blob: c4ba2e258f48b1aa90139b5898c390f0259efa12 [file] [log] [blame]
package main
// Tests of 'pointsto' query.
// See go.tools/guru/guru_test.go for explanation.
// See pointsto.golden for expected query results.
const pi = 3.141 // @pointsto const "pi"
var global = new(string) // NB: ssa.Global is indirect, i.e. **string
func main() {
livecode()
// func objects
_ = main // @pointsto func-ref-main "main"
_ = (*C).f // @pointsto func-ref-*C.f "..C..f"
_ = D.f // @pointsto func-ref-D.f "D.f"
_ = I.f // @pointsto func-ref-I.f "I.f"
var d D
var i I
_ = d.f // @pointsto func-ref-d.f "d.f"
_ = i.f // @pointsto func-ref-i.f "i.f"
// var objects
anon := func() {
_ = d.f // @pointsto ref-lexical-d.f "d.f"
}
_ = anon // @pointsto ref-anon "anon"
_ = global // @pointsto ref-global "global"
// SSA affords some local flow sensitivity.
var a, b int
var x = &a // @pointsto var-def-x-1 "x"
_ = x // @pointsto var-ref-x-1 "x"
x = &b // @pointsto var-def-x-2 "x"
_ = x // @pointsto var-ref-x-2 "x"
i = new(C) // @pointsto var-ref-i-C "i"
if i != nil {
i = D{} // @pointsto var-ref-i-D "i"
}
print(i) // @pointsto var-ref-i "\\bi\\b"
m := map[string]*int{"a": &a}
mapval, _ := m["a"] // @pointsto map-lookup,ok "m..a.."
_ = mapval // @pointsto mapval "mapval"
_ = m // @pointsto m "m"
if false {
panic(3) // @pointsto builtin-panic "panic"
}
// NB: s.f is addressable per (*ssa.Program).VarValue,
// but our query concerns the object, not its address.
s := struct{ f interface{} }{f: make(chan bool)}
print(s.f) // @pointsto var-ref-s-f "s.f"
}
func livecode() {} // @pointsto func-live "livecode"
func deadcode() { // @pointsto func-dead "deadcode"
// Pointer analysis can't run on dead code.
var b = new(int) // @pointsto b "b"
_ = b
}
type I interface {
f()
}
type C int
type D struct{}
func (c *C) f() {}
func (d D) f() {}