void ArrayElementExpression::analyzeProgram(AnalysisResultPtr ar) {
m_variable->analyzeProgram(ar);
if (m_offset) m_offset->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
if (!m_global && (m_context & AccessContext) &&
!(m_context & (LValue|RefValue|DeepReference|
UnsetContext|RefParameter|InvokeArgument))) {
TypePtr type = m_variable->getActualType();
if (!type ||
(!type->is(Type::KindOfString) && !type->is(Type::KindOfArray))) {
FunctionScopePtr scope = getFunctionScope();
if (scope) scope->setNeedsRefTemp();
}
}
if (m_global) {
if (getContext() & (LValue|RefValue|DeepReference)) {
setContext(NoLValueWrapper);
} else if (!m_dynamicGlobal &&
!(getContext() &
(LValue|RefValue|RefParameter|DeepReference|
UnsetContext|ExistContext))) {
VariableTablePtr vars = ar->getVariables();
Symbol *sym = vars->getSymbol(m_globalName);
if (!sym || sym->getDeclaration().get() == this) {
Compiler::Error(Compiler::UseUndeclaredVariable, shared_from_this());
}
}
}
}
}
void ArrayElementExpression::analyzeProgram(AnalysisResultPtr ar) {
m_variable->analyzeProgram(ar);
if (m_offset) m_offset->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
if (m_global) {
if (getContext() & (LValue|RefValue|DeepReference)) {
setContext(NoLValueWrapper);
} else if (!m_dynamicGlobal &&
!(getContext() &
(LValue|RefValue|RefParameter|DeepReference|
UnsetContext|ExistContext))) {
VariableTablePtr vars = ar->getVariables();
Symbol *sym = vars->getSymbol(m_globalName);
if (!sym || sym->getDeclaration().get() == this) {
Compiler::Error(Compiler::UseUndeclaredGlobalVariable,
shared_from_this());
}
}
} else {
TypePtr at(m_variable->getActualType());
TypePtr et(m_variable->getExpectedType());
if (et &&
(et->is(Type::KindOfSequence) ||
et->is(Type::KindOfAutoSequence)) &&
at && at->isExactType()) {
// since Sequence maps to Variant in the runtime,
// using Sequence for the expected type will
// never allow the necessary casts to be generated.
m_variable->setExpectedType(at);
}
}
}
}
void ClosureExpression::analyzeProgram(AnalysisResultPtr ar) {
m_func->analyzeProgram(ar);
if (m_vars) {
m_values->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeAll) {
getFunctionScope()->addUse(m_func->getFunctionScope(),
BlockScope::UseKindClosure);
m_func->getFunctionScope()->setClosureVars(m_vars);
// closure function's variable table (not containing function's)
VariableTablePtr variables = m_func->getFunctionScope()->getVariables();
VariableTablePtr containing = getFunctionScope()->getVariables();
for (int i = 0; i < m_vars->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*m_vars)[i]);
const string &name = param->getName();
{
Symbol *containingSym = containing->addDeclaredSymbol(name, param);
containingSym->setPassClosureVar();
Symbol *sym = variables->addDeclaredSymbol(name, param);
sym->setClosureVar();
sym->setDeclaration(ConstructPtr());
if (param->isRef()) {
sym->setRefClosureVar();
sym->setUsed();
} else {
sym->clearRefClosureVar();
sym->clearUsed();
}
}
}
return;
}
if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
// closure function's variable table (not containing function's)
VariableTablePtr variables = m_func->getFunctionScope()->getVariables();
for (int i = 0; i < m_vars->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*m_vars)[i]);
const string &name = param->getName();
// so we can assign values to them, instead of seeing CVarRef
Symbol *sym = variables->getSymbol(name);
if (sym && sym->isParameter()) {
sym->setLvalParam();
}
}
}
}
FunctionScopeRawPtr container =
getFunctionScope()->getContainingNonClosureFunction();
if (container && container->isStatic()) {
m_func->getModifiers()->add(T_STATIC);
}
}
void ArrayElementExpression::analyzeProgram(AnalysisResultPtr ar) {
m_variable->analyzeProgram(ar);
if (m_offset) m_offset->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
if (m_global && !m_dynamicGlobal &&
!(getContext() &
(LValue|RefValue|RefParameter|UnsetContext|ExistContext))) {
VariableTablePtr vars = ar->getVariables();
Symbol *sym = vars->getSymbol(m_globalName);
if (!sym || sym->getDeclaration().get() == this) {
Compiler::Error(Compiler::UseUndeclaredVariable, shared_from_this());
}
}
}
}
void ClosureExpression::analyzeProgram(AnalysisResultPtr ar) {
m_func->analyzeProgram(ar);
if (m_vars) {
m_values->analyzeProgram(ar);
if (ar->getPhase() == AnalysisResult::AnalyzeAll) {
m_func->getFunctionScope()->setClosureVars(m_vars);
// closure function's variable table (not containing function's)
VariableTablePtr variables = m_func->getFunctionScope()->getVariables();
for (int i = 0; i < m_vars->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*m_vars)[i]);
string name = param->getName();
{
Symbol *sym = variables->addSymbol(name);
sym->setClosureVar();
if (param->isRef()) {
sym->setRefClosureVar();
} else {
sym->clearRefClosureVar();
}
}
}
return;
}
if (ar->getPhase() == AnalysisResult::AnalyzeFinal) {
// closure function's variable table (not containing function's)
VariableTablePtr variables = m_func->getFunctionScope()->getVariables();
for (int i = 0; i < m_vars->getCount(); i++) {
ParameterExpressionPtr param =
dynamic_pointer_cast<ParameterExpression>((*m_vars)[i]);
string name = param->getName();
// so we can assign values to them, instead of seeing CVarRef
Symbol *sym = variables->getSymbol(name);
if (sym && sym->isParameter()) {
sym->setLvalParam();
}
}
}
}
}
void ClassVariable::addTraitPropsToScope(AnalysisResultPtr ar,
ClassScopePtr scope) {
ModifierExpressionPtr modifiers = scope->setModifiers(m_modifiers);
VariableTablePtr variables = scope->getVariables();
for (int i = 0; i < m_declaration->getCount(); i++) {
ExpressionPtr exp = (*m_declaration)[i];
SimpleVariablePtr var;
ExpressionPtr value;
if (exp->is(Expression::KindOfAssignmentExpression)) {
AssignmentExpressionPtr assignment =
dynamic_pointer_cast<AssignmentExpression>(exp);
var = dynamic_pointer_cast<SimpleVariable>(assignment->getVariable());
value = assignment->getValue();
} else {
var = dynamic_pointer_cast<SimpleVariable>(exp);
value = makeConstant(ar, "null");
}
const string &name = var->getName();
Symbol *sym;
ClassScopePtr prevScope = variables->isPresent(name) ? scope :
scope->getVariables()->findParent(ar, name, sym);
if (prevScope &&
!isEquivRedecl(name, exp, m_modifiers,
prevScope->getVariables()->getSymbol(name))) {
Compiler::Error(Compiler::DeclaredVariableTwice, exp);
m_declaration->removeElement(i--);
} else {
if (prevScope != scope) { // Property is new or override, so add it
variables->add(name, Type::Variant, false, ar, exp, m_modifiers);
variables->getSymbol(name)->setValue(exp);
variables->setClassInitVal(name, value);
variables->markOverride(ar, name);
} else {
m_declaration->removeElement(i--);
}
}
}
scope->setModifiers(modifiers);
}
void ParameterExpression::outputCPPImpl(CodeGenerator &cg,
AnalysisResultPtr ar) {
FunctionScopePtr func = getFunctionScope();
VariableTablePtr variables = func->getVariables();
Symbol *sym = variables->getSymbol(m_name);
assert(sym && sym->isParameter());
bool inHeader = cg.isFileOrClassHeader();
cg.setFileOrClassHeader(true);
CodeGenerator::Context context = cg.getContext();
bool typedWrapper = (context == CodeGenerator::CppTypedParamsWrapperImpl ||
context == CodeGenerator::CppTypedParamsWrapperDecl);
TypePtr paramType =
typedWrapper && func->getParamTypeSpec(sym->getParameterIndex()) ?
Type::Variant : func->getParamType(sym->getParameterIndex());
bool wrapper = typedWrapper ||
context == CodeGenerator::CppFunctionWrapperImpl ||
context == CodeGenerator::CppFunctionWrapperDecl;
bool isCVarRef = false;
const char *prefix = "";
if (m_ref) {
cg_printf("VRefParam");
if (!wrapper) {
prefix = "r";
}
} else if (wrapper ||
(!variables->isLvalParam(m_name) &&
!variables->getAttribute(VariableTable::ContainsDynamicVariable) &&
!variables->getAttribute(VariableTable::ContainsExtract))) {
if (paramType->is(Type::KindOfVariant) ||
paramType->is(Type::KindOfSome)) {
cg_printf("CVarRef");
isCVarRef = true;
}
else if (paramType->is(Type::KindOfArray)) cg_printf("CArrRef");
else if (paramType->is(Type::KindOfString)) cg_printf("CStrRef");
else paramType->outputCPPDecl(cg, ar, getScope());
} else {
paramType->outputCPPDecl(cg, ar, getScope());
}
cg_printf(" %s%s%s",
prefix, Option::VariablePrefix,
CodeGenerator::FormatLabel(m_name).c_str());
if (m_defaultValue && sym->getParameterIndex() >= func->getMinParamCount()) {
bool comment = context == CodeGenerator::CppTypedParamsWrapperImpl ||
context == CodeGenerator::CppFunctionWrapperImpl ||
context == CodeGenerator::CppImplementation ||
(context == CodeGenerator::CppDeclaration && func->isInlined());
if (comment) {
cg_printf(" // ");
}
cg_printf(" = ");
ConstantExpressionPtr con =
dynamic_pointer_cast<ConstantExpression>(m_defaultValue);
bool done = false;
if (con && con->isNull()) {
done = true;
if (isCVarRef) {
cg_printf("null_variant");
} else if (paramType->is(Type::KindOfVariant) ||
paramType->is(Type::KindOfSome)) {
cg_printf("null");
} else if (paramType->is(Type::KindOfObject)) {
cg_printf("Object()");
} else if (paramType->is(Type::KindOfArray)) {
cg_printf("Array()");
} else if (paramType->is(Type::KindOfString)) {
cg_printf("String()");
} else {
done = false;
}
}
if (!done) {
if (comment) {
cg.setContext(CodeGenerator::CppParameterDefaultValueImpl);
} else {
cg.setContext(CodeGenerator::CppParameterDefaultValueDecl);
}
bool isScalar = m_defaultValue->isScalar();
if (isCVarRef && isScalar) {
ASSERT(!cg.hasScalarVariant());
cg.setScalarVariant();
}
m_defaultValue->outputCPP(cg, ar);
if (isCVarRef && isScalar) cg.clearScalarVariant();
ASSERT(!cg.hasScalarVariant());
cg.setContext(context);
}
if (comment) {
cg_printf("\n");
}
}
cg.setFileOrClassHeader(inHeader);
}
void ParameterExpression::outputCPPImpl(CodeGenerator &cg,
AnalysisResultPtr ar) {
FunctionScopePtr func = getFunctionScope();
VariableTablePtr variables = func->getVariables();
Symbol *sym = variables->getSymbol(m_name);
assert(sym && sym->isParameter());
CodeGenerator::Context context = cg.getContext();
bool typedWrapper = (context == CodeGenerator::CppTypedParamsWrapperImpl ||
context == CodeGenerator::CppTypedParamsWrapperDecl);
TypePtr paramType =
typedWrapper && func->getParamTypeSpec(sym->getParameterIndex()) ?
Type::Variant : func->getParamType(sym->getParameterIndex());
bool isCVarRef = false;
if (cg.getContext() == CodeGenerator::CppStaticMethodWrapper ||
typedWrapper ||
(!variables->isLvalParam(m_name) &&
!variables->getAttribute(VariableTable::ContainsDynamicVariable) &&
!variables->getAttribute(VariableTable::ContainsExtract) &&
!m_ref)) {
if (paramType->is(Type::KindOfVariant) ||
paramType->is(Type::KindOfSome)) {
cg_printf("CVarRef");
isCVarRef = true;
}
else if (paramType->is(Type::KindOfArray)) cg_printf("CArrRef");
else if (paramType->is(Type::KindOfString)) cg_printf("CStrRef");
else paramType->outputCPPDecl(cg, ar, getScope());
} else {
paramType->outputCPPDecl(cg, ar, getScope());
}
cg_printf(" %s%s", Option::VariablePrefix, m_name.c_str());
if (m_defaultValue && sym->getParameterIndex() >= func->getMinParamCount()) {
bool comment = context == CodeGenerator::CppTypedParamsWrapperImpl ||
context == CodeGenerator::CppImplementation ||
(context == CodeGenerator::CppDeclaration && func->isInlined());
if (comment) {
cg_printf(" // ");
}
cg_printf(" = ");
ConstantExpressionPtr con =
dynamic_pointer_cast<ConstantExpression>(m_defaultValue);
if (isCVarRef && con && con->isNull()) {
cg_printf("null_variant");
} else {
if (comment) {
cg.setContext(CodeGenerator::CppParameterDefaultValueImpl);
} else {
cg.setContext(CodeGenerator::CppParameterDefaultValueDecl);
}
m_defaultValue->outputCPP(cg, ar);
cg.setContext(context);
}
if (comment) {
cg_printf("\n");
}
}
}
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();
Symbol *cont = variables->getSymbol(CONTINUATION_OBJECT_NAME);
cont->setHidden();
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 (funcScope->isSepExtension() ||
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();
}
}
}
}