xo-reader: wip: stub for lambda expression

src/reader/CMakeLists.txt

@@ -11,7 +11,8 @@ set(SELF_SRCS
     exprseq_xs.cpp
     expect_expr_xs.cpp
     expect_symbol_xs.cpp
-    expect_type_xs.cpp)
+    expect_type_xs.cpp
+    lambda_xs.cpp)
 
 xo_add_shared_library4(${SELF_LIB} ${PROJECT_NAME}Targets ${PROJECT_VERSION} 1 ${SELF_SRCS})
 xo_dependency(${SELF_LIB} xo_expression)

src/reader/lambda_xs.cpp

@@ -0,0 +1,13 @@
+/* @file lambda_xs.cpp */
+
+#include "lambda_xs.hpp"
+
+namespace xo {
+    namespace scm {
+        lambda_xs::lambda_xs() {}
+
+    } /*namespace scm*/
+} /*namespace xo*/
+
+
+/* end lambda_xs.cpp */