Package net.hydromatic.morel.ast

Class Core.NamedPat

java.lang.Object

net.hydromatic.morel.ast.AstNode

net.hydromatic.morel.ast.Core.BaseNode

net.hydromatic.morel.ast.Core.Pat

net.hydromatic.morel.ast.Core.NamedPat

All Implemented Interfaces:

Comparable<Core.NamedPat>

Direct Known Subclasses:

Core.AsPat, Core.IdPat

Enclosing class:

Core

public abstract static class Core.NamedPat
extends Core.Pat
implements Comparable<Core.NamedPat>

Base class for named patterns (Core.IdPat and Core.AsPat).

Implements Comparable so that names are sorted correctly for record fields (see RecordType.ORDERING).

A Core.ValDecl must be one of these.

Field Summary

Fields

Modifier and Type	Field	Description
final int	i
final String	name
static final com.google.common.collect.Ordering<Core.NamedPat>	ORDERING	Ordering that compares named patterns by their names, then by their ordinal.

Fields inherited from class net.hydromatic.morel.ast.Core.Pat

type

Fields inherited from class net.hydromatic.morel.ast.AstNode

op, pos

Constructor Summary

Constructors

Constructor	Description
NamedPat(Op op, Type type, String name, int i)

Method Summary

Modifier and Type	Method	Description
abstract Core.NamedPat	accept(Shuttle shuttle)	Accepts a shuttle, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.
(package private) static int	compare(Core.NamedPat o1, Core.NamedPat o2)	Helper for ORDERING.
int	compareTo(Core.NamedPat o)
abstract Core.NamedPat	withName(String name)	Returns a copy of this pattern with a given name and ordinal 0; or this pattern if the name is the same.
abstract Core.NamedPat	withType(Type type)	Returns a copy of this pattern with a given type; or this pattern if the type is the same.

Methods inherited from class net.hydromatic.morel.ast.Core.Pat

describe, type

Methods inherited from class net.hydromatic.morel.ast.Core.BaseNode

accept

Methods inherited from class net.hydromatic.morel.ast.AstNode

toString, unparse, unparse

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

ORDERING

public static final com.google.common.collect.Ordering<Core.NamedPat> ORDERING

Ordering that compares named patterns by their names, then by their ordinal.

name

public final String name

i

public final int i

Constructor Details

NamedPat

NamedPat(Op op,
 Type type,
 String name,
 int i)

Method Details

compareTo

public int compareTo(Core.NamedPat o)

Collate first on name, then on ordinal.

Specified by:

compareTo in interface Comparable<Core.NamedPat>

compare

static int compare(Core.NamedPat o1,
 Core.NamedPat o2)

Helper for ORDERING.

withType

public abstract Core.NamedPat withType(Type type)

Returns a copy of this pattern with a given type; or this pattern if the type is the same.

withName

public abstract Core.NamedPat withName(String name)

Returns a copy of this pattern with a given name and ordinal 0; or this pattern if the name is the same.

accept

public abstract Core.NamedPat accept(Shuttle shuttle)

Description copied from class: AstNode

Accepts a shuttle, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.

Specified by:

accept in class Core.Pat