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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Igor Bukanov, igor@fastmail.fm
+ * Bob Jervis
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package org.mozilla.javascript;
+
+import java.util.Hashtable;
+
+public class CompilerEnvirons
+{
+ public CompilerEnvirons()
+ {
+ errorReporter = DefaultErrorReporter.instance;
+ languageVersion = Context.VERSION_DEFAULT;
+ generateDebugInfo = true;
+ useDynamicScope = false;
+ reservedKeywordAsIdentifier = false;
+ allowMemberExprAsFunctionName = false;
+ xmlAvailable = true;
+ optimizationLevel = 0;
+ generatingSource = true;
+ strictMode = false;
+ warningAsError = false;
+ generateObserverCount = false;
+ }
+
+ public void initFromContext(Context cx)
+ {
+ setErrorReporter(cx.getErrorReporter());
+ this.languageVersion = cx.getLanguageVersion();
+ useDynamicScope = cx.compileFunctionsWithDynamicScopeFlag;
+ generateDebugInfo = (!cx.isGeneratingDebugChanged()
+ || cx.isGeneratingDebug());
+ reservedKeywordAsIdentifier
+ = cx.hasFeature(Context.FEATURE_RESERVED_KEYWORD_AS_IDENTIFIER);
+ allowMemberExprAsFunctionName
+ = cx.hasFeature(Context.FEATURE_MEMBER_EXPR_AS_FUNCTION_NAME);
+ strictMode
+ = cx.hasFeature(Context.FEATURE_STRICT_MODE);
+ warningAsError = cx.hasFeature(Context.FEATURE_WARNING_AS_ERROR);
+ xmlAvailable
+ = cx.hasFeature(Context.FEATURE_E4X);
+
+ optimizationLevel = cx.getOptimizationLevel();
+
+ generatingSource = cx.isGeneratingSource();
+ activationNames = cx.activationNames;
+
+ // Observer code generation in compiled code :
+ generateObserverCount = cx.generateObserverCount;
+ }
+
+ public final ErrorReporter getErrorReporter()
+ {
+ return errorReporter;
+ }
+
+ public void setErrorReporter(ErrorReporter errorReporter)
+ {
+ if (errorReporter == null) throw new IllegalArgumentException();
+ this.errorReporter = errorReporter;
+ }
+
+ public final int getLanguageVersion()
+ {
+ return languageVersion;
+ }
+
+ public void setLanguageVersion(int languageVersion)
+ {
+ Context.checkLanguageVersion(languageVersion);
+ this.languageVersion = languageVersion;
+ }
+
+ public final boolean isGenerateDebugInfo()
+ {
+ return generateDebugInfo;
+ }
+
+ public void setGenerateDebugInfo(boolean flag)
+ {
+ this.generateDebugInfo = flag;
+ }
+
+ public final boolean isUseDynamicScope()
+ {
+ return useDynamicScope;
+ }
+
+ public final boolean isReservedKeywordAsIdentifier()
+ {
+ return reservedKeywordAsIdentifier;
+ }
+
+ public void setReservedKeywordAsIdentifier(boolean flag)
+ {
+ reservedKeywordAsIdentifier = flag;
+ }
+
+ public final boolean isAllowMemberExprAsFunctionName()
+ {
+ return allowMemberExprAsFunctionName;
+ }
+
+ public void setAllowMemberExprAsFunctionName(boolean flag)
+ {
+ allowMemberExprAsFunctionName = flag;
+ }
+
+ public final boolean isXmlAvailable()
+ {
+ return xmlAvailable;
+ }
+
+ public void setXmlAvailable(boolean flag)
+ {
+ xmlAvailable = flag;
+ }
+
+ public final int getOptimizationLevel()
+ {
+ return optimizationLevel;
+ }
+
+ public void setOptimizationLevel(int level)
+ {
+ Context.checkOptimizationLevel(level);
+ this.optimizationLevel = level;
+ }
+
+ public final boolean isGeneratingSource()
+ {
+ return generatingSource;
+ }
+
+ public final boolean isStrictMode()
+ {
+ return strictMode;
+ }
+
+ public final boolean reportWarningAsError()
+ {
+ return warningAsError;
+ }
+
+ /**
+ * Specify whether or not source information should be generated.
+ * <p>
+ * Without source information, evaluating the "toString" method
+ * on JavaScript functions produces only "[native code]" for
+ * the body of the function.
+ * Note that code generated without source is not fully ECMA
+ * conformant.
+ */
+ public void setGeneratingSource(boolean generatingSource)
+ {
+ this.generatingSource = generatingSource;
+ }
+
+ /**
+ * @return true iff code will be generated with callbacks to enable
+ * instruction thresholds
+ */
+ public boolean isGenerateObserverCount() {
+ return generateObserverCount;
+ }
+
+ /**
+ * Turn on or off generation of code with callbacks to
+ * track the count of executed instructions.
+ * Currently only affects JVM byte code generation: this slows down the
+ * generated code, but code generated without the callbacks will not
+ * be counted toward instruction thresholds. Rhino's interpretive
+ * mode does instruction counting without inserting callbacks, so
+ * there is no requirement to compile code differently.
+ * @param generateObserverCount if true, generated code will contain
+ * calls to accumulate an estimate of the instructions executed.
+ */
+ public void setGenerateObserverCount(boolean generateObserverCount) {
+ this.generateObserverCount = generateObserverCount;
+ }
+
+ private ErrorReporter errorReporter;
+
+ private int languageVersion;
+ private boolean generateDebugInfo;
+ private boolean useDynamicScope;
+ private boolean reservedKeywordAsIdentifier;
+ private boolean allowMemberExprAsFunctionName;
+ private boolean xmlAvailable;
+ private int optimizationLevel;
+ private boolean generatingSource;
+ private boolean strictMode;
+ private boolean warningAsError;
+ private boolean generateObserverCount;
+ Hashtable activationNames;
+}
+