From 6a0490257bf235d011004bc303306f617ac6ea31 Mon Sep 17 00:00:00 2001
From: Marc Vertes <mvertes@free.fr>
Date: Mon, 20 Nov 2023 15:54:52 +0100
Subject: parser: add support for unary operators

---
 lang/token.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'lang/token.go')

diff --git a/lang/token.go b/lang/token.go
index a894c98..4bf9bf2 100644
--- a/lang/token.go
+++ b/lang/token.go
@@ -116,6 +116,16 @@ const (
 	EqualSet
 )
 
+var UnaryOp = map[TokenId]TokenId{
+	Add:   Plus,    // +
+	And:   Address, // &
+	Not:   Not,     // !
+	Mul:   Deref,   // *
+	Sub:   Minus,   // -
+	Tilde: Tilde,   // ~
+	Xor:   BitComp, // ^
+}
+
 func (t TokenId) IsKeyword() bool   { return t >= Break && t <= Var }
 func (t TokenId) IsLiteral() bool   { return t >= Char && t <= String }
 func (t TokenId) IsOperator() bool  { return t >= Add && t <= Tilde }
-- 
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