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Added quickfix operation to split simple-declarations. E.g. int a, b; will be replaced with int a; int b;.

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This commit is contained in:
Roberto Raggi
2009-11-20 10:47:19 +01:00
parent 9a7729ebdc
commit 9903b0aedb
2 changed files with 149 additions and 28 deletions
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172
src/plugins/cppeditor/cppquickfix.cpp
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@@ -159,6 +159,117 @@ private:
BinaryExpressionAST *pattern;
};
class SplitSimpleDeclarationOp: public QuickFixOperation
{
public:
SplitSimpleDeclarationOp(Document::Ptr doc, const Snapshot &snapshot, CPPEditor *editor)
: QuickFixOperation(doc, snapshot), declaration(0), editor(editor)
{}
virtual QString description() const
{
return QLatin1String("Split declaration"); // ### tr?
}
bool checkDeclaration(SimpleDeclarationAST *declaration) const
{
if (! declaration->decl_specifier_list)
return false;
for (SpecifierListAST *it = declaration->decl_specifier_list; it; it = it->next) {
SpecifierAST *specifier = it->value;
if (specifier->asEnumSpecifier() != 0)
return false;
else if (specifier->asClassSpecifier() != 0)
return false;
}
if (! declaration->declarator_list)
return false;
else if (! declaration->declarator_list->next)
return false;
return true;
}
virtual int match(const QList<AST *> &path, QTextCursor tc)
{
setTextCursor(tc);
CoreDeclaratorAST *core_declarator = 0;
int index = path.size() - 1;
for (; index != -1; --index) {
AST *node = path.at(index);
if (CoreDeclaratorAST *coreDecl = node->asCoreDeclarator())
core_declarator = coreDecl;
else if (SimpleDeclarationAST *simpleDecl = node->asSimpleDeclaration()) {
if (checkDeclaration(simpleDecl)) {
declaration = simpleDecl;
const int cursorPosition = tc.selectionStart();
const int startOfDeclSpecifier = startOf(declaration->decl_specifier_list->firstToken());
const int endOfDeclSpecifier = endOf(declaration->decl_specifier_list->lastToken() - 1);
if (cursorPosition >= startOfDeclSpecifier && cursorPosition <= endOfDeclSpecifier)
return index; // the AST node under cursor is a specifier.
if (core_declarator) {
const int startOfCoreDeclarator = startOf(core_declarator);
const int endOfCoreDeclarator = endOf(core_declarator);
if (cursorPosition >= startOfCoreDeclarator && cursorPosition <= endOfCoreDeclarator)
return index; // got a core-declarator under the text cursor.
}
}
break;
}
}
return -1;
}
virtual void apply()
{
QTextCursor completeDeclaration = createCursor(declaration);
SpecifierListAST *specifiers = declaration->decl_specifier_list;
const QString declSpecifiers = textOf(startOf(specifiers->firstToken()), endOf(specifiers->lastToken() - 1));
DeclaratorAST *declarator = declaration->declarator_list->value;
replace(endOf(declarator), startOf(declaration->semicolon_token), QString());
QString text;
for (DeclaratorListAST *it = declaration->declarator_list->next; it; it = it->next) {
DeclaratorAST *declarator = it->value;
text += QLatin1Char('\n');
text += declSpecifiers;
text += QLatin1Char(' ');
text += textOf(declarator);
text += QLatin1String(";");
}
insert(endOf(declaration->semicolon_token), text);
completeDeclaration.beginEditBlock();
execute();
editor->indentInsertedText(completeDeclaration);
completeDeclaration.endEditBlock();
}
private:
SimpleDeclarationAST *declaration;
CPPEditor *editor;
};
class TakeDeclarationOp: public QuickFixOperation
{
public:
@@ -205,14 +316,7 @@ public:
virtual void apply()
{
QTextCursor completeIfStatement = selectNode(pattern);
{
// ### HACK
const int anchor = completeIfStatement.anchor();
const int position = completeIfStatement.position();
completeIfStatement.setPosition(position);
completeIfStatement.setPosition(anchor, QTextCursor::KeepAnchor);
}
QTextCursor completeIfStatement = createCursor(pattern);
QString name = selectNode(core).selectedText();
QString declaration = selectNode(condition).selectedText();
@@ -321,14 +425,7 @@ public:
void splitAndCondition()
{
QTextCursor completeIfStatement = selectNode(pattern);
{
// ### HACK
const int anchor = completeIfStatement.anchor();
const int position = completeIfStatement.position();
completeIfStatement.setPosition(position);
completeIfStatement.setPosition(anchor, QTextCursor::KeepAnchor);
}
QTextCursor completeIfStatement = createCursor(pattern);
StatementAST *ifTrueStatement = pattern->statement;
CompoundStatementAST *compoundStatement = ifTrueStatement->asCompoundStatement();
@@ -371,14 +468,7 @@ public:
void splitOrCondition()
{
QTextCursor completeIfStatement = selectNode(pattern);
{
// ### HACK
const int anchor = completeIfStatement.anchor();
const int position = completeIfStatement.position();
completeIfStatement.setPosition(position);
completeIfStatement.setPosition(anchor, QTextCursor::KeepAnchor);
}
QTextCursor completeIfStatement = createCursor(pattern);
StatementAST *ifTrueStatement = pattern->statement;
CompoundStatementAST *compoundStatement = ifTrueStatement->asCompoundStatement();
@@ -496,6 +586,17 @@ QTextCursor QuickFixOperation::selectNode(AST *ast) const
return tc;
}
QTextCursor QuickFixOperation::createCursor(AST *ast) const
{
QTextCursor cursor = selectNode(ast);
// ### HACK
const int anchor = cursor.anchor();
const int position = cursor.position();
cursor.setPosition(position);
cursor.setPosition(anchor, QTextCursor::KeepAnchor);
return cursor;
}
void QuickFixOperation::move(int start, int end, int to)
{
if (end > start)
@@ -533,6 +634,19 @@ void QuickFixOperation::insert(int at, const QString &text)
replace(at, at, text);
}
QString QuickFixOperation::textOf(int firstOffset, int lastOffset) const
{
QTextCursor tc = _textCursor;
tc.setPosition(firstOffset);
tc.setPosition(lastOffset, QTextCursor::KeepAnchor);
return tc.selectedText();
}
QString QuickFixOperation::textOf(AST *ast) const
{
return selectNode(ast).selectedText();
}
void QuickFixOperation::execute()
{
_textWriter.write(&_textCursor);
@@ -573,13 +687,15 @@ int CPPQuickFixCollector::startCompletion(TextEditor::ITextEditable *editable)
// ### build the list of the quick fix ops by scanning path.
QSharedPointer<RewriteLogicalAndOp> rewriteLogicalAndOp(new RewriteLogicalAndOp(info.doc, info.snapshot));
QSharedPointer<SplitIfStatementOp> splitIfStatement(new SplitIfStatementOp(info.doc, info.snapshot, _editor));
QSharedPointer<TakeDeclarationOp> takeDeclaration(new TakeDeclarationOp(info.doc, info.snapshot, _editor));
QSharedPointer<SplitIfStatementOp> splitIfStatementOp(new SplitIfStatementOp(info.doc, info.snapshot, _editor));
QSharedPointer<TakeDeclarationOp> takeDeclarationOp(new TakeDeclarationOp(info.doc, info.snapshot, _editor));
QSharedPointer<SplitSimpleDeclarationOp> splitSimpleDeclarationOp(new SplitSimpleDeclarationOp(info.doc, info.snapshot, _editor));
QList<QuickFixOperationPtr> candidates;
candidates.append(rewriteLogicalAndOp);
candidates.append(splitIfStatement);
candidates.append(takeDeclaration);
candidates.append(splitIfStatementOp);
candidates.append(takeDeclarationOp);
candidates.append(splitSimpleDeclarationOp);
QMultiMap<int, QuickFixOperationPtr> matchedOps;