SumReprProxy

scalus.compiler.sir.lowering.SumCaseClassRepresentation.SumReprProxy

Mutable proxy for self-referential sum representations. Like TypeProxy for SIRType — allows circular references in recursive types (e.g., List tail field references the parent List's SumUplcConstr). Set ref after constructing the real representation.

Attributes

Graph
Supertypes
class Object
trait Matchable
class Any

Members list

Value members

Concrete methods

override def defaultUni(semanticType: SIRType)(using LoweringContext): DefaultUni

The UPLC DefaultUni type for values in this representation.

The UPLC DefaultUni type for values in this representation.

Used to generate correctly-typed nil constants for builtin lists.

Value parameters

semanticType

the high-level SIR type (e.g., Integer, List[BigInt])

Attributes

Returns

the DefaultUni type (e.g., DefaultUni.Integer for Constant, DefaultUni.Data for PackedData)

Definition Classes
override def doc: Doc

Attributes

Definition Classes
override def isCompatibleOn(tp: SIRType, repr: LoweredValueRepresentation, pos: SIRPosition)(using lctx: LoweringContext): Boolean

Attributes

Definition Classes
override def isCompatibleWithType(tp: SIRType)(using LoweringContext): Boolean

Attributes

Definition Classes
override def stableKeyInternal(seen: Set[SumReprProxy]): String

Cycle-detecting delegation to ref. seen tracks proxy instances (identity-keyed via default equals/hashCode) already being rendered on this call stack; on revisit, emit SumProxy(cycle) as the stable placeholder — the common case for self-recursive types like List's tail field.

Cycle-detecting delegation to ref. seen tracks proxy instances (identity-keyed via default equals/hashCode) already being rendered on this call stack; on revisit, emit SumProxy(cycle) as the stable placeholder — the common case for self-recursive types like List's tail field.

Attributes

Definition Classes

Inherited methods

def show: String

Attributes

Inherited from:
LoweredValueRepresentation
final def stableKey: String

Stable structural key for use as cache-key / identifier-suffix. Two structurally-equal representations return equal stableKey strings.

Stable structural key for use as cache-key / identifier-suffix. Two structurally-equal representations return equal stableKey strings.

Distinct from toString: for SumReprProxy the default Object.toString returns ClassName@HEX (identity-based), leaking proxy-instance identity into any key that embeds the repr rendering (e.g. LoweringEq's sumEq helper cache, UPLC var-name derivation). Use stableKey there instead.

Implemented in terms of stableKeyInternal which threads a seen set through the recursion so self-referential SumReprProxy produces SumProxy(cycle) as a stable placeholder. Override stableKeyInternal in every subclass that recursively contains a LoweredValueRepresentation field so the seen set is propagated.

Attributes

Inherited from:
LoweredValueRepresentation
def uplcType(semanticType: SIRType)(using LoweringContext): SIRType

The SIR type that values actually have at the UPLC level for this representation.

The SIR type that values actually have at the UPLC level for this representation.

Value parameters

semanticType

the high-level SIR type (e.g., Integer, List[BigInt])

Attributes

Returns

the UPLC-level SIR type (e.g., Integer for Constant, Data for PackedData)

Inherited from:
LoweredValueRepresentation

Concrete fields

Inherited fields

override val isDataCentric: Boolean

Attributes

Inherited from:
SumCaseClassRepresentation
override val isPackedData: Boolean

Attributes

Inherited from:
SumCaseClassRepresentation