public static VerifiedExpression Parse(string expr, CalcEnvironment env)
{
if (env == null)
{
throw new ArgumentNullException(nameof(env));
}
var tokenExpr = TokenExpression.Parse(expr);
if (tokenExpr.Success)
{
return(Verifier.VerifyExpression(tokenExpr.BackingArray, env));
}
else
{
return(new VerifiedExpression(tokenExpr.ErrorMessage, tokenExpr.ErrorPosition));
}
}
public static VerifiedExpression Create(TokenExpression tokenExpr, CalcEnvironment env)
{
if (tokenExpr == null)
{
throw new ArgumentNullException(nameof(tokenExpr));
}
if (!tokenExpr.Success)
{
throw new ArgumentException("Expression must be successfully parsed.", nameof(tokenExpr));
}
if (env == null)
{
throw new ArgumentNullException(nameof(env));
}
var arr = tokenExpr.Expression.ToArray();
return(Verifier.VerifyExpression(arr, env));
}
