Record Class PipelineVarPlan

java.lang.Object

java.lang.Record

org.ek9lang.compiler.phase7.generator.PipelineVarPlan

record PipelineVarPlan(List<String> varAt, List<ISymbol> typeAt)
extends Record

Per-stage-boundary item variable plan. varAt[k]/typeAt[k] describe the pipeline item entering stage k; index stages.size() is what the terminal consumes.

A single fixed-type item variable cannot be reused across a type-changing stage (e.g. flatten: List of T -> T, or map when input != output type) — storing the produced type back into a variable declared at the consumed type confuses the JVM verifier at loop/merge points (and miscompiles in LLVM). Each type-changing stage therefore writes a fresh variable declared at its produced type; type-preserving stages reuse the same variable (no IR churn).

Constructor Summary

Constructors

Constructor	Description
PipelineVarPlan(List<String> varAt, List<ISymbol> typeAt)	Creates an instance of a PipelineVarPlan record class.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
(package private) ISymbol	finalType()
(package private) String	finalVar()
final int	hashCode()	Returns a hash code value for this object.
(package private) ISymbol	inType(int stageIndex)
(package private) String	inVar(int stageIndex)
(package private) String	outVar(int stageIndex)
(package private) static PipelineVarPlan	single(String var, ISymbol type, int stageCount)
final String	toString()	Returns a string representation of this record class.
List<ISymbol>	typeAt()	Returns the value of the typeAt record component.
List<String>	varAt()	Returns the value of the varAt record component.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

PipelineVarPlan

PipelineVarPlan(List<String> varAt,
 List<ISymbol> typeAt)

Creates an instance of a PipelineVarPlan record class.

Parameters:

varAt - the value for the varAt record component

typeAt - the value for the typeAt record component

Method Details

finalVar

String finalVar()

finalType

ISymbol finalType()

inVar

String inVar(int stageIndex)

outVar

String outVar(int stageIndex)

inType

ISymbol inType(int stageIndex)

single

static PipelineVarPlan single(String var,
 ISymbol type,
 int stageCount)

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

varAt

public List<String> varAt()

Returns the value of the varAt record component.

Returns:

the value of the varAt record component

typeAt

public List<ISymbol> typeAt()

Returns the value of the typeAt record component.

Returns:

the value of the typeAt record component