langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/AttrContext.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/AttrContext.java Sun Aug 17 15:52:32 2014 +0100
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 1999, 2014, 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 com.sun.tools.javac.comp;
+
+import com.sun.tools.javac.util.*;
+import com.sun.tools.javac.code.*;
+import com.sun.tools.javac.code.Scope.WriteableScope;
+
+/** Contains information specific to the attribute and enter
+ * passes, to be used in place of the generic field in environments.
+ *
+ * <p><b>This is NOT part of any supported API.
+ * If you write code that depends on this, you do so at your own risk.
+ * This code and its internal interfaces are subject to change or
+ * deletion without notice.</b>
+ */
+public class AttrContext {
+
+ /** The scope of local symbols.
+ */
+ WriteableScope scope = null;
+
+ /** The number of enclosing `static' modifiers.
+ */
+ int staticLevel = 0;
+
+ /** Is this an environment for a this(...) or super(...) call?
+ */
+ boolean isSelfCall = false;
+
+ /** Are we evaluating the selector of a `super' or type name?
+ */
+ boolean selectSuper = false;
+
+ /** Is the current target of lambda expression or method reference serializable?
+ */
+ boolean isSerializable = false;
+
+ /**
+ * Are we doing speculative attribution?
+ */
+ boolean isSpeculative = false;
+
+ /** Are arguments to current function applications boxed into an array for varargs?
+ */
+ Resolve.MethodResolutionPhase pendingResolutionPhase = null;
+
+ /** A record of the lint/SuppressWarnings currently in effect
+ */
+ Lint lint;
+
+ /** The variable whose initializer is being attributed
+ * useful for detecting self-references in variable initializers
+ */
+ Symbol enclVar = null;
+
+ /** ResultInfo to be used for attributing 'return' statement expressions
+ * (set by Attr.visitMethod and Attr.visitLambda)
+ */
+ Attr.ResultInfo returnResult = null;
+
+ /** Symbol corresponding to the site of a qualified default super call
+ */
+ Type defaultSuperCallSite = null;
+
+ /** Duplicate this context, replacing scope field and copying all others.
+ */
+ AttrContext dup(WriteableScope scope) {
+ AttrContext info = new AttrContext();
+ info.scope = scope;
+ info.staticLevel = staticLevel;
+ info.isSelfCall = isSelfCall;
+ info.selectSuper = selectSuper;
+ info.pendingResolutionPhase = pendingResolutionPhase;
+ info.lint = lint;
+ info.enclVar = enclVar;
+ info.returnResult = returnResult;
+ info.defaultSuperCallSite = defaultSuperCallSite;
+ info.isSerializable = isSerializable;
+ info.isSpeculative = isSpeculative;
+ return info;
+ }
+
+ /** Duplicate this context, copying all fields.
+ */
+ AttrContext dup() {
+ return dup(scope);
+ }
+
+ public Iterable<Symbol> getLocalElements() {
+ if (scope == null)
+ return List.nil();
+ return scope.getSymbols();
+ }
+
+ boolean lastResolveVarargs() {
+ return pendingResolutionPhase != null &&
+ pendingResolutionPhase.isVarargsRequired();
+ }
+
+ @Override
+ public String toString() {
+ return "AttrContext[" + scope.toString() + "]";
+ }
+}