void FunctionScope::setReturnType(AnalysisResultPtr ar, TypePtr type) {
// no change can be made to virtual function's prototype
if (m_overriding) return;
if (m_returnType) {
type = Type::Coerce(ar, m_returnType, type);
if (type && !Type::SameType(m_returnType, type)) {
ar->incNewlyInferred();
if (!ar->isFirstPass()) {
Logger::Verbose("Corrected function return type %s -> %s",
m_returnType->toString().c_str(),
type->toString().c_str());
}
}
}
if (!type->getName().empty()) {
FileScopePtr fs = getFileScope();
if (fs) fs->addClassDependency(ar, type->getName());
}
m_returnType = type;
}
ExpressionPtr IncludeExpression::postOptimize(AnalysisResultConstPtr ar) {
if (!m_include.empty()) {
if (!m_depsSet) {
analyzeInclude(ar, m_include);
m_depsSet = true;
}
FileScopePtr fs = ar->findFileScope(m_include);
if (fs && fs->getPseudoMain()) {
if (!Option::KeepStatementsWithNoEffect) {
if (ExpressionPtr rep = fs->getEffectiveImpl(ar)) {
recomputeEffects();
return replaceValue(rep->clone());
}
}
if (!Option::OutputHHBC) {
m_exp.reset();
}
} else {
m_include = "";
}
}
return ExpressionPtr();
}
bool Option::Load(const char *filename) {
ASSERT(filename && *filename);
try {
Scanner scanner(new ylmm::basic_buffer(filename), true, false);
Logger::Info("loading options from %s...", filename);
AnalysisResultPtr ar(new AnalysisResult());
struct stat sb;
if (stat(filename, &sb)) {
Logger::Error("Unable to stat file %s", filename);
return false;
}
ParserPtr parser(new Parser(scanner, filename, sb.st_size, ar));
if (parser->parse()) {
Logger::Error("Unable to parse file: %s\n%s", filename,
parser->getMessage().c_str());
return false;
}
FileScopePtr file = ar->findFileScope(filename, false);
ClassScopePtr cls = file->getClass("hphpoption");
if (!cls) {
Logger::Error("Unable to find HPHPOption class in %s", filename);
return false;
}
if (!Load(cls->getVariables())) {
return false;
}
} catch (std::runtime_error) {
Logger::Error("Unable to open file %s", filename);
return false;
}
return true;
}
void QueryExpression::doRewrites(AnalysisResultPtr ar,
FileScopePtr fileScope) {
// Clone the query expression for client rewriting later on.
auto csqe = static_pointer_cast<QueryExpression>(this->clone());
// Find expressions that capture client state and turn them into
// query parameter expression. The original expressions end up in m_queryargs.
CaptureExtractor ce;
auto qe = static_pointer_cast<QueryExpression>(
ce.rewrite(static_pointer_cast<Expression>(shared_from_this())));
// Expose the argument (capture) expressions to static analysis rather than
// the original clause list (it is still available in m_originalExpressions).
m_expressions = static_pointer_cast<ExpressionList>(m_expressions->clone());
m_expressions->clearElements();
auto queryArgs = static_pointer_cast<ExpressionList>(m_expressions->clone());
for (auto e : ce.getCapturedExpressions()) {
queryArgs->addElement(e);
}
assert(queryArgs->getCount() > 0); //syntax requires an initial from clause
m_expressions->addElement(queryArgs);
// Rewrite select clauses so that they become tuples of columns when
// sent to the query provider.
ServerSideSelectRewriter se;
se.rewriteQuery(qe);
// Serialize the rewritten query expression so that it can be sent to
// the query provider as a string which it can unserialize and turn
// into a query (unless already cached).
std::ostringstream serialized;
CodeGenerator cg(&serialized, CodeGenerator::Output::CodeModel,
&fileScope->getName());
cg.setAstClassPrefix("Code");
qe->outputCodeModel(cg);
std::string s(serialized.str().c_str(), serialized.str().length());
m_querystr = makeStaticString(s);
// start again with the clone of the original query (not the one
// that was rewritten for use by the query provider) and rewrite
// it into a closure expression that is used by the query provider
// to execute code in the context to the client, not the server.
auto selectClosure = csqe->clientSideRewrite(ar, fileScope);
if (selectClosure != nullptr) {
m_expressions->addElement(selectClosure);
}
}
void FunctionStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr scope) {
// Correctness checks are normally done before adding function to scope.
if (m_params) {
for (int i = 0; i < m_params->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*m_params)[i]);
if (param->hasTypeHint() && param->defaultValue()) {
param->compatibleDefault();
}
}
}
// note it's important to add to scope, not a pushed FunctionContainer,
// as a function may be declared inside a class's method, yet this function
// is a global function, not a class method.
FunctionScopePtr fs = onInitialParse(ar, scope);
FunctionScope::RecordFunctionInfo(m_name, fs);
if (!scope->addFunction(ar, fs)) {
m_ignored = true;
return;
}
}
void InterfaceStatement::onParse(AnalysisResultConstPtr ar,
FileScopePtr scope) {
vector<string> bases;
if (m_base) m_base->getStrings(bases);
for (auto &b : bases) {
ar->parseOnDemandByClass(b);
}
StatementPtr stmt = dynamic_pointer_cast<Statement>(shared_from_this());
vector<UserAttributePtr> attrs;
if (m_attrList) {
for (int i = 0; i < m_attrList->getCount(); ++i) {
UserAttributePtr a =
dynamic_pointer_cast<UserAttribute>((*m_attrList)[i]);
attrs.push_back(a);
}
}
auto classScope =
std::make_shared<ClassScope>(
scope, ClassScope::KindOf::Interface, m_originalName, "", bases,
m_docComment, stmt, attrs);
setBlockScope(classScope);
scope->addClass(ar, classScope);
classScope->setPersistent(false);
if (m_stmt) {
for (int i = 0; i < m_stmt->getCount(); i++) {
IParseHandlerPtr ph = dynamic_pointer_cast<IParseHandler>((*m_stmt)[i]);
ph->onParseRecur(ar, scope, classScope);
}
checkArgumentsToPromote(scope, ExpressionListPtr(), T_INTERFACE);
}
}
void InterfaceStatement::onParse(AnalysisResultConstPtr ar,
FileScopePtr scope) {
vector<string> bases;
if (m_base) m_base->getOriginalStrings(bases);
for (auto &b : bases) {
ar->parseOnDemandByClass(Util::toLower(b));
}
StatementPtr stmt = dynamic_pointer_cast<Statement>(shared_from_this());
vector<UserAttributePtr> attrs;
if (m_attrList) {
for (int i = 0; i < m_attrList->getCount(); ++i) {
UserAttributePtr a =
dynamic_pointer_cast<UserAttribute>((*m_attrList)[i]);
attrs.push_back(a);
}
}
ClassScopePtr classScope
(new ClassScope(ClassScope::KindOfInterface, m_name, "", bases,
m_docComment, stmt, attrs));
setBlockScope(classScope);
scope->addClass(ar, classScope);
if (Option::PersistenceHook) {
classScope->setPersistent(Option::PersistenceHook(classScope, scope));
}
if (m_stmt) {
for (int i = 0; i < m_stmt->getCount(); i++) {
IParseHandlerPtr ph = dynamic_pointer_cast<IParseHandler>((*m_stmt)[i]);
ph->onParseRecur(ar, classScope);
}
checkArgumentsToPromote(ExpressionListPtr(), T_INTERFACE);
}
}
void FunctionStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr scope) {
// Correctness checks are normally done before adding function to scope.
if (m_params) {
for (int i = 0; i < m_params->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*m_params)[i]);
if (param->hasTypeHint() && param->defaultValue()) {
param->compatibleDefault();
}
}
}
// note it's important to add to scope, not a pushed FunctionContainer,
// as a function may be declared inside a class's method, yet this function
// is a global function, not a class method.
FunctionScopePtr fs = onInitialParse(ar, scope);
FunctionScope::RecordFunctionInfo(m_name, fs);
if (!scope->addFunction(ar, fs)) {
m_ignored = true;
return;
}
if (Option::PersistenceHook) {
fs->setPersistent(Option::PersistenceHook(fs, scope));
}
if (m_name == "__autoload") {
if (m_params && m_params->getCount() != 1) {
parseTimeFatal(Compiler::InvalidMagicMethod,
"__autoload() must take exactly 1 argument");
}
}
if (fs->isNative()) {
if (getStmts()) {
parseTimeFatal(Compiler::InvalidAttribute,
"Native functions must not have an implementation body");
}
if (m_params) {
int nParams = m_params->getCount();
for (int i = 0; i < nParams; ++i) {
// Variadic capture params don't need types
// since they'll be Arrays as far as HNI is concerned.
auto param = dynamic_pointer_cast<ParameterExpression>((*m_params)[i]);
if (!param->hasUserType() && !param->isVariadic()) {
parseTimeFatal(Compiler::InvalidAttribute,
"Native function calls must have type hints "
"on all args");
}
}
}
if (getReturnTypeConstraint().empty()) {
parseTimeFatal(Compiler::InvalidAttribute,
"Native function %s() must have a return type hint",
getOriginalName().c_str());
}
} else if (!getStmts()) {
parseTimeFatal(Compiler::InvalidAttribute,
"Global function %s() must contain a body",
getOriginalName().c_str());
}
}
void TypedefStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr scope) {
scope->addTypeAliasName(name);
}
void ClassStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr fs) {
ClassScope::KindOf kindOf = ClassScope::KindOfObjectClass;
switch (m_type) {
case T_CLASS: kindOf = ClassScope::KindOfObjectClass; break;
case T_ABSTRACT: kindOf = ClassScope::KindOfAbstractClass; break;
case T_FINAL: kindOf = ClassScope::KindOfFinalClass; break;
default:
ASSERT(false);
}
vector<string> bases;
if (!m_parent.empty()) {
bases.push_back(m_parent);
}
if (m_base) m_base->getStrings(bases);
StatementPtr stmt = dynamic_pointer_cast<Statement>(shared_from_this());
ClassScopePtr classScope(new ClassScope(kindOf, m_originalName, m_parent,
bases, m_docComment,
stmt));
setBlockScope(classScope);
if (!fs->addClass(ar, classScope)) {
m_ignored = true;
return;
}
if (m_stmt) {
bool seenConstruct = false;
// flatten continuation StatementList into MethodStatements
for (int i = 0; i < m_stmt->getCount(); i++) {
StatementListPtr stmts =
dynamic_pointer_cast<StatementList>((*m_stmt)[i]);
if (stmts) {
m_stmt->removeElement(i);
for (int j = 0; j < stmts->getCount(); j++) {
m_stmt->insertElement((*stmts)[j], i + j);
}
}
}
for (int i = 0; i < m_stmt->getCount(); i++) {
MethodStatementPtr meth =
dynamic_pointer_cast<MethodStatement>((*m_stmt)[i]);
if (meth && meth->getName() == "__construct") {
seenConstruct = true;
break;
}
}
for (int i = 0; i < m_stmt->getCount(); i++) {
if (!seenConstruct) {
MethodStatementPtr meth =
dynamic_pointer_cast<MethodStatement>((*m_stmt)[i]);
if (meth && classScope && meth->getName() == classScope->getName()
&& !meth->getModifiers()->isStatic()) {
// class-name constructor
classScope->setAttribute(ClassScope::ClassNameConstructor);
}
}
IParseHandlerPtr ph = dynamic_pointer_cast<IParseHandler>((*m_stmt)[i]);
ph->onParseRecur(ar, classScope);
}
}
}
static bool by_filename(const FileScopePtr &f1, const FileScopePtr &f2) {
return f1->getName() < f2->getName();
}
void MethodStatement::analyzeProgram(AnalysisResultPtr ar) {
FunctionScopeRawPtr funcScope = getFunctionScope();
if (m_params) {
m_params->analyzeProgram(ar);
}
if (m_stmt) m_stmt->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeAll) {
funcScope->setParamSpecs(ar);
if (funcScope->isGenerator()) {
MethodStatementRawPtr orig = getOrigGeneratorFunc();
VariableTablePtr variables = funcScope->getVariables();
orig->getFunctionScope()->addUse(funcScope, BlockScope::UseKindClosure);
orig->getFunctionScope()->setContainsBareThis(
funcScope->containsBareThis(), funcScope->containsRefThis());
orig->getFunctionScope()->setContainsThis(funcScope->containsThis());
if (ExpressionListPtr params = orig->getParams()) {
for (int i = 0; i < params->getCount(); ++i) {
auto param = dynamic_pointer_cast<ParameterExpression>((*params)[i]);
Symbol *gp = variables->addDeclaredSymbol(param->getName(), param);
gp->setGeneratorParameter();
if (param->isRef()) {
gp->setRefGeneratorParameter();
gp->setReferenced();
}
}
}
if (ClosureExpressionRawPtr closure = orig->getContainingClosure()) {
if (ExpressionListPtr cvars = closure->getClosureVariables()) {
for (int i = 0; i < cvars->getCount(); ++i) {
auto param = dynamic_pointer_cast<ParameterExpression>((*cvars)[i]);
Symbol *gp = variables->addDeclaredSymbol(
param->getName(), ConstructPtr());
gp->setGeneratorParameter();
if (param->isRef()) {
gp->setRefGeneratorParameter();
gp->setReferenced();
}
}
}
}
}
if (Option::IsDynamicFunction(m_method, m_name) || Option::AllDynamic) {
funcScope->setDynamic();
}
// TODO: this may have to expand to a concept of "virtual" functions...
if (m_method) {
funcScope->disableInline();
if (m_name.length() > 2 && m_name.substr(0,2) == "__") {
bool magic = true;
int paramCount = 0;
if (m_name == "__destruct") {
funcScope->setOverriding(Type::Variant);
} else if (m_name == "__call") {
funcScope->setOverriding(Type::Variant, Type::String, Type::Array);
paramCount = 2;
} else if (m_name == "__set") {
funcScope->setOverriding(Type::Variant, Type::String, Type::Variant);
paramCount = 2;
} else if (m_name == "__get") {
funcScope->setOverriding(Type::Variant, Type::String);
paramCount = 1;
} else if (m_name == "__isset") {
funcScope->setOverriding(Type::Boolean, Type::String);
paramCount = 1;
} else if (m_name == "__unset") {
funcScope->setOverriding(Type::Variant, Type::String);
paramCount = 1;
} else if (m_name == "__sleep") {
funcScope->setOverriding(Type::Variant);
} else if (m_name == "__wakeup") {
funcScope->setOverriding(Type::Variant);
} else if (m_name == "__set_state") {
funcScope->setOverriding(Type::Variant, Type::Variant);
paramCount = 1;
} else if (m_name == "__tostring") {
funcScope->setOverriding(Type::String);
} else if (m_name == "__clone") {
funcScope->setOverriding(Type::Variant);
} else {
paramCount = -1;
if (m_name != "__construct") {
magic = false;
}
}
if (paramCount >= 0 && paramCount != funcScope->getMaxParamCount()) {
Compiler::Error(Compiler::InvalidMagicMethod, shared_from_this());
magic = false;
}
if (magic) funcScope->setMagicMethod();
}
// ArrayAccess methods
else if (m_name.length() > 6 && m_name.substr(0, 6) == "offset") {
if (m_name == "offsetexists") {
funcScope->setOverriding(Type::Boolean, Type::Variant);
} else if (m_name == "offsetget") {
funcScope->setOverriding(Type::Variant, Type::Variant);
} else if (m_name == "offsetset") {
funcScope->setOverriding(Type::Variant, Type::Variant, Type::Variant);
} else if (m_name == "offsetunset") {
funcScope->setOverriding(Type::Variant, Type::Variant);
}
}
}
} else if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
TypePtr ret = funcScope->getReturnType();
if (ret && ret->isSpecificObject()) {
FileScopePtr fs = getFileScope();
if (fs) fs->addClassDependency(ar, ret->getName());
}
if (!getFunctionScope()->usesLSB()) {
if (StatementPtr orig = getOrigGeneratorFunc()) {
orig->getFunctionScope()->clearUsesLSB();
}
}
}
}
void ClassStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr fs) {
ClassScope::KindOf kindOf = ClassScope::KindOfObjectClass;
switch (m_type) {
case T_CLASS: kindOf = ClassScope::KindOfObjectClass; break;
case T_ABSTRACT: kindOf = ClassScope::KindOfAbstractClass; break;
case T_FINAL: kindOf = ClassScope::KindOfFinalClass; break;
case T_TRAIT: kindOf = ClassScope::KindOfTrait; break;
default:
assert(false);
}
vector<string> bases;
if (!m_originalParent.empty()) {
bases.push_back(m_originalParent);
}
if (m_base) m_base->getOriginalStrings(bases);
for (auto &b : bases) {
ar->parseOnDemandByClass(Util::toLower(b));
}
vector<UserAttributePtr> attrs;
if (m_attrList) {
for (int i = 0; i < m_attrList->getCount(); ++i) {
UserAttributePtr a =
dynamic_pointer_cast<UserAttribute>((*m_attrList)[i]);
attrs.push_back(a);
}
}
StatementPtr stmt = dynamic_pointer_cast<Statement>(shared_from_this());
ClassScopePtr classScope(new ClassScope(kindOf, m_originalName,
m_originalParent,
bases, m_docComment,
stmt, attrs));
setBlockScope(classScope);
if (!fs->addClass(ar, classScope)) {
m_ignored = true;
return;
}
if (Option::PersistenceHook) {
classScope->setPersistent(Option::PersistenceHook(classScope, fs));
}
if (m_stmt) {
MethodStatementPtr constructor;
// flatten continuation StatementList into MethodStatements
for (int i = 0; i < m_stmt->getCount(); i++) {
StatementListPtr stmts =
dynamic_pointer_cast<StatementList>((*m_stmt)[i]);
if (stmts) {
m_stmt->removeElement(i);
for (int j = 0; j < stmts->getCount(); j++) {
m_stmt->insertElement((*stmts)[j], i + j);
}
}
}
for (int i = 0; i < m_stmt->getCount(); i++) {
MethodStatementPtr meth =
dynamic_pointer_cast<MethodStatement>((*m_stmt)[i]);
if (meth && meth->getName() == "__construct") {
constructor = meth;
break;
}
}
for (int i = 0; i < m_stmt->getCount(); i++) {
if (!constructor) {
MethodStatementPtr meth =
dynamic_pointer_cast<MethodStatement>((*m_stmt)[i]);
if (meth && meth->getName() == classScope->getName()
&& !classScope->isTrait()) {
// class-name constructor
constructor = meth;
classScope->setAttribute(ClassScope::ClassNameConstructor);
}
}
IParseHandlerPtr ph = dynamic_pointer_cast<IParseHandler>((*m_stmt)[i]);
ph->onParseRecur(ar, classScope);
}
if (constructor && constructor->getModifiers()->isStatic()) {
constructor->parseTimeFatal(Compiler::InvalidAttribute,
"Constructor %s::%s() cannot be static",
classScope->getOriginalName().c_str(),
constructor->getOriginalName().c_str());
}
}
}
void MethodStatement::analyzeProgram(AnalysisResultPtr ar) {
FunctionScopeRawPtr funcScope = getFunctionScope();
if (m_params) {
m_params->analyzeProgram(ar);
}
if (m_stmt) m_stmt->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeAll) {
funcScope->setParamSpecs(ar);
if (Option::IsDynamicFunction(m_method, m_name) || Option::AllDynamic) {
funcScope->setDynamic();
}
// TODO: this may have to expand to a concept of "virtual" functions...
if (m_method) {
funcScope->disableInline();
if (m_name.length() > 2 && m_name.substr(0,2) == "__") {
bool magic = true;
int paramCount = 0;
if (m_name == "__destruct") {
funcScope->setOverriding(Type::Variant);
} else if (m_name == "__call") {
funcScope->setOverriding(Type::Variant, Type::String, Type::Array);
paramCount = 2;
} else if (m_name == "__set") {
funcScope->setOverriding(Type::Variant, Type::String, Type::Variant);
paramCount = 2;
} else if (m_name == "__get") {
funcScope->setOverriding(Type::Variant, Type::String);
paramCount = 1;
} else if (m_name == "__isset") {
funcScope->setOverriding(Type::Boolean, Type::String);
paramCount = 1;
} else if (m_name == "__unset") {
funcScope->setOverriding(Type::Variant, Type::String);
paramCount = 1;
} else if (m_name == "__sleep") {
funcScope->setOverriding(Type::Variant);
} else if (m_name == "__wakeup") {
funcScope->setOverriding(Type::Variant);
} else if (m_name == "__set_state") {
funcScope->setOverriding(Type::Variant, Type::Variant);
paramCount = 1;
} else if (m_name == "__tostring") {
funcScope->setOverriding(Type::String);
} else if (m_name == "__clone") {
funcScope->setOverriding(Type::Variant);
} else {
paramCount = -1;
if (m_name != "__construct") {
magic = false;
}
}
if (paramCount >= 0 && paramCount != funcScope->getMaxParamCount()) {
Compiler::Error(Compiler::InvalidMagicMethod, shared_from_this());
magic = false;
}
if (magic) funcScope->setMagicMethod();
}
// ArrayAccess methods
else if (m_name.length() > 6 && m_name.substr(0, 6) == "offset") {
if (m_name == "offsetexists") {
funcScope->setOverriding(Type::Boolean, Type::Variant);
} else if (m_name == "offsetget") {
funcScope->setOverriding(Type::Variant, Type::Variant);
} else if (m_name == "offsetset") {
funcScope->setOverriding(Type::Variant, Type::Variant, Type::Variant);
} else if (m_name == "offsetunset") {
funcScope->setOverriding(Type::Variant, Type::Variant);
}
}
}
} else if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
TypePtr ret = funcScope->getReturnType();
if (ret && ret->isSpecificObject()) {
FileScopePtr fs = getFileScope();
if (fs) fs->addClassDependency(ar, ret->getName());
}
}
}
void ClassStatement::onParse(AnalysisResultConstPtr ar, FileScopePtr fs) {
ClassScope::KindOf kindOf = ClassScope::KindOf::ObjectClass;
switch (m_type) {
case T_CLASS: kindOf = ClassScope::KindOf::ObjectClass; break;
case T_ABSTRACT: kindOf = ClassScope::KindOf::AbstractClass; break;
case T_STATIC: // Slight hack: see comments in hphp.y
kindOf = ClassScope::KindOf::UtilClass; break;
case T_FINAL: kindOf = ClassScope::KindOf::FinalClass; break;
case T_TRAIT: kindOf = ClassScope::KindOf::Trait; break;
case T_ENUM: kindOf = ClassScope::KindOf::Enum; break;
default:
assert(false);
}
std::vector<std::string> bases;
if (!m_originalParent.empty()) {
bases.push_back(m_originalParent);
}
if (m_base) m_base->getStrings(bases);
for (auto &b : bases) {
ar->parseOnDemandByClass(b);
}
std::vector<UserAttributePtr> attrs;
if (m_attrList) {
for (int i = 0; i < m_attrList->getCount(); ++i) {
UserAttributePtr a =
dynamic_pointer_cast<UserAttribute>((*m_attrList)[i]);
attrs.push_back(a);
}
}
StatementPtr stmt = dynamic_pointer_cast<Statement>(shared_from_this());
auto classScope = std::make_shared<ClassScope>(
fs, kindOf, m_originalName,
m_originalParent,
bases, m_docComment,
stmt, attrs);
setBlockScope(classScope);
if (!fs->addClass(ar, classScope)) {
m_ignored = true;
return;
}
classScope->setPersistent(false);
if (m_stmt) {
MethodStatementPtr constructor = nullptr;
MethodStatementPtr destructor = nullptr;
MethodStatementPtr clone = nullptr;
// flatten continuation StatementList into MethodStatements
for (int i = 0; i < m_stmt->getCount(); i++) {
StatementListPtr stmts =
dynamic_pointer_cast<StatementList>((*m_stmt)[i]);
if (stmts) {
m_stmt->removeElement(i);
for (int j = 0; j < stmts->getCount(); j++) {
m_stmt->insertElement((*stmts)[j], i + j);
}
}
}
for (int i = 0; i < m_stmt->getCount(); i++) {
MethodStatementPtr meth =
dynamic_pointer_cast<MethodStatement>((*m_stmt)[i]);
if (meth) {
if (meth->isNamed("__construct")) {
constructor = meth;
continue;
}
if (meth->isNamed("__destruct")) {
destructor = meth;
continue;
}
if (meth->isNamed("__clone")) {
clone = meth;
continue;
}
}
if (constructor && destructor && clone) {
break;
}
}
for (int i = 0; i < m_stmt->getCount(); i++) {
if (!constructor) {
MethodStatementPtr meth =
dynamic_pointer_cast<MethodStatement>((*m_stmt)[i]);
if (meth &&
meth->isNamed(classScope->getOriginalName()) &&
!classScope->isTrait()) {
// class-name constructor
constructor = meth;
classScope->setAttribute(ClassScope::ClassNameConstructor);
}
}
IParseHandlerPtr ph = dynamic_pointer_cast<IParseHandler>((*m_stmt)[i]);
ph->onParseRecur(ar, fs, classScope);
}
if (constructor && constructor->getModifiers()->isStatic()) {
constructor->parseTimeFatal(fs,
Compiler::InvalidAttribute,
"Constructor %s::%s() cannot be static",
classScope->getOriginalName().c_str(),
constructor->getOriginalName().c_str());
}
if (destructor && destructor->getModifiers()->isStatic()) {
destructor->parseTimeFatal(fs,
Compiler::InvalidAttribute,
"Destructor %s::%s() cannot be static",
classScope->getOriginalName().c_str(),
destructor->getOriginalName().c_str());
}
if (clone && clone->getModifiers()->isStatic()) {
clone->parseTimeFatal(fs,
Compiler::InvalidAttribute,
"Clone method %s::%s() cannot be static",
classScope->getOriginalName().c_str(),
clone->getOriginalName().c_str());
}
}
}
// Rewrite the outermost select clause so that it references properties of
// a result tuple constructed by the query provider. Then wrap this expression
// in a lambda so that the query provider can invoke it as a call back every
// time it produces a result tuple (row).
ClosureExpressionPtr QueryExpression::clientSideRewrite(
AnalysisResultPtr ar, FileScopePtr fileScope) {
// Rewrite the select expression into an expression that refers to
// table columns (including computed columns) via properties of an
// object produced by the query provider at runtime.
ClientSideSelectRewriter cs;
cs.rewriteQuery(static_pointer_cast<QueryExpression>(shared_from_this()));
auto csSelect = cs.getClientSideSelectClause();
// null if there is no select clause.
if (csSelect == nullptr) return nullptr;
ExpressionPtr selectExpr = csSelect->getExpression();
// Now wrap up the rewritten expression into a lambda expression that
// is passed to the query provider. When the query result is iterated,
// the closure is called for each row in the query result in order to
// produce the value specified by this select expression.
// Create a return statement for the lambda body
LabelScopePtr labelScope(new LabelScope());
ReturnStatementPtr returnStatement(
new ReturnStatement(BlockScopePtr(), labelScope, getRange(), selectExpr)
);
// Wrap up the return statement in a list for the lambda body
StatementListPtr stmt(
new StatementList(BlockScopePtr(), labelScope, getRange())
);
stmt->addElement(returnStatement);
// Create a function statement for the lambda:
// First create a formal parameter list, consisting of a single
// parameter that will receive an object from the query provider
// with a property for each table column that is referenced in the
// expression of this select clause.
TypeAnnotationPtr type;
bool hhType = true;
std::string paramName = "__query_result_row__";
bool byRefParam = false;
TokenID modifier = 0;
ExpressionPtr defaultValue;
ExpressionPtr attributeList;
ParameterExpressionPtr parameter (
new ParameterExpression(BlockScopePtr(), getRange(), type, hhType,
paramName, byRefParam, modifier, defaultValue, attributeList)
);
ExpressionListPtr params(new ExpressionList(BlockScopePtr(), getRange()));
params->addElement(parameter);
// Now create a function statement object
ModifierExpressionPtr modifiers(
new ModifierExpression(BlockScopePtr(), getRange())
);
bool ref = false;
static int counter = 0;
std::string name = "__select__#" + std::to_string(counter++);
TypeAnnotationPtr retTypeAnnotation;
int attr = 0;
std::string docComment;
ExpressionListPtr attrList;
FunctionStatementPtr func(
new FunctionStatement(BlockScopePtr(), labelScope, getRange(), modifiers,
ref, name, params, retTypeAnnotation, stmt, attr,
docComment, attrList)
);
// The function statement needs a scope
std::vector<UserAttributePtr> uattrs;
FunctionScopePtr funcScope
(new FunctionScope(ar, false, name, func, false, 1, 1,
nullptr, attr, docComment, fileScope, uattrs));
fileScope->addFunction(ar, funcScope);
func->resetScope(funcScope);
funcScope->setOuterScope(fileScope);
// Now construct a closure expression to create the closure value to
// pass to the query provider.
ExpressionListPtr captures;
ClosureExpressionPtr closure(
new ClosureExpression(BlockScopePtr(), getRange(), ClosureType::Short,
func, captures)
);
closure->getClosureFunction()->setContainingClosure(closure);
return closure;
}
