xo-reader: wip: + exprseq_xs class

src/reader/exprseq_xs.cpp

@@ -0,0 +1,33 @@
+/* @file exprseq_xs.cpp */
+
+#include "exprseq_xs.hpp"
+#include "define_xs.hpp"
+
+namespace xo {
+    namespace scm {
+        void
+        exprseq_xs::on_def_token(const token_type & /*tk*/,
+                                 exprstatestack * p_stack)
+        {
+            constexpr bool c_debug_flag = true;
+            scope log(XO_DEBUG(c_debug_flag));
+
+            //constexpr const char * c_self_name = "exprseq_xs::on_def_token";
+
+            p_stack->push_exprstate(define_xs::def_0());
+
+            /* todo: replace:
+             *   expect_symbol_or_function_signature()
+             */
+            p_stack->push_exprstate(exprstate::expect_symbol());
+
+            /* keyword 'def' introduces a definition:
+             *   def pi : f64 = 3.14159265
+             *   def sq(x : f64) -> f64 { (x * x) }
+             */
+        }
+    } /*namespace scm*/
+} /*namespace xo*/
+
+
+/* end exprseq_xs.cpp */