toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString() {
var topRecipeRep = _prettyRepOf(topRecipe, "...");
var containedRecipeRep = _prettyRepOf(containedRecipe, "...");
var fullRep = _prettyRepOf(topRecipe, "...$containedRecipeRep...");
var detailsStr = (details != null)? " ($details)" : "";
return "Invalid regex configuration `$fullRep`: `$topRecipeRep` cannot contain `$containedRecipeRep$detailsStr";
}