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C++: Fix auto-parenthesis before comment

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First character in a multiline comment line will now be
recognized as a comment by the autocompleter.

Task-number: QTCREATORBUG-6459
Change-Id: I7103d90e808d40b5a48b7654340954323026a3f7
Reviewed-by: Leandro Melo <leandro.melo@nokia.com>
This commit is contained in:
David Schulz
2012-02-10 14:03:57 +01:00
committed by Leandro Melo
parent 7ad113b4aa
commit 6c5bec6e65
2 changed files with 54 additions and 43 deletions
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92
src/plugins/cppeditor/cppautocompleter.cpp
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@@ -63,7 +63,7 @@ bool CppAutoCompleter::contextAllowsAutoParentheses(const QTextCursor &cursor,
|| ch == QLatin1Char('\'')
|| ch == QLatin1Char('"')))
return false;
else if (isInComment(cursor))
else if (isInCommentHelper(cursor))
return false;
return true;
@@ -71,30 +71,15 @@ bool CppAutoCompleter::contextAllowsAutoParentheses(const QTextCursor &cursor,
bool CppAutoCompleter::contextAllowsElectricCharacters(const QTextCursor &cursor) const
{
const Token tk = SimpleLexer::tokenAt(cursor.block().text(), cursor.positionInBlock(),
BackwardsScanner::previousBlockState(cursor.block()));
Token token;
// XXX Duplicated from CPPEditor::isInComment to avoid tokenizing twice
if (tk.isComment()) {
if (isInCommentHelper(cursor, &token))
return false;
if (token.is(T_STRING_LITERAL) || token.is(T_WIDE_STRING_LITERAL)
|| token.is(T_CHAR_LITERAL) || token.is(T_WIDE_CHAR_LITERAL)) {
const unsigned pos = cursor.selectionEnd() - cursor.block().position();
if (pos == tk.end()) {
if (tk.is(T_CPP_COMMENT) || tk.is(T_CPP_DOXY_COMMENT))
return false;
const int state = cursor.block().userState() & 0xFF;
if (state > 0)
return false;
}
if (pos < tk.end())
return false;
}
else if (tk.is(T_STRING_LITERAL) || tk.is(T_WIDE_STRING_LITERAL)
|| tk.is(T_CHAR_LITERAL) || tk.is(T_WIDE_CHAR_LITERAL)) {
const unsigned pos = cursor.selectionEnd() - cursor.block().position();
if (pos <= tk.end())
if (pos <= token.end())
return false;
}
@@ -103,26 +88,7 @@ bool CppAutoCompleter::contextAllowsElectricCharacters(const QTextCursor &cursor
bool CppAutoCompleter::isInComment(const QTextCursor &cursor) const
{
const Token tk = SimpleLexer::tokenAt(cursor.block().text(), cursor.positionInBlock(),
BackwardsScanner::previousBlockState(cursor.block()));
if (tk.isComment()) {
const unsigned pos = cursor.selectionEnd() - cursor.block().position();
if (pos == tk.end()) {
if (tk.is(T_CPP_COMMENT) || tk.is(T_CPP_DOXY_COMMENT))
return true;
const int state = cursor.block().userState() & 0xFF;
if (state > 0)
return true;
}
if (pos < tk.end())
return true;
}
return false;
return isInCommentHelper(cursor);
}
QString CppAutoCompleter::insertMatchingBrace(const QTextCursor &cursor,
@@ -139,3 +105,43 @@ QString CppAutoCompleter::insertParagraphSeparator(const QTextCursor &cursor) co
MatchingText m;
return m.insertParagraphSeparator(cursor);
}
bool CppAutoCompleter::isInCommentHelper(const QTextCursor &cursor, Token *retToken) const
{
SimpleLexer tokenize;
tokenize.setQtMocRunEnabled(false);
tokenize.setObjCEnabled(false);
tokenize.setCxx0xEnabled(true);
const int prevState = BackwardsScanner::previousBlockState(cursor.block()) & 0xFF;
const QList<Token> tokens = tokenize(cursor.block().text(), prevState);
const unsigned pos = cursor.selectionEnd() - cursor.block().position();
if (tokens.isEmpty() || pos < tokens.first().begin())
return prevState > 0;
if (pos >= tokens.last().end()) {
const Token tk = tokens.last();
if (tk.is(T_CPP_COMMENT) || tk.is(T_CPP_DOXY_COMMENT))
return true;
return tk.isComment() && (cursor.block().userState() & 0xFF);
}
Token tk = tokenAtPosition(tokens, pos);
if (retToken)
*retToken = tk;
return tk.isComment();
}
const Token CppAutoCompleter::tokenAtPosition(const QList<Token> &tokens, const unsigned pos) const
{
for (int i = tokens.size() - 1; i >= 0; --i) {
const Token tk = tokens.at(i);
if (pos >= tk.begin() && pos < tk.end())
return tk;
}
return Token();
}