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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package jdk.nashorn.api.tree;
Common interface for all nodes in an abstract syntax tree.
WARNING: This interface and its sub-interfaces are
subject to change as the ECMAScript programming language evolves.
Deprecated: Nashorn JavaScript script engine and APIs, and the jjs tool
are deprecated with the intent to remove them in a future release. Since: 9
/**
* Common interface for all nodes in an abstract syntax tree.
*
* <p><b>WARNING:</b> This interface and its sub-interfaces are
* subject to change as the ECMAScript programming language evolves.
*
* @deprecated Nashorn JavaScript script engine and APIs, and the jjs tool
* are deprecated with the intent to remove them in a future release.
*
* @since 9
*/
@Deprecated(since="11", forRemoval=true)
public interface Tree {
Enumerates all kinds of trees.
Deprecated: Nashorn JavaScript script engine and APIs, and the jjs tool
are deprecated with the intent to remove them in a future release.
/**
* Enumerates all kinds of trees.
*
* @deprecated Nashorn JavaScript script engine and APIs, and the jjs tool
* are deprecated with the intent to remove them in a future release.
*/
@Deprecated(since="11", forRemoval=true)
public enum Kind {
Used for instances of ArrayAccessTree
. /**
* Used for instances of {@link ArrayAccessTree}.
*/
ARRAY_ACCESS(ArrayAccessTree.class),
Used for instances of ArrayLiteralTree
. /**
* Used for instances of {@link ArrayLiteralTree}.
*/
ARRAY_LITERAL(ArrayLiteralTree.class),
Used for instances of AssignmentTree
. /**
* Used for instances of {@link AssignmentTree}.
*/
ASSIGNMENT(AssignmentTree.class),
Used for instances of BlockTree
. /**
* Used for instances of {@link BlockTree}.
*/
BLOCK(BlockTree.class),
Used for instances of BreakTree
. /**
* Used for instances of {@link BreakTree}.
*/
BREAK(BreakTree.class),
Used for instances of ClassDeclarationTree
. /**
* Used for instances of {@link ClassDeclarationTree}.
*/
CLASS(ClassDeclarationTree.class),
Used for instances of ClassExpressionTree
. /**
* Used for instances of {@link ClassExpressionTree}.
*/
CLASS_EXPRESSION(ClassExpressionTree.class),
Used for instances of CaseTree
. /**
* Used for instances of {@link CaseTree}.
*/
CASE(CaseTree.class),
Used for instances of CatchTree
. /**
* Used for instances of {@link CatchTree}.
*/
CATCH(CatchTree.class),
Used for instances of CompilationUnitTree
. /**
* Used for instances of {@link CompilationUnitTree}.
*/
COMPILATION_UNIT(CompilationUnitTree.class),
Used for instances of ConditionalExpressionTree
. /**
* Used for instances of {@link ConditionalExpressionTree}.
*/
CONDITIONAL_EXPRESSION(ConditionalExpressionTree.class),
Used for instances of ContinueTree
. /**
* Used for instances of {@link ContinueTree}.
*/
CONTINUE(ContinueTree.class),
Used for instances of DoWhileLoopTree
. /**
* Used for instances of {@link DoWhileLoopTree}.
*/
DO_WHILE_LOOP(DoWhileLoopTree.class),
Used for instances of DebuggerTree
. /**
* Used for instances of {@link DebuggerTree}.
*/
DEBUGGER(DebuggerTree.class),
Used for instances of ForInLoopTree
. /**
* Used for instances of {@link ForInLoopTree}.
*/
FOR_IN_LOOP(ForInLoopTree.class),
Used for instances of FunctionExpressionTree
. /**
* Used for instances of {@link FunctionExpressionTree}.
*/
FUNCTION_EXPRESSION(FunctionExpressionTree.class),
Used for instances of ErroneousTree
. /**
* Used for instances of {@link ErroneousTree}.
*/
ERROR(ErroneousTree.class),
Used for instances of ExpressionStatementTree
. /**
* Used for instances of {@link ExpressionStatementTree}.
*/
EXPRESSION_STATEMENT(ExpressionStatementTree.class),
Used for instances of MemberSelectTree
. /**
* Used for instances of {@link MemberSelectTree}.
*/
MEMBER_SELECT(MemberSelectTree.class),
Used for instances of ForLoopTree
. /**
* Used for instances of {@link ForLoopTree}.
*/
FOR_LOOP(ForLoopTree.class),
Used for instances of IdentifierTree
. /**
* Used for instances of {@link IdentifierTree}.
*/
IDENTIFIER(IdentifierTree.class),
Used for instances of IfTree
. /**
* Used for instances of {@link IfTree}.
*/
IF(IfTree.class),
Used for instances of InstanceOfTree
. /**
* Used for instances of {@link InstanceOfTree}.
*/
INSTANCE_OF(InstanceOfTree.class),
Used for instances of LabeledStatementTree
. /**
* Used for instances of {@link LabeledStatementTree}.
*/
LABELED_STATEMENT(LabeledStatementTree.class),
Used for instances of ModuleTree
. /**
* Used for instances of {@link ModuleTree}.
*/
MODULE(ModuleTree.class),
Used for instances of ExportEntryTree
. /**
* Used for instances of {@link ExportEntryTree}.
*/
EXPORT_ENTRY(ExportEntryTree.class),
Used for instances of ImportEntryTree
. /**
* Used for instances of {@link ImportEntryTree}.
*/
IMPORT_ENTRY(ImportEntryTree.class),
Used for instances of FunctionDeclarationTree
. /**
* Used for instances of {@link FunctionDeclarationTree}.
*/
FUNCTION(FunctionDeclarationTree.class),
Used for instances of FunctionCallTree
. /**
* Used for instances of {@link FunctionCallTree}.
*/
FUNCTION_INVOCATION(FunctionCallTree.class),
Used for instances of NewTree
. /**
* Used for instances of {@link NewTree}.
*/
NEW(NewTree.class),
Used for instances of ObjectLiteralTree
. /**
* Used for instances of {@link ObjectLiteralTree}.
*/
OBJECT_LITERAL(ObjectLiteralTree.class),
Used for instances of ParenthesizedTree
. /**
* Used for instances of {@link ParenthesizedTree}.
*/
PARENTHESIZED(ParenthesizedTree.class),
Used for instances of PropertyTree
. /**
* Used for instances of {@link PropertyTree}.
*/
PROPERTY(PropertyTree.class),
Used for instances of RegExpLiteralTree
. /**
* Used for instances of {@link RegExpLiteralTree}.
*/
REGEXP_LITERAL(RegExpLiteralTree.class),
Used for instances of TemplateLiteralTree
. /**
* Used for instances of {@link TemplateLiteralTree}.
*/
TEMPLATE_LITERAL(TemplateLiteralTree.class),
Used for instances of ReturnTree
. /**
* Used for instances of {@link ReturnTree}.
*/
RETURN(ReturnTree.class),
Used for instances of EmptyStatementTree
. /**
* Used for instances of {@link EmptyStatementTree}.
*/
EMPTY_STATEMENT(EmptyStatementTree.class),
Used for instances of SwitchTree
. /**
* Used for instances of {@link SwitchTree}.
*/
SWITCH(SwitchTree.class),
Used for instances of ThrowTree
. /**
* Used for instances of {@link ThrowTree}.
*/
THROW(ThrowTree.class),
Used for instances of TryTree
. /**
* Used for instances of {@link TryTree}.
*/
TRY(TryTree.class),
Used for instances of VariableTree
. /**
* Used for instances of {@link VariableTree}.
*/
VARIABLE(VariableTree.class),
Used for instances of WhileLoopTree
. /**
* Used for instances of {@link WhileLoopTree}.
*/
WHILE_LOOP(WhileLoopTree.class),
Used for instances of WithTree
. /**
* Used for instances of {@link WithTree}.
*/
WITH(WithTree.class),
Used for instances of UnaryTree
representing postfix increment operator ++
. /**
* Used for instances of {@link UnaryTree} representing postfix
* increment operator {@code ++}.
*/
POSTFIX_INCREMENT(UnaryTree.class),
Used for instances of UnaryTree
representing postfix decrement operator --
. /**
* Used for instances of {@link UnaryTree} representing postfix
* decrement operator {@code --}.
*/
POSTFIX_DECREMENT(UnaryTree.class),
Used for instances of UnaryTree
representing prefix increment operator ++
. /**
* Used for instances of {@link UnaryTree} representing prefix
* increment operator {@code ++}.
*/
PREFIX_INCREMENT(UnaryTree.class),
Used for instances of UnaryTree
representing prefix decrement operator --
. /**
* Used for instances of {@link UnaryTree} representing prefix
* decrement operator {@code --}.
*/
PREFIX_DECREMENT(UnaryTree.class),
Used for instances of UnaryTree
representing unary plus operator +
. /**
* Used for instances of {@link UnaryTree} representing unary plus
* operator {@code +}.
*/
UNARY_PLUS(UnaryTree.class),
Used for instances of UnaryTree
representing unary minus operator -
. /**
* Used for instances of {@link UnaryTree} representing unary minus
* operator {@code -}.
*/
UNARY_MINUS(UnaryTree.class),
Used for instances of UnaryTree
representing bitwise complement operator ~
. /**
* Used for instances of {@link UnaryTree} representing bitwise
* complement operator {@code ~}.
*/
BITWISE_COMPLEMENT(UnaryTree.class),
Used for instances of UnaryTree
representing logical complement operator !
. /**
* Used for instances of {@link UnaryTree} representing logical
* complement operator {@code !}.
*/
LOGICAL_COMPLEMENT(UnaryTree.class),
Used for instances of UnaryTree
representing logical delete operator delete
. /**
* Used for instances of {@link UnaryTree} representing logical
* delete operator {@code delete}.
*/
DELETE(UnaryTree.class),
Used for instances of UnaryTree
representing logical typeof operator typeof
. /**
* Used for instances of {@link UnaryTree} representing logical
* typeof operator {@code typeof}.
*/
TYPEOF(UnaryTree.class),
Used for instances of UnaryTree
representing logical void operator void
. /**
* Used for instances of {@link UnaryTree} representing logical
* void operator {@code void}.
*/
VOID(UnaryTree.class),
Used for instances of BinaryTree
representing comma ,
. /**
* Used for instances of {@link BinaryTree} representing
* comma {@code ,}.
*/
COMMA(BinaryTree.class),
Used for instances of BinaryTree
representing multiplication *
. /**
* Used for instances of {@link BinaryTree} representing
* multiplication {@code *}.
*/
MULTIPLY(BinaryTree.class),
Used for instances of BinaryTree
representing division /
. /**
* Used for instances of {@link BinaryTree} representing
* division {@code /}.
*/
DIVIDE(BinaryTree.class),
Used for instances of BinaryTree
representing remainder %
. /**
* Used for instances of {@link BinaryTree} representing
* remainder {@code %}.
*/
REMAINDER(BinaryTree.class),
Used for instances of BinaryTree
representing addition or string concatenation +
. /**
* Used for instances of {@link BinaryTree} representing
* addition or string concatenation {@code +}.
*/
PLUS(BinaryTree.class),
Used for instances of BinaryTree
representing subtraction -
. /**
* Used for instances of {@link BinaryTree} representing
* subtraction {@code -}.
*/
MINUS(BinaryTree.class),
Used for instances of BinaryTree
representing left shift <<
. /**
* Used for instances of {@link BinaryTree} representing
* left shift {@code <<}.
*/
LEFT_SHIFT(BinaryTree.class),
Used for instances of BinaryTree
representing right shift >>
. /**
* Used for instances of {@link BinaryTree} representing
* right shift {@code >>}.
*/
RIGHT_SHIFT(BinaryTree.class),
Used for instances of BinaryTree
representing unsigned right shift >>>
. /**
* Used for instances of {@link BinaryTree} representing
* unsigned right shift {@code >>>}.
*/
UNSIGNED_RIGHT_SHIFT(BinaryTree.class),
Used for instances of BinaryTree
representing less-than <
. /**
* Used for instances of {@link BinaryTree} representing
* less-than {@code <}.
*/
LESS_THAN(BinaryTree.class),
Used for instances of BinaryTree
representing greater-than >
. /**
* Used for instances of {@link BinaryTree} representing
* greater-than {@code >}.
*/
GREATER_THAN(BinaryTree.class),
Used for instances of BinaryTree
representing less-than-equal <=
. /**
* Used for instances of {@link BinaryTree} representing
* less-than-equal {@code <=}.
*/
LESS_THAN_EQUAL(BinaryTree.class),
Used for instances of BinaryTree
representing greater-than-equal >=
. /**
* Used for instances of {@link BinaryTree} representing
* greater-than-equal {@code >=}.
*/
GREATER_THAN_EQUAL(BinaryTree.class),
Used for instances of BinaryTree
representing in operator in
. /**
* Used for instances of {@link BinaryTree} representing
* in operator {@code in}.
*/
IN(BinaryTree.class),
Used for instances of BinaryTree
representing equal-to ==
. /**
* Used for instances of {@link BinaryTree} representing
* equal-to {@code ==}.
*/
EQUAL_TO(BinaryTree.class),
Used for instances of BinaryTree
representing not-equal-to !=
. /**
* Used for instances of {@link BinaryTree} representing
* not-equal-to {@code !=}.
*/
NOT_EQUAL_TO(BinaryTree.class),
Used for instances of BinaryTree
representing equal-to ===
. /**
* Used for instances of {@link BinaryTree} representing
* equal-to {@code ===}.
*/
STRICT_EQUAL_TO(BinaryTree.class),
Used for instances of BinaryTree
representing not-equal-to !==
. /**
* Used for instances of {@link BinaryTree} representing
* not-equal-to {@code !==}.
*/
STRICT_NOT_EQUAL_TO(BinaryTree.class),
Used for instances of BinaryTree
representing bitwise and logical "and" &
. /**
* Used for instances of {@link BinaryTree} representing
* bitwise and logical "and" {@code &}.
*/
AND(BinaryTree.class),
Used for instances of BinaryTree
representing bitwise and logical "xor" ^
. /**
* Used for instances of {@link BinaryTree} representing
* bitwise and logical "xor" {@code ^}.
*/
XOR(BinaryTree.class),
Used for instances of BinaryTree
representing bitwise and logical "or" |
. /**
* Used for instances of {@link BinaryTree} representing
* bitwise and logical "or" {@code |}.
*/
OR(BinaryTree.class),
Used for instances of BinaryTree
representing conditional-and &&
. /**
* Used for instances of {@link BinaryTree} representing
* conditional-and {@code &&}.
*/
CONDITIONAL_AND(BinaryTree.class),
Used for instances of BinaryTree
representing conditional-or ||
. /**
* Used for instances of {@link BinaryTree} representing
* conditional-or {@code ||}.
*/
CONDITIONAL_OR(BinaryTree.class),
Used for instances of CompoundAssignmentTree
representing multiplication assignment *=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* multiplication assignment {@code *=}.
*/
MULTIPLY_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing division assignment /=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* division assignment {@code /=}.
*/
DIVIDE_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing remainder assignment %=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* remainder assignment {@code %=}.
*/
REMAINDER_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing addition or string concatenation assignment +=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* addition or string concatenation assignment {@code +=}.
*/
PLUS_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing subtraction assignment -=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* subtraction assignment {@code -=}.
*/
MINUS_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing left shift assignment <<=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* left shift assignment {@code <<=}.
*/
LEFT_SHIFT_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing right shift assignment >>=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* right shift assignment {@code >>=}.
*/
RIGHT_SHIFT_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing unsigned right shift assignment >>>=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* unsigned right shift assignment {@code >>>=}.
*/
UNSIGNED_RIGHT_SHIFT_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing bitwise and logical "and" assignment &=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* bitwise and logical "and" assignment {@code &=}.
*/
AND_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing bitwise and logical "xor" assignment ^=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* bitwise and logical "xor" assignment {@code ^=}.
*/
XOR_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of CompoundAssignmentTree
representing bitwise and logical "or" assignment |=
. /**
* Used for instances of {@link CompoundAssignmentTree} representing
* bitwise and logical "or" assignment {@code |=}.
*/
OR_ASSIGNMENT(CompoundAssignmentTree.class),
Used for instances of SpreadTree
representing spread "operator" for arrays and function call arguments. /**
* Used for instances of {@link SpreadTree} representing
* spread "operator" for arrays and function call arguments.
*/
SPREAD(SpreadTree.class),
Used for instances of YieldTree
representing (generator) yield expression yield expr
. /**
* Used for instances of {@link YieldTree} representing (generator)
* yield expression {@code yield expr}.
*/
YIELD(YieldTree.class),
Used for instances of LiteralTree
representing a number literal expression of type double
. /**
* Used for instances of {@link LiteralTree} representing
* a number literal expression of type {@code double}.
*/
NUMBER_LITERAL(LiteralTree.class),
Used for instances of LiteralTree
representing a boolean literal expression of type boolean
. /**
* Used for instances of {@link LiteralTree} representing
* a boolean literal expression of type {@code boolean}.
*/
BOOLEAN_LITERAL(LiteralTree.class),
Used for instances of LiteralTree
representing a string literal expression of type String
. /**
* Used for instances of {@link LiteralTree} representing
* a string literal expression of type {@link String}.
*/
STRING_LITERAL(LiteralTree.class),
Used for instances of LiteralTree
representing the use of null
. /**
* Used for instances of {@link LiteralTree} representing
* the use of {@code null}.
*/
NULL_LITERAL(LiteralTree.class),
An implementation-reserved node. This is the not the node
you are looking for.
/**
* An implementation-reserved node. This is the not the node
* you are looking for.
*/
OTHER(null);
Kind(final Class<? extends Tree> intf) {
associatedInterface = intf;
}
Returns the associated interface type that uses this kind.
Returns: the associated interface
/**
* Returns the associated interface type that uses this kind.
* @return the associated interface
*/
public Class<? extends Tree> asInterface() {
return associatedInterface;
}
Returns if this is a literal tree kind or not.
Returns: true if this is a literal tree kind, false otherwise
/**
* Returns if this is a literal tree kind or not.
*
* @return true if this is a literal tree kind, false otherwise
*/
public boolean isLiteral() {
return associatedInterface == LiteralTree.class;
}
Returns if this is an expression tree kind or not.
Returns: true if this is an expression tree kind, false otherwise
/**
* Returns if this is an expression tree kind or not.
*
* @return true if this is an expression tree kind, false otherwise
*/
public boolean isExpression() {
return ExpressionTree.class.isAssignableFrom(associatedInterface);
}
Returns if this is a statement tree kind or not.
Returns: true if this is a statement tree kind, false otherwise
/**
* Returns if this is a statement tree kind or not.
*
* @return true if this is a statement tree kind, false otherwise
*/
public boolean isStatement() {
return StatementTree.class.isAssignableFrom(associatedInterface);
}
private final Class<? extends Tree> associatedInterface;
}
Start character offset of this Tree within the source.
Returns: the position
/**
* Start character offset of this Tree within the source.
*
* @return the position
*/
long getStartPosition();
End character offset of this Tree within the source.
Returns: the position
/**
* End character offset of this Tree within the source.
*
* @return the position
*/
long getEndPosition();
Gets the kind of this tree.
Returns: the kind of this tree.
/**
* Gets the kind of this tree.
*
* @return the kind of this tree.
*/
Kind getKind();
Accept method used to implement the visitor pattern. The
visitor pattern is used to implement operations on trees.
Params: - visitor – tree visitor
- data – additional data passed to visitor methods
Type parameters: - <R> – result type of this operation.
- <D> – type of additional data.
Returns: the value from visitor's visit methods
/**
* Accept method used to implement the visitor pattern. The
* visitor pattern is used to implement operations on trees.
*
* @param <R> result type of this operation.
* @param <D> type of additional data.
* @param visitor tree visitor
* @param data additional data passed to visitor methods
* @return the value from visitor's visit methods
*/
<R,D> R accept(TreeVisitor<R,D> visitor, D data);
}