From 46470071f3f6e50a6fc26b360b81569191b45fbb Mon Sep 17 00:00:00 2001
From: yhirose <yuji.hirose.bug@gmail.com>
Date: Fri, 12 Jun 2015 18:12:54 -0400
Subject: [PATCH] Removed optional parameter from enable_ast().

---
 example/calc3.cc |  2 +-
 peglib.h         | 15 ++++++++-------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/example/calc3.cc b/example/calc3.cc
index 6169345..1ead659 100644
--- a/example/calc3.cc
+++ b/example/calc3.cc
@@ -49,7 +49,7 @@ int main(int argc, const char** argv)
         "  ~_               <-  [ \t\r\n]*                        "
         );
 
-    parser.enable_ast();
+    parser.enable_ast(true);
 
     auto expr = argv[1];
     shared_ptr<Ast> ast;
diff --git a/peglib.h b/peglib.h
index c43da2a..2993d86 100644
--- a/peglib.h
+++ b/peglib.h
@@ -148,7 +148,13 @@ private:
 /*
 * Semantic values
 */
-struct SemanticValue {
+struct SemanticValue
+{
+    any         val;
+    const char* name;
+    const char* s;
+    size_t      n;
+
     SemanticValue()
         : s(nullptr), n(0) {}
 
@@ -168,11 +174,6 @@ struct SemanticValue {
     std::string str() const {
         return std::string(s, n);
     }
-
-    any         val;
-    const char* name;
-    const char* s;
-    size_t      n;
 };
 
 struct SemanticValues : protected std::vector<SemanticValue>
@@ -2057,7 +2058,7 @@ public:
         return *this;
     }
 
-    peg& enable_ast(bool optimize_nodes = true) {
+    peg& enable_ast(bool optimize_nodes) {
         ast_end(optimize_nodes);
         return *this;
     }