Package com.sonar.sslr.api

Interface AstVisitor

All Known Subinterfaces:

AstAndTokenVisitor

All Known Implementing Classes:

CobolAstVisitor, CobolCheck

public interface AstVisitor

Method Summary

Modifier and Type	Method	Description
List<AstNodeType>	getAstNodeTypesToVisit()	The AST node types that this check must be registered for.
void	leaveFile(AstNode ast)	Called once a computation unit tree has been fully visited.
void	leaveNode(AstNode ast)	Called once an AST node has been fully visited.
void	visitFile(AstNode ast)	Called before starting visiting a computation unit tree.
void	visitNode(AstNode ast)	Called to process an AST node whose type has been registered to be visited.

Method Details

getAstNodeTypesToVisit

List<AstNodeType> getAstNodeTypesToVisit()

The AST node types that this check must be registered for.

Returns:

the AST node types this must be registered for.

visitFile

void visitFile(@Nullable
 AstNode ast)

Called before starting visiting a computation unit tree. Ideal place to initialize information that is to be collected while processing the tree.

Parameters:

ast - the root of the tree, or null if no tree

leaveFile

void leaveFile(@Nullable
 AstNode ast)

Called once a computation unit tree has been fully visited. Ideal place to report on information collected while processing a tree.

Parameters:

ast - the root of the tree, or null if no tree

visitNode

void visitNode(AstNode ast)

Called to process an AST node whose type has been registered to be visited.

Parameters:

ast - the AST node to process

leaveNode

void leaveNode(AstNode ast)

Called once an AST node has been fully visited.

Parameters:

ast - the AST node which has been visited