public override Yarn.IType VisitExpAddSub(YarnSpinnerParser.ExpAddSubContext context)
{
var expressions = context.expression();
Yarn.IType type;
var @operator = CodeGenerationVisitor.TokensToOperators[context.op.Type];
type = CheckOperation(context, expressions, @operator, context.op.Text);
context.Type = type;
return(type);
}
public override Yarn.Type VisitExpAddSub(YarnSpinnerParser.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}");
}
}
// + -
public override int VisitExpAddSub(YarnSpinnerParser.ExpAddSubContext context)
{
genericExpVisitor(context.expression(0), context.expression(1), context.op.Type);
return(0);
}
// + -
public override int VisitExpAddSub(YarnSpinnerParser.ExpAddSubContext context)
{
this.GenerateCodeForOperation(TokensToOperators[context.op.Type], context.op, context.Type, context.expression(0), context.expression(1));
return(0);
}
/// <summary>
/// Visit a parse tree produced by the <c>expAddSub</c>
/// labeled alternative in <see cref="YarnSpinnerParser.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] YarnSpinnerParser.ExpAddSubContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by the <c>expAddSub</c>
/// labeled alternative in <see cref="YarnSpinnerParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitExpAddSub([NotNull] YarnSpinnerParser.ExpAddSubContext context)
{
}
