diff options
Diffstat (limited to 'vendor/github.com/robertkrimen/otto/value_boolean.go')
-rw-r--r-- | vendor/github.com/robertkrimen/otto/value_boolean.go | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/github.com/robertkrimen/otto/value_boolean.go b/vendor/github.com/robertkrimen/otto/value_boolean.go new file mode 100644 index 000000000..3040f4163 --- /dev/null +++ b/vendor/github.com/robertkrimen/otto/value_boolean.go @@ -0,0 +1,40 @@ +package otto + +import ( + "fmt" + "math" + "reflect" +) + +func (value Value) bool() bool { + if value.kind == valueBoolean { + return value.value.(bool) + } + if value.IsUndefined() { + return false + } + if value.IsNull() { + return false + } + switch value := value.value.(type) { + case bool: + return value + case int, int8, int16, int32, int64: + return 0 != reflect.ValueOf(value).Int() + case uint, uint8, uint16, uint32, uint64: + return 0 != reflect.ValueOf(value).Uint() + case float32: + return 0 != value + case float64: + if math.IsNaN(value) || value == 0 { + return false + } + return true + case string: + return 0 != len(value) + } + if value.IsObject() { + return true + } + panic(fmt.Errorf("toBoolean(%T)", value.value)) +} |