xo-reader xo-expression: nested lambdas working properly + docs

xo-expression/src/expression/GlobalEnv.cpp

@@ -0,0 +1,26 @@
+/* file GlobalEnv.cpp
+ *
+ * author: Roland Conybeare, Jul 2025
+ */
+
+#include "GlobalEnv.hpp"
+#include "Expression.hpp"
+
+namespace xo {
+    namespace ast {
+        GlobalEnv::GlobalEnv() = default;
+
+        bp<Expression>
+        GlobalEnv::require_global(const std::string & vname,
+                                  bp<Expression> expr)
+        {
+            this->global_map_[vname] = expr.get();
+            return expr;
+        } /*require_global*/
+
+        void
+        GlobalEnv::print(std::ostream & os) const {
+            os << "<globalenv" << xtag("size", global_map_.size()) << ">";
+        }
+    } /*namespace ast*/
+} /*namespace xo*/