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go-spew
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Merge 0770b47fe5 into d8f796af33

This commit is contained in:
Mike Lundy 2019-10-16 19:08:06 +00:00 committed by GitHub
parent d8f796af33 0770b47fe5
commit c01f6f9bfc
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 19 additions and 4 deletions
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5
spew/config.go
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@ -71,6 +71,11 @@ type ConfigState struct {
// pointer addresses. This is useful when diffing data structures in tests.
DisablePointerAddresses bool
// DisableLengths specifies whether to disable the printing of lengths
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.
DisableLengths bool
// DisableCapacities specifies whether to disable the printing of capacities
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.

12
spew/dump.go
View File

@ -282,14 +282,18 @@ func (d *dumpState) dump(v reflect.Value) {
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
showLen := !d.cs.DisableLengths && valueLen != 0
showCap := !d.cs.DisableCapacities && valueCap != 0
if showLen || showCap {
d.w.Write(openParenBytes)
if valueLen != 0 {
if showLen {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if !d.cs.DisableCapacities && valueCap != 0 {
if valueLen != 0 {
if showCap {
if showLen {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)

6
spew/spew_test.go
View File

@ -132,6 +132,8 @@ func initSpewTests() {
scsContinue := &spew.ConfigState{Indent: " ", ContinueOnMethod: true}
scsNoPtrAddr := &spew.ConfigState{DisablePointerAddresses: true}
scsNoCap := &spew.ConfigState{DisableCapacities: true}
scsNoLen := &spew.ConfigState{DisableLengths: true}
scsNoLenNoCap := &spew.ConfigState{DisableCapacities: true, DisableLengths: true}
// Variables for tests on types which implement Stringer interface with and
// without a pointer receiver.
@ -203,6 +205,10 @@ func initSpewTests() {
{scsNoPtrAddr, fCSSdump, "", tptr, "(*spew_test.ptrTester)({\ns: (*struct {})({\n})\n})\n"},
{scsNoCap, fCSSdump, "", make([]string, 0, 10), "([]string) {\n}\n"},
{scsNoCap, fCSSdump, "", make([]string, 1, 10), "([]string) (len=1) {\n(string) \"\"\n}\n"},
{scsNoLen, fCSSdump, "", make([]string, 0, 10), "([]string) (cap=10) {\n}\n"},
{scsNoLen, fCSSdump, "", make([]string, 1, 10), "([]string) (cap=10) {\n(string) \"\"\n}\n"},
{scsNoLenNoCap, fCSSdump, "", make([]string, 0, 10), "([]string) {\n}\n"},
{scsNoLenNoCap, fCSSdump, "", make([]string, 1, 10), "([]string) {\n(string) \"\"\n}\n"},
}
}