}
		if modPath == pkg {
			break
		}
		pkg = path.Dir(pkg)
		dst = filepath.Dir(dst)
		src = filepath.Dir(src)
	}
}

// metaPrefixes is the list of metadata file prefixes.
// Vendoring copies metadata files from parents of copied directories.
// Note that this list could be arbitrarily extended, and it is longer
// in other tools (such as godep or dep). By using this limited set of

				return false
			}
			// Inside pkg/tool/$GOOS_$GOARCH, discard helper tools.
			switch strings.TrimSuffix(path.Base(name), ".exe") {
			case "api", "dist", "distpack", "metadata":
				return false
			}
		}
		return true
	})

	// Add go and gofmt to bin, using cross-compiled binaries
	// if this is a cross-compiled distribution.
	binExes := []string{
		"go",

		return nil, fmt.Errorf("version %s is not canonical", version)
	}

	if module.IsPseudoVersion(version) {
		// findDir ignores the metadata encoded in a pseudo-version,
		// only using the revision at the end.
		// Invoke Stat to verify the metadata explicitly so we don't return
		// a bogus file for an invalid version.
		_, err := r.Stat(ctx, version)
		if err != nil {
			return nil, err
		}
	}

	WrappedFunc *Func

	// WasmImport is used by the //go:wasmimport directive to store info about
	// a WebAssembly function import.
	WasmImport *WasmImport
}

// WasmImport stores metadata associated with the //go:wasmimport pragma.
type WasmImport struct {
	Module string
	Name   string
}

// NewFunc returns a new Func with the given name and type.
//

		allTestImports = append(allTestImports, imports...)
		allTestImports = append(allTestImports, ximports...)
		setToolFlags(allTestImports...)

		// Do initial scan for metadata needed for writing _testmain.go
		// Use that metadata to update the list of imports for package main.
		// The list of imports is used by recompileForTest and by the loop
		// afterward that gathers t.Cover information.
		t, err := loadTestFuncs(p)

			}
			// Add a fileinfo for the overlaid file, so that it has
			// the original file's name, but the overlaid file's metadata.
			files[name] = fakeFile{name, fi}
		}
	}
	sortedFiles := diskfis[:0]
	for _, f := range files {
		sortedFiles = append(sortedFiles, f)
	}