parser: create Precedence and Associativity enums

trunk_parser/src/parser/mod.rs

@@ -46,6 +46,7 @@ mod block;
 mod comments;
 mod ident;
 mod params;
+mod precedence;
 mod punc;
 
 pub struct ParserConfig {

trunk_parser/src/parser/precedence.rs

@@ -0,0 +1,34 @@
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub enum Precedence {
+    CloneNew,
+    Pow,
+    Prefix,
+    Instanceof,
+    Bang,
+    MulDivMod,
+    AddSub,
+    BitShift,
+    Concat,
+    LtGt,
+    Equality,
+    BitwiseAnd,
+    BitwiseXor,
+    BitwiseOr,
+    And,
+    Or,
+    NullCoalesce,
+    Ternary,
+    Assignment,
+    YieldFrom,
+    Yield,
+    Print,
+    KeyAnd,
+    KeyXor,
+    KeyOr,
+}
+
+pub enum Associativity {
+    None,
+    Left,
+    Right,
+}