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https://github.com/golang/go
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[dev.typeparams] cmd/compile/internal/types2: convert testdata/check tests to type set sytax
Change-Id: I0c2dda10ba7cb40330545fd10fbacb8c84f66a2d Reviewed-on: https://go-review.googlesource.com/c/go/+/324569 Trust: Robert Griesemer <gri@golang.org> Reviewed-by: Robert Findley <rfindley@google.com>
This commit is contained in:
Robert Griesemer
parent
c790964ae4
commit
8cdce85bdf
@ -7,19 +7,19 @@
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package builtins
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type Bmc interface {
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type map[rune]string, chan int
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~map[rune]string | ~chan int
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}
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type Bms interface {
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type map[string]int, []int
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~map[string]int | ~[]int
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}
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type Bcs interface {
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type chan bool, []float64
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~chan bool | ~[]float64
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}
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type Bss interface {
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type []int, []string
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~[]int | ~[]string
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}
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func _[T any] () {
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@ -57,7 +57,7 @@ func _() {
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// type with a type list constraint, all of the type argument's types in its
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// bound, but at least one (!), must be in the type list of the bound of the
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// corresponding parameterized type's type parameter.
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type T1[P interface{type uint}] struct{}
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type T1[P interface{~uint}] struct{}
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func _[P any]() {
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_ = T1[P /* ERROR P has no type constraints */ ]{}
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@ -65,7 +65,7 @@ func _[P any]() {
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// This is the original (simplified) program causing the same issue.
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type Unsigned interface {
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type uint
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~uint
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}
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type T2[U Unsigned] struct {
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@ -156,7 +156,7 @@ type inf2[T any] struct{ inf2 /* ERROR illegal cycle */ [T] }
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// predicate disjunction in the implementation was wrong because if a type list
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// contains both an integer and a floating-point type, the type parameter is
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// neither an integer or a floating-point number.
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func convert[T1, T2 interface{type int, uint, float32}](v T1) T2 {
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func convert[T1, T2 interface{~int | ~uint | ~float32}](v T1) T2 {
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return T2(v)
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}
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@ -168,12 +168,12 @@ func _() {
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// both numeric, or both strings. The implementation had the same problem
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// with this check as the conversion issue above (issue #39623).
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func issue39623[T interface{type int, string}](x, y T) T {
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func issue39623[T interface{~int | ~string}](x, y T) T {
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return x + y
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}
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// Simplified, from https://go2goplay.golang.org/p/efS6x6s-9NI:
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func Sum[T interface{type int, string}](s []T) (sum T) {
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func Sum[T interface{~int | ~string}](s []T) (sum T) {
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for _, v := range s {
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sum += v
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}
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@ -182,19 +182,19 @@ func Sum[T interface{type int, string}](s []T) (sum T) {
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// Assignability of an unnamed pointer type to a type parameter that
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// has a matching underlying type.
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func _[T interface{}, PT interface{type *T}] (x T) PT {
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func _[T interface{}, PT interface{~*T}] (x T) PT {
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return &x
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}
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// Indexing of generic types containing type parameters in their type list:
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func at[T interface{ type []E }, E interface{}](x T, i int) E {
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func at[T interface{ ~[]E }, E interface{}](x T, i int) E {
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return x[i]
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}
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// A generic type inside a function acts like a named type. Its underlying
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// type is itself, its "operational type" is defined by the type list in
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// the tybe bound, if any.
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func _[T interface{type int}](x T) {
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func _[T interface{~int}](x T) {
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type myint int
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var _ int = int(x)
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var _ T = 42
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@ -203,24 +203,24 @@ func _[T interface{type int}](x T) {
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// Indexing a generic type with an array type bound checks length.
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// (Example by mdempsky@.)
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func _[T interface { type [10]int }](x T) {
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func _[T interface { ~[10]int }](x T) {
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_ = x[9] // ok
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_ = x[20 /* ERROR out of bounds */ ]
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}
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// Pointer indirection of a generic type.
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func _[T interface{ type *int }](p T) int {
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func _[T interface{ ~*int }](p T) int {
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return *p
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}
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// Channel sends and receives on generic types.
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func _[T interface{ type chan int }](ch T) int {
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func _[T interface{ ~chan int }](ch T) int {
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ch <- 0
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return <- ch
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}
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// Calling of a generic variable.
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func _[T interface{ type func() }](f T) {
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func _[T interface{ ~func() }](f T) {
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f()
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go f()
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}
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@ -232,7 +232,7 @@ func _[T interface{ type func() }](f T) {
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// type parameter that was substituted with a defined type.
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// Test case from an (originally) failing example.
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type sliceOf[E any] interface{ type []E }
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type sliceOf[E any] interface{ ~[]E }
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func append[T interface{}, S sliceOf[T], T2 interface{ T }](s S, t ...T2) S
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@ -9,10 +9,10 @@ import "math"
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// Numeric is type bound that matches any numeric type.
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// It would likely be in a constraints package in the standard library.
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type Numeric interface {
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type int, int8, int16, int32, int64,
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uint, uint8, uint16, uint32, uint64, uintptr,
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float32, float64,
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complex64, complex128
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~int | ~int8 | ~int16 | ~int32 | ~int64 |
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~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr |
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~float32 | ~float64 |
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~complex64 | ~complex128
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}
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func DotProduct[T Numeric](s1, s2 []T) T {
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@ -42,14 +42,14 @@ func AbsDifference[T NumericAbs[T]](a, b T) T {
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// OrderedNumeric is a type bound that matches numeric types that support the < operator.
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type OrderedNumeric interface {
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type int, int8, int16, int32, int64,
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uint, uint8, uint16, uint32, uint64, uintptr,
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float32, float64
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~int | ~int8 | ~int16 | ~int32 | ~int64 |
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~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr |
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~float32 | ~float64
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}
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// Complex is a type bound that matches the two complex types, which do not have a < operator.
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type Complex interface {
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type complex64, complex128
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~complex64 | ~complex128
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}
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// OrderedAbs is a helper type that defines an Abs method for
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@ -8,28 +8,28 @@ import "strconv"
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type any interface{}
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func f0[A any, B interface{type C}, C interface{type D}, D interface{type A}](A, B, C, D)
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func f0[A any, B interface{~C}, C interface{~D}, D interface{~A}](A, B, C, D)
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func _() {
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f := f0[string]
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f("a", "b", "c", "d")
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f0("a", "b", "c", "d")
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}
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func f1[A any, B interface{type A}](A, B)
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func f1[A any, B interface{~A}](A, B)
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func _() {
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f := f1[int]
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f(int(0), int(0))
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f1(int(0), int(0))
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}
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func f2[A any, B interface{type []A}](A, B)
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func f2[A any, B interface{~[]A}](A, B)
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func _() {
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f := f2[byte]
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f(byte(0), []byte{})
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f2(byte(0), []byte{})
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}
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func f3[A any, B interface{type C}, C interface{type *A}](A, B, C)
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func f3[A any, B interface{~C}, C interface{~*A}](A, B, C)
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func _() {
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f := f3[int]
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var x int
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@ -37,7 +37,7 @@ func _() {
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f3(x, &x, &x)
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}
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func f4[A any, B interface{type []C}, C interface{type *A}](A, B, C)
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func f4[A any, B interface{~[]C}, C interface{~*A}](A, B, C)
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func _() {
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f := f4[int]
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var x int
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@ -45,14 +45,14 @@ func _() {
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f4(x, []*int{}, &x)
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}
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func f5[A interface{type struct{b B; c C}}, B any, C interface{type *B}](x B) A
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func f5[A interface{~struct{b B; c C}}, B any, C interface{~*B}](x B) A
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func _() {
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x := f5(1.2)
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var _ float64 = x.b
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var _ float64 = *x.c
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}
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func f6[A any, B interface{type struct{f []A}}](B) A
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func f6[A any, B interface{~struct{f []A}}](B) A
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func _() {
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x := f6(struct{f []string}{})
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var _ string = x
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@ -60,11 +60,11 @@ func _() {
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// TODO(gri) Need to flag invalid recursive constraints. At the
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// moment these cause infinite recursions and stack overflow.
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// func f7[A interface{type B}, B interface{type A}]()
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// func f7[A interface{type B}, B interface{~A}]()
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// More realistic examples
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func Double[S interface{ type []E }, E interface{ type int, int8, int16, int32, int64 }](s S) S {
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func Double[S interface{ ~[]E }, E interface{ ~int | ~int8 | ~int16 | ~int32 | ~int64 }](s S) S {
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r := make(S, len(s))
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for i, v := range s {
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r[i] = v + v
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@ -80,7 +80,7 @@ var _ = Double(MySlice{1})
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type Setter[B any] interface {
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Set(string)
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type *B
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~*B
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}
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func FromStrings[T interface{}, PT Setter[T]](s []string) []T {
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@ -148,15 +148,15 @@ func _[T any](r R2[T, int], p *R2[string, T]) {
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p.pm()
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}
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// An interface can (explicitly) declare at most one type list.
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// It is ok to have multiple embedded unions.
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type _ interface {
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m0()
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type int, string, bool
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type /* ERROR multiple type lists */ float32, float64
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~int | ~string | ~bool
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~float32 | ~float64
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m1()
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m2()
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type /* ERROR multiple type lists */ complex64, complex128
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type /* ERROR multiple type lists */ rune
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~complex64 | ~complex128
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~rune
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}
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// Interface type lists may contain each type at most once.
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@ -164,23 +164,24 @@ type _ interface {
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// for them to be all in a single list, and we report the error
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// as well.)
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type _ interface {
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type int, int /* ERROR duplicate term int */
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type /* ERROR multiple type lists */ int /* ERROR duplicate term int */
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~int|~int /* ERROR duplicate term int */
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~int|int /* ERROR duplicate term int */
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int|int /* ERROR duplicate term int */
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}
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type _ interface {
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type struct{f int}, struct{g int}, struct /* ERROR duplicate term */ {f int}
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~struct{f int} | ~struct{g int} | ~struct /* ERROR duplicate term */ {f int}
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}
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// Interface type lists can contain any type, incl. *Named types.
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// Verify that we use the underlying type to compute the operational type.
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type MyInt int
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func add1[T interface{type MyInt}](x T) T {
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func add1[T interface{~MyInt}](x T) T {
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return x + 1
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}
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type MyString string
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func double[T interface{type MyInt, MyString}](x T) T {
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func double[T interface{~MyInt | ~MyString}](x T) T {
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return x + x
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}
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@ -189,15 +190,15 @@ func double[T interface{type MyInt, MyString}](x T) T {
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// type lists.
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type E0 interface {
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type int, bool, string
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~int | ~bool | ~string
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}
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type E1 interface {
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type int, float64, string
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~int | ~float64 | ~string
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}
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type E2 interface {
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type float64
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~float64
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}
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type I0 interface {
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@ -246,7 +247,7 @@ var _ = f12[float64]
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type I0_ interface {
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E0
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type int
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~int
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}
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func f0_[T I0_]()
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@ -52,22 +52,22 @@ func swapswap[A, B any](a A, b B) (A, B) {
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type F[A, B any] func(A, B) (B, A)
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func min[T interface{ type int }](x, y T) T {
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func min[T interface{ ~int }](x, y T) T {
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if x < y {
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return x
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}
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return y
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}
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func _[T interface{type int, float32}](x, y T) bool { return x < y }
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func _[T interface{~int | ~float32}](x, y T) bool { return x < y }
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func _[T any](x, y T) bool { return x /* ERROR cannot compare */ < y }
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func _[T interface{type int, float32, bool}](x, y T) bool { return x /* ERROR cannot compare */ < y }
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func _[T interface{~int | ~float32 | ~bool}](x, y T) bool { return x /* ERROR cannot compare */ < y }
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func _[T C1[T]](x, y T) bool { return x /* ERROR cannot compare */ < y }
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func _[T C2[T]](x, y T) bool { return x < y }
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type C1[T any] interface{}
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type C2[T any] interface{ type int, float32 }
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type C2[T any] interface{ ~int | ~float32 }
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func new[T any]() *T {
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var x T
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@ -95,48 +95,48 @@ var _ = f3[int, rune, bool](1, struct{x rune}{}, nil)
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// indexing
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func _[T any] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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func _[T interface{ type int }] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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func _[T interface{ type string }] (x T, i int) { _ = x[i] }
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func _[T interface{ type []int }] (x T, i int) { _ = x[i] }
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func _[T interface{ type [10]int, *[20]int, map[int]int }] (x T, i int) { _ = x[i] }
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func _[T interface{ type string, []byte }] (x T, i int) { _ = x[i] }
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func _[T interface{ type []int, [1]rune }] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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func _[T interface{ type string, []rune }] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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func _[T interface{ ~int }] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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func _[T interface{ ~string }] (x T, i int) { _ = x[i] }
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func _[T interface{ ~[]int }] (x T, i int) { _ = x[i] }
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func _[T interface{ ~[10]int | ~*[20]int | ~map[int]int }] (x T, i int) { _ = x[i] }
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func _[T interface{ ~string | ~[]byte }] (x T, i int) { _ = x[i] }
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func _[T interface{ ~[]int | ~[1]rune }] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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func _[T interface{ ~string | ~[]rune }] (x T, i int) { _ = x /* ERROR "cannot index" */ [i] }
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// indexing with various combinations of map types in type lists (see issue #42616)
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func _[T interface{ type []E, map[int]E }, E any](x T, i int) { _ = x[i] }
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func _[T interface{ type []E }, E any](x T, i int) { _ = &x[i] }
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func _[T interface{ type map[int]E }, E any](x T, i int) { _, _ = x[i] } // comma-ok permitted
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func _[T interface{ type []E, map[int]E }, E any](x T, i int) { _ = &x /* ERROR cannot take address */ [i] }
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func _[T interface{ type []E, map[int]E, map[uint]E }, E any](x T, i int) { _ = x /* ERROR cannot index */ [i] } // different map element types
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func _[T interface{ type []E, map[string]E }, E any](x T, i int) { _ = x[i /* ERROR cannot use i */ ] }
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func _[T interface{ ~[]E | ~map[int]E }, E any](x T, i int) { _ = x[i] }
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func _[T interface{ ~[]E }, E any](x T, i int) { _ = &x[i] }
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func _[T interface{ ~map[int]E }, E any](x T, i int) { _, _ = x[i] } // comma-ok permitted
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func _[T interface{ ~[]E | ~map[int]E }, E any](x T, i int) { _ = &x /* ERROR cannot take address */ [i] }
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func _[T interface{ ~[]E | ~map[int]E | ~map[uint]E }, E any](x T, i int) { _ = x /* ERROR cannot index */ [i] } // different map element types
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func _[T interface{ ~[]E | ~map[string]E }, E any](x T, i int) { _ = x[i /* ERROR cannot use i */ ] }
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// slicing
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// TODO(gri) implement this
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func _[T interface{ type string }] (x T, i, j, k int) { _ = x /* ERROR invalid operation */ [i:j:k] }
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func _[T interface{ ~string }] (x T, i, j, k int) { _ = x /* ERROR invalid operation */ [i:j:k] }
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// len/cap built-ins
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func _[T any](x T) { _ = len(x /* ERROR invalid argument */ ) }
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func _[T interface{ type int }](x T) { _ = len(x /* ERROR invalid argument */ ) }
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func _[T interface{ type string, []byte, int }](x T) { _ = len(x /* ERROR invalid argument */ ) }
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func _[T interface{ type string }](x T) { _ = len(x) }
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func _[T interface{ type [10]int }](x T) { _ = len(x) }
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func _[T interface{ type []byte }](x T) { _ = len(x) }
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func _[T interface{ type map[int]int }](x T) { _ = len(x) }
|
||||
func _[T interface{ type chan int }](x T) { _ = len(x) }
|
||||
func _[T interface{ type string, []byte, chan int }](x T) { _ = len(x) }
|
||||
func _[T interface{ ~int }](x T) { _ = len(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ ~string | ~[]byte | ~int }](x T) { _ = len(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ ~string }](x T) { _ = len(x) }
|
||||
func _[T interface{ ~[10]int }](x T) { _ = len(x) }
|
||||
func _[T interface{ ~[]byte }](x T) { _ = len(x) }
|
||||
func _[T interface{ ~map[int]int }](x T) { _ = len(x) }
|
||||
func _[T interface{ ~chan int }](x T) { _ = len(x) }
|
||||
func _[T interface{ ~string | ~[]byte | ~chan int }](x T) { _ = len(x) }
|
||||
|
||||
func _[T any](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ type int }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ type string, []byte, int }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ type string }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ type [10]int }](x T) { _ = cap(x) }
|
||||
func _[T interface{ type []byte }](x T) { _ = cap(x) }
|
||||
func _[T interface{ type map[int]int }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ type chan int }](x T) { _ = cap(x) }
|
||||
func _[T interface{ type []byte, chan int }](x T) { _ = cap(x) }
|
||||
func _[T interface{ ~int }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ ~string | ~[]byte | ~int }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ ~string }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ ~[10]int }](x T) { _ = cap(x) }
|
||||
func _[T interface{ ~[]byte }](x T) { _ = cap(x) }
|
||||
func _[T interface{ ~map[int]int }](x T) { _ = cap(x /* ERROR invalid argument */ ) }
|
||||
func _[T interface{ ~chan int }](x T) { _ = cap(x) }
|
||||
func _[T interface{ ~[]byte | ~chan int }](x T) { _ = cap(x) }
|
||||
|
||||
// range iteration
|
||||
|
||||
@ -144,7 +144,7 @@ func _[T interface{}](x T) {
|
||||
for range x /* ERROR cannot range */ {}
|
||||
}
|
||||
|
||||
func _[T interface{ type string, []string }](x T) {
|
||||
func _[T interface{ ~string | ~[]string }](x T) {
|
||||
for range x {}
|
||||
for i := range x { _ = i }
|
||||
for i, _ := range x { _ = i }
|
||||
@ -156,23 +156,23 @@ func _[T interface{ type string, []string }](x T) {
|
||||
}
|
||||
|
||||
|
||||
func _[T interface{ type string, []rune, map[int]rune }](x T) {
|
||||
func _[T interface{ ~string | ~[]rune | ~map[int]rune }](x T) {
|
||||
for _, e := range x { _ = e }
|
||||
for i, e := range x { _ = i; _ = e }
|
||||
}
|
||||
|
||||
func _[T interface{ type string, []rune, map[string]rune }](x T) {
|
||||
func _[T interface{ ~string | ~[]rune | ~map[string]rune }](x T) {
|
||||
for _, e := range x { _ = e }
|
||||
for i, e := range x /* ERROR must have the same key type */ { _ = e }
|
||||
}
|
||||
|
||||
func _[T interface{ type string, chan int }](x T) {
|
||||
func _[T interface{ ~string | ~chan int }](x T) {
|
||||
for range x {}
|
||||
for i := range x { _ = i }
|
||||
for i, _ := range x { _ = i } // TODO(gri) should get an error here: channels only return one value
|
||||
}
|
||||
|
||||
func _[T interface{ type string, chan<-int }](x T) {
|
||||
func _[T interface{ ~string | ~chan<-int }](x T) {
|
||||
for i := range x /* ERROR send-only channel */ { _ = i }
|
||||
}
|
||||
|
||||
@ -400,7 +400,7 @@ func _[T any](x T) {
|
||||
}
|
||||
}
|
||||
|
||||
func _[T interface{type int}](x T) {
|
||||
func _[T interface{~int}](x T) {
|
||||
_ = x /* ERROR not an interface */ .(int)
|
||||
switch x /* ERROR not an interface */ .(type) {
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user