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// +build ignore
package main
// Demonstration of directionality of flow edges.
func f1() {}
func f2() {}
var somepred bool
// Tracking functions.
func flow1() {
s := f1
p := f2
q := p
r := q
if somepred {
r = s
}
print(s) // @pointsto main.f1
print(p) // @pointsto main.f2
print(q) // @pointsto main.f2
print(r) // @pointsto main.f1 | main.f2
}
// Tracking concrete types in interfaces.
func flow2() {
var s interface{} = 1
var p interface{} = "foo"
q := p
r := q
if somepred {
r = s
}
print(s) // @types int
print(p) // @types string
print(q) // @types string
print(r) // @types int | string
}
var g1, g2 int
// Tracking addresses of globals.
func flow3() {
s := &g1
p := &g2
q := p
r := q
if somepred {
r = s
}
print(s) // @pointsto main.g1
print(p) // @pointsto main.g2
print(q) // @pointsto main.g2
print(r) // @pointsto main.g2 | main.g1
}
func main() {
flow1()
flow2()
flow3()
}
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