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Clang: Don't replace text if the original text is equal

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A replace is changing the document revision which is triggering a reparse
of the translation unit.

Change-Id: I73863af650dd8e6d3fb3e5ab4112609ced201614
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
This commit is contained in:
Marco Bubke
2015-08-27 17:12:30 +02:00
parent f2b7371af1
commit dc31e3742a
1 changed files with 24 additions and 19 deletions
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43
src/plugins/clangcodemodel/clangassistproposalitem.cpp
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@@ -85,7 +85,7 @@ void ClangAssistProposalItem::applyContextualContent(TextEditor::TextEditorWidge
{
const CodeCompletion ccr = codeCompletion();
QString toInsert = text();
QString textToBeInserted = text();
QString extraChars;
int extraLength = 0;
int cursorOffset = 0;
@@ -96,7 +96,7 @@ void ClangAssistProposalItem::applyContextualContent(TextEditor::TextEditorWidge
if (m_typedChar == QLatin1Char('(')) // Eat the opening parenthesis
m_typedChar = QChar();
} else if (m_completionOperator == T_STRING_LITERAL || m_completionOperator == T_ANGLE_STRING_LITERAL) {
if (!toInsert.endsWith(QLatin1Char('/'))) {
if (!textToBeInserted.endsWith(QLatin1Char('/'))) {
extraChars += QLatin1Char((m_completionOperator == T_ANGLE_STRING_LITERAL) ? '>' : '"');
} else {
if (m_typedChar == QLatin1Char('/')) // Eat the slash
@@ -110,7 +110,7 @@ void ClangAssistProposalItem::applyContextualContent(TextEditor::TextEditorWidge
converter.parseChunks(ccr.chunks());
toInsert = converter.text();
textToBeInserted = converter.text();
if (converter.hasPlaceholderPositions())
cursorOffset = converter.placeholderPositions().at(0) - converter.text().size();
} else if (!ccr.text().isEmpty()) {
@@ -194,8 +194,8 @@ void ClangAssistProposalItem::applyContextualContent(TextEditor::TextEditorWidge
int existLength = 0;
if (!existingText.isEmpty() && ccr.completionKind() != CodeCompletion::KeywordCompletionKind) {
// Calculate the exist length in front of the extra chars
existLength = toInsert.length() - (editorWidget->position() - basePosition);
while (!existingText.startsWith(toInsert.right(existLength))) {
existLength = textToBeInserted.length() - (editorWidget->position() - basePosition);
while (!existingText.startsWith(textToBeInserted.right(existLength))) {
if (--existLength == 0)
break;
}
@@ -208,25 +208,30 @@ void ClangAssistProposalItem::applyContextualContent(TextEditor::TextEditorWidge
else
break;
}
toInsert += extraChars;
textToBeInserted += extraChars;
// Insert the remainder of the name
const int length = editorWidget->position() - basePosition + existLength + extraLength;
editorWidget->setCursorPosition(basePosition);
editorWidget->replace(length, toInsert);
if (cursorOffset)
editorWidget->setCursorPosition(editorWidget->position() + cursorOffset);
const auto textToBeReplaced = editorWidget->textAt(basePosition, length);
// indent the statement
if (ccr.completionKind() == CodeCompletion::KeywordCompletionKind) {
auto selectionCursor = editorWidget->textCursor();
selectionCursor.setPosition(basePosition);
selectionCursor.setPosition(basePosition + toInsert.size(), QTextCursor::KeepAnchor);
if (textToBeReplaced != textToBeInserted) {
editorWidget->setCursorPosition(basePosition);
editorWidget->replace(length, textToBeInserted);
if (cursorOffset)
editorWidget->setCursorPosition(editorWidget->position() + cursorOffset);
auto basePositionCursor = editorWidget->textCursor();
basePositionCursor.setPosition(basePosition);
if (hasOnlyBlanksBeforeCursorInLine(basePositionCursor))
editorWidget->textDocument()->autoIndent(selectionCursor);
// indent the statement
if (ccr.completionKind() == CodeCompletion::KeywordCompletionKind) {
auto selectionCursor = editorWidget->textCursor();
selectionCursor.setPosition(basePosition);
selectionCursor.setPosition(basePosition + textToBeInserted.size(), QTextCursor::KeepAnchor);
auto basePositionCursor = editorWidget->textCursor();
basePositionCursor.setPosition(basePosition);
if (hasOnlyBlanksBeforeCursorInLine(basePositionCursor))
editorWidget->textDocument()->autoIndent(selectionCursor);
}
}
}