aboutsummaryrefslogtreecommitdiff
path: root/src/jdk/nashorn/internal/runtime/ECMAException.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/jdk/nashorn/internal/runtime/ECMAException.java')
-rw-r--r--src/jdk/nashorn/internal/runtime/ECMAException.java298
1 files changed, 0 insertions, 298 deletions
diff --git a/src/jdk/nashorn/internal/runtime/ECMAException.java b/src/jdk/nashorn/internal/runtime/ECMAException.java
deleted file mode 100644
index f906e18f..00000000
--- a/src/jdk/nashorn/internal/runtime/ECMAException.java
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
- * 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
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.nashorn.internal.runtime;
-
-import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup;
-import static jdk.nashorn.internal.codegen.CompilerConstants.virtualField;
-import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED;
-
-import javax.script.ScriptException;
-import jdk.nashorn.api.scripting.NashornException;
-import jdk.nashorn.internal.codegen.CompilerConstants.Call;
-import jdk.nashorn.internal.codegen.CompilerConstants.FieldAccess;
-
-/**
- * Exception used to implement ECMAScript "throw" from scripts. The actual thrown
- * object from script need not be a Java exception and so it is wrapped as an
- * instance field called "thrown" here. This exception class is also used to
- * represent ECMA errors thrown from runtime code (for example, TypeError,
- * ReferenceError thrown from Nashorn engine runtime).
- */
-@SuppressWarnings("serial")
-public final class ECMAException extends NashornException {
- /**
- * Method handle pointing to the constructor {@link ECMAException#create(Object, String, int, int)},
- */
- public static final Call CREATE = staticCallNoLookup(ECMAException.class, "create", ECMAException.class, Object.class, String.class, int.class, int.class);
-
- /** Field handle to the{@link ECMAException#thrown} field, so that it can be accessed from generated code */
- public static final FieldAccess THROWN = virtualField(ECMAException.class, "thrown", Object.class);
-
- private static final String EXCEPTION_PROPERTY = "nashornException";
-
- /** Object thrown. */
- public final Object thrown;
-
- /**
- * Constructor. Called from the factory method 'create'.
- *
- * @param thrown object to be thrown
- * @param fileName script file name
- * @param line line number of throw
- * @param column column number of throw
- */
- private ECMAException(final Object thrown, final String fileName, final int line, final int column) {
- super(ScriptRuntime.safeToString(thrown), asThrowable(thrown), fileName, line, column);
- this.thrown = thrown;
- setExceptionToThrown();
- }
-
- /**
- * Constructor. This is called from the runtime code.
- *
- * @param thrown object to be thrown
- * @param cause Java exception that triggered this throw
- */
- public ECMAException(final Object thrown, final Throwable cause) {
- super(ScriptRuntime.safeToString(thrown), cause);
- this.thrown = thrown;
- setExceptionToThrown();
- }
-
- /**
- * Factory method to retrieve the underlying exception or create an exception.
- * This method is called from the generated code.
- *
- * @param thrown object to be thrown
- * @param fileName script file name
- * @param line line number of throw
- * @param column column number of throw
- * @return ECMAException object
- */
- public static ECMAException create(final Object thrown, final String fileName, final int line, final int column) {
- // If thrown object is an Error or sub-object like TypeError, then
- // an ECMAException object has been already initialized at constructor.
- if (thrown instanceof ScriptObject) {
- final Object exception = getException((ScriptObject)thrown);
- if (exception instanceof ECMAException) {
- final ECMAException ee = (ECMAException)exception;
- // Make sure exception has correct thrown reference because that's what will end up getting caught.
- if (ee.getThrown() == thrown) {
- // copy over file name, line number and column number.
- ee.setFileName(fileName);
- ee.setLineNumber(line);
- ee.setColumnNumber(column);
- return ee;
- }
- }
- }
-
- return new ECMAException(thrown, fileName, line, column);
- }
-
- /**
- * Get the thrown object
- * @return thrown object
- */
- @Override
- public Object getThrown() {
- return thrown;
- }
-
- @Override
- public String toString() {
- final StringBuilder sb = new StringBuilder();
- final String fileName = getFileName();
- final int line = getLineNumber();
- final int column = getColumnNumber();
-
- if (fileName != null) {
- sb.append(fileName);
- if (line >= 0) {
- sb.append(':');
- sb.append(line);
- }
- if (column >= 0) {
- sb.append(':');
- sb.append(column);
- }
- sb.append(' ');
- } else {
- sb.append("ECMAScript Exception: ");
- }
-
- sb.append(getMessage());
- return sb.toString();
- }
-
- /**
- * Get the {@link ECMAException}, i.e. the underlying Java object for the
- * JavaScript error object from a {@link ScriptObject} representing an error
- *
- * @param errObj the error object
- * @return a {@link ECMAException}
- */
- public static Object getException(final ScriptObject errObj) {
- // Exclude inherited properties that may belong to errors in the prototype chain.
- if (errObj.hasOwnProperty(ECMAException.EXCEPTION_PROPERTY)) {
- return errObj.get(ECMAException.EXCEPTION_PROPERTY);
- }
- return null;
- }
-
- /**
- * Print the stack trace for a {@code ScriptObject} representing an error
- *
- * @param errObj the error object
- * @return undefined
- */
- public static Object printStackTrace(final ScriptObject errObj) {
- final Object exception = getException(errObj);
- if (exception instanceof Throwable) {
- ((Throwable)exception).printStackTrace(Context.getCurrentErr());
- } else {
- Context.err("<stack trace not available>");
- }
- return UNDEFINED;
- }
-
- /**
- * Get the line number for a {@code ScriptObject} representing an error
- *
- * @param errObj the error object
- * @return the line number, or undefined if wrapped exception is not a ParserException
- */
- public static Object getLineNumber(final ScriptObject errObj) {
- final Object e = getException(errObj);
- if (e instanceof NashornException) {
- return ((NashornException)e).getLineNumber();
- } else if (e instanceof ScriptException) {
- return ((ScriptException)e).getLineNumber();
- }
-
- return UNDEFINED;
- }
-
- /**
- * Get the column number for a {@code ScriptObject} representing an error
- *
- * @param errObj the error object
- * @return the column number, or undefined if wrapped exception is not a ParserException
- */
- public static Object getColumnNumber(final ScriptObject errObj) {
- final Object e = getException(errObj);
- if (e instanceof NashornException) {
- return ((NashornException)e).getColumnNumber();
- } else if (e instanceof ScriptException) {
- return ((ScriptException)e).getColumnNumber();
- }
-
- return UNDEFINED;
- }
-
- /**
- * Get the file name for a {@code ScriptObject} representing an error
- *
- * @param errObj the error object
- * @return the file name, or undefined if wrapped exception is not a ParserException
- */
- public static Object getFileName(final ScriptObject errObj) {
- final Object e = getException(errObj);
- if (e instanceof NashornException) {
- return ((NashornException)e).getFileName();
- } else if (e instanceof ScriptException) {
- return ((ScriptException)e).getFileName();
- }
-
- return UNDEFINED;
- }
-
- /**
- * Stateless string conversion for an error object
- *
- * @param errObj the error object
- * @return string representation of {@code errObj}
- */
- public static String safeToString(final ScriptObject errObj) {
- Object name = UNDEFINED;
- try {
- name = errObj.get("name");
- } catch (final Exception e) {
- //ignored
- }
-
- if (name == UNDEFINED) {
- name = "Error";
- } else {
- name = ScriptRuntime.safeToString(name);
- }
-
- Object msg = UNDEFINED;
- try {
- msg = errObj.get("message");
- } catch (final Exception e) {
- //ignored
- }
-
- if (msg == UNDEFINED) {
- msg = "";
- } else {
- msg = ScriptRuntime.safeToString(msg);
- }
-
- if (((String)name).isEmpty()) {
- return (String)msg;
- }
-
- if (((String)msg).isEmpty()) {
- return (String)name;
- }
-
- return name + ": " + msg;
- }
-
- private static Throwable asThrowable(final Object obj) {
- return (obj instanceof Throwable)? (Throwable)obj : null;
- }
-
- private void setExceptionToThrown() {
- /*
- * Nashorn extension: errorObject.nashornException
- * Expose this exception via "nashornException" property of on the
- * thrown object. This exception object can be used to print stack
- * trace and fileName, line number etc. from script code.
- */
-
- if (thrown instanceof ScriptObject) {
- final ScriptObject sobj = (ScriptObject)thrown;
- if (!sobj.has(EXCEPTION_PROPERTY)) {
- sobj.addOwnProperty(EXCEPTION_PROPERTY, Property.NOT_ENUMERABLE, this);
- } else {
- sobj.set(EXCEPTION_PROPERTY, this, 0);
- }
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-28 02:10:40 +0000