PHP で JVM を実装して、 HelloWorld を出力してみる

Transcript

1. / / PHPerKaigi PHP JVM HelloWorld © - BASE, Inc.

2. © - BASE, Inc. Who am I? (@m m r

   ) BASE 6 SDVX

3. © - BASE, Inc. Who am I?

4. None

5. © - BASE, Inc. PHPerKaigi Builderscon

6. © - BASE, Inc. php-java/php-java

7. OSS

8. None

9. © - BASE, Inc. JVM PHP

10. © - BASE, Inc. Hello World

11. JVM

12. JVM

13. © - BASE, Inc. JVM JVM Java Virtual Machine Java

    JVM JRE JDK

14. JVM

15. <?php exec('java HelloWorld')

16. <?php exec('java HelloWorld')

17. © - BASE, Inc. JVM Java class class JVM

18. © - BASE, Inc. JVM JVM Java Virtual Machine Specification

    Oracle

19. © - BASE, Inc. JVM

20. © - BASE, Inc. JVM Java class

21. © - BASE, Inc. JVM

22. © - BASE, Inc. JVM class

23. JVM

24. © - BASE, Inc. Perl PHP JavaScript / Builderscon YAPC::Kyoto

    PHPerKaigi Qiita JVM

25. JVM

26. © - BASE, Inc. Rust Emacs Go Ruby rchaser gongoZ

    DQNEO Daiki Miura JVM

27. JVM

28. JVM,

29. PHP

30. None

31. © - BASE, Inc. fopen / fread OK

32. None

33. © - BASE, Inc. 16 short, unsigned short, integer, unsigned

    integer pack / unpack JVM
34. None

35. PHP

36. © - BASE, Inc. PHP int (- ^ ^ -

    ) bool string float, double array null etc...

37. Java

38. © - BASE, Inc. Java byte char short (- ^

    ^ - ) int (- ^ ^ - ) long (- ^ ^ - ) boolean float double
39. None

40. PHP Java

41. None
42. None

43. © - BASE, Inc. ( ) JVM invokevirtual iload /

    istore

44. Hello World

45. Java Virtual Machine Specification

46. © - BASE, Inc. JVM Spec Java Virtual Machine Specification

    JVM Spec JVM Spec Oracle JVM https://docs.oracle.com/javase/specs/ index.html

47. ClassFile Structure

48. © - BASE, Inc. ClassFile Structure

49. © - BASE, Inc. ClassFile Structure

50. © - BASE, Inc. JVM Spec u unsigned int u

    unsigned short

51. Hello World

52. © - BASE, Inc. Constant Pool Method Info Code Attribute

    Hello World

53. Method Info

54. © - BASE, Inc. Method Info

55. © - BASE, Inc. Method Info

56. Code Attribute

57. None

58. © - BASE, Inc. Code Attribute

59. © - BASE, Inc. Code Attribute

60. © - BASE, Inc. Code Attribute

61. © - BASE, Inc. Code Attribute

62. © - BASE, Inc. Code Attribute

63. © - BASE, Inc. Code Attribute

64. © - BASE, Inc. Code Attribute

65. None

66. © - BASE, Inc. JVM Spec code[code_length] JVM Spec

67. None
68. None
69. None

70. © - BASE, Inc. java.lang.System.out getstatic println invokevirtual

71. © - BASE, Inc. Constant Pool ldc return

72. 4

73. None

74. getstatic

75. © - BASE, Inc. getstatic getstatic getstatic Constant Pool unsigned

    short

76. © - BASE, Inc. getstatic getstatic <0xB > putstatic

77. © - BASE, Inc. getstatic

78. © - BASE, Inc. getstatic

79. © - BASE, Inc. getstatic

80. © - BASE, Inc. getstatic

81. © - BASE, Inc. getstatic

82. © - BASE, Inc. getstatic

83. © - BASE, Inc. getstatic

84. invokevirtual

85. © - BASE, Inc. invokevirtual invokevirtual Constant Pool

86. © - BASE, Inc. invokevirtual invokevirtual <0xB > invoke dynamic,

    special, interface, static

87. © - BASE, Inc. invokevirtual invoke JVM invoke invokedynamic invokeinterface

88. © - BASE, Inc. invokevirtual

89. © - BASE, Inc. invokevirtual

90. © - BASE, Inc. invokevirtual

91. © - BASE, Inc. invokevirtual

92. © - BASE, Inc. invokevirtual

93. © - BASE, Inc. invokevirtual

94. © - BASE, Inc. invokevirtual void

95. ldc

96. © - BASE, Inc. ldc ldc Constant Pool UTF Integer,

    short, byte Constant Pool unsigned byte

97. © - BASE, Inc. ldc ldc Long Double

98. © - BASE, Inc. ldc

99. © - BASE, Inc. ldc Constant Pool

100. © - BASE, Inc. ldc Constant Pool

101. © - BASE, Inc. ldc

102. return

103. © - BASE, Inc. return return void moniterenter return areturn,

     ireturn, freturn, dreturn

104. Hello World

105. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B

106. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B getstatic

107. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B unsigned short

108. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B ldc

109. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B unsigned byte Hello World Constant Pool

110. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B invokevirtual

111. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B unsigned short Constant Pool

112. © - BASE, Inc. Hello World B NN MM NN

     B NN MM B return
113. None

114. "java.lang.System"

115. © - BASE, Inc. "java.lang.System" Java java.lang.System PHP "java\lang\System" System

     "out"

116. © - BASE, Inc. "java.lang.System" ;

117. "out"

118. © - BASE, Inc. "out" PHP JVM static

119. © - BASE, Inc. "out"

120. © - BASE, Inc. "out"

121. "println" "java.io.PrintStream"

122. © - BASE, Inc. "java.io.PrintStream"

123. Hello World

124. DEMO

125. THANK YOU FOR YOUR LISTENING