ensureKeyword method
dynamic
ensureKeyword([
- dynamic kw = null
Implementation
ensureKeyword([kw = null]) {
if (!isKeyword) {
throw ArgumentError("expected a keyword, got '$value'");
}
if (kw != null && value.toLowerCase() != kw.toLowerCase()) {
throw ArgumentError("unexpected keyword: expected '$kw', got '$value'");
}
}