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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import "go/ast"
func init() {
addTestCases(importTests, nil)
}
var importTests = []testCase{
{
Name: "import.0",
Fn: addImportFn("os"),
In: `package main
import (
"os"
)
`,
Out: `package main
import (
"os"
)
`,
},
{
Name: "import.1",
Fn: addImportFn("os"),
In: `package main
`,
Out: `package main
import "os"
`,
},
{
Name: "import.2",
Fn: addImportFn("os"),
In: `package main
// Comment
import "C"
`,
Out: `package main
// Comment
import "C"
import "os"
`,
},
{
Name: "import.3",
Fn: addImportFn("os"),
In: `package main
// Comment
import "C"
import (
"io"
"utf8"
)
`,
Out: `package main
// Comment
import "C"
import (
"io"
"os"
"utf8"
)
`,
},
{
Name: "import.4",
Fn: deleteImportFn("os"),
In: `package main
import (
"os"
)
`,
Out: `package main
`,
},
{
Name: "import.5",
Fn: deleteImportFn("os"),
In: `package main
// Comment
import "C"
import "os"
`,
Out: `package main
// Comment
import "C"
`,
},
{
Name: "import.6",
Fn: deleteImportFn("os"),
In: `package main
// Comment
import "C"
import (
"io"
"os"
"utf8"
)
`,
Out: `package main
// Comment
import "C"
import (
"io"
"utf8"
)
`,
},
{
Name: "import.7",
Fn: deleteImportFn("io"),
In: `package main
import (
"io" // a
"os" // b
"utf8" // c
)
`,
Out: `package main
import (
// a
"os" // b
"utf8" // c
)
`,
},
{
Name: "import.8",
Fn: deleteImportFn("os"),
In: `package main
import (
"io" // a
"os" // b
"utf8" // c
)
`,
Out: `package main
import (
"io" // a
// b
"utf8" // c
)
`,
},
{
Name: "import.9",
Fn: deleteImportFn("utf8"),
In: `package main
import (
"io" // a
"os" // b
"utf8" // c
)
`,
Out: `package main
import (
"io" // a
"os" // b
// c
)
`,
},
{
Name: "import.10",
Fn: deleteImportFn("io"),
In: `package main
import (
"io"
"os"
"utf8"
)
`,
Out: `package main
import (
"os"
"utf8"
)
`,
},
{
Name: "import.11",
Fn: deleteImportFn("os"),
In: `package main
import (
"io"
"os"
"utf8"
)
`,
Out: `package main
import (
"io"
"utf8"
)
`,
},
{
Name: "import.12",
Fn: deleteImportFn("utf8"),
In: `package main
import (
"io"
"os"
"utf8"
)
`,
Out: `package main
import (
"io"
"os"
)
`,
},
{
Name: "import.13",
Fn: rewriteImportFn("utf8", "encoding/utf8"),
In: `package main
import (
"io"
"os"
"utf8" // thanks ken
)
`,
Out: `package main
import (
"encoding/utf8" // thanks ken
"io"
"os"
)
`,
},
{
Name: "import.14",
Fn: rewriteImportFn("asn1", "encoding/asn1"),
In: `package main
import (
"asn1"
"crypto"
"crypto/rsa"
_ "crypto/sha1"
"crypto/x509"
"crypto/x509/pkix"
"time"
)
var x = 1
`,
Out: `package main
import (
"crypto"
"crypto/rsa"
_ "crypto/sha1"
"crypto/x509"
"crypto/x509/pkix"
"encoding/asn1"
"time"
)
var x = 1
`,
},
{
Name: "import.15",
Fn: rewriteImportFn("url", "net/url"),
In: `package main
import (
"bufio"
"net"
"path"
"url"
)
var x = 1 // comment on x, not on url
`,
Out: `package main
import (
"bufio"
"net"
"net/url"
"path"
)
var x = 1 // comment on x, not on url
`,
},
{
Name: "import.16",
Fn: rewriteImportFn("http", "net/http", "template", "text/template"),
In: `package main
import (
"flag"
"http"
"log"
"template"
)
var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18
`,
Out: `package main
import (
"flag"
"log"
"net/http"
"text/template"
)
var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18
`,
},
{
Name: "import.17",
Fn: addImportFn("x/y/z", "x/a/c"),
In: `package main
// Comment
import "C"
import (
"a"
"b"
"x/w"
"d/f"
)
`,
Out: `package main
// Comment
import "C"
import (
"a"
"b"
"x/a/c"
"x/w"
"x/y/z"
"d/f"
)
`,
},
{
Name: "import.18",
Fn: addDelImportFn("e", "o"),
In: `package main
import (
"f"
"o"
"z"
)
`,
Out: `package main
import (
"e"
"f"
"z"
)
`,
},
}
func addImportFn(path ...string) func(*ast.File) bool {
return func(f *ast.File) bool {
fixed := false
for _, p := range path {
if !imports(f, p) {
addImport(f, p)
fixed = true
}
}
return fixed
}
}
func deleteImportFn(path string) func(*ast.File) bool {
return func(f *ast.File) bool {
if imports(f, path) {
deleteImport(f, path)
return true
}
return false
}
}
func addDelImportFn(p1 string, p2 string) func(*ast.File) bool {
return func(f *ast.File) bool {
fixed := false
if !imports(f, p1) {
addImport(f, p1)
fixed = true
}
if imports(f, p2) {
deleteImport(f, p2)
fixed = true
}
return fixed
}
}
func rewriteImportFn(oldnew ...string) func(*ast.File) bool {
return func(f *ast.File) bool {
fixed := false
for i := 0; i < len(oldnew); i += 2 {
if imports(f, oldnew[i]) {
rewriteImport(f, oldnew[i], oldnew[i+1])
fixed = true
}
}
return fixed
}
}