1 // Copyright 2013 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package gccgoimporter 6 7 import ( 8 "bytes" 9 "go/types" 10 "strings" 11 "testing" 12 "text/scanner" 13 ) 14 15 var typeParserTests = []struct { 16 id, typ, want, underlying, methods string 17 }{ 18 {id: "foo", typ: "<type -1>", want: "int8"}, 19 {id: "foo", typ: "<type 1 *<type -19>>", want: "*error"}, 20 {id: "foo", typ: "<type 1 *any>", want: "unsafe.Pointer"}, 21 {id: "foo", typ: "<type 1 \"Bar\" <type 2 *<type 1>>>", want: "foo.Bar", underlying: "*foo.Bar"}, 22 {id: "foo", typ: "<type 1 \"bar.Foo\" \"bar\" <type -1> func (? <type 1>) M (); >", want: "bar.Foo", underlying: "int8", methods: "func (bar.Foo).M()"}, 23 {id: "foo", typ: "<type 1 \".bar.foo\" \"bar\" <type -1>>", want: "bar.foo", underlying: "int8"}, 24 {id: "foo", typ: "<type 1 []<type -1>>", want: "[]int8"}, 25 {id: "foo", typ: "<type 1 [42]<type -1>>", want: "[42]int8"}, 26 {id: "foo", typ: "<type 1 map [<type -1>] <type -2>>", want: "map[int8]int16"}, 27 {id: "foo", typ: "<type 1 chan <type -1>>", want: "chan int8"}, 28 {id: "foo", typ: "<type 1 chan <- <type -1>>", want: "<-chan int8"}, 29 {id: "foo", typ: "<type 1 chan -< <type -1>>", want: "chan<- int8"}, 30 {id: "foo", typ: "<type 1 struct { I8 <type -1>; I16 <type -2> \"i16\"; }>", want: "struct{I8 int8; I16 int16 \"i16\"}"}, 31 {id: "foo", typ: "<type 1 interface { Foo (a <type -1>, b <type -2>) <type -1>; Bar (? <type -2>, ? ...<type -1>) (? <type -2>, ? <type -1>); Baz (); }>", want: "interface{Bar(int16, ...int8) (int16, int8); Baz(); Foo(a int8, b int16) int8}"}, 32 {id: "foo", typ: "<type 1 (? <type -1>) <type -2>>", want: "func(int8) int16"}, 33 } 34 35 func TestTypeParser(t *testing.T) { 36 for _, test := range typeParserTests { 37 var p parser 38 p.init("test.gox", strings.NewReader(test.typ), make(map[string]*types.Package)) 39 p.pkgname = test.id 40 p.pkgpath = test.id 41 p.maybeCreatePackage() 42 typ := p.parseType(p.pkg) 43 44 if p.tok != scanner.EOF { 45 t.Errorf("expected full parse, stopped at %q", p.lit) 46 } 47 48 // interfaces must be explicitly completed 49 if ityp, _ := typ.(*types.Interface); ityp != nil { 50 ityp.Complete() 51 } 52 53 got := typ.String() 54 if got != test.want { 55 t.Errorf("got type %q, expected %q", got, test.want) 56 } 57 58 if test.underlying != "" { 59 underlying := typ.Underlying().String() 60 if underlying != test.underlying { 61 t.Errorf("got underlying type %q, expected %q", underlying, test.underlying) 62 } 63 } 64 65 if test.methods != "" { 66 nt := typ.(*types.Named) 67 var buf bytes.Buffer 68 for i := 0; i != nt.NumMethods(); i++ { 69 buf.WriteString(nt.Method(i).String()) 70 } 71 methods := buf.String() 72 if methods != test.methods { 73 t.Errorf("got methods %q, expected %q", methods, test.methods) 74 } 75 } 76 } 77 } 78
