size_t UnionDeclaration::getSize() const {
size_t sz = 0;
VariableDeclaration *vd;
for(int i = 0; i < members.size(); i++){
vd = members[i]->variableDeclaration();
if(vd->getType()->getSize() > sz)
sz = vd->getType()->getSize();
}
return sz;
}
size_t UserTypeDeclaration::getAlign() const {
size_t align = 0;
VariableDeclaration *vd;
for(int i = 0; i < members.size(); i++){
vd = members[i]->variableDeclaration();
assert(vd && "expected variable decl, found something else");
if(vd->getType()->getAlign() > align)
align = vd->getType()->getAlign();
}
if(align == 0) return 1; // TODO: empty struct, bad!
return align; //TODO: handle packed
}
size_t ClassDeclaration::getSize() const {
size_t sz = base ? base->getDeclaredType()->getSize() : 0;
VariableDeclaration *vd;
unsigned align = base ? 8 : 1; //TODO: proper padding past base?
if(sz % align) sz += (align - (sz % align));
for(int i = 0; i < members.size(); i++) {
vd = members[i]->variableDeclaration();
if(!vd) continue;
align = vd->getType()->getAlign();
if(sz % align)
sz += (align - (sz % align));
//reference types treated as pointers
if(vd->getType()->isReference()) sz += 8;
else sz += vd->type->getSize();
}
return sz;
}
void CompilerContext::addAndInitializeVariable(VariableDeclaration const& _declaration)
{
addVariable(_declaration);
unsigned const size = _declaration.getType()->getSizeOnStack();
for (unsigned i = 0; i < size; ++i)
*this << u256(0);
m_asm.adjustDeposit(-size);
}
size_t StructDeclaration::getSize() const {
size_t sz = 0;
VariableDeclaration *vd;
unsigned align;
for(int i = 0; i < members.size(); i++) {
vd = members[i]->variableDeclaration();
if(!vd) continue;
align = vd->getType()->getAlign();
if(!packed && sz % align)
sz += (align - (sz % align));
sz += vd->type->getSize();
}
return sz;
}
void CompilerContext::addVariable(VariableDeclaration const& _declaration)
{
m_localVariables[&_declaration] = m_localVariablesSize;
m_localVariablesSize += _declaration.getType()->getSizeOnStack();
}
void CompilerContext::addStateVariable(VariableDeclaration const& _declaration)
{
m_stateVariables[&_declaration] = m_stateVariablesSize;
m_stateVariablesSize += _declaration.getType()->getStorageSize();
}
void Compiler::appendStackVariableInitialisation(VariableDeclaration const& _variable)
{
CompilerContext::LocationSetter location(m_context, _variable);
m_context.addVariable(_variable);
CompilerUtils(m_context).pushZeroValue(*_variable.getType());
}