen for non-ASCII encodings. The fix is to use `StringRef`'s `bytes_begin` and `bytes_end` iterators to read the values as unsigned chars instead.

This bug can be reproduced by building the `check-clang-unit` target with a DEBUG configuration under Windows. This change is already covered by existing unit tests.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D128786
2022-06-29 10:20:46 -07:00
Huang Zhen-Hong b646f09555 [clang-format] Fix misplacement of `*` in declaration of pointer to struct
Fixes #55810

Differential Revision: https://reviews.llvm.org/D127873
2022-06-29 15:21:02 +08:00
sstwcw 141ad3ba05 [clang-format] Fix uninitialized memory problem
The setLength function checks for the token kind which could be
uninitialized in the previous version.

The problem was introduced in 2e32ff106e.

Reviewed By: MyDeveloperDay, owenpan

Differential Revision: https://reviews.llvm.org/D128607
2022-06-26 22:23:50 +00:00
owenca 664ce34e81 [clang-format] Quit analyzing solution space for large state count
Fixes #56043.

Differential Revision: https://reviews.llvm.org/D128574
2022-06-26 13:15:07 -07:00
sstwcw 2e32ff106e [clang-format] Handle Verilog preprocessor directives
Verilog uses the backtick instead of the hash.  In this revision
backticks are lexed manually and then get labeled as hashes so the logic
for handling C preprocessor stuff don't have to change.  Hashes get
labeled as identifiers for Verilog-specific stuff like delays.

Reviewed By: HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D124749
2022-06-26 02:02:29 +00:00
sstwcw 9ed2e68c9a [clang-format] Parse Verilog if statements
This patch mainly handles treating `begin` as block openers.

While and for statements will be handled in another patch.

Reviewed By: HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D123450
2022-06-26 01:52:15 +00:00
sstwcw 370bee4801 [clang-format] Fix whitespace counting stuff
The current way of counting whitespace would count backticks as
whitespace.  For Verilog stuff we need backticks to be handled
correctly.  For JavaScript the current way is to compare the entire
token text to see if it's a backtick.  However, when the backtick is the
first token following an escaped newline, the escaped newline will be
part of the tok::unknown token.  Verilog has macros and escaped newlines
unlike JavaScript.  So we can't regard an entire tok::unknown token as
whitespace.  Previously, the start of every token would be matched for
newlines.  Now, it is all whitespace instead of just newlines.

The column counting problem has already been fixed for JavaScript in
e71b4cbdd1 by counting columns elsewhere.

Reviewed By: HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D124748
2022-06-26 01:27:27 +00:00
sstwcw 1f69f7ea9a [clang-format] NFC Sort names of format token types
Suggested by HazardyKnusperkeks in D126845.

Reviewed By: HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D126934
2022-06-25 12:09:49 +00:00
Björn Schäpers b3aeca3962 [clang-format] Further improve requires clause detection
If there is a typeish token before the requires, it can't be a requires
expression.

Fixes https://github.com/llvm/llvm-project/issues/56176

Differential Revision: https://reviews.llvm.org/D128496
2022-06-25 04:43:38 +02:00
owenca 07b3446d72 [clang-format] Never analyze insert/remove braces in the same pass
Turn off RemoveBracesLLVM while analyzing InsertBraces and vice
versa to avoid potential interference of each other and better the
performance.

Differential Revision: https://reviews.llvm.org/D127685
2022-06-14 22:42:54 -07:00
owenca 7cb0bc8abf [clang-format] Handle more cases for RemoveBracesLLVM
Call mightFitOneOneline() on the line before the closing brace only
if it is at the level of the block.

Differential Revision: https://reviews.llvm.org/D127614
2022-06-13 12:10:35 -07:00
owenca 05d771021a [clang-format] Fix a bug in RemoveBracesLLVM
Remove the braces of an else block only if the r_brace of the block
is followed by an if.

Differential Revision: https://reviews.llvm.org/D127532
2022-06-11 01:12:11 -07:00
owenca 40a5d79a5c [clang-format][NFC] Format lib/Format and unittests/Format in clang
Reformat these directories with InsertBraces and RemoveBracesLLVM.

Differential Revision: https://reviews.llvm.org/D127366
2022-06-09 02:25:06 -07:00
owenca 5ead1f13a2 [clang-format] Remove braces of else blocks that embody an if block
Fixes #55663.

Differential Revision: https://reviews.llvm.org/D127260
2022-06-08 16:05:20 -07:00
owenca b5b33fbffb [clang-format] Skip parsing a block if it's nested too deep
Fixes #55912.

Differential Revision: https://reviews.llvm.org/D127183
2022-06-07 15:28:03 -07:00
Benjamin Kramer 1fd6f06b9e [format] Fix an uninitialized variable
parseBlock may decide to leave it unchanged. Found by msan.
2022-06-07 18:18:29 +02:00
owenca ec90bc0ea4 [clang-format][NFC] Clean up the unwrapped line parser
Change the signatures of parseBlock(), parseLevel(), and
parseStructuralElement() to support combining else and if when
removing braces. See #55663.

Differential Revision: https://reviews.llvm.org/D127005
2022-06-07 02:58:57 -07:00
owenca fc1c160f73 [clang-format] Handle attributes for for/while loops
Fixes #55853.

Differential Revision: https://reviews.llvm.org/D127054
2022-06-05 15:45:25 -07:00
owenca db15e31212 [clang-format] Handle do-while loops for RemoveBracesLLVM
Also updates the unit tests to match the updated LLVM Coding
Standards.

Differential Revision: https://reviews.llvm.org/D126758
2022-06-02 01:08:40 -07:00
owenca 5bf44aa434 [clang-format][NFC] Refactor UnwrappedLineParser::parseBlock()
Differential Revision: https://reviews.llvm.org/D126358
2022-05-26 13:56:47 -07:00
owenca 5221875a95 [clang-format] Fix an invalid code generation in RemoveBracesLLVM
Fixes #55706.

Differential Revision: https://reviews.llvm.org/D126438
2022-05-26 13:38:04 -07:00
Tyler Chatow 8f70d16c9a [clang-format] Handle attributes in enum declaration.
Fixes https://github.com/llvm/llvm-project/issues/55457

Ensures that attributes in the enum declaration are interpreted
correctly, for instance:

```
enum class [[nodiscard]] E {
  a,
  b
};
```

Reviewed By: MyDeveloperDay, curdeius

Differential Revision: https://reviews.llvm.org/D125848
2022-05-26 15:43:57 +02:00
Marek Kurdej d4d28f2ace [clang-format] Fix QualifierAlignment with global namespace qualified types.
Fixes https://github.com/llvm/llvm-project/issues/55610.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D126096
2022-05-26 15:02:33 +02:00
owenca bebf7bdf9a [clang-format][NFC] Insert/remove braces in clang/lib/Format/
Differential Revision: https://reviews.llvm.org/D126157
2022-05-24 19:06:04 -07:00
owenca 130a9cc0a5 [clang-format] Fix a crash on lambda trailing return type
Fixes #55625.
2022-05-21 15:50:50 -07:00
owenca f4d52cad67 [clang-format] Fix a bug in "AfterControlStatement: MultiLine"
Fixes #55582.

Differential Revision: https://reviews.llvm.org/D125959
2022-05-21 15:10:21 -07:00
owenca 1443dbaba6 [clang-format] Handle "complex" conditionals in RemoveBracesLLVM
Do not remove braces if the conditional of if/for/while might not
fit on a single line even after the opening brace is removed.

Examples:
// ColumnLimit: 20
// 45678901234567890
if (a) { /* Remove. */
  foo();
}
if (-b >= c) { // Keep.
  bar();
}

Differential Revision: https://reviews.llvm.org/D126052
2022-05-21 14:46:38 -07:00
owenca 8bfccb963b [clang-format] Fix an infinite loop in parseJavaEnumBody()
Fixes #55623.
2022-05-21 10:33:59 -07:00
Tobias Hieta 749fb33e82 [clang-format] Don't break lines after pragma region
We have autogenerated pragma regions in our code
which where awkwardly broken up like this:

```
#pragma region foo(bar : hello)
```
becomes

```
#pragma region foo(bar \
                   : hello)
```

This fixes the problem by adding region as a keyword
and handling it the same way as pragma mark

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D125961
2022-05-20 16:11:20 +02:00
Marek Kurdej 573a5b5800 Revert "[clang-format] Fix WhitespaceSensitiveMacros not being honoured when macro closing parenthesis is followed by a newline."
This reverts commit 50cd52d935.

It provoked regressions in C++ and ObjectiveC as described in https://reviews.llvm.org/D123676#3515949.

Reproducers:
```
MACRO_BEGIN
#if A
int f();
#else
int f();
#endif
```

```
NS_SWIFT_NAME(A)
@interface B : C
@property(readonly) D value;
@end
```
2022-05-18 07:27:45 +02:00
owenca 9dffab9d52 [clang-format][NFC] Don't call mightFitOnOneLine() unnecessarily
Clean up UnwrappedLineParser for RemoveBracesLLVM to avoid calling
mightFitOnOneLine() as much as possible.

Differential Revision: https://reviews.llvm.org/D125626
2022-05-16 02:43:35 -07:00
Gregory Fong e57f57841f [clang-format] fix alignment w/o binpacked args
The combination of

- AlignConsecutiveAssignments.Enabled = true
- BinPackArguments = false

would result in the first continuation line of a braced-init-list being
improperly indented (missing a shift) when in a continued function call.
Indentation was also wrong for braced-init-lists continuing a
direct-list-initialization.  Check for opening braced lists in
continuation and ensure that the correct shift occurs.

Fixes https://github.com/llvm/llvm-project/issues/55360

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D125162
2022-05-16 10:25:06 +02:00
Marek Kurdej e20bc892b6 [clang-format] Fix PointerAlignment: Right not working with tab indentation.
Fixes https://github.com/llvm/llvm-project/issues/55407.

Given configuration:
```
UseTab: Always
PointerAlignment: Right
AlignConsecutiveDeclarations: true
```

Before, the pointer was misaligned in this code:
```
void f() {
	unsigned long long big;
	char	      *ptr; // misaligned
	int		   i;
}
```

That was due to the fact that when handling right-aligned pointers, the Spaces were changed but StartOfTokenColumn was not.

Also, a tab was used not only for indentation but for spacing too when using `UseTab: ForIndentation` config option:
```
void f() {
	unsigned long long big;
	char	      *ptr; // \t after char
	int                i;
}
```

Reviewed By: owenpan

Differential Revision: https://reviews.llvm.org/D125528
2022-05-16 09:42:20 +02:00
owenca 2cdabc0322 [clang-format] Handle "if consteval { ... }" for RemoveBracesLLVM
Differential Revision: https://reviews.llvm.org/D125593
2022-05-15 01:33:44 -07:00
owenca 6cd9633c1d [clang-format] Handle comments below r_brace in RemoveBracesLLVM
If a closing brace is followed by a non-trailing comment, the
newline before the closing brace must also be removed.

Differential Revision: https://reviews.llvm.org/D125451
2022-05-12 16:51:18 -07:00
owenca b6d8c84f28 [clang-format] Don't remove braces if a 1-statement body would wrap
Reimplement the RemoveBracesLLVM feature which handles a
single-statement block that would get wrapped.

Fixes #53543.

Differential Revision: https://reviews.llvm.org/D125137
2022-05-12 03:53:08 -07:00
Sergey Semushin dab5e10ea5 [clang-format] fix nested angle brackets parse inside concept definition
Due to how parseBracedList always stopped on the first closing angle
bracket and was used in parsing angle bracketed expression inside concept
definition, nested brackets inside concepts were parsed incorrectly.

nextToken() call before calling parseBracedList is required because
we were processing opening angle bracket inside parseBracedList second
time leading to incorrect logic after my fix.

Fixes https://github.com/llvm/llvm-project/issues/54943
Fixes https://github.com/llvm/llvm-project/issues/54837

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D123896
2022-05-11 14:02:51 +02:00
Marek Kurdej 85ec8a9ac1 [clang-format] Correctly handle SpaceBeforeParens for builtins.
That's a partial fix for https://github.com/llvm/llvm-project/issues/55292.

Before, known builtins behaved differently from other identifiers:
```
void f () { return F (__builtin_LINE() + __builtin_FOO ()); }
```
After:
```
void f () { return F (__builtin_LINE () + __builtin_FOO ()); }
```

Reviewed By: owenpan

Differential Revision: https://reviews.llvm.org/D125085
2022-05-09 11:42:41 +02:00
Marek Kurdej 50cd52d935 [clang-format] Fix WhitespaceSensitiveMacros not being honoured when macro closing parenthesis is followed by a newline.
Fixes https://github.com/llvm/llvm-project/issues/54522.

This fixes regression introduced in 5e5efd8a91.

Before the culprit commit, macros in WhitespaceSensitiveMacros were correctly formatted even if their closing parenthesis weren't followed by semicolon (or, to be precise, when they were followed by a newline).
That commit changed the type of the macro token type from TT_UntouchableMacroFunc to TT_FunctionLikeOrFreestandingMacro.

Correct formatting (with `WhitespaceSensitiveMacros = ['FOO']`):
```
FOO(1+2)
FOO(1+2);
```

Regressed formatting:
```
FOO(1 + 2)
FOO(1+2);
```

Reviewed By: HazardyKnusperkeks, owenpan, ksyx

Differential Revision: https://reviews.llvm.org/D123676
2022-05-09 10:59:33 +02:00
owenca af4cf1c6b8 [clang-format][NFC] Make all TokenAnnotator member functions const
Differential Revision: https://reviews.llvm.org/D125064
2022-05-06 14:46:32 -07:00
owenca 8b626a2caa [clang-format] Fix another bug in AlignConsecutiveAssignments
The ShouldShiftBeAdded lambda checks if extra space should be
added before the wrapped part of a braced list. If the first
element of the list is wrapped, no extra space should be added.

Fixes #55161.

Differential Revision: https://reviews.llvm.org/D124956
2022-05-05 14:48:56 -07:00