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builtin_test.go
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/*
Copyright 2021 The GoPlus Authors (goplus.org)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package gogen
import (
"bytes"
"go/ast"
"go/constant"
"go/token"
"go/types"
"log"
"math/big"
"strings"
"testing"
"unsafe"
"github.com/goplus/gogen/internal"
"github.com/goplus/gogen/internal/go/format"
"github.com/goplus/gogen/packages"
)
var (
gblConf = getConf()
)
func init() {
debugImportIox = true
}
func getConf() *Config {
fset := token.NewFileSet()
imp := packages.NewImporter(fset)
return &Config{Fset: fset, Importer: imp}
}
func TestSwitchStmtThen(t *testing.T) {
pkg := NewPackage("", "foo", nil)
cb := pkg.CB()
defer func() {
if e := recover(); e != "use None() for empty switch tag" {
t.Fatal("TestSwitchStmtThen:", e)
}
}()
cb.Switch().Then()
}
func TestSwitchStmtThen2(t *testing.T) {
pkg := NewPackage("", "foo", nil)
cb := pkg.CB()
defer func() {
if e := recover(); e != "switch statement has too many init statements" {
t.Fatal("TestSwitchStmtThen:", e)
}
}()
cb.Switch()
cb.emitStmt(&ast.EmptyStmt{})
cb.emitStmt(&ast.EmptyStmt{})
cb.None().Then()
}
func TestIfStmtThen(t *testing.T) {
pkg := NewPackage("", "foo", nil)
cb := pkg.CB()
defer func() {
if e := recover(); e != "if statement has too many init statements" {
t.Fatal("TestIfStmtThen:", e)
}
}()
cb.If()
cb.emitStmt(&ast.EmptyStmt{})
cb.emitStmt(&ast.EmptyStmt{})
cb.Val(true).Then()
}
func TestIfStmtElse(t *testing.T) {
pkg := NewPackage("", "foo", nil)
cb := pkg.CB()
defer func() {
if e := recover(); e != "else statement already exists" {
t.Fatal("TestIfStmtThen:", e)
}
}()
cb.If().Else().Else()
}
func TestCommCase(t *testing.T) {
pkg := NewPackage("", "foo", nil)
cb := pkg.CB()
cb.emitStmt(&ast.EmptyStmt{})
cb.emitStmt(&ast.EmptyStmt{})
defer func() {
if e := recover(); e != "multi commStmt in comm clause?" {
t.Fatal("TestCommCase:", e)
}
}()
c := &commCase{}
c.Then(cb)
}
func TestCheckGopDeps(t *testing.T) {
pkg := NewPackage("", "foo", nil)
file := pkg.CurFile()
id := file.newImport("env", "github.com/goplus/gop/env")
file.forceImport("github.com/qiniu/x/errors")
file.getDecls(pkg)
if v := file.CheckGopDeps(pkg); v != FlagDepModX {
t.Fatal("CheckGopDeps:", v)
}
id.Obj.Data = importUsed(true)
if v := file.CheckGopDeps(pkg); v != FlagDepModGop|FlagDepModX {
t.Fatal("CheckGopDeps:", v)
}
}
func TestInitGopPkg(t *testing.T) {
pkg := NewPackage("", "foo", nil)
pkg.Types.Scope().Insert(types.NewVar(
token.NoPos, pkg.Types, "GopPackage", types.Typ[types.Bool],
))
pkg.initGopPkg(nil, pkg.Types)
}
func TestCheckOverloads(t *testing.T) {
defer func() {
if e := recover(); e != "checkOverloads: should be string constant - foo" {
t.Fatal("TestCheckOverloads:", e)
}
}()
scope := types.NewScope(nil, 0, 0, "")
scope.Insert(types.NewLabel(0, nil, "foo"))
checkOverloads(scope, "bar")
checkOverloads(scope, "foo")
}
func TestCheckGopPkgNoop(t *testing.T) {
pkg := NewPackage("", "foo", nil)
pkg.Types.Scope().Insert(types.NewConst(
token.NoPos, pkg.Types, "GopPackage", types.Typ[types.UntypedBool], constant.MakeBool(true),
))
if _, ok := checkGopPkg(pkg); ok {
t.Fatal("checkGopPkg: ok?")
}
defer func() {
if recover() == nil {
t.Fatal("expDeps.typ: no panic?")
}
}()
var ed expDeps
tyParam := types.NewTypeParam(types.NewTypeName(0, pkg.Types, "T", nil), TyEmptyInterface)
ed.typ(tyParam)
ed.typ(types.NewUnion([]*types.Term{types.NewTerm(false, tyParam)}))
ed.typ(&unboundFuncParam{})
}
func TestDenoted(t *testing.T) {
if denoteRecv(&ast.SelectorExpr{Sel: ast.NewIdent("foo")}) != nil {
t.Fatal("denoteRecv: not nil?")
}
id := ast.NewIdent("foo")
obj := &ast.Object{}
setDenoted(id, obj)
if getDenoted(id) != obj {
t.Fatal("setDenoted failed")
}
}
func TestCheckNamed(t *testing.T) {
foo := types.NewPackage("github.com/bar/foo", "foo")
tn := types.NewTypeName(0, foo, "t", nil)
typ := types.NewNamed(tn, types.Typ[types.Int], nil)
if v, ok := checkNamed(types.NewPointer(typ)); !ok || v != typ {
t.Fatal("TestCheckNamed failed:", v, ok)
}
}
func TestErrMethodSig(t *testing.T) {
pkg := NewPackage("", "foo", nil)
foo := types.NewPackage("github.com/bar/foo", "foo")
tn := types.NewTypeName(0, foo, "t", nil)
recv := types.NewNamed(tn, types.Typ[types.Int], nil)
t.Run("methodToFuncSig global func", func(t *testing.T) {
fnt := types.NewSignatureType(nil, nil, nil, nil, nil, false)
fn := types.NewFunc(0, foo, "bar", fnt)
if methodToFuncSig(pkg, fn, &internal.Elem{}) != fnt {
t.Fatal("methodToFuncSig failed")
}
})
t.Run("recv not pointer", func(t *testing.T) {
defer func() {
if e := recover(); e != "recv of method github.com/bar/foo.t.bar isn't a pointer\n" {
t.Fatal("TestErrMethodSigOf:", e)
}
}()
method := types.NewSignatureType(types.NewVar(0, foo, "", recv), nil, nil, nil, nil, false)
arg := &Element{
Type: &TypeType{typ: types.NewPointer(recv)},
}
methodSigOf(method, memberFlagMethodToFunc, arg, &ast.SelectorExpr{Sel: ast.NewIdent("bar")})
})
}
func TestMatchOverloadNamedTypeCast(t *testing.T) {
pkg := NewPackage("", "foo", nil)
foo := types.NewPackage("github.com/bar/foo", "foo")
tn := types.NewTypeName(0, foo, "t", nil)
types.NewNamed(tn, types.Typ[types.Int], nil)
_, err := matchOverloadNamedTypeCast(pkg, tn, nil, nil, 0)
if err == nil || err.Error() != "-: typecast github.com/bar/foo.t not found" {
t.Fatal("TestMatchOverloadNamedTypeCast:", err)
}
}
func TestSetTypeParams(t *testing.T) {
pkg := types.NewPackage("", "")
tn := types.NewTypeName(0, pkg, "foo__1", nil)
named := types.NewNamed(tn, TyByte, nil)
setTypeParams(nil, named, &ast.TypeSpec{}, nil)
}
func TestOverloadNameds(t *testing.T) {
pkg := types.NewPackage("", "")
tn := types.NewTypeName(0, pkg, "foo__1", nil)
named := types.NewNamed(tn, TyByte, nil)
func() {
defer func() {
if e := recover(); e != "overload type foo__1 out of range 0..0\n" {
t.Fatal("TestOverloadFuncs:", e)
}
}()
overloadNameds(5, []*types.Named{named})
}()
func() {
defer func() {
if e := recover(); e != "overload type foo__1 exists?\n" {
t.Fatal("TestOverloadFuncs:", e)
}
}()
overloadNameds(5, []*types.Named{named, named})
}()
}
func TestOverloadFuncs(t *testing.T) {
pkg := types.NewPackage("", "")
fn := types.NewFunc(0, pkg, "foo__1", nil)
func() {
defer func() {
if e := recover(); e != "overload func foo__1 out of range 0..0\n" {
t.Fatal("TestOverloadFuncs:", e)
}
}()
overloadFuncs(5, []types.Object{fn})
}()
func() {
defer func() {
if e := recover(); e != "overload func foo__1 exists?\n" {
t.Fatal("TestOverloadFuncs:", e)
}
}()
overloadFuncs(5, []types.Object{fn, fn})
}()
}
func TestCheckTypeMethod(t *testing.T) {
scope := types.NewScope(nil, 0, 0, "")
func() {
defer func() {
if e := recover(); e != "checkTypeMethod: notFound not found or not a named type\n" {
t.Fatal("TestCheckTypeMethod:", e)
}
}()
checkTypeMethod(scope, "_notFound__method")
}()
}
func TestLookupFunc(t *testing.T) {
scope := types.NewScope(nil, 0, 0, "")
func() {
defer func() {
if e := recover(); e != "lookupFunc: (T not a valid method, use `(T).method` please\n" {
t.Fatal("TestLookupFunc:", e)
}
}()
lookupFunc(scope, "(T", "")
}()
func() {
defer func() {
if e := recover(); e != "lookupFunc: notFound not found\n" {
t.Fatal("TestLookupFunc:", e)
}
}()
lookupFunc(scope, "notFound", "")
}()
}
func TestNewPosNode(t *testing.T) {
if ret := NewPosNode(1); ret.Pos() != 1 || ret.End() != 1 {
t.Fatal("NewPosNode(1): end -", ret.End())
}
if ret := NewPosNode(1, 2); ret.End() != 2 {
t.Fatal("NewPosNode(1, 2): end -", ret.End())
}
}
func TestGetSrcPos(t *testing.T) {
if getSrcPos(nil) != token.NoPos {
t.Fatal("TestGetSrcPos: not nopos?")
}
}
func TestExportFields(t *testing.T) {
pkg := NewPackage("", "foo", nil)
fields := []*types.Var{
types.NewField(token.NoPos, pkg.Types, "Y", types.Typ[types.Int], false),
types.NewField(token.NoPos, pkg.Types, "X__u", types.Typ[types.String], false),
}
tyT := pkg.NewType("T").InitType(pkg, types.NewStruct(fields, nil))
pkg.ExportFields(tyT)
if name := pkg.cb.getFieldName(tyT, "y"); name != "Y" {
t.Fatal("getFieldName y:", name)
}
if name := pkg.cb.getFieldName(tyT, "__u"); name != "X__u" {
t.Fatal("getFieldName __u:", name)
}
if CPubName("123") != "123" {
t.Fatal("CPubName(123) failed")
}
}
func TestIsTypeEx(t *testing.T) {
pkg := types.NewPackage("", "foo")
o := NewInstruction(0, pkg, "bar", lenInstr{})
if !IsTypeEx(o.Type()) {
t.Fatal("IsTypeEx: not Instruction?")
}
of := NewOverloadFunc(0, pkg, "bar")
if !IsTypeEx(of.Type()) {
t.Fatal("IsTypeEx: not OverloadFunc?")
}
if IsTypeEx(tyInt) {
t.Fatal("IsTypeEx: not tyInt?")
}
}
func TestGetBuiltinTI(t *testing.T) {
pkg := NewPackage("", "foo", nil)
cb := &pkg.cb
if cb.getBuiltinTI(types.NewPointer(types.Typ[0])) != nil {
t.Fatal("TestGetBuiltinTI failed")
}
tiStr := cb.getBuiltinTI(types.Typ[types.String])
sig := tiStr.lookupByName("Index")
if sig == nil || sig.Params().Len() != 1 {
t.Fatal("string.Index (Params):", sig)
}
if sig == nil || sig.Results().Len() != 1 {
t.Fatal("string.Index (Results):", sig)
}
if tsig := tiStr.lookupByName("__unknown"); tsig != nil {
t.Fatal("tsig:", tsig)
}
}
func TestFindMethodType(t *testing.T) {
pkg := NewPackage("", "foo", nil)
tyFile := pkg.Import("os").Ref("File").Type().(*types.Named)
sig := findMethodType(&pkg.cb, tyFile, "Gop_Enum")
if sig == nil || sig.Params().Len() != 0 {
t.Fatal("os.File.GopEnum (Params):", sig)
}
if sig == nil || sig.Results().Len() != 1 {
t.Fatal("os.File.GopEnum (Results):", sig)
}
}
func TestContractName(t *testing.T) {
testcases := []struct {
Contract
name string
}{
{any, "any"},
{capable, "capable"},
{lenable, "lenable"},
{makable, "makable"},
{cbool, "bool"},
{ninteger, "ninteger"},
{orderable, "orderable"},
{integer, "integer"},
{number, "number"},
{addable, "addable"},
{comparable, "comparable"},
}
for _, c := range testcases {
if c.String() != c.name {
t.Fatal("Unexpected contract name:", c.name)
}
}
}
func TestContract(t *testing.T) {
pkg := NewPackage("", "foo", nil)
at := types.NewPackage("foo", "foo")
foo := pkg.Import("github.com/goplus/gogen/internal/foo")
tfoo := foo.Ref("Foo").Type()
tarr := types.NewArray(tyInt, 10)
testcases := []struct {
Contract
typ types.Type
result bool
}{
{integer, tyInt, true},
{capable, types.Typ[types.String], false},
{capable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), tarr, nil), true},
{capable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), types.NewPointer(tarr), nil), true},
{capable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), types.Typ[types.String], nil), false},
{lenable, types.Typ[types.String], true},
{lenable, types.NewMap(tyInt, tyInt), true},
{lenable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), types.Typ[types.String], nil), true},
{makable, types.NewMap(tyInt, tyInt), true},
{makable, types.NewChan(0, tyInt), true},
{makable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), tyInt, nil), false},
{comparable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), tyInt, nil), true},
{comparable, types.NewSlice(tyInt), false},
{comparable, types.NewMap(tyInt, tyInt), false},
{comparable, types.NewChan(0, tyInt), true},
{comparable, types.NewSignatureType(nil, nil, nil, nil, nil, false), false},
{comparable, NewTemplateSignature(nil, nil, nil, nil, false), false},
{addable, types.NewNamed(types.NewTypeName(0, at, "bar", nil), types.Typ[types.Bool], nil), false},
{addable, tfoo, true},
}
for _, c := range testcases {
if c.Match(pkg, c.typ) != c.result {
t.Fatalf("%s.Match %v expect %v\n", c.String(), c.typ, c.result)
}
}
}
func TestComparableTo(t *testing.T) {
tyStr := types.NewNamed(types.NewTypeName(token.NoPos, nil, "str", nil), types.Typ[types.String], nil)
cases := []struct {
v, t types.Type
ret bool
}{
{types.Typ[types.UntypedNil], types.Typ[types.Int], false},
{types.Typ[types.UntypedComplex], types.Typ[types.Int], false},
{types.Typ[types.UntypedFloat], types.Typ[types.Bool], false},
{types.Typ[types.UntypedFloat], types.Typ[types.Complex128], true},
{types.Typ[types.String], types.Typ[types.Bool], false},
{types.Typ[types.String], types.Typ[types.String], true},
{types.Typ[types.String], tyStr, true},
{types.Typ[types.UntypedBool], types.Typ[types.Bool], true},
{types.Typ[types.Bool], types.Typ[types.UntypedBool], true},
{types.Typ[types.UntypedRune], types.Typ[types.UntypedString], false},
{types.Typ[types.Rune], types.Typ[types.UntypedString], false},
{types.Typ[types.UntypedInt], types.Typ[types.Int64], true},
{types.Typ[types.Int64], types.Typ[types.UntypedInt], true},
}
pkg := NewPackage("", "foo", gblConf)
for _, a := range cases {
av := &Element{Type: a.v}
at := &Element{Type: a.t}
if ret := ComparableTo(pkg, av, at); ret != a.ret {
t.Fatalf("Failed: ComparableTo %v => %v returns %v\n", a.v, a.t, ret)
}
}
}
func TestComparableTo2(t *testing.T) {
pkg := NewPackage("foo", "foo", gblConf)
methods := []*types.Func{
types.NewFunc(token.NoPos, pkg.Types, "Bar", types.NewSignatureType(nil, nil, nil, nil, nil, false)),
}
methods2 := []*types.Func{
types.NewFunc(token.NoPos, pkg.Types, "F", types.NewSignatureType(nil, nil, nil, nil, nil, false)),
}
tyInterf := types.NewInterfaceType(methods, nil).Complete()
tyInterfF := types.NewInterfaceType(methods2, nil).Complete()
bar1 := pkg.NewType("bar").InitType(pkg, tyInterf)
bar2 := pkg.NewType("bar2").InitType(pkg, tyInterf)
f1 := pkg.NewType("f1").InitType(pkg, tyInterfF)
tySlice := types.NewSlice(types.Typ[types.Int])
cases := []struct {
v, t types.Type
ret bool
}{
{bar1, bar2, true},
{bar1, types.Typ[types.Int], false},
{types.Typ[types.Int], bar2, false},
{bar1, tySlice, false},
{tySlice, bar2, false},
{f1, bar2, false},
{types.Typ[types.UntypedNil], bar2, true},
{bar1, types.Typ[types.UntypedNil], true},
{tySlice, types.Typ[types.UntypedInt], false},
{types.Typ[types.UntypedInt], tySlice, false},
{TyEmptyInterface, types.Typ[types.UntypedInt], true},
{types.Typ[types.UntypedInt], TyEmptyInterface, true},
}
for _, a := range cases {
av := &Element{Type: a.v}
at := &Element{Type: a.t}
if ret := ComparableTo(pkg, av, at); ret != a.ret {
t.Fatalf("Failed: ComparableTo %v => %v returns %v\n", a.v, a.t, ret)
}
}
av := &Element{Type: types.Typ[types.UntypedFloat], CVal: constant.MakeFromLiteral("1e1", token.FLOAT, 0)}
at := &Element{Type: types.Typ[types.Int]}
if !ComparableTo(pkg, av, at) {
t.Fatalf("Failed: ComparableTo %v => %v returns %v\n", av, at, false)
}
}
func TestAssignableTo(t *testing.T) {
cases := []struct {
v, t types.Type
ret bool
}{
{types.Typ[types.UntypedInt], types.Typ[types.Int], true},
{types.Typ[types.Int], types.Typ[types.UntypedInt], false},
{types.Typ[types.UntypedFloat], types.Typ[types.UntypedComplex], true},
{types.Typ[types.UntypedComplex], types.Typ[types.UntypedFloat], false},
{types.Typ[types.UntypedInt], types.Typ[types.UntypedFloat], true},
{types.Typ[types.UntypedFloat], types.Typ[types.UntypedInt], false},
{types.Typ[types.UntypedFloat], types.Typ[types.UntypedBool], false},
{types.Typ[types.UntypedInt], types.Typ[types.UntypedRune], false},
{types.Typ[types.UntypedFloat], types.Typ[types.Int], false},
{types.Typ[types.UntypedFloat], types.Typ[types.UntypedRune], false},
{types.Typ[types.UntypedRune], types.Typ[types.UntypedInt], true},
{types.Typ[types.UntypedRune], types.Typ[types.UntypedFloat], true},
}
pkg := NewPackage("", "foo", gblConf)
for _, a := range cases {
if ret := AssignableTo(pkg, a.v, a.t); ret != a.ret {
t.Fatalf("Failed: AssignableTo %v => %v returns %v\n", a.v, a.t, ret)
}
}
if Default(pkg, types.Typ[types.UntypedInt]) != types.Typ[types.Int] {
t.Fatal("gogen.Default failed")
}
}
func TestToIndex(t *testing.T) {
if toIndex('b') != 11 {
t.Fatal("toIndex('b') != 11")
}
defer func() {
if recover() != "invalid character out of [0-9,a-z]" {
t.Fatal("toIndex('!') not panic?")
}
}()
toIndex('!')
}
func TestCheckOverloadMethod(t *testing.T) {
sig := types.NewSignatureType(nil, nil, nil, nil, nil, false)
if _, ok := CheckOverloadMethod(sig); ok {
t.Fatal("TestCheckOverloadMethod failed:")
}
}
func TestIsFunc(t *testing.T) {
if IsFunc(nil) {
t.Fatal("nil is func?")
}
if !IsFunc(types.NewSignatureType(nil, nil, nil, nil, nil, false)) {
t.Fatal("func() is not func?")
}
}
func TestCheckUdt(t *testing.T) {
o := types.NewNamed(types.NewTypeName(token.NoPos, nil, "foo", nil), types.Typ[types.Int], nil)
var frs forRangeStmt
var cb CodeBuilder
if _, ok := frs.checkUdt(&cb, o); ok {
t.Fatal("findMethod failed: bar exists?")
}
}
func TestNodeInterp(t *testing.T) {
interp := nodeInterp{}
if src := interp.LoadExpr(nil); src != "" {
t.Fatal("TestNodeInterp interp.LoadExpr failed:", src)
}
if caller := getCaller(&internal.Elem{}); caller != "the function call" {
t.Fatal("TestNodeInterp getCaller failed:", caller)
}
if caller, pos := getFunExpr(nil); caller != "the closure call" || pos != token.NoPos {
t.Fatal("TestNodeInterp getGoExpr failed:", caller, pos)
}
}
func TestInternalStack(t *testing.T) {
var cb CodeBuilder
cb.InternalStack().Push(nil)
if cb.Get(-1) != nil {
t.Fatal("InternalStack/Get failed")
}
}
func TestCheckInterface(t *testing.T) {
var pkg = new(Package)
var cb = &pkg.cb
if typ, ok := cb.checkInterface(types.Typ[types.Int]); typ != nil || ok {
t.Fatal("TestCheckInterface failed:", typ, ok)
}
cb.loadNamed = func(at *Package, t *types.Named) {
t.SetUnderlying(TyEmptyInterface)
}
named := types.NewNamed(types.NewTypeName(0, nil, "foo", nil), nil, nil)
if typ, ok := cb.checkInterface(named); typ == nil || !ok {
t.Fatal("TestCheckInterface failed:", typ, ok)
}
}
func TestEnsureLoaded(t *testing.T) {
var pkg = new(Package)
var cb = &pkg.cb
cb.loadNamed = func(at *Package, t *types.Named) {
panic("loadNamed")
}
defer func() {
if e := recover(); e != "loadNamed" {
t.Fatal("TestEnsureLoaded failed")
}
}()
named := types.NewNamed(types.NewTypeName(0, nil, "foo", nil), nil, nil)
cb.ensureLoaded(named)
}
func TestGetUnderlying(t *testing.T) {
var pkg = new(Package)
var cb = &pkg.cb
cb.loadNamed = func(at *Package, t *types.Named) {
panic("loadNamed")
}
defaultLoadNamed(nil, nil)
defer func() {
if e := recover(); e != "loadNamed" {
t.Fatal("TestGetUnderlying failed")
}
}()
named := types.NewNamed(types.NewTypeName(0, nil, "foo", nil), nil, nil)
cb.getUnderlying(named)
}
func TestGetUnderlying2(t *testing.T) {
var pkg = new(Package)
var cb = &pkg.cb
cb.pkg = pkg
cb.loadNamed = func(at *Package, t *types.Named) {
panic("loadNamed")
}
defaultLoadNamed(nil, nil)
defer func() {
if e := recover(); e != "loadNamed" {
t.Fatal("TestGetUnderlying2 failed")
}
}()
named := types.NewNamed(types.NewTypeName(0, nil, "foo", nil), nil, nil)
getUnderlying(pkg, named)
}
func TestWriteFile(t *testing.T) {
pkg := NewPackage("foo", "foo", gblConf)
if WriteFile("/", pkg, "") == nil {
t.Fatal("WriteFile: no error?")
}
pkg.files[""] = &File{decls: []ast.Decl{
&ast.GenDecl{Specs: []ast.Spec{
&ast.ValueSpec{Type: &ast.Ident{}},
}},
nil,
}}
defer func() {
if e := recover(); e == nil {
t.Fatal("WriteFile: no error?")
}
}()
WriteFile("_unknown.go", pkg, "")
}
func TestToFields(t *testing.T) {
pkg := new(Package)
pkg.Types = types.NewPackage("", "foo")
typ := types.NewNamed(types.NewTypeName(token.NoPos, pkg.Types, "bar", nil), types.Typ[types.Int], nil)
flds := []*types.Var{
types.NewField(token.NoPos, pkg.Types, "bar", typ, true),
}
struc := types.NewStruct(flds, []string{"`bar`"})
out := toFields(pkg, struc)
if !(len(out) == 1 && out[0].Names == nil) {
t.Fatal("TestToFields failed:", out)
}
}
func TestToVariadic(t *testing.T) {
defer func() {
if e := recover(); e == nil {
t.Fatal("TestToVariadic: no error?")
}
}()
toVariadic(&ast.Field{Type: &ast.Ident{Name: "int"}})
}
func TestToType(t *testing.T) {
pkg := NewPackage("", "foo", gblConf)
cf := NewCSignature(nil, nil, false)
if !IsCSignature(cf) {
t.Fatal("IsCSignature failed: not c function?")
}
if v := typString(pkg, cf); v != "func()" {
t.Fatal("toType failed:", v)
}
toType(pkg, &unboundType{tBound: tyInt})
defer func() {
if e := recover(); e == nil {
t.Fatal("TestToType: no error?")
}
}()
toType(pkg, &unboundType{})
}
func typString(pkg *Package, t types.Type) string {
v := toType(pkg, t)
var b bytes.Buffer
err := format.Node(&b, pkg.Fset, v)
if err != nil {
panic(err)
}
return b.String()
}
func TestMethodAutoProperty(t *testing.T) {
pkg := types.NewPackage("", "")
typs := []types.Type{
tyInt,
sigFuncEx(nil, nil, &TyOverloadFunc{}),
sigFuncEx(nil, nil, &TyTemplateRecvMethod{types.NewParam(0, nil, "", tyInt)}),
}
for _, typ := range typs {
if methodHasAutoProperty(typ, 0) {
t.Fatal("TestMethodAutoProperty:", typ)
}
if HasAutoProperty(typ) {
t.Fatal("HasAutoProperty:", typ)
}
}
fnt := types.NewSignatureType(nil, nil, nil, nil, nil, false)
fn := types.NewFunc(0, pkg, "foo", fnt)
sig := sigFuncEx(nil, nil, &TyOverloadFunc{Funcs: []types.Object{fn}})
if !HasAutoProperty(sig) {
t.Fatal("HasAutoProperty:", sig)
}
}
func TestCheckSigFuncExObjects(t *testing.T) {
pkg := types.NewPackage("", "")
objs := []types.Object{
types.NewFunc(0, pkg, "foo", types.NewSignatureType(nil, nil, nil, nil, nil, false)),
types.NewFunc(0, pkg, "bar", types.NewSignatureType(nil, nil, nil, nil, nil, false)),
}
named := types.NewNamed(types.NewTypeName(0, pkg, "named", nil), types.NewSignatureType(nil, nil, nil, nil, nil, false), nil)
fn := types.NewFunc(0, pkg, "fn", sigFuncEx(nil, nil, &TyOverloadFunc{objs}))
tests := []struct {
name string
sig *types.Signature
count int
}{
{"TyOverloadFunc", sigFuncEx(nil, nil, &TyOverloadFunc{objs}), 2},
{"TyOverloadMethod", sigFuncEx(nil, nil, &TyOverloadMethod{objs}), 2},
{"TyTemplateRecvMethod", sigFuncEx(nil, nil, &TyTemplateRecvMethod{types.NewParam(0, nil, "", tyInt)}), 1},
{"TyTemplateRecvMethod", sigFuncEx(nil, nil, &TyTemplateRecvMethod{fn}), 2},
{"TyOverloadNamed", sigFuncEx(nil, nil, &TyOverloadNamed{Types: []*types.Named{named}}), 1},
}
for n, test := range tests {
typ, objs := CheckSigFuncExObjects(test.sig)
if typ == nil || len(objs) != test.count {
t.Fatalf("CheckSigFuncExObjects error: %v %v", n, test.name)
}
}
}
func TestHasAutoProperty(t *testing.T) {
if HasAutoProperty(nil) {
t.Fatal("nil has autoprop?")
}
if !HasAutoProperty(types.NewSignatureType(nil, nil, nil, nil, nil, false)) {
t.Fatal("func() has not autoprop?")
}
}
func TestTypeEx(t *testing.T) {
subst := &TySubst{}
bfReft := &bfRefType{typ: tyInt}
if typ, ok := DerefType(bfReft); !ok || typ != tyInt {
t.Fatal("TestDerefType failed")
}
pkg := NewPackage("example.com/foo", "foo", gblConf)
tyInt := types.Typ[types.Int]
typs := []types.Type{
&refType{},
subst,
bfReft,
&unboundType{},
&unboundMapElemType{},
&TyOverloadFunc{},
&TyOverloadMethod{},
&TyTemplateRecvMethod{},
&TyInstruction{},
&TyOverloadNamed{Obj: types.NewTypeName(0, pkg.Types, "bar", tyInt)},
&TypeType{},
&tyTypeAsParams{},
&unboundFuncParam{},
&unboundProxyParam{},
&TemplateParamType{},
&TemplateSignature{},
}
if v := bfReft.String(); v != "bfRefType{typ: int:0 off: 0}" {
t.Fatal("bfRefType.String:", v)
}
if v := subst.String(); v != "substType{real: <nil>}" {
t.Fatal("substType.String:", v)
}
for _, typ := range typs {
func() {
log.Println("type:", typ.String())
if fex, ok := typ.(TyFuncEx); ok {
fex.funcEx()
}
if fex, ok := typ.(TyTypeEx); ok {
fex.typeEx()
}
if fex, ok := typ.(iSubstType); ok {
fex.Obj()
}
if fex, ok := typ.(OverloadType); ok {
fex.Len()
func() {
defer func() {
if e := recover(); e == nil {
t.Fatal("iOverloadType.At: no error?")
}
}()
fex.At(0)
}()
}
typ.Underlying()
}()
}
bte := &boundTypeError{tyInt, TyByte}
if bte.Error() != "boundType int => byte failed" {
t.Fatal("boundTypeError:", bte)
}
ut := &unboundType{tBound: tyInt}
defer func() {
if e := recover(); e == nil {
t.Fatal("unboundType.boundTo: no error?")
}
}()
ut.boundTo(pkg, TyByte)
}
func TestIsNumeric(t *testing.T) {
var cb CodeBuilder
if isNumeric(&cb, nil) {
t.Fatal("TestIsNumeric: nil isNumeric?")
}
pkg := types.NewPackage("", "foo")
typ := types.NewNamed(types.NewTypeName(token.NoPos, pkg, "MyInt", nil), types.Typ[types.Int], nil)
if !isNumeric(&cb, typ) {
t.Fatal("TestIsNumeric: MyInt not isNumeric?")
}
}
func TestStructFieldType(t *testing.T) {
var pkg = types.NewPackage("", "foo")
var cb CodeBuilder
subFlds := []*types.Var{
types.NewField(token.NoPos, pkg, "val", types.Typ[types.Int], false),
}
subStruc := types.NewStruct(subFlds, nil)
bar := types.NewNamed(types.NewTypeName(token.NoPos, pkg, "Bar", nil), subStruc, nil)
flds := []*types.Var{
types.NewField(token.NoPos, pkg, "Bar", bar, true),
}
struc := types.NewStruct(flds, nil)
cb.Val(nil)
if !cb.fieldRef(nil, struc, "val", nil) {
t.Fatal("structFieldType failed")
}
}
func TestStructFieldType2(t *testing.T) {
var pkg = types.NewPackage("", "foo")
var cb CodeBuilder
subFlds := []*types.Var{
types.NewField(token.NoPos, pkg, "val", types.Typ[types.Int], false),
}
subStruc := types.NewStruct(subFlds, nil)
bar := types.NewNamed(types.NewTypeName(token.NoPos, pkg, "Bar", nil), subStruc, nil)
flds := []*types.Var{
types.NewField(token.NoPos, pkg, "Bar", types.NewPointer(bar), true),
}
struc := types.NewStruct(flds, nil)
cb.Val(nil)
if !cb.fieldRef(nil, struc, "val", nil) {
t.Fatal("structFieldType failed")
}
}
func TestVarDeclEnd(t *testing.T) {
var decl VarDecl
defer func() {
if e := recover(); e == nil {
t.Fatal("TestVarDeclEnd failed: no error?")
}
}()
decl.End(nil, nil)
}
func TestCheckParenExpr(t *testing.T) {
x := checkParenExpr(&ast.CompositeLit{})
if _, ok := x.(*ast.ParenExpr); !ok {
t.Fatal("TestCheckParenExpr failed:", x)
}
x = checkParenExpr(&ast.SelectorExpr{X: &ast.CompositeLit{}, Sel: ast.NewIdent("sel")})
if _, ok := x.(*ast.SelectorExpr).X.(*ast.ParenExpr); !ok {
t.Fatal("TestCheckParenExpr failed:", x)
}
}
func TestNoFuncName(t *testing.T) {
var pkg Package
defer func() {
if e := recover(); e == nil || e.(string) != "no func name" {
t.Fatal("TestNoFuncName failed:", e)
}
}()
pkg.NewFuncWith(0, "", nil, nil)
}
func TestGetIdxValTypes(t *testing.T) {
pkg := NewPackage("", "foo", gblConf)
cb := pkg.CB()
intArr := types.NewArray(types.Typ[types.Int], 10)
typ := types.NewNamed(types.NewTypeName(token.NoPos, pkg.Types, "intArr", nil), intArr, nil)
kv, allowTwoValue := cb.getIdxValTypes(typ, false, nil)
if allowTwoValue || kv[0] != types.Typ[types.Int] || kv[1] != types.Typ[types.Int] {
t.Fatal("TestGetIdxValTypes failed:", kv, allowTwoValue)
}
}
func TestGetIdxValTypes2(t *testing.T) {
pkg := NewPackage("", "foo", gblConf)
cb := pkg.CB()
intArr := types.NewArray(types.Typ[types.Int], 10)
typ := types.NewNamed(types.NewTypeName(token.NoPos, pkg.Types, "intArr", nil), intArr, nil)
kv, allowTwoValue := cb.getIdxValTypes(types.NewPointer(typ), false, nil)
if allowTwoValue || kv[0] != types.Typ[types.Int] || kv[1] != types.Typ[types.Int] {
t.Fatal("TestGetIdxValTypes2 failed:", kv, allowTwoValue)
}
}
func TestGetStruct(t *testing.T) {
if getStruct(nil, types.NewPointer(tyInt)) != nil {
t.Fatal("getStruct failed: not nil?")
}
}
func TestGetElemType(t *testing.T) {
cval := constant.MakeFromLiteral("1.1e5", token.FLOAT, 0)
arg := types.Typ[types.UntypedFloat]
typ := getElemTypeIf(arg, &internal.Elem{CVal: cval, Type: arg})
if typ != types.Typ[types.UntypedInt] {
t.Fatal("getElemTypeIf failed")
}
typ = getElemType(&internal.Elem{CVal: cval, Type: arg})
if typ != types.Typ[types.UntypedInt] {
t.Fatal("getElemType failed")
}
}
func getElemType(arg *internal.Elem) types.Type {
t := arg.Type
if arg.CVal != nil && t == types.Typ[types.UntypedFloat] {
if v, ok := constant.Val(arg.CVal).(*big.Rat); ok && v.IsInt() {
return types.Typ[types.UntypedInt]
}