aboutsummaryrefslogtreecommitdiff
path: root/lib/Format/Format.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Format/Format.cpp')
-rw-r--r--lib/Format/Format.cpp123
1 files changed, 61 insertions, 62 deletions
diff --git a/lib/Format/Format.cpp b/lib/Format/Format.cpp
index 29cbc3624c..9a0fa7d31d 100644
--- a/lib/Format/Format.cpp
+++ b/lib/Format/Format.cpp
@@ -34,6 +34,7 @@ struct TokenAnnotation {
TT_TemplateCloser,
TT_BinaryOperator,
TT_UnaryOperator,
+ TT_TrailingUnaryOperator,
TT_OverloadedOperator,
TT_PointerOrReference,
TT_ConditionalExpr,
@@ -550,8 +551,8 @@ public:
determineTokenTypes();
bool IsObjCMethodDecl =
- (Line.Tokens.size() > 0 &&
- (Annotations[0].Type == TokenAnnotation::TT_ObjCMethodSpecifier));
+ (Line.Tokens.size() > 0 &&
+ (Annotations[0].Type == TokenAnnotation::TT_ObjCMethodSpecifier));
for (int i = 1, e = Line.Tokens.size(); i != e; ++i) {
TokenAnnotation &Annotation = Annotations[i];
@@ -561,21 +562,19 @@ public:
if (Annotation.Type == TokenAnnotation::TT_CtorInitializerColon) {
Annotation.MustBreakBefore = true;
Annotation.SpaceRequiredBefore = true;
- } else if (IsObjCMethodDecl &&
- Line.Tokens[i].Tok.is(tok::identifier) &&
- (i != e-1) && Line.Tokens[i+1].Tok.is(tok::colon) &&
- Line.Tokens[i-1].Tok.is(tok::identifier)) {
+ } else if (IsObjCMethodDecl && Line.Tokens[i].Tok.is(tok::identifier) &&
+ (i != e - 1) && Line.Tokens[i + 1].Tok.is(tok::colon) &&
+ Line.Tokens[i - 1].Tok.is(tok::identifier)) {
Annotation.CanBreakBefore = true;
Annotation.SpaceRequiredBefore = true;
- } else if (IsObjCMethodDecl &&
- Line.Tokens[i].Tok.is(tok::identifier) &&
- Line.Tokens[i-1].Tok.is(tok::l_paren) &&
- Line.Tokens[i-2].Tok.is(tok::colon)) {
+ } else if (IsObjCMethodDecl && Line.Tokens[i].Tok.is(tok::identifier) &&
+ Line.Tokens[i - 1].Tok.is(tok::l_paren) &&
+ Line.Tokens[i - 2].Tok.is(tok::colon)) {
// Don't break this identifier as ':' or identifier
// before it will break.
Annotation.CanBreakBefore = false;
} else if (Line.Tokens[i].Tok.is(tok::at) &&
- Line.Tokens[i-2].Tok.is(tok::at)) {
+ Line.Tokens[i - 2].Tok.is(tok::at)) {
// Don't put two objc's '@' on the same line. This could happen,
// as in, @optinal @property ...
Annotation.MustBreakBefore = true;
@@ -584,14 +583,13 @@ public:
Line.Tokens[0].Tok.isNot(tok::kw_case) && !IsObjCMethodDecl &&
(i != e - 1);
// Don't break at ':' if identifier before it can beak.
- if (IsObjCMethodDecl &&
- Line.Tokens[i-1].Tok.is(tok::identifier) &&
- Annotations[i-1].CanBreakBefore)
+ if (IsObjCMethodDecl && Line.Tokens[i - 1].Tok.is(tok::identifier) &&
+ Annotations[i - 1].CanBreakBefore)
Annotation.CanBreakBefore = false;
- } else if (Annotations[i - 1].Type ==
- TokenAnnotation::TT_ObjCMethodSpecifier)
+ } else if (
+ Annotations[i - 1].Type == TokenAnnotation::TT_ObjCMethodSpecifier) {
Annotation.SpaceRequiredBefore = true;
- else if (Annotations[i - 1].Type == TokenAnnotation::TT_UnaryOperator) {
+ } else if (Annotations[i - 1].Type == TokenAnnotation::TT_UnaryOperator) {
Annotation.SpaceRequiredBefore = false;
} else if (Annotation.Type == TokenAnnotation::TT_UnaryOperator) {
Annotation.SpaceRequiredBefore =
@@ -615,17 +613,17 @@ public:
} else if (Line.Tokens[i].Tok.is(tok::less) &&
Line.Tokens[0].Tok.is(tok::hash)) {
Annotation.SpaceRequiredBefore = true;
- } else if (IsObjCMethodDecl &&
- Line.Tokens[i - 1].Tok.is(tok::r_paren) &&
- Line.Tokens[i].Tok.is(tok::identifier))
+ } else if (IsObjCMethodDecl && Line.Tokens[i - 1].Tok.is(tok::r_paren) &&
+ Line.Tokens[i].Tok.is(tok::identifier)) {
// Don't space between ')' and <id>
Annotation.SpaceRequiredBefore = false;
- else if (IsObjCMethodDecl &&
- Line.Tokens[i - 1].Tok.is(tok::colon) &&
- Line.Tokens[i].Tok.is(tok::l_paren))
+ } else if (IsObjCMethodDecl && Line.Tokens[i - 1].Tok.is(tok::colon) &&
+ Line.Tokens[i].Tok.is(tok::l_paren)) {
// Don't space between ':' and '('
Annotation.SpaceRequiredBefore = false;
- else {
+ } else if (Annotation.Type == TokenAnnotation::TT_TrailingUnaryOperator) {
+ Annotation.SpaceRequiredBefore = false;
+ } else {
Annotation.SpaceRequiredBefore =
spaceRequiredBetween(Line.Tokens[i - 1].Tok, Line.Tokens[i].Tok);
}
@@ -657,14 +655,15 @@ private:
Tok.Tok.is(tok::slashequal))
AssignmentEncountered = true;
- if (Tok.Tok.is(tok::star) || Tok.Tok.is(tok::amp))
+ if (Tok.Tok.is(tok::star) || Tok.Tok.is(tok::amp)) {
Annotation.Type = determineStarAmpUsage(i, AssignmentEncountered);
- else if ((Tok.Tok.is(tok::minus) || Tok.Tok.is(tok::plus)) &&
- Tok.Tok.isAtStartOfLine())
- Annotation.Type = TokenAnnotation::TT_ObjCMethodSpecifier;
- else if (isUnaryOperator(i))
+ } else if (Tok.Tok.is(tok::minus) || Tok.Tok.is(tok::plus)) {
+ Annotation.Type = determinePlusMinusUsage(i);
+ } else if (Tok.Tok.is(tok::minusminus) || Tok.Tok.is(tok::plusplus)) {
+ Annotation.Type = determineIncrementUsage(i);
+ } else if (Tok.Tok.is(tok::exclaim)) {
Annotation.Type = TokenAnnotation::TT_UnaryOperator;
- else if (isBinaryOperator(Line.Tokens[i]))
+ } else if (isBinaryOperator(Line.Tokens[i]))
Annotation.Type = TokenAnnotation::TT_BinaryOperator;
else if (Tok.Tok.is(tok::comment)) {
StringRef Data(SourceMgr.getCharacterData(Tok.Tok.getLocation()),
@@ -677,29 +676,6 @@ private:
}
}
- bool isUnaryOperator(unsigned Index) {
- const Token &Tok = Line.Tokens[Index].Tok;
-
- // '++', '--' and '!' are always unary operators.
- if (Tok.is(tok::minusminus) || Tok.is(tok::plusplus) ||
- Tok.is(tok::exclaim))
- return true;
-
- // The other possible unary operators are '+' and '-' as we
- // determine the usage of '*' and '&' in determineStarAmpUsage().
- if (Tok.isNot(tok::minus) && Tok.isNot(tok::plus))
- return false;
-
- // Use heuristics to recognize unary operators.
- const Token &PreviousTok = Line.Tokens[Index - 1].Tok;
- if (PreviousTok.is(tok::equal) || PreviousTok.is(tok::l_paren) ||
- PreviousTok.is(tok::comma) || PreviousTok.is(tok::l_square))
- return true;
-
- // Fall back to marking the token as binary operator.
- return Annotations[Index - 1].Type == TokenAnnotation::TT_BinaryOperator;
- }
-
bool isBinaryOperator(const FormatToken &Tok) {
switch (Tok.Tok.getKind()) {
case tok::equal:
@@ -731,7 +707,8 @@ private:
return TokenAnnotation::TT_UnaryOperator;
if (Line.Tokens[Index - 1].Tok.isLiteral() ||
- Line.Tokens[Index + 1].Tok.isLiteral())
+ Line.Tokens[Index + 1].Tok.isLiteral() ||
+ Line.Tokens[Index + 1].Tok.is(tok::kw_sizeof))
return TokenAnnotation::TT_BinaryOperator;
// It is very unlikely that we are going to find a pointer or reference type
@@ -742,8 +719,32 @@ private:
return TokenAnnotation::TT_PointerOrReference;
}
- bool isIfForOrWhile(Token Tok) {
- return Tok.is(tok::kw_if) || Tok.is(tok::kw_for) || Tok.is(tok::kw_while);
+ TokenAnnotation::TokenType determinePlusMinusUsage(unsigned Index) {
+ // At the start of the line, +/- specific ObjectiveC method declarations.
+ if (Index == 0)
+ return TokenAnnotation::TT_ObjCMethodSpecifier;
+
+ // Use heuristics to recognize unary operators.
+ const Token &PreviousTok = Line.Tokens[Index - 1].Tok;
+ if (PreviousTok.is(tok::equal) || PreviousTok.is(tok::l_paren) ||
+ PreviousTok.is(tok::comma) || PreviousTok.is(tok::l_square) ||
+ PreviousTok.is(tok::question) || PreviousTok.is(tok::colon))
+ return TokenAnnotation::TT_UnaryOperator;
+
+ // There can't be to consecutive binary operators.
+ if (Annotations[Index - 1].Type == TokenAnnotation::TT_BinaryOperator)
+ return TokenAnnotation::TT_UnaryOperator;
+
+ // Fall back to marking the token as binary operator.
+ return TokenAnnotation::TT_BinaryOperator;
+ }
+
+ /// \brief Determine whether ++/-- are pre- or post-increments/-decrements.
+ TokenAnnotation::TokenType determineIncrementUsage(unsigned Index) {
+ if (Index != 0 && Line.Tokens[Index - 1].Tok.is(tok::identifier))
+ return TokenAnnotation::TT_TrailingUnaryOperator;
+
+ return TokenAnnotation::TT_UnaryOperator;
}
bool spaceRequiredBetween(Token Left, Token Right) {
@@ -778,17 +779,15 @@ private:
return false;
if (Left.is(tok::colon) || Right.is(tok::colon))
return true;
- if ((Left.is(tok::plusplus) && Right.isAnyIdentifier()) ||
- (Left.isAnyIdentifier() && Right.is(tok::plusplus)) ||
- (Left.is(tok::minusminus) && Right.isAnyIdentifier()) ||
- (Left.isAnyIdentifier() && Right.is(tok::minusminus)))
- return false;
if (Left.is(tok::l_paren))
return false;
if (Left.is(tok::hash))
return false;
if (Right.is(tok::l_paren)) {
- return !Left.isAnyIdentifier() || isIfForOrWhile(Left);
+ return Left.is(tok::kw_if) || Left.is(tok::kw_for) ||
+ Left.is(tok::kw_while) || Left.is(tok::kw_switch) ||
+ (Left.isNot(tok::identifier) && Left.isNot(tok::kw_sizeof) &&
+ Left.isNot(tok::kw_typeof));
}
return true;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-11 15:18:13 +0000