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cmd/guru: if query file is not beneath GOPATH, treat it as a package

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This allows type-based guru queries to work on arbitrary files at the
root or even outside of a GOPATH workspace (as "go run foo.go" does).

Fixes golang/go#15797

Change-Id: I2be28f7259448e6398aae84d6ae7e71d8649967a
Reviewed-on: https://go-review.googlesource.com/30451
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Alan Donovan 2016-10-05 14:15:28 -04:00
parent 73d2e795b8
commit 27f88d9b7a
1 changed files with 28 additions and 25 deletions
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53
cmd/guru/guru.go
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@ -173,32 +173,35 @@ func importQueryPackage(pos string, conf *loader.Config) (string, error) {
_, importPath, err := guessImportPath(filename, conf.Build)
if err != nil {
return "", err // can't find GOPATH dir
}
// Can't find GOPATH dir.
// Treat the query file as its own package.
importPath = "command-line-arguments"
conf.CreateFromFilenames(importPath, filename)
} else {
// Check that it's possible to load the queried package.
// (e.g. guru tests contain different 'package' decls in same dir.)
// Keep consistent with logic in loader/util.go!
cfg2 := *conf.Build
cfg2.CgoEnabled = false
bp, err := cfg2.Import(importPath, "", 0)
if err != nil {
return "", err // no files for package
}
// Check that it's possible to load the queried package.
// (e.g. guru tests contain different 'package' decls in same dir.)
// Keep consistent with logic in loader/util.go!
cfg2 := *conf.Build
cfg2.CgoEnabled = false
bp, err := cfg2.Import(importPath, "", 0)
if err != nil {
return "", err // no files for package
}
switch pkgContainsFile(bp, filename) {
case 'T':
conf.ImportWithTests(importPath)
case 'X':
conf.ImportWithTests(importPath)
importPath += "_test" // for TypeCheckFuncBodies
case 'G':
conf.Import(importPath)
default:
// This happens for ad-hoc packages like
// $GOROOT/src/net/http/triv.go.
return "", fmt.Errorf("package %q doesn't contain file %s",
importPath, filename)
switch pkgContainsFile(bp, filename) {
case 'T':
conf.ImportWithTests(importPath)
case 'X':
conf.ImportWithTests(importPath)
importPath += "_test" // for TypeCheckFuncBodies
case 'G':
conf.Import(importPath)
default:
// This happens for ad-hoc packages like
// $GOROOT/src/net/http/triv.go.
return "", fmt.Errorf("package %q doesn't contain file %s",
importPath, filename)
}
}
conf.TypeCheckFuncBodies = func(p string) bool { return p == importPath }