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com.sun.tools.javac.comp

public Class TreeHasher

extends TreeScanner
Class Inheritance
Imports
com.sun.tools.javac.code.Symbol, .Types, com.sun.tools.javac.jvm.PoolConstant, com.sun.tools.javac.tree.JCTree, .JCTree.JCClassDecl, .JCTree.JCFieldAccess, .JCTree.JCIdent, .JCTree.JCLiteral, .JCTree.JCVariableDecl, .TreeInfo, .TreeScanner, java.util.Collection, .HashMap, .Map, .Objects
A tree visitor that computes a hash code.

Field Summary

Modifier and TypeField and Description
private int
result

private final Map<Symbol, Integer>
symbolHashes

private final Types
types

Constructor Summary

AccessConstructor and Description
public
TreeHasher(Types types, Map<Symbol, Integer> symbolHashes)

Method Summary

Modifier and TypeMethod and Description
public static int
hash(Types types, JCTree tree, Collection<? extends Symbol> symbols)

private void
hash(Object object)

private void
hashSymbol(Symbol sym)

public void
scan(JCTree tree)

Overrides com.sun.tools.javac.tree.TreeScanner.scan.

Visitor method: Scan a single node.

public void
visitClassDef(JCTree.JCClassDecl tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitClassDef.

public void
visitIdent(JCTree.JCIdent tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitIdent.

public void
visitLiteral(JCTree.JCLiteral tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitLiteral.

public void
visitSelect(JCTree.JCFieldAccess tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitSelect.

public void
visitVarDef(JCTree.JCVariableDecl tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitVarDef.

Inherited from com.sun.tools.javac.tree.TreeScanner:
scanvisitAnnotatedTypevisitAnnotationvisitAnyPatternvisitApplyvisitAssertvisitAssignvisitAssignopvisitBinaryvisitBindingPatternvisitBlockvisitBreakvisitCasevisitCatchvisitConditionalvisitConstantCaseLabelvisitContinuevisitDefaultCaseLabelvisitDoLoopvisitErroneousvisitExecvisitExportsvisitForeachLoopvisitForLoopvisitIfvisitImportvisitIndexedvisitLabelledvisitLambdavisitLetExprvisitMethodDefvisitModifiersvisitModuleDefvisitModuleImportvisitNewArrayvisitNewClassvisitOpensvisitPackageDefvisitParensvisitPatternCaseLabelvisitProvidesvisitRecordPatternvisitReferencevisitRequiresvisitReturnvisitSkipvisitSwitchvisitSwitchExpressionvisitSynchronizedvisitThrowvisitTopLevelvisitTreevisitTryvisitTypeApplyvisitTypeArrayvisitTypeBoundKindvisitTypeCastvisitTypeIdentvisitTypeIntersectionvisitTypeParametervisitTypeTestvisitTypeUnionvisitUnaryvisitUsesvisitVarTypevisitWhileLoopvisitWildcardvisitYield

Field Detail

resultback to summary
private int result
symbolHashesback to summary
private final Map<Symbol, Integer> symbolHashes
typesback to summary
private final Types types

Constructor Detail

TreeHasherback to summary
public TreeHasher(Types types, Map<Symbol, Integer> symbolHashes)

Method Detail

hashback to summary
public static int hash(Types types, JCTree tree, Collection<? extends Symbol> symbols)
hashback to summary
private void hash(Object object)
hashSymbolback to summary
private void hashSymbol(Symbol sym)
scanback to summary
public void scan(JCTree tree)

Overrides com.sun.tools.javac.tree.TreeScanner.scan.

Doc from com.sun.tools.javac.tree.TreeScanner.scan.

Visitor method: Scan a single node.

Annotations
@Override
visitClassDefback to summary
public void visitClassDef(JCTree.JCClassDecl tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitClassDef.

Annotations
@Override
visitIdentback to summary
public void visitIdent(JCTree.JCIdent tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitIdent.

Annotations
@Override
visitLiteralback to summary
public void visitLiteral(JCTree.JCLiteral tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitLiteral.

Annotations
@Override
visitSelectback to summary
public void visitSelect(JCTree.JCFieldAccess tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitSelect.

Annotations
@Override
visitVarDefback to summary
public void visitVarDef(JCTree.JCVariableDecl tree)

Overrides com.sun.tools.javac.tree.TreeScanner.visitVarDef.

Annotations
@Override