Package org.sonar.java.model

Class SyntacticEquivalence

java.lang.Object

org.sonar.java.model.SyntacticEquivalence

public final class SyntacticEquivalence
extends Object

Method Summary

Modifier and Type	Method	Description
static boolean	areEquivalent(List<? extends Tree> leftList, List<? extends Tree> rightList)
static boolean	areEquivalent(List<? extends Tree> leftList, List<? extends Tree> rightList, BiPredicate<JavaTree,JavaTree> permissiveEquivalence)
static boolean	areEquivalent(Tree leftNode, Tree rightNode)
static boolean	areEquivalentIncludingSameVariables(Tree left, Tree right)	Syntactic equivalence with additional semantic equivalence for identifiers.
static boolean	areSemanticallyEquivalent(List<? extends Tree> leftList, List<? extends Tree> rightList)	Syntactic equivalence with additional semantic equivalence for methods calls.

Methods inherited from class java.lang.Object

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

Method Details

areEquivalent

public static boolean areEquivalent(@Nullable
 Tree leftNode,
 @Nullable
 Tree rightNode)

Returns:

true, if nodes are syntactically equivalent

areEquivalent

public static boolean areEquivalent(List<? extends Tree> leftList,
 List<? extends Tree> rightList)

Returns:

true, if nodes are syntactically equivalent

areEquivalent

public static boolean areEquivalent(List<? extends Tree> leftList,
 List<? extends Tree> rightList,
 BiPredicate<JavaTree,JavaTree> permissiveEquivalence)

Returns:

true, if nodes are syntactically equivalent Use permissiveEquivalence to force the equivalence of two nodes

areSemanticallyEquivalent

public static boolean areSemanticallyEquivalent(List<? extends Tree> leftList,
 List<? extends Tree> rightList)

Syntactic equivalence with additional semantic equivalence for methods calls. Two methods calls are equivalent only if they have the same signature; if the types of the arguments are the same.

Returns:

true, if nodes are syntactically and semantically equivalent.

areEquivalentIncludingSameVariables

public static boolean areEquivalentIncludingSameVariables(Tree left,
 Tree right)

Syntactic equivalence with additional semantic equivalence for identifiers. Two identifiers are equivalent only if they refer to the same known symbol.

Returns:

true, if nodes are syntactically equivalent and their variables refer to the same symbols.