@ -97,7 +97,7 @@ impl IntrinsicObject for RegExp {
None , None ,
Attribute ::CONFIGURABLE , Attribute ::CONFIGURABLE ,
) )
. property ( "lastIndex" , 0 , Attribute ::all ( ) ) . property ( utf16 ! ( "lastIndex" ) , 0 , Attribute ::all ( ) )
. method ( Self ::test , "test" , 1 ) . method ( Self ::test , "test" , 1 )
. method ( Self ::exec , "exec" , 1 ) . method ( Self ::exec , "exec" , 1 )
. method ( Self ::to_string , "toString" , 0 ) . method ( Self ::to_string , "toString" , 0 )
@ -110,15 +110,30 @@ impl IntrinsicObject for RegExp {
. method ( Self ::replace , ( JsSymbol ::replace ( ) , "[Symbol.replace]" ) , 2 ) . method ( Self ::replace , ( JsSymbol ::replace ( ) , "[Symbol.replace]" ) , 2 )
. method ( Self ::search , ( JsSymbol ::search ( ) , "[Symbol.search]" ) , 1 ) . method ( Self ::search , ( JsSymbol ::search ( ) , "[Symbol.search]" ) , 1 )
. method ( Self ::split , ( JsSymbol ::split ( ) , "[Symbol.split]" ) , 2 ) . method ( Self ::split , ( JsSymbol ::split ( ) , "[Symbol.split]" ) , 2 )
. accessor ( "hasIndices" , Some ( get_has_indices ) , None , flag_attributes ) . accessor (
. accessor ( "global" , Some ( get_global ) , None , flag_attributes ) utf16 ! ( "hasIndices" ) ,
. accessor ( "ignoreCase" , Some ( get_ignore_case ) , None , flag_attributes ) Some ( get_has_indices ) ,
. accessor ( "multiline" , Some ( get_multiline ) , None , flag_attributes ) None ,
. accessor ( "dotAll" , Some ( get_dot_all ) , None , flag_attributes ) flag_attributes ,
. accessor ( "unicode" , Some ( get_unicode ) , None , flag_attributes ) )
. accessor ( "sticky" , Some ( get_sticky ) , None , flag_attributes ) . accessor ( utf16 ! ( "global" ) , Some ( get_global ) , None , flag_attributes )
. accessor ( "flags" , Some ( get_flags ) , None , flag_attributes ) . accessor (
. accessor ( "source" , Some ( get_source ) , None , flag_attributes ) utf16 ! ( "ignoreCase" ) ,
Some ( get_ignore_case ) ,
None ,
flag_attributes ,
)
. accessor (
utf16 ! ( "multiline" ) ,
Some ( get_multiline ) ,
None ,
flag_attributes ,
)
. accessor ( utf16 ! ( "dotAll" ) , Some ( get_dot_all ) , None , flag_attributes )
. accessor ( utf16 ! ( "unicode" ) , Some ( get_unicode ) , None , flag_attributes )
. accessor ( utf16 ! ( "sticky" ) , Some ( get_sticky ) , None , flag_attributes )
. accessor ( utf16 ! ( "flags" ) , Some ( get_flags ) , None , flag_attributes )
. accessor ( utf16 ! ( "source" ) , Some ( get_source ) , None , flag_attributes )
. build ( ) ; . build ( ) ;
} }
@ -219,7 +234,7 @@ impl RegExp {
// 2. Perform ! DefinePropertyOrThrow(obj, "lastIndex", PropertyDescriptor { [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false }).
// 2. Perform ! DefinePropertyOrThrow(obj, "lastIndex", PropertyDescriptor { [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false }).
obj . define_property_or_throw ( obj . define_property_or_throw (
"lastIndex" , utf16 ! ( "lastIndex" ) ,
PropertyDescriptorBuilder ::new ( ) PropertyDescriptorBuilder ::new ( )
. writable ( true ) . writable ( true )
. enumerable ( false ) . enumerable ( false )
@ -298,7 +313,7 @@ impl RegExp {
obj . borrow_mut ( ) . data = ObjectData ::reg_exp ( Box ::new ( regexp ) ) ; obj . borrow_mut ( ) . data = ObjectData ::reg_exp ( Box ::new ( regexp ) ) ;
// 16. Perform ? Set(obj, "lastIndex", +0𝔽, true).
// 16. Perform ? Set(obj, "lastIndex", +0𝔽, true).
obj . set ( "lastIndex" , 0 , true , context ) ? ; obj . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
// 16. Return obj.
// 16. Return obj.
Ok ( obj . into ( ) ) Ok ( obj . into ( ) )
@ -528,41 +543,41 @@ impl RegExp {
// 4. Let hasIndices be ToBoolean(? Get(R, "hasIndices")).
// 4. Let hasIndices be ToBoolean(? Get(R, "hasIndices")).
// 5. If hasIndices is true, append the code unit 0x0064 (LATIN SMALL LETTER D) as the last code unit of result.
// 5. If hasIndices is true, append the code unit 0x0064 (LATIN SMALL LETTER D) as the last code unit of result.
if object . get ( "hasIndices" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "hasIndices" ) , context ) ? . to_boolean ( ) {
result . push ( 'd' ) ; result . push ( 'd' ) ;
} }
// 6. Let global be ! ToBoolean(? Get(R, "global")).
// 6. Let global be ! ToBoolean(? Get(R, "global")).
// 7. If global is true, append the code unit 0x0067 (LATIN SMALL LETTER G) as the last code unit of result.
// 7. If global is true, append the code unit 0x0067 (LATIN SMALL LETTER G) as the last code unit of result.
if object . get ( "global" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "global" ) , context ) ? . to_boolean ( ) {
result . push ( 'g' ) ; result . push ( 'g' ) ;
} }
// 8. Let ignoreCase be ! ToBoolean(? Get(R, "ignoreCase")).
// 8. Let ignoreCase be ! ToBoolean(? Get(R, "ignoreCase")).
// 9. If ignoreCase is true, append the code unit 0x0069 (LATIN SMALL LETTER I) as the last code unit of result.
// 9. If ignoreCase is true, append the code unit 0x0069 (LATIN SMALL LETTER I) as the last code unit of result.
if object . get ( "ignoreCase" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "ignoreCase" ) , context ) ? . to_boolean ( ) {
result . push ( 'i' ) ; result . push ( 'i' ) ;
} }
// 10. Let multiline be ! ToBoolean(? Get(R, "multiline")).
// 10. Let multiline be ! ToBoolean(? Get(R, "multiline")).
// 11. If multiline is true, append the code unit 0x006D (LATIN SMALL LETTER M) as the last code unit of result.
// 11. If multiline is true, append the code unit 0x006D (LATIN SMALL LETTER M) as the last code unit of result.
if object . get ( "multiline" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "multiline" ) , context ) ? . to_boolean ( ) {
result . push ( 'm' ) ; result . push ( 'm' ) ;
} }
// 12. Let dotAll be ! ToBoolean(? Get(R, "dotAll")).
// 12. Let dotAll be ! ToBoolean(? Get(R, "dotAll")).
// 13. If dotAll is true, append the code unit 0x0073 (LATIN SMALL LETTER S) as the last code unit of result.
// 13. If dotAll is true, append the code unit 0x0073 (LATIN SMALL LETTER S) as the last code unit of result.
if object . get ( "dotAll" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "dotAll" ) , context ) ? . to_boolean ( ) {
result . push ( 's' ) ; result . push ( 's' ) ;
} }
// 14. Let unicode be ! ToBoolean(? Get(R, "unicode")).
// 14. Let unicode be ! ToBoolean(? Get(R, "unicode")).
// 15. If unicode is true, append the code unit 0x0075 (LATIN SMALL LETTER U) as the last code unit of result.
// 15. If unicode is true, append the code unit 0x0075 (LATIN SMALL LETTER U) as the last code unit of result.
if object . get ( "unicode" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "unicode" ) , context ) ? . to_boolean ( ) {
result . push ( 'u' ) ; result . push ( 'u' ) ;
} }
// 16. Let sticky be ! ToBoolean(? Get(R, "sticky")).
// 16. Let sticky be ! ToBoolean(? Get(R, "sticky")).
// 17. If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) as the last code unit of result.
// 17. If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) as the last code unit of result.
if object . get ( "sticky" , context ) ? . to_boolean ( ) { if object . get ( utf16 ! ( "sticky" ) , context ) ? . to_boolean ( ) {
result . push ( 'y' ) ; result . push ( 'y' ) ;
} }
@ -747,7 +762,7 @@ impl RegExp {
// 2. Assert: Type(S) is String.
// 2. Assert: Type(S) is String.
// 3. Let exec be ? Get(R, "exec").
// 3. Let exec be ? Get(R, "exec").
let exec = this . get ( "exec" , context ) ? ; let exec = this . get ( utf16 ! ( "exec" ) , context ) ? ;
// 4. If IsCallable(exec) is true, then
// 4. If IsCallable(exec) is true, then
if let Some ( exec ) = exec . as_callable ( ) { if let Some ( exec ) = exec . as_callable ( ) {
@ -805,7 +820,7 @@ impl RegExp {
let length = input . len ( ) as u64 ; let length = input . len ( ) as u64 ;
// 4. Let lastIndex be ℝ(? ToLength(? Get(R, "lastIndex"))).
// 4. Let lastIndex be ℝ(? ToLength(? Get(R, "lastIndex"))).
let mut last_index = this . get ( "lastIndex" , context ) ? . to_length ( context ) ? ; let mut last_index = this . get ( utf16 ! ( "lastIndex" ) , context ) ? . to_length ( context ) ? ;
// 5. Let flags be R.[[OriginalFlags]].
// 5. Let flags be R.[[OriginalFlags]].
let flags = & rx . original_flags ; let flags = & rx . original_flags ;
@ -835,7 +850,7 @@ impl RegExp {
// i. If global is true or sticky is true, then
// i. If global is true or sticky is true, then
if global | | sticky { if global | | sticky {
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
this . set ( "lastIndex" , 0 , true , context ) ? ; this . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
} }
// ii. Return null.
// ii. Return null.
@ -863,7 +878,7 @@ impl RegExp {
// i. If sticky is true, then
// i. If sticky is true, then
if sticky { if sticky {
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
this . set ( "lastIndex" , 0 , true , context ) ? ; this . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
// 2. Return null.
// 2. Return null.
return Ok ( None ) ; return Ok ( None ) ;
@ -880,7 +895,7 @@ impl RegExp {
// i. If sticky is true, then
// i. If sticky is true, then
if sticky { if sticky {
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
this . set ( "lastIndex" , 0 , true , context ) ? ; this . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
// 2. Return null.
// 2. Return null.
return Ok ( None ) ; return Ok ( None ) ;
@ -916,7 +931,7 @@ impl RegExp {
if global | | sticky { if global | | sticky {
// a. Perform ? Set(R, "lastIndex", 𝔽(e), true).
// a. Perform ? Set(R, "lastIndex", 𝔽(e), true).
this . set ( this . set (
"lastIndex" , utf16 ! ( "lastIndex" ) ,
lossy_input [ .. e ] . encode_utf16 ( ) . count ( ) , lossy_input [ .. e ] . encode_utf16 ( ) . count ( ) ,
true , true ,
context , context ,
@ -933,11 +948,11 @@ impl RegExp {
let a = Array ::array_create ( n + 1 , None , context ) ? ; let a = Array ::array_create ( n + 1 , None , context ) ? ;
// 20. Perform ! CreateDataPropertyOrThrow(A, "index", 𝔽(lastIndex)).
// 20. Perform ! CreateDataPropertyOrThrow(A, "index", 𝔽(lastIndex)).
a . create_data_property_or_throw ( "index" , match_value . start ( ) , context ) a . create_data_property_or_throw ( utf16 ! ( "index" ) , match_value . start ( ) , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
// 21. Perform ! CreateDataPropertyOrThrow(A, "input", S).
// 21. Perform ! CreateDataPropertyOrThrow(A, "input", S).
a . create_data_property_or_throw ( "input" , input . clone ( ) , context ) a . create_data_property_or_throw ( utf16 ! ( "input" ) , input . clone ( ) , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
// 22. Let matchedSubstr be the substring of S from lastIndex to e.
// 22. Let matchedSubstr be the substring of S from lastIndex to e.
@ -975,7 +990,7 @@ impl RegExp {
} ; } ;
// 26. Perform ! CreateDataPropertyOrThrow(A, "groups", groups).
// 26. Perform ! CreateDataPropertyOrThrow(A, "groups", groups).
a . create_data_property_or_throw ( "groups" , groups , context ) a . create_data_property_or_throw ( utf16 ! ( "groups" ) , groups , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
// 27. For each integer i such that i ≥ 1 and i ≤ n, in ascending order, do
// 27. For each integer i such that i ≥ 1 and i ≤ n, in ascending order, do
@ -1026,7 +1041,7 @@ impl RegExp {
let arg_str = args . get_or_undefined ( 0 ) . to_string ( context ) ? ; let arg_str = args . get_or_undefined ( 0 ) . to_string ( context ) ? ;
// 4. Let global be ! ToBoolean(? Get(rx, "global")).
// 4. Let global be ! ToBoolean(? Get(rx, "global")).
let global = rx . get ( "global" , context ) ? . to_boolean ( ) ; let global = rx . get ( utf16 ! ( "global" ) , context ) ? . to_boolean ( ) ;
// 5. If global is false, then
// 5. If global is false, then
#[ allow(clippy::if_not_else) ] #[ allow(clippy::if_not_else) ]
@ -1039,10 +1054,10 @@ impl RegExp {
// a. Assert: global is true.
// a. Assert: global is true.
// b. Let fullUnicode be ! ToBoolean(? Get(rx, "unicode")).
// b. Let fullUnicode be ! ToBoolean(? Get(rx, "unicode")).
let unicode = rx . get ( "unicode" , context ) ? . to_boolean ( ) ; let unicode = rx . get ( utf16 ! ( "unicode" ) , context ) ? . to_boolean ( ) ;
// c. Perform ? Set(rx, "lastIndex", +0𝔽, true).
// c. Perform ? Set(rx, "lastIndex", +0𝔽, true).
rx . set ( "lastIndex" , 0 , true , context ) ? ; rx . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
// d. Let A be ! ArrayCreate(0).
// d. Let A be ! ArrayCreate(0).
let a = let a =
@ -1060,7 +1075,7 @@ impl RegExp {
// iii. Else,
// iii. Else,
if let Some ( result ) = result { if let Some ( result ) = result {
// 1. Let matchStr be ? ToString(? Get(result, "0")).
// 1. Let matchStr be ? ToString(? Get(result, "0")).
let match_str = result . get ( "0" , context ) ? . to_string ( context ) ? ; let match_str = result . get ( 0 , context ) ? . to_string ( context ) ? ;
// 2. Perform ! CreateDataPropertyOrThrow(A, ! ToString(𝔽(n)), matchStr).
// 2. Perform ! CreateDataPropertyOrThrow(A, ! ToString(𝔽(n)), matchStr).
a . create_data_property_or_throw ( n , match_str . clone ( ) , context ) a . create_data_property_or_throw ( n , match_str . clone ( ) , context )
@ -1069,13 +1084,14 @@ impl RegExp {
// 3. If matchStr is the empty String, then
// 3. If matchStr is the empty String, then
if match_str . is_empty ( ) { if match_str . is_empty ( ) {
// a. Let thisIndex be ℝ(? ToLength(? Get(rx, "lastIndex"))).
// a. Let thisIndex be ℝ(? ToLength(? Get(rx, "lastIndex"))).
let this_index = rx . get ( "lastIndex" , context ) ? . to_length ( context ) ? ; let this_index =
rx . get ( utf16 ! ( "lastIndex" ) , context ) ? . to_length ( context ) ? ;
// b. Let nextIndex be AdvanceStringIndex(S, thisIndex, fullUnicode).
// b. Let nextIndex be AdvanceStringIndex(S, thisIndex, fullUnicode).
let next_index = advance_string_index ( & arg_str , this_index , unicode ) ; let next_index = advance_string_index ( & arg_str , this_index , unicode ) ;
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
rx . set ( "lastIndex" , JsValue ::new ( next_index ) , true , context ) ? ; rx . set ( utf16 ! ( "lastIndex" ) , JsValue ::new ( next_index ) , true , context ) ? ;
} }
// 4. Set n to n + 1.
// 4. Set n to n + 1.
@ -1157,16 +1173,18 @@ impl RegExp {
let c = regexp . species_constructor ( StandardConstructors ::regexp , context ) ? ; let c = regexp . species_constructor ( StandardConstructors ::regexp , context ) ? ;
// 5. Let flags be ? ToString(? Get(R, "flags")).
// 5. Let flags be ? ToString(? Get(R, "flags")).
let flags = regexp . get ( "flags" , context ) ? . to_string ( context ) ? ; let flags = regexp . get ( utf16 ! ( "flags" ) , context ) ? . to_string ( context ) ? ;
// 6. Let matcher be ? Construct(C, « R, flags »).
// 6. Let matcher be ? Construct(C, « R, flags »).
let matcher = c . construct ( & [ this . clone ( ) , flags . clone ( ) . into ( ) ] , Some ( & c ) , context ) ? ; let matcher = c . construct ( & [ this . clone ( ) , flags . clone ( ) . into ( ) ] , Some ( & c ) , context ) ? ;
// 7. Let lastIndex be ? ToLength(? Get(R, "lastIndex")).
// 7. Let lastIndex be ? ToLength(? Get(R, "lastIndex")).
let last_index = regexp . get ( "lastIndex" , context ) ? . to_length ( context ) ? ; let last_index = regexp
. get ( utf16 ! ( "lastIndex" ) , context ) ?
. to_length ( context ) ? ;
// 8. Perform ? Set(matcher, "lastIndex", lastIndex, true).
// 8. Perform ? Set(matcher, "lastIndex", lastIndex, true).
matcher . set ( "lastIndex" , last_index , true , context ) ? ; matcher . set ( utf16 ! ( "lastIndex" ) , last_index , true , context ) ? ;
// 9. If flags contains "g", let global be true.
// 9. If flags contains "g", let global be true.
// 10. Else, let global be false.
// 10. Else, let global be false.
@ -1228,16 +1246,16 @@ impl RegExp {
} ; } ;
// 7. Let global be ! ToBoolean(? Get(rx, "global")).
// 7. Let global be ! ToBoolean(? Get(rx, "global")).
let global = rx . get ( "global" , context ) ? . to_boolean ( ) ; let global = rx . get ( utf16 ! ( "global" ) , context ) ? . to_boolean ( ) ;
// 8. If global is true, then
// 8. If global is true, then
let mut unicode = false ; let mut unicode = false ;
if global { if global {
// a. Let fullUnicode be ! ToBoolean(? Get(rx, "unicode")).
// a. Let fullUnicode be ! ToBoolean(? Get(rx, "unicode")).
unicode = rx . get ( "unicode" , context ) ? . to_boolean ( ) ; unicode = rx . get ( utf16 ! ( "unicode" ) , context ) ? . to_boolean ( ) ;
// b. Perform ? Set(rx, "lastIndex", +0𝔽, true).
// b. Perform ? Set(rx, "lastIndex", +0𝔽, true).
rx . set ( "lastIndex" , 0 , true , context ) ? ; rx . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
} }
// 9. Let results be a new empty List.
// 9. Let results be a new empty List.
@ -1262,18 +1280,18 @@ impl RegExp {
} }
// iii. Else,
// iii. Else,
// 1. Let matchStr be ? ToString(? Get(result, "0")).
// 1. Let matchStr be ? ToString(? Get(result, "0")).
let match_str = result . get ( "0" , context ) ? . to_string ( context ) ? ; let match_str = result . get ( 0 , context ) ? . to_string ( context ) ? ;
// 2. If matchStr is the empty String, then
// 2. If matchStr is the empty String, then
if match_str . is_empty ( ) { if match_str . is_empty ( ) {
// a. Let thisIndex be ℝ(? ToLength(? Get(rx, "lastIndex"))).
// a. Let thisIndex be ℝ(? ToLength(? Get(rx, "lastIndex"))).
let this_index = rx . get ( "lastIndex" , context ) ? . to_length ( context ) ? ; let this_index = rx . get ( utf16 ! ( "lastIndex" ) , context ) ? . to_length ( context ) ? ;
// b. Let nextIndex be AdvanceStringIndex(S, thisIndex, fullUnicode).
// b. Let nextIndex be AdvanceStringIndex(S, thisIndex, fullUnicode).
let next_index = advance_string_index ( & arg_str , this_index , unicode ) ; let next_index = advance_string_index ( & arg_str , this_index , unicode ) ;
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
rx . set ( "lastIndex" , JsValue ::new ( next_index ) , true , context ) ? ; rx . set ( utf16 ! ( "lastIndex" ) , JsValue ::new ( next_index ) , true , context ) ? ;
} }
} else { } else {
break ; break ;
@ -1295,14 +1313,14 @@ impl RegExp {
let n_captures = std ::cmp ::max ( result_length - 1 , 0 ) ; let n_captures = std ::cmp ::max ( result_length - 1 , 0 ) ;
// c. Let matched be ? ToString(? Get(result, "0")).
// c. Let matched be ? ToString(? Get(result, "0")).
let matched = result . get ( "0" , context ) ? . to_string ( context ) ? ; let matched = result . get ( 0 , context ) ? . to_string ( context ) ? ;
// d. Let matchLength be the number of code units in matched.
// d. Let matchLength be the number of code units in matched.
let match_length = matched . len ( ) ; let match_length = matched . len ( ) ;
// e. Let position be ? ToIntegerOrInfinity(? Get(result, "index")).
// e. Let position be ? ToIntegerOrInfinity(? Get(result, "index")).
let position = result let position = result
. get ( "index" , context ) ? . get ( utf16 ! ( "index" ) , context ) ?
. to_integer_or_infinity ( context ) ? ; . to_integer_or_infinity ( context ) ? ;
// f. Set position to the result of clamping position between 0 and lengthS.
// f. Set position to the result of clamping position between 0 and lengthS.
@ -1331,7 +1349,7 @@ impl RegExp {
} }
// j. Let namedCaptures be ? Get(result, "groups").
// j. Let namedCaptures be ? Get(result, "groups").
let mut named_captures = result . get ( "groups" , context ) ? ; let mut named_captures = result . get ( utf16 ! ( "groups" ) , context ) ? ;
// k. If functionalReplace is true, then
// k. If functionalReplace is true, then
let replacement = match replace { let replacement = match replace {
@ -1430,31 +1448,31 @@ impl RegExp {
let arg_str = args . get_or_undefined ( 0 ) . to_string ( context ) ? ; let arg_str = args . get_or_undefined ( 0 ) . to_string ( context ) ? ;
// 4. Let previousLastIndex be ? Get(rx, "lastIndex").
// 4. Let previousLastIndex be ? Get(rx, "lastIndex").
let previous_last_index = rx . get ( "lastIndex" , context ) ? ; let previous_last_index = rx . get ( utf16 ! ( "lastIndex" ) , context ) ? ;
// 5. If SameValue(previousLastIndex, +0𝔽) is false, then
// 5. If SameValue(previousLastIndex, +0𝔽) is false, then
if ! JsValue ::same_value ( & previous_last_index , & JsValue ::new ( 0 ) ) { if ! JsValue ::same_value ( & previous_last_index , & JsValue ::new ( 0 ) ) {
// a. Perform ? Set(rx, "lastIndex", +0𝔽, true).
// a. Perform ? Set(rx, "lastIndex", +0𝔽, true).
rx . set ( "lastIndex" , 0 , true , context ) ? ; rx . set ( utf16 ! ( "lastIndex" ) , 0 , true , context ) ? ;
} }
// 6. Let result be ? RegExpExec(rx, S).
// 6. Let result be ? RegExpExec(rx, S).
let result = Self ::abstract_exec ( rx , arg_str , context ) ? ; let result = Self ::abstract_exec ( rx , arg_str , context ) ? ;
// 7. Let currentLastIndex be ? Get(rx, "lastIndex").
// 7. Let currentLastIndex be ? Get(rx, "lastIndex").
let current_last_index = rx . get ( "lastIndex" , context ) ? ; let current_last_index = rx . get ( utf16 ! ( "lastIndex" ) , context ) ? ;
// 8. If SameValue(currentLastIndex, previousLastIndex) is false, then
// 8. If SameValue(currentLastIndex, previousLastIndex) is false, then
if ! JsValue ::same_value ( & current_last_index , & previous_last_index ) { if ! JsValue ::same_value ( & current_last_index , & previous_last_index ) {
// a. Perform ? Set(rx, "lastIndex", previousLastIndex, true).
// a. Perform ? Set(rx, "lastIndex", previousLastIndex, true).
rx . set ( "lastIndex" , previous_last_index , true , context ) ? ; rx . set ( utf16 ! ( "lastIndex" ) , previous_last_index , true , context ) ? ;
} }
// 9. If result is null, return -1𝔽.
// 9. If result is null, return -1𝔽.
// 10. Return ? Get(result, "index").
// 10. Return ? Get(result, "index").
result . map_or_else ( result . map_or_else (
| | Ok ( JsValue ::new ( - 1 ) ) , | | Ok ( JsValue ::new ( - 1 ) ) ,
| result | result . get ( "index" , context ) , | result | result . get ( utf16 ! ( "index" ) , context ) ,
) )
} }
@ -1487,7 +1505,7 @@ impl RegExp {
let constructor = rx . species_constructor ( StandardConstructors ::regexp , context ) ? ; let constructor = rx . species_constructor ( StandardConstructors ::regexp , context ) ? ;
// 5. Let flags be ? ToString(? Get(rx, "flags")).
// 5. Let flags be ? ToString(? Get(rx, "flags")).
let flags = rx . get ( "flags" , context ) ? . to_string ( context ) ? ; let flags = rx . get ( utf16 ! ( "flags" ) , context ) ? . to_string ( context ) ? ;
// 6. If flags contains "u", let unicodeMatching be true.
// 6. If flags contains "u", let unicodeMatching be true.
// 7. Else, let unicodeMatching be false.
// 7. Else, let unicodeMatching be false.
@ -1556,7 +1574,7 @@ impl RegExp {
// 19. Repeat, while q < size,
// 19. Repeat, while q < size,
while q < size { while q < size {
// a. Perform ? Set(splitter, "lastIndex", 𝔽(q), true).
// a. Perform ? Set(splitter, "lastIndex", 𝔽(q), true).
splitter . set ( "lastIndex" , JsValue ::new ( q ) , true , context ) ? ; splitter . set ( utf16 ! ( "lastIndex" ) , JsValue ::new ( q ) , true , context ) ? ;
// b. Let z be ? RegExpExec(splitter, S).
// b. Let z be ? RegExpExec(splitter, S).
let result = Self ::abstract_exec ( & splitter , arg_str . clone ( ) , context ) ? ; let result = Self ::abstract_exec ( & splitter , arg_str . clone ( ) , context ) ? ;
@ -1565,7 +1583,9 @@ impl RegExp {
// d. Else,
// d. Else,
if let Some ( result ) = result { if let Some ( result ) = result {
// i. Let e be ℝ(? ToLength(? Get(splitter, "lastIndex"))).
// i. Let e be ℝ(? ToLength(? Get(splitter, "lastIndex"))).
let mut e = splitter . get ( "lastIndex" , context ) ? . to_length ( context ) ? ; let mut e = splitter
. get ( utf16 ! ( "lastIndex" ) , context ) ?
. to_length ( context ) ? ;
// ii. Set e to min(e, size).
// ii. Set e to min(e, size).
e = std ::cmp ::min ( e , size ) ; e = std ::cmp ::min ( e , size ) ;
Choongwoo Han
2 years ago