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#ifndef _IDLC_ASTUNION_HXX_
#define _IDLC_ASTUNION_HXX_

#include <idlc/aststruct.hxx>
#include <idlc/astunionbranch.hxx>

class AstUnion : public AstStruct
{
public:
	AstUnion(const ::rtl::OString& name, AstType* pDiscType, AstScope* pScope);
	virtual ~AstUnion();

	AstType* getDiscrimantType()
		{ return m_pDiscriminantType; }
	ExprType getDiscrimantExprType()
		{ return m_discExprType; }

	virtual sal_Bool dump(RegistryKey& rKey);

	virtual AstDeclaration* addDeclaration(AstDeclaration* pDecl);
protected:
	// Look up a branch by node pointer
	AstUnionBranch* lookupBranch(AstUnionBranch* pBranch);

	// Look up the branch with the "default" label
	AstUnionBranch* lookupDefault(sal_Bool bReportError = sal_True );

	// Look up a branch given a branch with a label. This is used to
	// check for duplicate labels
	AstUnionBranch* lookupLabel(AstUnionBranch* pBranch);

	// Look up a union branch given an enumerator. This is used to
	// check for duplicate enum labels
	AstUnionBranch* lookupEnum(AstUnionBranch* pBranch);

private:
	AstType* 	m_pDiscriminantType;
	ExprType	m_discExprType;
};

#endif // _IDLC_ASTUNION_HXX_

