mirror of
https://github.com/robertkrimen/otto
synced 2025-10-12 20:27:30 +08:00
ad8a97c028
* Faster, more straightforward, etc. * More advanced object literals (get ..., set ...) * More tests using JavaScript from the wild (http://cdnjs.com/)
50 lines
907 B
Go
50 lines
907 B
Go
package otto
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import (
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"fmt"
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"math"
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"reflect"
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)
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func toBoolean(value Value) bool {
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if value._valueType == valueBoolean {
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return value.value.(bool)
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}
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if value.IsUndefined() {
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return false
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}
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if value.IsNull() {
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return false
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}
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switch value := value.value.(type) {
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case bool:
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return value
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case int, int8, int16, int32, int64:
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return 0 != reflect.ValueOf(value).Int()
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case uint, uint8, uint16, uint32, uint64:
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return 0 != reflect.ValueOf(value).Uint()
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case float32:
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return 0 != value
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case float64:
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if math.IsNaN(value) || value == 0 {
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return false
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}
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return true
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case string:
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return 0 != len(value)
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}
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if value.IsObject() {
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return true
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}
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panic(fmt.Errorf("toBoolean(%T)", value.value))
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}
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func stringToBoolean(value string) bool {
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if value == "true" {
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return true
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} else if value == "false" {
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return false
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}
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panic(fmt.Errorf("stringToBoolean(%s)", value))
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}
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