diff options
Diffstat (limited to 'compiler_wrapper/iwyu_flag.go')
-rw-r--r-- | compiler_wrapper/iwyu_flag.go | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/compiler_wrapper/iwyu_flag.go b/compiler_wrapper/iwyu_flag.go deleted file mode 100644 index c1e6af65..00000000 --- a/compiler_wrapper/iwyu_flag.go +++ /dev/null @@ -1,155 +0,0 @@ -// Copyright 2022 The ChromiumOS Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -package main - -import ( - "bufio" - "bytes" - "fmt" - "path/filepath" - "strings" -) - -type useIWYUMode int - -const iwyuCrashSubstring = "PLEASE submit a bug report" - -const ( - iwyuModeNone useIWYUMode = iota - iwyuModeAll - iwyuModeError -) - -var srcFileSuffixes = []string{ - ".c", - ".cc", - ".cpp", - ".C", - ".cxx", - ".c++", -} - -func findWithIWYUFlag(args []builderArg) (string, []builderArg) { - for i := range args { - if args[i].value == "--with-iwyu" { - args = append(args[:i], args[i+1:]...) - return "1", args - } - } - return "", args -} - -func processIWYUFlags(builder *commandBuilder) (cSrcFile string, iwyuFlags []string, mode useIWYUMode) { - builder.transformArgs(func(arg builderArg) string { - const prefix = "-iwyu-flag=" - if !strings.HasPrefix(arg.value, prefix) { - return arg.value - } - - iwyuFlags = append(iwyuFlags, arg.value[len(prefix):]) - return "" - }) - - withIWYU, _ := builder.env.getenv("WITH_IWYU") - if withIWYU == "" { - withIWYU, builder.args = findWithIWYUFlag(builder.args) - if withIWYU == "" { - return "", iwyuFlags, iwyuModeNone - } - } - - cSrcFile = "" - lastArg := "" - for _, arg := range builder.args { - if lastArg != "-o" { - for _, suffix := range srcFileSuffixes { - if strings.HasSuffix(arg.value, suffix) { - cSrcFile = arg.value - break - } - } - } - lastArg = arg.value - } - - if cSrcFile == "" { - return "", iwyuFlags, iwyuModeNone - } - - if withIWYU != "1" { - return "", iwyuFlags, iwyuModeError - } - - return cSrcFile, iwyuFlags, iwyuModeAll -} - -func calcIWYUInvocation(env env, clangCmd *command, cSrcFile string, iwyuFlags ...string) (*command, error) { - resourceDir, err := getClangResourceDir(env, clangCmd.Path) - if err != nil { - return nil, err - } - - iwyuPath := filepath.Join(filepath.Dir(clangCmd.Path), "include-what-you-use") - args := append([]string{}, iwyuFlags...) - args = append(args, "-resource-dir="+resourceDir) - args = append(args, clangCmd.Args...) - - for i := 0; i < len(args); i++ { - for j := 0; j < len(srcFileSuffixes); j++ { - if strings.HasSuffix(args[i], srcFileSuffixes[j]) { - args = append(args[:i], args[i+1:]...) - break - } - } - } - args = append(args, cSrcFile) - - return &command{ - Path: iwyuPath, - Args: args, - EnvUpdates: clangCmd.EnvUpdates, - }, nil -} - -func runIWYU(env env, clangCmd *command, cSrcFile string, extraIWYUFlags []string) error { - extraIWYUFlags = append(extraIWYUFlags, "-Xiwyu", "--mapping_file=/usr/share/include-what-you-use/libcxx.imp", "-Xiwyu", "--no_fwd_decls") - iwyuCmd, err := calcIWYUInvocation(env, clangCmd, cSrcFile, extraIWYUFlags...) - if err != nil { - return fmt.Errorf("calculating include-what-you-use invocation: %v", err) - } - - // Note: We pass nil as stdin as we checked before that the compiler - // was invoked with a source file argument. - var stderr bytes.Buffer - stderr_writer := bufio.NewWriter(&stderr) - exitCode, err := wrapSubprocessErrorWithSourceLoc(iwyuCmd, - env.run(iwyuCmd, nil, nil, stderr_writer)) - stderr_ := stderr.String() - fmt.Fprintln(env.stderr(), stderr_) - - if err == nil && exitCode != 0 { - // Note: We continue on purpose when include-what-you-use fails - // to maintain compatibility with the previous wrapper. - fmt.Fprintln(env.stderr(), "include-what-you-use failed") - } - - var path strings.Builder - path.WriteString(strings.TrimSuffix(iwyuCmd.Path, "include-what-you-use")) - path.WriteString("fix_includes.py") - fixIncludesCmd := &command{ - Path: path.String(), - Args: []string{"--nocomment"}, - EnvUpdates: clangCmd.EnvUpdates, - } - - exitCode, err = wrapSubprocessErrorWithSourceLoc(fixIncludesCmd, - env.run(fixIncludesCmd, strings.NewReader(stderr_), env.stdout(), env.stderr())) - if err == nil && exitCode != 0 { - // Note: We continue on purpose when include-what-you-use fails - // to maintain compatibility with the previous wrapper. - fmt.Fprint(env.stderr(), "include-what-you-use failed") - } - return nil -} |