// untyped constants
	const _ int = complex(1, 0)
	const _ float32 = complex(1, 0)
	const _ complex64 = complex(1, 0)
	const _ complex128 = complex(1, 0)
	const _ = complex(0i, 0i)
	const _ = complex(0i, 0)
	const _ int = 1.0 + complex(1, 0i)

	const _ int = complex /* ERROR "int" */ (1.1, 0)
	const _ float32 = complex /* ERROR "float32" */ (1, 2)

	// untyped values
	var s uint

Alexander Zielenski <******@****.***> 1717179408 -0700

	const (
		a = 1 + iota // ERROR "invalid operation|incompatible types|cannot convert"
	)
	_, _ = n, y
}

const (
	append     = 1
	bool       = 2
	byte       = 3
	complex    = 4
	complex64  = 5
	complex128 = 6
	cap        = 7
	close      = 8
	delete     = 9
	error      = 10
	false      = 11
	float32    = 12
	float64    = 13
	imag       = 14
	int        = 15
	int8       = 16

package decls1

import (
	"math"
)

// Global variables without initialization
var (
	a, b bool
	c byte
	d uint8
	r rune
	i int
	j, k, l int
	x, y float32
	xx, yy float64
	u, v complex64
	uu, vv complex128
	s, t string
	array []byte
	iface interface{}

	blank _ /* ERROR "cannot use _" */
)

// Global variables with initialization
var (
	s1 = i + j
	s2 = i /* ERROR "mismatched types" */ + x

func Sinh(x complex128) complex128 {
	switch re, im := real(x), imag(x); {
	case re == 0 && (math.IsInf(im, 0) || math.IsNaN(im)):
		return complex(re, math.NaN())
	case math.IsInf(re, 0):
		switch {
		case im == 0:
			return complex(re, im)
		case math.IsInf(im, 0) || math.IsNaN(im):
			return complex(re, math.NaN())
		}
	case im == 0 && math.IsNaN(re):
		return complex(math.NaN(), im)
	}
	s, c := math.Sincos(imag(x))

	Uintptr:       {Uintptr, IsInteger | IsUnsigned, "uintptr"},
	Float32:       {Float32, IsFloat, "float32"},
	Float64:       {Float64, IsFloat, "float64"},
	Complex64:     {Complex64, IsComplex, "complex64"},
	Complex128:    {Complex128, IsComplex, "complex128"},
	String:        {String, IsString, "string"},
	UnsafePointer: {UnsafePointer, 0, "Pointer"},

	UntypedBool:    {UntypedBool, IsBoolean | IsUntyped, "untyped bool"},

	Uintptr:       {Uintptr, IsInteger | IsUnsigned, "uintptr"},
	Float32:       {Float32, IsFloat, "float32"},
	Float64:       {Float64, IsFloat, "float64"},
	Complex64:     {Complex64, IsComplex, "complex64"},
	Complex128:    {Complex128, IsComplex, "complex128"},
	String:        {String, IsString, "string"},
	UnsafePointer: {UnsafePointer, 0, "Pointer"},

	UntypedBool:    {UntypedBool, IsBoolean | IsUntyped, "untyped bool"},

// license that can be found in the LICENSE file.

package p

func Real[P ~complex128](x P) {
	_ = real(x /* ERROR "not supported" */ )
}

func Imag[P ~complex128](x P) {
	_ = imag(x /* ERROR "not supported" */ )
}

func Complex[P ~float64](x P) {
	_ = complex(x /* ERROR "not supported" */ , 0)
	_ = complex(0 /* ERROR "not supported" */ , x)
	_ = complex(x /* ERROR "not supported" */ , x)

var g1 = float64(1)

var ix int
var i0 = 0
var i1 = 1

var jx uint
var j0 = uint(0)
var j1 = uint(1)

var cx complex64
var c0 = complex64(0)
var c1 = complex64(1)

var dx complex128
var d0 = complex128(0)
var d1 = complex128(1)

var sx []int
var s0 = []int{0, 0, 0}
var s1 = []int{1, 2, 3}

func fi() int { return 1 }

var ax [10]int

Ela é bastante extensiva na especificação e cobre casos de uso muito complexos.

Ela inclui uma forma para autenticação usando “third party”/aplicações de terceiros.

Isso é o que todos os sistemas com “Login with Facebook, Google, Twitter, GitHub” usam por baixo.

### OAuth 1

Havia um OAuth 1, que é bem diferente do OAuth2, e mais complexo, isso incluía diretamente as especificações de como criptografar a comunicação.