@ -1,11 +1,11 @@
//! Boa's implementation of ECMAScript's `Temporal.Instant` builtin object.
#![ allow(dead_code) ]
use crate ::{
builtins ::{
options ::{ get_option , get_options_object , RoundingMode } ,
temporal ::options ::{
get_temporal_rounding_increment , get_temporal_unit , TemporalUnitGroup ,
options ::{ get_option , get_options_object } ,
temporal ::{
duration ::{ create_temporal_duration , to_temporal_duration_record } ,
options ::{ get_temporal_unit , TemporalUnitGroup } ,
} ,
BuiltInBuilder , BuiltInConstructor , BuiltInObject , IntrinsicObject ,
} ,
@ -20,18 +20,17 @@ use crate::{
} ;
use boa_gc ::{ Finalize , Trace } ;
use boa_profiler ::Profiler ;
use boa_temporal ::{ components ::Duration , options ::TemporalUnit } ;
use super ::{ ns_max_instant , ns_min_instant , MIS_PER_DAY , MS_PER_DAY , NS_PER_DAY } ;
const NANOSECONDS_PER_SECOND : i64 = 10_000_000_000 ;
const NANOSECONDS_PER_MINUTE : i64 = 600_000_000_000 ;
const NANOSECONDS_PER_HOUR : i64 = 36_000_000_000_000 ;
use boa_temporal ::{
components ::Instant as InnerInstant ,
options ::{ TemporalRoundingMode , TemporalUnit } ,
} ;
/// The `Temporal.Instant` object.
#[ derive(Debug, Clone, Trace, Finalize, JsData) ]
// SAFETY: Instant does not contain any traceable values.
#[ boa_gc(unsafe_empty_trace) ]
pub struct Instant {
pub ( crate ) nanoseconds : JsBigInt ,
pub ( crate ) inner : InnerInsta nt,
}
impl BuiltInObject for Instant {
@ -131,13 +130,10 @@ impl BuiltInConstructor for Instant {
let epoch_nanos = args . get_or_undefined ( 0 ) . to_bigint ( context ) ? ;
// 3. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if ! is_valid_epoch_nanos ( & epoch_nanos ) {
return Err ( JsNativeError ::range ( )
. with_message ( "Temporal.Instant must have a valid epochNanoseconds." )
. into ( ) ) ;
} ;
// NOTE: boa_temporal::Instant asserts that the epochNanoseconds are valid.
let instant = InnerInstant ::new ( epoch_nanos . as_inner ( ) . clone ( ) ) ? ;
// 4. Return ? CreateTemporalInstant(epochNanoseconds, NewTarget).
create_temporal_instant ( epoch_nanos , Some ( new_target . clone ( ) ) , context )
create_temporal_instant ( instant , Some ( new_target . clone ( ) ) , context )
}
}
@ -159,11 +155,7 @@ impl Instant {
JsNativeError ::typ ( ) . with_message ( "the this object must be an instant object." )
} ) ? ;
// 3. Let ns be instant.[[Nanoseconds]].
let ns = & instant . nanoseconds ;
// 4. Let s be floor(ℝ(ns) / 10e9).
let s = ( ns . to_f64 ( ) / 10e9 ) . floor ( ) ;
// 5. Return 𝔽(s).
Ok ( s . into ( ) )
Ok ( instant . inner . epoch_seconds ( ) . into ( ) )
}
/// 8.3.4 get Temporal.Instant.prototype.epochMilliseconds
@ -181,11 +173,9 @@ impl Instant {
JsNativeError ::typ ( ) . with_message ( "the this object must be an instant object." )
} ) ? ;
// 3. Let ns be instant.[[Nanoseconds]].
let ns = & instant . nanoseconds ;
// 4. Let ms be floor(ℝ(ns) / 106).
let ms = ( ns . to_f64 ( ) / 10e6 ) . floor ( ) ;
// 5. Return 𝔽(ms).
Ok ( ms . into ( ) )
Ok ( instant . inner . epoch_ milli seconds ( ) . into ( ) )
}
/// 8.3.5 get Temporal.Instant.prototype.epochMicroseconds
@ -203,13 +193,10 @@ impl Instant {
JsNativeError ::typ ( ) . with_message ( "the this object must be an instant object." )
} ) ? ;
// 3. Let ns be instant.[[Nanoseconds]].
let ns = & instant . nanoseconds ;
// 4. Let µs be floor(ℝ(ns) / 103).
let micro_s = ( ns . to_f64 ( ) / 10e3 ) . floor ( ) ;
// 5. Return ℤ(µs).
let big_int = JsBigInt ::try_from ( micro_s ) . map_err ( | _ | {
JsNativeError ::typ ( ) . with_message ( "Could not convert microseconds to JsBigInt value" )
} ) ? ;
let big_int = JsBigInt ::try_from ( instant . inner . epoch_microseconds ( ) )
. expect ( "valid microseconds is in range of BigInt" ) ;
Ok ( big_int . into ( ) )
}
@ -228,9 +215,10 @@ impl Instant {
JsNativeError ::typ ( ) . with_message ( "the this object must be an instant object." )
} ) ? ;
// 3. Let ns be instant.[[Nanoseconds]].
let ns = & instant . nanoseconds ;
// 4. Return ns.
Ok ( ns . clone ( ) . into ( ) )
let big_int = JsBigInt ::try_from ( instant . inner . epoch_nanoseconds ( ) )
. expect ( "valid nanoseconds is in range of BigInt" ) ;
Ok ( big_int . into ( ) )
}
/// 8.3.7 `Temporal.Instant.prototype.add ( temporalDurationLike )`
@ -249,8 +237,9 @@ impl Instant {
} ) ? ;
// 3. Return ? AddDurationToOrSubtractDurationFromInstant(add, instant, temporalDurationLike).
let temporal_duration_like = args . get_or_undefined ( 0 ) ;
add_or_subtract_duration_from_instant ( true , & instant , temporal_duration_like , context )
let temporal_duration_like = to_temporal_duration_record ( args . get_or_undefined ( 0 ) ) ? ;
let result = instant . inner . add ( temporal_duration_like ) ? ;
create_temporal_instant ( result , None , context )
}
/// 8.3.8 `Temporal.Instant.prototype.subtract ( temporalDurationLike )`
@ -269,8 +258,9 @@ impl Instant {
} ) ? ;
// 3. Return ? AddDurationToOrSubtractDurationFromInstant(subtract, instant, temporalDurationLike).
let temporal_duration_like = args . get_or_undefined ( 0 ) ;
add_or_subtract_duration_from_instant ( false , & instant , temporal_duration_like , context )
let temporal_duration_like = to_temporal_duration_record ( args . get_or_undefined ( 0 ) ) ? ;
let result = instant . inner . subtract ( temporal_duration_like ) ? ;
create_temporal_instant ( result , None , context )
}
/// 8.3.9 `Temporal.Instant.prototype.until ( other [ , options ] )`
@ -289,9 +279,18 @@ impl Instant {
} ) ? ;
// 3. Return ? DifferenceTemporalInstant(until, instant, other, options).
let other = args . get_or_undefined ( 0 ) ;
let option = args . get_or_undefined ( 1 ) ;
diff_temporal_instant ( true , & instant , other , option , context )
let other = to_temporal_instant ( args . get_or_undefined ( 0 ) ) ? ;
// Fetch the necessary options.
let options = get_options_object ( args . get_or_undefined ( 1 ) ) ? ;
let mode = get_option ::< TemporalRoundingMode > ( & options , utf16 ! ( "roundingMode" ) , context ) ? ;
let increment = get_option ::< f64 > ( & options , utf16 ! ( "roundingIncrement" ) , context ) ? ;
let smallest_unit = get_option ::< TemporalUnit > ( & options , utf16 ! ( "smallestUnit" ) , context ) ? ;
let largest_unit = get_option ::< TemporalUnit > ( & options , utf16 ! ( "largestUnit" ) , context ) ? ;
let result = instant
. inner
. until ( & other , mode , increment , smallest_unit , largest_unit ) ? ;
create_temporal_duration ( result . into ( ) , None , context ) . map ( Into ::into )
}
/// 8.3.10 `Temporal.Instant.prototype.since ( other [ , options ] )`
@ -310,9 +309,16 @@ impl Instant {
} ) ? ;
// 3. Return ? DifferenceTemporalInstant(since, instant, other, options).
let other = args . get_or_undefined ( 0 ) ;
let option = args . get_or_undefined ( 1 ) ;
diff_temporal_instant ( false , & instant , other , option , context )
let other = to_temporal_instant ( args . get_or_undefined ( 0 ) ) ? ;
let options = get_options_object ( args . get_or_undefined ( 1 ) ) ? ;
let mode = get_option ::< TemporalRoundingMode > ( & options , utf16 ! ( "roundingMode" ) , context ) ? ;
let increment = get_option ::< f64 > ( & options , utf16 ! ( "roundingIncrement" ) , context ) ? ;
let smallest_unit = get_option ::< TemporalUnit > ( & options , utf16 ! ( "smallestUnit" ) , context ) ? ;
let largest_unit = get_option ::< TemporalUnit > ( & options , utf16 ! ( "largestUnit" ) , context ) ? ;
let result = instant
. inner
. since ( & other , mode , increment , smallest_unit , largest_unit ) ? ;
create_temporal_duration ( result . into ( ) , None , context ) . map ( Into ::into )
}
/// 8.3.11 `Temporal.Instant.prototype.round ( roundTo )`
@ -362,11 +368,12 @@ impl Instant {
// 6. NOTE: The following steps read options and perform independent validation in
// alphabetical order (ToTemporalRoundingIncrement reads "roundingIncrement" and ToTemporalRoundingMode reads "roundingMode").
// 7. Let roundingIncrement be ? ToTemporalRoundingIncrement(roundTo).
let rounding_increment = get_temporal_rounding_increment ( & round_to , context ) ? ;
let rounding_increment =
get_option ::< f64 > ( & round_to , utf16 ! ( "roundingIncrement" ) , context ) ? ;
// 8. Let roundingMode be ? ToTemporalRoundingMode(roundTo, "halfExpand").
let rounding_mode =
get_option ( & round_to , utf16 ! ( "roundingMode" ) , context ) ? . unwrap_or_default ( ) ;
get_option ::< TemporalRoundingMode > ( & round_to , utf16 ! ( "roundingMode" ) , context ) ? ;
// 9. Let smallestUnit be ? GetTemporalUnit(roundTo, "smallestUnit"), time, required).
let smallest_unit = get_temporal_unit (
@ -378,43 +385,28 @@ impl Instant {
) ?
. ok_or_else ( | | JsNativeError ::range ( ) . with_message ( "smallestUnit cannot be undefined." ) ) ? ;
let maximum = match smallest_unit {
// 10. If smallestUnit is "hour"), then
// a. Let maximum be HoursPerDay.
TemporalUnit ::Hour = > 24 u64 ,
// 11. Else if smallestUnit is "minute"), then
// a. Let maximum be MinutesPerHour × HoursPerDay.
TemporalUnit ::Minute = > 14400 u64 ,
// 12. Else if smallestUnit is "second"), then
// a. Let maximum be SecondsPerMinute × MinutesPerHour × HoursPerDay.
TemporalUnit ::Second = > 86400 u64 ,
// 13. Else if smallestUnit is "millisecond"), then
// a. Let maximum be ℝ(msPerDay).
TemporalUnit ::Millisecond = > MS_PER_DAY as u64 ,
// 14. Else if smallestUnit is "microsecond"), then
// a. Let maximum be 10^3 × ℝ(msPerDay).
TemporalUnit ::Microsecond = > MIS_PER_DAY as u64 ,
// 15. Else,
// a. Assert: smallestUnit is "nanosecond".
// b. Let maximum be nsPerDay.
TemporalUnit ::Nanosecond = > NS_PER_DAY as u64 ,
// unreachable here functions as 15.a.
_ = > unreachable! ( ) ,
} ;
// 16. Perform ? ValidateTemporalRoundingIncrement(roundingIncrement, maximum, true).
super ::validate_temporal_rounding_increment ( rounding_increment . into ( ) , maximum , true ) ? ;
// 17. Let roundedNs be RoundTemporalInstant(instant.[[Nanoseconds]], roundingIncrement, smallestUnit, roundingMode).
let rounded_ns = round_temporal_instant (
& instant . nanoseconds ,
rounding_increment . into ( ) ,
smallest_unit ,
rounding_mode ,
) ? ;
let result = instant
. inner
. round ( rounding_increment , smallest_unit , rounding_mode ) ? ;
// 18. Return ! CreateTemporalInstant(roundedNs).
create_temporal_instant ( round ed_n s , None , context )
create_temporal_instant ( result , None , context )
}
/// 8.3.12 `Temporal.Instant.prototype.equals ( other )`
@ -434,7 +426,7 @@ impl Instant {
let other = args . get_or_undefined ( 0 ) ;
let other_instant = to_temporal_instant ( other ) ? ;
if instant . nanoseconds ! = other_instant . nanoseconds {
if instant . inner ! = other_instant {
return Ok ( false . into ( ) ) ;
}
Ok ( true . into ( ) )
@ -467,30 +459,17 @@ impl Instant {
// -- Instant Abstract Operations --
/// 8.5.1 `IsValidEpochNanoseconds ( epochNanoseconds )`
#[ inline ]
fn is_valid_epoch_nanos ( epoch_nanos : & JsBigInt ) -> bool {
// 1. Assert: Type(epochNanoseconds) is BigInt.
// 2. If ℝ(epochNanoseconds) < nsMinInstant or ℝ(epochNanoseconds) > nsMaxInstant, then
if epoch_nanos . to_f64 ( ) < ns_min_instant ( ) . to_f64 ( )
| | epoch_nanos . to_f64 ( ) > ns_max_instant ( ) . to_f64 ( )
{
// a. Return false.
return false ;
}
// 3. Return true.
true
}
// 8.5.1 `IsValidEpochNanoseconds ( epochNanoseconds )`
// Implemented in `boa_temporal`
/// 8.5.2 `CreateTemporalInstant ( epochNanoseconds [ , newTarget ] )`
#[ inline ]
fn create_temporal_instant (
epoch_nanos : JsBigI nt,
instant : InnerInstant ,
new_target : Option < JsValue > ,
context : & mut Context ,
) -> JsResult < JsValue > {
// 1. Assert: ! IsValidEpochNanoseconds(epochNanoseconds) is true.
assert! ( is_valid_epoch_nanos ( & epoch_nanos ) ) ;
// 2. If newTarget is not present, set newTarget to %Temporal.Instant%.
let new_target = new_target . unwrap_or_else ( | | {
context
@ -506,12 +485,7 @@ fn create_temporal_instant(
get_prototype_from_constructor ( & new_target , StandardConstructors ::instant , context ) ? ;
// 4. Set object.[[Nanoseconds]] to epochNanoseconds.
let obj = JsObject ::from_proto_and_data (
proto ,
Instant {
nanoseconds : epoch_nanos ,
} ,
) ;
let obj = JsObject ::from_proto_and_data ( proto , Instant { inner : instant } ) ;
// 5. Return object.
Ok ( obj . into ( ) )
@ -519,231 +493,9 @@ fn create_temporal_instant(
/// 8.5.3 `ToTemporalInstant ( item )`
#[ inline ]
fn to_temporal_instant ( _ : & JsValue ) -> JsResult < Instant > {
fn to_temporal_instant ( _ : & JsValue ) -> JsResult < InnerIn stant > {
// TODO: Need to implement parsing.
Err ( JsNativeError ::error ( )
. with_message ( "Instant parsing is not yet implemented." )
. into ( ) )
}
/// 8.5.6 `AddInstant ( epochNanoseconds, hours, minutes, seconds, milliseconds, microseconds, nanoseconds )`
#[ inline ]
fn add_instant (
epoch_nanos : & JsBigInt ,
hours : i32 ,
minutes : i32 ,
seconds : i32 ,
millis : i32 ,
micros : i32 ,
nanos : i32 ,
) -> JsResult < JsBigInt > {
let result = JsBigInt ::add_n ( & [
JsBigInt ::mul (
& JsBigInt ::from ( hours ) ,
& JsBigInt ::from ( NANOSECONDS_PER_HOUR ) ,
) ,
JsBigInt ::mul (
& JsBigInt ::from ( minutes ) ,
& JsBigInt ::from ( NANOSECONDS_PER_MINUTE ) ,
) ,
JsBigInt ::mul (
& JsBigInt ::from ( seconds ) ,
& JsBigInt ::from ( NANOSECONDS_PER_SECOND ) ,
) ,
JsBigInt ::mul ( & JsBigInt ::from ( millis ) , & JsBigInt ::from ( 10_000_000_ i32 ) ) ,
JsBigInt ::mul ( & JsBigInt ::from ( micros ) , & JsBigInt ::from ( 1000_ i32 ) ) ,
JsBigInt ::add ( & JsBigInt ::from ( nanos ) , epoch_nanos ) ,
] ) ;
if ! is_valid_epoch_nanos ( & result ) {
return Err ( JsNativeError ::range ( )
. with_message ( "result is not a valid epoch nanosecond value." )
. into ( ) ) ;
}
Ok ( result )
}
/// 8.5.7 `DifferenceInstant ( ns1, ns2, roundingIncrement, smallestUnit, largestUnit, roundingMode )`
#[ inline ]
fn diff_instant (
ns1 : & JsBigInt ,
ns2 : & JsBigInt ,
_rounding_increment : f64 ,
_smallest_unit : TemporalUnit ,
_largest_unit : TemporalUnit ,
_rounding_mode : RoundingMode ,
_context : & mut Context ,
) -> JsResult < Duration > {
// 1. Let difference be ℝ(ns2) - ℝ(ns1).
let difference = JsBigInt ::sub ( ns1 , ns2 ) ;
// 2. Let nanoseconds be remainder(difference, 1000).
let _nanoseconds = JsBigInt ::rem ( & difference , & JsBigInt ::from ( 1000 ) ) ;
// 3. Let microseconds be remainder(truncate(difference / 1000), 1000).
let truncated_micro = JsBigInt ::try_from ( ( & difference . to_f64 ( ) / 1000_ f64 ) . trunc ( ) )
. map_err ( | e | JsNativeError ::typ ( ) . with_message ( e . to_string ( ) ) ) ? ;
let _microseconds = JsBigInt ::rem ( & truncated_micro , & JsBigInt ::from ( 1000 ) ) ;
// 4. Let milliseconds be remainder(truncate(difference / 106), 1000).
let truncated_milli = JsBigInt ::try_from ( ( & difference . to_f64 ( ) / 1_000_000_ f64 ) . trunc ( ) )
. map_err ( | e | JsNativeError ::typ ( ) . with_message ( e . to_string ( ) ) ) ? ;
let _milliseconds = JsBigInt ::rem ( & truncated_milli , & JsBigInt ::from ( 1000 ) ) ;
// 5. Let seconds be truncate(difference / 10^9).
let _seconds = ( & difference . to_f64 ( ) / 1_000_000_000_ f64 ) . trunc ( ) ;
// TODO: Update to new Temporal library
// 6. If smallestUnit is "nanosecond" and roundingIncrement is 1, then
// a. Return ! BalanceTimeDuration(0, 0, 0, seconds, milliseconds, microseconds, nanoseconds, largestUnit).
// 7. Let roundResult be ! RoundDuration(0, 0, 0, 0, 0, 0, seconds, milliseconds, microseconds, nanoseconds, roundingIncrement, smallestUnit, largestUnit, roundingMode).
// 8. Assert: roundResult.[[Days]] is 0.
// 9. Return ! BalanceTimeDuration(0, roundResult.[[Hours]], roundResult.[[Minutes]],
// roundResult.[[Seconds]], roundResult.[[Milliseconds]], roundResult.[[Microseconds]],
// roundResult.[[Nanoseconds]], largestUnit).
Err ( JsNativeError ::error ( )
. with_message ( "not yet implemented." )
. into ( ) )
}
/// 8.5.8 `RoundTemporalInstant ( ns, increment, unit, roundingMode )`
#[ inline ]
fn round_temporal_instant (
ns : & JsBigInt ,
increment : f64 ,
unit : TemporalUnit ,
rounding_mode : RoundingMode ,
) -> JsResult < JsBigInt > {
let increment_ns = match unit {
// 1. If unit is "hour"), then
TemporalUnit ::Hour = > {
// a. Let incrementNs be increment × 3.6 × 10^12.
increment as i64 * NANOSECONDS_PER_HOUR
}
// 2. Else if unit is "minute"), then
TemporalUnit ::Minute = > {
// a. Let incrementNs be increment × 6 × 10^10.
increment as i64 * NANOSECONDS_PER_MINUTE
}
// 3. Else if unit is "second"), then
TemporalUnit ::Second = > {
// a. Let incrementNs be increment × 10^9.
increment as i64 * NANOSECONDS_PER_SECOND
}
// 4. Else if unit is "millisecond"), then
TemporalUnit ::Millisecond = > {
// a. Let incrementNs be increment × 10^6.
increment as i64 * 1_000_000
}
// 5. Else if unit is "microsecond"), then
TemporalUnit ::Microsecond = > {
// a. Let incrementNs be increment × 10^3.
increment as i64 * 1000
}
// 6. Else,
TemporalUnit ::Nanosecond = > {
// NOTE: We shouldn't have to assert here as `unreachable` asserts instead.
// a. Assert: unit is "nanosecond".
// b. Let incrementNs be increment.
increment as i64
}
_ = > unreachable! ( ) ,
} ;
// 7. Return ℤ(RoundNumberToIncrementAsIfPositive(ℝ(ns), incrementNs, roundingMode)).
super ::round_to_increment_as_if_positive ( ns , increment_ns , rounding_mode )
}
/// 8.5.10 `DifferenceTemporalInstant ( operation, instant, other, options )`
#[ inline ]
fn diff_temporal_instant (
op : bool ,
instant : & Instant ,
other : & JsValue ,
options : & JsValue ,
context : & mut Context ,
) -> JsResult < JsValue > {
// 1. If operation is since, let sign be -1. Otherwise, let sign be 1.
let _sign = if op { 1_ f64 } else { - 1_ f64 } ;
// 2. Set other to ? ToTemporalInstant(other).
let other = to_temporal_instant ( other ) ? ;
// 3. Let resolvedOptions be ? CopyOptions(options).
let resolved_options =
super ::snapshot_own_properties ( & get_options_object ( options ) ? , None , None , context ) ? ;
// 4. Let settings be ? GetDifferenceSettings(operation, resolvedOptions, time, « », "nanosecond"), "second").
let settings = super ::get_diff_settings (
op ,
& resolved_options ,
TemporalUnitGroup ::Time ,
& [ ] ,
TemporalUnit ::Nanosecond ,
TemporalUnit ::Second ,
context ,
) ? ;
// 5. Let result be DifferenceInstant(instant.[[Nanoseconds]], other.[[Nanoseconds]], settings.[[RoundingIncrement]], settings.[[SmallestUnit]], settings.[[LargestUnit]], settings.[[RoundingMode]]).
let _result = diff_instant (
& instant . nanoseconds ,
& other . nanoseconds ,
settings . 3 ,
settings . 0 ,
settings . 1 ,
settings . 2 ,
context ,
) ? ;
// TODO: diff_instant will error so this shouldn't run.
unimplemented! ( ) ;
// 6. Return ! CreateTemporalDuration(0, 0, 0, 0, sign × result.[[Hours]], sign × result.[[Minutes]], sign × result.[[Seconds]], sign × result.[[Milliseconds]], sign × result.[[Microseconds]], sign × result.[[Nanoseconds]]).
}
/// 8.5.11 `AddDurationToOrSubtractDurationFromInstant ( operation, instant, temporalDurationLike )`
#[ inline ]
fn add_or_subtract_duration_from_instant (
op : bool ,
instant : & Instant ,
temporal_duration_like : & JsValue ,
context : & mut Context ,
) -> JsResult < JsValue > {
// 1. If operation is subtract, let sign be -1. Otherwise, let sign be 1.
let sign = if op { 1 } else { - 1 } ;
// 2. Let duration be ? ToTemporalDurationRecord(temporalDurationLike).
let duration = super ::to_temporal_duration_record ( temporal_duration_like ) ? ;
// 3. If duration.[[Days]] is not 0, throw a RangeError exception.
if duration . date ( ) . days ( ) ! = 0_ f64 {
return Err ( JsNativeError ::range ( )
. with_message ( "DurationDays cannot be 0" )
. into ( ) ) ;
}
// 4. If duration.[[Months]] is not 0, throw a RangeError exception.
if duration . date ( ) . months ( ) ! = 0_ f64 {
return Err ( JsNativeError ::range ( )
. with_message ( "DurationMonths cannot be 0" )
. into ( ) ) ;
}
// 5. If duration.[[Weeks]] is not 0, throw a RangeError exception.
if duration . date ( ) . weeks ( ) ! = 0_ f64 {
return Err ( JsNativeError ::range ( )
. with_message ( "DurationWeeks cannot be 0" )
. into ( ) ) ;
}
// 6. If duration.[[Years]] is not 0, throw a RangeError exception.
if duration . date ( ) . years ( ) ! = 0_ f64 {
return Err ( JsNativeError ::range ( )
. with_message ( "DurationYears cannot be 0" )
. into ( ) ) ;
}
// 7. Let ns be ? AddInstant(instant.[[Nanoseconds]], sign × duration.[[Hours]],
// sign × duration.[[Minutes]], sign × duration.[[Seconds]], sign × duration.[[Milliseconds]],
// sign × duration.[[Microseconds]], sign × duration.[[Nanoseconds]]).
let new = add_instant (
& instant . nanoseconds ,
sign * duration . time ( ) . hours ( ) as i32 ,
sign * duration . time ( ) . minutes ( ) as i32 ,
sign * duration . time ( ) . seconds ( ) as i32 ,
sign * duration . time ( ) . milliseconds ( ) as i32 ,
sign * duration . time ( ) . microseconds ( ) as i32 ,
sign * duration . time ( ) . nanoseconds ( ) as i32 ,
) ? ;
// 8. Return ! CreateTemporalInstant(ns).
create_temporal_instant ( new , None , context )
}