diff options
Diffstat (limited to 'vendor/github.com/spf13/cast')
| -rw-r--r-- | vendor/github.com/spf13/cast/LICENSE | 21 | ||||
| -rw-r--r-- | vendor/github.com/spf13/cast/Makefile | 38 | ||||
| -rw-r--r-- | vendor/github.com/spf13/cast/README.md | 75 | ||||
| -rw-r--r-- | vendor/github.com/spf13/cast/cast.go | 159 | ||||
| -rw-r--r-- | vendor/github.com/spf13/cast/caste.go | 1166 |
5 files changed, 0 insertions, 1459 deletions
diff --git a/vendor/github.com/spf13/cast/LICENSE b/vendor/github.com/spf13/cast/LICENSE deleted file mode 100644 index 4527efb..0000000 --- a/vendor/github.com/spf13/cast/LICENSE +++ /dev/null @@ -1,21 +0,0 @@ -The MIT License (MIT) - -Copyright (c) 2014 Steve Francia - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE.
\ No newline at end of file diff --git a/vendor/github.com/spf13/cast/Makefile b/vendor/github.com/spf13/cast/Makefile deleted file mode 100644 index 7ccf893..0000000 --- a/vendor/github.com/spf13/cast/Makefile +++ /dev/null @@ -1,38 +0,0 @@ -# A Self-Documenting Makefile: http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html - -.PHONY: check fmt lint test test-race vet test-cover-html help -.DEFAULT_GOAL := help - -check: test-race fmt vet lint ## Run tests and linters - -test: ## Run tests - go test ./... - -test-race: ## Run tests with race detector - go test -race ./... - -fmt: ## Run gofmt linter - @for d in `go list` ; do \ - if [ "`gofmt -l -s $$GOPATH/src/$$d | tee /dev/stderr`" ]; then \ - echo "^ improperly formatted go files" && echo && exit 1; \ - fi \ - done - -lint: ## Run golint linter - @for d in `go list` ; do \ - if [ "`golint $$d | tee /dev/stderr`" ]; then \ - echo "^ golint errors!" && echo && exit 1; \ - fi \ - done - -vet: ## Run go vet linter - @if [ "`go vet | tee /dev/stderr`" ]; then \ - echo "^ go vet errors!" && echo && exit 1; \ - fi - -test-cover-html: ## Generate test coverage report - go test -coverprofile=coverage.out -covermode=count - go tool cover -func=coverage.out - -help: - @grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' diff --git a/vendor/github.com/spf13/cast/README.md b/vendor/github.com/spf13/cast/README.md deleted file mode 100644 index e693939..0000000 --- a/vendor/github.com/spf13/cast/README.md +++ /dev/null @@ -1,75 +0,0 @@ -cast -==== -[](https://godoc.org/github.com/spf13/cast) -[](https://travis-ci.org/spf13/cast) -[](https://goreportcard.com/report/github.com/spf13/cast) - -Easy and safe casting from one type to another in Go - -Don’t Panic! ... Cast - -## What is Cast? - -Cast is a library to convert between different go types in a consistent and easy way. - -Cast provides simple functions to easily convert a number to a string, an -interface into a bool, etc. Cast does this intelligently when an obvious -conversion is possible. It doesn’t make any attempts to guess what you meant, -for example you can only convert a string to an int when it is a string -representation of an int such as “8”. Cast was developed for use in -[Hugo](http://hugo.spf13.com), a website engine which uses YAML, TOML or JSON -for meta data. - -## Why use Cast? - -When working with dynamic data in Go you often need to cast or convert the data -from one type into another. Cast goes beyond just using type assertion (though -it uses that when possible) to provide a very straightforward and convenient -library. - -If you are working with interfaces to handle things like dynamic content -you’ll need an easy way to convert an interface into a given type. This -is the library for you. - -If you are taking in data from YAML, TOML or JSON or other formats which lack -full types, then Cast is the library for you. - -## Usage - -Cast provides a handful of To_____ methods. These methods will always return -the desired type. **If input is provided that will not convert to that type, the -0 or nil value for that type will be returned**. - -Cast also provides identical methods To_____E. These return the same result as -the To_____ methods, plus an additional error which tells you if it successfully -converted. Using these methods you can tell the difference between when the -input matched the zero value or when the conversion failed and the zero value -was returned. - -The following examples are merely a sample of what is available. Please review -the code for a complete set. - -### Example ‘ToString’: - - cast.ToString("mayonegg") // "mayonegg" - cast.ToString(8) // "8" - cast.ToString(8.31) // "8.31" - cast.ToString([]byte("one time")) // "one time" - cast.ToString(nil) // "" - - var foo interface{} = "one more time" - cast.ToString(foo) // "one more time" - - -### Example ‘ToInt’: - - cast.ToInt(8) // 8 - cast.ToInt(8.31) // 8 - cast.ToInt("8") // 8 - cast.ToInt(true) // 1 - cast.ToInt(false) // 0 - - var eight interface{} = 8 - cast.ToInt(eight) // 8 - cast.ToInt(nil) // 0 - diff --git a/vendor/github.com/spf13/cast/cast.go b/vendor/github.com/spf13/cast/cast.go deleted file mode 100644 index 8b8c208..0000000 --- a/vendor/github.com/spf13/cast/cast.go +++ /dev/null @@ -1,159 +0,0 @@ -// Copyright © 2014 Steve Francia <spf@spf13.com>. -// -// Use of this source code is governed by an MIT-style -// license that can be found in the LICENSE file. - -// Package cast provides easy and safe casting in Go. -package cast - -import "time" - -// ToBool casts an interface to a bool type. -func ToBool(i interface{}) bool { - v, _ := ToBoolE(i) - return v -} - -// ToTime casts an interface to a time.Time type. -func ToTime(i interface{}) time.Time { - v, _ := ToTimeE(i) - return v -} - -// ToDuration casts an interface to a time.Duration type. -func ToDuration(i interface{}) time.Duration { - v, _ := ToDurationE(i) - return v -} - -// ToFloat64 casts an interface to a float64 type. -func ToFloat64(i interface{}) float64 { - v, _ := ToFloat64E(i) - return v -} - -// ToFloat32 casts an interface to a float32 type. -func ToFloat32(i interface{}) float32 { - v, _ := ToFloat32E(i) - return v -} - -// ToInt64 casts an interface to an int64 type. -func ToInt64(i interface{}) int64 { - v, _ := ToInt64E(i) - return v -} - -// ToInt32 casts an interface to an int32 type. -func ToInt32(i interface{}) int32 { - v, _ := ToInt32E(i) - return v -} - -// ToInt16 casts an interface to an int16 type. -func ToInt16(i interface{}) int16 { - v, _ := ToInt16E(i) - return v -} - -// ToInt8 casts an interface to an int8 type. -func ToInt8(i interface{}) int8 { - v, _ := ToInt8E(i) - return v -} - -// ToInt casts an interface to an int type. -func ToInt(i interface{}) int { - v, _ := ToIntE(i) - return v -} - -// ToUint casts an interface to a uint type. -func ToUint(i interface{}) uint { - v, _ := ToUintE(i) - return v -} - -// ToUint64 casts an interface to a uint64 type. -func ToUint64(i interface{}) uint64 { - v, _ := ToUint64E(i) - return v -} - -// ToUint32 casts an interface to a uint32 type. -func ToUint32(i interface{}) uint32 { - v, _ := ToUint32E(i) - return v -} - -// ToUint16 casts an interface to a uint16 type. -func ToUint16(i interface{}) uint16 { - v, _ := ToUint16E(i) - return v -} - -// ToUint8 casts an interface to a uint8 type. -func ToUint8(i interface{}) uint8 { - v, _ := ToUint8E(i) - return v -} - -// ToString casts an interface to a string type. -func ToString(i interface{}) string { - v, _ := ToStringE(i) - return v -} - -// ToStringMapString casts an interface to a map[string]string type. -func ToStringMapString(i interface{}) map[string]string { - v, _ := ToStringMapStringE(i) - return v -} - -// ToStringMapStringSlice casts an interface to a map[string][]string type. -func ToStringMapStringSlice(i interface{}) map[string][]string { - v, _ := ToStringMapStringSliceE(i) - return v -} - -// ToStringMapBool casts an interface to a map[string]bool type. -func ToStringMapBool(i interface{}) map[string]bool { - v, _ := ToStringMapBoolE(i) - return v -} - -// ToStringMap casts an interface to a map[string]interface{} type. -func ToStringMap(i interface{}) map[string]interface{} { - v, _ := ToStringMapE(i) - return v -} - -// ToSlice casts an interface to a []interface{} type. -func ToSlice(i interface{}) []interface{} { - v, _ := ToSliceE(i) - return v -} - -// ToBoolSlice casts an interface to a []bool type. -func ToBoolSlice(i interface{}) []bool { - v, _ := ToBoolSliceE(i) - return v -} - -// ToStringSlice casts an interface to a []string type. -func ToStringSlice(i interface{}) []string { - v, _ := ToStringSliceE(i) - return v -} - -// ToIntSlice casts an interface to a []int type. -func ToIntSlice(i interface{}) []int { - v, _ := ToIntSliceE(i) - return v -} - -// ToDurationSlice casts an interface to a []time.Duration type. -func ToDurationSlice(i interface{}) []time.Duration { - v, _ := ToDurationSliceE(i) - return v -} diff --git a/vendor/github.com/spf13/cast/caste.go b/vendor/github.com/spf13/cast/caste.go deleted file mode 100644 index 4fe1928..0000000 --- a/vendor/github.com/spf13/cast/caste.go +++ /dev/null @@ -1,1166 +0,0 @@ -// Copyright © 2014 Steve Francia <spf@spf13.com>. -// -// Use of this source code is governed by an MIT-style -// license that can be found in the LICENSE file. - -package cast - -import ( - "encoding/json" - "errors" - "fmt" - "html/template" - "reflect" - "strconv" - "strings" - "time" -) - -var errNegativeNotAllowed = errors.New("unable to cast negative value") - -// ToTimeE casts an interface to a time.Time type. -func ToTimeE(i interface{}) (tim time.Time, err error) { - i = indirect(i) - - switch v := i.(type) { - case time.Time: - return v, nil - case string: - return StringToDate(v) - case int: - return time.Unix(int64(v), 0), nil - case int64: - return time.Unix(v, 0), nil - case int32: - return time.Unix(int64(v), 0), nil - case uint: - return time.Unix(int64(v), 0), nil - case uint64: - return time.Unix(int64(v), 0), nil - case uint32: - return time.Unix(int64(v), 0), nil - default: - return time.Time{}, fmt.Errorf("unable to cast %#v of type %T to Time", i, i) - } -} - -// ToDurationE casts an interface to a time.Duration type. -func ToDurationE(i interface{}) (d time.Duration, err error) { - i = indirect(i) - - switch s := i.(type) { - case time.Duration: - return s, nil - case int, int64, int32, int16, int8, uint, uint64, uint32, uint16, uint8: - d = time.Duration(ToInt64(s)) - return - case float32, float64: - d = time.Duration(ToFloat64(s)) - return - case string: - if strings.ContainsAny(s, "nsuµmh") { - d, err = time.ParseDuration(s) - } else { - d, err = time.ParseDuration(s + "ns") - } - return - default: - err = fmt.Errorf("unable to cast %#v of type %T to Duration", i, i) - return - } -} - -// ToBoolE casts an interface to a bool type. -func ToBoolE(i interface{}) (bool, error) { - i = indirect(i) - - switch b := i.(type) { - case bool: - return b, nil - case nil: - return false, nil - case int: - if i.(int) != 0 { - return true, nil - } - return false, nil - case string: - return strconv.ParseBool(i.(string)) - default: - return false, fmt.Errorf("unable to cast %#v of type %T to bool", i, i) - } -} - -// ToFloat64E casts an interface to a float64 type. -func ToFloat64E(i interface{}) (float64, error) { - i = indirect(i) - - switch s := i.(type) { - case float64: - return s, nil - case float32: - return float64(s), nil - case int: - return float64(s), nil - case int64: - return float64(s), nil - case int32: - return float64(s), nil - case int16: - return float64(s), nil - case int8: - return float64(s), nil - case uint: - return float64(s), nil - case uint64: - return float64(s), nil - case uint32: - return float64(s), nil - case uint16: - return float64(s), nil - case uint8: - return float64(s), nil - case string: - v, err := strconv.ParseFloat(s, 64) - if err == nil { - return v, nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to float64", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to float64", i, i) - } -} - -// ToFloat32E casts an interface to a float32 type. -func ToFloat32E(i interface{}) (float32, error) { - i = indirect(i) - - switch s := i.(type) { - case float64: - return float32(s), nil - case float32: - return s, nil - case int: - return float32(s), nil - case int64: - return float32(s), nil - case int32: - return float32(s), nil - case int16: - return float32(s), nil - case int8: - return float32(s), nil - case uint: - return float32(s), nil - case uint64: - return float32(s), nil - case uint32: - return float32(s), nil - case uint16: - return float32(s), nil - case uint8: - return float32(s), nil - case string: - v, err := strconv.ParseFloat(s, 32) - if err == nil { - return float32(v), nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i) - } -} - -// ToInt64E casts an interface to an int64 type. -func ToInt64E(i interface{}) (int64, error) { - i = indirect(i) - - switch s := i.(type) { - case int: - return int64(s), nil - case int64: - return s, nil - case int32: - return int64(s), nil - case int16: - return int64(s), nil - case int8: - return int64(s), nil - case uint: - return int64(s), nil - case uint64: - return int64(s), nil - case uint32: - return int64(s), nil - case uint16: - return int64(s), nil - case uint8: - return int64(s), nil - case float64: - return int64(s), nil - case float32: - return int64(s), nil - case string: - v, err := strconv.ParseInt(s, 0, 0) - if err == nil { - return v, nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to int64", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to int64", i, i) - } -} - -// ToInt32E casts an interface to an int32 type. -func ToInt32E(i interface{}) (int32, error) { - i = indirect(i) - - switch s := i.(type) { - case int: - return int32(s), nil - case int64: - return int32(s), nil - case int32: - return s, nil - case int16: - return int32(s), nil - case int8: - return int32(s), nil - case uint: - return int32(s), nil - case uint64: - return int32(s), nil - case uint32: - return int32(s), nil - case uint16: - return int32(s), nil - case uint8: - return int32(s), nil - case float64: - return int32(s), nil - case float32: - return int32(s), nil - case string: - v, err := strconv.ParseInt(s, 0, 0) - if err == nil { - return int32(v), nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to int32", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to int32", i, i) - } -} - -// ToInt16E casts an interface to an int16 type. -func ToInt16E(i interface{}) (int16, error) { - i = indirect(i) - - switch s := i.(type) { - case int: - return int16(s), nil - case int64: - return int16(s), nil - case int32: - return int16(s), nil - case int16: - return s, nil - case int8: - return int16(s), nil - case uint: - return int16(s), nil - case uint64: - return int16(s), nil - case uint32: - return int16(s), nil - case uint16: - return int16(s), nil - case uint8: - return int16(s), nil - case float64: - return int16(s), nil - case float32: - return int16(s), nil - case string: - v, err := strconv.ParseInt(s, 0, 0) - if err == nil { - return int16(v), nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to int16", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to int16", i, i) - } -} - -// ToInt8E casts an interface to an int8 type. -func ToInt8E(i interface{}) (int8, error) { - i = indirect(i) - - switch s := i.(type) { - case int: - return int8(s), nil - case int64: - return int8(s), nil - case int32: - return int8(s), nil - case int16: - return int8(s), nil - case int8: - return s, nil - case uint: - return int8(s), nil - case uint64: - return int8(s), nil - case uint32: - return int8(s), nil - case uint16: - return int8(s), nil - case uint8: - return int8(s), nil - case float64: - return int8(s), nil - case float32: - return int8(s), nil - case string: - v, err := strconv.ParseInt(s, 0, 0) - if err == nil { - return int8(v), nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to int8", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to int8", i, i) - } -} - -// ToIntE casts an interface to an int type. -func ToIntE(i interface{}) (int, error) { - i = indirect(i) - - switch s := i.(type) { - case int: - return s, nil - case int64: - return int(s), nil - case int32: - return int(s), nil - case int16: - return int(s), nil - case int8: - return int(s), nil - case uint: - return int(s), nil - case uint64: - return int(s), nil - case uint32: - return int(s), nil - case uint16: - return int(s), nil - case uint8: - return int(s), nil - case float64: - return int(s), nil - case float32: - return int(s), nil - case string: - v, err := strconv.ParseInt(s, 0, 0) - if err == nil { - return int(v), nil - } - return 0, fmt.Errorf("unable to cast %#v of type %T to int", i, i) - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to int", i, i) - } -} - -// ToUintE casts an interface to a uint type. -func ToUintE(i interface{}) (uint, error) { - i = indirect(i) - - switch s := i.(type) { - case string: - v, err := strconv.ParseUint(s, 0, 0) - if err == nil { - return uint(v), nil - } - return 0, fmt.Errorf("unable to cast %#v to uint: %s", i, err) - case int: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case int64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case int32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case int16: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case int8: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case uint: - return s, nil - case uint64: - return uint(s), nil - case uint32: - return uint(s), nil - case uint16: - return uint(s), nil - case uint8: - return uint(s), nil - case float64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case float32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint(s), nil - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to uint", i, i) - } -} - -// ToUint64E casts an interface to a uint64 type. -func ToUint64E(i interface{}) (uint64, error) { - i = indirect(i) - - switch s := i.(type) { - case string: - v, err := strconv.ParseUint(s, 0, 64) - if err == nil { - return v, nil - } - return 0, fmt.Errorf("unable to cast %#v to uint64: %s", i, err) - case int: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case int64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case int32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case int16: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case int8: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case uint: - return uint64(s), nil - case uint64: - return s, nil - case uint32: - return uint64(s), nil - case uint16: - return uint64(s), nil - case uint8: - return uint64(s), nil - case float32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case float64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint64(s), nil - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to uint64", i, i) - } -} - -// ToUint32E casts an interface to a uint32 type. -func ToUint32E(i interface{}) (uint32, error) { - i = indirect(i) - - switch s := i.(type) { - case string: - v, err := strconv.ParseUint(s, 0, 32) - if err == nil { - return uint32(v), nil - } - return 0, fmt.Errorf("unable to cast %#v to uint32: %s", i, err) - case int: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case int64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case int32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case int16: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case int8: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case uint: - return uint32(s), nil - case uint64: - return uint32(s), nil - case uint32: - return s, nil - case uint16: - return uint32(s), nil - case uint8: - return uint32(s), nil - case float64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case float32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint32(s), nil - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to uint32", i, i) - } -} - -// ToUint16E casts an interface to a uint16 type. -func ToUint16E(i interface{}) (uint16, error) { - i = indirect(i) - - switch s := i.(type) { - case string: - v, err := strconv.ParseUint(s, 0, 16) - if err == nil { - return uint16(v), nil - } - return 0, fmt.Errorf("unable to cast %#v to uint16: %s", i, err) - case int: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case int64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case int32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case int16: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case int8: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case uint: - return uint16(s), nil - case uint64: - return uint16(s), nil - case uint32: - return uint16(s), nil - case uint16: - return s, nil - case uint8: - return uint16(s), nil - case float64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case float32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint16(s), nil - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to uint16", i, i) - } -} - -// ToUint8E casts an interface to a uint type. -func ToUint8E(i interface{}) (uint8, error) { - i = indirect(i) - - switch s := i.(type) { - case string: - v, err := strconv.ParseUint(s, 0, 8) - if err == nil { - return uint8(v), nil - } - return 0, fmt.Errorf("unable to cast %#v to uint8: %s", i, err) - case int: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case int64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case int32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case int16: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case int8: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case uint: - return uint8(s), nil - case uint64: - return uint8(s), nil - case uint32: - return uint8(s), nil - case uint16: - return uint8(s), nil - case uint8: - return s, nil - case float64: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case float32: - if s < 0 { - return 0, errNegativeNotAllowed - } - return uint8(s), nil - case bool: - if s { - return 1, nil - } - return 0, nil - case nil: - return 0, nil - default: - return 0, fmt.Errorf("unable to cast %#v of type %T to uint8", i, i) - } -} - -// From html/template/content.go -// Copyright 2011 The Go Authors. All rights reserved. -// indirect returns the value, after dereferencing as many times -// as necessary to reach the base type (or nil). -func indirect(a interface{}) interface{} { - if a == nil { - return nil - } - if t := reflect.TypeOf(a); t.Kind() != reflect.Ptr { - // Avoid creating a reflect.Value if it's not a pointer. - return a - } - v := reflect.ValueOf(a) - for v.Kind() == reflect.Ptr && !v.IsNil() { - v = v.Elem() - } - return v.Interface() -} - -// From html/template/content.go -// Copyright 2011 The Go Authors. All rights reserved. -// indirectToStringerOrError returns the value, after dereferencing as many times -// as necessary to reach the base type (or nil) or an implementation of fmt.Stringer -// or error, -func indirectToStringerOrError(a interface{}) interface{} { - if a == nil { - return nil - } - - var errorType = reflect.TypeOf((*error)(nil)).Elem() - var fmtStringerType = reflect.TypeOf((*fmt.Stringer)(nil)).Elem() - - v := reflect.ValueOf(a) - for !v.Type().Implements(fmtStringerType) && !v.Type().Implements(errorType) && v.Kind() == reflect.Ptr && !v.IsNil() { - v = v.Elem() - } - return v.Interface() -} - -// ToStringE casts an interface to a string type. -func ToStringE(i interface{}) (string, error) { - i = indirectToStringerOrError(i) - - switch s := i.(type) { - case string: - return s, nil - case bool: - return strconv.FormatBool(s), nil - case float64: - return strconv.FormatFloat(s, 'f', -1, 64), nil - case float32: - return strconv.FormatFloat(float64(s), 'f', -1, 32), nil - case int: - return strconv.Itoa(s), nil - case int64: - return strconv.FormatInt(s, 10), nil - case int32: - return strconv.Itoa(int(s)), nil - case int16: - return strconv.FormatInt(int64(s), 10), nil - case int8: - return strconv.FormatInt(int64(s), 10), nil - case uint: - return strconv.FormatInt(int64(s), 10), nil - case uint64: - return strconv.FormatInt(int64(s), 10), nil - case uint32: - return strconv.FormatInt(int64(s), 10), nil - case uint16: - return strconv.FormatInt(int64(s), 10), nil - case uint8: - return strconv.FormatInt(int64(s), 10), nil - case []byte: - return string(s), nil - case template.HTML: - return string(s), nil - case template.URL: - return string(s), nil - case template.JS: - return string(s), nil - case template.CSS: - return string(s), nil - case template.HTMLAttr: - return string(s), nil - case nil: - return "", nil - case fmt.Stringer: - return s.String(), nil - case error: - return s.Error(), nil - default: - return "", fmt.Errorf("unable to cast %#v of type %T to string", i, i) - } -} - -// ToStringMapStringE casts an interface to a map[string]string type. -func ToStringMapStringE(i interface{}) (map[string]string, error) { - var m = map[string]string{} - - switch v := i.(type) { - case map[string]string: - return v, nil - case map[string]interface{}: - for k, val := range v { - m[ToString(k)] = ToString(val) - } - return m, nil - case map[interface{}]string: - for k, val := range v { - m[ToString(k)] = ToString(val) - } - return m, nil - case map[interface{}]interface{}: - for k, val := range v { - m[ToString(k)] = ToString(val) - } - return m, nil - case string: - err := jsonStringToObject(v, &m) - return m, err - default: - return m, fmt.Errorf("unable to cast %#v of type %T to map[string]string", i, i) - } -} - -// ToStringMapStringSliceE casts an interface to a map[string][]string type. -func ToStringMapStringSliceE(i interface{}) (map[string][]string, error) { - var m = map[string][]string{} - - switch v := i.(type) { - case map[string][]string: - return v, nil - case map[string][]interface{}: - for k, val := range v { - m[ToString(k)] = ToStringSlice(val) - } - return m, nil - case map[string]string: - for k, val := range v { - m[ToString(k)] = []string{val} - } - case map[string]interface{}: - for k, val := range v { - switch vt := val.(type) { - case []interface{}: - m[ToString(k)] = ToStringSlice(vt) - case []string: - m[ToString(k)] = vt - default: - m[ToString(k)] = []string{ToString(val)} - } - } - return m, nil - case map[interface{}][]string: - for k, val := range v { - m[ToString(k)] = ToStringSlice(val) - } - return m, nil - case map[interface{}]string: - for k, val := range v { - m[ToString(k)] = ToStringSlice(val) - } - return m, nil - case map[interface{}][]interface{}: - for k, val := range v { - m[ToString(k)] = ToStringSlice(val) - } - return m, nil - case map[interface{}]interface{}: - for k, val := range v { - key, err := ToStringE(k) - if err != nil { - return m, fmt.Errorf("unable to cast %#v of type %T to map[string][]string", i, i) - } - value, err := ToStringSliceE(val) - if err != nil { - return m, fmt.Errorf("unable to cast %#v of type %T to map[string][]string", i, i) - } - m[key] = value - } - case string: - err := jsonStringToObject(v, &m) - return m, err - default: - return m, fmt.Errorf("unable to cast %#v of type %T to map[string][]string", i, i) - } - return m, nil -} - -// ToStringMapBoolE casts an interface to a map[string]bool type. -func ToStringMapBoolE(i interface{}) (map[string]bool, error) { - var m = map[string]bool{} - - switch v := i.(type) { - case map[interface{}]interface{}: - for k, val := range v { - m[ToString(k)] = ToBool(val) - } - return m, nil - case map[string]interface{}: - for k, val := range v { - m[ToString(k)] = ToBool(val) - } - return m, nil - case map[string]bool: - return v, nil - case string: - err := jsonStringToObject(v, &m) - return m, err - default: - return m, fmt.Errorf("unable to cast %#v of type %T to map[string]bool", i, i) - } -} - -// ToStringMapE casts an interface to a map[string]interface{} type. -func ToStringMapE(i interface{}) (map[string]interface{}, error) { - var m = map[string]interface{}{} - - switch v := i.(type) { - case map[interface{}]interface{}: - for k, val := range v { - m[ToString(k)] = val - } - return m, nil - case map[string]interface{}: - return v, nil - case string: - err := jsonStringToObject(v, &m) - return m, err - default: - return m, fmt.Errorf("unable to cast %#v of type %T to map[string]interface{}", i, i) - } -} - -// ToSliceE casts an interface to a []interface{} type. -func ToSliceE(i interface{}) ([]interface{}, error) { - var s []interface{} - - switch v := i.(type) { - case []interface{}: - return append(s, v...), nil - case []map[string]interface{}: - for _, u := range v { - s = append(s, u) - } - return s, nil - default: - return s, fmt.Errorf("unable to cast %#v of type %T to []interface{}", i, i) - } -} - -// ToBoolSliceE casts an interface to a []bool type. -func ToBoolSliceE(i interface{}) ([]bool, error) { - if i == nil { - return []bool{}, fmt.Errorf("unable to cast %#v of type %T to []bool", i, i) - } - - switch v := i.(type) { - case []bool: - return v, nil - } - - kind := reflect.TypeOf(i).Kind() - switch kind { - case reflect.Slice, reflect.Array: - s := reflect.ValueOf(i) - a := make([]bool, s.Len()) - for j := 0; j < s.Len(); j++ { - val, err := ToBoolE(s.Index(j).Interface()) - if err != nil { - return []bool{}, fmt.Errorf("unable to cast %#v of type %T to []bool", i, i) - } - a[j] = val - } - return a, nil - default: - return []bool{}, fmt.Errorf("unable to cast %#v of type %T to []bool", i, i) - } -} - -// ToStringSliceE casts an interface to a []string type. -func ToStringSliceE(i interface{}) ([]string, error) { - var a []string - - switch v := i.(type) { - case []interface{}: - for _, u := range v { - a = append(a, ToString(u)) - } - return a, nil - case []string: - return v, nil - case string: - return strings.Fields(v), nil - case interface{}: - str, err := ToStringE(v) - if err != nil { - return a, fmt.Errorf("unable to cast %#v of type %T to []string", i, i) - } - return []string{str}, nil - default: - return a, fmt.Errorf("unable to cast %#v of type %T to []string", i, i) - } -} - -// ToIntSliceE casts an interface to a []int type. -func ToIntSliceE(i interface{}) ([]int, error) { - if i == nil { - return []int{}, fmt.Errorf("unable to cast %#v of type %T to []int", i, i) - } - - switch v := i.(type) { - case []int: - return v, nil - } - - kind := reflect.TypeOf(i).Kind() - switch kind { - case reflect.Slice, reflect.Array: - s := reflect.ValueOf(i) - a := make([]int, s.Len()) - for j := 0; j < s.Len(); j++ { - val, err := ToIntE(s.Index(j).Interface()) - if err != nil { - return []int{}, fmt.Errorf("unable to cast %#v of type %T to []int", i, i) - } - a[j] = val - } - return a, nil - default: - return []int{}, fmt.Errorf("unable to cast %#v of type %T to []int", i, i) - } -} - -// ToDurationSliceE casts an interface to a []time.Duration type. -func ToDurationSliceE(i interface{}) ([]time.Duration, error) { - if i == nil { - return []time.Duration{}, fmt.Errorf("unable to cast %#v of type %T to []time.Duration", i, i) - } - - switch v := i.(type) { - case []time.Duration: - return v, nil - } - - kind := reflect.TypeOf(i).Kind() - switch kind { - case reflect.Slice, reflect.Array: - s := reflect.ValueOf(i) - a := make([]time.Duration, s.Len()) - for j := 0; j < s.Len(); j++ { - val, err := ToDurationE(s.Index(j).Interface()) - if err != nil { - return []time.Duration{}, fmt.Errorf("unable to cast %#v of type %T to []time.Duration", i, i) - } - a[j] = val - } - return a, nil - default: - return []time.Duration{}, fmt.Errorf("unable to cast %#v of type %T to []time.Duration", i, i) - } -} - -// StringToDate attempts to parse a string into a time.Time type using a -// predefined list of formats. If no suitable format is found, an error is -// returned. -func StringToDate(s string) (time.Time, error) { - return parseDateWith(s, []string{ - time.RFC3339, - "2006-01-02T15:04:05", // iso8601 without timezone - time.RFC1123Z, - time.RFC1123, - time.RFC822Z, - time.RFC822, - time.RFC850, - time.ANSIC, - time.UnixDate, - time.RubyDate, - "2006-01-02 15:04:05.999999999 -0700 MST", // Time.String() - "2006-01-02", - "02 Jan 2006", - "2006-01-02 15:04:05 -07:00", - "2006-01-02 15:04:05 -0700", - "2006-01-02 15:04:05Z07:00", // RFC3339 without T - "2006-01-02 15:04:05", - time.Kitchen, - time.Stamp, - time.StampMilli, - time.StampMicro, - time.StampNano, - }) -} - -func parseDateWith(s string, dates []string) (d time.Time, e error) { - for _, dateType := range dates { - if d, e = time.Parse(dateType, s); e == nil { - return - } - } - return d, fmt.Errorf("unable to parse date: %s", s) -} - -// jsonStringToObject attempts to unmarshall a string as JSON into -// the object passed as pointer. -func jsonStringToObject(s string, v interface{}) error { - data := []byte(s) - return json.Unmarshal(data, v) -} |