protected void AssertLiteralSuffix(string code, string suffix, object value, Type type)
{
LitExprNode literal = this.GenerateAST(code).As <LitExprNode>();
Assert.That(literal, Is.Not.Null);
Assert.That(literal.Value?.GetType(), Is.EqualTo(type));
Assert.That(literal.Suffix, Is.EqualTo(suffix));
Assert.That(ConstantExpressionEvaluator.Evaluate(literal), Is.EqualTo(value).Within(1e-10));
}
public override ASTNode VisitExp([NotNull] ExpContext ctx)
{
if (!ctx.exp()?.Any() ?? true)
{
string firstToken = ctx.children.First().GetText();
switch (firstToken)
{
case "nil":
return(new NullLitExprNode(ctx.Start.Line));
case "true":
case "false":
return(LitExprNode.FromString(ctx.Start.Line, firstToken));
case "...":
throw new NotImplementedException("...");
}
if (ctx.number() is { })
public virtual TResult Visit(LitExprNode node) => this.VisitChildren(node);
public override Expr Visit(LitExprNode node) // TODO string literals need to be substituted as well... => node.Value is null ? Expr.Undefined : Expr.Parse(node.Value.ToString());