Hello. Thank you for Swiftstraints. In this pull request I fixed the problem with the Array elements type create with init(H: VFLComponent, options: NSLayoutConstraint.FormatOptions = []) and init(V: VFLComponent, options: NSLayoutConstraint.FormatOptions = []). Currently the following test fails:

func testVFLComponent2() {
    class MyConstraint: NSLayoutConstraint {
            
    }
        
    let superview = UIView()
    let view1 = UIView()
    let view2 = UIView()
    superview.addSubview(view1)
    superview.addSubview(view2)

    _ = {
        let shorthandConstraints = [MyConstraint](H:|-[view1]-(>=5)-[view2]-3-|)
        let normalConstraints = NSLayoutConstraint.constraints(withVisualFormat: "H:|-[view1]-(>=5)-[view2]-3-|",
                                                               options: [],
                                                               metrics: nil,
                                                               views: ["view1" : view1, "view2" : view2])
        for (lh, rh) in zip(shorthandConstraints, normalConstraints) {
            XCTAssert(lh == rh)
        }
    }()
}

This PR adds a shared scheme for the project, making it compatible with Carthage as a result.

I've also added Github's suggested Gitignore for Swift projects & removed a couple of project related files that would otherwise have been ignore.

New awesome experimental sugar,

NSLayoutConstraints(H:|-[view1]-(>=5)-[view2]-3-|)
NSLayoutConstraints(H:|-[view1]-(>=5)-[view2:==view1]-3-|)
NSLayoutConstraints(H:|-30-[view1:==3.~(.high)]-10-[view2:>=5]-30-|)
NSLayoutConstraints(V:|[view1:20]-10-[view2]-(30.~(.required-1))-|)

Thanks for inspiration from https://github.com/0xc010d/VFLToolbox

Sorry I made a mistake when changing the hash table's options. Since the “redundant” (for Swift 3.1) init methods are removed, the numbers are fetched and stored in a different way. "Weak" cannot be used, moreover, numbers of equal values should not be treated as the same, either.

I've added .objectPointerPersonality to solve this crash.

Case: H:|-(\(number1))-[\(view)]-(\(number2))-|, in which number1 is equal to number2, e.g. both are 15.

There are 4 issues with missing parameter names. In file NSLayoutConstraint+Implementation.swift, there are missing an argument labels, "right:", for the function mergeConstraints. There's another missing argument label, "rawValue:", in LayoutConstraints.swift for NSLayoutFormatOptions.

NSLayoutConstraint+Implementation.swift line #73, 77, 81. LayoutConstraint.swift line #25

Another option would be to omit the external parameter name in the function definition if you'd like to keep it that way.

There is also a remnant of Swift 1 in LayoutConstraint.swift on line #44. The enumerate function no loner takes an array as an argument, instead it is now a function of the object itself.

for (index, object) in enumerate(array) in should be for (index, object) in array.enumerate()

Look forward to using your pod. It will clean up my project very nicely.

Hello. Thank you for Swiftstraints. In this pull request I added 3 new operators ==!, >=! and <=!. They are similar to ==, >= and <=, but the constraints created with ==!, >=! and <=! are activated by default.

NSHashTable.contains uses its own pointer options when comparing. So also added metrics.contains, just to align with views.contains condition.

This commit fixes the cases when one same view appears for multiple times in one same VFL string, e.g. [view1]-[view2(==view1)]

Swiftstraints helps me a lot because it reduces a lot of codes and I love it. One thing I'm curious is, if there's another way of adding constraints instead of set isActive on each constraint.

As is:

        let iconView = UIImageView(image: UIImage(named: "Icon"))
        view.addSubview(iconView)
        iconView.translatesAutoresizingMaskIntoConstraints = false
        (iconView.widthAnchor == 120.0).isActive = true
        (iconView.heightAnchor == 120.0).isActive = true
        (iconView.centerXAnchor == view.centerXAnchor).isActive = true
        (iconView.centerYAnchor == view.centerYAnchor - Spacing.large).isActive = true

To be:

        let iconView = UIImageView(image: UIImage(named: "Icon"))
        view.addSubview(iconView)
        iconView.translatesAutoresizingMaskIntoConstraints = false
        iconView.addConstraints([
                (iconView.widthAnchor == 120.0),
                (iconView.heightAnchor == 120.0),
                (iconView.centerXAnchor == view.centerXAnchor),
                (iconView.centerYAnchor == view.centerYAnchor - Spacing.large)
        ])

But the To be code isn't compiled, it says: Error:(17, 41) binary operator '==' cannot be applied to two 'NSLayoutXAxisAnchor' operands.

Is there any workaround? Thank you.