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Take the branch when evaluating #ifndef QT_NO_XXX and QT_NO_XXX has been defined in a pro file.

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This commit is contained in:
Roberto Raggi
2010-03-12 15:24:45 +01:00
parent b5f8d7af7f
commit 37c042703f
1 changed files with 22 additions and 5 deletions
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27
src/libs/cplusplus/pp-engine.cpp
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@@ -137,7 +137,7 @@ using namespace CPlusPlus;
namespace {
bool isMacroDefined(QByteArray name, unsigned offset, Environment *env, Client *client)
Macro *macroDefinition(QByteArray name, unsigned offset, Environment *env, Client *client)
{
Macro *m = env->resolve(name);
if (client) {
@@ -146,7 +146,7 @@ bool isMacroDefined(QByteArray name, unsigned offset, Environment *env, Client *
else
client->failedMacroDefinitionCheck(offset, name);
}
return m != 0;
return m;
}
class RangeLexer
@@ -265,12 +265,12 @@ protected:
} else if (isTokenDefined()) {
++(*_lex);
if ((*_lex)->is(T_IDENTIFIER)) {
_value.set_long(isMacroDefined(tokenSpell(), (*_lex)->offset, env, client));
_value.set_long(macroDefinition(tokenSpell(), (*_lex)->offset, env, client) != 0);
++(*_lex);
} else if ((*_lex)->is(T_LPAREN)) {
++(*_lex);
if ((*_lex)->is(T_IDENTIFIER)) {
_value.set_long(isMacroDefined(tokenSpell(), (*_lex)->offset, env, client));
_value.set_long(macroDefinition(tokenSpell(), (*_lex)->offset, env, client) != 0);
++(*_lex);
if ((*_lex)->is(T_RPAREN)) {
++(*_lex);
@@ -1277,7 +1277,24 @@ void Preprocessor::processIfdef(bool checkUndefined,
if (testIfLevel()) {
if (tk->is(T_IDENTIFIER)) {
const QByteArray macroName = tokenSpell(*tk);
bool value = isMacroDefined(macroName, tk->offset, env, client) || env->isBuiltinMacro(macroName);
bool value = false;
if (Macro *macro = macroDefinition(macroName, tk->offset, env, client)) {
value = true;
// the macro is a feature constraint(e.g. QT_NO_XXX)
if (checkUndefined && macroName.startsWith("QT_NO_")) {
if (macro->fileName() == QLatin1String("<configuration>")) {
// and it' defined in a pro file (e.g. DEFINES += QT_NO_QOBJECT)
value = false; // take the branch
}
}
} else if (env->isBuiltinMacro(macroName)) {
value = true;
}
if (checkUndefined)
value = ! value;