syntax: add safe call syntax `x?.foo`

[nit.git] / src / parser / nit.sablecc3xx

diff --git a/src/parser/nit.sablecc3xx b/src/parser/nit.sablecc3xx
index 1931792..d7380c5 100644 (file)
--- a/src/parser/nit.sablecc3xx
+++ b/src/parser/nit.sablecc3xx
@@ -204,6 +204,7 @@ ge = '>=';
 gg = '>>';
 starship = '<=>';
 bang='!';
+quest='?';
 at='@';
 semi=';';
 
@@ -792,6 +793,7 @@ atid~forclass {-> atid}
 
 recv~nopar~nobra {-> expr}
        = expr_atom~nopar~nobra dot no {-> expr_atom~nopar~nobra.expr}
+       | {safe} expr_atom~nopar~nobra quest dot no {-> New expr.safe(expr_atom~nopar~nobra.expr, quest)}
        | {implicit} {-> New expr.implicit_self()}
        ;
 
@@ -1053,6 +1055,7 @@ expr      = {block} expr* kwend?
        | {debug_type} kwdebug kwtype expr type
        | {vararg} expr dotdotdot
        | {namedarg} id assign expr
+       | {safe} expr quest
        | {type} type
        | {methid} expr [id]:methid
        | {at} annotations