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Diffstat (limited to 'src/cmd/compile/internal/types2/testdata/examples/functions.go2')
-rw-r--r--src/cmd/compile/internal/types2/testdata/examples/functions.go228
1 files changed, 16 insertions, 12 deletions
diff --git a/src/cmd/compile/internal/types2/testdata/examples/functions.go2 b/src/cmd/compile/internal/types2/testdata/examples/functions.go2
index 154d09f528..ef8953cb43 100644
--- a/src/cmd/compile/internal/types2/testdata/examples/functions.go2
+++ b/src/cmd/compile/internal/types2/testdata/examples/functions.go2
@@ -66,7 +66,7 @@ var _ float64 = foo(42, []float64{1.0}, &s)
// Type inference works in a straight-forward manner even
// for variadic functions.
-func variadic[A, B any](A, B, ...B) int
+func variadic[A, B any](A, B, ...B) int { panic(0) }
// var _ = variadic(1) // ERROR not enough arguments
var _ = variadic(1, 2.3)
@@ -118,9 +118,9 @@ func max[T interface{ ~int }](x ...T) T {
// Thus even if a type can be inferred successfully, the function
// call may not be valid.
-func fboth[T any](chan T)
-func frecv[T any](<-chan T)
-func fsend[T any](chan<- T)
+func fboth[T any](chan T) {}
+func frecv[T any](<-chan T) {}
+func fsend[T any](chan<- T) {}
func _() {
var both chan int
@@ -140,9 +140,9 @@ func _() {
fsend(send)
}
-func ffboth[T any](func(chan T))
-func ffrecv[T any](func(<-chan T))
-func ffsend[T any](func(chan<- T))
+func ffboth[T any](func(chan T)) {}
+func ffrecv[T any](func(<-chan T)) {}
+func ffsend[T any](func(chan<- T)) {}
func _() {
var both func(chan int)
@@ -169,9 +169,9 @@ func _() {
// assignment is permitted, parameter passing is permitted as well,
// so type inference should be able to handle these cases well.
-func g1[T any]([]T)
-func g2[T any]([]T, T)
-func g3[T any](*T, ...T)
+func g1[T any]([]T) {}
+func g2[T any]([]T, T) {}
+func g3[T any](*T, ...T) {}
func _() {
type intSlize []int
@@ -195,7 +195,7 @@ func _() {
// Here's a realistic example.
-func append[T any](s []T, t ...T) []T
+func append[T any](s []T, t ...T) []T { panic(0) }
func _() {
var f func()
@@ -208,8 +208,12 @@ func _() {
// (that would indicate a slice type). Thus, generic functions cannot
// have empty type parameter lists, either. This is a syntax error.
-func h[] /* ERROR empty type parameter list */ ()
+func h[] /* ERROR empty type parameter list */ () {}
func _() {
h[] /* ERROR operand */ ()
}
+
+// Parameterized functions must have a function body.
+
+func _ /* ERROR missing function body */ [P any]()