in packages/core/nano/src/parser.ts [168:188]
function tokenToString(token: SyntaxKind): string {
switch (token) {
case SyntaxKind.AsteriskToken: return "*";
case SyntaxKind.CaretToken: return "^";
case SyntaxKind.PlusToken: return "+";
case SyntaxKind.MinusToken: return "-";
case SyntaxKind.DotToken: return ".";
case SyntaxKind.LessThanToken: return "<";
case SyntaxKind.GreaterThanToken: return ">";
case SyntaxKind.LessThanEqualsToken: return "<=";
case SyntaxKind.GreaterThanEqualsToken: return ">=";
case SyntaxKind.EqualsToken: return "=";
case SyntaxKind.NotEqualsToken: return "<>";
case SyntaxKind.OpenParenToken: return "(";
case SyntaxKind.CloseParenToken: return ")";
case SyntaxKind.CommaToken: return ",";
case SyntaxKind.SlashToken: return "/";
default:
return "";
}
}