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() {
String nodeStr = "";
nodeStr = name;
if (args != null && args!.isNotEmpty) {
nodeStr += "(";
args!.forEach((String key, dynamic val) {
nodeStr += "$key: ${this.parseArgs(val)} ,";
});
nodeStr = nodeStr.substring(0, nodeStr.length - 1);
nodeStr += ")";
}
if (cols != null && cols!.isNotEmpty) {
nodeStr += "{\n";
cols!.forEach((dynamic col) {
nodeStr += col.toString() + "\n";
});
nodeStr += "}";
}
return nodeStr;
}