@ -241,12 +241,12 @@ impl BuiltInConstructor for RegExp {
( p , f ) ( p , f )
} else if let Some ( pattern ) = pattern_is_regexp { } else if let Some ( pattern ) = pattern_is_regexp {
// a. Let P be ? Get(pattern, "source").
// a. Let P be ? Get(pattern, "source").
let p = pattern . get ( js_str ! ( "source" ) , context ) ? ; let p = pattern . get ( js_string ! ( "source" ) , context ) ? ;
// b. If flags is undefined, then
// b. If flags is undefined, then
let f = if flags . is_undefined ( ) { let f = if flags . is_undefined ( ) {
// i. Let F be ? Get(pattern, "flags").
// i. Let F be ? Get(pattern, "flags").
pattern . get ( js_str ! ( "flags" ) , context ) ? pattern . get ( js_string ! ( "flags" ) , context ) ?
// c. Else,
// c. Else,
} else { } else {
// i. Let F be flags.
// i. Let F be flags.
@ -643,49 +643,49 @@ 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) to codeUnits.
// 5. If hasIndices is true, append the code unit 0x0064 (LATIN SMALL LETTER D) to codeUnits.
if object . get ( js_str ! ( "hasIndices" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "hasIndices" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'd' ) ; code_units . 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) to codeUnits.
// 7. If global is true, append the code unit 0x0067 (LATIN SMALL LETTER G) to codeUnits.
if object . get ( js_str ! ( "global" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "global" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'g' ) ; code_units . 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) to codeUnits.
// 9. If ignoreCase is true, append the code unit 0x0069 (LATIN SMALL LETTER I) to codeUnits.
if object . get ( js_str ! ( "ignoreCase" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "ignoreCase" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'i' ) ; code_units . 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) to codeUnits.
// 11. If multiline is true, append the code unit 0x006D (LATIN SMALL LETTER M) to codeUnits.
if object . get ( js_str ! ( "multiline" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "multiline" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'm' ) ; code_units . 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) to codeUnits.
// 13. If dotAll is true, append the code unit 0x0073 (LATIN SMALL LETTER S) to codeUnits.
if object . get ( js_str ! ( "dotAll" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "dotAll" ) , context ) ? . to_boolean ( ) {
code_units . push ( 's' ) ; code_units . 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) to codeUnits.
// 15. If unicode is true, append the code unit 0x0075 (LATIN SMALL LETTER U) to codeUnits.
if object . get ( js_str ! ( "unicode" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "unicode" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'u' ) ; code_units . push ( 'u' ) ;
} }
// 16. Let unicodeSets be ToBoolean(? Get(R, "unicodeSets")).
// 16. Let unicodeSets be ToBoolean(? Get(R, "unicodeSets")).
// 17. If unicodeSets is true, append the code unit 0x0076 (LATIN SMALL LETTER V) to codeUnits.
// 17. If unicodeSets is true, append the code unit 0x0076 (LATIN SMALL LETTER V) to codeUnits.
if object . get ( js_str ! ( "unicodeSets" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "unicodeSets" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'v' ) ; code_units . push ( 'v' ) ;
} }
// 18. Let sticky be ToBoolean(? Get(R, "sticky")).
// 18. Let sticky be ToBoolean(? Get(R, "sticky")).
// 19. If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) to codeUnits.
// 19. If sticky is true, append the code unit 0x0079 (LATIN SMALL LETTER Y) to codeUnits.
if object . get ( js_str ! ( "sticky" ) , context ) ? . to_boolean ( ) { if object . get ( js_string ! ( "sticky" ) , context ) ? . to_boolean ( ) {
code_units . push ( 'y' ) ; code_units . push ( 'y' ) ;
} }
@ -727,7 +727,7 @@ impl RegExp {
this , this ,
& JsValue ::new ( context . intrinsics ( ) . constructors ( ) . regexp ( ) . prototype ( ) ) , & JsValue ::new ( context . intrinsics ( ) . constructors ( ) . regexp ( ) . prototype ( ) ) ,
) { ) {
Ok ( JsValue ::new ( js_str ! ( "(?:)" ) ) ) Ok ( JsValue ::new ( js_string ! ( "(?:)" ) ) )
} else { } else {
Err ( JsNativeError ::typ ( ) Err ( JsNativeError ::typ ( )
. with_message ( "RegExp.prototype.source method called on incompatible value" ) . with_message ( "RegExp.prototype.source method called on incompatible value" )
@ -755,7 +755,7 @@ impl RegExp {
/// [spec]: https://tc39.es/ecma262/#sec-escaperegexppattern
/// [spec]: https://tc39.es/ecma262/#sec-escaperegexppattern
fn escape_pattern ( src : & JsString , _flags : & JsString ) -> JsValue { fn escape_pattern ( src : & JsString , _flags : & JsString ) -> JsValue {
if src . is_empty ( ) { if src . is_empty ( ) {
js_str ! ( "(?:)" ) . into ( ) js_string ! ( "(?:)" ) . into ( )
} else { } else {
let mut s = Vec ::with_capacity ( src . len ( ) ) ; let mut s = Vec ::with_capacity ( src . len ( ) ) ;
let mut buf = [ 0 ; 2 ] ; let mut buf = [ 0 ; 2 ] ;
@ -866,7 +866,7 @@ 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 ( js_str ! ( "exec" ) , context ) ? ; let exec = this . get ( js_string ! ( "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 ( ) {
@ -919,7 +919,7 @@ impl RegExp {
// 2. Let lastIndex be ℝ(? ToLength(? Get(R, "lastIndex"))).
// 2. Let lastIndex be ℝ(? ToLength(? Get(R, "lastIndex"))).
let mut last_index = this let mut last_index = this
. get ( js_str ! ( "lastIndex" ) , context ) ? . get ( js_string ! ( "lastIndex" ) , context ) ?
. to_length ( context ) ? ; . to_length ( context ) ? ;
// 3. Let flags be R.[[OriginalFlags]].
// 3. Let flags be R.[[OriginalFlags]].
@ -957,7 +957,7 @@ 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 ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; this . set ( js_string ! ( "lastIndex" ) , 0 , true , context ) ? ;
} }
// ii. Return null.
// ii. Return null.
@ -990,7 +990,7 @@ impl RegExp {
// 13.a.i. If global is true or sticky is true, then
// 13.a.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 ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; this . set ( js_string ! ( "lastIndex" ) , 0 , true , context ) ? ;
} }
// MOVE: ii. Set lastIndex to AdvanceStringIndex(S, lastIndex, fullUnicode).
// MOVE: ii. Set lastIndex to AdvanceStringIndex(S, lastIndex, fullUnicode).
@ -1009,7 +1009,7 @@ impl RegExp {
// NOTE: regress currently doesn't support the sticky flag so we have to emulate it.
// NOTE: regress currently doesn't support the sticky flag so we have to emulate it.
if sticky & & match_value . start ( ) ! = last_index as usize { if sticky & & match_value . start ( ) ! = last_index as usize {
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
// 1. Perform ? Set(R, "lastIndex", +0𝔽, true).
this . set ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; this . set ( js_string ! ( "lastIndex" ) , 0 , true , context ) ? ;
// 2. Return null.
// 2. Return null.
return Ok ( None ) ; return Ok ( None ) ;
@ -1027,7 +1027,7 @@ impl RegExp {
// 16. If global is true or sticky is true, then
// 16. If global is true or sticky is true, then
if global | | sticky { if global | | sticky {
// a. Perform ? Set(R, "lastIndex", 𝔽(e), true).
// a. Perform ? Set(R, "lastIndex", 𝔽(e), true).
this . set ( js_str ! ( "lastIndex" ) , e , true , context ) ? ; this . set ( js_string ! ( "lastIndex" ) , e , true , context ) ? ;
} }
// 17. Let n be the number of elements in r's captures List.
// 17. Let n be the number of elements in r's captures List.
@ -1041,11 +1041,11 @@ impl RegExp {
let a = Array ::array_create ( n + 1 , None , context ) ? ; let a = Array ::array_create ( n + 1 , None , context ) ? ;
// 22. Perform ! CreateDataPropertyOrThrow(A, "index", 𝔽(lastIndex)).
// 22. Perform ! CreateDataPropertyOrThrow(A, "index", 𝔽(lastIndex)).
a . create_data_property_or_throw ( js_str ! ( "index" ) , last_index , context ) a . create_data_property_or_throw ( js_string ! ( "index" ) , last_index , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
// 23. Perform ! CreateDataPropertyOrThrow(A, "input", S).
// 23. Perform ! CreateDataPropertyOrThrow(A, "input", S).
a . create_data_property_or_throw ( js_str ! ( "input" ) , input . clone ( ) , context ) a . create_data_property_or_throw ( js_string ! ( "input" ) , input . clone ( ) , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
// 24. Let match be the Match Record { [[StartIndex]]: lastIndex, [[EndIndex]]: e }.
// 24. Let match be the Match Record { [[StartIndex]]: lastIndex, [[EndIndex]]: e }.
@ -1141,11 +1141,11 @@ impl RegExp {
// 22.2.7.8 MakeMatchIndicesIndexPairArray ( S, indices, groupNames, hasGroups )
// 22.2.7.8 MakeMatchIndicesIndexPairArray ( S, indices, groupNames, hasGroups )
// 8. Perform ! CreateDataPropertyOrThrow(A, "groups", groups).
// 8. Perform ! CreateDataPropertyOrThrow(A, "groups", groups).
indices indices
. create_data_property_or_throw ( js_str ! ( "groups" ) , group_names , context ) . create_data_property_or_throw ( js_string ! ( "groups" ) , group_names , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
// 32. Perform ! CreateDataPropertyOrThrow(A, "groups", groups).
// 32. Perform ! CreateDataPropertyOrThrow(A, "groups", groups).
a . create_data_property_or_throw ( js_str ! ( "groups" ) , groups , context ) a . create_data_property_or_throw ( js_string ! ( "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
@ -1186,7 +1186,7 @@ impl RegExp {
// a. Let indicesArray be MakeMatchIndicesIndexPairArray(S, indices, groupNames, hasGroups).
// a. Let indicesArray be MakeMatchIndicesIndexPairArray(S, indices, groupNames, hasGroups).
// b. Perform ! CreateDataPropertyOrThrow(A, "indices", indicesArray).
// b. Perform ! CreateDataPropertyOrThrow(A, "indices", indicesArray).
if has_indices { if has_indices {
a . create_data_property_or_throw ( js_str ! ( "indices" ) , indices , context ) a . create_data_property_or_throw ( js_string ! ( "indices" ) , indices , context )
. expect ( "this CreateDataPropertyOrThrow call must not fail" ) ; . expect ( "this CreateDataPropertyOrThrow call must not fail" ) ;
} }
@ -1221,7 +1221,7 @@ 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 flags be ? ToString(? Get(rx, "flags")).
// 4. Let flags be ? ToString(? Get(rx, "flags")).
let flags = rx . get ( js_str ! ( "flags" ) , context ) ? . to_string ( context ) ? ; let flags = rx . get ( js_string ! ( "flags" ) , context ) ? . to_string ( context ) ? ;
// 5. If flags does not contain "g", then
// 5. If flags does not contain "g", then
if ! flags . contains ( b'g' ) { if ! flags . contains ( b'g' ) {
@ -1236,7 +1236,7 @@ impl RegExp {
let full_unicode = flags . contains ( b'u' ) | | flags . contains ( b'v' ) ; let full_unicode = flags . contains ( b'u' ) | | flags . contains ( b'v' ) ;
// b. Perform ? Set(rx, "lastIndex", +0𝔽, true).
// b. Perform ? Set(rx, "lastIndex", +0𝔽, true).
rx . set ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; rx . set ( js_string ! ( "lastIndex" ) , 0 , true , context ) ? ;
// c. Let A be ! ArrayCreate(0).
// c. Let A be ! ArrayCreate(0).
let a = Array ::array_create ( 0 , None , context ) . expect ( "this ArrayCreate call must not fail" ) ; let a = Array ::array_create ( 0 , None , context ) . expect ( "this ArrayCreate call must not fail" ) ;
@ -1262,14 +1262,16 @@ 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 ( js_str ! ( "lastIndex" ) , context ) ? . to_length ( context ) ? ; let this_index = rx
. get ( js_string ! ( "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 , full_unicode ) ; let next_index = advance_string_index ( & arg_str , this_index , full_unicode ) ;
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
rx . set ( rx . set (
js_str ! ( "lastIndex" ) , js_string ! ( "lastIndex" ) ,
JsValue ::new ( next_index ) , JsValue ::new ( next_index ) ,
true , true ,
context , context ,
@ -1313,10 +1315,14 @@ impl RegExp {
} ) ? ; } ) ? ;
// 3. Let pattern be ? ToString(? Get(R, "source")).
// 3. Let pattern be ? ToString(? Get(R, "source")).
let pattern = regexp . get ( js_str ! ( "source" ) , context ) ? . to_string ( context ) ? ; let pattern = regexp
. get ( js_string ! ( "source" ) , context ) ?
. to_string ( context ) ? ;
// 4. Let flags be ? ToString(? Get(R, "flags")).
// 4. Let flags be ? ToString(? Get(R, "flags")).
let flags = regexp . get ( js_str ! ( "flags" ) , context ) ? . to_string ( context ) ? ; let flags = regexp
. get ( js_string ! ( "flags" ) , context ) ?
. to_string ( context ) ? ;
// 5. Let result be the string-concatenation of "/", pattern, "/", and flags.
// 5. Let result be the string-concatenation of "/", pattern, "/", and flags.
// 6. Return result.
// 6. Return result.
@ -1352,18 +1358,20 @@ 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 ( js_str ! ( "flags" ) , context ) ? . to_string ( context ) ? ; let flags = regexp
. get ( js_string ! ( "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 let last_index = regexp
. get ( js_str ! ( "lastIndex" ) , context ) ? . get ( js_string ! ( "lastIndex" ) , context ) ?
. to_length ( context ) ? ; . to_length ( context ) ? ;
// 8. Perform ? Set(matcher, "lastIndex", lastIndex, true).
// 8. Perform ? Set(matcher, "lastIndex", lastIndex, true).
matcher . set ( js_str ! ( "lastIndex" ) , last_index , true , context ) ? ; matcher . set ( js_string ! ( "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.
@ -1434,7 +1442,7 @@ impl RegExp {
} ; } ;
// 7. Let flags be ? ToString(? Get(rx, "flags")).
// 7. Let flags be ? ToString(? Get(rx, "flags")).
let flags = rx . get ( js_str ! ( "flags" ) , context ) ? . to_string ( context ) ? ; let flags = rx . get ( js_string ! ( "flags" ) , context ) ? . to_string ( context ) ? ;
// 8. If flags contains "g", let global be true. Otherwise, let global be false.
// 8. If flags contains "g", let global be true. Otherwise, let global be false.
let global = flags . contains ( b'g' ) ; let global = flags . contains ( b'g' ) ;
@ -1445,7 +1453,7 @@ impl RegExp {
let full_unicode = flags . contains ( b'u' ) ; let full_unicode = flags . contains ( b'u' ) ;
// b. Perform ? Set(rx, "lastIndex", +0𝔽, true).
// b. Perform ? Set(rx, "lastIndex", +0𝔽, true).
rx . set ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; rx . set ( js_string ! ( "lastIndex" ) , 0 , true , context ) ? ;
full_unicode full_unicode
} else { } else {
@ -1487,14 +1495,16 @@ impl RegExp {
// 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 ( js_str ! ( "lastIndex" ) , context ) ? . to_length ( context ) ? ; let this_index = rx
. get ( js_string ! ( "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 ( & s , this_index , full_unicode ) ; let next_index = advance_string_index ( & s , this_index , full_unicode ) ;
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
// c. Perform ? Set(rx, "lastIndex", 𝔽(nextIndex), true).
rx . set ( rx . set (
js_str ! ( "lastIndex" ) , js_string ! ( "lastIndex" ) ,
JsValue ::new ( next_index ) , JsValue ::new ( next_index ) ,
true , true ,
context , context ,
@ -1527,7 +1537,7 @@ impl RegExp {
// e. Let position be ? ToIntegerOrInfinity(? Get(result, "index")).
// e. Let position be ? ToIntegerOrInfinity(? Get(result, "index")).
let position = result let position = result
. get ( js_str ! ( "index" ) , context ) ? . get ( js_string ! ( "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.
@ -1559,7 +1569,7 @@ impl RegExp {
} }
// j. Let namedCaptures be ? Get(result, "groups").
// j. Let namedCaptures be ? Get(result, "groups").
let mut named_captures = result . get ( js_str ! ( "groups" ) , context ) ? ; let mut named_captures = result . get ( js_string ! ( "groups" ) , context ) ? ;
let replacement = match replace_value { let replacement = match replace_value {
// k. If functionalReplace is true, then
// k. If functionalReplace is true, then
@ -1659,31 +1669,31 @@ 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 ( js_str ! ( "lastIndex" ) , context ) ? ; let previous_last_index = rx . get ( js_string ! ( "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 ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; rx . set ( js_string ! ( "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 ( js_str ! ( "lastIndex" ) , context ) ? ; let current_last_index = rx . get ( js_string ! ( "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 ( js_str ! ( "lastIndex" ) , previous_last_index , true , context ) ? ; rx . set ( js_string ! ( "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 ( js_str ! ( "index" ) , context ) , | result | result . get ( js_string ! ( "index" ) , context ) ,
) )
} }
@ -1716,7 +1726,7 @@ 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 ( js_str ! ( "flags" ) , context ) ? . to_string ( context ) ? ; let flags = rx . get ( js_string ! ( "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.
@ -1785,7 +1795,7 @@ 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 ( js_str ! ( "lastIndex" ) , JsValue ::new ( q ) , true , context ) ? ; splitter . set ( js_string ! ( "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 ) ? ;
@ -1795,7 +1805,7 @@ impl RegExp {
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 let mut e = splitter
. get ( js_str ! ( "lastIndex" ) , context ) ? . get ( js_string ! ( "lastIndex" ) , context ) ?
. to_length ( context ) ? ; . to_length ( context ) ? ;
// ii. Set e to min(e, size).
// ii. Set e to min(e, size).
@ -1919,7 +1929,7 @@ impl RegExp {
. expect ( "already checked that the object was a RegExp" ) = regexp ; . expect ( "already checked that the object was a RegExp" ) = regexp ;
} }
this . set ( js_str ! ( "lastIndex" ) , 0 , true , context ) ? ; this . set ( js_string ! ( "lastIndex" ) , 0 , true , context ) ? ;
Ok ( this . into ( ) ) Ok ( this . into ( ) )
} }
CrazyboyQCD
2 weeks ago
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GitHub