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cmd/vet: vendor in x/tools, update structtag vet check

Browse Source 
For #40281
Fixes #43083

Change-Id: I50cb4db916587a6660c7f6e71f41f02334081510
Reviewed-on: https://go-review.googlesource.com/c/go/+/277076
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
Ian Lance Taylor 2020-12-10 22:24:21 -08:00
parent e012d0dc34
commit 58e381b0b2
4 changed files with 62 additions and 44 deletions
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2
src/cmd/go.mod
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@ -8,5 +8,5 @@ require (
golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897
golang.org/x/mod v0.4.0
golang.org/x/sys v0.0.0-20201204225414-ed752295db88 // indirect
golang.org/x/tools v0.0.0-20201208211828-de58e7c01d49
golang.org/x/tools v0.0.0-20201211025543-abf6a1d87e11
)

4
src/cmd/go.sum
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@ -31,8 +31,8 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20201208211828-de58e7c01d49 h1:K1QAOVIWIvmQ66F1Z3AEa9Wzp0bj+xU3YzLkvROk2Ds=
golang.org/x/tools v0.0.0-20201208211828-de58e7c01d49/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.0.0-20201211025543-abf6a1d87e11 h1:9j/upNXDRpADUw2RpUfJ7E7GHtfhDih62kX6JM8vs2c=
golang.org/x/tools v0.0.0-20201211025543-abf6a1d87e11/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=

32
src/cmd/vendor/golang.org/x/tools/go/analysis/passes/structtag/structtag.go generated vendored
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@ -207,12 +207,12 @@ var (
)
// validateStructTag parses the struct tag and returns an error if it is not
// in the canonical format, which is a space-separated list of key:"value"
// settings. The value may contain spaces.
// in the canonical format, as defined by reflect.StructTag.
func validateStructTag(tag string) error {
// This code is based on the StructTag.Get code in package reflect.
n := 0
var keys []string
for ; tag != ""; n++ {
if n > 0 && tag != "" && tag[0] != ' ' {
// More restrictive than reflect, but catches likely mistakes
@ -240,14 +240,27 @@ func validateStructTag(tag string) error {
if i == 0 {
return errTagKeySyntax
}
if i+1 >= len(tag) || tag[i] != ':' {
if i+1 >= len(tag) || tag[i] < ' ' || tag[i] == 0x7f {
return errTagSyntax
}
if tag[i+1] != '"' {
key := tag[:i]
keys = append(keys, key)
tag = tag[i:]
// If we found a space char here - assume that we have a tag with
// multiple keys.
if tag[0] == ' ' {
continue
}
// Spaces were filtered above so we assume that here we have
// only valid tag value started with `:"`.
if tag[0] != ':' || tag[1] != '"' {
return errTagValueSyntax
}
key := tag[:i]
tag = tag[i+1:]
// Remove the colon leaving tag at the start of the quoted string.
tag = tag[1:]
// Scan quoted string to find value.
i = 1
@ -263,15 +276,17 @@ func validateStructTag(tag string) error {
qvalue := tag[:i+1]
tag = tag[i+1:]
value, err := strconv.Unquote(qvalue)
wholeValue, err := strconv.Unquote(qvalue)
if err != nil {
return errTagValueSyntax
}
for _, key := range keys {
if !checkTagSpaces[key] {
continue
}
value := wholeValue
switch key {
case "xml":
// If the first or last character in the XML tag is a space, it is
@ -309,5 +324,8 @@ func validateStructTag(tag string) error {
return errTagValueSpace
}
}
keys = keys[:0]
}
return nil
}

2
src/cmd/vendor/modules.txt vendored
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@ -44,7 +44,7 @@ golang.org/x/mod/zip
golang.org/x/sys/internal/unsafeheader
golang.org/x/sys/unix
golang.org/x/sys/windows
# golang.org/x/tools v0.0.0-20201208211828-de58e7c01d49
# golang.org/x/tools v0.0.0-20201211025543-abf6a1d87e11
## explicit
golang.org/x/tools/go/analysis
golang.org/x/tools/go/analysis/internal/analysisflags