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authorLibravatar dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>2023-03-06 08:09:17 +0000
committerLibravatar GitHub <noreply@github.com>2023-03-06 08:09:17 +0000
commit06524ac25965b171d156c81ec7e480fb812d986b (patch)
tree2cead7c39fb986a608f483461762aea2bf1df857 /vendor/golang.org/x/tools/go/gcexportdata
parent[chore] Print human readable config (#1589) (diff)
downloadgotosocial-06524ac25965b171d156c81ec7e480fb812d986b.tar.xz
[chore]: Bump golang.org/x/text from 0.7.0 to 0.8.0 (#1594)
Bumps [golang.org/x/text](https://github.com/golang/text) from 0.7.0 to 0.8.0. - [Release notes](https://github.com/golang/text/releases) - [Commits](https://github.com/golang/text/compare/v0.7.0...v0.8.0) --- updated-dependencies: - dependency-name: golang.org/x/text dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Diffstat (limited to 'vendor/golang.org/x/tools/go/gcexportdata')
-rw-r--r--vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go24
1 files changed, 15 insertions, 9 deletions
diff --git a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go
index 620446207..165ede0f8 100644
--- a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go
+++ b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go
@@ -27,7 +27,6 @@ import (
"go/token"
"go/types"
"io"
- "io/ioutil"
"os/exec"
"golang.org/x/tools/internal/gcimporter"
@@ -85,6 +84,19 @@ func NewReader(r io.Reader) (io.Reader, error) {
}
}
+// readAll works the same way as io.ReadAll, but avoids allocations and copies
+// by preallocating a byte slice of the necessary size if the size is known up
+// front. This is always possible when the input is an archive. In that case,
+// NewReader will return the known size using an io.LimitedReader.
+func readAll(r io.Reader) ([]byte, error) {
+ if lr, ok := r.(*io.LimitedReader); ok {
+ data := make([]byte, lr.N)
+ _, err := io.ReadFull(lr, data)
+ return data, err
+ }
+ return io.ReadAll(r)
+}
+
// Read reads export data from in, decodes it, and returns type
// information for the package.
//
@@ -102,7 +114,7 @@ func NewReader(r io.Reader) (io.Reader, error) {
//
// 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)
+ data, err := readAll(in)
if err != nil {
return nil, fmt.Errorf("reading export data for %q: %v", path, err)
}
@@ -111,12 +123,6 @@ func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package,
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))
- }
-
// The indexed export format starts with an 'i'; the older
// binary export format starts with a 'c', 'd', or 'v'
// (from "version"). Select appropriate importer.
@@ -165,7 +171,7 @@ func Write(out io.Writer, fset *token.FileSet, pkg *types.Package) error {
//
// Experimental: This API is experimental and may change in the future.
func ReadBundle(in io.Reader, fset *token.FileSet, imports map[string]*types.Package) ([]*types.Package, error) {
- data, err := ioutil.ReadAll(in)
+ data, err := readAll(in)
if err != nil {
return nil, fmt.Errorf("reading export bundle: %v", err)
}