Package org.codehaus.groovy.classgen

Class VerifierCodeVisitor

java.lang.Object

org.codehaus.groovy.ast.CodeVisitorSupport

org.codehaus.groovy.classgen.VerifierCodeVisitor

All Implemented Interfaces:

GroovyCodeVisitor

public class VerifierCodeVisitor
extends CodeVisitorSupport

Performs various checks on code inside methods and constructors including checking for valid field, variables names etc. that would otherwise lead to invalid code.

Constructor Summary

Constructors

Constructor	Description
VerifierCodeVisitor(ClassNode classNode)	Creates a new verifier code visitor for the given class.

Method Summary

Modifier and Type	Method	Description
static void	assertValidIdentifier(String name, String message, ASTNode node)	Verifies that the supplied name is a valid Java identifier.
void	visitConstructorCallExpression(ConstructorCallExpression call)	Visits a ConstructorCallExpression, traversing its argument list.
void	visitFieldExpression(FieldExpression expression)	Visits a FieldExpression.
void	visitForLoop(ForStatement statement)	Visits a ForStatement, traversing the collection expression and loop body.
void	visitListExpression(ListExpression expression)	Visits a ListExpression, traversing all contained expressions.
void	visitVariableExpression(VariableExpression expression)	Visits a VariableExpression.

Methods inherited from class org.codehaus.groovy.ast.CodeVisitorSupport

afterSwitchCaseStatementsVisited, afterSwitchConditionExpressionVisited, visitArgumentlistExpression, visitArrayExpression, visitAssertStatement, visitAttributeExpression, visitBinaryExpression, visitBitwiseNegationExpression, visitBlockStatement, visitBooleanExpression, visitBreakStatement, visitBytecodeExpression, visitCaseStatement, visitCastExpression, visitCatchStatement, visitClassExpression, visitClosureExpression, visitClosureListExpression, visitConstantExpression, visitContinueStatement, visitDeclarationExpression, visitDoWhileLoop, visitEmptyStatement, visitExpressionStatement, visitGStringExpression, visitIfElse, visitLambdaExpression, visitMapEntryExpression, visitMapExpression, visitMethodCallExpression, visitMethodPointerExpression, visitMethodReferenceExpression, visitNotExpression, visitPostfixExpression, visitPrefixExpression, visitPropertyExpression, visitRangeExpression, visitReturnStatement, visitShortTernaryExpression, visitSpreadExpression, visitSpreadMapExpression, visitStaticMethodCallExpression, visitSwitch, visitSynchronizedStatement, visitTernaryExpression, visitThrowStatement, visitTryCatchFinally, visitTupleExpression, visitUnaryMinusExpression, visitUnaryPlusExpression, visitWhileLoop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.codehaus.groovy.ast.GroovyCodeVisitor

visit, visit, visitEmptyExpression, visitListOfExpressions

Constructor Details

VerifierCodeVisitor

public VerifierCodeVisitor(ClassNode classNode)

Creates a new verifier code visitor for the given class.

Parameters:

classNode - the class node being verified

Method Details

visitForLoop

public void visitForLoop(ForStatement statement)

Visits a ForStatement, traversing the collection expression and loop body.

Specified by:

visitForLoop in interface GroovyCodeVisitor

Overrides:

visitForLoop in class CodeVisitorSupport

Parameters:

statement - the for loop statement

visitFieldExpression

public void visitFieldExpression(FieldExpression expression)

Visits a FieldExpression. No traversal is performed as field expressions contain no child expressions.

Specified by:

visitFieldExpression in interface GroovyCodeVisitor

Overrides:

visitFieldExpression in class CodeVisitorSupport

Parameters:

expression - the field expression

visitVariableExpression

public void visitVariableExpression(VariableExpression expression)

Visits a VariableExpression. No traversal is performed as variable expressions contain no child expressions.

Specified by:

visitVariableExpression in interface GroovyCodeVisitor

Overrides:

visitVariableExpression in class CodeVisitorSupport

Parameters:

expression - the variable expression

visitListExpression

public void visitListExpression(ListExpression expression)

Visits a ListExpression, traversing all contained expressions.

Specified by:

visitListExpression in interface GroovyCodeVisitor

Overrides:

visitListExpression in class CodeVisitorSupport

Parameters:

expression - the list expression

visitConstructorCallExpression

public void visitConstructorCallExpression(ConstructorCallExpression call)

Visits a ConstructorCallExpression, traversing its argument list.

Specified by:

visitConstructorCallExpression in interface GroovyCodeVisitor

Overrides:

visitConstructorCallExpression in class CodeVisitorSupport

Parameters:

call - the constructor call expression

assertValidIdentifier

public static void assertValidIdentifier(String name,
 String message,
 ASTNode node)

Verifies that the supplied name is a valid Java identifier.

Parameters:

name - the identifier text to validate

message - the error context to include in failures

node - the node to associate with any parse error