80 lines
2.8 KiB
Go
80 lines
2.8 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package gccgoimporter
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// This is a verbatim copy of $GOROOT/src/go/internal/gccgoimporter/parser_test.go.
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import (
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"bytes"
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"go/types"
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"strings"
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"testing"
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"text/scanner"
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)
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var typeParserTests = []struct {
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id, typ, want, underlying, methods string
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}{
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{id: "foo", typ: "<type -1>", want: "int8"},
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{id: "foo", typ: "<type 1 *<type -19>>", want: "*error"},
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{id: "foo", typ: "<type 1 *any>", want: "unsafe.Pointer"},
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{id: "foo", typ: "<type 1 \"Bar\" <type 2 *<type 1>>>", want: "foo.Bar", underlying: "*foo.Bar"},
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{id: "foo", typ: "<type 1 \"bar.Foo\" \"bar\" <type -1> func (? <type 1>) M (); >", want: "bar.Foo", underlying: "int8", methods: "func (bar.Foo).M()"},
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{id: "foo", typ: "<type 1 \".bar.foo\" \"bar\" <type -1>>", want: "bar.foo", underlying: "int8"},
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{id: "foo", typ: "<type 1 []<type -1>>", want: "[]int8"},
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{id: "foo", typ: "<type 1 [42]<type -1>>", want: "[42]int8"},
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{id: "foo", typ: "<type 1 map [<type -1>] <type -2>>", want: "map[int8]int16"},
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{id: "foo", typ: "<type 1 chan <type -1>>", want: "chan int8"},
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{id: "foo", typ: "<type 1 chan <- <type -1>>", want: "<-chan int8"},
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{id: "foo", typ: "<type 1 chan -< <type -1>>", want: "chan<- int8"},
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{id: "foo", typ: "<type 1 struct { I8 <type -1>; I16 <type -2> \"i16\"; }>", want: "struct{I8 int8; I16 int16 \"i16\"}"},
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{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}"},
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{id: "foo", typ: "<type 1 (? <type -1>) <type -2>>", want: "func(int8) int16"},
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}
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func TestTypeParser(t *testing.T) {
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for _, test := range typeParserTests {
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var p parser
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p.init("test.gox", strings.NewReader(test.typ), make(map[string]*types.Package))
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p.pkgname = test.id
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p.pkgpath = test.id
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p.maybeCreatePackage()
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typ := p.parseType(p.pkg)
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if p.tok != scanner.EOF {
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t.Errorf("expected full parse, stopped at %q", p.lit)
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}
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// interfaces must be explicitly completed
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if ityp, _ := typ.(*types.Interface); ityp != nil {
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ityp.Complete()
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}
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got := typ.String()
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if got != test.want {
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t.Errorf("got type %q, expected %q", got, test.want)
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}
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if test.underlying != "" {
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underlying := typ.Underlying().String()
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if underlying != test.underlying {
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t.Errorf("got underlying type %q, expected %q", underlying, test.underlying)
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}
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}
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if test.methods != "" {
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nt := typ.(*types.Named)
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var buf bytes.Buffer
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for i := 0; i != nt.NumMethods(); i++ {
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buf.WriteString(nt.Method(i).String())
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}
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methods := buf.String()
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if methods != test.methods {
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t.Errorf("got methods %q, expected %q", methods, test.methods)
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}
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}
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}
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}
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