chore: move to new organization

As per https://golang.org/cmd/go/#hdr-Build_constraints,
using GOOS=android also matches tags and files for GOOS=linux,
so exclude it explicetly to avoid collisions.

Also using GOOS=illumos matches tags and files for GOOS=solaris.

Fixes #843.

.goreleaser.yml

@@ -3,7 +3,7 @@ project_name: yaegi
 builds:
   - id: yaegi
     binary: yaegi
-    main: ./cmd/yaegi/yaegi.go
+    main: ./cmd/yaegi/
 
     goos:
       - darwin
@@ -28,7 +28,7 @@ builds:
 
   - id: goexports
     binary: goexports
-    main: ./cmd/goexports/goexports.go
+    main: ./cmd/goexports/
 
     goos:
       - darwin

.travis.yml

@@ -27,7 +27,7 @@ env:
   global:
     - GO111MODULE=on
 
-go_import_path: github.com/containous/yaegi
+go_import_path: github.com/traefik/yaegi
 
 before_install:
   # Install linters and misspell

CONTRIBUTING.md

@@ -3,7 +3,7 @@
 Yaegi is an open source project, and your feedback and contributions
 are needed and always welcome.
 
-[Issues] and [Pull Requests] are opened at https://github.com/containous/yaegi.
+[Issues] and [Pull Requests] are opened at https://github.com/traefik/yaegi.
 
 Non trivial changes should be discussed with the project maintainers by
 opening a [Feature Request] clearly explaining rationale, background
@@ -13,12 +13,12 @@ discussions.
 Once the proposal is approved, a Pull Request can be opened. If you want
 to provide early visibility to reviewers, create a [Draft Pull Request].
 
-We will also require you to sign the [Containous Contributor License Agreement]
+We will also require you to sign the [Traefik Contributor License Agreement]
 after you submit your first pull request to this project. The link to sign the
 agreement will be presented to you in the web interface of the pull request.
 
-[Issues]: https://github.com/containous/yaegi/issues
-[Pull Requests]: https://github.com/containous/yaegi/issues
-[Feature Request]: https://github.com/containous/yaegi/issues/new?template=feature_request.md
+[Issues]: https://github.com/traefik/yaegi/issues
+[Pull Requests]: https://github.com/traefik/yaegi/issues
+[Feature Request]: https://github.com/traefik/yaegi/issues/new?template=feature_request.md
 [Draft Pull Request]: https://github.blog/2019-02-14-introducing-draft-pull-requests/
-[Containous Contributor License Agreement]: https://cla-assistant.io/containous/yaegi
+[Traefik Labs Contributor License Agreement]: https://cla-assistant.io/traefik/yaegi

LICENSE

@@ -187,6 +187,7 @@
       identification within third-party archives.
 
    Copyright 2019 Containous SAS
+   Copyright 2020 Traefik Labs SAS
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.md

@@ -2,9 +2,9 @@
 <img width="400" src="doc/images/yaegi.png" alt="Yaegi" title="Yaegi" />
 </p>
 
-[![release](https://img.shields.io/github/tag-date/containous/yaegi.svg?label=alpha)](https://github.com/containous/yaegi/releases)
-[![Build Status](https://travis-ci.com/containous/yaegi.svg?branch=master)](https://travis-ci.com/containous/yaegi)
-[![GoDoc](https://godoc.org/github.com/containous/yaegi?status.svg)](https://godoc.org/github.com/containous/yaegi)
+[![release](https://img.shields.io/github/tag-date/traefik/yaegi.svg?label=alpha)](https://github.com/traefik/yaegi/releases)
+[![Build Status](https://travis-ci.com/traefik/yaegi.svg?branch=master)](https://travis-ci.com/traefik/yaegi)
+[![GoDoc](https://godoc.org/github.com/traefik/yaegi?status.svg)](https://godoc.org/github.com/traefik/yaegi)
 [![Discourse status](https://img.shields.io/discourse/https/community.containo.us/status?label=Community&style=social)](https://community.containo.us/c/yaegi)
 
 Yaegi is Another Elegant Go Interpreter.
@@ -25,13 +25,13 @@ It powers executable Go scripts and plugins, in embedded interpreters or interac
 ### Go package
 
 ```go
-import "github.com/containous/yaegi/interp"
+import "github.com/traefik/yaegi/interp"
 ```
 
 ### Command-line executable
 
 ```bash
-go get -u github.com/containous/yaegi/cmd/yaegi
+go get -u github.com/traefik/yaegi/cmd/yaegi
 ```
 
 Note that you can use [rlwrap](https://github.com/hanslub42/rlwrap) (install with your favorite package manager),
@@ -47,8 +47,8 @@ Create an interpreter with `New()`, run Go code with `Eval()`:
 package main
 
 import (
-	"github.com/containous/yaegi/interp"
-	"github.com/containous/yaegi/stdlib"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
 )
 
 func main() {
@@ -81,7 +81,7 @@ The following program is compiled ahead of time, except `bar()` which is interpr
 ```go
 package main
 
-import "github.com/containous/yaegi/interp"
+import "github.com/traefik/yaegi/interp"
 
 const src = `package foo
 func Bar(s string) string { return s + "-Foo" }`
@@ -155,11 +155,11 @@ Documentation about Yaegi commands and libraries can be found at usual [godoc.or
 
 Beside the known [bugs] which are supposed to be fixed in the short term, there are some limitations not planned to be addressed soon:
 
-- assembly files (`.s`) are not supported
-- calling C code is not supported (no virtual "C" package)
-- interfaces to be used from the pre-compiled code can not be added dynamically, as it is required to pre-compile interface wrappers
-- representation of types by `reflect` and printing values using %T may give different results between compiled mode and interpreted mode
-- interpreting computation intensive code is likely to remain significantly slower than in compiled mode
+- Assembly files (`.s`) are not supported.
+- Calling C code is not supported (no virtual "C" package).
+- Interfaces to be used from the pre-compiled code can not be added dynamically, as it is required to pre-compile interface wrappers.
+- Representation of types by `reflect` and printing values using %T may give different results between compiled mode and interpreted mode.
+- Interpreting computation intensive code is likely to remain significantly slower than in compiled mode.
 
 ## Contributing
 
@@ -170,7 +170,7 @@ Beside the known [bugs] which are supposed to be fixed in the short term, there
 [Apache 2.0][License].
 
 [specs]: https://golang.org/ref/spec
-[docs]: https://godoc.org/github.com/containous/yaegi
-[license]: https://github.com/containous/yaegi/blob/master/LICENSE
-[github]: https://github.com/containous/yaegi
-[bugs]: https://github.com/containous/yaegi/issues?q=is%3Aissue+is%3Aopen+label%3Abug
+[docs]: https://godoc.org/github.com/traefik/yaegi
+[license]: https://github.com/traefik/yaegi/blob/master/LICENSE
+[github]: https://github.com/traefik/yaegi
+[bugs]: https://github.com/traefik/yaegi/issues?q=is%3Aissue+is%3Aopen+label%3Abug

_test/a42.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"encoding/binary"
+	"fmt"
+)
+
+func main() {
+	var b [8]byte
+	binary.LittleEndian.PutUint64(b[:], uint64(1))
+
+	fmt.Println(b)
+}
+
+// Output:
+// [1 0 0 0 0 0 0 0]

_test/b1/foo/foo.go

@@ -1,6 +1,6 @@
 package foo
 
-import bar "github.com/containous/yaegi/_test/b2/foo"
+import bar "github.com/traefik/yaegi/_test/b2/foo"
 
 var Desc = "in b1/foo"
 

_test/c1/c1.go

@@ -1,5 +1,5 @@
 package c1
 
-import "github.com/containous/yaegi/_test/c2"
+import "github.com/traefik/yaegi/_test/c2"
 
 var C1 = c2.C2 + "x"

_test/c2/c2.go

@@ -1,5 +1,5 @@
 package c2
 
-import "github.com/containous/yaegi/_test/c1"
+import "github.com/traefik/yaegi/_test/c1"
 
 var C2 = c1.C1 + "Y"

_test/cli4.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+)
+
+type mw1 struct {
+	next http.Handler
+}
+
+func (m *mw1) ServeHTTP(rw http.ResponseWriter, rq *http.Request) {
+	m.next.ServeHTTP(rw, rq)
+}
+
+type mw0 struct{}
+
+func (m *mw0) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprint(w, "Welcome to my website!")
+}
+
+func main() {
+	m0 := &mw0{}
+	m1 := &mw1{m0}
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", m1.ServeHTTP)
+
+	server := httptest.NewServer(mux)
+	defer server.Close()
+
+	client(server.URL)
+}
+
+func client(uri string) {
+	resp, err := http.Get(uri)
+	if err != nil {
+		log.Fatal(err)
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(string(body))
+}
+
+// Output:
+// Welcome to my website!

_test/cli5.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+)
+
+type mw1 struct {
+	next http.Handler
+}
+
+func (m *mw1) ServeHTTP(rw http.ResponseWriter, rq *http.Request) {
+	m.next.ServeHTTP(rw, rq)
+}
+
+type mw0 struct{}
+
+func (m *mw0) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprint(w, "Welcome to my website!")
+}
+
+func main() {
+	m0 := &mw0{}
+	m1 := &mw1{next: m0}
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", m1.ServeHTTP)
+
+	server := httptest.NewServer(mux)
+	defer server.Close()
+
+	client(server.URL)
+}
+
+func client(uri string) {
+	resp, err := http.Get(uri)
+	if err != nil {
+		log.Fatal(err)
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(string(body))
+}
+
+// Output:
+// Welcome to my website!

_test/cli6.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+)
+
+type T struct {
+	http.ResponseWriter
+}
+
+type mw1 struct {
+	next http.Handler
+}
+
+func (m *mw1) ServeHTTP(rw http.ResponseWriter, rq *http.Request) {
+	t := &T{
+		ResponseWriter: rw,
+	}
+	x := t.Header()
+	fmt.Fprint(rw, "Welcome to my website!", x)
+}
+
+func main() {
+	m1 := &mw1{}
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", m1.ServeHTTP)
+
+	server := httptest.NewServer(mux)
+	defer server.Close()
+
+	client(server.URL)
+}
+
+func client(uri string) {
+	resp, err := http.Get(uri)
+	if err != nil {
+		log.Fatal(err)
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(string(body))
+}
+
+// Output:
+// Welcome to my website!map[]

_test/composite6.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 
-	"github.com/containous/yaegi/_test/ct1"
+	"github.com/traefik/yaegi/_test/ct1"
 )
 
 type T struct {

_test/eval0.go

@@ -2,13 +2,14 @@ package main
 
 import (
 	"log"
+	"os"
 
-	"github.com/containous/yaegi/interp"
+	"github.com/traefik/yaegi/interp"
 )
 
 func main() {
 	log.SetFlags(log.Lshortfile)
-	i := interp.New(interp.Options{})
+	i := interp.New(interp.Options{Stdout: os.Stdout})
 	if _, err := i.Eval(`func f() (int, int) { return 1, 2 }`); err != nil {
 		log.Fatal(err)
 	}

_test/foo/bar.go

@@ -1,6 +1,6 @@
 package foo
 
-import "github.com/containous/yaegi/_test/foo/boo"
+import "github.com/traefik/yaegi/_test/foo/boo"
 
 var Bar = "BARR"
 var Boo = boo.Boo

_test/foo/bir.go

@@ -1,5 +1,5 @@
 package foo
 
-import "github.com/containous/yaegi/_test/foo/boo"
+import "github.com/traefik/yaegi/_test/foo/boo"
 
 var Bir = boo.Boo + "22"

_test/import3.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/foo"
+import "github.com/traefik/yaegi/_test/foo"
 
 func main() { println(foo.Bar, foo.Boo) }
 

_test/import4.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/p1"
+import "github.com/traefik/yaegi/_test/p1"
 
 func main() { println("num:", p1.Uint32()) }
 

_test/import5.go

@@ -1,6 +1,6 @@
 package main
 
-import boo "github.com/containous/yaegi/_test/foo"
+import boo "github.com/traefik/yaegi/_test/foo"
 
 func main() { println(boo.Bar, boo.Boo, boo.Bir) }
 

_test/import6.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/c1"
+import "github.com/traefik/yaegi/_test/c1"
 
 func main() {
 	println(c1.C1)
@@ -8,4 +8,4 @@ func main() {
 
 // Error:
 // import cycle not allowed
-//	imports github.com/containous/yaegi/_test/c1
+//	imports github.com/traefik/yaegi/_test/c1

_test/import7.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/foo-bar"
+import bar "github.com/traefik/yaegi/_test/foo-bar"
 
 func main() {
 	println(bar.Name)

_test/import8.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/b1/foo"
+import "github.com/traefik/yaegi/_test/b1/foo"
 
 func main() {
 	println(foo.Desc)

_test/import9.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/baz-bat"
+import "github.com/traefik/yaegi/_test/baz-bat"
 
 func main() {
 	println(baz.Name)

_test/inception.go

@@ -3,14 +3,14 @@ package main
 import (
 	"log"
 
-	"github.com/containous/yaegi/interp"
+	"github.com/traefik/yaegi/interp"
 )
 
 func main() {
 	log.SetFlags(log.Lshortfile)
 	i := interp.New(interp.Options{})
 	i.Use(interp.Symbols)
-	if _, err := i.Eval(`import "github.com/containous/yaegi/interp"`); err != nil {
+	if _, err := i.Eval(`import "github.com/traefik/yaegi/interp"`); err != nil {
 		log.Fatal(err)
 	}
 	if _, err := i.Eval(`i := interp.New(interp.Options{})`); err != nil {
@@ -20,6 +20,3 @@ func main() {
 		log.Fatal(err)
 	}
 }
-
-// Output:
-// 42

_test/interp.gi

@@ -1,7 +1,7 @@
 package main
 
 import (
-	"github.com/containous/yaegi/interp"
+	"github.com/traefik/yaegi/interp"
 )
 
 func main() {

_test/interp2.gi

@@ -1,13 +1,13 @@
 package main
 
 import (
-	"github.com/containous/yaegi/interp"
+	"github.com/traefik/yaegi/interp"
 )
 
 func main() {
 	i := interp.New(interp.Opt{})
 	i.Use(interp.ExportValue, interp.ExportType)
-	i.Eval(`import "github.com/containous/yaegi/interp"`)
+	i.Eval(`import "github.com/traefik/yaegi/interp"`)
 	i.Eval(`i := interp.New(interp.Opt{})`)
 	i.Eval(`i.Eval("println(42)")`)
 }

_test/ipp_as_key.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"guthib.com/toto" // pkg name is actually titi
+	"guthib.com/tata" // pkg name is actually tutu
+)
+
+func main() {
+	println("Hello", titi.Quux())
+	println("Hello", tutu.Quux())
+}
+
+// GOPATH:testdata/redeclaration-global7
+// Output:
+// Hello bar
+// Hello baz

_test/m1/main.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"fmt"
+	"testing"
+)
+
+func main() {
+	fmt.Println("vim-go")
+}
+
+func TestWeird(t *testing.T) {
+	fmt.Println("in TestWeird")
+}

_test/m1/main_test.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"testing"
+)
+
+func TestMain(t *testing.T) {
+	fmt.Println("in test")
+}
+
+func BenchmarkMain(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		rand.Int()
+	}
+}

_test/method35.go

@@ -0,0 +1,14 @@
+package main
+
+import "strconv"
+
+func main() {
+	var err error
+	_, err = strconv.Atoi("erwer")
+	if _, ok := err.(*strconv.NumError); ok {
+		println("here")
+	}
+}
+
+// Output:
+// here

_test/pkgname0.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"guthib.com/bar" // pkg name is actually quux
+	baz "guthib.com/baz" // pkg name is also quux, force it to baz.
+)
+
+func main() {
+	println("Hello", quux.Quux())
+	println("Hello", baz.Quux())
+}
+
+// GOPATH:testdata/redeclaration-global7
+// Output:
+// Hello bar
+// Hello baz

_test/pkgname1.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"guthib.com/bar" // pkg name is actually quux
+)
+
+func main() {
+	println("Hello", bar.Quux()) // bar should not be a known symbol.
+}
+
+// GOPATH:testdata/redeclaration-global7
+// Error:
+// ../_test/pkgname1.go:8:19: undefined: bar

_test/pkgname2.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"guthib.com/toto" // pkg name is actually titi
+)
+
+func main() {
+	println("Hello", titi.Quux())
+}
+
+// GOPATH:testdata/redeclaration-global7
+// Output:
+// Hello bar

_test/redeclaration-global5.go

@@ -12,4 +12,5 @@ func main() {
 }
 
 // Error:
-// ../_test/redeclaration-global5.go:5:1: time redeclared in this block
+// ../_test/redeclaration-global5.go:5:6: time redeclared in this block
+//	previous declaration at ../_test/redeclaration-global5.go:3:5

_test/redeclaration-global7.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"guthib.com/bar" // pkg name is actually quux
+	"guthib.com/baz" // pkg name is also quux
+)
+
+func main() {
+	println("Hello", quux.Quux())
+}
+
+// GOPATH:testdata/redeclaration-global7
+// Error:
+// ../_test/redeclaration-global7.go:5:2: quux/redeclaration-global7.go redeclared as imported package name

_test/struct55.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"log"
+	"os"
+)
+
+type Logger struct {
+	m []*log.Logger
+}
+
+func (l *Logger) Infof(format string, args ...interface{}) {
+	l.m[0].Printf(format, args...)
+}
+
+func main() {
+	l := &Logger{m: []*log.Logger{log.New(os.Stdout, "", log.Lmsgprefix)}}
+	l.Infof("test %s", "test")
+}
+
+// Output:
+// test test

_test/struct56.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type A struct {
+	IA InnerA
+}
+
+type InnerA struct {
+	Timestamp int64
+}
+
+func main() {
+	a := &A{}
+	b, _ := json.Marshal(a)
+	fmt.Println(string(b))
+}
+
+// Output:
+// {"IA":{"Timestamp":0}}

_test/struct57.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type A struct {
+	InnerA
+}
+
+type InnerA struct {
+	Timestamp int64
+}
+
+func main() {
+	a := &A{}
+	b, _ := json.Marshal(a)
+	fmt.Println(string(b))
+}
+
+// Output:
+// {"Timestamp":0}

_test/tag0.go

@@ -3,7 +3,7 @@
 
 package main
 
-import _ "github.com/containous/yaegi/_test/ct"
+import _ "github.com/traefik/yaegi/_test/ct"
 
 func main() {
 	println("bye")

_test/testdata/redeclaration-global7/src/guthib.com/bar/quux.go

@@ -0,0 +1,5 @@
+package quux
+
+func Quux() string {
+	return "bar"
+}

_test/testdata/redeclaration-global7/src/guthib.com/baz/quux.go

@@ -0,0 +1,5 @@
+package quux
+
+func Quux() string {
+	return "baz"
+}

_test/testdata/redeclaration-global7/src/guthib.com/tata/tutu.go

@@ -0,0 +1,7 @@
+package tutu
+
+import "guthib.com/baz"
+
+func Quux() string {
+	return quux.Quux()
+}

_test/testdata/redeclaration-global7/src/guthib.com/toto/titi.go

@@ -0,0 +1,7 @@
+package titi
+
+import "guthib.com/bar"
+
+func Quux() string {
+	return quux.Quux()
+}

_test/var14.go

@@ -1,6 +1,6 @@
 package main
 
-import "github.com/containous/yaegi/_test/vars"
+import "github.com/traefik/yaegi/_test/vars"
 
 func main() {
 	println(vars.A)

cmd/goexports/goexports.go

@@ -11,7 +11,7 @@ Usage:
 
 Example:
 
-    goexports github.com/containous/yaegi/interp
+    goexports github.com/traefik/yaegi/interp
 
 The same goexport program is used for all target operating systems and architectures.
 The GOOS and GOARCH environment variables set the desired target.
@@ -30,7 +30,7 @@ import (
 	"runtime"
 	"strings"
 
-	"github.com/containous/yaegi/extract"
+	"github.com/traefik/yaegi/extract"
 )
 
 // genLicense generates the correct LICENSE header text from the provided
@@ -108,9 +108,9 @@ func main() {
 
 		var oFile string
 		if pkgIdent == "syscall" {
-			oFile = strings.Replace(importPath, "/", "_", -1) + "_" + goos + "_" + goarch + ".go"
+			oFile = strings.ReplaceAll(importPath, "/", "_") + "_" + goos + "_" + goarch + ".go"
 		} else {
-			oFile = strings.Replace(importPath, "/", "_", -1) + ".go"
+			oFile = strings.ReplaceAll(importPath, "/", "_") + ".go"
 		}
 
 		prefix := runtime.Version()

cmd/yaegi/extract.go

@@ -10,7 +10,7 @@ import (
 	"path"
 	"strings"
 
-	"github.com/containous/yaegi/extract"
+	"github.com/traefik/yaegi/extract"
 )
 
 func extractCmd(arg []string) error {
@@ -58,7 +58,7 @@ func extractCmd(arg []string) error {
 			continue
 		}
 
-		oFile := strings.Replace(importPath, "/", "_", -1) + ".go"
+		oFile := strings.ReplaceAll(importPath, "/", "_") + ".go"
 		f, err := os.Create(oFile)
 		if err != nil {
 			return err

cmd/yaegi/help.go

@@ -36,7 +36,7 @@ func help(arg []string) error {
 	case Run:
 		return run([]string{"-h"})
 	case Test:
-		return fmt.Errorf("help: test not implemented")
+		return test([]string{"-h"})
 	default:
 		return fmt.Errorf("help: invalid yaegi command: %v", cmd)
 	}

cmd/yaegi/run.go

@@ -8,11 +8,11 @@ import (
 	"os"
 	"strings"
 
-	"github.com/containous/yaegi/interp"
-	"github.com/containous/yaegi/stdlib"
-	"github.com/containous/yaegi/stdlib/syscall"
-	"github.com/containous/yaegi/stdlib/unrestricted"
-	"github.com/containous/yaegi/stdlib/unsafe"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
+	"github.com/traefik/yaegi/stdlib/syscall"
+	"github.com/traefik/yaegi/stdlib/unrestricted"
+	"github.com/traefik/yaegi/stdlib/unsafe"
 )
 
 func run(arg []string) error {
@@ -56,14 +56,16 @@ func run(arg []string) error {
 	}
 
 	if cmd != "" {
-		i.REPL(strings.NewReader(cmd), os.Stderr)
+		_, err = i.Eval(cmd)
+		showError(err)
 	}
 
 	if len(args) == 0 {
 		if interactive || cmd == "" {
-			i.REPL(os.Stdin, os.Stdout)
+			_, err = i.REPL()
+			showError(err)
 		}
-		return nil
+		return err
 	}
 
 	// Skip first os arg to set command line as expected by interpreted main
@@ -71,40 +73,27 @@ func run(arg []string) error {
 	os.Args = arg[1:]
 	flag.CommandLine = flag.NewFlagSet(path, flag.ExitOnError)
 
-	if isPackageName(path) {
-		err = runPackage(i, path)
+	if isFile(path) {
+		err = runFile(i, path)
 	} else {
-		if isDir(path) {
-			err = runDir(i, path)
-		} else {
-			err = runFile(i, path)
-		}
+		_, err = i.EvalPath(path)
 	}
+	showError(err)
+
 	if err != nil {
 		return err
 	}
 
 	if interactive {
-		i.REPL(os.Stdin, os.Stdout)
+		_, err = i.REPL()
+		showError(err)
 	}
-	return nil
+	return err
 }
 
-func isPackageName(path string) bool {
-	return !strings.HasPrefix(path, "/") && !strings.HasPrefix(path, "./") && !strings.HasPrefix(path, "../")
-}
-
-func isDir(path string) bool {
-	fi, err := os.Lstat(path)
-	return err == nil && fi.IsDir()
-}
-
-func runPackage(i *interp.Interpreter, path string) error {
-	return fmt.Errorf("runPackage not implemented")
-}
-
-func runDir(i *interp.Interpreter, path string) error {
-	return fmt.Errorf("runDir not implemented")
+func isFile(path string) bool {
+	fi, err := os.Stat(path)
+	return err == nil && fi.Mode().IsRegular()
 }
 
 func runFile(i *interp.Interpreter, path string) error {
@@ -116,17 +105,21 @@ func runFile(i *interp.Interpreter, path string) error {
 	if s := string(b); strings.HasPrefix(s, "#!") {
 		// Allow executable go scripts, Have the same behavior as in interactive mode.
 		s = strings.Replace(s, "#!", "//", 1)
-		i.REPL(strings.NewReader(s), os.Stdout)
-	} else {
-		// Files not starting with "#!" are supposed to be pure Go, directly Evaled.
-		i.Name = path
-		_, err := i.Eval(s)
-		if err != nil {
-			fmt.Println(err)
-			if p, ok := err.(interp.Panic); ok {
-				fmt.Println(string(p.Stack))
-			}
-		}
+		_, err = i.Eval(s)
+		return err
+	}
+
+	// Files not starting with "#!" are supposed to be pure Go, directly Evaled.
+	_, err = i.EvalPath(path)
+	return err
+}
+
+func showError(err error) {
+	if err == nil {
+		return
+	}
+	fmt.Fprintln(os.Stderr, err)
+	if p, ok := err.(interp.Panic); ok {
+		fmt.Fprintln(os.Stderr, string(p.Stack))
 	}
-	return nil
 }

cmd/yaegi/test.go

@@ -0,0 +1,131 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"go/build"
+	"os"
+	"regexp"
+	"strings"
+	"testing"
+
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
+	"github.com/traefik/yaegi/stdlib/syscall"
+	"github.com/traefik/yaegi/stdlib/unrestricted"
+	"github.com/traefik/yaegi/stdlib/unsafe"
+)
+
+func test(arg []string) (err error) {
+	var (
+		bench           string
+		benchmem        bool
+		benchtime       string
+		count           string
+		cpu             string
+		failfast        bool
+		run             string
+		short           bool
+		tags            string
+		useUnrestricted bool
+		useUnsafe       bool
+		useSyscall      bool
+		timeout         string
+		verbose         bool
+	)
+
+	tflag := flag.NewFlagSet("test", flag.ContinueOnError)
+	tflag.StringVar(&bench, "bench", "", "Run only those benchmarks matching a regular expression.")
+	tflag.BoolVar(&benchmem, "benchmem", false, "Print memory allocation statistics for benchmarks.")
+	tflag.StringVar(&benchtime, "benchtime", "", "Run enough iterations of each benchmark to take t.")
+	tflag.StringVar(&count, "count", "", "Run each test and benchmark n times (default 1).")
+	tflag.StringVar(&cpu, "cpu", "", "Specify a list of GOMAXPROCS values for which the tests or benchmarks should be executed.")
+	tflag.BoolVar(&failfast, "failfast", false, "Do not start new tests after the first test failure.")
+	tflag.StringVar(&run, "run", "", "Run only those tests matching a regular expression.")
+	tflag.BoolVar(&short, "short", false, "Tell long-running tests to shorten their run time.")
+	tflag.StringVar(&tags, "tags", "", "Set a list of build tags.")
+	tflag.StringVar(&timeout, "timeout", "", "If a test binary runs longer than duration d, panic.")
+	tflag.BoolVar(&useUnrestricted, "unrestricted", false, "Include unrestricted symbols.")
+	tflag.BoolVar(&useUnsafe, "unsafe", false, "Include usafe symbols.")
+	tflag.BoolVar(&useSyscall, "syscall", false, "Include syscall symbols.")
+	tflag.BoolVar(&verbose, "v", false, "Verbose output: log all tests as they are run.")
+	tflag.Usage = func() {
+		fmt.Println("Usage: yaegi test [options] [path]")
+		fmt.Println("Options:")
+		tflag.PrintDefaults()
+	}
+	if err = tflag.Parse(arg); err != nil {
+		return err
+	}
+	args := tflag.Args()
+	path := "."
+	if len(args) > 0 {
+		path = args[0]
+	}
+
+	// Overwrite os.Args with correct flags to setup testing.Init.
+	tf := []string{""}
+	if bench != "" {
+		tf = append(tf, "-test.bench", bench)
+	}
+	if benchmem {
+		tf = append(tf, "-test.benchmem")
+	}
+	if benchtime != "" {
+		tf = append(tf, "-test.benchtime", benchtime)
+	}
+	if count != "" {
+		tf = append(tf, "-test.count", count)
+	}
+	if cpu != "" {
+		tf = append(tf, "-test.cpu", cpu)
+	}
+	if failfast {
+		tf = append(tf, "-test.failfast")
+	}
+	if run != "" {
+		tf = append(tf, "-test.run", run)
+	}
+	if short {
+		tf = append(tf, "-test.short")
+	}
+	if timeout != "" {
+		tf = append(tf, "-test.timeout", timeout)
+	}
+	if verbose {
+		tf = append(tf, "-test.v")
+	}
+	testing.Init()
+	os.Args = tf
+	flag.Parse()
+
+	i := interp.New(interp.Options{GoPath: build.Default.GOPATH, BuildTags: strings.Split(tags, ",")})
+	i.Use(stdlib.Symbols)
+	i.Use(interp.Symbols)
+	if useSyscall {
+		i.Use(syscall.Symbols)
+	}
+	if useUnrestricted {
+		i.Use(unrestricted.Symbols)
+	}
+	if useUnsafe {
+		i.Use(unsafe.Symbols)
+	}
+	if err = i.EvalTest(path); err != nil {
+		return err
+	}
+
+	benchmarks := []testing.InternalBenchmark{}
+	tests := []testing.InternalTest{}
+	for name, sym := range i.Symbols(path) {
+		switch fun := sym.Interface().(type) {
+		case func(*testing.B):
+			benchmarks = append(benchmarks, testing.InternalBenchmark{name, fun})
+		case func(*testing.T):
+			tests = append(tests, testing.InternalTest{name, fun})
+		}
+	}
+
+	testing.Main(regexp.MatchString, tests, benchmarks, nil)
+	return nil
+}

cmd/yaegi/yaegi.go

@@ -118,7 +118,7 @@ func main() {
 	case Run:
 		err = run(os.Args[2:])
 	case Test:
-		err = fmt.Errorf("test not implemented")
+		err = test(os.Args[2:])
 	default:
 		// If no command is given, fallback to default "run" command.
 		// This allows scripts starting with "#!/usr/bin/env yaegi",

cmd/yaegi/yaegi_test.go

@@ -2,11 +2,13 @@ package main
 
 import (
 	"bytes"
+	"context"
 	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"strconv"
+	"strings"
 	"testing"
 	"time"
 )
@@ -108,8 +110,8 @@ func TestYaegiCmdCancel(t *testing.T) {
 			continue
 		}
 
-		if outBuf.String() != "context canceled\n" {
-			t.Errorf("unexpected output: %q", &outBuf)
+		if strings.TrimSuffix(errBuf.String(), "\n") != context.Canceled.Error() {
+			t.Errorf("unexpected error: %q", &errBuf)
 		}
 	}
 }

example/closure/closure_test.go

@@ -3,8 +3,8 @@ package clos1
 import (
 	"testing"
 
-	"github.com/containous/yaegi/interp"
-	"github.com/containous/yaegi/stdlib"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
 )
 
 func TestFunctionCall(t *testing.T) {

example/getfunc/getfunc_test.go

@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/containous/yaegi/interp"
-	"github.com/containous/yaegi/stdlib"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
 )
 
 func TestGetFunc(t *testing.T) {

example/pkg/_pkg/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg10/src/github.com/foo/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg11/src/foo/foo.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func main() {

example/pkg/_pkg2/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg2/src/github.com/foo/pkg/vendor/guthib.com/traefik/fromage/fromage.go

@@ -3,7 +3,7 @@ package fromage
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese"
+	"guthib.com/traefik/cheese"
 )
 
 func Hello() string {

example/pkg/_pkg3/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg3/src/github.com/foo/pkg/vendor/guthib.com/traefik/fromage/fromage.go

@@ -3,8 +3,8 @@ package fromage
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese"
-	"guthib.com/containous/fromage/couteau"
+	"guthib.com/traefik/cheese"
+	"guthib.com/traefik/fromage/couteau"
 )
 
 func Hello() string {

example/pkg/_pkg4/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg4/src/github.com/foo/pkg/vendor/guthib.com/containous/fromage/vendor/guthib.com/containous/cheese/cheese.go

@@ -1,11 +0,0 @@
-package cheese
-
-import (
-	"fmt"
-
-	"guthib.com/containous/cheese/vin"
-)
-
-func Hello() string {
-	return fmt.Sprintf("Cheese %s", 	vin.Hello())
-}

example/pkg/_pkg4/src/github.com/foo/pkg/vendor/guthib.com/traefik/fromage/fromage.go

@@ -3,8 +3,8 @@ package fromage
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese"
-	"guthib.com/containous/fromage/couteau"
+	"guthib.com/traefik/cheese"
+	"guthib.com/traefik/fromage/couteau"
 )
 
 func Hello() string {

example/pkg/_pkg4/src/github.com/foo/pkg/vendor/guthib.com/traefik/fromage/vendor/guthib.com/traefik/cheese/cheese.go

@@ -3,7 +3,7 @@ package cheese
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese/vin"
+	"guthib.com/traefik/cheese/vin"
 )
 
 func Hello() string {

example/pkg/_pkg5/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg5/src/github.com/foo/pkg/vendor/guthib.com/traefik/cheese/cheese.go

@@ -3,7 +3,7 @@ package cheese
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese/vin"
+	"guthib.com/traefik/cheese/vin"
 )
 
 func Hello() string {

example/pkg/_pkg5/src/github.com/foo/pkg/vendor/guthib.com/traefik/fromage/fromage.go

@@ -3,8 +3,8 @@ package fromage
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese"
-	"guthib.com/containous/fromage/couteau"
+	"guthib.com/traefik/cheese"
+	"guthib.com/traefik/fromage/couteau"
 )
 
 func Hello() string {

example/pkg/_pkg6/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Here() string {

example/pkg/_pkg6/src/github.com/foo/pkg/vendor/guthib.com/traefik/fromage/fromage.go

@@ -3,8 +3,8 @@ package fromage
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese"
-	"guthib.com/containous/fromage/couteau"
+	"guthib.com/traefik/cheese"
+	"guthib.com/traefik/fromage/couteau"
 )
 
 func Hello() string {

example/pkg/_pkg6/src/guthib.com/traefik/cheese/cheese.go

@@ -0,0 +1,11 @@
+package cheese
+
+import (
+	"fmt"
+
+	"guthib.com/traefik/cheese/vin"
+)
+
+func Hello() string {
+	return fmt.Sprintf("Cheese %s", vin.Hello())
+}

example/pkg/_pkg7/src/github.com/foo/pkg/pkg.go

@@ -3,7 +3,7 @@ package pkg
 import (
 	"fmt"
 
-	"guthib.com/containous/vin"
+	"guthib.com/traefik/vin"
 )
 
 func Here() string {

example/pkg/_pkg7/src/github.com/foo/pkg/vendor/guthib.com/traefik/vin/vendor/guthib.com/traefik/cheese/cheese.go

@@ -3,7 +3,7 @@ package cheese
 import (
 	"fmt"
 
-	"guthib.com/containous/fromage"
+	"guthib.com/traefik/fromage"
 )
 
 func Hello() string {

example/pkg/_pkg7/src/github.com/foo/pkg/vendor/guthib.com/traefik/vin/vin.go

@@ -3,7 +3,7 @@ package vin
 import (
 	"fmt"
 
-	"guthib.com/containous/cheese"
+	"guthib.com/traefik/cheese"
 )
 
 func Hello() string {

example/pkg/pkg_test.go

@@ -3,14 +3,12 @@ package pkg
 import (
 	"bytes"
 	"fmt"
-	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
 
-	"github.com/containous/yaegi/interp"
-	"github.com/containous/yaegi/stdlib"
+	"github.com/traefik/yaegi/interp"
+	"github.com/traefik/yaegi/stdlib"
 )
 
 func TestPackages(t *testing.T) {
@@ -105,46 +103,16 @@ func TestPackages(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			// Init go interpreter
-			i := interp.New(interp.Options{GoPath: goPath})
+			var stdout, stderr bytes.Buffer
+			i := interp.New(interp.Options{GoPath: goPath, Stdout: &stdout, Stderr: &stderr})
 			i.Use(stdlib.Symbols) // Use binary standard library
 
 			var msg string
 			if test.evalFile != "" {
-				// setting i.Name as this is how it's actually done in cmd/yaegi
-				i.Name = test.evalFile
-				data, err := ioutil.ReadFile(test.evalFile)
-				if err != nil {
-					t.Fatal(err)
-				}
-
-				// TODO(mpl): this is brittle if we do concurrent tests and stuff, do better later.
-				stdout := os.Stdout
-				defer func() { os.Stdout = stdout }()
-				pr, pw, err := os.Pipe()
-				if err != nil {
-					t.Fatal(err)
-				}
-				os.Stdout = pw
-
-				if _, err := i.Eval(string(data)); err != nil {
+				if _, err := i.EvalPath(test.evalFile); err != nil {
 					fatalStderrf(t, "%v", err)
 				}
-
-				var buf bytes.Buffer
-				errC := make(chan error)
-				go func() {
-					_, err := io.Copy(&buf, pr)
-					errC <- err
-				}()
-
-				if err := pw.Close(); err != nil {
-					fatalStderrf(t, "%v", err)
-				}
-				if err := <-errC; err != nil {
-					fatalStderrf(t, "%v", err)
-				}
-				msg = buf.String()
+				msg = stdout.String()
 			} else {
 				// Load pkg from sources
 				topImport := "github.com/foo/pkg"

extract/extract.go

@@ -24,7 +24,7 @@ import (
 	"text/template"
 )
 
-const model = `// Code generated by 'github.com/containous/yaegi/extract {{.PkgName}}'. DO NOT EDIT.
+const model = `// Code generated by 'github.com/traefik/yaegi/extract {{.PkgName}}'. DO NOT EDIT.
 
 {{.License}}
 
@@ -216,6 +216,19 @@ func genContent(dest, importPath, license string, p *types.Package, skip map[str
 		buildTags += ",!windows,!nacl,!plan9"
 	}
 
+	if importPath == "syscall" {
+		// As per https://golang.org/cmd/go/#hdr-Build_constraints,
+		// using GOOS=android also matches tags and files for GOOS=linux,
+		// so exclude it explicitly to avoid collisions (issue #843).
+		// Also using GOOS=illumos matches tags and files for GOOS=solaris.
+		switch os.Getenv("GOOS") {
+		case "android":
+			buildTags += ",!linux"
+		case "illumos":
+			buildTags += ",!solaris"
+		}
+	}
+
 	b := new(bytes.Buffer)
 	data := map[string]interface{}{
 		"Dest":      dest,
@@ -247,6 +260,9 @@ func fixConst(name string, val constant.Value, imports map[string]bool) string {
 		str string
 	)
 	switch val.Kind() {
+	case constant.String:
+		tok = "STRING"
+		str = val.ExactString()
 	case constant.Int:
 		tok = "INT"
 		str = val.ExactString()
@@ -269,7 +285,7 @@ func fixConst(name string, val constant.Value, imports map[string]bool) string {
 	imports["go/constant"] = true
 	imports["go/token"] = true
 
-	return fmt.Sprintf("constant.MakeFromLiteral(\"%s\", token.%s, 0)", str, tok)
+	return fmt.Sprintf("constant.MakeFromLiteral(%q, token.%s, 0)", str, tok)
 }
 
 // importPath checks whether pkgIdent is an existing directory relative to

extract/extract_test.go

@@ -8,7 +8,7 @@ import (
 	"testing"
 )
 
-var expectedOutput = `// Code generated by 'github.com/containous/yaegi/extract guthib.com/baz'. DO NOT EDIT.
+var expectedOutput = `// Code generated by 'github.com/traefik/yaegi/extract guthib.com/baz'. DO NOT EDIT.
 
 // +build BUILD_TAGS
 

generate.go

@@ -1,7 +1,7 @@
 package yaegi
 
-//go:generate go generate github.com/containous/yaegi/interp
-//go:generate go generate github.com/containous/yaegi/cmd/goexports
-//go:generate go generate github.com/containous/yaegi/stdlib
-//go:generate go generate github.com/containous/yaegi/stdlib/syscall
-//go:generate go generate github.com/containous/yaegi/stdlib/unsafe
+//go:generate go generate github.com/traefik/yaegi/interp
+//go:generate go generate github.com/traefik/yaegi/cmd/goexports
+//go:generate go generate github.com/traefik/yaegi/stdlib
+//go:generate go generate github.com/traefik/yaegi/stdlib/syscall
+//go:generate go generate github.com/traefik/yaegi/stdlib/unsafe

go.mod

@@ -1,3 +1,3 @@
-module github.com/containous/yaegi
+module github.com/traefik/yaegi
 
 go 1.12

internal/genop/genop.go

@@ -32,7 +32,7 @@ func {{$name}}(n *node) {
 	case reflect.String:
 		switch {
 		case c0.rval.IsValid():
-			s0 := c0.rval.String()
+			s0 := vString(c0.rval)
 			v1 := genValue(c1)
 			n.exec = func(f *frame) bltn {
 				dest(f).SetString(s0 {{$op.Name}} v1(f).String())
@@ -40,7 +40,7 @@ func {{$name}}(n *node) {
 			}
 		case c1.rval.IsValid():
 			v0 := genValue(c0)
-			s1 := c1.rval.String()
+			s1 :=  vString(c1.rval)
 			n.exec = func(f *frame) bltn {
 				dest(f).SetString(v0(f).String() {{$op.Name}} s1)
 				return next
@@ -202,7 +202,7 @@ func {{$name}}Const(n *node) {
 		{{- end}}
 	{{- if $op.Str}}
 	case isString(t):
-		n.rval.SetString(v0.String() {{$op.Name}} v1.String())
+		n.rval.SetString(vString(v0) {{$op.Name}} vString(v1))
 	{{- end}}
 	{{- if $op.Float}}
 	case isComplex(t):
@@ -233,7 +233,7 @@ func {{$name}}Assign(n *node) {
 		{{- if $op.Str}}
 		case reflect.String:
 			v0 := genValueString(c0)
-			v1 := c1.rval.String()
+			v1 := vString(c1.rval)
 			n.exec = func(f *frame) bltn {
 				v, s := v0(f)
 				v.SetString(s {{$op.Name}} v1)
@@ -496,7 +496,7 @@ func {{$name}}(n *node) {
 	case isString(t0) || isString(t1):
 		switch {
 		case c0.rval.IsValid():
-			s0 := c0.rval.String()
+			s0 :=  vString(c0.rval)
 			v1 := genValueString(n.child[1])
 			if n.fnext != nil {
 				fnext := getExec(n.fnext)
@@ -517,7 +517,7 @@ func {{$name}}(n *node) {
 				}
 			}
 		case c1.rval.IsValid():
-			s1 := c1.rval.String()
+			s1 :=  vString(c1.rval)
 			v0 := genValueString(n.child[0])
 			if n.fnext != nil {
 				fnext := getExec(n.fnext)

interp/ast.go

@@ -1,6 +1,7 @@
 package interp
 
 import (
+	"errors"
 	"fmt"
 	"go/ast"
 	"go/constant"
@@ -9,6 +10,7 @@ import (
 	"go/token"
 	"reflect"
 	"strconv"
+	"strings"
 	"sync/atomic"
 )
 
@@ -339,30 +341,48 @@ func (interp *Interpreter) firstToken(src string) token.Token {
 	return tok
 }
 
+func ignoreError(err error, src string) bool {
+	se, ok := err.(scanner.ErrorList)
+	if !ok {
+		return false
+	}
+	if len(se) == 0 {
+		return false
+	}
+	return ignoreScannerError(se[0], src)
+}
+
+func wrapInMain(src string) string {
+	return fmt.Sprintf("package main; func main() {%s}", src)
+}
+
 // Note: no type analysis is performed at this stage, it is done in pre-order
-// processing of CFG, in order to accommodate forward type declarations
+// processing of CFG, in order to accommodate forward type declarations.
 
 // ast parses src string containing Go code and generates the corresponding AST.
 // The package name and the AST root node are returned.
-func (interp *Interpreter) ast(src, name string) (string, *node, error) {
-	inRepl := name == ""
+// The given name is used to set the filename of the relevant source file in the
+// interpreter's FileSet.
+func (interp *Interpreter) ast(src, name string, inc bool) (string, *node, error) {
 	var inFunc bool
-	var mode parser.Mode
+	mode := parser.DeclarationErrors
 
 	// Allow incremental parsing of declarations or statements, by inserting
 	// them in a pseudo file package or function. Those statements or
-	// declarations will be always evaluated in the global scope
-	if inRepl {
-		switch interp.firstToken(src) {
+	// declarations will be always evaluated in the global scope.
+	var tok token.Token
+	if inc {
+		tok = interp.firstToken(src)
+		switch tok {
 		case token.PACKAGE:
-			// nothing to do
+			// nothing to do.
 		case token.CONST, token.FUNC, token.IMPORT, token.TYPE, token.VAR:
 			src = "package main;" + src
 		default:
 			inFunc = true
-			src = "package main; func main() {" + src + "}"
+			src = wrapInMain(src)
 		}
-		// Parse comments in REPL mode, to allow tag setting
+		// Parse comments in REPL mode, to allow tag setting.
 		mode |= parser.ParseComments
 	}
 
@@ -372,7 +392,22 @@ func (interp *Interpreter) ast(src, name string) (string, *node, error) {
 
 	f, err := parser.ParseFile(interp.fset, name, src, mode)
 	if err != nil {
-		return "", nil, err
+		// only retry if we're on an expression/statement about a func
+		if !inc || tok != token.FUNC {
+			return "", nil, err
+		}
+		// do not bother retrying if we know it's an error we're going to ignore later on.
+		if ignoreError(err, src) {
+			return "", nil, err
+		}
+		// do not lose initial error, in case retrying fails.
+		initialError := err
+		// retry with default source code "wrapping", in the main function scope.
+		src := wrapInMain(strings.TrimPrefix(src, "package main;"))
+		f, err = parser.ParseFile(interp.fset, name, src, mode)
+		if err != nil {
+			return "", nil, initialError
+		}
 	}
 
 	setYaegiTags(&interp.context, f.Comments)
@@ -487,20 +522,12 @@ func (interp *Interpreter) ast(src, name string) (string, *node, error) {
 			n.ident = a.Value
 			switch a.Kind {
 			case token.CHAR:
+				// Char cannot be converted to a const here as we cannot tell the type.
 				v, _, _, _ := strconv.UnquoteChar(a.Value[1:len(a.Value)-1], '\'')
 				n.rval = reflect.ValueOf(v)
-			case token.FLOAT:
+			case token.FLOAT, token.IMAG, token.INT, token.STRING:
 				v := constant.MakeFromLiteral(a.Value, a.Kind, 0)
 				n.rval = reflect.ValueOf(v)
-			case token.IMAG:
-				v := constant.MakeFromLiteral(a.Value, a.Kind, 0)
-				n.rval = reflect.ValueOf(v)
-			case token.INT:
-				v := constant.MakeFromLiteral(a.Value, a.Kind, 0)
-				n.rval = reflect.ValueOf(v)
-			case token.STRING:
-				v, _ := strconv.Unquote(a.Value)
-				n.rval = reflect.ValueOf(v)
 			}
 			st.push(n, nod)
 
@@ -859,10 +886,13 @@ func (interp *Interpreter) ast(src, name string) (string, *node, error) {
 	})
 	if inFunc {
 		// Incremental parsing: statements were inserted in a pseudo function.
-		// Set root to function body so its statements are evaluated in global scope
+		// Set root to function body so its statements are evaluated in global scope.
 		root = root.child[1].child[3]
 		root.anc = nil
 	}
+	if pkgName == "" {
+		return "", root, errors.New("no package name found")
+	}
 	return pkgName, root, err
 }
 

interp/build.go

@@ -5,6 +5,7 @@ import (
 	"go/build"
 	"go/parser"
 	"path"
+	"path/filepath"
 	"strconv"
 	"strings"
 )
@@ -129,12 +130,15 @@ func goMinorVersion(ctx *build.Context) int {
 }
 
 // skipFile returns true if file should be skipped.
-func skipFile(ctx *build.Context, p string) bool {
+func skipFile(ctx *build.Context, p string, skipTest bool) bool {
 	if !strings.HasSuffix(p, ".go") {
 		return true
 	}
 	p = strings.TrimSuffix(path.Base(p), ".go")
-	if strings.HasSuffix(p, "_test") {
+	if pp := filepath.Base(p); strings.HasPrefix(pp, "_") || strings.HasPrefix(pp, ".") {
+		return true
+	}
+	if skipTest && strings.HasSuffix(p, "_test") {
 		return true
 	}
 	i := strings.Index(p, "_")
@@ -158,6 +162,7 @@ var knownOs = map[string]bool{
 	"darwin":    true,
 	"dragonfly": true,
 	"freebsd":   true,
+	"illumos":   true,
 	"js":        true,
 	"linux":     true,
 	"nacl":      true,

interp/build_test.go

@@ -74,7 +74,7 @@ func TestBuildFile(t *testing.T) {
 	for _, test := range tests {
 		test := test
 		t.Run(test.src, func(t *testing.T) {
-			if r := skipFile(&ctx, test.src); r != test.res {
+			if r := skipFile(&ctx, test.src, NoTest); r != test.res {
 				t.Errorf("got %v, want %v", r, test.res)
 			}
 		})

interp/cfg.go

@@ -8,6 +8,7 @@ import (
 	"path/filepath"
 	"reflect"
 	"regexp"
+	"strings"
 	"unicode"
 )
 
@@ -38,9 +39,9 @@ var constOp = map[action]func(*node){
 }
 
 var constBltn = map[string]func(*node){
-	"complex": complexConst,
-	"imag":    imagConst,
-	"real":    realConst,
+	bltnComplex: complexConst,
+	bltnImag:    imagConst,
+	bltnReal:    realConst,
 }
 
 var identifier = regexp.MustCompile(`([\pL_][\pL_\d]*)$`)
@@ -51,8 +52,8 @@ const nilIdent = "nil"
 // and pre-compute frame sizes and indexes for all un-named (temporary) and named
 // variables. A list of nodes of init functions is returned.
 // Following this pass, the CFG is ready to run.
-func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
-	sc := interp.initScopePkg(pkgID)
+func (interp *Interpreter) cfg(root *node, importPath string) ([]*node, error) {
+	sc := interp.initScopePkg(importPath)
 	check := typecheck{}
 	var initNodes []*node
 	var err error
@@ -333,6 +334,8 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 					return false
 				}
 				recvTypeNode.typ = typ
+				n.child[2].typ.recv = typ
+				n.typ.recv = typ
 				index := sc.add(typ)
 				if len(fr.child) > 1 {
 					sc.sym[fr.child[0].ident] = &symbol{index: index, kind: varSym, typ: typ}
@@ -365,19 +368,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 			sc.loop = n
 
 		case importSpec:
-			var name, ipath string
-			if len(n.child) == 2 {
-				ipath = n.child[1].rval.String()
-				name = n.child[0].ident
-			} else {
-				ipath = n.child[0].rval.String()
-				name = identifier.FindString(ipath)
-			}
-			if interp.binPkg[ipath] != nil && name != "." {
-				sc.sym[name] = &symbol{kind: pkgSym, typ: &itype{cat: binPkgT, path: ipath}}
-			} else {
-				sc.sym[name] = &symbol{kind: pkgSym, typ: &itype{cat: srcPkgT, path: ipath}}
-			}
+			// already all done in gta
 			return false
 
 		case typeSpec:
@@ -395,12 +386,6 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 				return false
 			}
 
-			if _, exists := sc.sym[typeName]; exists {
-				// TODO(mpl): find the exact location of the previous declaration
-				err = n.cfgErrorf("%s redeclared in this block", typeName)
-				return false
-			}
-
 			if n.child[1].kind == identExpr {
 				n.typ = &itype{cat: aliasT, val: typ, name: typeName}
 			} else {
@@ -415,7 +400,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 			// values which may be used in further declarations.
 			if !sc.global {
 				for _, c := range n.child {
-					if _, err = interp.cfg(c, pkgID); err != nil {
+					if _, err = interp.cfg(c, importPath); err != nil {
 						// No error processing here, to allow recovery in subtree nodes.
 						err = nil
 					}
@@ -477,6 +462,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 			wireChild(n)
 			for i := 0; i < n.nleft; i++ {
 				dest, src := n.child[i], n.child[sbase+i]
+				updateSym := false
 				var sym *symbol
 				var level int
 				if n.kind == defineStmt || (n.kind == assignStmt && dest.ident == "_") {
@@ -513,7 +499,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 					dest.val = src.val
 					dest.recv = src.recv
 					dest.findex = sym.index
-					sym.rval = src.rval
+					updateSym = true
 				} else {
 					sym, level, _ = sc.lookup(dest.ident)
 				}
@@ -523,6 +509,15 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 					break
 				}
 
+				if updateSym {
+					sym.typ = dest.typ
+					sym.rval = src.rval
+					// As we are updating the sym type, we need to update the sc.type
+					// when the sym has an index.
+					if sym.index >= 0 {
+						sc.types[sym.index] = sym.typ.frameType()
+					}
+				}
 				n.findex = dest.findex
 				n.level = dest.level
 
@@ -798,6 +793,11 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 			wireChild(n)
 			switch {
 			case interp.isBuiltinCall(n):
+				err = check.builtin(n.child[0].ident, n, n.child[1:], n.action == aCallSlice)
+				if err != nil {
+					break
+				}
+
 				n.gen = n.child[0].sym.builtin
 				n.child[0].typ = &itype{cat: builtinT}
 				if n.typ, err = nodeType(interp, sc, n); err != nil {
@@ -816,57 +816,53 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 				if op, ok := constBltn[n.child[0].ident]; ok && n.anc.action != aAssign {
 					op(n) // pre-compute non-assigned constant :
 				}
-
 			case n.child[0].isType(sc):
 				// Type conversion expression
-				if isInt(n.child[0].typ.TypeOf()) && n.child[1].kind == basicLit && isFloat(n.child[1].typ.TypeOf()) {
-					err = n.cfgErrorf("truncated to integer")
+				c0, c1 := n.child[0], n.child[1]
+				switch len(n.child) {
+				case 1:
+					err = n.cfgErrorf("missing argument in conversion to %s", c0.typ.id())
+				case 2:
+					err = check.conversion(c1, c0.typ)
+				default:
+					err = n.cfgErrorf("too many arguments in conversion to %s", c0.typ.id())
+				}
+				if err != nil {
 					break
 				}
+
 				n.action = aConvert
 				switch {
-				case isInterface(n.child[0].typ) && !n.child[1].isNil():
+				case isInterface(c0.typ) && !c1.isNil():
 					// Convert to interface: just check that all required methods are defined by concrete type.
-					c0, c1 := n.child[0], n.child[1]
 					if !c1.typ.implements(c0.typ) {
 						err = n.cfgErrorf("type %v does not implement interface %v", c1.typ.id(), c0.typ.id())
 					}
 					// Pass value as is
 					n.gen = nop
-					n.typ = n.child[1].typ
-					n.findex = n.child[1].findex
-					n.level = n.child[1].level
-					n.val = n.child[1].val
-					n.rval = n.child[1].rval
-				case n.child[1].rval.IsValid() && isConstType(n.child[0].typ):
+					n.typ = c1.typ
+					n.findex = c1.findex
+					n.level = c1.level
+					n.val = c1.val
+					n.rval = c1.rval
+				case c1.rval.IsValid() && isConstType(c0.typ):
 					n.gen = nop
 					n.findex = -1
-					n.typ = n.child[0].typ
-					n.rval = n.child[1].rval
-					convertConstantValue(n)
+					n.typ = c0.typ
+					n.rval = c1.rval
 				default:
 					n.gen = convert
-					n.typ = n.child[0].typ
+					n.typ = c0.typ
 					n.findex = sc.add(n.typ)
 				}
 			case isBinCall(n):
-				n.gen = callBin
-				typ := n.child[0].typ.rtype
-				numIn := len(n.child) - 1
-				tni := typ.NumIn()
-				if numIn == 1 && isCall(n.child[1]) {
-					numIn = n.child[1].typ.numOut()
-				}
-				if n.child[0].action == aGetMethod {
-					tni-- // The first argument is the method receiver.
-				}
-				if typ.IsVariadic() {
-					tni-- // The last argument could be empty.
-				}
-				if numIn < tni {
-					err = n.cfgErrorf("not enough arguments in call to %v", n.child[0].name())
+				err = check.arguments(n, n.child[1:], n.child[0], n.action == aCallSlice)
+				if err != nil {
 					break
 				}
+
+				n.gen = callBin
+				typ := n.child[0].typ.rtype
 				if typ.NumOut() > 0 {
 					if funcType := n.child[0].typ.val; funcType != nil {
 						// Use the original unwrapped function type, to allow future field and
@@ -889,6 +885,11 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 					}
 				}
 			default:
+				err = check.arguments(n, n.child[1:], n.child[0], n.action == aCallSlice)
+				if err != nil {
+					break
+				}
+
 				if n.child[0].action == aGetFunc {
 					// Allocate a frame entry to store the anonymous function definition.
 					sc.add(n.child[0].typ)
@@ -946,18 +947,6 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 		case compositeLitExpr:
 			wireChild(n)
 
-			underlying := func(t *itype) *itype {
-				for {
-					switch t.cat {
-					case ptrT, aliasT:
-						t = t.val
-						continue
-					default:
-						return t
-					}
-				}
-			}
-
 			child := n.child
 			if n.nleft > 0 {
 				child = child[1:]
@@ -965,9 +954,9 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 
 			switch n.typ.cat {
 			case arrayT:
-				err = check.arrayLitExpr(child, underlying(n.typ.val), n.typ.size)
+				err = check.arrayLitExpr(child, n.typ.val, n.typ.size)
 			case mapT:
-				err = check.mapLitExpr(child, n.typ.key, underlying(n.typ.val))
+				err = check.mapLitExpr(child, n.typ.key, n.typ.val)
 			case structT:
 				err = check.structLitExpr(child, n.typ)
 			case valueT:
@@ -987,7 +976,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 
 			n.findex = sc.add(n.typ)
 			// TODO: Check that composite literal expr matches corresponding type
-			n.gen = compositeGenerator(n)
+			n.gen = compositeGenerator(n, n.typ)
 
 		case fallthroughtStmt:
 			if n.anc.kind != caseBody {
@@ -1351,11 +1340,15 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 				// Search for field must then be performed on type T only (not *T)
 				switch method, ok := n.typ.rtype.MethodByName(n.child[1].ident); {
 				case ok:
+					hasRecvType := n.typ.rtype.Kind() != reflect.Interface
 					n.val = method.Index
 					n.gen = getIndexBinMethod
 					n.action = aGetMethod
 					n.recv = &receiver{node: n.child[0]}
 					n.typ = &itype{cat: valueT, rtype: method.Type, isBinMethod: true}
+					if hasRecvType {
+						n.typ.recv = n.typ
+					}
 				case n.typ.rtype.Kind() == reflect.Ptr:
 					if field, ok := n.typ.rtype.Elem().FieldByName(n.child[1].ident); ok {
 						n.typ = &itype{cat: valueT, rtype: field.Type}
@@ -1375,7 +1368,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 						if m2, ok2 := pt.MethodByName(n.child[1].ident); ok2 {
 							n.val = m2.Index
 							n.gen = getIndexBinPtrMethod
-							n.typ = &itype{cat: valueT, rtype: m2.Type}
+							n.typ = &itype{cat: valueT, rtype: m2.Type, recv: &itype{cat: valueT, rtype: pt}}
 							n.recv = &receiver{node: n.child[0]}
 							n.action = aGetMethod
 						} else {
@@ -1389,14 +1382,14 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 				// Handle pointer on object defined in runtime
 				if method, ok := n.typ.val.rtype.MethodByName(n.child[1].ident); ok {
 					n.val = method.Index
-					n.typ = &itype{cat: valueT, rtype: method.Type}
+					n.typ = &itype{cat: valueT, rtype: method.Type, recv: n.typ}
 					n.recv = &receiver{node: n.child[0]}
 					n.gen = getIndexBinMethod
 					n.action = aGetMethod
 				} else if method, ok := reflect.PtrTo(n.typ.val.rtype).MethodByName(n.child[1].ident); ok {
 					n.val = method.Index
 					n.gen = getIndexBinMethod
-					n.typ = &itype{cat: valueT, rtype: method.Type}
+					n.typ = &itype{cat: valueT, rtype: method.Type, recv: &itype{cat: valueT, rtype: reflect.PtrTo(n.typ.val.rtype)}}
 					n.recv = &receiver{node: n.child[0]}
 					n.action = aGetMethod
 				} else if field, ok := n.typ.val.rtype.FieldByName(n.child[1].ident); ok {
@@ -1462,7 +1455,7 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 				}
 				n.recv = &receiver{node: n.child[0], index: lind}
 				n.val = append([]int{m.Index}, lind...)
-				n.typ = &itype{cat: valueT, rtype: m.Type}
+				n.typ = &itype{cat: valueT, rtype: m.Type, recv: n.child[0].typ}
 			} else if ti := n.typ.lookupField(n.child[1].ident); len(ti) > 0 {
 				// Handle struct field
 				n.val = ti
@@ -1565,6 +1558,12 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 			default:
 				// dereference expression
 				wireChild(n)
+
+				err = check.starExpr(n.child[0])
+				if err != nil {
+					break
+				}
+
 				if c0 := n.child[0]; c0.typ.cat == valueT {
 					n.typ = &itype{cat: valueT, rtype: c0.typ.rtype.Elem()}
 				} else {
@@ -1675,29 +1674,43 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 			n.child[0].tnext = sbn.start
 
 		case typeAssertExpr:
-			if len(n.child) > 1 {
-				wireChild(n)
-				c1 := n.child[1]
-				if c1.typ == nil {
-					if c1.typ, err = nodeType(interp, sc, c1); err != nil {
-						return
-					}
-				}
-				if n.anc.action != aAssignX {
-					if n.child[0].typ.cat == valueT && isFunc(c1.typ) {
-						// Avoid special wrapping of interfaces and func types.
-						n.typ = &itype{cat: valueT, rtype: c1.typ.TypeOf()}
-					} else {
-						n.typ = c1.typ
-					}
-					n.findex = sc.add(n.typ)
-				}
-			} else {
+			if len(n.child) == 1 {
+				// The "o.(type)" is handled by typeSwitch.
 				n.gen = nop
+				break
+			}
+
+			wireChild(n)
+			c0, c1 := n.child[0], n.child[1]
+			if c1.typ == nil {
+				if c1.typ, err = nodeType(interp, sc, c1); err != nil {
+					return
+				}
+			}
+
+			err = check.typeAssertionExpr(c0, c1.typ)
+			if err != nil {
+				break
+			}
+
+			if n.anc.action != aAssignX {
+				if c0.typ.cat == valueT && isFunc(c1.typ) {
+					// Avoid special wrapping of interfaces and func types.
+					n.typ = &itype{cat: valueT, rtype: c1.typ.TypeOf()}
+				} else {
+					n.typ = c1.typ
+				}
+				n.findex = sc.add(n.typ)
 			}
 
 		case sliceExpr:
 			wireChild(n)
+
+			err = check.sliceExpr(n)
+			if err != nil {
+				break
+			}
+
 			if n.typ, err = nodeType(interp, sc, n); err != nil {
 				return
 			}
@@ -1762,19 +1775,6 @@ func (interp *Interpreter) cfg(root *node, pkgID string) ([]*node, error) {
 					// Global object allocation is already performed in GTA.
 					index = sc.sym[c.ident].index
 				} else {
-					if sym, exists := sc.sym[c.ident]; exists {
-						if sym.typ.node != nil &&
-							sym.typ.node.anc != nil {
-							// for non-predeclared identifiers (struct, map, etc)
-							prevDecl := n.interp.fset.Position(sym.typ.node.anc.pos)
-							err = n.cfgErrorf("%s redeclared in this block\n\tprevious declaration at %v", c.ident, prevDecl)
-							return
-						}
-						// for predeclared identifiers (int, string, etc)
-						// TODO(mpl): find the exact location of the previous declaration in all cases.
-						err = n.cfgErrorf("%s redeclared in this block", c.ident)
-						return
-					}
 					index = sc.add(n.typ)
 					sc.sym[c.ident] = &symbol{index: index, kind: varSym, typ: n.typ}
 				}
@@ -1870,7 +1870,12 @@ func childPos(n *node) int {
 }
 
 func (n *node) cfgErrorf(format string, a ...interface{}) *cfgError {
-	a = append([]interface{}{n.interp.fset.Position(n.pos)}, a...)
+	pos := n.interp.fset.Position(n.pos)
+	posString := n.interp.fset.Position(n.pos).String()
+	if pos.Filename == DefaultSourceName {
+		posString = strings.TrimPrefix(posString, DefaultSourceName+":")
+	}
+	a = append([]interface{}{posString}, a...)
 	return &cfgError{n, fmt.Errorf("%s: "+format, a...)}
 }
 
@@ -2025,14 +2030,21 @@ func (n *node) isType(sc *scope) bool {
 		}
 	case selectorExpr:
 		pkg, name := n.child[0].ident, n.child[1].ident
-		if sym, _, ok := sc.lookup(pkg); ok && sym.kind == pkgSym {
-			path := sym.typ.path
-			if p, ok := n.interp.binPkg[path]; ok && isBinType(p[name]) {
-				return true // Imported binary type
-			}
-			if p, ok := n.interp.srcPkg[path]; ok && p[name] != nil && p[name].kind == typeSym {
-				return true // Imported source type
-			}
+		baseName := filepath.Base(n.interp.fset.Position(n.pos).Filename)
+		suffixedPkg := filepath.Join(pkg, baseName)
+		sym, _, ok := sc.lookup(suffixedPkg)
+		if !ok {
+			return false
+		}
+		if sym.kind != pkgSym {
+			return false
+		}
+		path := sym.typ.path
+		if p, ok := n.interp.binPkg[path]; ok && isBinType(p[name]) {
+			return true // Imported binary type
+		}
+		if p, ok := n.interp.srcPkg[path]; ok && p[name] != nil && p[name].kind == typeSym {
+			return true // Imported source type
 		}
 	case identExpr:
 		return sc.getType(n.ident) != nil
@@ -2342,11 +2354,10 @@ func gotoLabel(s *symbol) {
 	}
 }
 
-func compositeGenerator(n *node) (gen bltnGenerator) {
-	switch n.typ.cat {
+func compositeGenerator(n *node, typ *itype) (gen bltnGenerator) {
+	switch typ.cat {
 	case aliasT, ptrT:
-		n.typ = n.typ.val
-		gen = compositeGenerator(n)
+		gen = compositeGenerator(n, n.typ.val)
 	case arrayT:
 		gen = arrayLit
 	case mapT:

interp/doc.go

@@ -44,4 +44,5 @@ And include files containing
 */
 package interp
 
-// BUG(marc): Type checking is not implemented yet.
+// BUG(marc): Support for recursive types is incomplete.
+// BUG(marc): Support of types implementing multiple interfaces is incomplete.

interp/dot.go

@@ -19,7 +19,7 @@ func (n *node) astDot(out io.Writer, name string) {
 		var label string
 		switch n.kind {
 		case basicLit, identExpr:
-			label = strings.Replace(n.ident, "\"", "\\\"", -1)
+			label = strings.ReplaceAll(n.ident, "\"", "\\\"")
 		default:
 			if n.action != aNop {
 				label = n.action.String()

interp/example_eval_test.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"log"
 
-	"github.com/containous/yaegi/interp"
+	"github.com/traefik/yaegi/interp"
 )
 
 // Generic example.

interp/export_test.go

@@ -0,0 +1,17 @@
+package interp
+
+func (interp *Interpreter) Scopes() map[string]map[string]struct{} {
+	scopes := make(map[string]map[string]struct{})
+	for k, v := range interp.scopes {
+		syms := make(map[string]struct{})
+		for kk := range v.sym {
+			syms[kk] = struct{}{}
+		}
+		scopes[k] = syms
+	}
+	return scopes
+}
+
+func (interp *Interpreter) Packages() map[string]string {
+	return interp.pkgNames
+}