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Highlight user defined types.

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This commit is contained in:
Roberto Raggi
2010-05-25 14:53:21 +02:00
parent 2a0f901e16
commit b68a16f1b5
9 changed files with 406 additions and 29 deletions
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334
src/libs/cplusplus/CheckUndefinedSymbols.cpp
View File

@@ -36,16 +36,211 @@
#include <TranslationUnit.h>
#include <Scope.h>
#include <AST.h>
#include <SymbolVisitor.h>
#include <QCoreApplication>
#include <QDebug>
using namespace CPlusPlus;
namespace {
class CollectTypes: protected SymbolVisitor
{
Document::Ptr _doc;
Snapshot _snapshot;
QSet<QByteArray> _types;
QList<ScopedSymbol *> _scopes;
QList<NameAST *> _names;
bool _mainDocument;
public:
CollectTypes(Document::Ptr doc, const Snapshot &snapshot)
: _doc(doc), _snapshot(snapshot), _mainDocument(false)
{
QSet<Namespace *> processed;
process(doc, &processed);
}
const QSet<QByteArray> &types() const
{
return _types;
}
const QList<ScopedSymbol *> &scopes() const
{
return _scopes;
}
static Scope *findScope(unsigned tokenOffset, const QList<ScopedSymbol *> &scopes)
{
for (int i = scopes.size() - 1; i != -1; --i) {
ScopedSymbol *symbol = scopes.at(i);
const unsigned start = symbol->startOffset();
const unsigned end = symbol->endOffset();
if (tokenOffset >= start && tokenOffset < end)
return symbol->members();
}
return 0;
}
protected:
void process(Document::Ptr doc, QSet<Namespace *> *processed)
{
if (! doc)
return;
else if (! processed->contains(doc->globalNamespace())) {
processed->insert(doc->globalNamespace());
foreach (const Document::Include &i, doc->includes())
process(_snapshot.document(i.fileName()), processed);
_mainDocument = (doc == _doc); // ### improve
accept(doc->globalNamespace());
}
}
void addType(const Identifier *id)
{
if (id)
_types.insert(QByteArray::fromRawData(id->chars(), id->size()));
}
void addType(const Name *name)
{
if (! name) {
return;
} else if (const QualifiedNameId *q = name->asQualifiedNameId()) {
for (unsigned i = 0; i < q->nameCount(); ++i)
addType(q->nameAt(i));
} else if (name->isNameId() || name->isTemplateNameId()) {
addType(name->identifier());
}
}
void addScope(ScopedSymbol *symbol)
{
if (_mainDocument)
_scopes.append(symbol);
}
// nothing to do
virtual bool visit(UsingNamespaceDirective *) { return true; }
virtual bool visit(UsingDeclaration *) { return true; }
virtual bool visit(Argument *) { return true; }
virtual bool visit(BaseClass *) { return true; }
virtual bool visit(Function *symbol)
{
addScope(symbol);
return true;
}
virtual bool visit(Block *symbol)
{
addScope(symbol);
return true;
}
virtual bool visit(NamespaceAlias *symbol)
{
addType(symbol->name());
return true;
}
virtual bool visit(Declaration *symbol)
{
if (symbol->isTypedef())
addType(symbol->name());
return true;
}
virtual bool visit(TypenameArgument *symbol)
{
addType(symbol->name());
return true;
}
virtual bool visit(Enum *symbol)
{
addScope(symbol);
addType(symbol->name());
return true;
}
virtual bool visit(Namespace *symbol)
{
addScope(symbol);
addType(symbol->name());
return true;
}
virtual bool visit(Class *symbol)
{
addScope(symbol);
addType(symbol->name());
return true;
}
virtual bool visit(ForwardClassDeclaration *symbol)
{
addType(symbol->name());
return true;
}
// Objective-C
virtual bool visit(ObjCBaseClass *) { return true; }
virtual bool visit(ObjCBaseProtocol *) { return true; }
virtual bool visit(ObjCPropertyDeclaration *) { return true; }
virtual bool visit(ObjCMethod *symbol)
{
addScope(symbol);
return true;
}
virtual bool visit(ObjCClass *symbol)
{
addScope(symbol);
addType(symbol->name());
return true;
}
virtual bool visit(ObjCForwardClassDeclaration *symbol)
{
addType(symbol->name());
return true;
}
virtual bool visit(ObjCProtocol *symbol)
{
addScope(symbol);
addType(symbol->name());
return true;
}
virtual bool visit(ObjCForwardProtocolDeclaration *symbol)
{
addType(symbol->name());
return true;
}
};
} // end of anonymous namespace
CheckUndefinedSymbols::CheckUndefinedSymbols(TranslationUnit *unit, const LookupContext &context)
: ASTVisitor(unit), _context(context)
{
_fileName = context.thisDocument()->fileName();
CollectTypes collectTypes(context.thisDocument(), context.snapshot());
_potentialTypes = collectTypes.types();
_scopes = collectTypes.scopes();
}
CheckUndefinedSymbols::~CheckUndefinedSymbols()
@@ -84,17 +279,19 @@ bool CheckUndefinedSymbols::visit(UsingDirectiveAST *ast)
return false;
}
bool CheckUndefinedSymbols::visit(SimpleDeclarationAST *ast)
bool CheckUndefinedSymbols::visit(SimpleDeclarationAST *)
{
return true;
}
bool CheckUndefinedSymbols::visit(NamedTypeSpecifierAST *ast)
{
#if 0
if (ast->name) {
unsigned line, column;
getTokenStartPosition(ast->firstToken(), &line, &column);
getTokenStartPosition(ast->name->firstToken(), &line, &column);
// ### use the potential types.
Scope *enclosingScope = _context.thisDocument()->scopeAt(line, column);
const QList<Symbol *> candidates = _context.lookup(ast->name->name, enclosingScope);
@@ -108,8 +305,9 @@ bool CheckUndefinedSymbols::visit(NamedTypeSpecifierAST *ast)
if (! ty)
warning(ast->name, QCoreApplication::translate("CheckUndefinedSymbols", "Expected a type-name"));
}
#endif
return false;
return true;
}
void CheckUndefinedSymbols::checkNamespace(NameAST *name)
@@ -131,3 +329,133 @@ void CheckUndefinedSymbols::checkNamespace(NameAST *name)
const unsigned length = tokenAt(name->lastToken() - 1).end() - tokenAt(name->firstToken()).begin();
warning(line, column, QCoreApplication::translate("CheckUndefinedSymbols", "Expected a namespace-name"), length);
}
bool CheckUndefinedSymbols::visit(SimpleNameAST *ast)
{
if (ast->name) {
const QByteArray id = QByteArray::fromRawData(ast->name->identifier()->chars(), // ### move
ast->name->identifier()->size());
if (_potentialTypes.contains(id)) {
const unsigned tokenOffset = tokenAt(ast->firstToken()).offset;
Scope *scope = CollectTypes::findScope(tokenOffset, _scopes); // ### move
if (! scope)
scope = _context.thisDocument()->globalSymbols();
const QList<Symbol *> candidates = _context.lookup(ast->name, scope);
addTypeUsage(candidates, ast);
}
}
return true;
}
bool CheckUndefinedSymbols::visit(TemplateIdAST *ast)
{
if (ast->name) {
const QByteArray id = QByteArray::fromRawData(ast->name->identifier()->chars(), // ### move
ast->name->identifier()->size());
if (_potentialTypes.contains(id)) {
Scope *scope = CollectTypes::findScope(tokenAt(ast->firstToken()).offset, _scopes); // ### move
if (! scope)
scope = _context.thisDocument()->globalSymbols();
ClassOrNamespace *b = _context.lookupType(ast->name, scope);
addTypeUsage(b, ast);
}
}
return true;
}
bool CheckUndefinedSymbols::visit(DestructorNameAST *ast)
{
if (ast->name) {
const QByteArray id = QByteArray::fromRawData(ast->name->identifier()->chars(), // ### move
ast->name->identifier()->size());
if (_potentialTypes.contains(id)) {
Scope *scope = CollectTypes::findScope(tokenAt(ast->firstToken()).offset, _scopes); // ### move
if (! scope)
scope = _context.thisDocument()->globalSymbols();
ClassOrNamespace *b = _context.lookupType(ast->name, scope);
addTypeUsage(b, ast);
}
}
return true;
}
bool CheckUndefinedSymbols::visit(QualifiedNameAST *ast)
{
if (ast->name) {
Scope *scope = CollectTypes::findScope(tokenAt(ast->firstToken()).offset, _scopes); // ### move
if (! scope)
scope = _context.thisDocument()->globalSymbols();
ClassOrNamespace *b = 0;
if (NestedNameSpecifierListAST *it = ast->nested_name_specifier_list) {
NestedNameSpecifierAST *nested_name_specifier = it->value;
NameAST *class_or_namespace_name = nested_name_specifier->class_or_namespace_name; // ### remove shadowing
const Name *name = class_or_namespace_name->name;
b = _context.lookupType(name, scope);
addTypeUsage(b, class_or_namespace_name);
for (it = it->next; b && it; it = it->next) {
NestedNameSpecifierAST *nested_name_specifier = it->value;
if (NameAST *class_or_namespace_name = nested_name_specifier->class_or_namespace_name) {
b = b->findType(class_or_namespace_name->name);
addTypeUsage(b, class_or_namespace_name);
}
}
}
if (b && ast->unqualified_name)
addTypeUsage(b->find(ast->unqualified_name->name), ast->unqualified_name);
}
return false;
}
void CheckUndefinedSymbols::addTypeUsage(ClassOrNamespace *b, NameAST *ast)
{
if (! b)
return;
const Token &tok = tokenAt(ast->firstToken());
if (tok.generated())
return;
unsigned line, column;
getTokenStartPosition(ast->firstToken(), &line, &column);
const unsigned length = tok.length();
Use use(line, column, length);
_typeUsages.append(use);
//qDebug() << "added use" << oo(ast->name) << line << column << length;
}
void CheckUndefinedSymbols::addTypeUsage(const QList<Symbol *> &candidates, NameAST *ast)
{
const Token &tok = tokenAt(ast->firstToken());
if (tok.generated())
return;
unsigned line, column;
getTokenStartPosition(ast->firstToken(), &line, &column);
const unsigned length = tok.length();
foreach (Symbol *c, candidates) {
if (c->isTypedef() || c->isClass() || c->isEnum() || c->isForwardClassDeclaration() || c->isTypenameArgument()) {
Use use(line, column, length);
_typeUsages.append(use);
//qDebug() << "added use" << oo(ast->name) << line << column << length;
break;
}
}
}
QList<CheckUndefinedSymbols::Use> CheckUndefinedSymbols::typeUsages() const
{
return _typeUsages;
}

22
src/libs/cplusplus/CheckUndefinedSymbols.h
View File

@@ -33,6 +33,7 @@
#include "CppDocument.h"
#include "LookupContext.h"
#include <ASTVisitor.h>
#include <QtCore/QSet>
namespace CPlusPlus {
@@ -44,6 +45,17 @@ public:
QList<Document::DiagnosticMessage> operator()(AST *ast);
struct Use { // ### remove me
unsigned line;
unsigned column;
unsigned length;
Use(unsigned line = 0, unsigned column = 0, unsigned length = 0)
: line(line), column(column), length(length) {}
};
QList<Use> typeUsages() const;
protected:
using ASTVisitor::visit;
@@ -51,15 +63,25 @@ protected:
bool warning(AST *ast, const QString &text);
void checkNamespace(NameAST *name);
void addTypeUsage(ClassOrNamespace *b, NameAST *ast);
void addTypeUsage(const QList<Symbol *> &candidates, NameAST *ast);
virtual bool visit(UsingDirectiveAST *);
virtual bool visit(SimpleDeclarationAST *);
virtual bool visit(NamedTypeSpecifierAST *);
virtual bool visit(SimpleNameAST *ast);
virtual bool visit(DestructorNameAST *ast);
virtual bool visit(QualifiedNameAST *ast);
virtual bool visit(TemplateIdAST *ast);
private:
LookupContext _context;
QString _fileName;
QList<Document::DiagnosticMessage> _diagnosticMessages;
QSet<QByteArray> _potentialTypes;
QList<ScopedSymbol *> _scopes;
QList<Use> _typeUsages;
};
} // end of namespace CPlusPlus

6
src/libs/cplusplus/FindUsages.cpp
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@@ -128,12 +128,14 @@ void FindUsages::reportResult(unsigned tokenIndex, const QList<Symbol *> &candid
void FindUsages::reportResult(unsigned tokenIndex)
{
if (_processed.contains(tokenIndex))
const Token &tk = tokenAt(tokenIndex);
if (tk.generated())
return;
else if (_processed.contains(tokenIndex))
return;
_processed.insert(tokenIndex);
const Token &tk = tokenAt(tokenIndex);
const QString lineText = matchingLine(tk);
unsigned line, col;

7
src/libs/cplusplus/pp-engine.cpp
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@@ -779,14 +779,11 @@ void Preprocessor::preprocess(const QString &fileName, const QByteArray &source,
if (! env->isBuiltinMacro(spell)) {
Macro *m = env->resolve(spell);
if (m && ! m->isFunctionLike()) {
QByteArray expandedDefinition;
expandObjectLikeMacro(identifierToken, spell, m, &expandedDefinition);
if (expandedDefinition.trimmed().isEmpty()) {
out(QByteArray(spell.length(), ' '));
// expand object-like macros.
processObjectLikeMacro(identifierToken, spell, m);
continue;
}
}
}
out(spell);
continue;
}

36
src/plugins/cppeditor/cppeditor.cpp
View File

@@ -265,6 +265,10 @@ protected:
bool findMemberForToken(unsigned tokenIdx, NameAST *ast)
{
const Token &tok = tokenAt(tokenIdx);
if (tok.generated())
return false;
unsigned line, column;
getTokenStartPosition(tokenIdx, &line, &column);
@@ -303,6 +307,10 @@ protected:
for (TemplateArgumentListAST *arg = ast->template_argument_list; arg; arg = arg->next)
accept(arg->value);
const Token &tok = tokenAt(ast->identifier_token);
if (tok.generated())
return false;
unsigned line, column;
getTokenStartPosition(ast->firstToken(), &line, &column);
@@ -1781,6 +1789,7 @@ void CPPEditor::setFontSettings(const TextEditor::FontSettings &fs)
m_occurrencesUnusedFormat.clearForeground();
m_occurrencesUnusedFormat.setToolTip(tr("Unused variable"));
m_occurrenceRenameFormat = fs.toTextCharFormat(QLatin1String(TextEditor::Constants::C_OCCURRENCES_RENAME));
m_typeFormat = fs.toTextCharFormat(QLatin1String(TextEditor::Constants::C_TYPE));
// only set the background, we do not want to modify foreground properties set by the syntax highlighter or the link
m_occurrencesFormat.clearForeground();
@@ -1889,6 +1898,21 @@ void CPPEditor::updateSemanticInfo(const SemanticInfo &semanticInfo)
}
setExtraSelections(UndefinedSymbolSelection, undefinedSymbolSelections);
QList<QTextEdit::ExtraSelection> typeSelections;
foreach (const SemanticInfo::Use &use, semanticInfo.typeUsages) {
QTextCursor cursor(document());
cursor.setPosition(document()->findBlockByNumber(use.line - 1).position() + use.column - 1);
cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, use.length);
QTextEdit::ExtraSelection sel;
sel.cursor = cursor;
sel.format = m_typeFormat;
typeSelections.append(sel);
}
setExtraSelections(TypeSelection, typeSelections);
}
setExtraSelections(UnusedSymbolSelection, unusedSelections);
@@ -1987,12 +2011,14 @@ SemanticInfo SemanticHighlighter::semanticInfo(const Source &source)
Snapshot snapshot;
Document::Ptr doc;
QList<Document::DiagnosticMessage> diagnosticMessages;
QList<SemanticInfo::Use> typeUsages;
if (! source.force && revision == source.revision) {
m_mutex.lock();
snapshot = m_lastSemanticInfo.snapshot; // ### TODO: use the new snapshot.
doc = m_lastSemanticInfo.doc;
diagnosticMessages = m_lastSemanticInfo.diagnosticMessages;
typeUsages = m_lastSemanticInfo.typeUsages;
m_mutex.unlock();
}
@@ -2003,17 +2029,14 @@ SemanticInfo SemanticHighlighter::semanticInfo(const Source &source)
doc = snapshot.documentFromSource(preprocessedCode, source.fileName);
doc->check();
Document::Ptr documentInSnapshot = snapshot.document(source.fileName);
if (! documentInSnapshot) {
// use the newly parsed document.
documentInSnapshot = doc;
}
LookupContext context(doc, snapshot);
if (TranslationUnit *unit = doc->translationUnit()) {
CheckUndefinedSymbols checkUndefinedSymbols(unit, context);
diagnosticMessages = checkUndefinedSymbols(unit->ast());
typeUsages.clear();
foreach (const CheckUndefinedSymbols::Use &use, checkUndefinedSymbols.typeUsages()) // ### remove me
typeUsages.append(SemanticInfo::Use(use.line, use.column, use.length));
}
}
@@ -2035,6 +2058,7 @@ SemanticInfo SemanticHighlighter::semanticInfo(const Source &source)
semanticInfo.hasD = useTable.hasD;
semanticInfo.forced = source.force;
semanticInfo.diagnosticMessages = diagnosticMessages;
semanticInfo.typeUsages = typeUsages;
return semanticInfo;
}

4
src/plugins/cppeditor/cppeditor.h
View File

@@ -88,7 +88,8 @@ public:
bool forced: 1;
CPlusPlus::Snapshot snapshot;
CPlusPlus::Document::Ptr doc;
LocalUseMap localUses;
LocalUseMap localUses; // ### rename
QList<Use> typeUsages;
QList<CPlusPlus::Document::DiagnosticMessage> diagnosticMessages;
};
@@ -299,6 +300,7 @@ private:
QTextCharFormat m_occurrencesFormat;
QTextCharFormat m_occurrencesUnusedFormat;
QTextCharFormat m_occurrenceRenameFormat;
QTextCharFormat m_typeFormat;
QList<QTextEdit::ExtraSelection> m_renameSelections;
int m_currentRenameSelection;

13
src/plugins/cppeditor/cpphighlighter.cpp
View File

@@ -360,11 +360,14 @@ void CppHighlighter::highlightWord(QStringRef word, int position, int length)
{
// try to highlight Qt 'identifiers' like QObject and Q_PROPERTY
// but don't highlight words like 'Query'
if (word.length() > 1
&& word.at(0) == QLatin1Char('Q')
&& (word.at(1).isUpper()
|| word.at(1) == QLatin1Char('_')
|| word.at(1) == QLatin1Char('t'))) {
if (word.length() > 1 && word.at(0) == QLatin1Char('Q')) {
for (int i = 1; i < word.length(); ++i) {
const QChar &ch = word.at(i);
if (! (ch.isUpper() || ch == QLatin1Char('_')))
return;
}
setFormat(position, length, m_formats[CppTypeFormat]);
}
}

1
src/plugins/texteditor/basetexteditor.h
View File

@@ -340,6 +340,7 @@ public:
FakeVimSelection,
OtherSelection,
SnippetPlaceholderSelection,
TypeSelection,
NExtraSelectionKinds
};
void setExtraSelections(ExtraSelectionKind kind, const QList<QTextEdit::ExtraSelection> &selections);

6
src/shared/cplusplus/CheckStatement.cpp
View File

@@ -153,12 +153,10 @@ bool CheckStatement::visit(ExpressionOrDeclarationStatementAST *ast)
{
// translationUnit()->warning(ast->firstToken(),
// "ambiguous expression or declaration statement");
if (ast->declaration) {
semantic()->check(ast->declaration, _scope);
_exprType = FullySpecifiedType();
} else {
_exprType = semantic()->check(ast->expression, _scope);
}
return false;
}