Giant blob of minor changes

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201105173854-bc9fc8d8c4bc / go / internal / gccgoimporter / gccgoinstallation.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/internal/gccgoimporter/gccgoinstallation.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/internal/gccgoimporter/gccgoinstallation.go
new file mode 100644 (file)
index 0000000..fac4100
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201105173854-bc9fc8d8c4bc/go/internal/gccgoimporter/gccgoinstallation.go
@@ -0,0 +1,100 @@
+// Copyright 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.
+
+// Except for this comment, this file is a verbatim copy of the file
+// with the same name in $GOROOT/src/go/internal/gccgoimporter.
+
+package gccgoimporter
+
+import (
+       "bufio"
+       "go/types"
+       "os"
+       "os/exec"
+       "path/filepath"
+       "strings"
+)
+
+// Information about a specific installation of gccgo.
+type GccgoInstallation struct {
+       // Version of gcc (e.g. 4.8.0).
+       GccVersion string
+
+       // Target triple (e.g. x86_64-unknown-linux-gnu).
+       TargetTriple string
+
+       // Built-in library paths used by this installation.
+       LibPaths []string
+}
+
+// Ask the driver at the given path for information for this GccgoInstallation.
+// The given arguments are passed directly to the call of the driver.
+func (inst *GccgoInstallation) InitFromDriver(gccgoPath string, args ...string) (err error) {
+       argv := append([]string{"-###", "-S", "-x", "go", "-"}, args...)
+       cmd := exec.Command(gccgoPath, argv...)
+       stderr, err := cmd.StderrPipe()
+       if err != nil {
+               return
+       }
+
+       err = cmd.Start()
+       if err != nil {
+               return
+       }
+
+       scanner := bufio.NewScanner(stderr)
+       for scanner.Scan() {
+               line := scanner.Text()
+               switch {
+               case strings.HasPrefix(line, "Target: "):
+                       inst.TargetTriple = line[8:]
+
+               case line[0] == ' ':
+                       args := strings.Fields(line)
+                       for _, arg := range args[1:] {
+                               if strings.HasPrefix(arg, "-L") {
+                                       inst.LibPaths = append(inst.LibPaths, arg[2:])
+                               }
+                       }
+               }
+       }
+
+       argv = append([]string{"-dumpversion"}, args...)
+       stdout, err := exec.Command(gccgoPath, argv...).Output()
+       if err != nil {
+               return
+       }
+       inst.GccVersion = strings.TrimSpace(string(stdout))
+
+       return
+}
+
+// Return the list of export search paths for this GccgoInstallation.
+func (inst *GccgoInstallation) SearchPaths() (paths []string) {
+       for _, lpath := range inst.LibPaths {
+               spath := filepath.Join(lpath, "go", inst.GccVersion)
+               fi, err := os.Stat(spath)
+               if err != nil || !fi.IsDir() {
+                       continue
+               }
+               paths = append(paths, spath)
+
+               spath = filepath.Join(spath, inst.TargetTriple)
+               fi, err = os.Stat(spath)
+               if err != nil || !fi.IsDir() {
+                       continue
+               }
+               paths = append(paths, spath)
+       }
+
+       paths = append(paths, inst.LibPaths...)
+
+       return
+}
+
+// Return an importer that searches incpaths followed by the gcc installation's
+// built-in search paths and the current directory.
+func (inst *GccgoInstallation) GetImporter(incpaths []string, initmap map[*types.Package]InitData) Importer {
+       return GetImporter(append(append(incpaths, inst.SearchPaths()...), "."), initmap)
+}