package types_test

import (
	"go/parser"
	"testing"

	. "go/types"
)

var testExprs = []testEntry{
	// basic type literals
	dup("x"),
	dup("true"),
	dup("42"),
	dup("3.1415"),
	dup("2.71828i"),
	dup(`'a'`),
	dup(`"foo"`),
	dup("`bar`"),
	dup("any"),

	// func and composite literals
	{"func(){}", "(func() literal)"},
	{"func(x int) complex128 {}", "(func(x int) complex128 literal)"},

}

func dup(s string) [2]string { return [2]string{s, s} }

var exprTests = [][2]string{
	// basic type literals
	dup("x"),
	dup("true"),
	dup("42"),
	dup("3.1415"),
	dup("2.71828i"),
	dup(`'a'`),
	dup(`"foo"`),
	dup("`bar`"),
	dup("any"),

	// func and composite literals
	dup("func() {}"),
	dup("[]int{}"),
	{"func(x int) complex128 { return 0 }", "func(x int) complex128 {…}"},

	"strings"
	"testing"
)

var tests = []struct {
	x any // x is printed as s
	s string
}{
	// basic types
	{nil, "0  nil"},
	{true, "0  true"},
	{42, "0  42"},
	{3.14, "0  3.14"},
	{1 + 2.718i, "0  (1+2.718i)"},
	{"foobar", "0  \"foobar\""},

	// maps
	{map[Expr]string{}, `0  map[ast.Expr]string (len = 0) {}`},
	{map[string]int{"a": 1},
		`0  map[string]int (len = 1) {
		1  .  "a": 1
		2  }`},

	_ = 0xcafebabe
	_ = 0.
	_ = .0
	_ = 3.14159265
	_ = 1e0
	_ = 1e+100
	_ = 1e-100
	_ = 2.71828e-1000
	_ = 0i
	_ = 1i
	_ = 012345678901234567889i
	_ = 123456789012345678890i
	_ = 0.i
	_ = .0i
	_ = 3.14159265i
	_ = 1e0i
	_ = 1e+100i
	_ = 1e-100i
	_ = 2.71828e-1000i
	_ = 'a'
	_ = '\000'
	_ = '\xFF'
	_ = '\uff16'
	_ = '\U0000ff16'
	_ = `foobar`
	_ = `foo

	_	= 0xcafebabe
	_	= 0.
	_	= .0
	_	= 3.14159265
	_	= 1e0
	_	= 1e+100
	_	= 1e-100
	_	= 2.71828e-1000
	_	= 0i
	_	= 1i
	_	= 012345678901234567889i
	_	= 123456789012345678890i
	_	= 0.i
	_	= .0i
	_	= 3.14159265i
	_	= 1e0i
	_	= 1e+100i
	_	= 1e-100i
	_	= 2.71828e-1000i
	_	= 'a'
	_	= '\000'
	_	= '\xFF'
	_	= '\uff16'
	_	= '\U0000ff16'
	_	= `foobar`
	_	= `foo

import org.gradle.internal.jvm.Jvm
import org.gradle.test.fixtures.ConcurrentTestUtil
import org.gradle.test.fixtures.Flaky

@Flaky(because = "https://github.com/gradle/gradle/issues/18280")
class CancellationIntegrationTest extends DaemonIntegrationSpec implements DirectoryBuildCacheFixture {
    private static final String START_UP_MESSAGE = "Cancellable task started!"
    private DaemonClientFixture client

	{_Literal, ".0E+12345678901234567890", 0, 0},
	{_Literal, ".45e1", 0, 0},
	{_Literal, "3.14159265", 0, 0},
	{_Literal, "1e0", 0, 0},
	{_Literal, "1e+100", 0, 0},
	{_Literal, "1e-100", 0, 0},
	{_Literal, "2.71828e-1000", 0, 0},
	{_Literal, "0i", 0, 0},
	{_Literal, "1i", 0, 0},
	{_Literal, "012345678901234567889i", 0, 0},
	{_Literal, "123456789012345678890i", 0, 0},
	{_Literal, "0.i", 0, 0},
	{_Literal, ".0i", 0, 0},

	eq(I1.Sum(t2, a, 12), 22)

	f3 := I1.Sum
	eq(f3(t1, a, 13), 23)
	eq(f3(t2, a, 14), 24)

	eq(I2.Sum(t1, a, 15), 25)
	eq(I2.Sum(t2, a, 16), 26)

	f4 := I2.Sum
	eq(f4(t1, a, 17), 27)
	eq(f4(t2, a, 18), 28)

	// issue 6723
	f5 := (interface {
		I2
	}).Sum
	eq(f5(t1, a, 19), 29)
	eq(f5(t2, a, 20), 30)

	mt1 := method4a.T1(4)
	mt2 := &method4a.T2{4}

	eq(mt1.Sum(a, 30), 40)
	eq(mt2.Sum(a, 31), 41)

integer, even if it starts with a leading <code>0</code>.
</p>

<pre>
0i
0123i         // == 123i for backward-compatibility
0o123i        // == 0o123 * 1i == 83i
0xabci        // == 0xabc * 1i == 2748i
0.i
2.71828i
1.e+0i
6.67428e-11i
1E6i
.25i
.12345E+5i
0x1p-2i       // == 0x1p-2 * 1i == 0.25i
</pre>


<h3 id="Rune_literals">Rune literals</h3>

<p>

			return
		}
	}
}

func TestWriter(t *testing.T) {
	for _, filename := range filenames {
		for _, order := range [...]Order{LSB, MSB} {
			// The test data "2.71828 etcetera" is ASCII text requiring at least 6 bits.
			for litWidth := 6; litWidth <= 8; litWidth++ {
				if filename == "../testdata/gettysburg.txt" && litWidth == 6 {
					continue
				}