public override Yarn.Type VisitExpAddSub(YarnSpinnerV1Parser.ExpAddSubContext context) { var expressions = context.expression(); switch (context.op.Text) { case "+": // + supports strings and numbers return(CheckOperation(context, expressions, context.op.Text, Yarn.Type.String, Yarn.Type.Number)); case "-": // - supports only numbers return(CheckOperation(context, expressions, context.op.Text, Yarn.Type.Number)); default: throw new InvalidOperationException($"Internal error: {nameof(VisitExpAddSub)} got unexpected op {context.op.Text}"); } }
/// <summary> /// Exit a parse tree produced by the <c>expAddSub</c> /// labeled alternative in <see cref="YarnSpinnerV1Parser.expression"/>. /// <para>The default implementation does nothing.</para> /// </summary> /// <param name="context">The parse tree.</param> public virtual void ExitExpAddSub([NotNull] YarnSpinnerV1Parser.ExpAddSubContext context) { }
/// <summary> /// Visit a parse tree produced by the <c>expAddSub</c> /// labeled alternative in <see cref="YarnSpinnerV1Parser.expression"/>. /// <para> /// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/> /// on <paramref name="context"/>. /// </para> /// </summary> /// <param name="context">The parse tree.</param> /// <return>The visitor result.</return> public virtual Result VisitExpAddSub([NotNull] YarnSpinnerV1Parser.ExpAddSubContext context) { return(VisitChildren(context)); }