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#pragma once
#include "Variable.h"
#include "Code/TypeDesc.h"
namespace storm {
STORM_PKG(core.lang);
/**
* Layout of variables inside a type.
*
* Currently, allocates the types in the order they were added to the layout, but in the future
* it is probably desirable to order the members in increasing size or similar to compact the
* layout as much as possible while keeping alignment requirements.
*/
class Layout : public ObjectOn<Compiler> {
STORM_CLASS;
public:
// Create.
STORM_CTOR Layout();
// Add a variable to the layout.
void STORM_FN add(MemberVar *var, Type *into);
void STORM_FN add(Named *n, Type *into);
// Lay out all variables in memory. Returns the total size of the creation.
Size STORM_FN doLayout(Size parentSize);
// Fill in a GcType for the current layout.
// If 'into' is null, we only compute how many entries we need.
// 'parent' may be null.
nat fillGcType(Size parentSize, const GcType *parent, GcType *into);
// Get a list of all member variables.
Array<MemberVar *> *variables();
private:
// All members in here, in the order they are laid out.
Array<MemberVar *> *vars;
};
}
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