Commit 809611f3 authored by Francois Ferrand's avatar Francois Ferrand Committed by Leandro Melo
Browse files

CppHighlighter: highlight all functions/methods.



- Highlight all function/methods (not just virtual methods).
- Highlight as a function even if number of arguments does not match. In
  that case, add a diagnostic message to indicate there are too many/too
  few arguments.
- Fix highlighting of parameters in function declarations.
  These used to be handled indiferently, and they could be mistaken for
  type or field references.
- Properly highlight template method calls.

Change-Id: I6e61c9ee47763db95c62314f9cc1c4d398df38b3
Reviewed-by: default avatarLeandro Melo <leandro.melo@nokia.com>
parent 16bca8b0
......@@ -14,6 +14,7 @@
<style name="Doxygen.Comment" foreground="#55ffff"/>
<style name="Doxygen.Tag" foreground="#00a0a0"/>
<style name="Field"/>
<style name="Function"/>
<style name="Keyword" foreground="#ffff55"/>
<style name="Label" foreground="#ffff55"/>
<style name="LineNumber" foreground="#888888" background="#232323"/>
......
......@@ -8,6 +8,7 @@
<style name="Doxygen.Comment" foreground="#808080"/>
<style name="Doxygen.Tag" foreground="#808080" italic="true"/>
<style name="Field"/>
<style name="Function"/>
<style name="Keyword" bold="true"/>
<style name="Label"/>
<style name="LineNumber" foreground="#c7c4c1" background="#efebe7"/>
......
......@@ -19,6 +19,7 @@
<style name="Doxygen.Comment" foreground="#737dd5"/>
<style name="Doxygen.Tag" foreground="#4e5ab3"/>
<style name="Field" bold="true"/>
<style name="Function"/>
<style name="Keyword" foreground="#808bed"/>
<style name="Label" foreground="#e76000"/>
<style name="LineNumber" foreground="#8b8bcd" background="#2e2e2e"/>
......
......@@ -8,6 +8,7 @@
<style name="Doxygen.Comment" foreground="#808080" italic="true"/>
<style name="Doxygen.Tag" foreground="#808080" bold="true" italic="true"/>
<style name="Field" foreground="#660e7a" bold="true"/>
<style name="Function" foreground="#000000"/>
<style name="Keyword" foreground="#000080" bold="true"/>
<style name="Label" foreground="#800000" bold="true"/>
<style name="Local" foreground="#000000"/>
......
......@@ -192,6 +192,9 @@ public:
void addDiagnosticMessage(const DiagnosticMessage &d)
{ _diagnosticMessages.append(d); }
void clearDiagnosticMessages()
{ _diagnosticMessages.clear(); }
QList<DiagnosticMessage> diagnosticMessages() const
{ return _diagnosticMessages; }
......
......@@ -1047,6 +1047,11 @@ void CPPEditorWidget::finishHighlightSymbolUsages()
TextEditor::SemanticHighlighter::clearExtraAdditionalFormatsUntilEnd(
highlighter, m_highlighter);
if (m_modelManager)
m_modelManager->setExtraDiagnostics(m_lastSemanticInfo.doc->fileName(),
CPlusPlus::CppModelManagerInterface::CppSemanticsDiagnostic,
m_lastSemanticInfo.doc->diagnosticMessages());
}
......@@ -1744,6 +1749,8 @@ void CPPEditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
fs.toTextCharFormat(TextEditor::C_LABEL);
m_semanticHighlightFormatMap[SemanticInfo::MacroUse] =
fs.toTextCharFormat(TextEditor::C_PREPROCESSOR);
m_semanticHighlightFormatMap[SemanticInfo::FunctionUse] =
fs.toTextCharFormat(TextEditor::C_FUNCTION);
m_keywordFormat = fs.toTextCharFormat(TextEditor::C_KEYWORD);
// only set the background, we do not want to modify foreground properties set by the syntax highlighter or the link
......
......@@ -179,7 +179,8 @@ public:
enum ExtraDiagnosticKind
{
AllExtraDiagnostics = -1,
ExportedQmlTypesDiagnostic
ExportedQmlTypesDiagnostic,
CppSemanticsDiagnostic
};
public:
......
......@@ -68,7 +68,7 @@ class CollectSymbols: protected SymbolVisitor
Snapshot _snapshot;
QSet<QByteArray> _types;
QSet<QByteArray> _members;
QSet<QByteArray> _virtualMethods;
QSet<QByteArray> _functions;
QSet<QByteArray> _statics;
bool _mainDocument;
......@@ -90,9 +90,9 @@ public:
return _members;
}
const QSet<QByteArray> &virtualMethods() const
const QSet<QByteArray> &functions() const
{
return _virtualMethods;
return _functions;
}
const QSet<QByteArray> &statics() const
......@@ -149,15 +149,14 @@ protected:
}
}
void addVirtualMethod(const Name *name)
void addFunction(const Name *name)
{
if (! name) {
return;
} else if (name->isNameId()) {
const Identifier *id = name->identifier();
_virtualMethods.insert(QByteArray::fromRawData(id->chars(), id->size()));
_functions.insert(QByteArray::fromRawData(id->chars(), id->size()));
}
}
......@@ -181,9 +180,7 @@ protected:
virtual bool visit(Function *symbol)
{
if (symbol->isVirtual())
addVirtualMethod(symbol->name());
addFunction(symbol->name());
return true;
}
......@@ -203,10 +200,8 @@ protected:
if (symbol->enclosingEnum() != 0)
addStatic(symbol->name());
if (Function *funTy = symbol->type()->asFunctionType()) {
if (funTy->isVirtual())
addVirtualMethod(symbol->name());
}
if (symbol->type()->isFunctionType())
addFunction(symbol->name());
if (symbol->isTypedef())
addType(symbol->name());
......@@ -305,7 +300,7 @@ CheckSymbols::CheckSymbols(Document::Ptr doc, const LookupContext &context, cons
_fileName = doc->fileName();
_potentialTypes = collectTypes.types();
_potentialMembers = collectTypes.members();
_potentialVirtualMethods = collectTypes.virtualMethods();
_potentialFunctions = collectTypes.functions();
_potentialStatics = collectTypes.statics();
typeOfExpression.init(_doc, _context.snapshot(), _context.bindings());
......@@ -317,7 +312,7 @@ CheckSymbols::~CheckSymbols()
void CheckSymbols::run()
{
qSort(_macroUses.begin(), _macroUses.end(), sortByLinePredicate);
_diagnosticMessages.clear();
_doc->clearDiagnosticMessages();
if (! isCanceled()) {
if (_doc->translationUnit()) {
......@@ -333,7 +328,7 @@ void CheckSymbols::run()
bool CheckSymbols::warning(unsigned line, unsigned column, const QString &text, unsigned length)
{
Document::DiagnosticMessage m(Document::DiagnosticMessage::Warning, _fileName, line, column, text, length);
_diagnosticMessages.append(m);
_doc->addDiagnosticMessage(m);
return false;
}
......@@ -482,8 +477,8 @@ bool CheckSymbols::visit(SimpleDeclarationAST *ast)
if (Function *funTy = decl->type()->asFunctionType()) {
if (funTy->isVirtual()) {
addUse(declId, SemanticInfo::VirtualMethodUse);
} else if (maybeVirtualMethod(decl->name())) {
addVirtualMethod(_context.lookup(decl->name(), decl->enclosingScope()), declId, funTy->argumentCount());
} else {
addFunction(_context.lookup(decl->name(), decl->enclosingScope()), declId, funTy->argumentCount());
}
}
}
......@@ -542,7 +537,7 @@ bool CheckSymbols::visit(CallAST *ast)
if (MemberAccessAST *access = ast->base_expression->asMemberAccess()) {
if (access->member_name && access->member_name->name) {
if (maybeVirtualMethod(access->member_name->name)) {
if (maybeFunction(access->member_name->name)) {
const QByteArray expression = textOf(access);
const QList<LookupItem> candidates =
......@@ -553,12 +548,12 @@ bool CheckSymbols::visit(CallAST *ast)
if (QualifiedNameAST *q = memberName->asQualifiedName())
memberName = q->unqualified_name;
addVirtualMethod(candidates, memberName, argumentCount);
addFunction(candidates, memberName, argumentCount);
}
}
} else if (IdExpressionAST *idExpr = ast->base_expression->asIdExpression()) {
if (const Name *name = idExpr->name->name) {
if (maybeVirtualMethod(name)) {
if (maybeFunction(name)) {
NameAST *exprName = idExpr->name;
if (QualifiedNameAST *q = exprName->asQualifiedName())
exprName = q->unqualified_name;
......@@ -566,7 +561,7 @@ bool CheckSymbols::visit(CallAST *ast)
const QList<LookupItem> candidates =
typeOfExpression(textOf(idExpr), enclosingScope(),
TypeOfExpression::Preprocess);
addVirtualMethod(candidates, exprName, argumentCount);
addFunction(candidates, exprName, argumentCount);
}
}
}
......@@ -658,6 +653,8 @@ void CheckSymbols::checkName(NameAST *ast, Scope *scope)
Class *klass = scope->asClass();
if (hasVirtualDestructor(_context.lookupType(klass)))
addUse(ast, SemanticInfo::VirtualMethodUse);
else
addUse(ast, SemanticInfo::FunctionUse);
} else if (maybeType(ast->name) || maybeStatic(ast->name)) {
const QList<LookupItem> candidates = _context.lookup(ast->name, scope);
addTypeOrStatic(candidates, ast);
......@@ -686,6 +683,14 @@ bool CheckSymbols::visit(DestructorNameAST *ast)
return true;
}
bool CheckSymbols::visit(ParameterDeclarationAST *ast)
{
accept(ast->type_specifier_list);
// Skip parameter name, it does not need to be colored
accept(ast->expression);
return false;
}
bool CheckSymbols::visit(QualifiedNameAST *ast)
{
if (ast->name) {
......@@ -729,6 +734,8 @@ bool CheckSymbols::visit(QualifiedNameAST *ast)
if (ast->unqualified_name->asDestructorName() != 0) {
if (hasVirtualDestructor(binding))
addUse(ast->unqualified_name, SemanticInfo::VirtualMethodUse);
else
addUse(ast->unqualified_name, SemanticInfo::FunctionUse);
} else {
addTypeOrStatic(binding->find(ast->unqualified_name->name), ast->unqualified_name);
}
......@@ -807,8 +814,8 @@ bool CheckSymbols::visit(FunctionDefinitionAST *ast)
if (fun->isVirtual()) {
addUse(declId, SemanticInfo::VirtualMethodUse);
} else if (maybeVirtualMethod(fun->name())) {
addVirtualMethod(_context.lookup(fun->name(), fun->enclosingScope()), declId, fun->argumentCount());
} else {
addFunction(_context.lookup(fun->name(), fun->enclosingScope()), declId, fun->argumentCount());
}
}
}
......@@ -1022,7 +1029,7 @@ void CheckSymbols::addStatic(const QList<LookupItem> &candidates, NameAST *ast)
}
}
void CheckSymbols::addVirtualMethod(const QList<LookupItem> &candidates, NameAST *ast, unsigned argumentCount)
void CheckSymbols::addFunction(const QList<LookupItem> &candidates, NameAST *ast, unsigned argumentCount)
{
unsigned startToken = ast->firstToken();
if (DestructorNameAST *dtor = ast->asDestructorName())
......@@ -1033,30 +1040,57 @@ void CheckSymbols::addVirtualMethod(const QList<LookupItem> &candidates, NameAST
if (tok.generated())
return;
enum { Match_None, Match_TooManyArgs, Match_TooFewArgs, Match_Ok } matchType = Match_None;
SemanticInfo::UseKind kind = SemanticInfo::FunctionUse;
foreach (const LookupItem &r, candidates) {
Symbol *c = r.declaration();
if (! c)
continue;
Function *funTy = r.type()->asFunctionType();
Function *funTy = c->type()->asFunctionType();
if (! funTy) {
//Try to find a template function
if (Template * t = r.type()->asTemplateType())
if ((c = t->declaration()))
funTy = c->type()->asFunctionType();
}
if (! funTy)
continue;
if (! funTy->isVirtual())
continue;
else if (argumentCount < funTy->minimumArgumentCount())
continue;
else if (argumentCount > funTy->argumentCount()) {
if (! funTy->isVariadic())
continue;
continue; // TODO: add diagnostic messages and color call-operators calls too?
if (argumentCount < funTy->minimumArgumentCount()) {
if (matchType != Match_Ok) {
kind = funTy->isVirtual() ? SemanticInfo::VirtualMethodUse : SemanticInfo::FunctionUse;
matchType = Match_TooFewArgs;
}
} else if (argumentCount > funTy->argumentCount() && ! funTy->isVariadic()) {
if (matchType != Match_Ok) {
matchType = Match_TooManyArgs;
kind = funTy->isVirtual() ? SemanticInfo::VirtualMethodUse : SemanticInfo::FunctionUse;
}
} else if (!funTy->isVirtual()) {
matchType = Match_Ok;
kind = SemanticInfo::FunctionUse;
//continue, to check if there is a matching candidate which is virtual
} else {
matchType = Match_Ok;
kind = SemanticInfo::VirtualMethodUse;
break;
}
}
if (matchType != Match_None) {
unsigned line, column;
getTokenStartPosition(startToken, &line, &column);
const unsigned length = tok.length();
const Use use(line, column, length, SemanticInfo::VirtualMethodUse);
// Add a diagnostic message if argument count does not match
if (matchType == Match_TooFewArgs)
warning(line, column, "Too few arguments", length);
else if (matchType == Match_TooManyArgs)
warning(line, column, "Too many arguments", length);
const Use use(line, column, length, kind);
addUse(use);
break;
}
}
......@@ -1112,12 +1146,12 @@ bool CheckSymbols::maybeStatic(const Name *name) const
return false;
}
bool CheckSymbols::maybeVirtualMethod(const Name *name) const
bool CheckSymbols::maybeFunction(const Name *name) const
{
if (name) {
if (const Identifier *ident = name->identifier()) {
const QByteArray id = QByteArray::fromRawData(ident->chars(), ident->size());
if (_potentialVirtualMethods.contains(id))
if (_potentialFunctions.contains(id))
return true;
}
}
......
......@@ -107,7 +107,7 @@ protected:
bool maybeType(const Name *name) const;
bool maybeMember(const Name *name) const;
bool maybeStatic(const Name *name) const;
bool maybeVirtualMethod(const Name *name) const;
bool maybeFunction(const Name *name) const;
void checkName(NameAST *ast, Scope *scope = 0);
void checkNamespace(NameAST *name);
......@@ -121,7 +121,7 @@ protected:
void addTypeOrStatic(const QList<LookupItem> &candidates, NameAST *ast);
void addStatic(const QList<LookupItem> &candidates, NameAST *ast);
void addClassMember(const QList<LookupItem> &candidates, NameAST *ast);
void addVirtualMethod(const QList<LookupItem> &candidates, NameAST *ast, unsigned argumentCount);
void addFunction(const QList<LookupItem> &candidates, NameAST *ast, unsigned argumentCount);
bool isTemplateClass(Symbol *s) const;
......@@ -142,6 +142,7 @@ protected:
virtual bool visit(SimpleNameAST *ast);
virtual bool visit(DestructorNameAST *ast);
virtual bool visit(ParameterDeclarationAST *ast);
virtual bool visit(QualifiedNameAST *ast);
virtual bool visit(TemplateIdAST *ast);
......@@ -166,10 +167,9 @@ private:
LookupContext _context;
TypeOfExpression typeOfExpression;
QString _fileName;
QList<Document::DiagnosticMessage> _diagnosticMessages;
QSet<QByteArray> _potentialTypes;
QSet<QByteArray> _potentialMembers;
QSet<QByteArray> _potentialVirtualMethods;
QSet<QByteArray> _potentialFunctions;
QSet<QByteArray> _potentialStatics;
QList<AST *> _astStack;
QVector<Use> _usages;
......
......@@ -1154,13 +1154,19 @@ void CppModelManager::updateEditor(Document::Ptr doc)
QTextCursor c(ed->document()->findBlockByNumber(m.line() - 1));
const QString text = c.block().text();
for (int i = 0; i < text.size(); ++i) {
if (! text.at(i).isSpace()) {
c.setPosition(c.position() + i);
break;
if (m.length() > 0 && m.column() + m.length() < (unsigned)text.size()) {
int column = m.column() > 0 ? m.column() - 1 : 0;
c.setPosition(c.position() + column);
c.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, m.length());
} else {
for (int i = 0; i < text.size(); ++i) {
if (! text.at(i).isSpace()) {
c.setPosition(c.position() + i);
break;
}
}
c.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
}
c.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
sel.cursor = c;
sel.format.setToolTip(m.text());
e.selections.append(sel);
......
......@@ -53,7 +53,8 @@ public:
StaticUse,
VirtualMethodUse,
LabelUse,
MacroUse
MacroUse,
FunctionUse
};
typedef TextEditor::SemanticHighlighter::Result Use;
......
......@@ -61,6 +61,7 @@ const char *nameForStyle(TextStyle style)
case C_FIELD: return "Field";
case C_STATIC: return "Static";
case C_VIRTUAL_METHOD: return "VirtualMethod";
case C_FUNCTION: return "Function";
case C_KEYWORD: return "Keyword";
case C_OPERATOR: return "Operator";
case C_PREPROCESSOR: return "Preprocessor";
......
......@@ -60,6 +60,7 @@ enum TextStyle {
C_FIELD,
C_STATIC,
C_VIRTUAL_METHOD,
C_FUNCTION,
C_KEYWORD,
C_OPERATOR,
C_PREPROCESSOR,
......
......@@ -145,6 +145,7 @@ TextEditorSettings::TextEditorSettings(QObject *parent)
formatDescriptions.append(FormatDescription(C_FIELD, tr("Field"), Qt::darkRed));
formatDescriptions.append(FormatDescription(C_STATIC, tr("Static"), Qt::darkMagenta));
formatDescriptions.append(FormatDescription(C_FUNCTION, tr("Function")));
FormatDescription virtualMethodFormatDescriptor(C_VIRTUAL_METHOD, tr("Virtual Method"));
virtualMethodFormatDescriptor.format().setItalic(true);
formatDescriptions.append(virtualMethodFormatDescriptor);
......
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