forked from golang/hotime
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
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package otto
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import (
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"math"
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"strconv"
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)
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// Number
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func numberValueFromNumberArgumentList(argumentList []Value) Value {
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if len(argumentList) > 0 {
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return argumentList[0].numberValue()
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}
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return toValue_int(0)
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}
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func builtinNumber(call FunctionCall) Value {
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return numberValueFromNumberArgumentList(call.ArgumentList)
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}
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func builtinNewNumber(self *_object, argumentList []Value) Value {
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return toValue_object(self.runtime.newNumber(numberValueFromNumberArgumentList(argumentList)))
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}
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func builtinNumber_toString(call FunctionCall) Value {
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// Will throw a TypeError if ThisObject is not a Number
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value := call.thisClassObject(classNumber).primitiveValue()
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radix := 10
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radixArgument := call.Argument(0)
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if radixArgument.IsDefined() {
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integer := toIntegerFloat(radixArgument)
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if integer < 2 || integer > 36 {
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panic(call.runtime.panicRangeError("toString() radix must be between 2 and 36"))
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}
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radix = int(integer)
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}
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if radix == 10 {
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return toValue_string(value.string())
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}
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return toValue_string(numberToStringRadix(value, radix))
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}
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func builtinNumber_valueOf(call FunctionCall) Value {
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return call.thisClassObject(classNumber).primitiveValue()
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}
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func builtinNumber_toFixed(call FunctionCall) Value {
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precision := toIntegerFloat(call.Argument(0))
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if 20 < precision || 0 > precision {
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panic(call.runtime.panicRangeError("toFixed() precision must be between 0 and 20"))
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}
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if call.This.IsNaN() {
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return toValue_string("NaN")
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}
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value := call.This.float64()
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if math.Abs(value) >= 1e21 {
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return toValue_string(floatToString(value, 64))
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}
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return toValue_string(strconv.FormatFloat(call.This.float64(), 'f', int(precision), 64))
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}
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func builtinNumber_toExponential(call FunctionCall) Value {
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if call.This.IsNaN() {
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return toValue_string("NaN")
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}
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precision := float64(-1)
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if value := call.Argument(0); value.IsDefined() {
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precision = toIntegerFloat(value)
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if 0 > precision {
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panic(call.runtime.panicRangeError("toString() radix must be between 2 and 36"))
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}
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}
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return toValue_string(strconv.FormatFloat(call.This.float64(), 'e', int(precision), 64))
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}
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func builtinNumber_toPrecision(call FunctionCall) Value {
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if call.This.IsNaN() {
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return toValue_string("NaN")
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}
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value := call.Argument(0)
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if value.IsUndefined() {
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return toValue_string(call.This.string())
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}
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precision := toIntegerFloat(value)
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if 1 > precision {
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panic(call.runtime.panicRangeError("toPrecision() precision must be greater than 1"))
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}
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return toValue_string(strconv.FormatFloat(call.This.float64(), 'g', int(precision), 64))
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}
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func builtinNumber_isNaN(call FunctionCall) Value {
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if len(call.ArgumentList) < 1 {
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return toValue_bool(false)
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}
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return toValue_bool(call.Argument(0).IsNaN())
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}
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func builtinNumber_toLocaleString(call FunctionCall) Value {
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return builtinNumber_toString(call)
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}
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