Fixes bug 20587 - Add K&R break before braces style
Summary:
http://llvm.org/bugs/show_bug.cgi?id=20587
Added K&R style. It could be enabled by the following option:
```
BreakBeforeBraces: KernighanRitchie
```
This style is like `Attach`, but break *only* before function
declarations.
As I can see, no additional logic required to support this style, any
style different from other styles automagically satisfies K&R.
Reviewers: djasper
Reviewed By: djasper
Subscribers: cfe-commits, klimek
Differential Revision: http://reviews.llvm.org/D4837
llvm-svn: 215354
diff --git a/clang/lib/Format/UnwrappedLineParser.cpp b/clang/lib/Format/UnwrappedLineParser.cpp
index 9f355c9..7e55e04 100644
--- a/clang/lib/Format/UnwrappedLineParser.cpp
+++ b/clang/lib/Format/UnwrappedLineParser.cpp
@@ -434,6 +434,19 @@
return I->Tok->is(tok::l_paren);
}
+static bool ShouldBreakBeforeBrace(const FormatStyle &Style,
+ const FormatToken &InitialToken) {
+ switch (Style.BreakBeforeBraces) {
+ case FormatStyle::BS_Linux:
+ return InitialToken.isOneOf(tok::kw_namespace, tok::kw_class);
+ case FormatStyle::BS_Allman:
+ case FormatStyle::BS_GNU:
+ return true;
+ default:
+ return false;
+ }
+}
+
void UnwrappedLineParser::parseChildBlock() {
FormatTok->BlockKind = BK_Block;
nextToken();
@@ -1167,13 +1180,13 @@
void UnwrappedLineParser::parseNamespace() {
assert(FormatTok->Tok.is(tok::kw_namespace) && "'namespace' expected");
+
+ const FormatToken &InitialToken = *FormatTok;
nextToken();
if (FormatTok->Tok.is(tok::identifier))
nextToken();
if (FormatTok->Tok.is(tok::l_brace)) {
- if (Style.BreakBeforeBraces == FormatStyle::BS_Linux ||
- Style.BreakBeforeBraces == FormatStyle::BS_Allman ||
- Style.BreakBeforeBraces == FormatStyle::BS_GNU)
+ if (ShouldBreakBeforeBrace(Style, InitialToken))
addUnwrappedLine();
bool AddLevel = Style.NamespaceIndentation == FormatStyle::NI_All ||
@@ -1327,6 +1340,7 @@
}
void UnwrappedLineParser::parseRecord() {
+ const FormatToken &InitialToken = *FormatTok;
nextToken();
if (FormatTok->isOneOf(tok::identifier, tok::coloncolon, tok::kw___attribute,
tok::kw___declspec, tok::kw_alignas)) {
@@ -1361,9 +1375,7 @@
}
}
if (FormatTok->Tok.is(tok::l_brace)) {
- if (Style.BreakBeforeBraces == FormatStyle::BS_Linux ||
- Style.BreakBeforeBraces == FormatStyle::BS_Allman ||
- Style.BreakBeforeBraces == FormatStyle::BS_GNU)
+ if (ShouldBreakBeforeBrace(Style, InitialToken))
addUnwrappedLine();
parseBlock(/*MustBeDeclaration=*/true, /*AddLevel=*/true,