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

object

InstructionPrototype

UnboxPrototype

Inherited Members

InstructionPrototype.Members

InstructionPrototype.Instantiate(IReadOnlyList<ValueTag>)

InstructionPrototype.IsPrototypeOf(Instruction)

InstructionPrototype.AssertIsPrototypeOf(Instruction, string)

InstructionPrototype.AssertIsPrototypeOf(Instruction)

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Flame.Compiler.Instructions

Assembly: Flame.Compiler.dll

Syntax

public sealed class UnboxPrototype : InstructionPrototype

Properties

ElementType

Gets the type of value to unbox.

Declaration

public IType ElementType { get; }

Property Value

Type	Description
IType

ParameterCount

Gets the number of arguments this instruction takes when instantiated.

Declaration

public override int ParameterCount { get; }

Property Value

Type	Description
int	The number of arguments this instruction takes.

Overrides

InstructionPrototype.ParameterCount

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

InstructionPrototype.ResultType

Methods

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
IReadOnlyList<string>	A list of conformance errors in the instruction.

Overrides

InstructionPrototype.CheckConformance(Instruction, MethodBody)

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.

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.

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.

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

InstructionPrototype.Map(MemberMapping)