parser: add ABinopExpr::operator to avoid refining each operator class in other modules

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/parser/parser_nodes.nit b/src/parser/parser_nodes.nit
index 076825e..508c739 100644 (file)
--- a/src/parser/parser_nodes.nit
+++ b/src/parser/parser_nodes.nit
@@ -1886,6 +1886,9 @@ abstract class ABinopExpr
        # The second operand of the operation
        # Note: the receiver (`n_expr`) is the first operand
        var n_expr2: AExpr is writable, noinit
+
+       # The name of the operator (eg '+')
+       fun operator: String is abstract
 end
 
 # Something that is boolean expression
@@ -1944,41 +1947,49 @@ end
 # A `==` expression
 class AEqExpr
        super ABinopExpr
+       redef fun operator do return "=="
 end
 
 # A `!=` expression
 class ANeExpr
        super ABinopExpr
+       redef fun operator do return "!="
 end
 
 # A `<` expression
 class ALtExpr
        super ABinopExpr
+       redef fun operator do return "<"
 end
 
 # A `<=` expression
 class ALeExpr
        super ABinopExpr
+       redef fun operator do return "<="
 end
 
 # A `<<` expression
 class ALlExpr
        super ABinopExpr
+       redef fun operator do return "<<"
 end
 
 # A `>` expression
 class AGtExpr
        super ABinopExpr
+       redef fun operator do return ">"
 end
 
 # A `>=` expression
 class AGeExpr
        super ABinopExpr
+       redef fun operator do return ">="
 end
 
 # A `>>` expression
 class AGgExpr
        super ABinopExpr
+       redef fun operator do return ">>"
 end
 
 # A type-ckeck expression. eg `x isa T`
@@ -1998,36 +2009,43 @@ end
 # A `+` expression
 class APlusExpr
        super ABinopExpr
+       redef fun operator do return "+"
 end
 
 # A `-` expression
 class AMinusExpr
        super ABinopExpr
+       redef fun operator do return "-"
 end
 
 # A `<=>` expression
 class AStarshipExpr
        super ABinopExpr
+       redef fun operator do return "<=>"
 end
 
 # A `*` expression
 class AStarExpr
        super ABinopExpr
+       redef fun operator do return "*"
 end
 
 # A `**` expression
 class AStarstarExpr
        super ABinopExpr
+       redef fun operator do return "**"
 end
 
 # A `/` expression
 class ASlashExpr
        super ABinopExpr
+       redef fun operator do return "/"
 end
 
 # A `%` expression
 class APercentExpr
        super ABinopExpr
+       redef fun operator do return "%"
 end
 
 # A unary minus expression. eg `-x`