unsigned ContinuationIndenter::moveStateToNextToken(LineState &State,
bool DryRun, bool Newline) {
- const FormatToken &Current = *State.NextToken;
assert(State.Stack.size());
+ const FormatToken &Current = *State.NextToken;
if (Current.Type == TT_InheritanceColon)
State.Stack.back().AvoidBinPacking = true;
State.Stack.back().JSFunctionInlined = !Newline;
}
+ moveStatePastFakeLParens(State, Newline);
+ moveStatePastScopeOpener(State, Newline);
+ moveStatePastScopeCloser(State);
+ moveStatePastFakeRParens(State);
+
+ if (Current.isStringLiteral() && State.StartOfStringLiteral == 0) {
+ State.StartOfStringLiteral = State.Column;
+ } else if (!Current.isOneOf(tok::comment, tok::identifier, tok::hash) &&
+ !Current.isStringLiteral()) {
+ State.StartOfStringLiteral = 0;
+ }
+
+ State.Column += Current.ColumnWidth;
+ State.NextToken = State.NextToken->Next;
+ unsigned Penalty = breakProtrudingToken(Current, State, DryRun);
+ if (State.Column > getColumnLimit(State)) {
+ unsigned ExcessCharacters = State.Column - getColumnLimit(State);
+ Penalty += Style.PenaltyExcessCharacter * ExcessCharacters;
+ }
+
+ if (Current.Role)
+ Current.Role->formatFromToken(State, this, DryRun);
+ // If the previous has a special role, let it consume tokens as appropriate.
+ // It is necessary to start at the previous token for the only implemented
+ // role (comma separated list). That way, the decision whether or not to break
+ // after the "{" is already done and both options are tried and evaluated.
+ // FIXME: This is ugly, find a better way.
+ if (Previous && Previous->Role)
+ Penalty += Previous->Role->formatAfterToken(State, this, DryRun);
+
+ return Penalty;
+}
+
+void ContinuationIndenter::moveStatePastFakeLParens(LineState &State,
+ bool Newline) {
+ const FormatToken &Current = *State.NextToken;
+ const FormatToken *Previous = Current.getPreviousNonComment();
+
// Don't add extra indentation for the first fake parenthesis after
// 'return', assignments or opening <({[. The indentation for these cases
// is special cased.
State.Stack.push_back(NewParenState);
SkipFirstExtraIndent = false;
}
+}
- // If we encounter an opening (, [, { or <, we add a level to our stacks to
- // prepare for the following tokens.
- if (Current.opensScope()) {
- unsigned NewIndent;
- unsigned NewIndentLevel = State.Stack.back().IndentLevel;
- bool AvoidBinPacking;
- bool BreakBeforeParameter = false;
- if (Current.is(tok::l_brace) ||
- Current.Type == TT_ArrayInitializerLSquare) {
- if (Current.MatchingParen && Current.BlockKind == BK_Block &&
- State.Stack.back().LambdasFound <= 1) {
- // If this is an l_brace starting a nested block, we pretend (wrt. to
- // indentation) that we already consumed the corresponding r_brace.
- // Thus, we remove all ParenStates caused by fake parentheses that end
- // at the r_brace. The net effect of this is that we don't indent
- // relative to the l_brace, if the nested block is the last parameter of
- // a function. For example, this formats:
- //
- // SomeFunction(a, [] {
- // f(); // break
- // });
- //
- // instead of:
- // SomeFunction(a, [] {
- // f(); // break
- // });
- //
- // If we have already found more than one lambda introducers on this
- // level, we opt out of this because similarity between the lambdas is
- // more important.
- for (unsigned i = 0; i != Current.MatchingParen->FakeRParens; ++i) {
- assert(State.Stack.size() > 1);
- if (State.Stack.size() == 1) {
- // Do not pop the last element.
- break;
- }
- State.Stack.pop_back();
- }
- // For some reason, ObjC blocks are indented like continuations.
- NewIndent =
- State.Stack.back().LastSpace + (Current.Type == TT_ObjCBlockLBrace
- ? Style.ContinuationIndentWidth
- : Style.IndentWidth);
- ++NewIndentLevel;
- BreakBeforeParameter = true;
- } else {
- NewIndent = State.Stack.back().LastSpace;
- if (Current.opensBlockTypeList(Style)) {
- NewIndent += Style.IndentWidth;
- NewIndent = std::min(State.Column + 2, NewIndent);
- ++NewIndentLevel;
- } else {
- NewIndent += Style.ContinuationIndentWidth;
- NewIndent = std::min(State.Column + 1, NewIndent);
- }
+void ContinuationIndenter::moveStatePastFakeRParens(LineState &State) {
+ const FormatToken &Current = *State.NextToken;
+
+ // Remove scopes created by fake parenthesis.
+ if (Current.isNot(tok::r_brace) ||
+ (Current.MatchingParen && Current.MatchingParen->BlockKind != BK_Block)) {
+ // Don't remove FakeRParens attached to r_braces that surround nested blocks
+ // as they will have been removed early (see above).
+ for (unsigned i = 0, e = Current.FakeRParens; i != e; ++i) {
+ unsigned VariablePos = State.Stack.back().VariablePos;
+ assert(State.Stack.size() > 1);
+ if (State.Stack.size() == 1) {
+ // Do not pop the last element.
+ break;
}
- const FormatToken *NextNoComment = Current.getNextNonComment();
- AvoidBinPacking = Current.BlockKind == BK_Block ||
- Current.Type == TT_ArrayInitializerLSquare ||
- Current.Type == TT_DictLiteral ||
- Style.Language == FormatStyle::LK_Proto ||
- !Style.BinPackParameters ||
- (NextNoComment &&
- NextNoComment->Type == TT_DesignatedInitializerPeriod);
- } else {
- NewIndent = Style.ContinuationIndentWidth +
- std::max(State.Stack.back().LastSpace,
- State.Stack.back().StartOfFunctionCall);
- AvoidBinPacking = !Style.BinPackParameters ||
- (Style.ExperimentalAutoDetectBinPacking &&
- (Current.PackingKind == PPK_OnePerLine ||
- (!BinPackInconclusiveFunctions &&
- Current.PackingKind == PPK_Inconclusive)));
- // If this '[' opens an ObjC call, determine whether all parameters fit
- // into one line and put one per line if they don't.
- if (Current.Type == TT_ObjCMethodExpr && Style.ColumnLimit != 0 &&
- getLengthToMatchingParen(Current) + State.Column >
- getColumnLimit(State))
- BreakBeforeParameter = true;
+ State.Stack.pop_back();
+ State.Stack.back().VariablePos = VariablePos;
}
+ }
+}
+
+void ContinuationIndenter::moveStatePastScopeOpener(LineState &State,
+ bool Newline) {
+ const FormatToken &Current = *State.NextToken;
+ if (!Current.opensScope())
+ return;
- bool NoLineBreak = State.Stack.back().NoLineBreak ||
- (Current.Type == TT_TemplateOpener &&
- State.Stack.back().ContainsUnwrappedBuilder);
- State.Stack.push_back(ParenState(NewIndent, NewIndentLevel,
- State.Stack.back().LastSpace,
- AvoidBinPacking, NoLineBreak));
- State.Stack.back().BreakBeforeParameter = BreakBeforeParameter;
+ if (Current.MatchingParen && Current.BlockKind == BK_Block) {
+ moveStateToNewBlock(State);
+ return;
}
+ unsigned NewIndent;
+ unsigned NewIndentLevel = State.Stack.back().IndentLevel;
+ bool AvoidBinPacking;
+ bool BreakBeforeParameter = false;
+ if (Current.is(tok::l_brace) || Current.Type == TT_ArrayInitializerLSquare) {
+ NewIndent = State.Stack.back().LastSpace;
+ if (Current.opensBlockTypeList(Style)) {
+ NewIndent += Style.IndentWidth;
+ NewIndent = std::min(State.Column + 2, NewIndent);
+ ++NewIndentLevel;
+ } else {
+ NewIndent += Style.ContinuationIndentWidth;
+ NewIndent = std::min(State.Column + 1, NewIndent);
+ }
+ const FormatToken *NextNoComment = Current.getNextNonComment();
+ AvoidBinPacking = Current.Type == TT_ArrayInitializerLSquare ||
+ Current.Type == TT_DictLiteral ||
+ Style.Language == FormatStyle::LK_Proto ||
+ !Style.BinPackParameters ||
+ (NextNoComment &&
+ NextNoComment->Type == TT_DesignatedInitializerPeriod);
+ } else {
+ NewIndent = Style.ContinuationIndentWidth +
+ std::max(State.Stack.back().LastSpace,
+ State.Stack.back().StartOfFunctionCall);
+ AvoidBinPacking = !Style.BinPackParameters ||
+ (Style.ExperimentalAutoDetectBinPacking &&
+ (Current.PackingKind == PPK_OnePerLine ||
+ (!BinPackInconclusiveFunctions &&
+ Current.PackingKind == PPK_Inconclusive)));
+ // If this '[' opens an ObjC call, determine whether all parameters fit
+ // into one line and put one per line if they don't.
+ if (Current.Type == TT_ObjCMethodExpr && Style.ColumnLimit != 0 &&
+ getLengthToMatchingParen(Current) + State.Column >
+ getColumnLimit(State))
+ BreakBeforeParameter = true;
+ }
+ bool NoLineBreak = State.Stack.back().NoLineBreak ||
+ (Current.Type == TT_TemplateOpener &&
+ State.Stack.back().ContainsUnwrappedBuilder);
+ State.Stack.push_back(ParenState(NewIndent, NewIndentLevel,
+ State.Stack.back().LastSpace,
+ AvoidBinPacking, NoLineBreak));
+ State.Stack.back().BreakBeforeParameter = BreakBeforeParameter;
+}
+
+void ContinuationIndenter::moveStatePastScopeCloser(LineState &State) {
+ const FormatToken &Current = *State.NextToken;
+ if (!Current.closesScope())
+ return;
+
// If we encounter a closing ), ], } or >, we can remove a level from our
// stacks.
if (State.Stack.size() > 1 &&
if (NextNonComment && NextNonComment->isNot(tok::l_square))
State.Stack.back().StartOfArraySubscripts = 0;
}
+}
- // Remove scopes created by fake parenthesis.
- if (Current.isNot(tok::r_brace) ||
- (Current.MatchingParen && Current.MatchingParen->BlockKind != BK_Block)) {
- // Don't remove FakeRParens attached to r_braces that surround nested blocks
- // as they will have been removed early (see above).
- for (unsigned i = 0, e = Current.FakeRParens; i != e; ++i) {
- unsigned VariablePos = State.Stack.back().VariablePos;
+void ContinuationIndenter::moveStateToNewBlock(LineState &State) {
+ // If this is an l_brace starting a nested block, we pretend (wrt. to
+ // indentation) that we already consumed the corresponding r_brace. Thus, we
+ // remove all ParenStates caused by fake parentheses that end at the r_brace.
+ // The net effect of this is that we don't indent relative to the l_brace, if
+ // the nested block is the last parameter of a function. For example, this
+ // formats:
+ //
+ // SomeFunction(a, [] {
+ // f(); // break
+ // });
+ //
+ // instead of:
+ // SomeFunction(a, [] {
+ // f(); // break
+ // });
+ //
+ // If we have already found more than one lambda introducers on this level, we
+ // opt out of this because similarity between the lambdas is more important.
+ if (State.Stack.back().LambdasFound <= 1) {
+ for (unsigned i = 0; i != State.NextToken->MatchingParen->FakeRParens;
+ ++i) {
assert(State.Stack.size() > 1);
if (State.Stack.size() == 1) {
// Do not pop the last element.
break;
}
State.Stack.pop_back();
- State.Stack.back().VariablePos = VariablePos;
}
}
- if (Current.isStringLiteral() && State.StartOfStringLiteral == 0) {
- State.StartOfStringLiteral = State.Column;
- } else if (!Current.isOneOf(tok::comment, tok::identifier, tok::hash) &&
- !Current.isStringLiteral()) {
- State.StartOfStringLiteral = 0;
- }
-
- State.Column += Current.ColumnWidth;
- State.NextToken = State.NextToken->Next;
- unsigned Penalty = breakProtrudingToken(Current, State, DryRun);
- if (State.Column > getColumnLimit(State)) {
- unsigned ExcessCharacters = State.Column - getColumnLimit(State);
- Penalty += Style.PenaltyExcessCharacter * ExcessCharacters;
- }
-
- if (Current.Role)
- Current.Role->formatFromToken(State, this, DryRun);
- // If the previous has a special role, let it consume tokens as appropriate.
- // It is necessary to start at the previous token for the only implemented
- // role (comma separated list). That way, the decision whether or not to break
- // after the "{" is already done and both options are tried and evaluated.
- // FIXME: This is ugly, find a better way.
- if (Previous && Previous->Role)
- Penalty += Previous->Role->formatAfterToken(State, this, DryRun);
-
- return Penalty;
+ // For some reason, ObjC blocks are indented like continuations.
+ unsigned NewIndent = State.Stack.back().LastSpace +
+ (State.NextToken->Type == TT_ObjCBlockLBrace
+ ? Style.ContinuationIndentWidth
+ : Style.IndentWidth);
+ State.Stack.push_back(ParenState(
+ NewIndent, /*NewIndentLevel=*/State.Stack.back().IndentLevel + 1,
+ State.Stack.back().LastSpace, /*AvoidBinPacking=*/true,
+ State.Stack.back().NoLineBreak));
+ State.Stack.back().BreakBeforeParameter = true;
}
unsigned ContinuationIndenter::addMultilineToken(const FormatToken &Current,
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