From: Michael D. Lowis <mike.lowis@gentex.com>
Date: Fri, 29 Mar 2019 18:34:04 +0000 (-0400)
Subject: added total hack version of struct member access and UFCS
X-Git-Url: https://git.mdlowis.com/?a=commitdiff_plain;h=c28f65a42e2dc36afdec9a6bdbad7f6be1e14b85;p=proto%2Fsclpl.git

added total hack version of struct member access and UFCS
---

diff --git a/example.src b/example.src
index 0c6e513..b60c809 100644
--- a/example.src
+++ b/example.src
@@ -46,5 +46,10 @@ fun main(args string[]) int {
     fun submain(args string[]) int {
         123
     }
+    # UFCS call (call regular function like a method)
     foo.bar()
+#    foo.bar.baz()
+    # Struct/Union field access
+    foo.bar
+#    foo.bar.baz
 }
diff --git a/source/parser.c b/source/parser.c
index 55a0ecc..9192190 100644
--- a/source/parser.c
+++ b/source/parser.c
@@ -170,15 +170,19 @@ static AST* expression(Parser* p) {
         exp = constant(p);
     }
 
-    /* determine if this is a function call */
-    if (matches(p, '(')) {
-        exp = Apply(exp, expr_list(p, '(', ')'));
-    } else if (accept(p, '.')) {
-        AST* func = identifier(p);
-        AST* args = expr_list(p, '(', ')');
-        explist_prepend(args, exp);
-        exp = Apply(func, args);
-    }
+    /* check for member reference or UFCS call */
+    AST *member = NULL, *args = NULL;
+    if (accept(p, '.'))
+        member = identifier(p);
+    if (matches(p, '('))
+        args = expr_list(p, '(', ')');
+
+    if (member && !args)
+        exp = exp; // ??? AST for struct reference
+    else if (member && args)
+        exp = Apply(member, args);
+    else if (!member && args)
+        exp = args;
 
     return exp;
 }