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https://github.com/openjdk/jdk.git
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8156615: Catch parameter can be a BindingPattern in ES6 mode
Added parser support for catch parameter being a binding pattern Reviewed-by: sundar, hannesw, attila
This commit is contained in:
Srinivas Dama
Srinivas Dama
parent
8a2f4e80e4
commit
d867ed9a8d
@ -384,7 +384,7 @@ final class IRTranslator extends SimpleNodeVisitor {
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final List<CatchTreeImpl> catchTrees = new ArrayList<>(catchNodes.size());
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for (final CatchNode catchNode : catchNodes) {
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catchTrees.add(new CatchTreeImpl(catchNode,
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translateIdent(catchNode.getException()),
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translateExpr(catchNode.getException()),
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(BlockTree) translateBlock(catchNode.getBody()),
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translateExpr(catchNode.getExceptionCondition())));
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}
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@ -462,7 +462,7 @@ final class AssignSymbols extends SimpleNodeVisitor implements Loggable {
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@Override
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public boolean enterCatchNode(final CatchNode catchNode) {
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final IdentNode exception = catchNode.getException();
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final IdentNode exception = catchNode.getExceptionIdentifier();
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final Block block = lc.getCurrentBlock();
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start(catchNode);
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@ -3255,7 +3255,7 @@ final class CodeGenerator extends NodeOperatorVisitor<CodeGeneratorLexicalContex
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enterBlock(catchBlock);
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final CatchNode catchNode = (CatchNode)catchBlocks.get(i).getStatements().get(0);
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final IdentNode exception = catchNode.getException();
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final IdentNode exception = catchNode.getExceptionIdentifier();
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final Expression exceptionCondition = catchNode.getExceptionCondition();
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final Block catchBody = catchNode.getBody();
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@ -1053,7 +1053,7 @@ final class LocalVariableTypesCalculator extends SimpleNodeVisitor {
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joinOnLabel(catchLabel);
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for(final CatchNode catchNode: tryNode.getCatches()) {
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final IdentNode exception = catchNode.getException();
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final IdentNode exception = catchNode.getExceptionIdentifier();
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onAssignment(exception, LvarType.OBJECT);
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final Expression condition = catchNode.getExceptionCondition();
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if(condition != null) {
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@ -177,6 +177,15 @@ final class Lower extends NodeOperatorVisitor<BlockLexicalContext> implements Lo
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return checkEval(callNode.setFunction(markerFunction(callNode.getFunction())));
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}
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@Override
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public boolean enterCatchNode(final CatchNode catchNode) {
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Expression exception = catchNode.getException();
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if ((exception != null) && !(exception instanceof IdentNode)) {
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throwNotImplementedYet("es6.destructuring", exception);
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}
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return true;
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}
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@Override
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public Node leaveCatchNode(final CatchNode catchNode) {
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return addStatement(catchNode);
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@ -35,8 +35,8 @@ import jdk.nashorn.internal.ir.visitor.NodeVisitor;
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public final class CatchNode extends Statement {
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private static final long serialVersionUID = 1L;
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/** Exception identifier. */
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private final IdentNode exception;
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/** Exception binding identifier or binding pattern. */
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private final Expression exception;
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/** Exception condition. */
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private final Expression exceptionCondition;
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@ -52,21 +52,27 @@ public final class CatchNode extends Statement {
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* @param lineNumber lineNumber
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* @param token token
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* @param finish finish
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* @param exception variable name of exception
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* @param exception variable name or pattern of exception
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* @param exceptionCondition exception condition
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* @param body catch body
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* @param isSyntheticRethrow true if this node is a synthetically generated rethrow node.
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*/
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public CatchNode(final int lineNumber, final long token, final int finish, final IdentNode exception,
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public CatchNode(final int lineNumber, final long token, final int finish, final Expression exception,
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final Expression exceptionCondition, final Block body, final boolean isSyntheticRethrow) {
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super(lineNumber, token, finish);
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this.exception = exception == null ? null : exception.setIsInitializedHere();
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if (exception instanceof IdentNode) {
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this.exception = ((IdentNode) exception).setIsInitializedHere();
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} else if ((exception instanceof LiteralNode.ArrayLiteralNode) || (exception instanceof ObjectNode)) {
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this.exception = exception;
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} else {
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throw new IllegalArgumentException("invalid catch parameter");
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}
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this.exceptionCondition = exceptionCondition;
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this.body = body;
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this.body = body;
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this.isSyntheticRethrow = isSyntheticRethrow;
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}
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private CatchNode(final CatchNode catchNode, final IdentNode exception, final Expression exceptionCondition,
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private CatchNode(final CatchNode catchNode, final Expression exception, final Expression exceptionCondition,
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final Block body, final boolean isSyntheticRethrow) {
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super(catchNode);
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this.exception = exception;
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@ -83,11 +89,10 @@ public final class CatchNode extends Statement {
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public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {
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if (visitor.enterCatchNode(this)) {
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return visitor.leaveCatchNode(
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setException((IdentNode)exception.accept(visitor)).
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setExceptionCondition(exceptionCondition == null ? null : (Expression)exceptionCondition.accept(visitor)).
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setBody((Block)body.accept(visitor)));
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setException((Expression) exception.accept(visitor)).
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setExceptionCondition(exceptionCondition == null ? null : (Expression) exceptionCondition.accept(visitor)).
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setBody((Block) body.accept(visitor)));
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}
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return this;
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}
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@ -109,13 +114,24 @@ public final class CatchNode extends Statement {
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}
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/**
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* Get the identifier representing the exception thrown
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* @return the exception identifier
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* Get the binding pattern representing the exception thrown
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*
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* @return the exception binding pattern
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*/
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public IdentNode getException() {
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public Expression getException() {
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return exception;
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}
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/**
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* Get the identifier representing the exception thrown
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*
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* @return the exception identifier
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* @throws ClassCastException if exception set is not binding identifier
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*/
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public IdentNode getExceptionIdentifier() {
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return (IdentNode) exception;
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}
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/**
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* Get the exception condition for this catch block
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* @return the exception condition
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@ -146,13 +162,19 @@ public final class CatchNode extends Statement {
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/**
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* Resets the exception of a catch block
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* @param exception new exception
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*
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* @param exception new exception which can be binding identifier or binding
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* pattern
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* @return new catch node if changed, same otherwise
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*/
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public CatchNode setException(final IdentNode exception) {
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public CatchNode setException(final Expression exception) {
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if (this.exception == exception) {
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return this;
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}
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/*check if exception is legitimate*/
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if (!((exception instanceof IdentNode) || (exception instanceof LiteralNode.ArrayLiteralNode) || (exception instanceof ObjectNode))) {
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throw new IllegalArgumentException("invalid catch parameter");
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}
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return new CatchNode(this, exception, exceptionCondition, body, isSyntheticRethrow);
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}
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@ -2619,13 +2619,23 @@ public class Parser extends AbstractParser implements Loggable {
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next();
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expect(LPAREN);
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// FIXME: ES6 catch parameter can be a BindingIdentifier or a BindingPattern
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// We need to generalize this here!
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// ES6 catch parameter can be a BindingIdentifier or a BindingPattern
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// http://www.ecma-international.org/ecma-262/6.0/
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final IdentNode exception = getIdent();
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final String contextString = "catch argument";
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final Expression exception = bindingIdentifierOrPattern(contextString);
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final boolean isDestructuring = !(exception instanceof IdentNode);
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if (isDestructuring) {
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verifyDestructuringBindingPattern(exception, new Consumer<IdentNode>() {
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@Override
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public void accept(final IdentNode identNode) {
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verifyIdent(identNode, contextString);
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}
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});
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} else {
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// ECMA 12.4.1 strict mode restrictions
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verifyStrictIdent((IdentNode) exception, "catch argument");
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}
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// ECMA 12.4.1 strict mode restrictions
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verifyStrictIdent(exception, "catch argument");
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// Nashorn extension: catch clause can have optional
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// condition. So, a single try can have more than one
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@ -62,4 +62,11 @@ check("(function({ x }) { return x; })()");
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check("(function([x]) { return x; })()");
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check("for (var [[x, y, z] = [4, 5, 6]] = [7, 8, 9]; iterCount < 1; ) ;");
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check("for ([ arrow = () => {} ] of [[]]) ;");
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check("try { throw null;} catch({}) { }");
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check("try { throw {} } catch ({}) { }");
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check("try { throw [] } catch ([,]) { }");
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check("try { throw { w: [7, undefined, ] }} catch ({ w: [x, y, z] = [4, 5, 6] }) { }");
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check("try { throw { a: 2, b: 3} } catch ({a, b}) { }");
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check("try { throw [null] } catch ([[x]]) { }");
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check("try { throw { w: undefined } } catch ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) { }");
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@ -70,3 +70,24 @@ for (var [[x, y, z] = [4, 5, 6]] = [7, 8, 9]; iterCount < 1; ) ;
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:0 ES6 destructuring is not yet implemented
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for ([ arrow = () => {} ] of [[]]) ;
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:25 ES6 destructuring is not yet implemented
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try { throw null;} catch({}) { }
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:24 ES6 destructuring is not yet implemented
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try { throw {} } catch ({}) { }
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:24 ES6 destructuring is not yet implemented
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try { throw [] } catch ([,]) { }
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:44 ES6 destructuring is not yet implemented
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try { throw { w: [7, undefined, ] }} catch ({ w: [x, y, z] = [4, 5, 6] }) { }
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:35 ES6 destructuring is not yet implemented
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try { throw { a: 2, b: 3} } catch ({a, b}) { }
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:28 ES6 destructuring is not yet implemented
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try { throw [null] } catch ([[x]]) { }
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^
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java.lang.RuntimeException: test/script/basic/es6/destructuring.js#35:6<eval>:1:38 ES6 destructuring is not yet implemented
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try { throw { w: undefined } } catch ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) { }
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^
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@ -0,0 +1,51 @@
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/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* Tests to check representation of ES6 catch parameter as binding pattern.
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*
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* @test
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* @option -scripting
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* @run
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*/
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load(__DIR__ + "utils.js")
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var code = <<EOF
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try { throw null;} catch({}) { }
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try { throw {} } catch ({}) { }
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try { throw [] } catch ([,]) { }
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try { throw { w: [7, undefined, ] }} catch ({ w: [x, y, z] = [4, 5, 6] }) { }
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try { throw { a: 2, b: 3} } catch ({a, b}) { }
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try { throw [null] } catch ([[x]]) { }
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try { throw { w: undefined } } catch ({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) { }
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EOF
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parse("destructuring_catch.js", code, "--language=es6", new (Java.extend(visitor_es6, {
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visitCatch : function (node, obj) {
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obj.push(convert(node))
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}
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})))
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@ -0,0 +1,399 @@
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[
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{
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"condition": "null",
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"endPosition": "33",
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"kind": "CATCH",
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"parameter": {
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"endPosition": "28",
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"kind": "OBJECT_LITERAL",
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"startPosition": "26",
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"properties": []
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},
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"block": {
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"endPosition": "33",
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"kind": "BLOCK",
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"statements": [],
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"startPosition": "30"
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},
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"startPosition": "20"
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},
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{
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"condition": "null",
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"endPosition": "65",
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"kind": "CATCH",
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"parameter": {
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"endPosition": "60",
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"kind": "OBJECT_LITERAL",
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"startPosition": "58",
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"properties": []
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},
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"block": {
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"endPosition": "65",
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"kind": "BLOCK",
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"statements": [],
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"startPosition": "62"
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},
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"startPosition": "51"
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},
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{
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"condition": "null",
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"endPosition": "98",
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"kind": "CATCH",
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"parameter": {
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"endPosition": "93",
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"kind": "ARRAY_LITERAL",
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"elements": [
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null
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],
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"startPosition": "90"
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},
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"block": {
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"endPosition": "98",
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"kind": "BLOCK",
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"statements": [],
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"startPosition": "95"
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},
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"startPosition": "83"
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},
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{
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"condition": "null",
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"endPosition": "176",
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"kind": "CATCH",
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"parameter": {
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"endPosition": "171",
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"kind": "OBJECT_LITERAL",
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"startPosition": "143",
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"properties": [
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{
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"getter": "null",
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"endPosition": "169",
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"kind": "PROPERTY",
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"setter": "null",
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"value": {
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"expression": {
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"endPosition": "169",
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"kind": "ARRAY_LITERAL",
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"elements": [
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{
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"endPosition": "162",
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"kind": "NUMBER_LITERAL",
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"value": "4",
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"startPosition": "161"
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},
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{
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"endPosition": "165",
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"kind": "NUMBER_LITERAL",
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"value": "5",
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"startPosition": "164"
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},
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{
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"endPosition": "168",
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"kind": "NUMBER_LITERAL",
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"value": "6",
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"startPosition": "167"
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}
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],
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"startPosition": "160"
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},
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"endPosition": "169",
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"kind": "ASSIGNMENT",
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"variable": {
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"endPosition": "157",
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"kind": "ARRAY_LITERAL",
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"elements": [
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{
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"endPosition": "150",
|
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"kind": "IDENTIFIER",
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"name": "x",
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"startPosition": "149"
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||||
},
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{
|
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"endPosition": "153",
|
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"kind": "IDENTIFIER",
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"name": "y",
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"startPosition": "152"
|
||||
},
|
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{
|
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"endPosition": "156",
|
||||
"kind": "IDENTIFIER",
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||||
"name": "z",
|
||||
"startPosition": "155"
|
||||
}
|
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],
|
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"startPosition": "148"
|
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},
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"startPosition": "148"
|
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},
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"startPosition": "145",
|
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"key": {
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"endPosition": "146",
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"kind": "IDENTIFIER",
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"name": "w",
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"startPosition": "145"
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}
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}
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]
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},
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"block": {
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"endPosition": "176",
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"kind": "BLOCK",
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"statements": [],
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"startPosition": "173"
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},
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"startPosition": "136"
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},
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{
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"condition": "null",
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"endPosition": "223",
|
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"kind": "CATCH",
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"parameter": {
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"endPosition": "218",
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"kind": "OBJECT_LITERAL",
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"startPosition": "212",
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"properties": [
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{
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"getter": "null",
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"endPosition": "214",
|
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"kind": "PROPERTY",
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"setter": "null",
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"value": {
|
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"endPosition": "214",
|
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"kind": "IDENTIFIER",
|
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"name": "a",
|
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"startPosition": "213"
|
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},
|
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"startPosition": "213",
|
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"key": {
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"endPosition": "214",
|
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"kind": "IDENTIFIER",
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"name": "a",
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"startPosition": "213"
|
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}
|
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},
|
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{
|
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"getter": "null",
|
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"endPosition": "217",
|
||||
"kind": "PROPERTY",
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"setter": "null",
|
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"value": {
|
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"endPosition": "217",
|
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"kind": "IDENTIFIER",
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"name": "b",
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"startPosition": "216"
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},
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"startPosition": "216",
|
||||
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},
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}
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]
|
||||
Loading…
x
Reference in New Issue
Block a user