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go/callgraph/rta: add rta analysis test case for multiple go packages
* use go/packages to load packages Change-Id: I6e9f81b282cddc186b4905a23ff635cd98245ac8 GitHub-Last-Rev: a859e27 GitHub-Pull-Request: #513 Reviewed-on: https://go-review.googlesource.com/c/tools/+/609576 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Tim King <taking@google.com> Reviewed-by: Alan Donovan <adonovan@google.com>
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6 changes: 4 additions & 2 deletions
6
go/callgraph/rta/testdata/iface.go → go/callgraph/rta/testdata/iface.txtar
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| -- go.mod -- | ||
| module example.com | ||
| go 1.18 | ||
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| -- iface.go -- | ||
| package main | ||
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| import ( | ||
| "example.com/subpkg" | ||
| ) | ||
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| func use(interface{}) | ||
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| // Test of interface calls. | ||
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| func main() { | ||
| use(subpkg.A(0)) | ||
| use(new(subpkg.B)) | ||
| use(subpkg.B2(0)) | ||
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| var i interface { | ||
| F() | ||
| } | ||
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| // assign an interface type with a function return interface value | ||
| i = subpkg.NewInterfaceF() | ||
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| i.F() | ||
| } | ||
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| func dead() { | ||
| use(subpkg.D(0)) | ||
| } | ||
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| // WANT: | ||
| // | ||
| // edge (*example.com/subpkg.A).F --static method call--> (example.com/subpkg.A).F | ||
| // edge (*example.com/subpkg.B2).F --static method call--> (example.com/subpkg.B2).F | ||
| // edge (*example.com/subpkg.C).F --static method call--> (example.com/subpkg.C).F | ||
| // edge init --static function call--> example.com/subpkg.init | ||
| // edge main --dynamic method call--> (*example.com/subpkg.A).F | ||
| // edge main --dynamic method call--> (*example.com/subpkg.B).F | ||
| // edge main --dynamic method call--> (*example.com/subpkg.B2).F | ||
| // edge main --dynamic method call--> (*example.com/subpkg.C).F | ||
| // edge main --dynamic method call--> (example.com/subpkg.A).F | ||
| // edge main --dynamic method call--> (example.com/subpkg.B2).F | ||
| // edge main --dynamic method call--> (example.com/subpkg.C).F | ||
| // edge main --static function call--> example.com/subpkg.NewInterfaceF | ||
| // edge main --static function call--> use | ||
| // | ||
| // reachable (*example.com/subpkg.A).F | ||
| // reachable (*example.com/subpkg.B).F | ||
| // reachable (*example.com/subpkg.B2).F | ||
| // reachable (*example.com/subpkg.C).F | ||
| // reachable (example.com/subpkg.A).F | ||
| // !reachable (example.com/subpkg.B).F | ||
| // reachable (example.com/subpkg.B2).F | ||
| // reachable (example.com/subpkg.C).F | ||
| // reachable example.com/subpkg.NewInterfaceF | ||
| // reachable example.com/subpkg.init | ||
| // !reachable (*example.com/subpkg.D).F | ||
| // !reachable (example.com/subpkg.D).F | ||
| // reachable init | ||
| // reachable main | ||
| // reachable use | ||
| // | ||
| // rtype *example.com/subpkg.A | ||
| // rtype *example.com/subpkg.B | ||
| // rtype *example.com/subpkg.B2 | ||
| // rtype *example.com/subpkg.C | ||
| // rtype example.com/subpkg.B | ||
| // rtype example.com/subpkg.A | ||
| // rtype example.com/subpkg.B2 | ||
| // rtype example.com/subpkg.C | ||
| // !rtype example.com/subpkg.D | ||
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| -- subpkg/impl.go -- | ||
| package subpkg | ||
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| type InterfaceF interface { | ||
| F() | ||
| } | ||
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| type A byte // instantiated but not a reflect type | ||
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| func (A) F() {} // reachable: exported method of reflect type | ||
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| type B int // a reflect type | ||
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| func (*B) F() {} // reachable: exported method of reflect type | ||
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| type B2 int // a reflect type, and *B2 also | ||
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| func (B2) F() {} // reachable: exported method of reflect type | ||
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| type C string | ||
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| func (C) F() {} // reachable: exported by NewInterfaceF | ||
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| func NewInterfaceF() InterfaceF { | ||
| return C("") | ||
| } | ||
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| type D uint // instantiated only in dead code | ||
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| func (*D) F() {} // unreachable |
6 changes: 4 additions & 2 deletions
6
go/callgraph/rta/testdata/reflectcall.go → go/callgraph/rta/testdata/reflectcall.txtar
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6 changes: 4 additions & 2 deletions
6
go/callgraph/rta/testdata/rtype.go → go/callgraph/rta/testdata/rtype.txtar
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