56109b78c7
At the same time, perform a number of simplifications: - Rename go.tools directory to gotools. - Import only the go directory; all required Go analysis code and its dependencies have now been moved to this directory. llvm-svn: 225825
64 lines
934 B
Go
64 lines
934 B
Go
// +build ignore
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package main
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// Demonstration of directionality of flow edges.
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func f1() {}
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func f2() {}
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var somepred bool
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// Tracking functions.
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func flow1() {
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s := f1
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p := f2
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q := p
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r := q
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if somepred {
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r = s
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}
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print(s) // @pointsto main.f1
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print(p) // @pointsto main.f2
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print(q) // @pointsto main.f2
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print(r) // @pointsto main.f1 | main.f2
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}
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// Tracking concrete types in interfaces.
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func flow2() {
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var s interface{} = 1
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var p interface{} = "foo"
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q := p
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r := q
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if somepred {
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r = s
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}
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print(s) // @types int
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print(p) // @types string
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print(q) // @types string
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print(r) // @types int | string
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}
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var g1, g2 int
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// Tracking addresses of globals.
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func flow3() {
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s := &g1
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p := &g2
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q := p
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r := q
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if somepred {
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r = s
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}
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print(s) // @pointsto main.g1
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print(p) // @pointsto main.g2
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print(q) // @pointsto main.g2
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print(r) // @pointsto main.g2 | main.g1
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}
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func main() {
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flow1()
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flow2()
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flow3()
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}
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