[PATCH v2 01/12] builtin: add generic .args method

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The arity of builtin functions can be retrieved from their prototype.
So, create a generic .args method, doing the evaluation of all
arguments present in the prototype.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
 builtin.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/builtin.c b/builtin.c
index 26b612dc401b..0d4cb12cca22 100644
--- a/builtin.c
+++ b/builtin.c
@@ -83,6 +83,13 @@ error:
 	return 0;
 }
 
+static int args_prototype(struct expression *expr)
+{
+	struct symbol *fntype = expr->fn->ctype->ctype.base_type;
+	int n = symbol_list_size(fntype->arguments);
+	return eval_args(expr, n);
+}
+
 static int args_triadic(struct expression *expr)
 {
 	return eval_args(expr, 3);
-- 
2.28.0




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