jdk.nashorn.api.tree (Java SE 14 & JDK 14)

Nashorn parser API provides interfaces to represent ECMAScript source code as abstract syntax trees (AST) and Parser to parse ECMAScript source scripts.

Using parser API user can write Java code to access parse tree representation of ECMAScript source. Script source may be a file, a URL or a String. Unless stated otherwise null argument in methods of this package result in NullPointerException being thrown.

 
 import jdk.nashorn.api.tree.*;
 import java.io.File;

 // Simple example that prints warning on 'with' statements
 public class Main {
     public static void main(String[] args) throws Exception {
         // Create a new parser instance
         Parser parser = Parser.create();
         File sourceFile = new File(args[0]);

         // Parse given source File using parse method.
         // Pass a diagnostic listener to print error messages.
         CompilationUnitTree cut = parser.parse(sourceFile,
             (d) -> { System.out.println(d); });

         if (cut != null) {
             // call Tree.accept method passing a SimpleTreeVisitor
             cut.accept(new SimpleTreeVisitor<Void, Void>() {
                 // visit method for 'with' statement
                 public Void visitWith(WithTree wt, Void v) {
                     // print warning on 'with' statement
                     System.out.println("Warning: using 'with' statement!");
                     return null;
                 }
             }, null);
         }
     }
 }

Since:: 9

Interface Summary
Interface	Description
ArrayAccessTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ArrayLiteralTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
AssignmentTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
BinaryTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
BlockTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
BreakTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
CaseTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
CatchTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ClassDeclarationTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ClassExpressionTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
CompilationUnitTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
CompoundAssignmentTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ConditionalExpressionTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ConditionalLoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ContinueTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
DebuggerTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
Diagnostic	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
DiagnosticListener	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
DoWhileLoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
EmptyStatementTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ErroneousTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ExportEntryTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ExpressionStatementTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ExpressionTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ForInLoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ForLoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ForOfLoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
FunctionCallTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
FunctionDeclarationTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
FunctionExpressionTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
GotoTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
IdentifierTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
IfTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ImportEntryTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
InstanceOfTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
LabeledStatementTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
LineMap	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
LiteralTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
LoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
MemberSelectTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ModuleTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
NewTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ObjectLiteralTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ParenthesizedTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
Parser	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
PropertyTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
RegExpLiteralTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ReturnTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
SpreadTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
StatementTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
SwitchTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
TemplateLiteralTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
ThrowTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
Tree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
TreeVisitor<R,P>	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
TryTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
UnaryTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
VariableTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
WhileLoopTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
WithTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
YieldTree	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.

Class Summary
Class	Description
SimpleTreeVisitorES5_1<R,P>	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
SimpleTreeVisitorES6<R,P>	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.

Enum Summary
Enum	Description
Diagnostic.Kind	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.
Tree.Kind	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.

Exception Summary
Exception	Description
UnknownTreeException	Deprecated, for removal: This API element is subject to removal in a future version. Nashorn JavaScript script engine and APIs, and the jjs tool are deprecated with the intent to remove them in a future release.

Package jdk.nashorn.api.tree