Bulletproofing operator overloads using generated data

meta.py

@@ -5,40 +5,46 @@ def pascal_to_snake(v):
   name = snake_case_pattern.sub('_', v).lower()
   return name
 
+BINARY_EXPR = 1
+UNARY_EXPR  = 2
+
 token_simple_expr = [
-  ["Mul", "*"],
-  ["Div", "/"],
-  ["Mod", "%"],
-  ["LeftShift", "<<"],
-  ["RightShift", ">>"],
+  ["Mul", "*", BINARY_EXPR],
+  ["Div", "/", BINARY_EXPR],
+  ["Mod", "%", BINARY_EXPR],
+  ["LeftShift", "<<", BINARY_EXPR],
+  ["RightShift", ">>", BINARY_EXPR],
   ["FirstMul = TK_Mul", "SPECIAL"],
   ["LastMul = TK_RightShift", "SPECIAL"],
-  ["Add", "+"],
-  ["Sub", "-"],
+  ["Add", "+", BINARY_EXPR | UNARY_EXPR],
+  ["Sub", "-", BINARY_EXPR | UNARY_EXPR],
   ["FirstAdd = TK_Add", "SPECIAL"],
   ["LastAdd = TK_Sub", "SPECIAL"],
-  ["Equals", "=="],
-  ["LesserThenOrEqual", "<="],
-  ["GreaterThenOrEqual", ">="],
-  ["LesserThen", "<"],
-  ["GreaterThen", ">"],
-  ["NotEquals", "!="],
+  ["Equals", "==", BINARY_EXPR],
+  ["LesserThenOrEqual", "<=", BINARY_EXPR],
+  ["GreaterThenOrEqual", ">=", BINARY_EXPR],
+  ["LesserThen", "<", BINARY_EXPR],
+  ["GreaterThen", ">", BINARY_EXPR],
+  ["NotEquals", "!=", BINARY_EXPR],
   ["FirstCompare = TK_Equals", "SPECIAL"],
   ["LastCompare = TK_NotEquals", "SPECIAL"],
-  ["BitAnd", "&"],
-  ["BitOr", "|"],
-  ["BitXor", "^"],
-  ["And", "&&"],
-  ["Or", "||"],
+  ["BitAnd", "&", BINARY_EXPR],
+  ["BitOr", "|", BINARY_EXPR],
+  ["BitXor", "^", BINARY_EXPR],
+  ["And", "&&", BINARY_EXPR],
+  ["Or", "||", BINARY_EXPR],
   ["FirstLogical = TK_BitAnd", "SPECIAL"],
   ["LastLogical = TK_Or", "SPECIAL"],
 
-  ["Neg", "~"],
-  ["Not", "!"],
-  ["Decrement", "--"],
-  ["Increment", "++"],
-  ["PostDecrement", "--"],
-  ["PostIncrement", "++"],
+  ["Neg", "~", UNARY_EXPR],
+  ["Not", "!", UNARY_EXPR],
+]
+
+token_inc_expr = [
+  ["Decrement", "--", UNARY_EXPR],
+  ["Increment", "++", UNARY_EXPR],
+  ["PostDecrement", "--", UNARY_EXPR],
+  ["PostIncrement", "++", UNARY_EXPR],
 ]
 
 token_assign_expr = [
@@ -89,7 +95,7 @@ token_rest = [
   ["Keyword", "[Keyword]"],
 ]
 
-token_kinds = token_simple_expr + token_assign_expr + token_rest
+token_kinds = token_simple_expr + token_inc_expr + token_assign_expr + token_rest
 
 keywords = [
   "struct",