Op.cpp 2.9 KB

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  1. /*
  2. * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
  3. *
  4. * SPDX-License-Identifier: BSD-2-Clause
  5. */
  6. #include <LibJS/Bytecode/Interpreter.h>
  7. #include <LibJS/Bytecode/Op.h>
  8. #include <LibJS/Runtime/GlobalObject.h>
  9. #include <LibJS/Runtime/Value.h>
  10. namespace JS::Bytecode::Op {
  11. void Load::execute(Bytecode::Interpreter& interpreter) const
  12. {
  13. interpreter.reg(m_dst) = m_value;
  14. }
  15. void Add::execute(Bytecode::Interpreter& interpreter) const
  16. {
  17. interpreter.reg(m_dst) = add(interpreter.global_object(), interpreter.reg(m_src1), interpreter.reg(m_src2));
  18. }
  19. void Sub::execute(Bytecode::Interpreter& interpreter) const
  20. {
  21. interpreter.reg(m_dst) = sub(interpreter.global_object(), interpreter.reg(m_src1), interpreter.reg(m_src2));
  22. }
  23. void LessThan::execute(Bytecode::Interpreter& interpreter) const
  24. {
  25. interpreter.reg(m_dst) = less_than(interpreter.global_object(), interpreter.reg(m_src1), interpreter.reg(m_src2));
  26. }
  27. void NewString::execute(Bytecode::Interpreter& interpreter) const
  28. {
  29. interpreter.reg(m_dst) = js_string(interpreter.vm(), m_string);
  30. }
  31. void GetVariable::execute(Bytecode::Interpreter& interpreter) const
  32. {
  33. interpreter.reg(m_dst) = interpreter.vm().get_variable(m_identifier, interpreter.global_object());
  34. }
  35. void SetVariable::execute(Bytecode::Interpreter& interpreter) const
  36. {
  37. interpreter.vm().set_variable(m_identifier, interpreter.reg(m_src), interpreter.global_object());
  38. }
  39. void Jump::execute(Bytecode::Interpreter& interpreter) const
  40. {
  41. interpreter.jump(m_target);
  42. }
  43. void JumpIfFalse::execute(Bytecode::Interpreter& interpreter) const
  44. {
  45. VERIFY(m_target.has_value());
  46. auto result = interpreter.reg(m_result);
  47. if (!result.as_bool())
  48. interpreter.jump(m_target.value());
  49. }
  50. String Load::to_string() const
  51. {
  52. return String::formatted("Load dst:{}, value:{}", m_dst, m_value.to_string_without_side_effects());
  53. }
  54. String Add::to_string() const
  55. {
  56. return String::formatted("Add dst:{}, src1:{}, src2:{}", m_dst, m_src1, m_src2);
  57. }
  58. String Sub::to_string() const
  59. {
  60. return String::formatted("Sub dst:{}, src1:{}, src2:{}", m_dst, m_src1, m_src2);
  61. }
  62. String LessThan::to_string() const
  63. {
  64. return String::formatted("LessThan dst:{}, src1:{}, src2:{}", m_dst, m_src1, m_src2);
  65. }
  66. String NewString::to_string() const
  67. {
  68. return String::formatted("NewString dst:{}, string:\"{}\"", m_dst, m_string);
  69. }
  70. String GetVariable::to_string() const
  71. {
  72. return String::formatted("GetVariable dst:{}, identifier:{}", m_dst, m_identifier);
  73. }
  74. String SetVariable::to_string() const
  75. {
  76. return String::formatted("SetVariable identifier:{}, src:{}", m_identifier, m_src);
  77. }
  78. String Jump::to_string() const
  79. {
  80. return String::formatted("Jump {}", m_target);
  81. }
  82. String JumpIfFalse::to_string() const
  83. {
  84. if (m_target.has_value())
  85. return String::formatted("JumpIfFalse result:{}, target:{}", m_result, m_target.value());
  86. return String::formatted("JumpIfFalse result:{}, target:<empty>", m_result);
  87. }
  88. }