fix: correctly store boolean result for branching operations

.github/ISSUE_TEMPLATE/bug_report.md

@@ -17,11 +17,11 @@ func main() {
 Expected result:
 ```console
 $ go run ./sample.go
-// ouput
+// output
 ```
 
 Got:
 ```console
 $ yaegi ./sample.go
-// ouput
+// output
 ```

.golangci.toml

@@ -5,7 +5,7 @@
 [linters-settings]
 
   [linters-settings.govet]
-    check-shadowing = true
+    check-shadowing = false
 
   [linters-settings.gocyclo]
     min-complexity = 12.0
@@ -32,7 +32,11 @@
     "gocyclo",
     "gochecknoinits",
     "gochecknoglobals",
-    "typecheck", # v1.17.1 and Go1.13 => bug
+    "wsl",
+    "godox",
+    "funlen",
+    "gocognit",
+    "stylecheck",
   ]
 
 [issues]
@@ -41,10 +45,13 @@
   max-same-issues = 0
   exclude = []
 
-  [[issues.exclude-rules]]
-    path = "cmd/goexports/goexports.go"
-    text = "SA1019: importer.For is deprecated: use ForCompiler, which populates a FileSet with the positions of objects created by the importer."
-
   [[issues.exclude-rules]]
     path = "interp/.+_test\\.go"
     linters = ["goconst"]
+
+  [[issues.exclude-rules]]
+    path = "interp/interp.go"
+    text = "`in` can be `io.Reader`"
+  [[issues.exclude-rules]]
+    path = "interp/interp.go"
+    text = "`out` can be `io.Writer`"

.travis.yml

@@ -19,7 +19,6 @@ cache:
 matrix:
   fast_finish: true
   include:
-    - go: 1.11.x
     - go: 1.12.x
     - go: 1.13.x
       env: STABLE=true

CONTRIBUTING.md

@@ -13,7 +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]
+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
 [Draft Pull Request]: https://github.blog/2019-02-14-introducing-draft-pull-requests/
+[Containous Contributor License Agreement]: https://cla-assistant.io/containous/yaegi

Makefile

@@ -18,5 +18,6 @@ generate: gen_all_syscall
 
 tests:
 	GO111MODULE=off go test -v ./...
+	GO111MODULE=off go test -race ./interp
 
 .PHONY: check gen_all_syscall gen_tests

README.md

@@ -18,7 +18,7 @@ It powers executable Go scripts and plugins, in embedded interpreters or interac
 * Works everywhere Go works
 * All Go & runtime resources accessible from script (with control)
 * Security: `unsafe` and `syscall` packages neither used nor exported by default
-* Support Go 1.11 and Go 1.12 (the latest 2 major releases)
+* Support Go 1.12 and Go 1.13 (the latest 2 major releases)
 
 ## Install
 
@@ -129,6 +129,24 @@ $ yaegi cmd/yaegi/yaegi.go
 >
 ```
 
+Or for Go scripting in the shebang line:
+
+```console
+$ cat /tmp/test
+#!/usr/bin/env yaegi
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("test")
+}
+$ ls -la /tmp/test
+-rwxr-xr-x 1 dow184 dow184 93 Jan  6 13:38 /tmp/test
+$ /tmp/test
+test
+```
+
 ## Documentation
 
 Documentation about Yaegi commands and libraries can be found at usual [godoc.org][docs].

_test/a33.go

@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{1, 2, 3}
+	b := a
+	fmt.Println(b)
+}
+
+// Output:
+// [1 2 3]

_test/a34.go

@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{1, 2, 3}
+	var b [3]int = a
+	fmt.Println(b)
+}
+
+// Output:
+// [1 2 3]

_test/a35.go

@@ -0,0 +1,13 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{1, 2, 3}
+	b := a
+	b[0] = -1
+	fmt.Println(a)
+}
+
+// Output:
+// [1 2 3]

_test/a36.go

@@ -0,0 +1,13 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{1, 2, 3}
+	var b [3]int = a
+	b[0] = -1
+	fmt.Println(a)
+}
+
+// Output:
+// [1 2 3]

_test/a37.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{1, 2, 3}
+	fmt.Println(a)
+}
+
+// Output:
+// [1 2 3]

_test/a38.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]byte{}
+	fmt.Printf("%T\n", a)
+}
+
+// Output:
+// [0]uint8

_test/a39.go

@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]byte{}
+	b := a
+	fmt.Printf("%T %T\n", a, b)
+}
+
+// Output:
+// [0]uint8 [0]uint8

_test/a40.go

@@ -0,0 +1,23 @@
+package main
+
+import "fmt"
+
+type rule uint8
+
+const (
+	r0 rule = iota
+	r1
+	r2
+)
+
+var a = [...]int{
+	r0: 1,
+	r1: 12,
+}
+
+func main() {
+	fmt.Println(a)
+}
+
+// Output:
+// [1 12]

_test/a41.go

@@ -0,0 +1,10 @@
+package main
+
+var a = [...]bool{true, true}
+
+func main() {
+	println(a[0] && true)
+}
+
+// Output:
+// true

_test/alias1.go

@@ -0,0 +1,16 @@
+package main
+
+import "fmt"
+
+type MyT T
+
+type T struct {
+	Name string
+}
+
+func main() {
+	fmt.Println(MyT{})
+}
+
+// Output:
+// {}

_test/and3.go

@@ -0,0 +1,10 @@
+package main
+
+var a = true && true
+
+func main() {
+	println(a)
+}
+
+// Output:
+// true

_test/assign10.go

@@ -0,0 +1,10 @@
+package main
+
+func main() {
+	var a uint
+	a = 1 + 2
+	println(a)
+}
+
+// Output:
+// 3

_test/b1/foo/foo.go

@@ -0,0 +1,7 @@
+package foo
+
+import bar "github.com/containous/yaegi/_test/b2/foo"
+
+var Desc = "in b1/foo"
+
+var Desc2 = Desc + bar.Desc

_test/b2/foo/foo.go

@@ -0,0 +1,3 @@
+package foo
+
+var Desc = "in b2/foo"

_test/bin2.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"fmt"
+	"math"
+)
+
+func main() {
+	fmt.Println(math.Abs(-5))
+}
+
+// Output:
+// 5

_test/chan8.go

@@ -0,0 +1,12 @@
+package main
+
+func main() {
+	messages := make(chan bool)
+
+	go func() { messages <- true }()
+
+	println(<-messages && true)
+}
+
+// Output:
+// true

_test/closure8.go

@@ -0,0 +1,10 @@
+package main
+
+var f = func(a int) int { return 2 + a }
+
+func main() {
+	println(f(3))
+}
+
+// Output:
+// 5

_test/complex1.go

@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+func main() {
+	var c complex128
+	c = 1
+	fmt.Printf("%T %v\n", c, c)
+}
+
+// Output:
+// complex128 (1+0i)

_test/complex2.go

@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+func main() {
+	c := complex(1, 0)
+	c += 1
+	fmt.Printf("%T %v\n", c, c)
+}
+
+// Output:
+// complex128 (2+0i)

_test/complex3.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func main() {
+	var s int = 1 + complex(1, 0)
+	fmt.Printf("%T %v\n", s, s)
+}
+
+// Output
+// int 2

_test/composite3.go

@@ -0,0 +1,12 @@
+package main
+
+func main() {
+	var err error
+	var ok bool
+
+	_, ok = err.(interface{ IsSet() bool })
+	println(ok)
+}
+
+// Output:
+// false

_test/composite4.go

@@ -0,0 +1,11 @@
+package main
+
+func main() {
+	var err error
+
+	_, ok := err.(interface{ IsSet() bool })
+	println(ok)
+}
+
+// Output:
+// false

_test/composite5.go

@@ -0,0 +1,16 @@
+package main
+
+import "fmt"
+
+type T struct {
+	m uint16
+}
+
+var t = T{1<<2 | 1<<3}
+
+func main() {
+	fmt.Println(t)
+}
+
+// Output:
+// {12}

_test/composite6.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/containous/yaegi/_test/ct1"
+)
+
+type T struct {
+	m uint16
+}
+
+var t = T{1 << ct1.R}
+
+func main() {
+	fmt.Println(t)
+}
+
+// Output:
+// {2}

_test/const6.go

@@ -0,0 +1,22 @@
+package main
+
+const (
+	maxNonStarters = 30
+	maxBufferSize  = maxNonStarters + 2
+)
+
+type reorderBuffer struct {
+	rune [maxBufferSize]Properties
+}
+
+type Properties struct {
+	pos  uint8
+	size uint8
+}
+
+func main() {
+	println(len(reorderBuffer{}.rune))
+}
+
+// Output:
+// 32

_test/const7.go

@@ -0,0 +1,19 @@
+package main
+
+import "fmt"
+
+const (
+	a = iota
+	b
+	c
+	d
+)
+
+type T [c]int
+
+func main() {
+	fmt.Println(T{})
+}
+
+// Output:
+// [0 0]

_test/ct/ct1.go

@@ -0,0 +1,3 @@
+package ct
+
+func init() { println("hello from ct1") }

_test/ct/ct2.go

@@ -0,0 +1,5 @@
+// +build !dummy
+
+package ct
+
+func init() { println("hello from ct2") }

_test/ct/ct3.go

@@ -0,0 +1,5 @@
+// +build dummy
+
+package ct
+
+func init() { println("hello from ct3") }

_test/ct1/ct1.go

@@ -0,0 +1,9 @@
+package ct1
+
+type Class uint
+
+const (
+	L Class = iota
+	R
+	AL
+)

_test/foo-bar/foo-bar.go

@@ -0,0 +1,3 @@
+package bar
+
+var Name = "foo-bar"

_test/for6.go

@@ -0,0 +1,19 @@
+package main
+
+import "fmt"
+
+func main() {
+	s := "三"
+	for i := 0; i < len(s); i++ {
+		fmt.Printf("byte %d: %d\n", i, s[i])
+	}
+	for i, r := range s {
+		fmt.Printf("rune %d: %d\n", i, r)
+	}
+}
+
+// Output:
+// byte 0: 228
+// byte 1: 184
+// byte 2: 137
+// rune 0: 19977

_test/for7.go

@@ -0,0 +1,9 @@
+package main
+
+func main() {
+	for i := 0; i; {
+	}
+}
+
+// Error:
+// 4:14: non-bool used as for condition

_test/for8.go

@@ -0,0 +1,18 @@
+package main
+
+func main() {
+	for i := 0; i < 4; i++ {
+		for {
+			break
+		}
+		if i == 1 {
+			continue
+		}
+		println(i)
+	}
+}
+
+// Output:
+// 0
+// 2
+// 3

_test/fun10.go

@@ -0,0 +1,19 @@
+package main
+
+import "fmt"
+
+func f() func() {
+	return nil
+}
+
+func main() {
+	g := f()
+	fmt.Printf("%T %v\n", g, g)
+	if g == nil {
+		fmt.Println("nil func")
+	}
+}
+
+// Output:
+// func() <nil>
+// nil func

_test/fun11.go

@@ -0,0 +1,12 @@
+package main
+
+var f F
+
+type F func(int)
+
+func main() {
+	println("ok")
+}
+
+// Output:
+// ok

_test/fun9.go

@@ -0,0 +1,12 @@
+package main
+
+type T uint
+
+func main() {
+	type myint int
+	var i = myint(1)
+	println(i)
+}
+
+// Output:
+// 1

_test/if2.go

@@ -0,0 +1,13 @@
+package main
+
+import "fmt"
+
+func main() {
+	var i int
+	if i % 1000000 {
+		fmt.Println("oops")
+	}
+}
+
+// Error:
+// 7:5: non-bool used as if condition

_test/import7.go

@@ -0,0 +1,10 @@
+package main
+
+import "github.com/containous/yaegi/_test/foo-bar"
+
+func main() {
+	println(bar.Name)
+}
+
+// Output:
+// foo-bar

_test/import8.go

@@ -0,0 +1,10 @@
+package main
+
+import "github.com/containous/yaegi/_test/b1/foo"
+
+func main() {
+	println(foo.Desc)
+}
+
+// Output:
+// in b1/foo

_test/interface11.go

@@ -0,0 +1,27 @@
+package main
+
+import "fmt"
+
+type Error interface {
+	error
+	Code() string
+}
+
+type MyError Error
+
+type T struct {
+	Name string
+}
+
+func (t *T) Error() string { return "err: " + t.Name }
+func (t *T) Code() string  { return "code: " + t.Name }
+
+func newT(s string) MyError { return &T{s} }
+
+func main() {
+	t := newT("foo")
+	fmt.Println(t.Code())
+}
+
+// Output:
+// code: foo

_test/interface12.go

@@ -0,0 +1,18 @@
+package main
+
+type I1 interface {
+	Truc()
+}
+
+type T1 struct{}
+
+func (T1) Truc() { println("in T1 truc") }
+
+var x I1 = T1{}
+
+func main() {
+	x.Truc()
+}
+
+// Output:
+// in T1 truc

_test/interface13.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+)
+
+type X struct{}
+
+func (X) Foo() int {
+	return 1
+}
+func (X) Bar() int {
+	return 2
+}
+
+type Foo interface {
+	Foo() int
+}
+type Bar interface {
+	Bar() int
+}
+
+func main() {
+	var x X
+	var i Foo = x
+	j := i.(Bar)
+
+	fmt.Println(j.Bar())
+}
+
+// Output:
+// 2

_test/interface14.go

@@ -0,0 +1,17 @@
+package main
+
+type T struct{}
+
+func (t *T) Error() string { return "T: error" }
+
+var invalidT = &T{}
+
+func main() {
+	var err error
+	if err != invalidT {
+		println("ok")
+	}
+}
+
+// Output:
+// ok

_test/interface15.go

@@ -0,0 +1,28 @@
+package main
+
+type Fooer interface {
+	Foo() string
+}
+
+type Barer interface {
+	//fmt.Stringer
+	Fooer
+	Bar()
+}
+
+type T struct{}
+
+func (t *T) Foo() string { return "T: foo" }
+func (*T) Bar()          { println("in bar") }
+
+var t = &T{}
+
+func main() {
+	var f Barer
+	if f != t {
+		println("ok")
+	}
+}
+
+// Output:
+// ok

_test/interface16.go

@@ -0,0 +1,25 @@
+package main
+
+import "fmt"
+
+type Barer interface {
+	fmt.Stringer
+	Bar()
+}
+
+type T struct{}
+
+func (*T) String() string { return "T: nothing" }
+func (*T) Bar()           { println("in bar") }
+
+var t = &T{}
+
+func main() {
+	var f Barer
+	if f != t {
+		println("ok")
+	}
+}
+
+// Output:
+// ok

_test/interface17.go

@@ -0,0 +1,17 @@
+package main
+
+type T struct{}
+
+func (t T) Error() string { return "T: error" }
+
+var invalidT = T{}
+
+func main() {
+	var err error
+	if err != invalidT {
+		println("ok")
+	}
+}
+
+// Output:
+// ok

_test/interface18.go

@@ -0,0 +1,18 @@
+package main
+
+type T struct{}
+
+func (t *T) Error() string { return "T: error" }
+func (*T) Foo()            { println("foo") }
+
+var invalidT = &T{}
+
+func main() {
+	var err error
+	if err != invalidT {
+		println("ok")
+	}
+}
+
+// Output:
+// ok

_test/interface19.go

@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+var I interface{}
+
+func main() {
+	fmt.Printf("%T %v\n", I, I)
+}
+
+// Output:
+// <nil> <nil>

_test/map19.go

@@ -0,0 +1,16 @@
+package main
+
+import "fmt"
+
+type cmap struct {
+	servers map[int64]*server
+}
+
+type server struct {
+	cm *cmap
+}
+
+func main() {
+	m := cmap{}
+	fmt.Println(m)
+}

_test/map20.go

@@ -0,0 +1,10 @@
+package main
+
+var a = map[int]bool{1: true, 2: true}
+
+func main() {
+	println(a[1] && true)
+}
+
+// Output:
+// true

_test/math1.go

@@ -0,0 +1,13 @@
+package main
+
+import "math"
+
+func main() {
+	var f float32
+	if f < math.MaxFloat32 {
+		println("ok")
+	}
+}
+
+// Output:
+// ok

_test/method27.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+)
+
+type AuthenticatedRequest struct {
+	http.Request
+	Username string
+}
+
+func main() {
+	a := &AuthenticatedRequest{}
+	fmt.Println("ua:", a.UserAgent())
+
+}
+
+// Output:
+// ua:

_test/method28.go

@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+type T struct {
+	Name string
+}
+
+func (T) create() *T {
+	return &T{"Hello"}
+}
+
+func main() {
+	fmt.Println(T{}.create())
+}
+
+// Output:
+// &{Hello}

_test/method29.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"context"
+	"net"
+)
+
+var lookupHost = net.DefaultResolver.LookupHost
+
+func main() {
+	res, err := lookupHost(context.Background(), "localhost")
+	println(len(res) > 0, err == nil)
+}
+
+// Output:
+// true true

_test/method30.go

@@ -0,0 +1,20 @@
+package main
+
+type T struct {
+	Name string
+}
+
+func (t *T) foo(a string) string {
+	return t.Name + a
+}
+
+var g = &T{"global"}
+
+var f = g.foo
+
+func main() {
+	println(f("-x"))
+}
+
+// Output:
+// global-x

_test/method31.go

@@ -0,0 +1,29 @@
+package main
+
+import "fmt"
+
+var db dbWrapper
+
+type dbWrapper struct {
+	DB *cmap
+}
+
+func (d *dbWrapper) get() *cmap {
+	return d.DB
+}
+
+type cmap struct {
+	name string
+}
+
+func (c *cmap) f() {
+	fmt.Println("in f, c", c)
+}
+
+func main() {
+	db.DB = &cmap{name: "test"}
+	db.get().f()
+}
+
+// Output:
+// in f, c &{test}

_test/nil0.go

@@ -0,0 +1,15 @@
+package main
+
+import "fmt"
+
+func f() (host, port string, err error) {
+	return "", "", nil
+}
+
+func main() {
+	h, p, err := f()
+	fmt.Println(h, p, err)
+}
+
+// Output:
+//   <nil>

_test/nil1.go

@@ -0,0 +1,12 @@
+package main
+
+func main() {
+	var a error = nil
+
+	if a == nil || a.Error() == "nil" {
+		println("a is nil")
+	}
+}
+
+// Output:
+// a is nil

_test/op4.go

@@ -0,0 +1,9 @@
+package main
+
+func main() {
+	i := 100
+	println(i % 1e2)
+}
+
+// Output:
+// 0

_test/or0.go

@@ -0,0 +1,9 @@
+package main
+
+func main() {
+	c := false
+	println(c || !c)
+}
+
+// Output:
+// true

_test/or1.go

@@ -0,0 +1,9 @@
+package main
+
+func main() {
+	c := false
+	println(!c || c)
+}
+
+// Output:
+// true

_test/or2.go

@@ -0,0 +1,10 @@
+package main
+
+var a = false || true
+
+func main() {
+	println(a)
+}
+
+// Output:
+// true

_test/primes.go

@@ -0,0 +1,26 @@
+package main
+
+func Primes(n int) int {
+	var xs []int
+	for i := 2; len(xs) < n; i++ {
+		ok := true
+		for _, x := range xs {
+			if i%x == 0 {
+				ok = false
+				break
+			}
+		}
+		if !ok {
+			continue
+		}
+		xs = append(xs, i)
+	}
+	return xs[n-1]
+}
+
+func main() {
+	println(Primes(3))
+}
+
+// Output:
+// 5

_test/ptr8.go

@@ -0,0 +1,10 @@
+package main
+
+var a = func() *bool { b := true; return &b }()
+
+func main() {
+	println(*a && true)
+}
+
+// Output:
+// true

_test/range0.go

@@ -0,0 +1,14 @@
+package main
+
+import "fmt"
+
+func main() {
+	v := []int{1, 2, 3}
+	for i := range v {
+		v = append(v, i)
+	}
+	fmt.Println(v)
+}
+
+// Output:
+// [1 2 3 0 1 2]

_test/range1.go

@@ -0,0 +1,14 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{2, 1, 0}
+	for _, v := range a {
+		a[v] = v
+	}
+	fmt.Println(a)
+}
+
+// Output:
+// [0 1 2]

_test/range2.go

@@ -0,0 +1,14 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := [...]int{2, 1, 0}
+	for _, v := range &a {
+		a[v] = v
+	}
+	fmt.Println(a)
+}
+
+// Output:
+// [2 1 2]

_test/range3.go

@@ -0,0 +1,14 @@
+package main
+
+import "fmt"
+
+func main() {
+	m := map[int]bool{1: true, 3: true, 5: true}
+	for k := range m {
+		m[k*2] = true
+	}
+	fmt.Println("ok")
+}
+
+// Output:
+// ok

_test/range4.go

@@ -0,0 +1,15 @@
+package main
+
+import "fmt"
+
+func main() {
+	m := map[int]bool{1: true, 3: true, 5: true}
+	for _, v := range m {
+		fmt.Println(v)
+	}
+}
+
+// Output:
+// true
+// true
+// true

_test/range5.go

@@ -0,0 +1,15 @@
+package main
+
+import "fmt"
+
+func main() {
+	m := map[int]bool{1: true, 3: true, 5: true}
+	var n int
+	for range m {
+		n++
+	}
+	fmt.Println(n)
+}
+
+// Output:
+// 3

_test/range6.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+	"math"
+)
+
+func main() {
+	m := map[float64]bool{math.NaN(): true, math.NaN(): true, math.NaN(): true}
+	for _, v := range m {
+		fmt.Println(v)
+	}
+}
+
+// Output:
+// true
+// true
+// true

_test/ret7.go

@@ -0,0 +1,11 @@
+package main
+
+func one() uint {
+	return 1
+}
+func main() {
+	println(one())
+}
+
+// Output:
+// 1

_test/shift3.go

@@ -0,0 +1,10 @@
+package main
+
+const a = 1.0
+
+const b = a + 3
+
+func main() { println(b << (1)) }
+
+// Output:
+// 8

_test/str3.go

@@ -0,0 +1,11 @@
+package main
+
+import "strconv"
+
+func main() {
+	str := strconv.Itoa(101)
+	println(str[0] == '1')
+}
+
+// Output:
+// true

_test/str4.go

@@ -0,0 +1,11 @@
+package main
+
+import "unicode/utf8"
+
+func main() {
+	r, _ := utf8.DecodeRuneInString("Hello")
+	println(r < utf8.RuneSelf)
+}
+
+// Output:
+// true

_test/struct29.go

@@ -0,0 +1,19 @@
+package main
+
+type T1 struct {
+	A []T2
+	B []T2
+}
+
+type T2 struct {
+	name string
+}
+
+var t = T1{}
+
+func main() {
+	println("ok")
+}
+
+// Output:
+// ok

_test/struct30.go

@@ -0,0 +1,19 @@
+package main
+
+type T1 struct {
+	A []T2
+	M map[uint64]T2
+}
+
+type T2 struct {
+	name string
+}
+
+var t = T1{}
+
+func main() {
+	println("ok")
+}
+
+// Output:
+// ok

_test/struct31.go

@@ -0,0 +1,14 @@
+package main
+
+type T struct {
+	bool
+}
+
+var t = T{true}
+
+func main() {
+	println(t.bool && true)
+}
+
+// Output:
+// true

_test/switch21.go

@@ -0,0 +1,17 @@
+package main
+
+import "fmt"
+
+func main() {
+	var err error
+
+	switch v := err.(type) {
+	case fmt.Formatter:
+		println("formatter")
+	default:
+		fmt.Println(v)
+	}
+}
+
+// Output:
+// <nil>

_test/switch22.go

@@ -0,0 +1,21 @@
+package main
+
+type T struct {
+	Name string
+}
+
+func f(t interface{}) {
+	switch ext := t.(type) {
+	case *T:
+		println("*T", ext.Name)
+	default:
+		println("unknown")
+	}
+}
+
+func main() {
+	f(&T{"truc"})
+}
+
+// Output:
+// *T truc

_test/tag0.go

@@ -0,0 +1,15 @@
+// The following comment line has the same effect as 'go run -tags=dummy'
+//yaegi:tags dummy
+
+package main
+
+import _ "github.com/containous/yaegi/_test/ct"
+
+func main() {
+	println("bye")
+}
+
+// Output:
+// hello from ct1
+// hello from ct3
+// bye

_test/time10.go

@@ -0,0 +1,13 @@
+package main
+
+import "time"
+
+var UnixTime func(int64, int64) time.Time
+
+func main() {
+	UnixTime = time.Unix
+	println(UnixTime(1e9, 0).In(time.UTC).Minute())
+}
+
+// Output:
+// 46

_test/time11.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+const df = time.Minute * 30
+
+func main() {
+	fmt.Printf("df: %v %T\n", df, df)
+}
+
+// Output:
+// df: 30m0s time.Duration

_test/time5.go

@@ -6,7 +6,7 @@ import (
 )
 
 func main() {
-	t := time.Unix(1e9, 0)
+	t := time.Unix(1e9, 0).In(time.UTC)
 	fmt.Println(t.Minute())
 }
 

_test/time9.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"fmt"
+	"time"
+)
+
+func main() {
+	fmt.Println((5 * time.Minute).Seconds())
+}
+
+// Output:
+// 300

_test/type15.go

@@ -0,0 +1,9 @@
+package main
+
+func main() {
+	err := error(nil)
+	println(err == nil)
+}
+
+// Output:
+// true

_test/type16.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := uint8(15) ^ byte(0)
+	fmt.Printf("%T %v\n", a, a)
+}
+
+// Output:
+// uint8 15

_test/type17.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func main() {
+	a := int32(15) ^ rune(0)
+	fmt.Printf("%T %v\n", a, a)
+}
+
+// Output:
+// int32 15

_test/var10.go

@@ -0,0 +1,11 @@
+package main
+
+var _ = true
+var _ = "hello"
+
+func main() {
+	println("hello")
+}
+
+// Output:
+// hello

_test/var11.go

@@ -0,0 +1,10 @@
+package main
+
+var a, _, _, b = 1, true, "foo", 2
+
+func main() {
+	println(a, b)
+}
+
+// Output:
+// 1 2

_test/var9.go

@@ -0,0 +1,11 @@
+package main
+
+var a = "sdofjsdfj"
+var z = a[0:2]
+
+func main() {
+	println(z)
+}
+
+// Output:
+// sd

_test/variadic5.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"fmt"
+)
+
+type A struct {
+}
+
+func (a A) f(vals ...bool) {
+	for _, v := range vals {
+		fmt.Println(v)
+	}
+}
+
+func main() {
+	a := A{}
+	a.f(true)
+}
+
+// Output:
+// true

cmd/goexports/goexports.go

@@ -1,7 +1,7 @@
 //go:generate go build
 
 /*
-Goexports generates wrappers of package exported symbols
+Goexports generates wrappers of package exported symbols.
 
 Output files are written in the current directory, and prefixed with the go version.
 
@@ -26,6 +26,7 @@ import (
 	"go/constant"
 	"go/format"
 	"go/importer"
+	"go/token"
 	"go/types"
 	"io/ioutil"
 	"log"
@@ -114,7 +115,7 @@ type Wrap struct {
 }
 
 func genContent(dest, pkgName, license string) ([]byte, error) {
-	p, err := importer.For("source", nil).Import(pkgName)
+	p, err := importer.ForCompiler(token.NewFileSet(), "source", nil).Import(pkgName)
 	if err != nil {
 		return nil, err
 	}
@@ -147,7 +148,12 @@ func genContent(dest, pkgName, license string) ([]byte, error) {
 		pname := path.Base(pkgName) + "." + name
 		switch o := o.(type) {
 		case *types.Const:
-			val[name] = Val{fixConst(pname, o.Val()), false}
+			if b, ok := o.Type().(*types.Basic); ok && (b.Info()&types.IsUntyped) != 0 {
+				// convert untyped constant to right type to avoid overflow
+				val[name] = Val{fixConst(pname, o.Val()), false}
+			} else {
+				val[name] = Val{pname, false}
+			}
 		case *types.Func:
 			val[name] = Val{pname, false}
 		case *types.Var:
@@ -248,7 +254,14 @@ func genContent(dest, pkgName, license string) ([]byte, error) {
 
 // fixConst checks untyped constant value, converting it if necessary to avoid overflow
 func fixConst(name string, val constant.Value) string {
-	if val.Kind() == constant.Int {
+	switch val.Kind() {
+	case constant.Float:
+		str := val.ExactString()
+		if _, err := strconv.ParseFloat(str, 32); err == nil {
+			return "float32(" + name + ")"
+		}
+		return name
+	case constant.Int:
 		str := val.ExactString()
 		i, err := strconv.ParseInt(str, 0, 64)
 		if err == nil {
@@ -265,8 +278,10 @@ func fixConst(name string, val constant.Value) string {
 		if err == nil {
 			return "uint64(" + name + ")"
 		}
+		return name
+	default:
+		return name
 	}
-	return name
 }
 
 // genLicense generates the correct LICENSE header text from the provided