void ClassScope::addTraitAlias(TraitAliasStatementPtr aliasStmt) {
assert(Option::WholeProgram);
const string &traitName = aliasStmt->getTraitName();
const string &origMethName = aliasStmt->getMethodName();
const string &newMethName = aliasStmt->getNewMethodName();
string origName = traitName.empty() ? "(null)" : traitName;
origName += "::" + origMethName;
m_traitAliases.push_back(std::pair<string, string>(newMethName, origName));
}
void ClassScope::TMIOps::addTraitAlias(ClassScope* cs,
TraitAliasStatementPtr stmt,
ClassScopePtr traitCls) {
auto const& traitName = stmt->getTraitName();
auto const& origMethName = stmt->getMethodName();
auto const& newMethName = stmt->getNewMethodName();
auto origName = traitName.empty() ? "(null)" : traitName;
origName += "::" + origMethName;
cs->m_traitAliases.push_back(std::make_pair(newMethName, origName));
}
void ClassScope::applyTraitAliasRule(AnalysisResultPtr ar,
TraitAliasStatementPtr stmt) {
assert(Option::WholeProgram);
const string traitName = toLower(stmt->getTraitName());
const string origMethName = toLower(stmt->getMethodName());
const string newMethName = toLower(stmt->getNewMethodName());
// Get the trait's "class"
ClassScopePtr traitCls;
if (traitName.empty()) {
traitCls = findSingleTraitWithMethod(ar, origMethName);
} else {
traitCls = ar->findClass(traitName);
}
if (!traitCls || !(traitCls->isTrait())) {
stmt->analysisTimeFatal(
Compiler::UnknownTrait,
Strings::TRAITS_UNKNOWN_TRAIT,
traitName.empty() ? origMethName.c_str() : traitName.c_str()
);
}
// Keep record of alias rule
addTraitAlias(stmt);
// Get the method
std::set<ClassScopePtr> visitedTraits;
MethodStatementPtr methStmt = findTraitMethod(ar, traitCls, origMethName,
visitedTraits);
if (!methStmt) {
stmt->analysisTimeFatal(
Compiler::UnknownTraitMethod,
Strings::TRAITS_UNKNOWN_TRAIT_METHOD, origMethName.c_str()
);
}
if (origMethName == newMethName) {
setImportTraitMethodModifiers(origMethName, traitCls, stmt->getModifiers());
}
else {
// Insert renamed entry into the set of methods to be imported
TraitMethod traitMethod(traitCls, methStmt, stmt->getModifiers(), stmt,
stmt->getNewMethodName());
addImportTraitMethod(traitMethod, newMethName);
}
}
