com.asakusafw.dmdl.model

Interface AstNode

All Known Subinterfaces:

AstAttributeValue, AstExpression<T>, AstName, AstRecord, AstTerm<T>, AstType

All Known Implementing Classes:

AbstractAstNode, AstAttribute, AstAttributeElement, AstAttributeValueArray, AstAttributeValueMap, AstBasicType, AstCollectionType, AstDescription, AstGrouping, AstJoin, AstLiteral, AstModelDefinition, AstModelFolding, AstModelMapping, AstModelReference, AstPropertyDefinition, AstPropertyFolding, AstPropertyMapping, AstQualifiedName, AstRecordDefinition, AstReferenceType, AstScript, AstSequenceType, AstSimpleName, AstSummarize, AstUnionExpression

public interface AstNode

A top level interface of each AST model.

Since:

0.2.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	AstNode.AbstractVisitor<C,R> Default implementation of AstNode.Visitor, which all declared methods returns just null.
static interface	AstNode.Visitor<C,R> Visitor of AstNode.

Method Summary

Modifier and Type	Method and Description
<C,R> R	accept(C context, AstNode.Visitor<C,R> visitor) Accepts and calls back the visitor.
Region	getRegion() Returns the region of this node.

Method Detail

getRegion

Region getRegion()

Returns the region of this node.

Returns:

the region, or null if unknown

accept

<C,R> R accept(C context,
               AstNode.Visitor<C,R> visitor)

Accepts and calls back the visitor.

Type Parameters:

C - type of visitor context

R - type of visitor result

Parameters:

context - the visitor context

visitor - the visitor to call back

Returns:

call back result

Throws:

IllegalArgumentException - if visitor was null