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go/types, types2: consolidate testdata/spec test files

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Besides applying gofmt (which doesn't damage the tests in this case),
this removes a TODO for a set of nil-related tests.

The test files are now identical.

For #54511.

Change-Id: I0a286ad607f317f43972c1f5ee741b4f5bc9576d
Reviewed-on: https://go-review.googlesource.com/c/go/+/424675
Run-TryBot: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
This commit is contained in:
Robert Griesemer 2022-08-17 18:23:04 -07:00 committed by Robert Griesemer
parent 9ad772033f
commit 17211c355f
4 changed files with 190 additions and 128 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/cmd/compile/internal/types2/testdata/spec/assignability.go vendored
View File

@ -92,20 +92,20 @@ func _[
var (
_ _SendChan = c
_ _RecvChan = c
_ _Chan = c
_ _Chan = c
_ _SendChan = C
_ _RecvChan = C
_ _Chan = C
_ _Chan = C
_ SendChan = c
_ RecvChan = c
_ Chan = c
_ Chan = c
_ SendChan = C // ERROR cannot use C .* as SendChan value
_ RecvChan = C // ERROR cannot use C .* as RecvChan value
_ Chan = C
_ Chan = make /* ERROR cannot use make\(chan Basic\) .* as Chan value */ (chan Basic)
_ Chan = C
_ Chan = make /* ERROR cannot use make\(chan Basic\) .* as Chan value */ (chan Basic)
)
var (
@ -183,13 +183,13 @@ func _[
Int16 ~int16,
Int32 ~int32,
Int64 ~int64,
Int8_16 ~int8 | ~int16,
Int8_16 ~int8 | ~int16,
](
i8 Int8,
i16 Int16,
i32 Int32,
i64 Int64,
i8_16 Int8_16,
i8_16 Int8_16,
) {
b = 42
b = 42.0

144
src/cmd/compile/internal/types2/testdata/spec/conversions.go vendored
View File

@ -17,14 +17,14 @@ func _[T ~byte]() {
var _ T = 256 // ERROR cannot use 256 .* as T value
}
func _[T ~string]() T { return T('a') }
func _[T ~int | ~string]() T { return T('a') }
func _[T ~byte | ~int | ~string]() T { return T(256 /* ERROR cannot convert 256 .* to T */ ) }
func _[T ~string]() T { return T('a') }
func _[T ~int | ~string]() T { return T('a') }
func _[T ~byte | ~int | ~string]() T { return T(256 /* ERROR cannot convert 256 .* to T */) }
// implicit conversions never convert to string
func _[T ~string]() {
var _ string = 0 // ERROR cannot use .* as string value
var _ T = 0 // ERROR cannot use .* as T value
var _ T = 0 // ERROR cannot use .* as T value
}
// failing const conversions of constants to type parameters report a cause
@ -34,10 +34,10 @@ func _[
T3 ~int | ~float64 | ~bool,
T4 ~int | ~string,
]() {
_ = T1(0 /* ERROR cannot convert 0 .* to T1\n\tT1 does not contain specific types */ )
_ = T2(1 /* ERROR cannot convert 1 .* to T2\n\tT2 does not contain specific types */ )
_ = T3(2 /* ERROR cannot convert 2 .* to T3\n\tcannot convert 2 .* to bool \(in T3\) */ )
_ = T4(3.14 /* ERROR cannot convert 3.14 .* to T4\n\tcannot convert 3.14 .* to int \(in T4\) */ )
_ = T1(0 /* ERROR cannot convert 0 .* to T1\n\tT1 does not contain specific types */)
_ = T2(1 /* ERROR cannot convert 1 .* to T2\n\tT2 does not contain specific types */)
_ = T3(2 /* ERROR cannot convert 2 .* to T3\n\tcannot convert 2 .* to bool \(in T3\) */)
_ = T4(3.14 /* ERROR cannot convert 3.14 .* to T4\n\tcannot convert 3.14 .* to int \(in T4\) */)
}
// "x is assignable to T"
@ -46,111 +46,143 @@ func _[
// "x's type and T have identical underlying types if tags are ignored"
func _[X ~int, T ~int](x X) T { return T(x) }
func _[X struct{f int "foo"}, T struct{f int "bar"}](x X) T { return T(x) }
func _[X struct {
f int "foo"
}, T struct {
f int "bar"
}](x X) T {
return T(x)
}
type Foo struct{f int "foo"}
type Bar struct{f int "bar"}
type Far struct{f float64 }
type Foo struct {
f int "foo"
}
type Bar struct {
f int "bar"
}
type Far struct{ f float64 }
func _[X Foo, T Bar](x X) T { return T(x) }
func _[X Foo|Bar, T Bar](x X) T { return T(x) }
func _[X Foo, T Foo|Bar](x X) T { return T(x) }
func _[X Foo, T Far](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Foo\) to T\n\tcannot convert Foo \(in X\) to Far \(in T\) */ ) }
func _[X Foo, T Bar](x X) T { return T(x) }
func _[X Foo | Bar, T Bar](x X) T { return T(x) }
func _[X Foo, T Foo | Bar](x X) T { return T(x) }
func _[X Foo, T Far](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Foo\) to T\n\tcannot convert Foo \(in X\) to Far \(in T\) */)
}
// "x's type and T are unnamed pointer types and their pointer base types
// have identical underlying types if tags are ignored"
func _[X ~*Foo, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo|~*Bar, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Foo|~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Far](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*Foo\) to T\n\tcannot convert \*Foo \(in X\) to \*Far \(in T\) */ ) }
func _[X ~*Foo, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo | ~*Bar, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Foo | ~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Far](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*Foo\) to T\n\tcannot convert \*Foo \(in X\) to \*Far \(in T\) */)
}
// Verify that the defined types in constraints are considered for the rule above.
type (
B int
C int
B int
C int
X0 *B
T0 *C
)
func _(x X0) T0 { return T0(x /* ERROR cannot convert */ ) } // non-generic reference
func _[X X0, T T0](x X) T { return T(x /* ERROR cannot convert */ ) }
func _[T T0](x X0) T { return T(x /* ERROR cannot convert */ ) }
func _[X X0](x X) T0 { return T0(x /* ERROR cannot convert */ ) }
func _(x X0) T0 { return T0(x /* ERROR cannot convert */) } // non-generic reference
func _[X X0, T T0](x X) T { return T(x /* ERROR cannot convert */) }
func _[T T0](x X0) T { return T(x /* ERROR cannot convert */) }
func _[X X0](x X) T0 { return T0(x /* ERROR cannot convert */) }
// "x's type and T are both integer or floating point types"
func _[X Integer, T Integer](x X) T { return T(x) }
func _[X Integer, T Integer](x X) T { return T(x) }
func _[X Unsigned, T Integer](x X) T { return T(x) }
func _[X Float, T Integer](x X) T { return T(x) }
func _[X Float, T Integer](x X) T { return T(x) }
func _[X Integer, T Unsigned](x X) T { return T(x) }
func _[X Integer, T Unsigned](x X) T { return T(x) }
func _[X Unsigned, T Unsigned](x X) T { return T(x) }
func _[X Float, T Unsigned](x X) T { return T(x) }
func _[X Float, T Unsigned](x X) T { return T(x) }
func _[X Integer, T Float](x X) T { return T(x) }
func _[X Integer, T Float](x X) T { return T(x) }
func _[X Unsigned, T Float](x X) T { return T(x) }
func _[X Float, T Float](x X) T { return T(x) }
func _[X Float, T Float](x X) T { return T(x) }
func _[X, T Integer|Unsigned|Float](x X) T { return T(x) }
func _[X, T Integer|~string](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~string\) to T\n\tcannot convert string \(in X\) to int \(in T\) */ ) }
func _[X, T Integer | Unsigned | Float](x X) T { return T(x) }
func _[X, T Integer | ~string](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~string\) to T\n\tcannot convert string \(in X\) to int \(in T\) */)
}
// "x's type and T are both complex types"
func _[X, T Complex](x X) T { return T(x) }
func _[X, T Float|Complex](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Float\|Complex\) to T\n\tcannot convert float32 \(in X\) to complex64 \(in T\) */ ) }
func _[X, T Float | Complex](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Float\|Complex\) to T\n\tcannot convert float32 \(in X\) to complex64 \(in T\) */)
}
// "x is an integer or a slice of bytes or runes and T is a string type"
type myInt int
type myString string
func _[T ~string](x int) T { return T(x) }
func _[T ~string](x myInt) T { return T(x) }
func _[X Integer](x X) string { return string(x) }
func _[T ~string](x int) T { return T(x) }
func _[T ~string](x myInt) T { return T(x) }
func _[X Integer](x X) string { return string(x) }
func _[X Integer](x X) myString { return myString(x) }
func _[X Integer](x X) *string { return (*string)(x /* ERROR cannot convert x \(variable of type X constrained by Integer\) to \*string\n\tcannot convert int \(in X\) to \*string */ ) }
func _[X Integer](x X) *string {
return (*string)(x /* ERROR cannot convert x \(variable of type X constrained by Integer\) to \*string\n\tcannot convert int \(in X\) to \*string */)
}
func _[T ~string](x []byte) T { return T(x) }
func _[T ~string](x []rune) T { return T(x) }
func _[X ~[]byte, T ~string](x X) T { return T(x) }
func _[X ~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer|~[]byte|~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer|~[]byte|~[]rune, T ~*string](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~\[\]byte\|~\[\]rune\) to T\n\tcannot convert int \(in X\) to \*string \(in T\) */ ) }
func _[T ~string](x []byte) T { return T(x) }
func _[T ~string](x []rune) T { return T(x) }
func _[X ~[]byte, T ~string](x X) T { return T(x) }
func _[X ~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer | ~[]byte | ~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer | ~[]byte | ~[]rune, T ~*string](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~\[\]byte\|~\[\]rune\) to T\n\tcannot convert int \(in X\) to \*string \(in T\) */)
}
// "x is a string and T is a slice of bytes or runes"
func _[T ~[]byte](x string) T { return T(x) }
func _[T ~[]rune](x string) T { return T(x) }
func _[T ~[]rune](x *string) T { return T(x /* ERROR cannot convert x \(variable of type \*string\) to T\n\tcannot convert \*string to \[\]rune \(in T\) */ ) }
func _[T ~[]rune](x *string) T {
return T(x /* ERROR cannot convert x \(variable of type \*string\) to T\n\tcannot convert \*string to \[\]rune \(in T\) */)
}
func _[X ~string, T ~[]byte](x X) T { return T(x) }
func _[X ~string, T ~[]rune](x X) T { return T(x) }
func _[X ~string, T ~[]byte|~[]rune](x X) T { return T(x) }
func _[X ~*string, T ~[]byte|~[]rune](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*string\) to T\n\tcannot convert \*string \(in X\) to \[\]byte \(in T\) */ ) }
func _[X ~string, T ~[]byte](x X) T { return T(x) }
func _[X ~string, T ~[]rune](x X) T { return T(x) }
func _[X ~string, T ~[]byte | ~[]rune](x X) T { return T(x) }
func _[X ~*string, T ~[]byte | ~[]rune](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*string\) to T\n\tcannot convert \*string \(in X\) to \[\]byte \(in T\) */)
}
// package unsafe:
// "any pointer or value of underlying type uintptr can be converted into a unsafe.Pointer"
type myUintptr uintptr
func _[X ~uintptr](x X) unsafe.Pointer { return unsafe.Pointer(x) }
func _[X ~uintptr](x X) unsafe.Pointer { return unsafe.Pointer(x) }
func _[T unsafe.Pointer](x myUintptr) T { return T(x) }
func _[T unsafe.Pointer](x int64) T { return T(x /* ERROR cannot convert x \(variable of type int64\) to T\n\tcannot convert int64 to unsafe\.Pointer \(in T\) */ ) }
func _[T unsafe.Pointer](x int64) T {
return T(x /* ERROR cannot convert x \(variable of type int64\) to T\n\tcannot convert int64 to unsafe\.Pointer \(in T\) */)
}
// "and vice versa"
func _[T ~uintptr](x unsafe.Pointer) T { return T(x) }
func _[X unsafe.Pointer](x X) uintptr { return uintptr(x) }
func _[T ~uintptr](x unsafe.Pointer) T { return T(x) }
func _[X unsafe.Pointer](x X) uintptr { return uintptr(x) }
func _[X unsafe.Pointer](x X) myUintptr { return myUintptr(x) }
func _[X unsafe.Pointer](x X) int64 { return int64(x /* ERROR cannot convert x \(variable of type X constrained by unsafe\.Pointer\) to int64\n\tcannot convert unsafe\.Pointer \(in X\) to int64 */ ) }
func _[X unsafe.Pointer](x X) int64 {
return int64(x /* ERROR cannot convert x \(variable of type X constrained by unsafe\.Pointer\) to int64\n\tcannot convert unsafe\.Pointer \(in X\) to int64 */)
}
// "x is a slice, T is a pointer-to-array type,
// and the slice and array types have identical element types."
func _[X ~[]E, T ~*[10]E, E any](x X) T { return T(x) }
func _[X ~[]E, T ~[10]E, E any](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\[\]E\) to T\n\tcannot convert \[\]E \(in X\) to \[10\]E \(in T\) */ ) }
func _[X ~[]E, T ~[10]E, E any](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\[\]E\) to T\n\tcannot convert \[\]E \(in X\) to \[10\]E \(in T\) */)
}
// ----------------------------------------------------------------------------
// The following declarations can be replaced by the exported types of the

16
src/go/types/testdata/spec/assignability.go vendored
View File

@ -92,20 +92,20 @@ func _[
var (
_ _SendChan = c
_ _RecvChan = c
_ _Chan = c
_ _Chan = c
_ _SendChan = C
_ _RecvChan = C
_ _Chan = C
_ _Chan = C
_ SendChan = c
_ RecvChan = c
_ Chan = c
_ Chan = c
_ SendChan = C // ERROR cannot use C .* as SendChan value
_ RecvChan = C // ERROR cannot use C .* as RecvChan value
_ Chan = C
_ Chan = make /* ERROR cannot use make\(chan Basic\) .* as Chan value */ (chan Basic)
_ Chan = C
_ Chan = make /* ERROR cannot use make\(chan Basic\) .* as Chan value */ (chan Basic)
)
var (
@ -152,8 +152,6 @@ func _[
}
// "x is the predeclared identifier nil and T is a pointer, function, slice, map, channel, or interface type"
// TODO(rfindley) error messages about untyped nil diverge from types2 here.
// Consider aligning them.
func _[TP Interface](X TP) {
b = nil // ERROR cannot use nil
a = nil // ERROR cannot use nil
@ -185,13 +183,13 @@ func _[
Int16 ~int16,
Int32 ~int32,
Int64 ~int64,
Int8_16 ~int8 | ~int16,
Int8_16 ~int8 | ~int16,
](
i8 Int8,
i16 Int16,
i32 Int32,
i64 Int64,
i8_16 Int8_16,
i8_16 Int8_16,
) {
b = 42
b = 42.0

144
src/go/types/testdata/spec/conversions.go vendored
View File

@ -17,14 +17,14 @@ func _[T ~byte]() {
var _ T = 256 // ERROR cannot use 256 .* as T value
}
func _[T ~string]() T { return T('a') }
func _[T ~int | ~string]() T { return T('a') }
func _[T ~byte | ~int | ~string]() T { return T(256 /* ERROR cannot convert 256 .* to T */ ) }
func _[T ~string]() T { return T('a') }
func _[T ~int | ~string]() T { return T('a') }
func _[T ~byte | ~int | ~string]() T { return T(256 /* ERROR cannot convert 256 .* to T */) }
// implicit conversions never convert to string
func _[T ~string]() {
var _ string = 0 // ERROR cannot use .* as string value
var _ T = 0 // ERROR cannot use .* as T value
var _ T = 0 // ERROR cannot use .* as T value
}
// failing const conversions of constants to type parameters report a cause
@ -34,10 +34,10 @@ func _[
T3 ~int | ~float64 | ~bool,
T4 ~int | ~string,
]() {
_ = T1(0 /* ERROR cannot convert 0 .* to T1\n\tT1 does not contain specific types */ )
_ = T2(1 /* ERROR cannot convert 1 .* to T2\n\tT2 does not contain specific types */ )
_ = T3(2 /* ERROR cannot convert 2 .* to T3\n\tcannot convert 2 .* to bool \(in T3\) */ )
_ = T4(3.14 /* ERROR cannot convert 3.14 .* to T4\n\tcannot convert 3.14 .* to int \(in T4\) */ )
_ = T1(0 /* ERROR cannot convert 0 .* to T1\n\tT1 does not contain specific types */)
_ = T2(1 /* ERROR cannot convert 1 .* to T2\n\tT2 does not contain specific types */)
_ = T3(2 /* ERROR cannot convert 2 .* to T3\n\tcannot convert 2 .* to bool \(in T3\) */)
_ = T4(3.14 /* ERROR cannot convert 3.14 .* to T4\n\tcannot convert 3.14 .* to int \(in T4\) */)
}
// "x is assignable to T"
@ -46,111 +46,143 @@ func _[
// "x's type and T have identical underlying types if tags are ignored"
func _[X ~int, T ~int](x X) T { return T(x) }
func _[X struct{f int "foo"}, T struct{f int "bar"}](x X) T { return T(x) }
func _[X struct {
f int "foo"
}, T struct {
f int "bar"
}](x X) T {
return T(x)
}
type Foo struct{f int "foo"}
type Bar struct{f int "bar"}
type Far struct{f float64 }
type Foo struct {
f int "foo"
}
type Bar struct {
f int "bar"
}
type Far struct{ f float64 }
func _[X Foo, T Bar](x X) T { return T(x) }
func _[X Foo|Bar, T Bar](x X) T { return T(x) }
func _[X Foo, T Foo|Bar](x X) T { return T(x) }
func _[X Foo, T Far](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Foo\) to T\n\tcannot convert Foo \(in X\) to Far \(in T\) */ ) }
func _[X Foo, T Bar](x X) T { return T(x) }
func _[X Foo | Bar, T Bar](x X) T { return T(x) }
func _[X Foo, T Foo | Bar](x X) T { return T(x) }
func _[X Foo, T Far](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Foo\) to T\n\tcannot convert Foo \(in X\) to Far \(in T\) */)
}
// "x's type and T are unnamed pointer types and their pointer base types
// have identical underlying types if tags are ignored"
func _[X ~*Foo, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo|~*Bar, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Foo|~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Far](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*Foo\) to T\n\tcannot convert \*Foo \(in X\) to \*Far \(in T\) */ ) }
func _[X ~*Foo, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo | ~*Bar, T ~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Foo | ~*Bar](x X) T { return T(x) }
func _[X ~*Foo, T ~*Far](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*Foo\) to T\n\tcannot convert \*Foo \(in X\) to \*Far \(in T\) */)
}
// Verify that the defined types in constraints are considered for the rule above.
type (
B int
C int
B int
C int
X0 *B
T0 *C
)
func _(x X0) T0 { return T0(x /* ERROR cannot convert */ ) } // non-generic reference
func _[X X0, T T0](x X) T { return T(x /* ERROR cannot convert */ ) }
func _[T T0](x X0) T { return T(x /* ERROR cannot convert */ ) }
func _[X X0](x X) T0 { return T0(x /* ERROR cannot convert */ ) }
func _(x X0) T0 { return T0(x /* ERROR cannot convert */) } // non-generic reference
func _[X X0, T T0](x X) T { return T(x /* ERROR cannot convert */) }
func _[T T0](x X0) T { return T(x /* ERROR cannot convert */) }
func _[X X0](x X) T0 { return T0(x /* ERROR cannot convert */) }
// "x's type and T are both integer or floating point types"
func _[X Integer, T Integer](x X) T { return T(x) }
func _[X Integer, T Integer](x X) T { return T(x) }
func _[X Unsigned, T Integer](x X) T { return T(x) }
func _[X Float, T Integer](x X) T { return T(x) }
func _[X Float, T Integer](x X) T { return T(x) }
func _[X Integer, T Unsigned](x X) T { return T(x) }
func _[X Integer, T Unsigned](x X) T { return T(x) }
func _[X Unsigned, T Unsigned](x X) T { return T(x) }
func _[X Float, T Unsigned](x X) T { return T(x) }
func _[X Float, T Unsigned](x X) T { return T(x) }
func _[X Integer, T Float](x X) T { return T(x) }
func _[X Integer, T Float](x X) T { return T(x) }
func _[X Unsigned, T Float](x X) T { return T(x) }
func _[X Float, T Float](x X) T { return T(x) }
func _[X Float, T Float](x X) T { return T(x) }
func _[X, T Integer|Unsigned|Float](x X) T { return T(x) }
func _[X, T Integer|~string](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~string\) to T\n\tcannot convert string \(in X\) to int \(in T\) */ ) }
func _[X, T Integer | Unsigned | Float](x X) T { return T(x) }
func _[X, T Integer | ~string](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~string\) to T\n\tcannot convert string \(in X\) to int \(in T\) */)
}
// "x's type and T are both complex types"
func _[X, T Complex](x X) T { return T(x) }
func _[X, T Float|Complex](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Float\|Complex\) to T\n\tcannot convert float32 \(in X\) to complex64 \(in T\) */ ) }
func _[X, T Float | Complex](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Float\|Complex\) to T\n\tcannot convert float32 \(in X\) to complex64 \(in T\) */)
}
// "x is an integer or a slice of bytes or runes and T is a string type"
type myInt int
type myString string
func _[T ~string](x int) T { return T(x) }
func _[T ~string](x myInt) T { return T(x) }
func _[X Integer](x X) string { return string(x) }
func _[T ~string](x int) T { return T(x) }
func _[T ~string](x myInt) T { return T(x) }
func _[X Integer](x X) string { return string(x) }
func _[X Integer](x X) myString { return myString(x) }
func _[X Integer](x X) *string { return (*string)(x /* ERROR cannot convert x \(variable of type X constrained by Integer\) to \*string\n\tcannot convert int \(in X\) to \*string */ ) }
func _[X Integer](x X) *string {
return (*string)(x /* ERROR cannot convert x \(variable of type X constrained by Integer\) to \*string\n\tcannot convert int \(in X\) to \*string */)
}
func _[T ~string](x []byte) T { return T(x) }
func _[T ~string](x []rune) T { return T(x) }
func _[X ~[]byte, T ~string](x X) T { return T(x) }
func _[X ~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer|~[]byte|~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer|~[]byte|~[]rune, T ~*string](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~\[\]byte\|~\[\]rune\) to T\n\tcannot convert int \(in X\) to \*string \(in T\) */ ) }
func _[T ~string](x []byte) T { return T(x) }
func _[T ~string](x []rune) T { return T(x) }
func _[X ~[]byte, T ~string](x X) T { return T(x) }
func _[X ~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer | ~[]byte | ~[]rune, T ~string](x X) T { return T(x) }
func _[X Integer | ~[]byte | ~[]rune, T ~*string](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by Integer\|~\[\]byte\|~\[\]rune\) to T\n\tcannot convert int \(in X\) to \*string \(in T\) */)
}
// "x is a string and T is a slice of bytes or runes"
func _[T ~[]byte](x string) T { return T(x) }
func _[T ~[]rune](x string) T { return T(x) }
func _[T ~[]rune](x *string) T { return T(x /* ERROR cannot convert x \(variable of type \*string\) to T\n\tcannot convert \*string to \[\]rune \(in T\) */ ) }
func _[T ~[]rune](x *string) T {
return T(x /* ERROR cannot convert x \(variable of type \*string\) to T\n\tcannot convert \*string to \[\]rune \(in T\) */)
}
func _[X ~string, T ~[]byte](x X) T { return T(x) }
func _[X ~string, T ~[]rune](x X) T { return T(x) }
func _[X ~string, T ~[]byte|~[]rune](x X) T { return T(x) }
func _[X ~*string, T ~[]byte|~[]rune](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*string\) to T\n\tcannot convert \*string \(in X\) to \[\]byte \(in T\) */ ) }
func _[X ~string, T ~[]byte](x X) T { return T(x) }
func _[X ~string, T ~[]rune](x X) T { return T(x) }
func _[X ~string, T ~[]byte | ~[]rune](x X) T { return T(x) }
func _[X ~*string, T ~[]byte | ~[]rune](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\*string\) to T\n\tcannot convert \*string \(in X\) to \[\]byte \(in T\) */)
}
// package unsafe:
// "any pointer or value of underlying type uintptr can be converted into a unsafe.Pointer"
type myUintptr uintptr
func _[X ~uintptr](x X) unsafe.Pointer { return unsafe.Pointer(x) }
func _[X ~uintptr](x X) unsafe.Pointer { return unsafe.Pointer(x) }
func _[T unsafe.Pointer](x myUintptr) T { return T(x) }
func _[T unsafe.Pointer](x int64) T { return T(x /* ERROR cannot convert x \(variable of type int64\) to T\n\tcannot convert int64 to unsafe\.Pointer \(in T\) */ ) }
func _[T unsafe.Pointer](x int64) T {
return T(x /* ERROR cannot convert x \(variable of type int64\) to T\n\tcannot convert int64 to unsafe\.Pointer \(in T\) */)
}
// "and vice versa"
func _[T ~uintptr](x unsafe.Pointer) T { return T(x) }
func _[X unsafe.Pointer](x X) uintptr { return uintptr(x) }
func _[T ~uintptr](x unsafe.Pointer) T { return T(x) }
func _[X unsafe.Pointer](x X) uintptr { return uintptr(x) }
func _[X unsafe.Pointer](x X) myUintptr { return myUintptr(x) }
func _[X unsafe.Pointer](x X) int64 { return int64(x /* ERROR cannot convert x \(variable of type X constrained by unsafe\.Pointer\) to int64\n\tcannot convert unsafe\.Pointer \(in X\) to int64 */ ) }
func _[X unsafe.Pointer](x X) int64 {
return int64(x /* ERROR cannot convert x \(variable of type X constrained by unsafe\.Pointer\) to int64\n\tcannot convert unsafe\.Pointer \(in X\) to int64 */)
}
// "x is a slice, T is a pointer-to-array type,
// and the slice and array types have identical element types."
func _[X ~[]E, T ~*[10]E, E any](x X) T { return T(x) }
func _[X ~[]E, T ~[10]E, E any](x X) T { return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\[\]E\) to T\n\tcannot convert \[\]E \(in X\) to \[10\]E \(in T\) */ ) }
func _[X ~[]E, T ~[10]E, E any](x X) T {
return T(x /* ERROR cannot convert x \(variable of type X constrained by ~\[\]E\) to T\n\tcannot convert \[\]E \(in X\) to \[10\]E \(in T\) */)
}
// ----------------------------------------------------------------------------
// The following declarations can be replaced by the exported types of the