t.ae

struct Foo { var foo: Int var bar: Int var buz: Int init(foo: Int, buz: Int) { self.foo = foo self.bar = foo*3 guard foo < bar && bar > 0 else { fatalError() } self.buz = buz } }

Version:

swift-4.1.1-RELEASE

Output:

Error:

/usercode/main.swift:10:28: error: variable 'self.buz' captured by a closure before being initialized guard foo < bar && bar > 0 else { ^