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Completion: improve complete in the middle

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Apply clang fix to the old code model
Do not replace the text after cursor if
the proposal does not contain it or
if proposal matches 100% the text after it

Task-number: QTCREATORBUG-18471
Change-Id: I662cb6e48a9e0ee14065594f5c823f114fff2474
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
This commit is contained in:
Ivan Donchevskii
2017-06-28 09:51:53 +02:00
parent 19c9194b11
commit 287ae7ae61
3 changed files with 35 additions and 22 deletions
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11
src/plugins/clangcodemodel/clangassistproposalitem.cpp
View File

@@ -76,6 +76,7 @@ void ClangAssistProposalItem::apply(TextEditor::TextDocumentManipulatorInterface
int extraLength = 0;
int cursorOffset = 0;
bool setAutoCompleteSkipPos = false;
int currentPosition = manipulator.currentPosition();
bool autoParenthesesEnabled = true;
if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
@@ -124,7 +125,7 @@ void ClangAssistProposalItem::apply(TextEditor::TextDocumentManipulatorInterface
// If the function doesn't return anything, automatically place the semicolon,
// unless we're doing a scope completion (then it might be function definition).
const QChar characterAtCursor = manipulator.characterAt(manipulator.currentPosition());
const QChar characterAtCursor = manipulator.characterAt(currentPosition);
bool endWithSemicolon = m_typedCharacter == QLatin1Char(';')/*
|| (function->returnType()->isVoidType() && m_completionOperator != T_COLON_COLON)*/; //###
const QChar semicolon = m_typedCharacter.isNull() ? QLatin1Char(';') : m_typedCharacter;
@@ -181,7 +182,13 @@ void ClangAssistProposalItem::apply(TextEditor::TextDocumentManipulatorInterface
// Avoid inserting characters that are already there
QTextCursor cursor = manipulator.textCursorAt(basePosition);
cursor.movePosition(QTextCursor::EndOfWord);
const int currentPosition = cursor.position();
const QString textAfterCursor = manipulator.textAt(currentPosition,
cursor.position() - currentPosition);
if (textToBeInserted != textAfterCursor
&& textToBeInserted.indexOf(textAfterCursor, currentPosition - basePosition) >= 0) {
currentPosition = cursor.position();
}
for (int i = 0; i < extraCharacters.length(); ++i) {
const QChar a = extraCharacters.at(i);

31
src/plugins/cpptools/cppcompletionassist.cpp
View File

@@ -309,28 +309,20 @@ void CppAssistProposalItem::applyContextualContent(TextDocumentManipulatorInterf
--cursorOffset;
}
// Determine the length of characters that should just be kept on the editor, but do
// not consider content that ends as an identifier (which could be undesired).
const int lineEnd = manipulator.positionAt(EndOfLinePosition);
const QString inEditor = manipulator.textAt(manipulator.currentPosition(),
lineEnd - manipulator.currentPosition());
int preserveLength = 0;
if (!inEditor.isEmpty()) {
preserveLength = toInsert.length() - (manipulator.currentPosition() - basePosition);
const int inEditorLength = inEditor.length();
while (preserveLength > 0) {
if (inEditor.startsWith(toInsert.right(preserveLength))
&& (inEditorLength == preserveLength
|| !CppTools::isValidIdentifierChar(inEditor.at(preserveLength)))) {
break;
}
--preserveLength;
}
// Avoid inserting characters that are already there
int currentPosition = manipulator.currentPosition();
QTextCursor cursor = manipulator.textCursorAt(basePosition);
cursor.movePosition(QTextCursor::EndOfWord);
const QString textAfterCursor = manipulator.textAt(currentPosition,
cursor.position() - currentPosition);
if (toInsert != textAfterCursor
&& toInsert.indexOf(textAfterCursor, currentPosition - basePosition) >= 0) {
currentPosition = cursor.position();
}
for (int i = 0; i < extraChars.length(); ++i) {
const QChar a = extraChars.at(i);
const QChar b = manipulator.characterAt(manipulator.currentPosition() + i + preserveLength);
const QChar b = manipulator.characterAt(currentPosition + i);
if (a == b)
++extraLength;
else
@@ -340,8 +332,9 @@ void CppAssistProposalItem::applyContextualContent(TextDocumentManipulatorInterf
toInsert += extraChars;
// Insert the remainder of the name
const int length = manipulator.currentPosition() - basePosition + preserveLength + extraLength;
const int length = currentPosition - basePosition + extraLength;
manipulator.replace(basePosition, length, toInsert);
manipulator.setCursorPosition(basePosition + toInsert.length());
if (cursorOffset)
manipulator.setCursorPosition(manipulator.currentPosition() + cursorOffset);
if (setAutoCompleteSkipPos)

15
src/plugins/texteditor/codeassist/codeassistant.cpp
View File

@@ -365,8 +365,21 @@ void CodeAssistantPrivate::handlePrefixExpansion(const QString &newPrefix)
cursor.setPosition(m_proposal->basePosition());
cursor.movePosition(QTextCursor::EndOfWord);
int currentPosition = m_editorWidget->position();
const QString textAfterCursor = m_editorWidget->textAt(currentPosition,
cursor.position() - currentPosition);
if (!textAfterCursor.startsWith(newPrefix)) {
if (newPrefix.indexOf(textAfterCursor, currentPosition - m_proposal->basePosition()) >= 0)
currentPosition = cursor.position();
const QStringRef prefixAddition =
newPrefix.midRef(currentPosition - m_proposal->basePosition());
// If remaining string starts with the prefix addition
if (textAfterCursor.startsWith(prefixAddition))
currentPosition += prefixAddition.size();
}
m_editorWidget->setCursorPosition(m_proposal->basePosition());
m_editorWidget->replace(cursor.position() - m_proposal->basePosition(), newPrefix);
m_editorWidget->replace(currentPosition - m_proposal->basePosition(), newPrefix);
notifyChange();
}