Files
test-repo/tests/fixpoint/Fun.js
T
Christopher Chedeau cf45afba61 Add testing
- This brings in the flow test suite that contains a ton of JavaScript parsing edge cases
- This creates snapshot tests using the pretty printer for all of them
- If uncomment `RUN_AST_TESTS` line in `tests/run_specs.js`, it checks ast(pretty_print(x)) == ast(x). Right now, "178 failed, 197 passed, 375 of 377 total". So half of the tests are not passing, most of them are crashes and many of the rest are subtle issues.
2016-12-23 19:51:53 +00:00

31 lines
601 B
JavaScript

/* @providesModule Fun */
function eq(x:number,y:number) { return true };
function sub(x:number,y:number) { return 0; }
function mul(x:number,y:number) { return 0; }
function fix(fold) {
var delta = function(delta) {
return fold(
function(x) { var eta = delta(delta); return eta(x); }
);
};
return delta(delta);
}
function mk_factorial() {
return fix(function(factorial) {
return function(n) {
if (eq (n, 1)) { return 1; }
return mul (factorial (sub (n, 1)), n);
};
});
}
var factorial = mk_factorial();
factorial("...");
module.exports = {fn: fix};