Class UnboxPrototype

A prototype for instructions that unbox boxed value types. Unbox instructions take box pointers and turn them into reference pointers to their contents.

Inheritance
System.Object
InstructionPrototype
UnboxPrototype
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Flame.Compiler.Instructions
Assembly: Flame.Compiler.dll
Syntax
public sealed class UnboxPrototype : InstructionPrototype

Properties

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ElementType

Gets the type of value to unbox.

Declaration
public IType ElementType { get; }
Property Value
Type Description
IType
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ParameterCount

Gets the number of arguments this instruction takes when instantiated.

Declaration
public override int ParameterCount { get; }
Property Value
Type Description
System.Int32

The number of arguments this instruction takes.
Overrides
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ResultType

Gets the type of value produced instantiations of this prototype.

Declaration
public override IType ResultType { get; }
Property Value
Type Description
IType

A type of value.
Overrides

Methods

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CheckConformance(Instruction, MethodBody)

Checks if a particular instance of this prototype conforms to the rules for this instruction prototype.

Declaration
public override IReadOnlyList<string> CheckConformance(Instruction instance, MethodBody body)
Parameters
Type Name Description
Instruction instance

An instance of this prototype.
MethodBody body

The method body that defines the instruction.
Returns
Type Description
System.Collections.Generic.IReadOnlyList<System.String>

A list of conformance errors in the instruction.
Overrides
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Create(IType)

Gets the unbox instruction prototype for a particular result type.

Declaration
public static UnboxPrototype Create(IType elementType)
Parameters
Type Name Description
IType elementType

The type of the unboxed value to produce.
Returns
Type Description
UnboxPrototype

A unbox instruction prototype.
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GetBoxPointer(Instruction)

Gets the box pointer that is unboxed by an instance of this prototype.

Declaration
public ValueTag GetBoxPointer(Instruction instruction)
Parameters
Type Name Description
Instruction instruction

An instruction that conforms to this prototype.
Returns
Type Description
ValueTag

The box pointer.
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Instantiate(ValueTag)

Instantiates this unbox instruction prototype.

Declaration
public Instruction Instantiate(ValueTag value)
Parameters
Type Name Description
ValueTag value

A box pointer to unbox.
Returns
Type Description
Instruction

An unbox instruction.
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Map(MemberMapping)

Applies a member mapping to this instruction prototype.

Declaration
public override InstructionPrototype Map(MemberMapping mapping)
Parameters
Type Name Description
MemberMapping mapping

A member mapping.
Returns
Type Description
InstructionPrototype

A transformed instruction prototype.
Overrides