+++ /dev/null
-// +build ignore
-
-package main
-
-// Test of maps.
-
-var a, b, c int
-
-func maps1() {
- m1 := map[*int]*int{&a: &b} // @line m1m1
- m2 := make(map[*int]*int) // @line m1m2
- m2[&b] = &a
-
- print(m1[nil]) // @pointsto main.b | main.c
- print(m2[nil]) // @pointsto main.a
-
- print(m1) // @pointsto makemap@m1m1:21
- print(m2) // @pointsto makemap@m1m2:12
-
- m1[&b] = &c
-
- for k, v := range m1 {
- print(k) // @pointsto main.a | main.b
- print(v) // @pointsto main.b | main.c
- }
-
- for k, v := range m2 {
- print(k) // @pointsto main.b
- print(v) // @pointsto main.a
- }
-
- // Lookup doesn't create any aliases.
- print(m2[&c]) // @pointsto main.a
- if _, ok := m2[&a]; ok {
- print(m2[&c]) // @pointsto main.a
- }
-}
-
-func maps2() {
- m1 := map[*int]*int{&a: &b}
- m2 := map[*int]*int{&b: &c}
- _ = []map[*int]*int{m1, m2} // (no spurious merging of m1, m2)
-
- print(m1[nil]) // @pointsto main.b
- print(m2[nil]) // @pointsto main.c
-}
-
-var g int
-
-func maps3() {
- // Regression test for a constraint generation bug for map range
- // loops in which the key is unused: the (ok, k, v) tuple
- // returned by ssa.Next may have type 'invalid' for the k and/or
- // v components, so copying the map key or value may cause
- // miswiring if the key has >1 components. In the worst case,
- // this causes a crash. The test below used to report that
- // pts(v) includes not just main.g but new(float64) too, which
- // is ill-typed.
-
- // sizeof(K) > 1, abstractly
- type K struct{ a, b *float64 }
- k := K{new(float64), nil}
- m := map[K]*int{k: &g}
-
- for _, v := range m {
- print(v) // @pointsto main.g
- }
-}
-
-func main() {
- maps1()
- maps2()
- maps3()
-}