TypePtr AssignmentExpression::
inferTypesImpl(AnalysisResultPtr ar, TypePtr type, bool coerce,
ExpressionPtr variable,
ExpressionPtr value /* = ExpressionPtr() */) {
TypePtr ret = type;
if (value) {
if (coerce) {
ret = value->inferAndCheck(ar, type, coerce);
} else {
ret = value->inferAndCheck(ar, NEW_TYPE(Some), coerce);
}
}
BlockScopePtr scope = ar->getScope();
if (variable->is(Expression::KindOfConstantExpression)) {
// ...as in ClassConstant statement
ConstantExpressionPtr exp =
dynamic_pointer_cast<ConstantExpression>(variable);
bool p;
scope->getConstants()->check(exp->getName(), ret, true, ar, variable, p);
} else if (variable->is(Expression::KindOfDynamicVariable)) {
// simptodo: not too sure about this
ar->getFileScope()->setAttribute(FileScope::ContainsLDynamicVariable);
} else if (variable->is(Expression::KindOfSimpleVariable)) {
SimpleVariablePtr var = dynamic_pointer_cast<SimpleVariable>(variable);
if (var->getName() == "this" && ar->getClassScope()) {
if (ar->isFirstPass()) {
ar->getCodeError()->record(variable, CodeError::ReassignThis,
variable);
}
}
if (ar->getPhase() == AnalysisResult::LastInference && value) {
if (!value->getExpectedType()) {
value->setExpectedType(variable->getActualType());
}
}
}
// if the value may involve object, consider the variable as "referenced"
// so that objects are not destructed prematurely.
bool referenced = true;
if (value && value->isScalar()) referenced = false;
if (ret && ret->isNoObjectInvolved()) referenced = false;
if (referenced && variable->is(Expression::KindOfSimpleVariable)) {
SimpleVariablePtr var =
dynamic_pointer_cast<SimpleVariable>(variable);
const std::string &name = var->getName();
VariableTablePtr variables = ar->getScope()->getVariables();
variables->addReferenced(name);
}
TypePtr vt = variable->inferAndCheck(ar, ret, true);
if (!coerce && type->is(Type::KindOfAny)) {
ret = vt;
}
return ret;
}
void ConstantTable::outputCPP(CodeGenerator &cg, AnalysisResultPtr ar) {
bool decl = true;
if (cg.getContext() == CodeGenerator::CppConstantsDecl) {
decl = false;
}
bool printed = false;
for (StringToSymbolMap::iterator iter = m_symbolMap.begin(),
end = m_symbolMap.end(); iter != end; ++iter) {
Symbol *sym = &iter->second;
if (!sym->declarationSet() || sym->isDynamic()) continue;
if (sym->isSystem() && cg.getOutput() != CodeGenerator::SystemCPP) continue;
const string &name = sym->getName();
ConstructPtr value = sym->getValue();
printed = true;
cg_printf(decl ? "extern const " : "const ");
TypePtr type = sym->getFinalType();
bool isString = type->is(Type::KindOfString);
if (isString) {
cg_printf("StaticString");
} else {
type->outputCPPDecl(cg, ar);
}
if (decl) {
cg_printf(" %s%s", Option::ConstantPrefix,
cg.formatLabel(name).c_str());
} else {
cg_printf(" %s%s", Option::ConstantPrefix,
cg.formatLabel(name).c_str());
cg_printf(isString ? "(" : " = ");
if (value) {
ExpressionPtr exp = dynamic_pointer_cast<Expression>(value);
ASSERT(!exp->getExpectedType());
ScalarExpressionPtr scalarExp =
dynamic_pointer_cast<ScalarExpression>(exp);
if (isString && scalarExp) {
cg_printf("LITSTR_INIT(%s)",
scalarExp->getCPPLiteralString(cg).c_str());
} else {
exp->outputCPP(cg, ar);
}
} else {
cg_printf("\"%s\"", cg.escapeLabel(name).c_str());
}
if (isString) {
cg_printf(")");
}
}
cg_printf(";\n");
}
if (printed) {
cg_printf("\n");
}
}
static void outputStringExpr(CodeGenerator &cg, AnalysisResultPtr ar,
ExpressionPtr exp, bool asLitStr) {
if (asLitStr && exp->isLiteralString()) {
const std::string &s = exp->getLiteralString();
std::string enc = string_cplus_escape(s.c_str(), s.size());
cg_printf("\"%s\", %d", enc.c_str(), (int)s.size());
return;
}
TypePtr et(exp->getExpectedType());
exp->setExpectedType(Type::String);
exp->outputCPP(cg, ar);
exp->setExpectedType(et);
}
void ConstantTable::outputCPP(CodeGenerator &cg, AnalysisResultPtr ar) {
bool decl = true;
if (cg.getContext() == CodeGenerator::CppConstantsDecl) {
decl = false;
}
bool printed = false;
for (StringToConstructPtrMap::const_iterator iter = m_declarations.begin();
iter != m_declarations.end(); ++iter) {
const string &name = iter->first;
if (isSystem(name) && cg.getOutput() != CodeGenerator::SystemCPP) continue;
ConstructPtr value = getValue(name);
if (isDynamic(name)) continue;
printed = true;
cg.printf(decl ? "extern const " : "const ");
TypePtr type = getFinalType(name);
if (type->is(Type::KindOfString)) {
cg.printf("StaticString");
} else {
type->outputCPPDecl(cg, ar);
}
const char *nameStr = name.c_str();
if (decl) {
cg.printf(" %s%s", Option::ConstantPrefix, nameStr);
} else {
cg.printf(" %s%s = ", Option::ConstantPrefix, nameStr);
if (value) {
ExpressionPtr exp = dynamic_pointer_cast<Expression>(value);
ASSERT(!exp->getExpectedType());
exp->outputCPP(cg, ar);
} else {
cg.printf("\"%s\"", nameStr);
}
}
cg.printf(";\n");
}
if (printed) {
cg.printf("\n");
}
}
void UnaryOpExpression::SetExpTypeForExistsContext(AnalysisResultPtr ar,
ExpressionPtr e,
bool allowPrimitives) {
if (!e) return;
TypePtr at(e->getActualType());
if (!allowPrimitives && at &&
at->isExactType() && at->isPrimitive()) {
at = e->inferAndCheck(ar, Type::Variant, true);
}
TypePtr it(e->getImplementedType());
TypePtr et(e->getExpectedType());
if (et && et->is(Type::KindOfVoid)) e->setExpectedType(TypePtr());
if (at && (!it || Type::IsMappedToVariant(it)) &&
((allowPrimitives && Type::HasFastCastMethod(at)) ||
(!allowPrimitives &&
(at->is(Type::KindOfObject) ||
at->is(Type::KindOfArray) ||
at->is(Type::KindOfString))))) {
e->setExpectedType(it ? at : TypePtr());
}
}
void Type::Dump(ExpressionPtr exp) {
Dump(exp->getExpectedType(), "Expected: %s\t");
Dump(exp->getActualType(), "Actual: %s\n");
}