from static method
TypeMapper?
from(
- dynamic matcher,
- dynamic mapper, [
- dynamic unmapper
])
Implementation
static TypeMapper? from(dynamic matcher, dynamic mapper, [dynamic unmapper]) {
NodeMatcher? matcherOk;
NodeMap? mapperOk;
NodeUnmap? unmapperOk;
if (matcher is NodeMatcher) {
matcherOk = matcher;
} else if (matcher is RegExp) {
matcherOk = (n, p, k) {
var keyPath = k.toString();
var hasMatch = matcher.hasMatch(keyPath);
return hasMatch;
};
}
if (mapper is NodeMap) {
mapperOk = mapper;
}
if (unmapper is NodeUnmap) {
unmapperOk = unmapper;
}
if (matcherOk != null && mapperOk != null) {
return TypeMapper(matcherOk, mapperOk, unmapperOk);
}
return null;
}