Package net.hydromatic.morel.ast

Class Ast.Aggregate

java.lang.Object

net.hydromatic.morel.ast.AstNode

net.hydromatic.morel.ast.Ast.Aggregate

Enclosing class:

Ast

public static class Ast.Aggregate
extends AstNode

Call to an aggregate function in a compute clause.

For example, in compute sumId = sum of #id e, aggregate is "sum", argument is "#id e", and id is "sumId".

Field Summary

Fields

Modifier and Type	Field	Description
final Ast.Exp	aggregate
final Ast.Exp	argument
final Ast.Id	id

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

op, pos

Constructor Summary

Constructors

Constructor	Description
Aggregate(Pos pos, Ast.Exp aggregate, @Nullable Ast.Exp argument, Ast.Id id)

Method Summary

Modifier and Type	Method	Description
AstNode	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.
void	accept(Visitor visitor)	Accepts a visitor, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.
Ast.Aggregate	copy(Ast.Exp aggregate, Ast.Exp argument, Ast.Id id)
(package private) AstWriter	unparse(AstWriter w, int left, int right)

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

toString, unparse

Methods inherited from class java.lang.Object

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

Field Details

aggregate

public final Ast.Exp aggregate

argument

public final Ast.Exp argument

id

public final Ast.Id id

Constructor Details

Aggregate

Aggregate(Pos pos,
 Ast.Exp aggregate,
 @Nullable Ast.Exp argument,
 Ast.Id id)

Method Details

unparse

AstWriter unparse(AstWriter w,
 int left,
 int right)

Specified by:

unparse in class AstNode

accept

public AstNode 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 AstNode

accept

public void accept(Visitor visitor)

Description copied from class: AstNode

Accepts a visitor, 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 AstNode

copy

public Ast.Aggregate copy(Ast.Exp aggregate,
 Ast.Exp argument,
 Ast.Id id)