[harmony-numeric-separator] remove flag

now that we are shipping this by default, we can remove the flag.

Change-Id: I298691df3eec934a5add1aa2a2748a0f3a884ab6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1726452
Commit-Queue: Joshua Litt <joshualitt@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63026}

src/flags/flag-definitions.h

@@ -240,7 +240,6 @@ DEFINE_IMPLICATION(harmony_import_meta, harmony_dynamic_import)
   V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")                \
   V(harmony_import_meta, "harmony import.meta property")                   \
   V(harmony_dynamic_import, "harmony dynamic import")                      \
-  V(harmony_numeric_separator, "harmony numeric separator between digits") \
   V(harmony_promise_all_settled, "harmony Promise.allSettled")
 
 #ifdef V8_INTL_SUPPORT

src/init/bootstrapper.cc

@@ -4259,7 +4259,6 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_namespace_exports)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_private_methods)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_dynamic_import)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_import_meta)
-EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_numeric_separator)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_sequence)
 
 #ifdef V8_INTL_SUPPORT

src/parsing/parse-info.cc

@@ -62,7 +62,6 @@ ParseInfo::ParseInfo(Isolate* isolate, AccountingAllocator* zone_allocator)
   set_allow_natives_syntax(FLAG_allow_natives_syntax);
   set_allow_harmony_dynamic_import(FLAG_harmony_dynamic_import);
   set_allow_harmony_import_meta(FLAG_harmony_import_meta);
-  set_allow_harmony_numeric_separator(FLAG_harmony_numeric_separator);
   set_allow_harmony_private_methods(FLAG_harmony_private_methods);
 }
 

src/parsing/parse-info.h

@@ -105,8 +105,6 @@ class V8_EXPORT_PRIVATE ParseInfo {
                 set_allow_harmony_dynamic_import)
   FLAG_ACCESSOR(kAllowHarmonyImportMeta, allow_harmony_import_meta,
                 set_allow_harmony_import_meta)
-  FLAG_ACCESSOR(kAllowHarmonyNumericSeparator, allow_harmony_numeric_separator,
-                set_allow_harmony_numeric_separator)
   FLAG_ACCESSOR(kAllowHarmonyPrivateMethods, allow_harmony_private_methods,
                 set_allow_harmony_private_methods)
   FLAG_ACCESSOR(kIsOneshotIIFE, is_oneshot_iife, set_is_oneshot_iife)
@@ -306,11 +304,10 @@ class V8_EXPORT_PRIVATE ParseInfo {
     kAllowHarmonyStaticFields = 1 << 24,
     kAllowHarmonyDynamicImport = 1 << 25,
     kAllowHarmonyImportMeta = 1 << 26,
-    kAllowHarmonyNumericSeparator = 1 << 27,
-    kAllowHarmonyPrivateFields = 1 << 28,
-    kAllowHarmonyPrivateMethods = 1 << 29,
-    kIsOneshotIIFE = 1 << 30,
-    kCollectSourcePositions = 1 << 31,
+    kAllowHarmonyPrivateFields = 1 << 27,
+    kAllowHarmonyPrivateMethods = 1 << 28,
+    kIsOneshotIIFE = 1 << 29,
+    kCollectSourcePositions = 1 << 30,
   };
 
   //------------- Inputs to parsing and scope analysis -----------------------

src/parsing/parser-base.h

@@ -285,12 +285,6 @@ class ParserBase {
 #undef ALLOW_ACCESSORS
 
   V8_INLINE bool has_error() const { return scanner()->has_parser_error(); }
-  bool allow_harmony_numeric_separator() const {
-    return scanner()->allow_harmony_numeric_separator();
-  }
-  void set_allow_harmony_numeric_separator(bool allow) {
-    scanner()->set_allow_harmony_numeric_separator(allow);
-  }
 
   uintptr_t stack_limit() const { return stack_limit_; }
 

src/parsing/parser.cc

@@ -424,7 +424,6 @@ Parser::Parser(ParseInfo* info)
   set_allow_natives(info->allow_natives_syntax());
   set_allow_harmony_dynamic_import(info->allow_harmony_dynamic_import());
   set_allow_harmony_import_meta(info->allow_harmony_import_meta());
-  set_allow_harmony_numeric_separator(info->allow_harmony_numeric_separator());
   set_allow_harmony_private_methods(info->allow_harmony_private_methods());
   for (int feature = 0; feature < v8::Isolate::kUseCounterFeatureCount;
        ++feature) {

src/parsing/scanner.cc

@@ -92,7 +92,6 @@ bool Scanner::BookmarkScope::HasBeenApplied() const {
 Scanner::Scanner(Utf16CharacterStream* source, bool is_module)
     : source_(source),
       found_html_comment_(false),
-      allow_harmony_numeric_separator_(false),
       is_module_(is_module),
       octal_pos_(Location::invalid()),
       octal_message_(MessageTemplate::kNone) {
@@ -629,8 +628,6 @@ bool Scanner::ScanDigitsWithNumericSeparators(bool (*predicate)(uc32 ch),
 }
 
 bool Scanner::ScanDecimalDigits(bool allow_numeric_separator) {
-  allow_numeric_separator =
-      allow_harmony_numeric_separator() && allow_numeric_separator;
   if (allow_numeric_separator) {
     return ScanDigitsWithNumericSeparators(&IsDecimalDigit, false);
   }
@@ -670,8 +667,6 @@ bool Scanner::ScanDecimalAsSmiWithNumericSeparators(uint64_t* value) {
 }
 
 bool Scanner::ScanDecimalAsSmi(uint64_t* value, bool allow_numeric_separator) {
-  allow_numeric_separator =
-      allow_harmony_numeric_separator() && allow_numeric_separator;
   if (allow_numeric_separator) {
     return ScanDecimalAsSmiWithNumericSeparators(value);
   }
@@ -686,35 +681,11 @@ bool Scanner::ScanDecimalAsSmi(uint64_t* value, bool allow_numeric_separator) {
 }
 
 bool Scanner::ScanBinaryDigits() {
-  if (allow_harmony_numeric_separator()) {
   return ScanDigitsWithNumericSeparators(&IsBinaryDigit, true);
-  }
-
-  // we must have at least one binary digit after 'b'/'B'
-  if (!IsBinaryDigit(c0_)) {
-    return false;
-  }
-
-  while (IsBinaryDigit(c0_)) {
-    AddLiteralCharAdvance();
-  }
-  return true;
 }
 
 bool Scanner::ScanOctalDigits() {
-  if (allow_harmony_numeric_separator()) {
   return ScanDigitsWithNumericSeparators(&IsOctalDigit, true);
-  }
-
-  // we must have at least one octal digit after 'o'/'O'
-  if (!IsOctalDigit(c0_)) {
-    return false;
-  }
-
-  while (IsOctalDigit(c0_)) {
-    AddLiteralCharAdvance();
-  }
-  return true;
 }
 
 bool Scanner::ScanImplicitOctalDigits(int start_pos,
@@ -738,19 +709,7 @@ bool Scanner::ScanImplicitOctalDigits(int start_pos,
 }
 
 bool Scanner::ScanHexDigits() {
-  if (allow_harmony_numeric_separator()) {
   return ScanDigitsWithNumericSeparators(&IsHexDigit, true);
-  }
-
-  // we must have at least one hex digit after 'x'/'X'
-  if (!IsHexDigit(c0_)) {
-    return false;
-  }
-
-  while (IsHexDigit(c0_)) {
-    AddLiteralCharAdvance();
-  }
-  return true;
 }
 
 bool Scanner::ScanSignedInteger() {
@@ -771,7 +730,7 @@ Token::Value Scanner::ScanNumber(bool seen_period) {
   if (seen_period) {
     // we have already seen a decimal point of the float
     AddLiteralChar('.');
-    if (allow_harmony_numeric_separator() && c0_ == '_') {
+    if (c0_ == '_') {
       return Token::ILLEGAL;
     }
     // we know we have at least one digit
@@ -805,7 +764,7 @@ Token::Value Scanner::ScanNumber(bool seen_period) {
         }
       } else if (IsNonOctalDecimalDigit(c0_)) {
         kind = DECIMAL_WITH_LEADING_ZERO;
-      } else if (allow_harmony_numeric_separator() && c0_ == '_') {
+      } else if (c0_ == '_') {
         ReportScannerError(Location(source_pos(), source_pos() + 1),
                            MessageTemplate::kZeroDigitNumericSeparator);
         return Token::ILLEGAL;
@@ -841,7 +800,7 @@ Token::Value Scanner::ScanNumber(bool seen_period) {
       if (c0_ == '.') {
         seen_period = true;
         AddLiteralCharAdvance();
-        if (allow_harmony_numeric_separator() && c0_ == '_') {
+        if (c0_ == '_') {
           return Token::ILLEGAL;
         }
         if (!ScanDecimalDigits(true)) return Token::ILLEGAL;

src/parsing/scanner.h

@@ -406,13 +406,6 @@ class V8_EXPORT_PRIVATE Scanner {
 
   bool FoundHtmlComment() const { return found_html_comment_; }
 
-  bool allow_harmony_numeric_separator() const {
-    return allow_harmony_numeric_separator_;
-  }
-  void set_allow_harmony_numeric_separator(bool allow) {
-    allow_harmony_numeric_separator_ = allow;
-  }
-
   const Utf16CharacterStream* stream() const { return source_; }
 
   // If the next characters in the stream are "#!", the line is skipped.
@@ -720,9 +713,6 @@ class V8_EXPORT_PRIVATE Scanner {
   // Whether this scanner encountered an HTML comment.
   bool found_html_comment_;
 
-  // Harmony flags to allow ESNext features.
-  bool allow_harmony_numeric_separator_;
-
   const bool is_module_;
 
   // Values parsed from magic comments.

test/cctest/test-parsing.cc

@@ -1529,7 +1529,6 @@ enum ParserFlag {
   kAllowHarmonyPrivateMethods,
   kAllowHarmonyDynamicImport,
   kAllowHarmonyImportMeta,
-  kAllowHarmonyNumericSeparator
 };
 
 enum ParserSyncTestResult {
@@ -1543,8 +1542,6 @@ void SetGlobalFlags(base::EnumSet<ParserFlag> flags) {
   i::FLAG_harmony_private_methods = flags.contains(kAllowHarmonyPrivateMethods);
   i::FLAG_harmony_dynamic_import = flags.contains(kAllowHarmonyDynamicImport);
   i::FLAG_harmony_import_meta = flags.contains(kAllowHarmonyImportMeta);
-  i::FLAG_harmony_numeric_separator =
-      flags.contains(kAllowHarmonyNumericSeparator);
 }
 
 void SetParserFlags(i::PreParser* parser, base::EnumSet<ParserFlag> flags) {
@@ -1555,8 +1552,6 @@ void SetParserFlags(i::PreParser* parser, base::EnumSet<ParserFlag> flags) {
       flags.contains(kAllowHarmonyDynamicImport));
   parser->set_allow_harmony_import_meta(
       flags.contains(kAllowHarmonyImportMeta));
-  parser->set_allow_harmony_numeric_separator(
-      flags.contains(kAllowHarmonyNumericSeparator));
 }
 
 void TestParserSyncWithFlags(i::Handle<i::String> source,
@@ -1891,11 +1886,8 @@ TEST(NonOctalDecimalIntegerStrictError) {
   const char* context_data[][2] = {{"\"use strict\";", ""}, {nullptr, nullptr}};
   const char* statement_data[] = {"09", "09.1_2", nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, flags, 1,
-                    nullptr, 0, false, true, true);
-
-  RunParserSyncTest(context_data, statement_data, kError);
+  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, nullptr,
+                    0, nullptr, 0, false, true);
 }
 
 TEST(NumericSeparator) {
@@ -1909,11 +1901,7 @@ TEST(NumericSeparator) {
       "1_0_0_0", "1_0e+1",  "1_0e+1_0", "0xF_F_FF", "0o7_7_7", "0b0_1_0_1_0",
       ".3_2_1",  "0.0_2_1", "1_0.0_1",  ".0_1_2",   nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kSuccess, nullptr, 0, flags,
-                    1);
-
-  RunParserSyncTest(context_data, statement_data, kError);
+  RunParserSyncTest(context_data, statement_data, kSuccess);
 }
 
 TEST(NumericSeparatorErrors) {
@@ -1929,11 +1917,8 @@ TEST(NumericSeparatorErrors) {
       "0b1__1",   "0_b1",    "0_b_1", "0o777_", "0o_777",  "0o7__77",
       "0.0_2_1_", "0.0__21", "0_.01", "0._01",  nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, flags, 1,
-                    nullptr, 0, false, true, true);
-
-  RunParserSyncTest(context_data, statement_data, kError);
+  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, nullptr,
+                    0, nullptr, 0, false, true);
 }
 
 TEST(NumericSeparatorImplicitOctalsErrors) {
@@ -1947,11 +1932,8 @@ TEST(NumericSeparatorImplicitOctalsErrors) {
                                   "0_7_7_7", "0_777",  "07_7_7_",
                                   "07__77",  "0__777", nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, flags, 1,
-                    nullptr, 0, false, true, true);
-
-  RunParserSyncTest(context_data, statement_data, kError);
+  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, nullptr,
+                    0, nullptr, 0, false, true);
 }
 
 TEST(NumericSeparatorNonOctalDecimalInteger) {
@@ -1962,11 +1944,8 @@ TEST(NumericSeparatorNonOctalDecimalInteger) {
   const char* context_data[][2] = {{"", ""}, {nullptr, nullptr}};
   const char* statement_data[] = {"09.1_2", nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kSuccess, nullptr, 0, flags,
-                    1, nullptr, 0, false, true, true);
-
-  RunParserSyncTest(context_data, statement_data, kError);
+  RunParserSyncTest(context_data, statement_data, kSuccess, nullptr, 0, nullptr,
+                    0, nullptr, 0, false, true);
 }
 
 TEST(NumericSeparatorNonOctalDecimalIntegerErrors) {
@@ -1977,11 +1956,8 @@ TEST(NumericSeparatorNonOctalDecimalIntegerErrors) {
   const char* context_data[][2] = {{"", ""}, {nullptr, nullptr}};
   const char* statement_data[] = {"09_12", nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, flags, 1,
-                    nullptr, 0, false, true, true);
-
-  RunParserSyncTest(context_data, statement_data, kError);
+  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, nullptr,
+                    0, nullptr, 0, false, true);
 }
 
 TEST(NumericSeparatorUnicodeEscapeSequencesErrors) {
@@ -1994,9 +1970,6 @@ TEST(NumericSeparatorUnicodeEscapeSequencesErrors) {
   // https://github.com/tc39/proposal-numeric-separator/issues/25
   const char* statement_data[] = {"\\u{10_FFFF}", nullptr};
 
-  static const ParserFlag flags[] = {kAllowHarmonyNumericSeparator};
-  RunParserSyncTest(context_data, statement_data, kError, nullptr, 0, flags, 1);
-
   RunParserSyncTest(context_data, statement_data, kError);
 }
 

test/mjsunit/harmony/numeric-separator.js

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --harmony-numeric-separator
-
 {
   const basic = 1_0_0_0;
   assertEquals(basic, 1000);

test/test262/testcfg.py

@@ -44,7 +44,6 @@ from testrunner.outproc import test262
 
 # TODO(littledan): move the flag mapping into the status file
 FEATURE_FLAGS = {
-  'numeric-separator-literal': '--harmony-numeric-separator',
   'Intl.DateTimeFormat-datetimestyle': '--harmony-intl-datetime-style',
   'Intl.DateTimeFormat-formatRange': '--harmony-intl-date-format-range',
   'Intl.NumberFormat-unified': '--harmony-intl-numberformat-unified',