iOS utils

structexample.txt

{
  "name": "X",
  "fields": [
    ["a", "Int"],
    ["b", "String?"]
  ]
}

swiftstruct.py

import sys
import json

# print 'args: ', sys.argv

# usage example:
# $ cat structexample.txt | python swiftstruct.py

infoText = sys.stdin.read()

# print infoText

info = json.loads(infoText)

structName = info['name']
instanceVariables     = "\n".join(["    let {0}: {1}".format(name, type) for (name, type) in info['fields']])
initializerVariables  = "\n         ".join(["{0}: {1},".format(name, type) for (name, type) in info['fields']])
initializerAssignment = "\n".join(["        self.{0} = {0}".format(name) for (name, _) in info['fields']])
updateVariables       = "\n                      ".join(["{0}: {1}? = nil,".format(name, type) for (name, type) in info['fields']])
updateReturn          = "\n".join(["            {0}: {0} ?? self.{0}".format(name) for (name, _) in info['fields']])
equatable             = "\n".join(["        guard lhs.{0} == rhs.{0} else {{ return false }}".format(name) for (name, _) in info['fields']])

formatString = """
struct {0}: Equatable {{
{1}
    
    init({2}) {{
{3}
    }}

    // MARK: - updateValues

    func updateValues({4}) -> {0} {{
        return {0}(
{5})
    }}

    // MARK: - Equatable

    static func == (lhs: {0}, rhs: {0}) -> Bool {{
{6}
        return true
    }}
}}
"""
print formatString.format(
    structName, 
    instanceVariables, 
    initializerVariables,
    initializerAssignment, 
    updateVariables, 
    updateReturn, 
    equatable)

vcinit.py

import sys

# print 'args: ', sys.argv

name = sys.argv[1]

# generate default initializers for a xib-based view controller
output = """
class {0}: UIViewController {{

    // MARK: boilerplate

    // MARK: output

    // MARK: ui elements

    // MARK: private

    // MARK: init

    init() {{
        super.init(nibName: "{0}", bundle: Bundle(for: {0}.self))
    }}
    
    required init?(coder aDecoder: NSCoder) {{
        fatalError("init(coder:) has not been implemented")
    }}

    // MARK: view lifecycle

    override func viewDidLoad() {{
        super.viewDidLoad()
    }}

}}
""".format(name)

print output