interface.hpp File Reference

Abstract interfaces for runtime polymorphic handling of dimensional values. More...

#include <dimval/descriptor.hpp>
#include <memory>
#include <string>
#include <vector>

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Classes
class	dimval::IUnitValue
	Polymorphic interface implemented by every UnitValue<U,T>. More...
class	dimval::IMeasureValue
	Polymorphic interface implemented by every MeasureValue<M,T>. More...

Typedefs
using	dimval::IUnitValueUnique = std::unique_ptr< IUnitValue >
	Owning handles to a polymorphic IUnitValue.
using	dimval::IUnitValues = std::vector< IUnitValueShared >
	Convenience aliases for collections of polymorphic values.
using	dimval::IMeasureValueUnique = std::unique_ptr< IMeasureValue >
	Owning handles to a polymorphic IMeasureValue.
using	dimval::IMeasureValues = std::vector< IMeasureValueShared >
	Convenience aliases for collections of polymorphic values.

Detailed Description

Abstract interfaces for runtime polymorphic handling of dimensional values.

IUnitValue and IMeasureValue are pure-virtual base classes implemented by every UnitValue<U,T> / MeasureValue<M,T> template instantiation. They let you store heterogeneous values in std::vector<std::unique_ptr<IUnitValue>> or pass them across an ABI without seeing the concrete unit/measure tags.

The virtual surface is deliberately narrow: only the per-instance state (numeric value, formatted rendering, deep copy) plus the descriptor accessor needed to introspect metadata across the ABI boundary. Per-field metadata (id, symbol, kind, ...) lives as static constexpr accessors on the concrete UnitValue<U,T> / MeasureValue<M,T> templates and is reachable via descriptor() from a polymorphic handle.