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2026-03-30all: fix some minor issues in the commentscuishuang
Change-Id: If6c304efac7a46a9718cdc63ded3d98a26a3a831 Reviewed-on: https://go-review.googlesource.com/c/go/+/760700 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Auto-Submit: Robert Griesemer <gri@google.com> Reviewed-by: Neal Patel <nealpatel@google.com> Reviewed-by: Fred Sauer <fredsa@google.com> Reviewed-by: Junyang Shao <shaojunyang@google.com> Reviewed-by: Robert Griesemer <gri@google.com>
2026-02-13encoding/json/v2: dual support errors.ErrUnsupported and SkipFuncJoe Tsai
This change supports both errors.ErrUnsupported and SkipFunc. In a future change, we will remove SkipFunc entirely in favor of using errors.ErrUnsupported, which exists for a similar pupose. Updates #74324 Change-Id: I5f1ada8e3914513d7d23c504f5965ca8dd95ad18 Reviewed-on: https://go-review.googlesource.com/c/go/+/745040 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Damien Neil <dneil@google.com> Reviewed-by: Junyang Shao <shaojunyang@google.com> Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
2025-10-24encoding/json/v2: fix typo in documentation about errors.AsTypeJoe Tsai
CL 708495 mass migrated the stdlib to use errors.AsType. It rewrote the documentation, but uses the non-pointer type of SemanticError or SyntacticError, which is invalid since the Error method is declared on the pointer receiver. Also, call errors.AsType on a separate line for readability. Change-Id: I2eaf59614e2b58aa4bc8669ab81ce64168c54f13 Reviewed-on: https://go-review.googlesource.com/c/go/+/714660 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com> Auto-Submit: Joseph Tsai <joetsai@digital-static.net> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-10-13encoding/json/v2: report EOF for top-level values in UnmarshalDecodeJoe Tsai
The fully streaming UnmarshalJSONFrom method and UnmarshalFromFunc introduce an edge case where they can encounter EOF in the stream, where it should be reported upstream as EOF rather than ErrUnexpectedEOF or be wrapped within a SemanticError. This is not possible with other unmarshal methods since the "json" package would read the appropriate JSON value before calling the custom method or function. To avoid custom unmarshal methods from encountering EOF, check whether the stream is already at EOF for top-level values before calling the custom method. Also, when wrapping EOF within a SemanticError, convert it to ErrUnexpectedEOF to better indicate that this is unexpected. Fixes #75802 Change-Id: I001396734b7e95b5337f77b71326284974ee730a Reviewed-on: https://go-review.googlesource.com/c/go/+/710877 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Carlos Amedee <carlos@golang.org>
2025-10-13all: replace calls to errors.As with errors.AsTypeJulien Cretel
This change replaces most occurrences (in code as well as in comments) of errors.As with errors.AsType. It leaves the errors package and vendored code untouched. Change-Id: I3bde73f318a0b408bdb8f5a251494af15a13118a GitHub-Last-Rev: 8aaaa36a5a12d2a6a90c6d51680464e1a3115139 GitHub-Pull-Request: golang/go#75698 Reviewed-on: https://go-review.googlesource.com/c/go/+/708495 Auto-Submit: Michael Pratt <mpratt@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Alan Donovan <adonovan@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
2025-09-10encoding/json/v2: document context annotation with SemanticErrorJoe Tsai
When the json package calls Marshaler, MarshalerTo, Unmarshaler, or UnmarshalerFrom methods and a SemanticError is returned, it will automatically annotate the error with context. Document this behavior. Change-Id: Id8e775a7c1c2a6ffc29ea518913591915e8aff87 Reviewed-on: https://go-review.googlesource.com/c/go/+/701956 Reviewed-by: Damien Neil <dneil@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2025-08-13encoding/json/v2: cleanup error constructorsJoe Tsai
There is no need to explicitly pass in the options since this contained within the Encoder or Decoder struct ever since https://github.com/go-json-experiment/json/pull/163. Thus, remove it as an argument and fetch it from the coder. This only modifies code that is compiled in under goexperiment.jsonv2. Change-Id: I6c928b864bf7869889d7ee7d5c1d396fbe71296b Reviewed-on: https://go-review.googlesource.com/c/go/+/695278 Reviewed-by: Damien Neil <dneil@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2025-07-24encoding/json: reduce error text regressions under goexperiment.jsonv2Joe Tsai
There were minor and unnecessary error text changes when v1 was implemented using v2. Reduce divergences if possible. Of the cases reported in #74713, there are no more differences for: v1: json: cannot unmarshal number into Go value of type chan int v2: json: cannot unmarshal number into Go value of type chan int and v1: json: cannot unmarshal number into Go value of type error v2: json: cannot unmarshal number into Go value of type error However, there is a difference between: v1: json: cannot unmarshal string into Go struct field .F.V of type int v2: json: cannot unmarshal string into Go struct field S.F.V of type int For reasons unclear, the v1 logic was always inconsistent about whether it could properly record the root struct type, while the v1 emulation layer under v2 is always able to. This only modifies code that is compiled in under goexperiment.jsonv2. Fixes #74713 Change-Id: I9e87323b1810130cb929288fdd86aff4be82d5f2 Reviewed-on: https://go-review.googlesource.com/c/go/+/689918 Reviewed-by: Damien Neil <dneil@google.com> Auto-Submit: Joseph Tsai <joetsai@digital-static.net> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Knyszek <mknyszek@google.com>
2025-04-18encoding/json: add json/v2 with GOEXPERIMENT=jsonv2 guardDamien Neil
This imports the proposed new v2 JSON API implemented in github.com/go-json-experiment/json as of commit d3c622f1b874954c355e60c8e6b6baa5f60d2fed. When GOEXPERIMENT=jsonv2 is set, the encoding/json/v2 and encoding/jsontext packages are visible, the encoding/json package is implemented in terms of encoding/json/v2, and the encoding/json package include various additional APIs. (See #71497 for details.) When GOEXPERIMENT=jsonv2 is not set, the new API is not present and the encoding/json package is unchanged. The experimental API is not bound by the Go compatibility promise and is expected to evolve as updates are made to the json/v2 proposal. The contents of encoding/json/internal/jsontest/testdata are compressed with zstd v1.5.7 with the -19 option. Fixes #71845 For #71497 Change-Id: Ib8c94e5f0586b6aaa22833190b41cf6ef59f4f01 Reviewed-on: https://go-review.googlesource.com/c/go/+/665796 Auto-Submit: Damien Neil <dneil@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Joseph Tsai <joetsai@digital-static.net> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>