public override CompilerResult VisitAddSubExpr(DesignScriptParser.AddSubExprContext context)
{
VisitExpr(context.expr()[0]);
var lhs = valueStack.Pop();
VisitExpr(context.expr()[1]);
var rhs = valueStack.Pop();
LLVMValueRef val = default;
if (context.Op.Text == "+")
{
val = LLVM.BuildFAdd(builder, lhs, rhs, "addtmp");
}
else if (context.Op.Text == "-")
{
val = LLVM.BuildFSub(builder, lhs, rhs, "subtmp");
}
valueStack.Push(val);
return(new NullCompilerResult());
}
/// <summary>
/// Visit a parse tree produced by the <c>addSubExpr</c>
/// labeled alternative in <see cref="DesignScriptParser.expr"/>.
/// <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 VisitAddSubExpr([NotNull] DesignScriptParser.AddSubExprContext context)
{
return(VisitChildren(context));
}
