ExecutionContext.cpp 2.3 KB

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  1. /*
  2. * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
  3. * Copyright (c) 2020-2021, Linus Groh <linusg@serenityos.org>
  4. * Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
  5. *
  6. * SPDX-License-Identifier: BSD-2-Clause
  7. */
  8. #include <LibJS/Bytecode/Executable.h>
  9. #include <LibJS/Heap/Heap.h>
  10. #include <LibJS/Runtime/ExecutionContext.h>
  11. #include <LibJS/Runtime/FunctionObject.h>
  12. namespace JS {
  13. NonnullOwnPtr<ExecutionContext> ExecutionContext::create(Heap& heap)
  14. {
  15. return adopt_own(*new ExecutionContext(heap));
  16. }
  17. ExecutionContext::ExecutionContext(Heap& heap)
  18. : m_heap(heap)
  19. {
  20. }
  21. ExecutionContext::~ExecutionContext()
  22. {
  23. }
  24. NonnullOwnPtr<ExecutionContext> ExecutionContext::copy() const
  25. {
  26. auto copy = create(m_heap);
  27. copy->function = function;
  28. copy->realm = realm;
  29. copy->script_or_module = script_or_module;
  30. copy->lexical_environment = lexical_environment;
  31. copy->variable_environment = variable_environment;
  32. copy->private_environment = private_environment;
  33. copy->program_counter = program_counter;
  34. copy->function_name = function_name;
  35. copy->this_value = this_value;
  36. copy->is_strict_mode = is_strict_mode;
  37. copy->executable = executable;
  38. copy->arguments = arguments;
  39. copy->passed_argument_count = passed_argument_count;
  40. copy->registers_and_constants_and_locals = registers_and_constants_and_locals;
  41. copy->unwind_contexts = unwind_contexts;
  42. copy->saved_lexical_environments = saved_lexical_environments;
  43. copy->previously_scheduled_jumps = previously_scheduled_jumps;
  44. return copy;
  45. }
  46. void ExecutionContext::visit_edges(Cell::Visitor& visitor)
  47. {
  48. visitor.visit(function);
  49. visitor.visit(realm);
  50. visitor.visit(variable_environment);
  51. visitor.visit(lexical_environment);
  52. visitor.visit(private_environment);
  53. visitor.visit(context_owner);
  54. visitor.visit(this_value);
  55. visitor.visit(executable);
  56. visitor.visit(function_name);
  57. visitor.visit(arguments);
  58. visitor.visit(registers_and_constants_and_locals);
  59. for (auto& context : unwind_contexts) {
  60. visitor.visit(context.lexical_environment);
  61. }
  62. visitor.visit(saved_lexical_environments);
  63. script_or_module.visit(
  64. [](Empty) {},
  65. [&](auto& script_or_module) {
  66. visitor.visit(script_or_module);
  67. });
  68. }
  69. }