{"id":3007,"date":"2013-09-05T06:45:48","date_gmt":"2013-09-04T21:45:48","guid":{"rendered":"http:\/\/peta.okechan.net\/blog\/?p=3007"},"modified":"2013-09-05T06:45:48","modified_gmt":"2013-09-04T21:45:48","slug":"6-4-%e3%83%a6%e3%83%bc%e3%82%b6%e5%ae%9a%e7%be%a9%e5%8d%98%e9%a0%85%e6%bc%94%e7%ae%97%e5%ad%90","status":"publish","type":"post","link":"https:\/\/peta.okechan.net\/blog\/archives\/3007","title":{"rendered":"6.4. \u30e6\u30fc\u30b6\u5b9a\u7fa9\u5358\u9805\u6f14\u7b97\u5b50"},"content":{"rendered":"<p><a href=\"https:\/\/peta.okechan.net\/blog\/archives\/2836\" title=\"LLVM\u306b\u3088\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u5b9f\u88c5\">LLVM\u306b\u3088\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u5b9f\u88c5\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u65e5\u672c\u8a9e\u8a33<\/a><br \/>\n\u7b2c6\u7ae0 \u4e07\u83ef\u93e1: \u8a00\u8a9e\u306e\u62e1\u5f35: \u30e6\u30fc\u30b6\u5b9a\u7fa9\u6f14\u7b97\u5b50<br \/>\n<a href=\"http:\/\/llvm.org\/docs\/tutorial\/LangImpl06.html#user-defined-unary-operators\" target=\"_blank\">\u7b2c4\u7bc0 \u30e6\u30fc\u30b6\u5b9a\u7fa9\u5358\u9805\u6f14\u7b97\u5b50<\/a><\/p>\n<p>\u73fe\u6642\u70b9\u3067\u306f\u4e07\u83ef\u93e1\u8a00\u8a9e\u3067\u306f\u3001\u5358\u9805\u6f14\u7b97\u5b50\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u305d\u308c\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u3082\u306e\u3092\u5168\u3066\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\n\u305f\u3060\u3057\u524d\u7bc0\u3067\u3001\u5b57\u53e5\u89e3\u6790\u5668\u306bunary\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u8ffd\u52a0\u3057\u3066\u3042\u308b\u306e\u3067\u3001\u3053\u3053\u3067\u5fc5\u8981\u306b\u306a\u308b\u306e\u306fAST\u30ce\u30fc\u30c9\u306e\u8ffd\u52a0\u304b\u3089\u3067\u3042\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ UnaryExprAST - \u5358\u9805\u6f14\u7b97\u5b50\u306e\u305f\u3081\u306e\u5f0f\u30af\u30e9\u30b9\u3002\r\nclass UnaryExprAST : public ExprAST {\r\n  char Opcode;\r\n  ExprAST *Operand;\r\npublic:\r\n  UnaryExprAST(char opcode, ExprAST *operand)\r\n    : Opcode(opcode), Operand(operand) {}\r\n  virtual Value *Codegen();\r\n};<\/pre>\n<p>\u3053\u306eAST\u30ce\u30fc\u30c9\u306f\u3001\u5b9f\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u4eca\u3068\u306a\u3063\u3066\u306f\u5206\u304b\u308a\u304d\u3063\u305f\u3082\u306e\u3067\u3042\u308b\u3002<br \/>\n\u3053\u308c\u306f\u3001\u5b50\u3092\u3072\u3068\u3064\u3057\u304b\u6301\u305f\u306a\u3044\u70b9\u3092\u9664\u3044\u3066\u3001\u4e8c\u9805\u6f14\u7b97\u5b50\u306eAST\u30ce\u30fc\u30c9\u306b\u9177\u4f3c\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3053\u308c\u3068\u3068\u3082\u306b\u3001\u69cb\u6587\u89e3\u6790\u306e\u30ed\u30b8\u30c3\u30af\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\n\u5358\u9805\u6f14\u7b97\u5b50\u306e\u69cb\u6587\u89e3\u6790\u306f\u5b9f\u306b\u7c21\u5358\u3067\u3042\u308b\u3002<br \/>\n\u305d\u306e\u305f\u3081\u306e\u95a2\u6570\u3092\u65b0\u305f\u306b\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ unary\r\n\/\/\/   ::= primary\r\n\/\/\/   ::= '!' unary\r\nstatic ExprAST *ParseUnary() {\r\n  \/\/ \u73fe\u5728\u306e\u30c8\u30fc\u30af\u30f3\u304c\u6f14\u7b97\u5b50\u3067\u306a\u3051\u308c\u3070\u3001\u305d\u308c\u306f\u30d7\u30e9\u30a4\u30de\u30ea\u5f0f\u3067\u3042\u308b\u3002\r\n  if (!isascii(CurTok) || CurTok == '(' || CurTok == ',')\r\n    return ParsePrimary();\r\n\r\n  \/\/ \u5358\u9805\u6f14\u7b97\u5b50\u306a\u3089\u3001\u8aad\u307f\u8fbc\u3080\u3002\r\n  int Opc = CurTok;\r\n  getNextToken();\r\n  if (ExprAST *Operand = ParseUnary())\r\n    return new UnaryExprAST(Opc, Operand);\r\n  return 0;\r\n}<\/pre>\n<p>\u6211\u3005\u304c\u8ffd\u52a0\u3057\u305f\u6587\u6cd5\u306f\u5b9f\u306b\u7d20\u76f4\u3067\u3042\u308b\u3002<br \/>\n\u30d7\u30e9\u30a4\u30de\u30ea\u5f0f\u306e\u89e3\u6790\u4e2d\u306b\u305d\u308c\u304c\u5358\u9805\u6f14\u7b97\u5b50\u3067\u3042\u308b\u3068\u5224\u660e\u3057\u305f\u3089\u3001\u305d\u306e\u6f14\u7b97\u5b50\u3092\u63a5\u982d\u8f9e\u3068\u3057\u3066\u53d6\u308a\u8fbc\u307f\u3001\u6b8b\u308a\u306e\u90e8\u5206\u3092\u4ed6\u306e\u5358\u9805\u6f14\u7b97\u5b50\u3068\u3057\u3066\u89e3\u6790\u3059\u308b\u3002<br \/>\n\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u591a\u91cd\u306e\u5358\u9805\u6f14\u7b97\u5b50\uff08\u4f8b\u3048\u3070\u3001&#8221;!!x&#8221;\uff09\u3092\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n\u5358\u9805\u6f14\u7b97\u5b50\u306e\u5834\u5408\u3001\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u3068\u304d\u306b\u3042\u3063\u305f\u3088\u3046\u306a\u66d6\u6627\u3055\u306e\u554f\u984c\u306f\u306a\u3044\u306e\u3067\u3001\u512a\u5148\u9806\u4f4d\u306e\u60c5\u5831\u306f\u5fc5\u8981\u306a\u3044\u3002<\/p>\n<p>\u3053\u306e\u95a2\u6570\u306e\u554f\u984c\u70b9\u306f\u3001\u3053\u306e\u95a2\u6570\u3092\u3069\u3053\u304b\u304b\u3089\u547c\u3070\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002<br \/>\n\u305d\u306e\u305f\u3081\u3001\u4ee5\u524d\u306eParsePrimary\u306e\u547c\u3073\u51fa\u3057\u5143\u3092\u3001ParseUanry\u3092\u547c\u3073\u51fa\u3059\u3088\u3046\u306b\u5909\u66f4\u3059\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ binoprhs\r\n\/\/\/   ::= ('+' unary)*\r\nstatic ExprAST *ParseBinOpRHS(int ExprPrec, ExprAST *LHS) {\r\n  ...\r\n    \/\/ \u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u5f8c\u306e\u5358\u9805\u5f0f\u3092\u89e3\u6790\u3059\u308b\u3002\r\n    ExprAST *RHS = ParseUnary();\r\n    if (!RHS) return 0;\r\n  ...\r\n}\r\n\/\/\/ expression\r\n\/\/\/   ::= unary binoprhs\r\n\/\/\/\r\nstatic ExprAST *ParseExpression() {\r\n  ExprAST *LHS = ParseUnary();\r\n  if (!LHS) return 0;\r\n\r\n  return ParseBinOpRHS(0, LHS);\r\n}<\/pre>\n<p>\u3053\u308c\u30892\u3064\u306e\u7c21\u5358\u306a\u5909\u66f4\u306b\u3088\u3063\u3066\u3001\u5358\u9805\u6f14\u7b97\u5b50\u3092\u69cb\u6587\u89e3\u6790\u3057\u3001AST\u3092\u69cb\u7bc9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<br \/>\n\u6b21\u306f\u3001\u5358\u9805\u6f14\u7b97\u5b50\u306e\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3092\u89e3\u6790\u3059\u308b\u305f\u3081\u306b\u3001\u69cb\u6587\u89e3\u6790\u5668\u306b\u5358\u9805\u6f14\u7b97\u5b50\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\n\u524d\u7bc0\u306e\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u30b3\u30fc\u30c9\u3092\u62e1\u5f35\u3059\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ prototype\r\n\/\/\/   ::= id '(' id* ')'\r\n\/\/\/   ::= binary LETTER number? (id, id)\r\n\/\/\/   ::= unary LETTER (id)\r\nstatic PrototypeAST *ParsePrototype() {\r\n  std::string FnName;\r\n\r\n  unsigned Kind = 0;  \/\/ 0 = \u8b58\u5225\u5b50, 1 = \u5358\u9805\u6f14\u7b97\u5b50, 2 = \u4e8c\u9805\u6f14\u7b97\u5b50\u3002\r\n  unsigned BinaryPrecedence = 30;\r\n\r\n  switch (CurTok) {\r\n  default:\r\n    return ErrorP(&quot;Expected function name in prototype&quot;);\r\n  case tok_identifier:\r\n    FnName = IdentifierStr;\r\n    Kind = 0;\r\n    getNextToken();\r\n    break;\r\n  case tok_unary:\r\n    getNextToken();\r\n    if (!isascii(CurTok))\r\n      return ErrorP(&quot;Expected unary operator&quot;);\r\n    FnName = &quot;unary&quot;;\r\n    FnName += (char)CurTok;\r\n    Kind = 1;\r\n    getNextToken();\r\n    break;\r\n  case tok_binary:\r\n    ...<\/pre>\n<p>\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u5834\u5408\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u6f14\u7b97\u5b50\u306e\u6587\u5b57\u3092\u542b\u3080\u540d\u524d\u3067\u5358\u9805\u6f14\u7b97\u5b50\u3092\u540d\u4ed8\u3051\u308b\u3002<br \/>\n\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u30b3\u30fc\u30c9\u751f\u6210\u6642\u306b\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n\u3042\u3068\u306f\u3001\u5358\u9805\u6f14\u7b97\u5b50\u306e\u305f\u3081\u306e\u30b3\u30fc\u30c9\u751f\u6210\u6a5f\u80fd\u306e\u8ffd\u52a0\u304c\u6b8b\u3063\u3066\u3044\u308b\u3002<br \/>\n\u305d\u308c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">Value *UnaryExprAST::Codegen() {\r\n  Value *OperandV = Operand-&gt;Codegen();\r\n  if (OperandV == 0) return 0;\r\n\r\n  Function *F = TheModule-&gt;getFunction(std::string(&quot;unary&quot;)+Opcode);\r\n  if (F == 0)\r\n    return ErrorV(&quot;Unknown unary operator&quot;);\r\n\r\n  return Builder.CreateCall(F, OperandV, &quot;unop&quot;);\r\n}<\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u3068\u304d\u306e\u3082\u306e\u3068\u4f3c\u3066\u3044\u308b\u304c\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u3042\u308b\u3002<br \/>\n\u7279\u306b\u7d44\u307f\u8fbc\u307f\u306e\u6f14\u7b97\u5b50\u3092\u6271\u3046\u5fc5\u8981\u304c\u306a\u3044\u306e\u3067\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u3042\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p><a href=\"https:\/\/peta.okechan.net\/blog\/archives\/2836\" title=\"LLVM\u306b\u3088\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u5b9f\u88c5\">LLVM\u306b\u3088\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u5b9f\u88c5\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u65e5\u672c\u8a9e\u8a33<\/a><br \/>\n\u7b2c6\u7ae0 \u4e07\u83ef\u93e1: \u8a00\u8a9e\u306e\u62e1\u5f35: \u30e6\u30fc\u30b6\u5b9a\u7fa9\u6f14\u7b97\u5b50<br \/>\n<a href=\"http:\/\/llvm.org\/docs\/tutorial\/LangImpl06.html#user-defined-unary-operators\" target=\"_blank\">\u7b2c4\u7bc0 \u30e6\u30fc\u30b6\u5b9a\u7fa9\u5358\u9805\u6f14\u7b97\u5b50<\/a><\/p>\n<p>\u73fe\u6642\u70b9\u3067\u306f\u4e07\u83ef\u93e1\u8a00\u8a9e\u3067\u306f\u3001\u5358\u9805\u6f14\u7b97\u5b50\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u305d\u308c\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u3082\u306e\u3092\u5168\u3066\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\n\u305f\u3060\u3057\u524d\u7bc0\u3067\u3001\u5b57\u53e5\u89e3\u6790\u5668\u306bunary\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u8ffd\u52a0\u3057\u3066\u3042\u308b\u306e\u3067\u3001\u3053\u3053\u3067\u5fc5\u8981\u306b\u306a\u308b\u306e\u306fAST\u30ce\u30fc\u30c9\u306e\u8ffd\u52a0\u304b\u3089\u3067\u3042\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ UnaryExprAST - \u5358\u9805\u6f14\u7b97\u5b50\u306e\u305f\u3081\u306e\u5f0f\u30af\u30e9\u30b9\u3002\r\nclass UnaryExprAST : public ExprAST {\r\n  char Opcode;\r\n  ExprAST *Operand;\r\npublic:\r\n  UnaryExprAST(char opcode, ExprAST *operand)\r\n    : Opcode(opcode), Operand(operand) {}\r\n  virtual Value *Codegen();\r\n};<\/pre>\n<p>\u3053\u306eAST\u30ce\u30fc\u30c9\u306f\u3001\u5b9f\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u4eca\u3068\u306a\u3063\u3066\u306f\u5206\u304b\u308a\u304d\u3063\u305f\u3082\u306e\u3067\u3042\u308b\u3002<br \/>\n\u3053\u308c\u306f\u3001\u5b50\u3092\u3072\u3068\u3064\u3057\u304b\u6301\u305f\u306a\u3044\u70b9\u3092\u9664\u3044\u3066\u3001\u4e8c\u9805\u6f14\u7b97\u5b50\u306eAST\u30ce\u30fc\u30c9\u306b\u9177\u4f3c\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3053\u308c\u3068\u3068\u3082\u306b\u3001\u69cb\u6587\u89e3\u6790\u306e\u30ed\u30b8\u30c3\u30af\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\n\u5358\u9805\u6f14\u7b97\u5b50\u306e\u69cb\u6587\u89e3\u6790\u306f\u5b9f\u306b\u7c21\u5358\u3067\u3042\u308b\u3002<br \/>\n\u305d\u306e\u305f\u3081\u306e\u95a2\u6570\u3092\u65b0\u305f\u306b\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ unary\r\n\/\/\/   ::= primary\r\n\/\/\/   ::= '!' unary\r\nstatic ExprAST *ParseUnary() {\r\n  \/\/ \u73fe\u5728\u306e\u30c8\u30fc\u30af\u30f3\u304c\u6f14\u7b97\u5b50\u3067\u306a\u3051\u308c\u3070\u3001\u305d\u308c\u306f\u30d7\u30e9\u30a4\u30de\u30ea\u5f0f\u3067\u3042\u308b\u3002\r\n  if (!isascii(CurTok) || CurTok == '(' || CurTok == ',')\r\n    return ParsePrimary();\r\n\r\n  \/\/ \u5358\u9805\u6f14\u7b97\u5b50\u306a\u3089\u3001\u8aad\u307f\u8fbc\u3080\u3002\r\n  int Opc = CurTok;\r\n  getNextToken();\r\n  if (ExprAST *Operand = ParseUnary())\r\n    return new UnaryExprAST(Opc, Operand);\r\n  return 0;\r\n}<\/pre>\n<p>\u6211\u3005\u304c\u8ffd\u52a0\u3057\u305f\u6587\u6cd5\u306f\u5b9f\u306b\u7d20\u76f4\u3067\u3042\u308b\u3002<br \/>\n\u30d7\u30e9\u30a4\u30de\u30ea\u5f0f\u306e\u89e3\u6790\u4e2d\u306b\u305d\u308c\u304c\u5358\u9805\u6f14\u7b97\u5b50\u3067\u3042\u308b\u3068\u5224\u660e\u3057\u305f\u3089\u3001\u305d\u306e\u6f14\u7b97\u5b50\u3092\u63a5\u982d\u8f9e\u3068\u3057\u3066\u53d6\u308a\u8fbc\u307f\u3001\u6b8b\u308a\u306e\u90e8\u5206\u3092\u4ed6\u306e\u5358\u9805\u6f14\u7b97\u5b50\u3068\u3057\u3066\u89e3\u6790\u3059\u308b\u3002<br \/>\n\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u591a\u91cd\u306e\u5358\u9805\u6f14\u7b97\u5b50\uff08\u4f8b\u3048\u3070\u3001&#8221;!!x&#8221;\uff09\u3092\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n\u5358\u9805\u6f14\u7b97\u5b50\u306e\u5834\u5408\u3001\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u3068\u304d\u306b\u3042\u3063\u305f\u3088\u3046\u306a\u66d6\u6627\u3055\u306e\u554f\u984c\u306f\u306a\u3044\u306e\u3067\u3001\u512a\u5148\u9806\u4f4d\u306e\u60c5\u5831\u306f\u5fc5\u8981\u306a\u3044\u3002<\/p>\n<p>\u3053\u306e\u95a2\u6570\u306e\u554f\u984c\u70b9\u306f\u3001\u3053\u306e\u95a2\u6570\u3092\u3069\u3053\u304b\u304b\u3089\u547c\u3070\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002<br \/>\n\u305d\u306e\u305f\u3081\u3001\u4ee5\u524d\u306eParsePrimary\u306e\u547c\u3073\u51fa\u3057\u5143\u3092\u3001ParseUanry\u3092\u547c\u3073\u51fa\u3059\u3088\u3046\u306b\u5909\u66f4\u3059\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ binoprhs\r\n\/\/\/   ::= ('+' unary)*\r\nstatic ExprAST *ParseBinOpRHS(int ExprPrec, ExprAST *LHS) {\r\n  ...\r\n    \/\/ \u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u5f8c\u306e\u5358\u9805\u5f0f\u3092\u89e3\u6790\u3059\u308b\u3002\r\n    ExprAST *RHS = ParseUnary();\r\n    if (!RHS) return 0;\r\n  ...\r\n}\r\n\/\/\/ expression\r\n\/\/\/   ::= unary binoprhs\r\n\/\/\/\r\nstatic ExprAST *ParseExpression() {\r\n  ExprAST *LHS = ParseUnary();\r\n  if (!LHS) return 0;\r\n\r\n  return ParseBinOpRHS(0, LHS);\r\n}<\/pre>\n<p>\u3053\u308c\u30892\u3064\u306e\u7c21\u5358\u306a\u5909\u66f4\u306b\u3088\u3063\u3066\u3001\u5358\u9805\u6f14\u7b97\u5b50\u3092\u69cb\u6587\u89e3\u6790\u3057\u3001AST\u3092\u69cb\u7bc9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<br \/>\n\u6b21\u306f\u3001\u5358\u9805\u6f14\u7b97\u5b50\u306e\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3092\u89e3\u6790\u3059\u308b\u305f\u3081\u306b\u3001\u69cb\u6587\u89e3\u6790\u5668\u306b\u5358\u9805\u6f14\u7b97\u5b50\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\n\u524d\u7bc0\u306e\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u30b3\u30fc\u30c9\u3092\u62e1\u5f35\u3059\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/\/ prototype\r\n\/\/\/   ::= id '(' id* ')'\r\n\/\/\/   ::= binary LETTER number? (id, id)\r\n\/\/\/   ::= unary LETTER (id)\r\nstatic PrototypeAST *ParsePrototype() {\r\n  std::string FnName;\r\n\r\n  unsigned Kind = 0;  \/\/ 0 = \u8b58\u5225\u5b50, 1 = \u5358\u9805\u6f14\u7b97\u5b50, 2 = \u4e8c\u9805\u6f14\u7b97\u5b50\u3002\r\n  unsigned BinaryPrecedence = 30;\r\n\r\n  switch (CurTok) {\r\n  default:\r\n    return ErrorP(&quot;Expected function name in prototype&quot;);\r\n  case tok_identifier:\r\n    FnName = IdentifierStr;\r\n    Kind = 0;\r\n    getNextToken();\r\n    break;\r\n  case tok_unary:\r\n    getNextToken();\r\n    if (!isascii(CurTok))\r\n      return ErrorP(&quot;Expected unary operator&quot;);\r\n    FnName = &quot;unary&quot;;\r\n    FnName += (char)CurTok;\r\n    Kind = 1;\r\n    getNextToken();\r\n    break;\r\n  case tok_binary:\r\n    ...<\/pre>\n<p>\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u5834\u5408\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u6f14\u7b97\u5b50\u306e\u6587\u5b57\u3092\u542b\u3080\u540d\u524d\u3067\u5358\u9805\u6f14\u7b97\u5b50\u3092\u540d\u4ed8\u3051\u308b\u3002<br \/>\n\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u30b3\u30fc\u30c9\u751f\u6210\u6642\u306b\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n\u3042\u3068\u306f\u3001\u5358\u9805\u6f14\u7b97\u5b50\u306e\u305f\u3081\u306e\u30b3\u30fc\u30c9\u751f\u6210\u6a5f\u80fd\u306e\u8ffd\u52a0\u304c\u6b8b\u3063\u3066\u3044\u308b\u3002<br \/>\n\u305d\u308c\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">Value *UnaryExprAST::Codegen() {\r\n  Value *OperandV = Operand-&gt;Codegen();\r\n  if (OperandV == 0) return 0;\r\n\r\n  Function *F = TheModule-&gt;getFunction(std::string(&quot;unary&quot;)+Opcode);\r\n  if (F == 0)\r\n    return ErrorV(&quot;Unknown unary operator&quot;);\r\n\r\n  return Builder.CreateCall(F, OperandV, &quot;unop&quot;);\r\n}<\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u3068\u304d\u306e\u3082\u306e\u3068\u4f3c\u3066\u3044\u308b\u304c\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u3042\u308b\u3002<br \/>\n\u7279\u306b\u7d44\u307f\u8fbc\u307f\u306e\u6f14\u7b97\u5b50\u3092\u6271\u3046\u5fc5\u8981\u304c\u306a\u3044\u306e\u3067\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u3042\u308b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[466,467],"class_list":["post-3007","post","type-post","status-publish","format-standard","hentry","category-tech","tag-kaleidoscope","tag-llvm"],"_links":{"self":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/3007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/comments?post=3007"}],"version-history":[{"count":0,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/3007\/revisions"}],"wp:attachment":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/media?parent=3007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/categories?post=3007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/tags?post=3007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}