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C++: Use more direct approach to recognize special Qt tokens

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Change-Id: I45399a196500cbc6aecedfaa94a50890914906f1
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
This commit is contained in:
hjk
2013-04-16 18:10:35 +02:00
parent 080bf4ecb8
commit 357ffaa8bc
3 changed files with 60 additions and 58 deletions
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108
src/libs/cplusplus/pp-engine.cpp
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@@ -101,6 +101,63 @@ public:
}
};
typedef ScopedSwap<bool> ScopedBoolSwap;
static bool same(const char *a, const char *b, int size)
{
return strncmp(a, b, size) == 0;
}
static bool isQtReservedWord(const char *name, int size)
{
if (size < 4)
return false;
const char c = name[0];
if (c == 'Q') {
if (name[1] == '_') {
name += 2;
size -= 2;
switch (size) {
case 1:
return name[2] == 'D' || name[2] == 'Q';
case 4:
return same(name, "SLOT", size) || same(name, "EMIT", size);
case 5:
return same(name, "SLOTS", size) || same(name, "ENUMS", size)
|| same(name, "FLAGS", size);
case 6:
return same(name, "SIGNAL", size);
case 7:
return same(name, "SIGNALS", size) || same(name, "FOREACH", size);
case 8:
return same(name, "PROPERTY", size);
case 9:
return same(name, "INVOKABLE", size);
case 10:
return same(name, "INTERFACES", size);
case 16:
return same(name, "PRIVATE_PROPERTY", size);
}
}
return false;
}
if (c == 'S')
return (size == 6 && same(name, "SIGNAL", size)) || (size == 4 && same(name, "SLOT", size));
if (c == 's')
return (size == 7 && same(name, "signals", size)) || (size == 5 && same(name, "slots", size));
if (c == 'f')
return size == 7 && same(name, "foreach", size);
if (c == 'e')
return size == 4 && same(name, "emit", size);
return false;
}
} // anonymous namespace
namespace CPlusPlus {
@@ -821,7 +878,7 @@ _Lclassify:
lex(tk);
} while (isContinuationToken(*tk));
goto _Lclassify;
} else if (tk->is(T_IDENTIFIER) && !isQtReservedWord(tk->asByteArrayRef())) {
} else if (tk->is(T_IDENTIFIER) && !isQtReservedWord(tk->tokenStart(), tk->length())) {
m_state.updateIncludeGuardState(State::IncludeGuardStateHint_OtherToken);
if (m_state.m_inCondition && tk->asByteArrayRef() == "defined") {
handleDefined(tk);
@@ -1669,7 +1726,7 @@ void Preprocessor::handleDefineDirective(PPToken *tk)
lex(tk);
}
if (isQtReservedWord(ByteArrayRef(&macroName))) {
if (isQtReservedWord(macroName.data(), macroName.size())) {
QByteArray macroId = macro.name();
if (macro.isFunctionLike()) {
@@ -1920,53 +1977,6 @@ void Preprocessor::handleUndefDirective(PPToken *tk)
#endif // NO_DEBUG
}
bool Preprocessor::isQtReservedWord(const ByteArrayRef &macroId)
{
const int size = macroId.size();
if (size == 9 && macroId.at(0) == 'Q' && macroId == "Q_SIGNALS")
return true;
else if (size == 9 && macroId.at(0) == 'Q' && macroId == "Q_FOREACH")
return true;
else if (size == 7 && macroId.at(0) == 'Q' && macroId == "Q_SLOTS")
return true;
else if (size == 8 && macroId.at(0) == 'Q' && macroId == "Q_SIGNAL")
return true;
else if (size == 6 && macroId.at(0) == 'Q' && macroId == "Q_SLOT")
return true;
else if (size == 3 && macroId.at(0) == 'Q' && macroId == "Q_D")
return true;
else if (size == 3 && macroId.at(0) == 'Q' && macroId == "Q_Q")
return true;
else if (size == 10 && macroId.at(0) == 'Q' && macroId == "Q_PROPERTY")
return true;
else if (size == 18 && macroId.at(0) == 'Q' && macroId == "Q_PRIVATE_PROPERTY")
return true;
else if (size == 7 && macroId.at(0) == 'Q' && macroId == "Q_ENUMS")
return true;
else if (size == 7 && macroId.at(0) == 'Q' && macroId == "Q_FLAGS")
return true;
else if (size == 12 && macroId.at(0) == 'Q' && macroId == "Q_INTERFACES")
return true;
else if (size == 11 && macroId.at(0) == 'Q' && macroId == "Q_INVOKABLE")
return true;
else if (size == 6 && macroId.at(0) == 'S' && macroId == "SIGNAL")
return true;
else if (size == 4 && macroId.at(0) == 'S' && macroId == "SLOT")
return true;
else if (size == 7 && macroId.at(0) == 's' && macroId == "signals")
return true;
else if (size == 7 && macroId.at(0) == 'f' && macroId == "foreach")
return true;
else if (size == 5 && macroId.at(0) == 's' && macroId == "slots")
return true;
else if (size == 4 && macroId.at(0) == 'e' && macroId == "emit")
return true;
else if (size == 6 && macroId.at(0) == 'Q' && macroId == "Q_EMIT")
return true;
return false;
}
PPToken Preprocessor::generateToken(enum Kind kind,
const char *content, int length,
unsigned lineno,