mirror of
https://github.com/octoleo/syncthing.git
synced 2024-12-24 11:55:40 +00:00
65aaa607ab
Change made by: - running "gvt fetch" on each of the packages mentioned in Godeps/Godeps.json - `rm -rf Godeps` - tweaking the build scripts to not mention Godeps - tweaking the build scripts to test `./lib/...`, `./cmd/...` explicitly (to avoid testing vendor) - tweaking the build scripts to not juggle GOPATH for Godeps and instead set GO15VENDOREXPERIMENT. This also results in some updated packages at the same time I bet. Building with Go 1.3 and 1.4 still *works* but won't use our vendored dependencies - the user needs to have the actual packages in their GOPATH then, which they'll get with a normal "go get". Building with Go 1.6+ will get our vendored dependencies by default even when not using our build script, which is nice. By doing this we gain some freedom in that we can pick and choose manually what to include in vendor, as it's not based on just dependency analysis of our own code. This is also a risk as we might pick up dependencies we are unaware of, as the build may work locally with those packages present in GOPATH. On the other hand the build server will detect this as it has no packages in it's GOPATH beyond what is included in the repo. Recommended tool to manage dependencies is github.com/FiloSottile/gvt.
277 lines
7.4 KiB
Go
277 lines
7.4 KiB
Go
/*
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Gomega's format package pretty-prints objects. It explores input objects recursively and generates formatted, indented output with type information.
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*/
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package format
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import (
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"fmt"
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"reflect"
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"strings"
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)
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// Use MaxDepth to set the maximum recursion depth when printing deeply nested objects
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var MaxDepth = uint(10)
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/*
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By default, all objects (even those that implement fmt.Stringer and fmt.GoStringer) are recursively inspected to generate output.
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Set UseStringerRepresentation = true to use GoString (for fmt.GoStringers) or String (for fmt.Stringer) instead.
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Note that GoString and String don't always have all the information you need to understand why a test failed!
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*/
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var UseStringerRepresentation = false
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//The default indentation string emitted by the format package
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var Indent = " "
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var longFormThreshold = 20
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/*
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Generates a formatted matcher success/failure message of the form:
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Expected
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<pretty printed actual>
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<message>
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<pretty printed expected>
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If expected is omited, then the message looks like:
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Expected
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<pretty printed actual>
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<message>
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*/
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func Message(actual interface{}, message string, expected ...interface{}) string {
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if len(expected) == 0 {
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return fmt.Sprintf("Expected\n%s\n%s", Object(actual, 1), message)
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} else {
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return fmt.Sprintf("Expected\n%s\n%s\n%s", Object(actual, 1), message, Object(expected[0], 1))
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}
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}
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/*
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Pretty prints the passed in object at the passed in indentation level.
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Object recurses into deeply nested objects emitting pretty-printed representations of their components.
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Modify format.MaxDepth to control how deep the recursion is allowed to go
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Set format.UseStringerRepresentation to true to return object.GoString() or object.String() when available instead of
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recursing into the object.
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*/
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func Object(object interface{}, indentation uint) string {
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indent := strings.Repeat(Indent, int(indentation))
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value := reflect.ValueOf(object)
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return fmt.Sprintf("%s<%s>: %s", indent, formatType(object), formatValue(value, indentation))
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}
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/*
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IndentString takes a string and indents each line by the specified amount.
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*/
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func IndentString(s string, indentation uint) string {
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components := strings.Split(s, "\n")
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result := ""
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indent := strings.Repeat(Indent, int(indentation))
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for i, component := range components {
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result += indent + component
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if i < len(components)-1 {
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result += "\n"
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}
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}
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return result
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}
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func formatType(object interface{}) string {
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t := reflect.TypeOf(object)
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if t == nil {
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return "nil"
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}
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switch t.Kind() {
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case reflect.Chan:
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v := reflect.ValueOf(object)
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return fmt.Sprintf("%T | len:%d, cap:%d", object, v.Len(), v.Cap())
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case reflect.Ptr:
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return fmt.Sprintf("%T | %p", object, object)
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case reflect.Slice:
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v := reflect.ValueOf(object)
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return fmt.Sprintf("%T | len:%d, cap:%d", object, v.Len(), v.Cap())
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case reflect.Map:
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v := reflect.ValueOf(object)
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return fmt.Sprintf("%T | len:%d", object, v.Len())
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default:
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return fmt.Sprintf("%T", object)
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}
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}
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func formatValue(value reflect.Value, indentation uint) string {
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if indentation > MaxDepth {
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return "..."
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}
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if isNilValue(value) {
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return "nil"
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}
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if UseStringerRepresentation {
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if value.CanInterface() {
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obj := value.Interface()
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switch x := obj.(type) {
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case fmt.GoStringer:
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return x.GoString()
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case fmt.Stringer:
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return x.String()
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}
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}
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}
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switch value.Kind() {
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case reflect.Bool:
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return fmt.Sprintf("%v", value.Bool())
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return fmt.Sprintf("%v", value.Int())
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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return fmt.Sprintf("%v", value.Uint())
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case reflect.Uintptr:
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return fmt.Sprintf("0x%x", value.Uint())
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case reflect.Float32, reflect.Float64:
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return fmt.Sprintf("%v", value.Float())
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case reflect.Complex64, reflect.Complex128:
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return fmt.Sprintf("%v", value.Complex())
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case reflect.Chan:
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return fmt.Sprintf("0x%x", value.Pointer())
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case reflect.Func:
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return fmt.Sprintf("0x%x", value.Pointer())
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case reflect.Ptr:
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return formatValue(value.Elem(), indentation)
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case reflect.Slice:
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if value.Type().Elem().Kind() == reflect.Uint8 {
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return formatString(value.Bytes(), indentation)
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}
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return formatSlice(value, indentation)
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case reflect.String:
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return formatString(value.String(), indentation)
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case reflect.Array:
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return formatSlice(value, indentation)
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case reflect.Map:
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return formatMap(value, indentation)
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case reflect.Struct:
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return formatStruct(value, indentation)
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case reflect.Interface:
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return formatValue(value.Elem(), indentation)
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default:
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if value.CanInterface() {
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return fmt.Sprintf("%#v", value.Interface())
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} else {
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return fmt.Sprintf("%#v", value)
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}
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}
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}
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func formatString(object interface{}, indentation uint) string {
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if indentation == 1 {
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s := fmt.Sprintf("%s", object)
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components := strings.Split(s, "\n")
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result := ""
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for i, component := range components {
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if i == 0 {
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result += component
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} else {
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result += Indent + component
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}
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if i < len(components)-1 {
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result += "\n"
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}
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}
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return fmt.Sprintf("%s", result)
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} else {
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return fmt.Sprintf("%q", object)
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}
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}
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func formatSlice(v reflect.Value, indentation uint) string {
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l := v.Len()
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result := make([]string, l)
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longest := 0
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for i := 0; i < l; i++ {
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result[i] = formatValue(v.Index(i), indentation+1)
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if len(result[i]) > longest {
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longest = len(result[i])
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}
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}
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if longest > longFormThreshold {
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indenter := strings.Repeat(Indent, int(indentation))
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return fmt.Sprintf("[\n%s%s,\n%s]", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter)
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} else {
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return fmt.Sprintf("[%s]", strings.Join(result, ", "))
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}
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}
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func formatMap(v reflect.Value, indentation uint) string {
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l := v.Len()
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result := make([]string, l)
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longest := 0
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for i, key := range v.MapKeys() {
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value := v.MapIndex(key)
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result[i] = fmt.Sprintf("%s: %s", formatValue(key, 0), formatValue(value, indentation+1))
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if len(result[i]) > longest {
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longest = len(result[i])
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}
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}
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if longest > longFormThreshold {
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indenter := strings.Repeat(Indent, int(indentation))
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return fmt.Sprintf("{\n%s%s,\n%s}", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter)
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} else {
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return fmt.Sprintf("{%s}", strings.Join(result, ", "))
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}
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}
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func formatStruct(v reflect.Value, indentation uint) string {
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t := v.Type()
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l := v.NumField()
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result := []string{}
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longest := 0
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for i := 0; i < l; i++ {
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structField := t.Field(i)
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fieldEntry := v.Field(i)
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representation := fmt.Sprintf("%s: %s", structField.Name, formatValue(fieldEntry, indentation+1))
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result = append(result, representation)
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if len(representation) > longest {
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longest = len(representation)
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}
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}
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if longest > longFormThreshold {
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indenter := strings.Repeat(Indent, int(indentation))
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return fmt.Sprintf("{\n%s%s,\n%s}", indenter+Indent, strings.Join(result, ",\n"+indenter+Indent), indenter)
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} else {
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return fmt.Sprintf("{%s}", strings.Join(result, ", "))
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}
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}
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func isNilValue(a reflect.Value) bool {
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switch a.Kind() {
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case reflect.Invalid:
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return true
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case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
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return a.IsNil()
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}
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return false
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}
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func isNil(a interface{}) bool {
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if a == nil {
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return true
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}
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switch reflect.TypeOf(a).Kind() {
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case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
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return reflect.ValueOf(a).IsNil()
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}
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return false
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}
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