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function GenericPartCreator(type) {
return str => ({ type, value: str });
}
const ListFormatParts = {
Element: GenericPartCreator("element"),
Literal: GenericPartCreator("literal"),
};
function assertParts(lf, x, expected) {
var parts = lf.formatToParts(x);
assertEq(parts.map(part => part.value).join(""), lf.format(x),
"formatToParts and format must agree");
var len = parts.length;
assertEq(len, expected.length, "parts count mismatch");
for (var i = 0; i < len; i++) {
assertEq(parts[i].type, expected[i].type, "type mismatch at " + i);
assertEq(parts[i].value, expected[i].value, "value mismatch at " + i);
}
}