Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_codesigning / antlr2 / antlr / ASTPair.hpp

diff --git a/Security/libsecurity_codesigning/antlr2/antlr/ASTPair.hpp b/Security/libsecurity_codesigning/antlr2/antlr/ASTPair.hpp
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+++ b/Security/libsecurity_codesigning/antlr2/antlr/ASTPair.hpp
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+#ifndef INC_ASTPair_hpp__
+#define INC_ASTPair_hpp__
+
+/* ANTLR Translator Generator
+ * Project led by Terence Parr at http://www.jGuru.com
+ * Software rights: http://www.antlr.org/license.html
+ *
+ * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/antlr/ASTPair.hpp#2 $
+ */
+
+#include <antlr/config.hpp>
+#include <antlr/AST.hpp>
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+namespace antlr {
+#endif
+
+/** ASTPair:  utility class used for manipulating a pair of ASTs
+  * representing the current AST root and current AST sibling.
+  * This exists to compensate for the lack of pointers or 'var'
+  * arguments in Java.
+  *
+  * OK, so we can do those things in C++, but it seems easier
+  * to stick with the Java way for now.
+  */
+class ANTLR_API ASTPair {
+public:
+       RefAST root;            // current root of tree
+       RefAST child;           // current child to which siblings are added
+
+       /** Make sure that child is the last sibling */
+       void advanceChildToEnd() {
+               if (child) {
+                       while (child->getNextSibling()) {
+                               child = child->getNextSibling();
+                       }
+               }
+       }
+//     /** Copy an ASTPair.  Don't call it clone() because we want type-safety */
+//     ASTPair copy() {
+//             ASTPair tmp = new ASTPair();
+//             tmp.root = root;
+//             tmp.child = child;
+//             return tmp;
+//     }
+       ANTLR_USE_NAMESPACE(std)string toString() const {
+               ANTLR_USE_NAMESPACE(std)string r = !root ? ANTLR_USE_NAMESPACE(std)string("null") : root->getText();
+               ANTLR_USE_NAMESPACE(std)string c = !child ? ANTLR_USE_NAMESPACE(std)string("null") : child->getText();
+               return "["+r+","+c+"]";
+       }
+};
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+}
+#endif
+
+#endif //INC_ASTPair_hpp__