public void ProvidesConvenienceSubclassForDefiningKeywords()
{
var foo = new KeywordTokenKind("foo");
foo.Name.ShouldBe("foo");
foo.TryMatch(new InputText("bar"), out Token token).ShouldBeFalse();
token.ShouldBeNull();
foo.TryMatch(new InputText("foo"), out token).ShouldBeTrue();
token.ShouldBe(foo, "foo", 1, 1);
foo.TryMatch(new InputText("foo bar"), out token).ShouldBeTrue();
token.ShouldBe(foo, "foo", 1, 1);
foo.TryMatch(new InputText("foobar"), out token).ShouldBeFalse();
token.ShouldBeNull();
Func <TokenKind> notJustLetters = () => new KeywordTokenKind(" oops ");
notJustLetters.ShouldThrow <ArgumentException>("Keywords may only contain letters.\r\nParameter name: keyword");
}
public KeywordToken(KeywordTokenKind kind, SourceSpan location) : base(location)
{
Kind = kind;
}
