feat(eth0): add MAE0621A phy support

lin

2025-07-30 fcd736bf35fd93b563e9bbf594f2aa7b62028cc9

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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include "src/parsing/parsing.h"
 
#include <memory>
 
#include "src/ast/ast.h"
#include "src/objects-inl.h"
#include "src/parsing/parse-info.h"
#include "src/parsing/parser.h"
#include "src/parsing/scanner-character-streams.h"
#include "src/vm-state-inl.h"
 
namespace v8 {
namespace internal {
namespace parsing {
 
bool ParseProgram(ParseInfo* info, Isolate* isolate) {
  DCHECK(info->is_toplevel());
  DCHECK_NULL(info->literal());
 
  VMState<PARSER> state(isolate);
 
  // Create a character stream for the parser.
  Handle<String> source(String::cast(info->script()->source()), isolate);
  isolate->counters()->total_parse_size()->Increment(source->length());
  std::unique_ptr<Utf16CharacterStream> stream(
      ScannerStream::For(isolate, source));
  info->set_character_stream(std::move(stream));
 
  Parser parser(info);
 
  FunctionLiteral* result = nullptr;
  // Ok to use Isolate here; this function is only called in the main thread.
  DCHECK(parser.parsing_on_main_thread_);
 
  result = parser.ParseProgram(isolate, info);
  info->set_literal(result);
  if (result == nullptr) {
    info->pending_error_handler()->ReportErrors(isolate, info->script(),
                                                info->ast_value_factory());
  } else {
    result->scope()->AttachOuterScopeInfo(info, isolate);
    info->set_language_mode(info->literal()->language_mode());
    if (info->is_eval()) {
      info->set_allow_eval_cache(parser.allow_eval_cache());
    }
  }
  parser.UpdateStatistics(isolate, info->script());
  return (result != nullptr);
}
 
bool ParseFunction(ParseInfo* info, Handle<SharedFunctionInfo> shared_info,
                   Isolate* isolate) {
  DCHECK(!info->is_toplevel());
  DCHECK(!shared_info.is_null());
  DCHECK_NULL(info->literal());
 
  // Create a character stream for the parser.
  Handle<String> source(String::cast(info->script()->source()), isolate);
  isolate->counters()->total_parse_size()->Increment(source->length());
  std::unique_ptr<Utf16CharacterStream> stream(
      ScannerStream::For(isolate, source, shared_info->StartPosition(),
                         shared_info->EndPosition()));
  info->set_character_stream(std::move(stream));
 
  VMState<PARSER> state(isolate);
 
  Parser parser(info);
 
  FunctionLiteral* result = nullptr;
  // Ok to use Isolate here; this function is only called in the main thread.
  DCHECK(parser.parsing_on_main_thread_);
 
  result = parser.ParseFunction(isolate, info, shared_info);
  info->set_literal(result);
  if (result == nullptr) {
    info->pending_error_handler()->ReportErrors(isolate, info->script(),
                                                info->ast_value_factory());
  } else {
    result->scope()->AttachOuterScopeInfo(info, isolate);
    if (info->is_eval()) {
      info->set_allow_eval_cache(parser.allow_eval_cache());
    }
  }
  parser.UpdateStatistics(isolate, info->script());
  return (result != nullptr);
}
 
bool ParseAny(ParseInfo* info, Handle<SharedFunctionInfo> shared_info,
              Isolate* isolate) {
  DCHECK(!shared_info.is_null());
  return info->is_toplevel() ? ParseProgram(info, isolate)
                             : ParseFunction(info, shared_info, isolate);
}
 
}  // namespace parsing
}  // namespace internal
}  // namespace v8