go/src/encoding/json/encode.go, branch json-isValidNumber

encoding/json: optimize isValidNumber function

2023-02-18T09:15:58Z

We use an index instead of reslicing the string because reslicing a string updates both the data and length fields instead of just the one index variable. Benchmark result, name old time/op new time/op delta NumberIsValid-8 19.0ns ± 0% 14.5ns ± 1% -23.70% (p=0.008 n=5+5) name old alloc/op new alloc/op delta NumberIsValid-8 0.00B 0.00B ~ (all equal) name old allocs/op new allocs/op delta NumberIsValid-8 0.00 0.00 ~ (all equal) Change-Id: I4698c5db134998f83ff47fb3add6a04ba6ec3aa0

encoding/json: give it a chance to put encodeState back in pool when error occurs

2022-08-23T20:23:19Z

name old time/op new time/op delta CodeEncoderError-10 688µs ± 8% 496µs ±15% -27.92% (p=0.000 n=10+9) CodeMarshalError-10 747µs ± 6% 546µs ± 4% -26.86% (p=0.000 n=10+10) MarshalBytesError/32-10 284µs ± 2% 273µs ± 1% -3.84% (p=0.000 n=10+10) MarshalBytesError/256-10 281µs ± 2% 278µs ± 4% ~ (p=0.053 n=9+10) MarshalBytesError/4096-10 290µs ± 1% 279µs ± 3% -3.52% (p=0.000 n=10+10) name old speed new speed delta CodeEncoderError-10 2.83GB/s ± 8% 3.84GB/s ±20% +36.03% (p=0.000 n=10+10) CodeMarshalError-10 2.60GB/s ± 5% 3.56GB/s ± 4% +36.61% (p=0.000 n=10+10) name old alloc/op new alloc/op delta CodeEncoderError-10 4.05MB ± 1% 0.00MB ± 1% -100.00% (p=0.000 n=10+9) CodeMarshalError-10 6.05MB ± 0% 1.99MB ± 1% -67.13% (p=0.000 n=10+10) MarshalBytesError/32-10 66.0kB ± 0% 0.2kB ± 0% -99.67% (p=0.000 n=9+8) MarshalBytesError/256-10 50.1kB ± 0% 0.9kB ± 0% -98.23% (p=0.000 n=9+9) MarshalBytesError/4096-10 87.4kB ± 0% 7.5kB ± 0% -91.47% (p=0.000 n=8+10) name old allocs/op new allocs/op delta CodeEncoderError-10 25.0 ± 0% 4.0 ± 0% -84.00% (p=0.000 n=9+10) CodeMarshalError-10 27.0 ± 0% 6.0 ± 0% -77.78% (p=0.000 n=10+10) MarshalBytesError/32-10 18.0 ± 0% 5.0 ± 0% -72.22% (p=0.000 n=10+10) MarshalBytesError/256-10 17.0 ± 0% 6.0 ± 0% -64.71% (p=0.000 n=10+10) MarshalBytesError/4096-10 16.0 ± 0% 6.0 ± 0% -62.50% (p=0.000 n=10+10) Change-Id: I48070bb05f55707251c694e40d2570403bbf61f8 Reviewed-on: https://go-review.googlesource.com/c/go/+/423694 Auto-Submit: Ian Lance Taylor Reviewed-by: Daniel Martí Run-TryBot: Ian Lance Taylor Reviewed-by: Ian Lance Taylor Reviewed-by: David Chase TryBot-Result: Gopher Robot

all: gofmt main repo

2022-04-11T16:34:30Z

[This CL is part of a sequence implementing the proposal #51082. The design doc is at https://go.dev/s/godocfmt-design.] Run the updated gofmt, which reformats doc comments, on the main repository. Vendored files are excluded. For #51082. Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407 Reviewed-on: https://go-review.googlesource.com/c/go/+/384268 Reviewed-by: Jonathan Amsterdam Reviewed-by: Ian Lance Taylor

all: remove trailing blank doc comment lines

2022-04-01T18:18:07Z

A future change to gofmt will rewrite // Doc comment. // func f() to // Doc comment. func f() Apply that change preemptively to all doc comments. For #51082. Change-Id: I4023e16cfb0729b64a8590f071cd92f17343081d Reviewed-on: https://go-review.googlesource.com/c/go/+/384259 Trust: Russ Cox Run-TryBot: Russ Cox Reviewed-by: Ian Lance Taylor TryBot-Result: Gopher Robot

encoding/json: use reflect.Value.UnsafePointer over Pointer

2022-03-02T17:42:53Z

The latter returns a uintptr, while the former returns a unsafe.Pointer. A uintptr is unsafe if Go ever switches to a moving GC, while a unsafe.Pointer will be properly tracked by the GC. We do not use unsafe.Pointer for any unsafe type conversions, and only use it for comparability purposes, which is relatively safe. Updates #40592 Change-Id: I813e218668704b63a3043acda4331205a3835a66 Reviewed-on: https://go-review.googlesource.com/c/go/+/360855 Trust: Joseph Tsai Trust: Daniel Martí Reviewed-by: Daniel Martí Reviewed-by: Keith Randall Run-TryBot: Joseph Tsai TryBot-Result: Gopher Robot

all: gofmt -w -r 'interface{} -> any' src

2021-12-13T18:45:54Z

And then revert the bootstrap cmd directories and certain testdata. And adjust tests as needed. Not reverting the changes in std that are bootstrapped, because some of those changes would appear in API docs, and we want to use any consistently. Instead, rewrite 'any' to 'interface{}' in cmd/dist for those directories when preparing the bootstrap copy. A few files changed as a result of running gofmt -w not because of interface{} -> any but because they hadn't been updated for the new //go:build lines. Fixes #49884. Change-Id: Ie8045cba995f65bd79c694ec77a1b3d1fe01bb09 Reviewed-on: https://go-review.googlesource.com/c/go/+/368254 Trust: Russ Cox Run-TryBot: Russ Cox Reviewed-by: Robert Griesemer TryBot-Result: Gopher Robot

all: use reflect.{Pointer,PointerTo}

2021-10-26T14:24:17Z

Updates #47651 Updates #48665 Change-Id: I69a87b45a5cad7a07fbd855040cd9935cf874554 Reviewed-on: https://go-review.googlesource.com/c/go/+/358454 Trust: Cuong Manh Le Run-TryBot: Cuong Manh Le TryBot-Result: Go Bot Reviewed-by: Brad Fitzpatrick

encoding/json: marshal maps using reflect.Value.MapRange

2021-03-05T02:28:11Z

Map serialization using reflect.Value.MapIndex cannot retrieve map keys that contain a NaN, resulting in a panic. Switch the implementation to use the reflect.Value.MapRange method instead, which iterates over all map entries regardless of whether they are directly retrievable. Note that according to RFC 8259, section 4, a JSON object should have unique names, but does not forbid the occurrence of duplicate names. Fixes #43207 Change-Id: If4bc55229b1f64b8ca4b0fed37549725efdace39 Reviewed-on: https://go-review.googlesource.com/c/go/+/278632 Trust: Meng Zhuo Trust: Joe Tsai Trust: Bryan C. Mills Run-TryBot: Meng Zhuo TryBot-Result: Go Bot Reviewed-by: Joe Tsai Reviewed-by: Daniel Martí

reflect: add Method.IsExported and StructField.IsExported methods

2021-02-25T21:21:51Z

The IsExported method is a more intuitive helper for checking whether the method or field is exported than checking whether PkgPath is empty. In the same CL, modify the standard library to make use of this helper. Fixes #41563 Change-Id: Iaacfb3b74449501f98e2707aa32095a32bd3c3c1 Reviewed-on: https://go-review.googlesource.com/c/go/+/266197 Trust: Joe Tsai Run-TryBot: Joe Tsai TryBot-Result: Go Bot Reviewed-by: Ian Lance Taylor

encoding/json: added docs to UnsupportedValueError

2020-09-25T19:10:05Z

Added godoc to UnsupportedValueError. Change-Id: I5fc13bac0b6e14b3a6eba27c9d3331ff5c5269aa GitHub-Last-Rev: 516cd7a92903e1048caa4d560abf5d66339e5a8f GitHub-Pull-Request: golang/go#41364 Reviewed-on: https://go-review.googlesource.com/c/go/+/254540 Reviewed-by: Daniel Martí Trust: Daniel Martí Trust: Heschi Kreinick Run-TryBot: Daniel Martí TryBot-Result: Go Bot