mirror of https://github.com/k3s-io/k3s
vendor golint
Sen Lu
parent
6a61a9af40
commit
242ce12de7
|
|
@ -11,6 +11,7 @@
|
|||
"github.com/bazelbuild/bazel-gazelle/cmd/gazelle",
|
||||
"github.com/kubernetes/repo-infra/kazel",
|
||||
"k8s.io/kube-openapi/cmd/openapi-gen",
|
||||
"golang.org/x/lint/golint",
|
||||
"./..."
|
||||
],
|
||||
"Deps": [
|
||||
|
|
@ -3452,6 +3453,14 @@
|
|||
"ImportPath": "golang.org/x/crypto/ssh/terminal",
|
||||
"Rev": "de0752318171da717af4ce24d0a2e8626afaeb11"
|
||||
},
|
||||
{
|
||||
"ImportPath": "golang.org/x/lint",
|
||||
"Rev": "8f45f776aaf18cebc8d65861cc70c33c60471952"
|
||||
},
|
||||
{
|
||||
"ImportPath": "golang.org/x/lint/golint",
|
||||
"Rev": "8f45f776aaf18cebc8d65861cc70c33c60471952"
|
||||
},
|
||||
{
|
||||
"ImportPath": "golang.org/x/net/context",
|
||||
"Rev": "0ed95abb35c445290478a5348a7b38bb154135fd"
|
||||
|
|
@ -3616,6 +3625,14 @@
|
|||
"ImportPath": "golang.org/x/tools/go/ast/astutil",
|
||||
"Rev": "2382e3994d48b1d22acc2c86bcad0a2aff028e32"
|
||||
},
|
||||
{
|
||||
"ImportPath": "golang.org/x/tools/go/gcexportdata",
|
||||
"Rev": "2382e3994d48b1d22acc2c86bcad0a2aff028e32"
|
||||
},
|
||||
{
|
||||
"ImportPath": "golang.org/x/tools/go/gcimporter15",
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||||
"Rev": "2382e3994d48b1d22acc2c86bcad0a2aff028e32"
|
||||
},
|
||||
{
|
||||
"ImportPath": "golang.org/x/tools/go/vcs",
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||||
"Rev": "2382e3994d48b1d22acc2c86bcad0a2aff028e32"
|
||||
|
|
|
|||
|
|
@ -99551,6 +99551,76 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
================================================================================
|
||||
|
||||
|
||||
================================================================================
|
||||
= vendor/golang.org/x/lint licensed under: =
|
||||
|
||||
Copyright (c) 2013 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
= vendor/golang.org/x/lint/LICENSE 4c728948788b1a02f33ae4e906546eef
|
||||
================================================================================
|
||||
|
||||
|
||||
================================================================================
|
||||
= vendor/golang.org/x/lint/golint licensed under: =
|
||||
|
||||
Copyright (c) 2013 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
= vendor/golang.org/x/lint/LICENSE 4c728948788b1a02f33ae4e906546eef
|
||||
================================================================================
|
||||
|
||||
|
||||
================================================================================
|
||||
= vendor/golang.org/x/net/context licensed under: =
|
||||
|
||||
|
|
@ -100986,6 +101056,76 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
================================================================================
|
||||
|
||||
|
||||
================================================================================
|
||||
= vendor/golang.org/x/tools/go/gcexportdata licensed under: =
|
||||
|
||||
Copyright (c) 2009 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
= vendor/golang.org/x/tools/LICENSE 5d4950ecb7b26d2c5e4e7b4e0dd74707
|
||||
================================================================================
|
||||
|
||||
|
||||
================================================================================
|
||||
= vendor/golang.org/x/tools/go/gcimporter15 licensed under: =
|
||||
|
||||
Copyright (c) 2009 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
= vendor/golang.org/x/tools/LICENSE 5d4950ecb7b26d2c5e4e7b4e0dd74707
|
||||
================================================================================
|
||||
|
||||
|
||||
================================================================================
|
||||
= vendor/golang.org/x/tools/go/vcs licensed under: =
|
||||
|
||||
|
|
|
|||
|
|
@ -63,6 +63,7 @@ REQUIRED_BINS=(
|
|||
"github.com/bazelbuild/bazel-gazelle/cmd/gazelle"
|
||||
"github.com/kubernetes/repo-infra/kazel"
|
||||
"k8s.io/kube-openapi/cmd/openapi-gen"
|
||||
"golang.org/x/lint/golint"
|
||||
"./..."
|
||||
)
|
||||
|
||||
|
|
|
|||
|
|
@ -390,6 +390,7 @@ filegroup(
|
|||
"//vendor/golang.org/x/crypto/poly1305:all-srcs",
|
||||
"//vendor/golang.org/x/crypto/salsa20/salsa:all-srcs",
|
||||
"//vendor/golang.org/x/crypto/ssh:all-srcs",
|
||||
"//vendor/golang.org/x/lint:all-srcs",
|
||||
"//vendor/golang.org/x/net/context:all-srcs",
|
||||
"//vendor/golang.org/x/net/html:all-srcs",
|
||||
"//vendor/golang.org/x/net/http2:all-srcs",
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||||
|
|
@ -417,6 +418,8 @@ filegroup(
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|||
"//vendor/golang.org/x/tools/benchmark/parse:all-srcs",
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||||
"//vendor/golang.org/x/tools/container/intsets:all-srcs",
|
||||
"//vendor/golang.org/x/tools/go/ast/astutil:all-srcs",
|
||||
"//vendor/golang.org/x/tools/go/gcexportdata:all-srcs",
|
||||
"//vendor/golang.org/x/tools/go/gcimporter15:all-srcs",
|
||||
"//vendor/golang.org/x/tools/go/vcs:all-srcs",
|
||||
"//vendor/golang.org/x/tools/imports:all-srcs",
|
||||
"//vendor/gonum.org/v1/gonum/blas:all-srcs",
|
||||
|
|
|
|||
|
|
@ -40,7 +40,6 @@ filegroup(
|
|||
srcs = [
|
||||
":package-srcs",
|
||||
"//vendor/github.com/GoogleCloudPlatform/k8s-cloud-provider/pkg/cloud/filter:all-srcs",
|
||||
"//vendor/github.com/GoogleCloudPlatform/k8s-cloud-provider/pkg/cloud/gen:all-srcs",
|
||||
"//vendor/github.com/GoogleCloudPlatform/k8s-cloud-provider/pkg/cloud/meta:all-srcs",
|
||||
"//vendor/github.com/GoogleCloudPlatform/k8s-cloud-provider/pkg/cloud/mock:all-srcs",
|
||||
],
|
||||
|
|
|
|||
|
|
@ -1,13 +0,0 @@
|
|||
filegroup(
|
||||
name = "package-srcs",
|
||||
srcs = glob(["**"]),
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "all-srcs",
|
||||
srcs = [":package-srcs"],
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
sudo: false
|
||||
language: go
|
||||
go:
|
||||
- 1.10.x
|
||||
- 1.11.x
|
||||
- master
|
||||
|
||||
go_import_path: golang.org/x/lint
|
||||
|
||||
install:
|
||||
- go get -t -v ./...
|
||||
|
||||
script:
|
||||
- go test -v -race ./...
|
||||
|
||||
matrix:
|
||||
allow_failures:
|
||||
- go: master
|
||||
fast_finish: true
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
load("@io_bazel_rules_go//go:def.bzl", "go_library")
|
||||
|
||||
go_library(
|
||||
name = "go_default_library",
|
||||
srcs = ["lint.go"],
|
||||
importmap = "k8s.io/kubernetes/vendor/golang.org/x/lint",
|
||||
importpath = "golang.org/x/lint",
|
||||
visibility = ["//visibility:public"],
|
||||
deps = [
|
||||
"//vendor/golang.org/x/tools/go/ast/astutil:go_default_library",
|
||||
"//vendor/golang.org/x/tools/go/gcexportdata:go_default_library",
|
||||
],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "package-srcs",
|
||||
srcs = glob(["**"]),
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "all-srcs",
|
||||
srcs = [
|
||||
":package-srcs",
|
||||
"//vendor/golang.org/x/lint/golint:all-srcs",
|
||||
],
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
# Contributing to Golint
|
||||
|
||||
## Before filing an issue:
|
||||
|
||||
### Are you having trouble building golint?
|
||||
|
||||
Check you have the latest version of its dependencies. Run
|
||||
```
|
||||
go get -u golang.org/x/lint/golint
|
||||
```
|
||||
If you still have problems, consider searching for existing issues before filing a new issue.
|
||||
|
||||
## Before sending a pull request:
|
||||
|
||||
Have you understood the purpose of golint? Make sure to carefully read `README`.
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
Copyright (c) 2013 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
|
@ -0,0 +1,86 @@
|
|||
Golint is a linter for Go source code.
|
||||
|
||||
[](https://travis-ci.org/golang/lint)
|
||||
|
||||
## Installation
|
||||
|
||||
Golint requires a
|
||||
[supported release of Go](https://golang.org/doc/devel/release.html#policy).
|
||||
|
||||
go get -u golang.org/x/lint/golint
|
||||
|
||||
## Usage
|
||||
|
||||
Invoke `golint` with one or more filenames, directories, or packages named
|
||||
by its import path. Golint uses the same
|
||||
[import path syntax](https://golang.org/cmd/go/#hdr-Import_path_syntax) as
|
||||
the `go` command and therefore
|
||||
also supports relative import paths like `./...`. Additionally the `...`
|
||||
wildcard can be used as suffix on relative and absolute file paths to recurse
|
||||
into them.
|
||||
|
||||
The output of this tool is a list of suggestions in Vim quickfix format,
|
||||
which is accepted by lots of different editors.
|
||||
|
||||
## Purpose
|
||||
|
||||
Golint differs from gofmt. Gofmt reformats Go source code, whereas
|
||||
golint prints out style mistakes.
|
||||
|
||||
Golint differs from govet. Govet is concerned with correctness, whereas
|
||||
golint is concerned with coding style. Golint is in use at Google, and it
|
||||
seeks to match the accepted style of the open source Go project.
|
||||
|
||||
The suggestions made by golint are exactly that: suggestions.
|
||||
Golint is not perfect, and has both false positives and false negatives.
|
||||
Do not treat its output as a gold standard. We will not be adding pragmas
|
||||
or other knobs to suppress specific warnings, so do not expect or require
|
||||
code to be completely "lint-free".
|
||||
In short, this tool is not, and will never be, trustworthy enough for its
|
||||
suggestions to be enforced automatically, for example as part of a build process.
|
||||
Golint makes suggestions for many of the mechanically checkable items listed in
|
||||
[Effective Go](https://golang.org/doc/effective_go.html) and the
|
||||
[CodeReviewComments wiki page](https://golang.org/wiki/CodeReviewComments).
|
||||
|
||||
## Scope
|
||||
|
||||
Golint is meant to carry out the stylistic conventions put forth in
|
||||
[Effective Go](https://golang.org/doc/effective_go.html) and
|
||||
[CodeReviewComments](https://golang.org/wiki/CodeReviewComments).
|
||||
Changes that are not aligned with those documents will not be considered.
|
||||
|
||||
## Contributions
|
||||
|
||||
Contributions to this project are welcome provided they are [in scope](#scope),
|
||||
though please send mail before starting work on anything major.
|
||||
Contributors retain their copyright, so we need you to fill out
|
||||
[a short form](https://developers.google.com/open-source/cla/individual)
|
||||
before we can accept your contribution.
|
||||
|
||||
## Vim
|
||||
|
||||
Add this to your ~/.vimrc:
|
||||
|
||||
set rtp+=$GOPATH/src/golang.org/x/lint/misc/vim
|
||||
|
||||
If you have multiple entries in your GOPATH, replace `$GOPATH` with the right value.
|
||||
|
||||
Running `:Lint` will run golint on the current file and populate the quickfix list.
|
||||
|
||||
Optionally, add this to your `~/.vimrc` to automatically run `golint` on `:w`
|
||||
|
||||
autocmd BufWritePost,FileWritePost *.go execute 'Lint' | cwindow
|
||||
|
||||
|
||||
## Emacs
|
||||
|
||||
Add this to your `.emacs` file:
|
||||
|
||||
(add-to-list 'load-path (concat (getenv "GOPATH") "/src/github.com/golang/lint/misc/emacs"))
|
||||
(require 'golint)
|
||||
|
||||
If you have multiple entries in your GOPATH, replace `$GOPATH` with the right value.
|
||||
|
||||
Running M-x golint will run golint on the current file.
|
||||
|
||||
For more usage, see [Compilation-Mode](http://www.gnu.org/software/emacs/manual/html_node/emacs/Compilation-Mode.html).
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
|
||||
|
||||
go_library(
|
||||
name = "go_default_library",
|
||||
srcs = [
|
||||
"golint.go",
|
||||
"import.go",
|
||||
"importcomment.go",
|
||||
],
|
||||
importmap = "k8s.io/kubernetes/vendor/golang.org/x/lint/golint",
|
||||
importpath = "golang.org/x/lint/golint",
|
||||
visibility = ["//visibility:private"],
|
||||
deps = ["//vendor/golang.org/x/lint:go_default_library"],
|
||||
)
|
||||
|
||||
go_binary(
|
||||
name = "golint",
|
||||
embed = [":go_default_library"],
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "package-srcs",
|
||||
srcs = glob(["**"]),
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "all-srcs",
|
||||
srcs = [":package-srcs"],
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
|
@ -0,0 +1,159 @@
|
|||
// Copyright (c) 2013 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 or at
|
||||
// https://developers.google.com/open-source/licenses/bsd.
|
||||
|
||||
// golint lints the Go source files named on its command line.
|
||||
package main
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"go/build"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
|
||||
"golang.org/x/lint"
|
||||
)
|
||||
|
||||
var (
|
||||
minConfidence = flag.Float64("min_confidence", 0.8, "minimum confidence of a problem to print it")
|
||||
setExitStatus = flag.Bool("set_exit_status", false, "set exit status to 1 if any issues are found")
|
||||
suggestions int
|
||||
)
|
||||
|
||||
func usage() {
|
||||
fmt.Fprintf(os.Stderr, "Usage of %s:\n", os.Args[0])
|
||||
fmt.Fprintf(os.Stderr, "\tgolint [flags] # runs on package in current directory\n")
|
||||
fmt.Fprintf(os.Stderr, "\tgolint [flags] [packages]\n")
|
||||
fmt.Fprintf(os.Stderr, "\tgolint [flags] [directories] # where a '/...' suffix includes all sub-directories\n")
|
||||
fmt.Fprintf(os.Stderr, "\tgolint [flags] [files] # all must belong to a single package\n")
|
||||
fmt.Fprintf(os.Stderr, "Flags:\n")
|
||||
flag.PrintDefaults()
|
||||
}
|
||||
|
||||
func main() {
|
||||
flag.Usage = usage
|
||||
flag.Parse()
|
||||
|
||||
if flag.NArg() == 0 {
|
||||
lintDir(".")
|
||||
} else {
|
||||
// dirsRun, filesRun, and pkgsRun indicate whether golint is applied to
|
||||
// directory, file or package targets. The distinction affects which
|
||||
// checks are run. It is no valid to mix target types.
|
||||
var dirsRun, filesRun, pkgsRun int
|
||||
var args []string
|
||||
for _, arg := range flag.Args() {
|
||||
if strings.HasSuffix(arg, "/...") && isDir(arg[:len(arg)-len("/...")]) {
|
||||
dirsRun = 1
|
||||
for _, dirname := range allPackagesInFS(arg) {
|
||||
args = append(args, dirname)
|
||||
}
|
||||
} else if isDir(arg) {
|
||||
dirsRun = 1
|
||||
args = append(args, arg)
|
||||
} else if exists(arg) {
|
||||
filesRun = 1
|
||||
args = append(args, arg)
|
||||
} else {
|
||||
pkgsRun = 1
|
||||
args = append(args, arg)
|
||||
}
|
||||
}
|
||||
|
||||
if dirsRun+filesRun+pkgsRun != 1 {
|
||||
usage()
|
||||
os.Exit(2)
|
||||
}
|
||||
switch {
|
||||
case dirsRun == 1:
|
||||
for _, dir := range args {
|
||||
lintDir(dir)
|
||||
}
|
||||
case filesRun == 1:
|
||||
lintFiles(args...)
|
||||
case pkgsRun == 1:
|
||||
for _, pkg := range importPaths(args) {
|
||||
lintPackage(pkg)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if *setExitStatus && suggestions > 0 {
|
||||
fmt.Fprintf(os.Stderr, "Found %d lint suggestions; failing.\n", suggestions)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
func isDir(filename string) bool {
|
||||
fi, err := os.Stat(filename)
|
||||
return err == nil && fi.IsDir()
|
||||
}
|
||||
|
||||
func exists(filename string) bool {
|
||||
_, err := os.Stat(filename)
|
||||
return err == nil
|
||||
}
|
||||
|
||||
func lintFiles(filenames ...string) {
|
||||
files := make(map[string][]byte)
|
||||
for _, filename := range filenames {
|
||||
src, err := ioutil.ReadFile(filename)
|
||||
if err != nil {
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
continue
|
||||
}
|
||||
files[filename] = src
|
||||
}
|
||||
|
||||
l := new(lint.Linter)
|
||||
ps, err := l.LintFiles(files)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "%v\n", err)
|
||||
return
|
||||
}
|
||||
for _, p := range ps {
|
||||
if p.Confidence >= *minConfidence {
|
||||
fmt.Printf("%v: %s\n", p.Position, p.Text)
|
||||
suggestions++
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func lintDir(dirname string) {
|
||||
pkg, err := build.ImportDir(dirname, 0)
|
||||
lintImportedPackage(pkg, err)
|
||||
}
|
||||
|
||||
func lintPackage(pkgname string) {
|
||||
pkg, err := build.Import(pkgname, ".", 0)
|
||||
lintImportedPackage(pkg, err)
|
||||
}
|
||||
|
||||
func lintImportedPackage(pkg *build.Package, err error) {
|
||||
if err != nil {
|
||||
if _, nogo := err.(*build.NoGoError); nogo {
|
||||
// Don't complain if the failure is due to no Go source files.
|
||||
return
|
||||
}
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
return
|
||||
}
|
||||
|
||||
var files []string
|
||||
files = append(files, pkg.GoFiles...)
|
||||
files = append(files, pkg.CgoFiles...)
|
||||
files = append(files, pkg.TestGoFiles...)
|
||||
if pkg.Dir != "." {
|
||||
for i, f := range files {
|
||||
files[i] = filepath.Join(pkg.Dir, f)
|
||||
}
|
||||
}
|
||||
// TODO(dsymonds): Do foo_test too (pkg.XTestGoFiles)
|
||||
|
||||
lintFiles(files...)
|
||||
}
|
||||
|
|
@ -0,0 +1,309 @@
|
|||
package main
|
||||
|
||||
/*
|
||||
|
||||
This file holds a direct copy of the import path matching code of
|
||||
https://github.com/golang/go/blob/master/src/cmd/go/main.go. It can be
|
||||
replaced when https://golang.org/issue/8768 is resolved.
|
||||
|
||||
It has been updated to follow upstream changes in a few ways.
|
||||
|
||||
*/
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"go/build"
|
||||
"log"
|
||||
"os"
|
||||
"path"
|
||||
"path/filepath"
|
||||
"regexp"
|
||||
"runtime"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var (
|
||||
buildContext = build.Default
|
||||
goroot = filepath.Clean(runtime.GOROOT())
|
||||
gorootSrc = filepath.Join(goroot, "src")
|
||||
)
|
||||
|
||||
// importPathsNoDotExpansion returns the import paths to use for the given
|
||||
// command line, but it does no ... expansion.
|
||||
func importPathsNoDotExpansion(args []string) []string {
|
||||
if len(args) == 0 {
|
||||
return []string{"."}
|
||||
}
|
||||
var out []string
|
||||
for _, a := range args {
|
||||
// Arguments are supposed to be import paths, but
|
||||
// as a courtesy to Windows developers, rewrite \ to /
|
||||
// in command-line arguments. Handles .\... and so on.
|
||||
if filepath.Separator == '\\' {
|
||||
a = strings.Replace(a, `\`, `/`, -1)
|
||||
}
|
||||
|
||||
// Put argument in canonical form, but preserve leading ./.
|
||||
if strings.HasPrefix(a, "./") {
|
||||
a = "./" + path.Clean(a)
|
||||
if a == "./." {
|
||||
a = "."
|
||||
}
|
||||
} else {
|
||||
a = path.Clean(a)
|
||||
}
|
||||
if a == "all" || a == "std" {
|
||||
out = append(out, allPackages(a)...)
|
||||
continue
|
||||
}
|
||||
out = append(out, a)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// importPaths returns the import paths to use for the given command line.
|
||||
func importPaths(args []string) []string {
|
||||
args = importPathsNoDotExpansion(args)
|
||||
var out []string
|
||||
for _, a := range args {
|
||||
if strings.Contains(a, "...") {
|
||||
if build.IsLocalImport(a) {
|
||||
out = append(out, allPackagesInFS(a)...)
|
||||
} else {
|
||||
out = append(out, allPackages(a)...)
|
||||
}
|
||||
continue
|
||||
}
|
||||
out = append(out, a)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// matchPattern(pattern)(name) reports whether
|
||||
// name matches pattern. Pattern is a limited glob
|
||||
// pattern in which '...' means 'any string' and there
|
||||
// is no other special syntax.
|
||||
func matchPattern(pattern string) func(name string) bool {
|
||||
re := regexp.QuoteMeta(pattern)
|
||||
re = strings.Replace(re, `\.\.\.`, `.*`, -1)
|
||||
// Special case: foo/... matches foo too.
|
||||
if strings.HasSuffix(re, `/.*`) {
|
||||
re = re[:len(re)-len(`/.*`)] + `(/.*)?`
|
||||
}
|
||||
reg := regexp.MustCompile(`^` + re + `$`)
|
||||
return func(name string) bool {
|
||||
return reg.MatchString(name)
|
||||
}
|
||||
}
|
||||
|
||||
// hasPathPrefix reports whether the path s begins with the
|
||||
// elements in prefix.
|
||||
func hasPathPrefix(s, prefix string) bool {
|
||||
switch {
|
||||
default:
|
||||
return false
|
||||
case len(s) == len(prefix):
|
||||
return s == prefix
|
||||
case len(s) > len(prefix):
|
||||
if prefix != "" && prefix[len(prefix)-1] == '/' {
|
||||
return strings.HasPrefix(s, prefix)
|
||||
}
|
||||
return s[len(prefix)] == '/' && s[:len(prefix)] == prefix
|
||||
}
|
||||
}
|
||||
|
||||
// treeCanMatchPattern(pattern)(name) reports whether
|
||||
// name or children of name can possibly match pattern.
|
||||
// Pattern is the same limited glob accepted by matchPattern.
|
||||
func treeCanMatchPattern(pattern string) func(name string) bool {
|
||||
wildCard := false
|
||||
if i := strings.Index(pattern, "..."); i >= 0 {
|
||||
wildCard = true
|
||||
pattern = pattern[:i]
|
||||
}
|
||||
return func(name string) bool {
|
||||
return len(name) <= len(pattern) && hasPathPrefix(pattern, name) ||
|
||||
wildCard && strings.HasPrefix(name, pattern)
|
||||
}
|
||||
}
|
||||
|
||||
// allPackages returns all the packages that can be found
|
||||
// under the $GOPATH directories and $GOROOT matching pattern.
|
||||
// The pattern is either "all" (all packages), "std" (standard packages)
|
||||
// or a path including "...".
|
||||
func allPackages(pattern string) []string {
|
||||
pkgs := matchPackages(pattern)
|
||||
if len(pkgs) == 0 {
|
||||
fmt.Fprintf(os.Stderr, "warning: %q matched no packages\n", pattern)
|
||||
}
|
||||
return pkgs
|
||||
}
|
||||
|
||||
func matchPackages(pattern string) []string {
|
||||
match := func(string) bool { return true }
|
||||
treeCanMatch := func(string) bool { return true }
|
||||
if pattern != "all" && pattern != "std" {
|
||||
match = matchPattern(pattern)
|
||||
treeCanMatch = treeCanMatchPattern(pattern)
|
||||
}
|
||||
|
||||
have := map[string]bool{
|
||||
"builtin": true, // ignore pseudo-package that exists only for documentation
|
||||
}
|
||||
if !buildContext.CgoEnabled {
|
||||
have["runtime/cgo"] = true // ignore during walk
|
||||
}
|
||||
var pkgs []string
|
||||
|
||||
// Commands
|
||||
cmd := filepath.Join(goroot, "src/cmd") + string(filepath.Separator)
|
||||
filepath.Walk(cmd, func(path string, fi os.FileInfo, err error) error {
|
||||
if err != nil || !fi.IsDir() || path == cmd {
|
||||
return nil
|
||||
}
|
||||
name := path[len(cmd):]
|
||||
if !treeCanMatch(name) {
|
||||
return filepath.SkipDir
|
||||
}
|
||||
// Commands are all in cmd/, not in subdirectories.
|
||||
if strings.Contains(name, string(filepath.Separator)) {
|
||||
return filepath.SkipDir
|
||||
}
|
||||
|
||||
// We use, e.g., cmd/gofmt as the pseudo import path for gofmt.
|
||||
name = "cmd/" + name
|
||||
if have[name] {
|
||||
return nil
|
||||
}
|
||||
have[name] = true
|
||||
if !match(name) {
|
||||
return nil
|
||||
}
|
||||
_, err = buildContext.ImportDir(path, 0)
|
||||
if err != nil {
|
||||
if _, noGo := err.(*build.NoGoError); !noGo {
|
||||
log.Print(err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
pkgs = append(pkgs, name)
|
||||
return nil
|
||||
})
|
||||
|
||||
for _, src := range buildContext.SrcDirs() {
|
||||
if (pattern == "std" || pattern == "cmd") && src != gorootSrc {
|
||||
continue
|
||||
}
|
||||
src = filepath.Clean(src) + string(filepath.Separator)
|
||||
root := src
|
||||
if pattern == "cmd" {
|
||||
root += "cmd" + string(filepath.Separator)
|
||||
}
|
||||
filepath.Walk(root, func(path string, fi os.FileInfo, err error) error {
|
||||
if err != nil || !fi.IsDir() || path == src {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Avoid .foo, _foo, and testdata directory trees.
|
||||
_, elem := filepath.Split(path)
|
||||
if strings.HasPrefix(elem, ".") || strings.HasPrefix(elem, "_") || elem == "testdata" {
|
||||
return filepath.SkipDir
|
||||
}
|
||||
|
||||
name := filepath.ToSlash(path[len(src):])
|
||||
if pattern == "std" && (strings.Contains(name, ".") || name == "cmd") {
|
||||
// The name "std" is only the standard library.
|
||||
// If the name is cmd, it's the root of the command tree.
|
||||
return filepath.SkipDir
|
||||
}
|
||||
if !treeCanMatch(name) {
|
||||
return filepath.SkipDir
|
||||
}
|
||||
if have[name] {
|
||||
return nil
|
||||
}
|
||||
have[name] = true
|
||||
if !match(name) {
|
||||
return nil
|
||||
}
|
||||
_, err = buildContext.ImportDir(path, 0)
|
||||
if err != nil {
|
||||
if _, noGo := err.(*build.NoGoError); noGo {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
pkgs = append(pkgs, name)
|
||||
return nil
|
||||
})
|
||||
}
|
||||
return pkgs
|
||||
}
|
||||
|
||||
// allPackagesInFS is like allPackages but is passed a pattern
|
||||
// beginning ./ or ../, meaning it should scan the tree rooted
|
||||
// at the given directory. There are ... in the pattern too.
|
||||
func allPackagesInFS(pattern string) []string {
|
||||
pkgs := matchPackagesInFS(pattern)
|
||||
if len(pkgs) == 0 {
|
||||
fmt.Fprintf(os.Stderr, "warning: %q matched no packages\n", pattern)
|
||||
}
|
||||
return pkgs
|
||||
}
|
||||
|
||||
func matchPackagesInFS(pattern string) []string {
|
||||
// Find directory to begin the scan.
|
||||
// Could be smarter but this one optimization
|
||||
// is enough for now, since ... is usually at the
|
||||
// end of a path.
|
||||
i := strings.Index(pattern, "...")
|
||||
dir, _ := path.Split(pattern[:i])
|
||||
|
||||
// pattern begins with ./ or ../.
|
||||
// path.Clean will discard the ./ but not the ../.
|
||||
// We need to preserve the ./ for pattern matching
|
||||
// and in the returned import paths.
|
||||
prefix := ""
|
||||
if strings.HasPrefix(pattern, "./") {
|
||||
prefix = "./"
|
||||
}
|
||||
match := matchPattern(pattern)
|
||||
|
||||
var pkgs []string
|
||||
filepath.Walk(dir, func(path string, fi os.FileInfo, err error) error {
|
||||
if err != nil || !fi.IsDir() {
|
||||
return nil
|
||||
}
|
||||
if path == dir {
|
||||
// filepath.Walk starts at dir and recurses. For the recursive case,
|
||||
// the path is the result of filepath.Join, which calls filepath.Clean.
|
||||
// The initial case is not Cleaned, though, so we do this explicitly.
|
||||
//
|
||||
// This converts a path like "./io/" to "io". Without this step, running
|
||||
// "cd $GOROOT/src/pkg; go list ./io/..." would incorrectly skip the io
|
||||
// package, because prepending the prefix "./" to the unclean path would
|
||||
// result in "././io", and match("././io") returns false.
|
||||
path = filepath.Clean(path)
|
||||
}
|
||||
|
||||
// Avoid .foo, _foo, and testdata directory trees, but do not avoid "." or "..".
|
||||
_, elem := filepath.Split(path)
|
||||
dot := strings.HasPrefix(elem, ".") && elem != "." && elem != ".."
|
||||
if dot || strings.HasPrefix(elem, "_") || elem == "testdata" {
|
||||
return filepath.SkipDir
|
||||
}
|
||||
|
||||
name := prefix + filepath.ToSlash(path)
|
||||
if !match(name) {
|
||||
return nil
|
||||
}
|
||||
if _, err = build.ImportDir(path, 0); err != nil {
|
||||
if _, noGo := err.(*build.NoGoError); !noGo {
|
||||
log.Print(err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
pkgs = append(pkgs, name)
|
||||
return nil
|
||||
})
|
||||
return pkgs
|
||||
}
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
// Copyright (c) 2018 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 or at
|
||||
// https://developers.google.com/open-source/licenses/bsd.
|
||||
|
||||
// +build go1.12
|
||||
|
||||
// Require use of the correct import path only for Go 1.12+ users, so
|
||||
// any breakages coincide with people updating their CI configs or
|
||||
// whatnot.
|
||||
|
||||
package main
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,27 @@
|
|||
load("@io_bazel_rules_go//go:def.bzl", "go_library")
|
||||
|
||||
go_library(
|
||||
name = "go_default_library",
|
||||
srcs = [
|
||||
"gcexportdata.go",
|
||||
"importer.go",
|
||||
],
|
||||
importmap = "k8s.io/kubernetes/vendor/golang.org/x/tools/go/gcexportdata",
|
||||
importpath = "golang.org/x/tools/go/gcexportdata",
|
||||
visibility = ["//visibility:public"],
|
||||
deps = ["//vendor/golang.org/x/tools/go/gcimporter15:go_default_library"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "package-srcs",
|
||||
srcs = glob(["**"]),
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "all-srcs",
|
||||
srcs = [":package-srcs"],
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
|
@ -0,0 +1,100 @@
|
|||
// Copyright 2016 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 gcexportdata provides functions for locating, reading, and
|
||||
// writing export data files containing type information produced by the
|
||||
// gc compiler. This package supports go1.7 export data format and all
|
||||
// later versions.
|
||||
//
|
||||
// This package replaces the deprecated golang.org/x/tools/go/gcimporter15
|
||||
// package, which will be deleted in October 2017.
|
||||
//
|
||||
// Although it might seem convenient for this package to live alongside
|
||||
// go/types in the standard library, this would cause version skew
|
||||
// problems for developer tools that use it, since they must be able to
|
||||
// consume the outputs of the gc compiler both before and after a Go
|
||||
// update such as from Go 1.7 to Go 1.8. Because this package lives in
|
||||
// golang.org/x/tools, sites can update their version of this repo some
|
||||
// time before the Go 1.8 release and rebuild and redeploy their
|
||||
// developer tools, which will then be able to consume both Go 1.7 and
|
||||
// Go 1.8 export data files, so they will work before and after the
|
||||
// Go update. (See discussion at https://github.com/golang/go/issues/15651.)
|
||||
//
|
||||
package gcexportdata
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"fmt"
|
||||
"go/token"
|
||||
"go/types"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
|
||||
gcimporter "golang.org/x/tools/go/gcimporter15"
|
||||
)
|
||||
|
||||
// Find returns the name of an object (.o) or archive (.a) file
|
||||
// containing type information for the specified import path,
|
||||
// using the workspace layout conventions of go/build.
|
||||
// If no file was found, an empty filename is returned.
|
||||
//
|
||||
// A relative srcDir is interpreted relative to the current working directory.
|
||||
//
|
||||
// Find also returns the package's resolved (canonical) import path,
|
||||
// reflecting the effects of srcDir and vendoring on importPath.
|
||||
func Find(importPath string, srcDir string) (filename, path string) {
|
||||
return gcimporter.FindPkg(importPath, srcDir)
|
||||
}
|
||||
|
||||
// NewReader returns a reader for the export data section of an object
|
||||
// (.o) or archive (.a) file read from r. The new reader may provide
|
||||
// additional trailing data beyond the end of the export data.
|
||||
func NewReader(r io.Reader) (io.Reader, error) {
|
||||
buf := bufio.NewReader(r)
|
||||
_, err := gcimporter.FindExportData(buf)
|
||||
// If we ever switch to a zip-like archive format with the ToC
|
||||
// at the end, we can return the correct portion of export data,
|
||||
// but for now we must return the entire rest of the file.
|
||||
return buf, err
|
||||
}
|
||||
|
||||
// Read reads export data from in, decodes it, and returns type
|
||||
// information for the package.
|
||||
// The package name is specified by path.
|
||||
// File position information is added to fset.
|
||||
//
|
||||
// Read may inspect and add to the imports map to ensure that references
|
||||
// within the export data to other packages are consistent. The caller
|
||||
// must ensure that imports[path] does not exist, or exists but is
|
||||
// incomplete (see types.Package.Complete), and Read inserts the
|
||||
// resulting package into this map entry.
|
||||
//
|
||||
// On return, the state of the reader is undefined.
|
||||
func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package, path string) (*types.Package, error) {
|
||||
data, err := ioutil.ReadAll(in)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("reading export data for %q: %v", path, err)
|
||||
}
|
||||
|
||||
if bytes.HasPrefix(data, []byte("!<arch>")) {
|
||||
return nil, fmt.Errorf("can't read export data for %q directly from an archive file (call gcexportdata.NewReader first to extract export data)", path)
|
||||
}
|
||||
|
||||
// The App Engine Go runtime v1.6 uses the old export data format.
|
||||
// TODO(adonovan): delete once v1.7 has been around for a while.
|
||||
if bytes.HasPrefix(data, []byte("package ")) {
|
||||
return gcimporter.ImportData(imports, path, path, bytes.NewReader(data))
|
||||
}
|
||||
|
||||
_, pkg, err := gcimporter.BImportData(fset, imports, data, path)
|
||||
return pkg, err
|
||||
}
|
||||
|
||||
// Write writes encoded type information for the specified package to out.
|
||||
// The FileSet provides file position information for named objects.
|
||||
func Write(out io.Writer, fset *token.FileSet, pkg *types.Package) error {
|
||||
_, err := out.Write(gcimporter.BExportData(fset, pkg))
|
||||
return err
|
||||
}
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
// Copyright 2016 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 gcexportdata
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"go/token"
|
||||
"go/types"
|
||||
"os"
|
||||
)
|
||||
|
||||
// NewImporter returns a new instance of the types.Importer interface
|
||||
// that reads type information from export data files written by gc.
|
||||
// The Importer also satisfies types.ImporterFrom.
|
||||
//
|
||||
// Export data files are located using "go build" workspace conventions
|
||||
// and the build.Default context.
|
||||
//
|
||||
// Use this importer instead of go/importer.For("gc", ...) to avoid the
|
||||
// version-skew problems described in the documentation of this package,
|
||||
// or to control the FileSet or access the imports map populated during
|
||||
// package loading.
|
||||
//
|
||||
func NewImporter(fset *token.FileSet, imports map[string]*types.Package) types.ImporterFrom {
|
||||
return importer{fset, imports}
|
||||
}
|
||||
|
||||
type importer struct {
|
||||
fset *token.FileSet
|
||||
imports map[string]*types.Package
|
||||
}
|
||||
|
||||
func (imp importer) Import(importPath string) (*types.Package, error) {
|
||||
return imp.ImportFrom(importPath, "", 0)
|
||||
}
|
||||
|
||||
func (imp importer) ImportFrom(importPath, srcDir string, mode types.ImportMode) (_ *types.Package, err error) {
|
||||
filename, path := Find(importPath, srcDir)
|
||||
if filename == "" {
|
||||
if importPath == "unsafe" {
|
||||
// Even for unsafe, call Find first in case
|
||||
// the package was vendored.
|
||||
return types.Unsafe, nil
|
||||
}
|
||||
return nil, fmt.Errorf("can't find import: %s", importPath)
|
||||
}
|
||||
|
||||
if pkg, ok := imp.imports[path]; ok && pkg.Complete() {
|
||||
return pkg, nil // cache hit
|
||||
}
|
||||
|
||||
// open file
|
||||
f, err := os.Open(filename)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer func() {
|
||||
f.Close()
|
||||
if err != nil {
|
||||
// add file name to error
|
||||
err = fmt.Errorf("reading export data: %s: %v", filename, err)
|
||||
}
|
||||
}()
|
||||
|
||||
r, err := NewReader(f)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return Read(r, imp.fset, imp.imports, path)
|
||||
}
|
||||
|
|
@ -0,0 +1,30 @@
|
|||
load("@io_bazel_rules_go//go:def.bzl", "go_library")
|
||||
|
||||
go_library(
|
||||
name = "go_default_library",
|
||||
srcs = [
|
||||
"bexport.go",
|
||||
"bimport.go",
|
||||
"exportdata.go",
|
||||
"gcimporter.go",
|
||||
"isAlias18.go",
|
||||
"isAlias19.go",
|
||||
],
|
||||
importmap = "k8s.io/kubernetes/vendor/golang.org/x/tools/go/gcimporter15",
|
||||
importpath = "golang.org/x/tools/go/gcimporter15",
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "package-srcs",
|
||||
srcs = glob(["**"]),
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
filegroup(
|
||||
name = "all-srcs",
|
||||
srcs = [":package-srcs"],
|
||||
tags = ["automanaged"],
|
||||
visibility = ["//visibility:public"],
|
||||
)
|
||||
|
|
@ -0,0 +1,828 @@
|
|||
// Copyright 2016 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.
|
||||
|
||||
// Binary package export.
|
||||
// This file was derived from $GOROOT/src/cmd/compile/internal/gc/bexport.go;
|
||||
// see that file for specification of the format.
|
||||
|
||||
package gcimporter
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"go/ast"
|
||||
"go/constant"
|
||||
"go/token"
|
||||
"go/types"
|
||||
"log"
|
||||
"math"
|
||||
"math/big"
|
||||
"sort"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// If debugFormat is set, each integer and string value is preceded by a marker
|
||||
// and position information in the encoding. This mechanism permits an importer
|
||||
// to recognize immediately when it is out of sync. The importer recognizes this
|
||||
// mode automatically (i.e., it can import export data produced with debugging
|
||||
// support even if debugFormat is not set at the time of import). This mode will
|
||||
// lead to massively larger export data (by a factor of 2 to 3) and should only
|
||||
// be enabled during development and debugging.
|
||||
//
|
||||
// NOTE: This flag is the first flag to enable if importing dies because of
|
||||
// (suspected) format errors, and whenever a change is made to the format.
|
||||
const debugFormat = false // default: false
|
||||
|
||||
// If trace is set, debugging output is printed to std out.
|
||||
const trace = false // default: false
|
||||
|
||||
// Current export format version. Increase with each format change.
|
||||
// 4: type name objects support type aliases, uses aliasTag
|
||||
// 3: Go1.8 encoding (same as version 2, aliasTag defined but never used)
|
||||
// 2: removed unused bool in ODCL export (compiler only)
|
||||
// 1: header format change (more regular), export package for _ struct fields
|
||||
// 0: Go1.7 encoding
|
||||
const exportVersion = 4
|
||||
|
||||
// trackAllTypes enables cycle tracking for all types, not just named
|
||||
// types. The existing compiler invariants assume that unnamed types
|
||||
// that are not completely set up are not used, or else there are spurious
|
||||
// errors.
|
||||
// If disabled, only named types are tracked, possibly leading to slightly
|
||||
// less efficient encoding in rare cases. It also prevents the export of
|
||||
// some corner-case type declarations (but those are not handled correctly
|
||||
// with with the textual export format either).
|
||||
// TODO(gri) enable and remove once issues caused by it are fixed
|
||||
const trackAllTypes = false
|
||||
|
||||
type exporter struct {
|
||||
fset *token.FileSet
|
||||
out bytes.Buffer
|
||||
|
||||
// object -> index maps, indexed in order of serialization
|
||||
strIndex map[string]int
|
||||
pkgIndex map[*types.Package]int
|
||||
typIndex map[types.Type]int
|
||||
|
||||
// position encoding
|
||||
posInfoFormat bool
|
||||
prevFile string
|
||||
prevLine int
|
||||
|
||||
// debugging support
|
||||
written int // bytes written
|
||||
indent int // for trace
|
||||
}
|
||||
|
||||
// BExportData returns binary export data for pkg.
|
||||
// If no file set is provided, position info will be missing.
|
||||
func BExportData(fset *token.FileSet, pkg *types.Package) []byte {
|
||||
p := exporter{
|
||||
fset: fset,
|
||||
strIndex: map[string]int{"": 0}, // empty string is mapped to 0
|
||||
pkgIndex: make(map[*types.Package]int),
|
||||
typIndex: make(map[types.Type]int),
|
||||
posInfoFormat: true, // TODO(gri) might become a flag, eventually
|
||||
}
|
||||
|
||||
// write version info
|
||||
// The version string must start with "version %d" where %d is the version
|
||||
// number. Additional debugging information may follow after a blank; that
|
||||
// text is ignored by the importer.
|
||||
p.rawStringln(fmt.Sprintf("version %d", exportVersion))
|
||||
var debug string
|
||||
if debugFormat {
|
||||
debug = "debug"
|
||||
}
|
||||
p.rawStringln(debug) // cannot use p.bool since it's affected by debugFormat; also want to see this clearly
|
||||
p.bool(trackAllTypes)
|
||||
p.bool(p.posInfoFormat)
|
||||
|
||||
// --- generic export data ---
|
||||
|
||||
// populate type map with predeclared "known" types
|
||||
for index, typ := range predeclared {
|
||||
p.typIndex[typ] = index
|
||||
}
|
||||
if len(p.typIndex) != len(predeclared) {
|
||||
log.Fatalf("gcimporter: duplicate entries in type map?")
|
||||
}
|
||||
|
||||
// write package data
|
||||
p.pkg(pkg, true)
|
||||
if trace {
|
||||
p.tracef("\n")
|
||||
}
|
||||
|
||||
// write objects
|
||||
objcount := 0
|
||||
scope := pkg.Scope()
|
||||
for _, name := range scope.Names() {
|
||||
if !ast.IsExported(name) {
|
||||
continue
|
||||
}
|
||||
if trace {
|
||||
p.tracef("\n")
|
||||
}
|
||||
p.obj(scope.Lookup(name))
|
||||
objcount++
|
||||
}
|
||||
|
||||
// indicate end of list
|
||||
if trace {
|
||||
p.tracef("\n")
|
||||
}
|
||||
p.tag(endTag)
|
||||
|
||||
// for self-verification only (redundant)
|
||||
p.int(objcount)
|
||||
|
||||
if trace {
|
||||
p.tracef("\n")
|
||||
}
|
||||
|
||||
// --- end of export data ---
|
||||
|
||||
return p.out.Bytes()
|
||||
}
|
||||
|
||||
func (p *exporter) pkg(pkg *types.Package, emptypath bool) {
|
||||
if pkg == nil {
|
||||
log.Fatalf("gcimporter: unexpected nil pkg")
|
||||
}
|
||||
|
||||
// if we saw the package before, write its index (>= 0)
|
||||
if i, ok := p.pkgIndex[pkg]; ok {
|
||||
p.index('P', i)
|
||||
return
|
||||
}
|
||||
|
||||
// otherwise, remember the package, write the package tag (< 0) and package data
|
||||
if trace {
|
||||
p.tracef("P%d = { ", len(p.pkgIndex))
|
||||
defer p.tracef("} ")
|
||||
}
|
||||
p.pkgIndex[pkg] = len(p.pkgIndex)
|
||||
|
||||
p.tag(packageTag)
|
||||
p.string(pkg.Name())
|
||||
if emptypath {
|
||||
p.string("")
|
||||
} else {
|
||||
p.string(pkg.Path())
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) obj(obj types.Object) {
|
||||
switch obj := obj.(type) {
|
||||
case *types.Const:
|
||||
p.tag(constTag)
|
||||
p.pos(obj)
|
||||
p.qualifiedName(obj)
|
||||
p.typ(obj.Type())
|
||||
p.value(obj.Val())
|
||||
|
||||
case *types.TypeName:
|
||||
if isAlias(obj) {
|
||||
p.tag(aliasTag)
|
||||
p.pos(obj)
|
||||
p.qualifiedName(obj)
|
||||
} else {
|
||||
p.tag(typeTag)
|
||||
}
|
||||
p.typ(obj.Type())
|
||||
|
||||
case *types.Var:
|
||||
p.tag(varTag)
|
||||
p.pos(obj)
|
||||
p.qualifiedName(obj)
|
||||
p.typ(obj.Type())
|
||||
|
||||
case *types.Func:
|
||||
p.tag(funcTag)
|
||||
p.pos(obj)
|
||||
p.qualifiedName(obj)
|
||||
sig := obj.Type().(*types.Signature)
|
||||
p.paramList(sig.Params(), sig.Variadic())
|
||||
p.paramList(sig.Results(), false)
|
||||
|
||||
default:
|
||||
log.Fatalf("gcimporter: unexpected object %v (%T)", obj, obj)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) pos(obj types.Object) {
|
||||
if !p.posInfoFormat {
|
||||
return
|
||||
}
|
||||
|
||||
file, line := p.fileLine(obj)
|
||||
if file == p.prevFile {
|
||||
// common case: write line delta
|
||||
// delta == 0 means different file or no line change
|
||||
delta := line - p.prevLine
|
||||
p.int(delta)
|
||||
if delta == 0 {
|
||||
p.int(-1) // -1 means no file change
|
||||
}
|
||||
} else {
|
||||
// different file
|
||||
p.int(0)
|
||||
// Encode filename as length of common prefix with previous
|
||||
// filename, followed by (possibly empty) suffix. Filenames
|
||||
// frequently share path prefixes, so this can save a lot
|
||||
// of space and make export data size less dependent on file
|
||||
// path length. The suffix is unlikely to be empty because
|
||||
// file names tend to end in ".go".
|
||||
n := commonPrefixLen(p.prevFile, file)
|
||||
p.int(n) // n >= 0
|
||||
p.string(file[n:]) // write suffix only
|
||||
p.prevFile = file
|
||||
p.int(line)
|
||||
}
|
||||
p.prevLine = line
|
||||
}
|
||||
|
||||
func (p *exporter) fileLine(obj types.Object) (file string, line int) {
|
||||
if p.fset != nil {
|
||||
pos := p.fset.Position(obj.Pos())
|
||||
file = pos.Filename
|
||||
line = pos.Line
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func commonPrefixLen(a, b string) int {
|
||||
if len(a) > len(b) {
|
||||
a, b = b, a
|
||||
}
|
||||
// len(a) <= len(b)
|
||||
i := 0
|
||||
for i < len(a) && a[i] == b[i] {
|
||||
i++
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
func (p *exporter) qualifiedName(obj types.Object) {
|
||||
p.string(obj.Name())
|
||||
p.pkg(obj.Pkg(), false)
|
||||
}
|
||||
|
||||
func (p *exporter) typ(t types.Type) {
|
||||
if t == nil {
|
||||
log.Fatalf("gcimporter: nil type")
|
||||
}
|
||||
|
||||
// Possible optimization: Anonymous pointer types *T where
|
||||
// T is a named type are common. We could canonicalize all
|
||||
// such types *T to a single type PT = *T. This would lead
|
||||
// to at most one *T entry in typIndex, and all future *T's
|
||||
// would be encoded as the respective index directly. Would
|
||||
// save 1 byte (pointerTag) per *T and reduce the typIndex
|
||||
// size (at the cost of a canonicalization map). We can do
|
||||
// this later, without encoding format change.
|
||||
|
||||
// if we saw the type before, write its index (>= 0)
|
||||
if i, ok := p.typIndex[t]; ok {
|
||||
p.index('T', i)
|
||||
return
|
||||
}
|
||||
|
||||
// otherwise, remember the type, write the type tag (< 0) and type data
|
||||
if trackAllTypes {
|
||||
if trace {
|
||||
p.tracef("T%d = {>\n", len(p.typIndex))
|
||||
defer p.tracef("<\n} ")
|
||||
}
|
||||
p.typIndex[t] = len(p.typIndex)
|
||||
}
|
||||
|
||||
switch t := t.(type) {
|
||||
case *types.Named:
|
||||
if !trackAllTypes {
|
||||
// if we don't track all types, track named types now
|
||||
p.typIndex[t] = len(p.typIndex)
|
||||
}
|
||||
|
||||
p.tag(namedTag)
|
||||
p.pos(t.Obj())
|
||||
p.qualifiedName(t.Obj())
|
||||
p.typ(t.Underlying())
|
||||
if !types.IsInterface(t) {
|
||||
p.assocMethods(t)
|
||||
}
|
||||
|
||||
case *types.Array:
|
||||
p.tag(arrayTag)
|
||||
p.int64(t.Len())
|
||||
p.typ(t.Elem())
|
||||
|
||||
case *types.Slice:
|
||||
p.tag(sliceTag)
|
||||
p.typ(t.Elem())
|
||||
|
||||
case *dddSlice:
|
||||
p.tag(dddTag)
|
||||
p.typ(t.elem)
|
||||
|
||||
case *types.Struct:
|
||||
p.tag(structTag)
|
||||
p.fieldList(t)
|
||||
|
||||
case *types.Pointer:
|
||||
p.tag(pointerTag)
|
||||
p.typ(t.Elem())
|
||||
|
||||
case *types.Signature:
|
||||
p.tag(signatureTag)
|
||||
p.paramList(t.Params(), t.Variadic())
|
||||
p.paramList(t.Results(), false)
|
||||
|
||||
case *types.Interface:
|
||||
p.tag(interfaceTag)
|
||||
p.iface(t)
|
||||
|
||||
case *types.Map:
|
||||
p.tag(mapTag)
|
||||
p.typ(t.Key())
|
||||
p.typ(t.Elem())
|
||||
|
||||
case *types.Chan:
|
||||
p.tag(chanTag)
|
||||
p.int(int(3 - t.Dir())) // hack
|
||||
p.typ(t.Elem())
|
||||
|
||||
default:
|
||||
log.Fatalf("gcimporter: unexpected type %T: %s", t, t)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) assocMethods(named *types.Named) {
|
||||
// Sort methods (for determinism).
|
||||
var methods []*types.Func
|
||||
for i := 0; i < named.NumMethods(); i++ {
|
||||
methods = append(methods, named.Method(i))
|
||||
}
|
||||
sort.Sort(methodsByName(methods))
|
||||
|
||||
p.int(len(methods))
|
||||
|
||||
if trace && methods != nil {
|
||||
p.tracef("associated methods {>\n")
|
||||
}
|
||||
|
||||
for i, m := range methods {
|
||||
if trace && i > 0 {
|
||||
p.tracef("\n")
|
||||
}
|
||||
|
||||
p.pos(m)
|
||||
name := m.Name()
|
||||
p.string(name)
|
||||
if !exported(name) {
|
||||
p.pkg(m.Pkg(), false)
|
||||
}
|
||||
|
||||
sig := m.Type().(*types.Signature)
|
||||
p.paramList(types.NewTuple(sig.Recv()), false)
|
||||
p.paramList(sig.Params(), sig.Variadic())
|
||||
p.paramList(sig.Results(), false)
|
||||
p.int(0) // dummy value for go:nointerface pragma - ignored by importer
|
||||
}
|
||||
|
||||
if trace && methods != nil {
|
||||
p.tracef("<\n} ")
|
||||
}
|
||||
}
|
||||
|
||||
type methodsByName []*types.Func
|
||||
|
||||
func (x methodsByName) Len() int { return len(x) }
|
||||
func (x methodsByName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
|
||||
func (x methodsByName) Less(i, j int) bool { return x[i].Name() < x[j].Name() }
|
||||
|
||||
func (p *exporter) fieldList(t *types.Struct) {
|
||||
if trace && t.NumFields() > 0 {
|
||||
p.tracef("fields {>\n")
|
||||
defer p.tracef("<\n} ")
|
||||
}
|
||||
|
||||
p.int(t.NumFields())
|
||||
for i := 0; i < t.NumFields(); i++ {
|
||||
if trace && i > 0 {
|
||||
p.tracef("\n")
|
||||
}
|
||||
p.field(t.Field(i))
|
||||
p.string(t.Tag(i))
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) field(f *types.Var) {
|
||||
if !f.IsField() {
|
||||
log.Fatalf("gcimporter: field expected")
|
||||
}
|
||||
|
||||
p.pos(f)
|
||||
p.fieldName(f)
|
||||
p.typ(f.Type())
|
||||
}
|
||||
|
||||
func (p *exporter) iface(t *types.Interface) {
|
||||
// TODO(gri): enable importer to load embedded interfaces,
|
||||
// then emit Embeddeds and ExplicitMethods separately here.
|
||||
p.int(0)
|
||||
|
||||
n := t.NumMethods()
|
||||
if trace && n > 0 {
|
||||
p.tracef("methods {>\n")
|
||||
defer p.tracef("<\n} ")
|
||||
}
|
||||
p.int(n)
|
||||
for i := 0; i < n; i++ {
|
||||
if trace && i > 0 {
|
||||
p.tracef("\n")
|
||||
}
|
||||
p.method(t.Method(i))
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) method(m *types.Func) {
|
||||
sig := m.Type().(*types.Signature)
|
||||
if sig.Recv() == nil {
|
||||
log.Fatalf("gcimporter: method expected")
|
||||
}
|
||||
|
||||
p.pos(m)
|
||||
p.string(m.Name())
|
||||
if m.Name() != "_" && !ast.IsExported(m.Name()) {
|
||||
p.pkg(m.Pkg(), false)
|
||||
}
|
||||
|
||||
// interface method; no need to encode receiver.
|
||||
p.paramList(sig.Params(), sig.Variadic())
|
||||
p.paramList(sig.Results(), false)
|
||||
}
|
||||
|
||||
func (p *exporter) fieldName(f *types.Var) {
|
||||
name := f.Name()
|
||||
|
||||
if f.Anonymous() {
|
||||
// anonymous field - we distinguish between 3 cases:
|
||||
// 1) field name matches base type name and is exported
|
||||
// 2) field name matches base type name and is not exported
|
||||
// 3) field name doesn't match base type name (alias name)
|
||||
bname := basetypeName(f.Type())
|
||||
if name == bname {
|
||||
if ast.IsExported(name) {
|
||||
name = "" // 1) we don't need to know the field name or package
|
||||
} else {
|
||||
name = "?" // 2) use unexported name "?" to force package export
|
||||
}
|
||||
} else {
|
||||
// 3) indicate alias and export name as is
|
||||
// (this requires an extra "@" but this is a rare case)
|
||||
p.string("@")
|
||||
}
|
||||
}
|
||||
|
||||
p.string(name)
|
||||
if name != "" && !ast.IsExported(name) {
|
||||
p.pkg(f.Pkg(), false)
|
||||
}
|
||||
}
|
||||
|
||||
func basetypeName(typ types.Type) string {
|
||||
switch typ := deref(typ).(type) {
|
||||
case *types.Basic:
|
||||
return typ.Name()
|
||||
case *types.Named:
|
||||
return typ.Obj().Name()
|
||||
default:
|
||||
return "" // unnamed type
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) paramList(params *types.Tuple, variadic bool) {
|
||||
// use negative length to indicate unnamed parameters
|
||||
// (look at the first parameter only since either all
|
||||
// names are present or all are absent)
|
||||
n := params.Len()
|
||||
if n > 0 && params.At(0).Name() == "" {
|
||||
n = -n
|
||||
}
|
||||
p.int(n)
|
||||
for i := 0; i < params.Len(); i++ {
|
||||
q := params.At(i)
|
||||
t := q.Type()
|
||||
if variadic && i == params.Len()-1 {
|
||||
t = &dddSlice{t.(*types.Slice).Elem()}
|
||||
}
|
||||
p.typ(t)
|
||||
if n > 0 {
|
||||
name := q.Name()
|
||||
p.string(name)
|
||||
if name != "_" {
|
||||
p.pkg(q.Pkg(), false)
|
||||
}
|
||||
}
|
||||
p.string("") // no compiler-specific info
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) value(x constant.Value) {
|
||||
if trace {
|
||||
p.tracef("= ")
|
||||
}
|
||||
|
||||
switch x.Kind() {
|
||||
case constant.Bool:
|
||||
tag := falseTag
|
||||
if constant.BoolVal(x) {
|
||||
tag = trueTag
|
||||
}
|
||||
p.tag(tag)
|
||||
|
||||
case constant.Int:
|
||||
if v, exact := constant.Int64Val(x); exact {
|
||||
// common case: x fits into an int64 - use compact encoding
|
||||
p.tag(int64Tag)
|
||||
p.int64(v)
|
||||
return
|
||||
}
|
||||
// uncommon case: large x - use float encoding
|
||||
// (powers of 2 will be encoded efficiently with exponent)
|
||||
p.tag(floatTag)
|
||||
p.float(constant.ToFloat(x))
|
||||
|
||||
case constant.Float:
|
||||
p.tag(floatTag)
|
||||
p.float(x)
|
||||
|
||||
case constant.Complex:
|
||||
p.tag(complexTag)
|
||||
p.float(constant.Real(x))
|
||||
p.float(constant.Imag(x))
|
||||
|
||||
case constant.String:
|
||||
p.tag(stringTag)
|
||||
p.string(constant.StringVal(x))
|
||||
|
||||
case constant.Unknown:
|
||||
// package contains type errors
|
||||
p.tag(unknownTag)
|
||||
|
||||
default:
|
||||
log.Fatalf("gcimporter: unexpected value %v (%T)", x, x)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *exporter) float(x constant.Value) {
|
||||
if x.Kind() != constant.Float {
|
||||
log.Fatalf("gcimporter: unexpected constant %v, want float", x)
|
||||
}
|
||||
// extract sign (there is no -0)
|
||||
sign := constant.Sign(x)
|
||||
if sign == 0 {
|
||||
// x == 0
|
||||
p.int(0)
|
||||
return
|
||||
}
|
||||
// x != 0
|
||||
|
||||
var f big.Float
|
||||
if v, exact := constant.Float64Val(x); exact {
|
||||
// float64
|
||||
f.SetFloat64(v)
|
||||
} else if num, denom := constant.Num(x), constant.Denom(x); num.Kind() == constant.Int {
|
||||
// TODO(gri): add big.Rat accessor to constant.Value.
|
||||
r := valueToRat(num)
|
||||
f.SetRat(r.Quo(r, valueToRat(denom)))
|
||||
} else {
|
||||
// Value too large to represent as a fraction => inaccessible.
|
||||
// TODO(gri): add big.Float accessor to constant.Value.
|
||||
f.SetFloat64(math.MaxFloat64) // FIXME
|
||||
}
|
||||
|
||||
// extract exponent such that 0.5 <= m < 1.0
|
||||
var m big.Float
|
||||
exp := f.MantExp(&m)
|
||||
|
||||
// extract mantissa as *big.Int
|
||||
// - set exponent large enough so mant satisfies mant.IsInt()
|
||||
// - get *big.Int from mant
|
||||
m.SetMantExp(&m, int(m.MinPrec()))
|
||||
mant, acc := m.Int(nil)
|
||||
if acc != big.Exact {
|
||||
log.Fatalf("gcimporter: internal error")
|
||||
}
|
||||
|
||||
p.int(sign)
|
||||
p.int(exp)
|
||||
p.string(string(mant.Bytes()))
|
||||
}
|
||||
|
||||
func valueToRat(x constant.Value) *big.Rat {
|
||||
// Convert little-endian to big-endian.
|
||||
// I can't believe this is necessary.
|
||||
bytes := constant.Bytes(x)
|
||||
for i := 0; i < len(bytes)/2; i++ {
|
||||
bytes[i], bytes[len(bytes)-1-i] = bytes[len(bytes)-1-i], bytes[i]
|
||||
}
|
||||
return new(big.Rat).SetInt(new(big.Int).SetBytes(bytes))
|
||||
}
|
||||
|
||||
func (p *exporter) bool(b bool) bool {
|
||||
if trace {
|
||||
p.tracef("[")
|
||||
defer p.tracef("= %v] ", b)
|
||||
}
|
||||
|
||||
x := 0
|
||||
if b {
|
||||
x = 1
|
||||
}
|
||||
p.int(x)
|
||||
return b
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Low-level encoders
|
||||
|
||||
func (p *exporter) index(marker byte, index int) {
|
||||
if index < 0 {
|
||||
log.Fatalf("gcimporter: invalid index < 0")
|
||||
}
|
||||
if debugFormat {
|
||||
p.marker('t')
|
||||
}
|
||||
if trace {
|
||||
p.tracef("%c%d ", marker, index)
|
||||
}
|
||||
p.rawInt64(int64(index))
|
||||
}
|
||||
|
||||
func (p *exporter) tag(tag int) {
|
||||
if tag >= 0 {
|
||||
log.Fatalf("gcimporter: invalid tag >= 0")
|
||||
}
|
||||
if debugFormat {
|
||||
p.marker('t')
|
||||
}
|
||||
if trace {
|
||||
p.tracef("%s ", tagString[-tag])
|
||||
}
|
||||
p.rawInt64(int64(tag))
|
||||
}
|
||||
|
||||
func (p *exporter) int(x int) {
|
||||
p.int64(int64(x))
|
||||
}
|
||||
|
||||
func (p *exporter) int64(x int64) {
|
||||
if debugFormat {
|
||||
p.marker('i')
|
||||
}
|
||||
if trace {
|
||||
p.tracef("%d ", x)
|
||||
}
|
||||
p.rawInt64(x)
|
||||
}
|
||||
|
||||
func (p *exporter) string(s string) {
|
||||
if debugFormat {
|
||||
p.marker('s')
|
||||
}
|
||||
if trace {
|
||||
p.tracef("%q ", s)
|
||||
}
|
||||
// if we saw the string before, write its index (>= 0)
|
||||
// (the empty string is mapped to 0)
|
||||
if i, ok := p.strIndex[s]; ok {
|
||||
p.rawInt64(int64(i))
|
||||
return
|
||||
}
|
||||
// otherwise, remember string and write its negative length and bytes
|
||||
p.strIndex[s] = len(p.strIndex)
|
||||
p.rawInt64(-int64(len(s)))
|
||||
for i := 0; i < len(s); i++ {
|
||||
p.rawByte(s[i])
|
||||
}
|
||||
}
|
||||
|
||||
// marker emits a marker byte and position information which makes
|
||||
// it easy for a reader to detect if it is "out of sync". Used for
|
||||
// debugFormat format only.
|
||||
func (p *exporter) marker(m byte) {
|
||||
p.rawByte(m)
|
||||
// Enable this for help tracking down the location
|
||||
// of an incorrect marker when running in debugFormat.
|
||||
if false && trace {
|
||||
p.tracef("#%d ", p.written)
|
||||
}
|
||||
p.rawInt64(int64(p.written))
|
||||
}
|
||||
|
||||
// rawInt64 should only be used by low-level encoders.
|
||||
func (p *exporter) rawInt64(x int64) {
|
||||
var tmp [binary.MaxVarintLen64]byte
|
||||
n := binary.PutVarint(tmp[:], x)
|
||||
for i := 0; i < n; i++ {
|
||||
p.rawByte(tmp[i])
|
||||
}
|
||||
}
|
||||
|
||||
// rawStringln should only be used to emit the initial version string.
|
||||
func (p *exporter) rawStringln(s string) {
|
||||
for i := 0; i < len(s); i++ {
|
||||
p.rawByte(s[i])
|
||||
}
|
||||
p.rawByte('\n')
|
||||
}
|
||||
|
||||
// rawByte is the bottleneck interface to write to p.out.
|
||||
// rawByte escapes b as follows (any encoding does that
|
||||
// hides '$'):
|
||||
//
|
||||
// '$' => '|' 'S'
|
||||
// '|' => '|' '|'
|
||||
//
|
||||
// Necessary so other tools can find the end of the
|
||||
// export data by searching for "$$".
|
||||
// rawByte should only be used by low-level encoders.
|
||||
func (p *exporter) rawByte(b byte) {
|
||||
switch b {
|
||||
case '$':
|
||||
// write '$' as '|' 'S'
|
||||
b = 'S'
|
||||
fallthrough
|
||||
case '|':
|
||||
// write '|' as '|' '|'
|
||||
p.out.WriteByte('|')
|
||||
p.written++
|
||||
}
|
||||
p.out.WriteByte(b)
|
||||
p.written++
|
||||
}
|
||||
|
||||
// tracef is like fmt.Printf but it rewrites the format string
|
||||
// to take care of indentation.
|
||||
func (p *exporter) tracef(format string, args ...interface{}) {
|
||||
if strings.ContainsAny(format, "<>\n") {
|
||||
var buf bytes.Buffer
|
||||
for i := 0; i < len(format); i++ {
|
||||
// no need to deal with runes
|
||||
ch := format[i]
|
||||
switch ch {
|
||||
case '>':
|
||||
p.indent++
|
||||
continue
|
||||
case '<':
|
||||
p.indent--
|
||||
continue
|
||||
}
|
||||
buf.WriteByte(ch)
|
||||
if ch == '\n' {
|
||||
for j := p.indent; j > 0; j-- {
|
||||
buf.WriteString(". ")
|
||||
}
|
||||
}
|
||||
}
|
||||
format = buf.String()
|
||||
}
|
||||
fmt.Printf(format, args...)
|
||||
}
|
||||
|
||||
// Debugging support.
|
||||
// (tagString is only used when tracing is enabled)
|
||||
var tagString = [...]string{
|
||||
// Packages
|
||||
-packageTag: "package",
|
||||
|
||||
// Types
|
||||
-namedTag: "named type",
|
||||
-arrayTag: "array",
|
||||
-sliceTag: "slice",
|
||||
-dddTag: "ddd",
|
||||
-structTag: "struct",
|
||||
-pointerTag: "pointer",
|
||||
-signatureTag: "signature",
|
||||
-interfaceTag: "interface",
|
||||
-mapTag: "map",
|
||||
-chanTag: "chan",
|
||||
|
||||
// Values
|
||||
-falseTag: "false",
|
||||
-trueTag: "true",
|
||||
-int64Tag: "int64",
|
||||
-floatTag: "float",
|
||||
-fractionTag: "fraction",
|
||||
-complexTag: "complex",
|
||||
-stringTag: "string",
|
||||
-unknownTag: "unknown",
|
||||
|
||||
// Type aliases
|
||||
-aliasTag: "alias",
|
||||
}
|
||||
|
|
@ -0,0 +1,993 @@
|
|||
// Copyright 2015 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.
|
||||
|
||||
// This file is a copy of $GOROOT/src/go/internal/gcimporter/bimport.go.
|
||||
|
||||
package gcimporter
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"go/constant"
|
||||
"go/token"
|
||||
"go/types"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"unicode"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
type importer struct {
|
||||
imports map[string]*types.Package
|
||||
data []byte
|
||||
importpath string
|
||||
buf []byte // for reading strings
|
||||
version int // export format version
|
||||
|
||||
// object lists
|
||||
strList []string // in order of appearance
|
||||
pathList []string // in order of appearance
|
||||
pkgList []*types.Package // in order of appearance
|
||||
typList []types.Type // in order of appearance
|
||||
interfaceList []*types.Interface // for delayed completion only
|
||||
trackAllTypes bool
|
||||
|
||||
// position encoding
|
||||
posInfoFormat bool
|
||||
prevFile string
|
||||
prevLine int
|
||||
fset *token.FileSet
|
||||
files map[string]*token.File
|
||||
|
||||
// debugging support
|
||||
debugFormat bool
|
||||
read int // bytes read
|
||||
}
|
||||
|
||||
// BImportData imports a package from the serialized package data
|
||||
// and returns the number of bytes consumed and a reference to the package.
|
||||
// If the export data version is not recognized or the format is otherwise
|
||||
// compromised, an error is returned.
|
||||
func BImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) {
|
||||
// catch panics and return them as errors
|
||||
defer func() {
|
||||
if e := recover(); e != nil {
|
||||
// The package (filename) causing the problem is added to this
|
||||
// error by a wrapper in the caller (Import in gcimporter.go).
|
||||
// Return a (possibly nil or incomplete) package unchanged (see #16088).
|
||||
err = fmt.Errorf("cannot import, possibly version skew (%v) - reinstall package", e)
|
||||
}
|
||||
}()
|
||||
|
||||
p := importer{
|
||||
imports: imports,
|
||||
data: data,
|
||||
importpath: path,
|
||||
version: -1, // unknown version
|
||||
strList: []string{""}, // empty string is mapped to 0
|
||||
pathList: []string{""}, // empty string is mapped to 0
|
||||
fset: fset,
|
||||
files: make(map[string]*token.File),
|
||||
}
|
||||
|
||||
// read version info
|
||||
var versionstr string
|
||||
if b := p.rawByte(); b == 'c' || b == 'd' {
|
||||
// Go1.7 encoding; first byte encodes low-level
|
||||
// encoding format (compact vs debug).
|
||||
// For backward-compatibility only (avoid problems with
|
||||
// old installed packages). Newly compiled packages use
|
||||
// the extensible format string.
|
||||
// TODO(gri) Remove this support eventually; after Go1.8.
|
||||
if b == 'd' {
|
||||
p.debugFormat = true
|
||||
}
|
||||
p.trackAllTypes = p.rawByte() == 'a'
|
||||
p.posInfoFormat = p.int() != 0
|
||||
versionstr = p.string()
|
||||
if versionstr == "v1" {
|
||||
p.version = 0
|
||||
}
|
||||
} else {
|
||||
// Go1.8 extensible encoding
|
||||
// read version string and extract version number (ignore anything after the version number)
|
||||
versionstr = p.rawStringln(b)
|
||||
if s := strings.SplitN(versionstr, " ", 3); len(s) >= 2 && s[0] == "version" {
|
||||
if v, err := strconv.Atoi(s[1]); err == nil && v > 0 {
|
||||
p.version = v
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// read version specific flags - extend as necessary
|
||||
switch p.version {
|
||||
// case 6:
|
||||
// ...
|
||||
// fallthrough
|
||||
case 5, 4, 3, 2, 1:
|
||||
p.debugFormat = p.rawStringln(p.rawByte()) == "debug"
|
||||
p.trackAllTypes = p.int() != 0
|
||||
p.posInfoFormat = p.int() != 0
|
||||
case 0:
|
||||
// Go1.7 encoding format - nothing to do here
|
||||
default:
|
||||
errorf("unknown export format version %d (%q)", p.version, versionstr)
|
||||
}
|
||||
|
||||
// --- generic export data ---
|
||||
|
||||
// populate typList with predeclared "known" types
|
||||
p.typList = append(p.typList, predeclared...)
|
||||
|
||||
// read package data
|
||||
pkg = p.pkg()
|
||||
|
||||
// read objects of phase 1 only (see cmd/compiler/internal/gc/bexport.go)
|
||||
objcount := 0
|
||||
for {
|
||||
tag := p.tagOrIndex()
|
||||
if tag == endTag {
|
||||
break
|
||||
}
|
||||
p.obj(tag)
|
||||
objcount++
|
||||
}
|
||||
|
||||
// self-verification
|
||||
if count := p.int(); count != objcount {
|
||||
errorf("got %d objects; want %d", objcount, count)
|
||||
}
|
||||
|
||||
// ignore compiler-specific import data
|
||||
|
||||
// complete interfaces
|
||||
// TODO(gri) re-investigate if we still need to do this in a delayed fashion
|
||||
for _, typ := range p.interfaceList {
|
||||
typ.Complete()
|
||||
}
|
||||
|
||||
// record all referenced packages as imports
|
||||
list := append(([]*types.Package)(nil), p.pkgList[1:]...)
|
||||
sort.Sort(byPath(list))
|
||||
pkg.SetImports(list)
|
||||
|
||||
// package was imported completely and without errors
|
||||
pkg.MarkComplete()
|
||||
|
||||
return p.read, pkg, nil
|
||||
}
|
||||
|
||||
func errorf(format string, args ...interface{}) {
|
||||
panic(fmt.Sprintf(format, args...))
|
||||
}
|
||||
|
||||
func (p *importer) pkg() *types.Package {
|
||||
// if the package was seen before, i is its index (>= 0)
|
||||
i := p.tagOrIndex()
|
||||
if i >= 0 {
|
||||
return p.pkgList[i]
|
||||
}
|
||||
|
||||
// otherwise, i is the package tag (< 0)
|
||||
if i != packageTag {
|
||||
errorf("unexpected package tag %d version %d", i, p.version)
|
||||
}
|
||||
|
||||
// read package data
|
||||
name := p.string()
|
||||
var path string
|
||||
if p.version >= 5 {
|
||||
path = p.path()
|
||||
} else {
|
||||
path = p.string()
|
||||
}
|
||||
|
||||
// we should never see an empty package name
|
||||
if name == "" {
|
||||
errorf("empty package name in import")
|
||||
}
|
||||
|
||||
// an empty path denotes the package we are currently importing;
|
||||
// it must be the first package we see
|
||||
if (path == "") != (len(p.pkgList) == 0) {
|
||||
errorf("package path %q for pkg index %d", path, len(p.pkgList))
|
||||
}
|
||||
|
||||
// if the package was imported before, use that one; otherwise create a new one
|
||||
if path == "" {
|
||||
path = p.importpath
|
||||
}
|
||||
pkg := p.imports[path]
|
||||
if pkg == nil {
|
||||
pkg = types.NewPackage(path, name)
|
||||
p.imports[path] = pkg
|
||||
} else if pkg.Name() != name {
|
||||
errorf("conflicting names %s and %s for package %q", pkg.Name(), name, path)
|
||||
}
|
||||
p.pkgList = append(p.pkgList, pkg)
|
||||
|
||||
return pkg
|
||||
}
|
||||
|
||||
// objTag returns the tag value for each object kind.
|
||||
func objTag(obj types.Object) int {
|
||||
switch obj.(type) {
|
||||
case *types.Const:
|
||||
return constTag
|
||||
case *types.TypeName:
|
||||
return typeTag
|
||||
case *types.Var:
|
||||
return varTag
|
||||
case *types.Func:
|
||||
return funcTag
|
||||
default:
|
||||
errorf("unexpected object: %v (%T)", obj, obj) // panics
|
||||
panic("unreachable")
|
||||
}
|
||||
}
|
||||
|
||||
func sameObj(a, b types.Object) bool {
|
||||
// Because unnamed types are not canonicalized, we cannot simply compare types for
|
||||
// (pointer) identity.
|
||||
// Ideally we'd check equality of constant values as well, but this is good enough.
|
||||
return objTag(a) == objTag(b) && types.Identical(a.Type(), b.Type())
|
||||
}
|
||||
|
||||
func (p *importer) declare(obj types.Object) {
|
||||
pkg := obj.Pkg()
|
||||
if alt := pkg.Scope().Insert(obj); alt != nil {
|
||||
// This can only trigger if we import a (non-type) object a second time.
|
||||
// Excluding type aliases, this cannot happen because 1) we only import a package
|
||||
// once; and b) we ignore compiler-specific export data which may contain
|
||||
// functions whose inlined function bodies refer to other functions that
|
||||
// were already imported.
|
||||
// However, type aliases require reexporting the original type, so we need
|
||||
// to allow it (see also the comment in cmd/compile/internal/gc/bimport.go,
|
||||
// method importer.obj, switch case importing functions).
|
||||
// TODO(gri) review/update this comment once the gc compiler handles type aliases.
|
||||
if !sameObj(obj, alt) {
|
||||
errorf("inconsistent import:\n\t%v\npreviously imported as:\n\t%v\n", obj, alt)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (p *importer) obj(tag int) {
|
||||
switch tag {
|
||||
case constTag:
|
||||
pos := p.pos()
|
||||
pkg, name := p.qualifiedName()
|
||||
typ := p.typ(nil)
|
||||
val := p.value()
|
||||
p.declare(types.NewConst(pos, pkg, name, typ, val))
|
||||
|
||||
case aliasTag:
|
||||
// TODO(gri) verify type alias hookup is correct
|
||||
pos := p.pos()
|
||||
pkg, name := p.qualifiedName()
|
||||
typ := p.typ(nil)
|
||||
p.declare(types.NewTypeName(pos, pkg, name, typ))
|
||||
|
||||
case typeTag:
|
||||
p.typ(nil)
|
||||
|
||||
case varTag:
|
||||
pos := p.pos()
|
||||
pkg, name := p.qualifiedName()
|
||||
typ := p.typ(nil)
|
||||
p.declare(types.NewVar(pos, pkg, name, typ))
|
||||
|
||||
case funcTag:
|
||||
pos := p.pos()
|
||||
pkg, name := p.qualifiedName()
|
||||
params, isddd := p.paramList()
|
||||
result, _ := p.paramList()
|
||||
sig := types.NewSignature(nil, params, result, isddd)
|
||||
p.declare(types.NewFunc(pos, pkg, name, sig))
|
||||
|
||||
default:
|
||||
errorf("unexpected object tag %d", tag)
|
||||
}
|
||||
}
|
||||
|
||||
const deltaNewFile = -64 // see cmd/compile/internal/gc/bexport.go
|
||||
|
||||
func (p *importer) pos() token.Pos {
|
||||
if !p.posInfoFormat {
|
||||
return token.NoPos
|
||||
}
|
||||
|
||||
file := p.prevFile
|
||||
line := p.prevLine
|
||||
delta := p.int()
|
||||
line += delta
|
||||
if p.version >= 5 {
|
||||
if delta == deltaNewFile {
|
||||
if n := p.int(); n >= 0 {
|
||||
// file changed
|
||||
file = p.path()
|
||||
line = n
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if delta == 0 {
|
||||
if n := p.int(); n >= 0 {
|
||||
// file changed
|
||||
file = p.prevFile[:n] + p.string()
|
||||
line = p.int()
|
||||
}
|
||||
}
|
||||
}
|
||||
p.prevFile = file
|
||||
p.prevLine = line
|
||||
|
||||
// Synthesize a token.Pos
|
||||
|
||||
// Since we don't know the set of needed file positions, we
|
||||
// reserve maxlines positions per file.
|
||||
const maxlines = 64 * 1024
|
||||
f := p.files[file]
|
||||
if f == nil {
|
||||
f = p.fset.AddFile(file, -1, maxlines)
|
||||
p.files[file] = f
|
||||
// Allocate the fake linebreak indices on first use.
|
||||
// TODO(adonovan): opt: save ~512KB using a more complex scheme?
|
||||
fakeLinesOnce.Do(func() {
|
||||
fakeLines = make([]int, maxlines)
|
||||
for i := range fakeLines {
|
||||
fakeLines[i] = i
|
||||
}
|
||||
})
|
||||
f.SetLines(fakeLines)
|
||||
}
|
||||
|
||||
if line > maxlines {
|
||||
line = 1
|
||||
}
|
||||
|
||||
// Treat the file as if it contained only newlines
|
||||
// and column=1: use the line number as the offset.
|
||||
return f.Pos(line - 1)
|
||||
}
|
||||
|
||||
var (
|
||||
fakeLines []int
|
||||
fakeLinesOnce sync.Once
|
||||
)
|
||||
|
||||
func (p *importer) qualifiedName() (pkg *types.Package, name string) {
|
||||
name = p.string()
|
||||
pkg = p.pkg()
|
||||
return
|
||||
}
|
||||
|
||||
func (p *importer) record(t types.Type) {
|
||||
p.typList = append(p.typList, t)
|
||||
}
|
||||
|
||||
// A dddSlice is a types.Type representing ...T parameters.
|
||||
// It only appears for parameter types and does not escape
|
||||
// the importer.
|
||||
type dddSlice struct {
|
||||
elem types.Type
|
||||
}
|
||||
|
||||
func (t *dddSlice) Underlying() types.Type { return t }
|
||||
func (t *dddSlice) String() string { return "..." + t.elem.String() }
|
||||
|
||||
// parent is the package which declared the type; parent == nil means
|
||||
// the package currently imported. The parent package is needed for
|
||||
// exported struct fields and interface methods which don't contain
|
||||
// explicit package information in the export data.
|
||||
func (p *importer) typ(parent *types.Package) types.Type {
|
||||
// if the type was seen before, i is its index (>= 0)
|
||||
i := p.tagOrIndex()
|
||||
if i >= 0 {
|
||||
return p.typList[i]
|
||||
}
|
||||
|
||||
// otherwise, i is the type tag (< 0)
|
||||
switch i {
|
||||
case namedTag:
|
||||
// read type object
|
||||
pos := p.pos()
|
||||
parent, name := p.qualifiedName()
|
||||
scope := parent.Scope()
|
||||
obj := scope.Lookup(name)
|
||||
|
||||
// if the object doesn't exist yet, create and insert it
|
||||
if obj == nil {
|
||||
obj = types.NewTypeName(pos, parent, name, nil)
|
||||
scope.Insert(obj)
|
||||
}
|
||||
|
||||
if _, ok := obj.(*types.TypeName); !ok {
|
||||
errorf("pkg = %s, name = %s => %s", parent, name, obj)
|
||||
}
|
||||
|
||||
// associate new named type with obj if it doesn't exist yet
|
||||
t0 := types.NewNamed(obj.(*types.TypeName), nil, nil)
|
||||
|
||||
// but record the existing type, if any
|
||||
t := obj.Type().(*types.Named)
|
||||
p.record(t)
|
||||
|
||||
// read underlying type
|
||||
t0.SetUnderlying(p.typ(parent))
|
||||
|
||||
// interfaces don't have associated methods
|
||||
if types.IsInterface(t0) {
|
||||
return t
|
||||
}
|
||||
|
||||
// read associated methods
|
||||
for i := p.int(); i > 0; i-- {
|
||||
// TODO(gri) replace this with something closer to fieldName
|
||||
pos := p.pos()
|
||||
name := p.string()
|
||||
if !exported(name) {
|
||||
p.pkg()
|
||||
}
|
||||
|
||||
recv, _ := p.paramList() // TODO(gri) do we need a full param list for the receiver?
|
||||
params, isddd := p.paramList()
|
||||
result, _ := p.paramList()
|
||||
p.int() // go:nointerface pragma - discarded
|
||||
|
||||
sig := types.NewSignature(recv.At(0), params, result, isddd)
|
||||
t0.AddMethod(types.NewFunc(pos, parent, name, sig))
|
||||
}
|
||||
|
||||
return t
|
||||
|
||||
case arrayTag:
|
||||
t := new(types.Array)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
n := p.int64()
|
||||
*t = *types.NewArray(p.typ(parent), n)
|
||||
return t
|
||||
|
||||
case sliceTag:
|
||||
t := new(types.Slice)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
*t = *types.NewSlice(p.typ(parent))
|
||||
return t
|
||||
|
||||
case dddTag:
|
||||
t := new(dddSlice)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
t.elem = p.typ(parent)
|
||||
return t
|
||||
|
||||
case structTag:
|
||||
t := new(types.Struct)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
*t = *types.NewStruct(p.fieldList(parent))
|
||||
return t
|
||||
|
||||
case pointerTag:
|
||||
t := new(types.Pointer)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
*t = *types.NewPointer(p.typ(parent))
|
||||
return t
|
||||
|
||||
case signatureTag:
|
||||
t := new(types.Signature)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
params, isddd := p.paramList()
|
||||
result, _ := p.paramList()
|
||||
*t = *types.NewSignature(nil, params, result, isddd)
|
||||
return t
|
||||
|
||||
case interfaceTag:
|
||||
// Create a dummy entry in the type list. This is safe because we
|
||||
// cannot expect the interface type to appear in a cycle, as any
|
||||
// such cycle must contain a named type which would have been
|
||||
// first defined earlier.
|
||||
n := len(p.typList)
|
||||
if p.trackAllTypes {
|
||||
p.record(nil)
|
||||
}
|
||||
|
||||
var embeddeds []*types.Named
|
||||
for n := p.int(); n > 0; n-- {
|
||||
p.pos()
|
||||
embeddeds = append(embeddeds, p.typ(parent).(*types.Named))
|
||||
}
|
||||
|
||||
t := types.NewInterface(p.methodList(parent), embeddeds)
|
||||
p.interfaceList = append(p.interfaceList, t)
|
||||
if p.trackAllTypes {
|
||||
p.typList[n] = t
|
||||
}
|
||||
return t
|
||||
|
||||
case mapTag:
|
||||
t := new(types.Map)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
key := p.typ(parent)
|
||||
val := p.typ(parent)
|
||||
*t = *types.NewMap(key, val)
|
||||
return t
|
||||
|
||||
case chanTag:
|
||||
t := new(types.Chan)
|
||||
if p.trackAllTypes {
|
||||
p.record(t)
|
||||
}
|
||||
|
||||
var dir types.ChanDir
|
||||
// tag values must match the constants in cmd/compile/internal/gc/go.go
|
||||
switch d := p.int(); d {
|
||||
case 1 /* Crecv */ :
|
||||
dir = types.RecvOnly
|
||||
case 2 /* Csend */ :
|
||||
dir = types.SendOnly
|
||||
case 3 /* Cboth */ :
|
||||
dir = types.SendRecv
|
||||
default:
|
||||
errorf("unexpected channel dir %d", d)
|
||||
}
|
||||
val := p.typ(parent)
|
||||
*t = *types.NewChan(dir, val)
|
||||
return t
|
||||
|
||||
default:
|
||||
errorf("unexpected type tag %d", i) // panics
|
||||
panic("unreachable")
|
||||
}
|
||||
}
|
||||
|
||||
func (p *importer) fieldList(parent *types.Package) (fields []*types.Var, tags []string) {
|
||||
if n := p.int(); n > 0 {
|
||||
fields = make([]*types.Var, n)
|
||||
tags = make([]string, n)
|
||||
for i := range fields {
|
||||
fields[i], tags[i] = p.field(parent)
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (p *importer) field(parent *types.Package) (*types.Var, string) {
|
||||
pos := p.pos()
|
||||
pkg, name, alias := p.fieldName(parent)
|
||||
typ := p.typ(parent)
|
||||
tag := p.string()
|
||||
|
||||
anonymous := false
|
||||
if name == "" {
|
||||
// anonymous field - typ must be T or *T and T must be a type name
|
||||
switch typ := deref(typ).(type) {
|
||||
case *types.Basic: // basic types are named types
|
||||
pkg = nil // // objects defined in Universe scope have no package
|
||||
name = typ.Name()
|
||||
case *types.Named:
|
||||
name = typ.Obj().Name()
|
||||
default:
|
||||
errorf("named base type expected")
|
||||
}
|
||||
anonymous = true
|
||||
} else if alias {
|
||||
// anonymous field: we have an explicit name because it's an alias
|
||||
anonymous = true
|
||||
}
|
||||
|
||||
return types.NewField(pos, pkg, name, typ, anonymous), tag
|
||||
}
|
||||
|
||||
func (p *importer) methodList(parent *types.Package) (methods []*types.Func) {
|
||||
if n := p.int(); n > 0 {
|
||||
methods = make([]*types.Func, n)
|
||||
for i := range methods {
|
||||
methods[i] = p.method(parent)
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (p *importer) method(parent *types.Package) *types.Func {
|
||||
pos := p.pos()
|
||||
pkg, name, _ := p.fieldName(parent)
|
||||
params, isddd := p.paramList()
|
||||
result, _ := p.paramList()
|
||||
sig := types.NewSignature(nil, params, result, isddd)
|
||||
return types.NewFunc(pos, pkg, name, sig)
|
||||
}
|
||||
|
||||
func (p *importer) fieldName(parent *types.Package) (pkg *types.Package, name string, alias bool) {
|
||||
name = p.string()
|
||||
pkg = parent
|
||||
if pkg == nil {
|
||||
// use the imported package instead
|
||||
pkg = p.pkgList[0]
|
||||
}
|
||||
if p.version == 0 && name == "_" {
|
||||
// version 0 didn't export a package for _ fields
|
||||
return
|
||||
}
|
||||
switch name {
|
||||
case "":
|
||||
// 1) field name matches base type name and is exported: nothing to do
|
||||
case "?":
|
||||
// 2) field name matches base type name and is not exported: need package
|
||||
name = ""
|
||||
pkg = p.pkg()
|
||||
case "@":
|
||||
// 3) field name doesn't match type name (alias)
|
||||
name = p.string()
|
||||
alias = true
|
||||
fallthrough
|
||||
default:
|
||||
if !exported(name) {
|
||||
pkg = p.pkg()
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (p *importer) paramList() (*types.Tuple, bool) {
|
||||
n := p.int()
|
||||
if n == 0 {
|
||||
return nil, false
|
||||
}
|
||||
// negative length indicates unnamed parameters
|
||||
named := true
|
||||
if n < 0 {
|
||||
n = -n
|
||||
named = false
|
||||
}
|
||||
// n > 0
|
||||
params := make([]*types.Var, n)
|
||||
isddd := false
|
||||
for i := range params {
|
||||
params[i], isddd = p.param(named)
|
||||
}
|
||||
return types.NewTuple(params...), isddd
|
||||
}
|
||||
|
||||
func (p *importer) param(named bool) (*types.Var, bool) {
|
||||
t := p.typ(nil)
|
||||
td, isddd := t.(*dddSlice)
|
||||
if isddd {
|
||||
t = types.NewSlice(td.elem)
|
||||
}
|
||||
|
||||
var pkg *types.Package
|
||||
var name string
|
||||
if named {
|
||||
name = p.string()
|
||||
if name == "" {
|
||||
errorf("expected named parameter")
|
||||
}
|
||||
if name != "_" {
|
||||
pkg = p.pkg()
|
||||
}
|
||||
if i := strings.Index(name, "·"); i > 0 {
|
||||
name = name[:i] // cut off gc-specific parameter numbering
|
||||
}
|
||||
}
|
||||
|
||||
// read and discard compiler-specific info
|
||||
p.string()
|
||||
|
||||
return types.NewVar(token.NoPos, pkg, name, t), isddd
|
||||
}
|
||||
|
||||
func exported(name string) bool {
|
||||
ch, _ := utf8.DecodeRuneInString(name)
|
||||
return unicode.IsUpper(ch)
|
||||
}
|
||||
|
||||
func (p *importer) value() constant.Value {
|
||||
switch tag := p.tagOrIndex(); tag {
|
||||
case falseTag:
|
||||
return constant.MakeBool(false)
|
||||
case trueTag:
|
||||
return constant.MakeBool(true)
|
||||
case int64Tag:
|
||||
return constant.MakeInt64(p.int64())
|
||||
case floatTag:
|
||||
return p.float()
|
||||
case complexTag:
|
||||
re := p.float()
|
||||
im := p.float()
|
||||
return constant.BinaryOp(re, token.ADD, constant.MakeImag(im))
|
||||
case stringTag:
|
||||
return constant.MakeString(p.string())
|
||||
case unknownTag:
|
||||
return constant.MakeUnknown()
|
||||
default:
|
||||
errorf("unexpected value tag %d", tag) // panics
|
||||
panic("unreachable")
|
||||
}
|
||||
}
|
||||
|
||||
func (p *importer) float() constant.Value {
|
||||
sign := p.int()
|
||||
if sign == 0 {
|
||||
return constant.MakeInt64(0)
|
||||
}
|
||||
|
||||
exp := p.int()
|
||||
mant := []byte(p.string()) // big endian
|
||||
|
||||
// remove leading 0's if any
|
||||
for len(mant) > 0 && mant[0] == 0 {
|
||||
mant = mant[1:]
|
||||
}
|
||||
|
||||
// convert to little endian
|
||||
// TODO(gri) go/constant should have a more direct conversion function
|
||||
// (e.g., once it supports a big.Float based implementation)
|
||||
for i, j := 0, len(mant)-1; i < j; i, j = i+1, j-1 {
|
||||
mant[i], mant[j] = mant[j], mant[i]
|
||||
}
|
||||
|
||||
// adjust exponent (constant.MakeFromBytes creates an integer value,
|
||||
// but mant represents the mantissa bits such that 0.5 <= mant < 1.0)
|
||||
exp -= len(mant) << 3
|
||||
if len(mant) > 0 {
|
||||
for msd := mant[len(mant)-1]; msd&0x80 == 0; msd <<= 1 {
|
||||
exp++
|
||||
}
|
||||
}
|
||||
|
||||
x := constant.MakeFromBytes(mant)
|
||||
switch {
|
||||
case exp < 0:
|
||||
d := constant.Shift(constant.MakeInt64(1), token.SHL, uint(-exp))
|
||||
x = constant.BinaryOp(x, token.QUO, d)
|
||||
case exp > 0:
|
||||
x = constant.Shift(x, token.SHL, uint(exp))
|
||||
}
|
||||
|
||||
if sign < 0 {
|
||||
x = constant.UnaryOp(token.SUB, x, 0)
|
||||
}
|
||||
return x
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Low-level decoders
|
||||
|
||||
func (p *importer) tagOrIndex() int {
|
||||
if p.debugFormat {
|
||||
p.marker('t')
|
||||
}
|
||||
|
||||
return int(p.rawInt64())
|
||||
}
|
||||
|
||||
func (p *importer) int() int {
|
||||
x := p.int64()
|
||||
if int64(int(x)) != x {
|
||||
errorf("exported integer too large")
|
||||
}
|
||||
return int(x)
|
||||
}
|
||||
|
||||
func (p *importer) int64() int64 {
|
||||
if p.debugFormat {
|
||||
p.marker('i')
|
||||
}
|
||||
|
||||
return p.rawInt64()
|
||||
}
|
||||
|
||||
func (p *importer) path() string {
|
||||
if p.debugFormat {
|
||||
p.marker('p')
|
||||
}
|
||||
// if the path was seen before, i is its index (>= 0)
|
||||
// (the empty string is at index 0)
|
||||
i := p.rawInt64()
|
||||
if i >= 0 {
|
||||
return p.pathList[i]
|
||||
}
|
||||
// otherwise, i is the negative path length (< 0)
|
||||
a := make([]string, -i)
|
||||
for n := range a {
|
||||
a[n] = p.string()
|
||||
}
|
||||
s := strings.Join(a, "/")
|
||||
p.pathList = append(p.pathList, s)
|
||||
return s
|
||||
}
|
||||
|
||||
func (p *importer) string() string {
|
||||
if p.debugFormat {
|
||||
p.marker('s')
|
||||
}
|
||||
// if the string was seen before, i is its index (>= 0)
|
||||
// (the empty string is at index 0)
|
||||
i := p.rawInt64()
|
||||
if i >= 0 {
|
||||
return p.strList[i]
|
||||
}
|
||||
// otherwise, i is the negative string length (< 0)
|
||||
if n := int(-i); n <= cap(p.buf) {
|
||||
p.buf = p.buf[:n]
|
||||
} else {
|
||||
p.buf = make([]byte, n)
|
||||
}
|
||||
for i := range p.buf {
|
||||
p.buf[i] = p.rawByte()
|
||||
}
|
||||
s := string(p.buf)
|
||||
p.strList = append(p.strList, s)
|
||||
return s
|
||||
}
|
||||
|
||||
func (p *importer) marker(want byte) {
|
||||
if got := p.rawByte(); got != want {
|
||||
errorf("incorrect marker: got %c; want %c (pos = %d)", got, want, p.read)
|
||||
}
|
||||
|
||||
pos := p.read
|
||||
if n := int(p.rawInt64()); n != pos {
|
||||
errorf("incorrect position: got %d; want %d", n, pos)
|
||||
}
|
||||
}
|
||||
|
||||
// rawInt64 should only be used by low-level decoders.
|
||||
func (p *importer) rawInt64() int64 {
|
||||
i, err := binary.ReadVarint(p)
|
||||
if err != nil {
|
||||
errorf("read error: %v", err)
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
// rawStringln should only be used to read the initial version string.
|
||||
func (p *importer) rawStringln(b byte) string {
|
||||
p.buf = p.buf[:0]
|
||||
for b != '\n' {
|
||||
p.buf = append(p.buf, b)
|
||||
b = p.rawByte()
|
||||
}
|
||||
return string(p.buf)
|
||||
}
|
||||
|
||||
// needed for binary.ReadVarint in rawInt64
|
||||
func (p *importer) ReadByte() (byte, error) {
|
||||
return p.rawByte(), nil
|
||||
}
|
||||
|
||||
// byte is the bottleneck interface for reading p.data.
|
||||
// It unescapes '|' 'S' to '$' and '|' '|' to '|'.
|
||||
// rawByte should only be used by low-level decoders.
|
||||
func (p *importer) rawByte() byte {
|
||||
b := p.data[0]
|
||||
r := 1
|
||||
if b == '|' {
|
||||
b = p.data[1]
|
||||
r = 2
|
||||
switch b {
|
||||
case 'S':
|
||||
b = '$'
|
||||
case '|':
|
||||
// nothing to do
|
||||
default:
|
||||
errorf("unexpected escape sequence in export data")
|
||||
}
|
||||
}
|
||||
p.data = p.data[r:]
|
||||
p.read += r
|
||||
return b
|
||||
|
||||
}
|
||||
|
||||
// ----------------------------------------------------------------------------
|
||||
// Export format
|
||||
|
||||
// Tags. Must be < 0.
|
||||
const (
|
||||
// Objects
|
||||
packageTag = -(iota + 1)
|
||||
constTag
|
||||
typeTag
|
||||
varTag
|
||||
funcTag
|
||||
endTag
|
||||
|
||||
// Types
|
||||
namedTag
|
||||
arrayTag
|
||||
sliceTag
|
||||
dddTag
|
||||
structTag
|
||||
pointerTag
|
||||
signatureTag
|
||||
interfaceTag
|
||||
mapTag
|
||||
chanTag
|
||||
|
||||
// Values
|
||||
falseTag
|
||||
trueTag
|
||||
int64Tag
|
||||
floatTag
|
||||
fractionTag // not used by gc
|
||||
complexTag
|
||||
stringTag
|
||||
nilTag // only used by gc (appears in exported inlined function bodies)
|
||||
unknownTag // not used by gc (only appears in packages with errors)
|
||||
|
||||
// Type aliases
|
||||
aliasTag
|
||||
)
|
||||
|
||||
var predeclared = []types.Type{
|
||||
// basic types
|
||||
types.Typ[types.Bool],
|
||||
types.Typ[types.Int],
|
||||
types.Typ[types.Int8],
|
||||
types.Typ[types.Int16],
|
||||
types.Typ[types.Int32],
|
||||
types.Typ[types.Int64],
|
||||
types.Typ[types.Uint],
|
||||
types.Typ[types.Uint8],
|
||||
types.Typ[types.Uint16],
|
||||
types.Typ[types.Uint32],
|
||||
types.Typ[types.Uint64],
|
||||
types.Typ[types.Uintptr],
|
||||
types.Typ[types.Float32],
|
||||
types.Typ[types.Float64],
|
||||
types.Typ[types.Complex64],
|
||||
types.Typ[types.Complex128],
|
||||
types.Typ[types.String],
|
||||
|
||||
// basic type aliases
|
||||
types.Universe.Lookup("byte").Type(),
|
||||
types.Universe.Lookup("rune").Type(),
|
||||
|
||||
// error
|
||||
types.Universe.Lookup("error").Type(),
|
||||
|
||||
// untyped types
|
||||
types.Typ[types.UntypedBool],
|
||||
types.Typ[types.UntypedInt],
|
||||
types.Typ[types.UntypedRune],
|
||||
types.Typ[types.UntypedFloat],
|
||||
types.Typ[types.UntypedComplex],
|
||||
types.Typ[types.UntypedString],
|
||||
types.Typ[types.UntypedNil],
|
||||
|
||||
// package unsafe
|
||||
types.Typ[types.UnsafePointer],
|
||||
|
||||
// invalid type
|
||||
types.Typ[types.Invalid], // only appears in packages with errors
|
||||
|
||||
// used internally by gc; never used by this package or in .a files
|
||||
anyType{},
|
||||
}
|
||||
|
||||
type anyType struct{}
|
||||
|
||||
func (t anyType) Underlying() types.Type { return t }
|
||||
func (t anyType) String() string { return "any" }
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
// 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.
|
||||
|
||||
// This file is a copy of $GOROOT/src/go/internal/gcimporter/exportdata.go.
|
||||
|
||||
// This file implements FindExportData.
|
||||
|
||||
package gcimporter
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"fmt"
|
||||
"io"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func readGopackHeader(r *bufio.Reader) (name string, size int, err error) {
|
||||
// See $GOROOT/include/ar.h.
|
||||
hdr := make([]byte, 16+12+6+6+8+10+2)
|
||||
_, err = io.ReadFull(r, hdr)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
// leave for debugging
|
||||
if false {
|
||||
fmt.Printf("header: %s", hdr)
|
||||
}
|
||||
s := strings.TrimSpace(string(hdr[16+12+6+6+8:][:10]))
|
||||
size, err = strconv.Atoi(s)
|
||||
if err != nil || hdr[len(hdr)-2] != '`' || hdr[len(hdr)-1] != '\n' {
|
||||
err = fmt.Errorf("invalid archive header")
|
||||
return
|
||||
}
|
||||
name = strings.TrimSpace(string(hdr[:16]))
|
||||
return
|
||||
}
|
||||
|
||||
// FindExportData positions the reader r at the beginning of the
|
||||
// export data section of an underlying GC-created object/archive
|
||||
// file by reading from it. The reader must be positioned at the
|
||||
// start of the file before calling this function. The hdr result
|
||||
// is the string before the export data, either "$$" or "$$B".
|
||||
//
|
||||
func FindExportData(r *bufio.Reader) (hdr string, err error) {
|
||||
// Read first line to make sure this is an object file.
|
||||
line, err := r.ReadSlice('\n')
|
||||
if err != nil {
|
||||
err = fmt.Errorf("can't find export data (%v)", err)
|
||||
return
|
||||
}
|
||||
|
||||
if string(line) == "!<arch>\n" {
|
||||
// Archive file. Scan to __.PKGDEF.
|
||||
var name string
|
||||
if name, _, err = readGopackHeader(r); err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// First entry should be __.PKGDEF.
|
||||
if name != "__.PKGDEF" {
|
||||
err = fmt.Errorf("go archive is missing __.PKGDEF")
|
||||
return
|
||||
}
|
||||
|
||||
// Read first line of __.PKGDEF data, so that line
|
||||
// is once again the first line of the input.
|
||||
if line, err = r.ReadSlice('\n'); err != nil {
|
||||
err = fmt.Errorf("can't find export data (%v)", err)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Now at __.PKGDEF in archive or still at beginning of file.
|
||||
// Either way, line should begin with "go object ".
|
||||
if !strings.HasPrefix(string(line), "go object ") {
|
||||
err = fmt.Errorf("not a Go object file")
|
||||
return
|
||||
}
|
||||
|
||||
// Skip over object header to export data.
|
||||
// Begins after first line starting with $$.
|
||||
for line[0] != '$' {
|
||||
if line, err = r.ReadSlice('\n'); err != nil {
|
||||
err = fmt.Errorf("can't find export data (%v)", err)
|
||||
return
|
||||
}
|
||||
}
|
||||
hdr = string(line)
|
||||
|
||||
return
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,13 @@
|
|||
// Copyright 2017 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.
|
||||
|
||||
// +build !go1.9
|
||||
|
||||
package gcimporter
|
||||
|
||||
import "go/types"
|
||||
|
||||
func isAlias(obj *types.TypeName) bool {
|
||||
return false // there are no type aliases before Go 1.9
|
||||
}
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
// Copyright 2017 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.
|
||||
|
||||
// +build go1.9
|
||||
|
||||
package gcimporter
|
||||
|
||||
import "go/types"
|
||||
|
||||
func isAlias(obj *types.TypeName) bool {
|
||||
return obj.IsAlias()
|
||||
}
|
||||
Loading…
Reference in New Issue