{"id":115,"date":"2025-01-13T11:02:14","date_gmt":"2025-01-13T03:02:14","guid":{"rendered":"https:\/\/docs.skyvis.top\/?p=115"},"modified":"2025-01-18T16:57:01","modified_gmt":"2025-01-18T08:57:01","slug":"golang-ast-%e5%ae%9e%e7%8e%b0%e6%8e%a5%e5%8f%a3%e6%b3%a8%e8%a7%a3%e6%9d%83%e9%99%90%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/docs.skyvis.top\/index.php\/2025\/01\/13\/golang-ast-%e5%ae%9e%e7%8e%b0%e6%8e%a5%e5%8f%a3%e6%b3%a8%e8%a7%a3%e6%9d%83%e9%99%90%e6%8e%a7%e5%88%b6\/","title":{"rendered":"Golang AST \u5b9e\u73b0\u63a5\u53e3\u6ce8\u89e3\u6743\u9650\u63a7\u5236"},"content":{"rendered":"

\u4e00\u3001Golang AST\u57fa\u7840<\/h3>\n

1. \u4ec0\u4e48\u662fAST\u8bed\u6cd5\u6811<\/h4>\n

\u8ba9\u6211\u4eec\u4ece\u6240\u9700\u7684\u4e00\u4e9b\u77e5\u8bc6\u5f00\u59cb\u3002 \u4ec0\u4e48\u662f AST\uff08Abstract Syntax Tree\uff09\uff1f\u6839\u636e\u7ef4\u57fa\u767e\u79d1\uff1a<\/p>\n

\n \u5728\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\uff0c\u62bd\u8c61\u8bed\u6cd5\u6811 \uff08AST\uff09 \u6216\u7b80\u79f0\u8bed\u6cd5\u6811\u662f\u7528\u7f16\u7a0b\u8bed\u8a00\u7f16\u5199\u7684\u6e90\u4ee3\u7801\u7684\u62bd\u8c61\u8bed\u6cd5\u7ed3\u6784\u7684\u6811\u8868\u793a\u5f62\u5f0f\u3002\u6811\u7684\u6bcf\u4e2a\u8282\u70b9\u90fd\u8868\u793a\u6e90\u4ee3\u7801\u4e2d\u51fa\u73b0\u7684\u4e00\u4e2a\u6784\u9020\u3002\n<\/p><\/blockquote>\n

\u5927\u591a\u6570\u7f16\u8bd1\u5668\u548c\u89e3\u91ca\u5668\u4f7f\u7528Abstract Syntax Tree\u62bd\u8c61\u8bed\u6cd5\u6811\u4f5c\u4e3a\u6e90\u4ee3\u7801\u7684\u5185\u90e8\u8868\u793a\uff0c\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u89e3\u6790\u6811(parse tree)\u7684\u4e00\u4e2a\u7cbe\u7b80\u7248\u672c\u3002\u4e00\u68f5\u89e3\u6790\u6811\u662f\u5305\u542b\u4ee3\u7801\u6240\u6709\u8bed\u6cd5\u4fe1\u606f\u7684\u6811\u578b\u7ed3\u6784\uff0c\u5b83\u662f\u4ee3\u7801\u7684\u76f4\u63a5\u7ffb\u8bd1\u3002\u6240\u4ee5\u89e3\u6790\u6811\uff0c\u4e5f\u88ab\u6210\u4e3a\u5177\u8c61\u8bed\u6cd5\u6811\uff08Concret Syntax Tree, \u7b80\u79f0CST\uff09;\u800c\u62bd\u8c61\u8bed\u6cd5\u6811\uff0c\u5ffd\u7565\u4e86\u4e00\u4e9b\u89e3\u6790\u6811\u5305\u542b\u7684\u4e00\u4e9b\u8bed\u6cd5\u4fe1\u606f\uff0c\u5265\u79bb\u6389\u4e00\u4e9b\u4e0d\u91cd\u8981\u7684\u7ec6\u8282\uff0cAST \u901a\u5e38\u7701\u7565\u8bed\u6cd5\u6811\u4e2d\u7684\u5206\u53f7\u3001\u6362\u884c\u7b26\u3001\u7a7a\u683c\u3001\u5927\u62ec\u53f7\u3001\u65b9\u62ec\u53f7\u548c\u5706\u62ec\u53f7\u7b49\u3002<\/p>\n

\u4e3b\u8981\u7279\u70b9<\/strong>\uff1a
\n– \u62bd\u8c61\u5316\uff1aAST \u53ea\u5173\u5fc3\u7a0b\u5e8f\u7684\u8bed\u6cd5\u7ed3\u6784\uff0c\u800c\u4e0d\u5173\u5fc3\u5177\u4f53\u7684\u8bed\u6cd5\uff08\u5982\u62ec\u53f7\u3001\u5173\u952e\u5b57\u7b49\uff09\u3002
\n– \u6811\u5f62\u7ed3\u6784\uff1aAST \u662f\u4e00\u68f5\u6811\uff0c\u6bcf\u4e2a\u8282\u70b9\u8868\u793a\u7a0b\u5e8f\u4e2d\u7684\u4e00\u4e2a\u8bed\u6cd5\u5143\u7d20\uff08\u5982\u64cd\u4f5c\u7b26\u3001\u53d8\u91cf\u3001\u5e38\u91cf\u7b49\uff09\u3002
\n– \u5c42\u6b21\u5316\uff1a\u4e0d\u540c\u5c42\u7ea7\u7684\u8282\u70b9\u8868\u793a\u7a0b\u5e8f\u7684\u4e0d\u540c\u8bed\u6cd5\u5c42\u7ea7\uff0c\u6839\u8282\u70b9\u901a\u5e38\u662f\u7a0b\u5e8f\u7684\u8d77\u70b9\u6216\u6700\u5916\u5c42\u8868\u8fbe\u5f0f\u3002<\/p>\n

\u7ec4\u6210\u90e8\u5206<\/strong>\uff1a
\n– \u8282\u70b9\uff1a\u6bcf\u4e2a\u8282\u70b9\u4ee3\u8868\u4ee3\u7801\u4e2d\u7684\u4e00\u4e2a\u8bed\u6cd5\u6210\u5206\uff08\u5982\u8fd0\u7b97\u7b26\u3001\u64cd\u4f5c\u6570\u3001\u53d8\u91cf\u7b49\uff09\u3002
\n– \u8fb9\uff1a\u8fde\u63a5\u8282\u70b9\u7684\u8fb9\u4ee3\u8868\u8bed\u6cd5\u89c4\u5219\u4e2d\u7684\u5c42\u7ea7\u5173\u7cfb\u6216\u64cd\u4f5c\u987a\u5e8f\u3002<\/p>\n

AST \u7684\u5e94\u7528<\/strong>\uff1a
\n– \u7f16\u8bd1\u5668\uff1a\u7f16\u8bd1\u5668\u4f7f\u7528 AST \u8fdb\u884c\u8bed\u6cd5\u5206\u6790\u3001\u4f18\u5316\u548c\u4ee3\u7801\u751f\u6210\u3002
\n– \u9759\u6001\u4ee3\u7801\u5206\u6790\uff1a\u901a\u8fc7\u5206\u6790 AST\uff0c\u53ef\u4ee5\u68c0\u67e5\u4ee3\u7801\u4e2d\u7684\u6f5c\u5728\u95ee\u9898\u6216\u4e0d\u7b26\u5408\u7f16\u7801\u89c4\u8303\u7684\u90e8\u5206\u3002
\n– \u4ee3\u7801\u8f6c\u6362\uff1a\u901a\u8fc7\u4fee\u6539 AST \u53ef\u4ee5\u5b9e\u73b0\u4ee3\u7801\u91cd\u6784\u3001\u4f18\u5316\u6216\u8de8\u5e73\u53f0\u4ee3\u7801\u751f\u6210\u3002<\/p>\n

2. AST\u8bed\u6cd5\u6811\u7684\u751f\u6210<\/h4>\n

AST\uff08\u62bd\u8c61\u8bed\u6cd5\u6811\uff09\u89e3\u6790\u8fc7\u7a0b\u662f\u5c06\u6e90\u4ee3\u7801\u8f6c\u6362\u4e3a\u62bd\u8c61\u8bed\u6cd5\u6811\u7684\u8fc7\u7a0b\uff0c\u901a\u5e38\u7531\u8bcd\u6cd5\u5206\u6790<\/strong>\u3001\u8bed\u6cd5\u5206\u6790<\/strong>\u548c\u8bed\u4e49\u5206\u6790<\/strong>\u4e09\u4e2a\u4e3b\u8981\u6b65\u9aa4\u7ec4\u6210\u3002\u6bcf\u4e2a\u6b65\u9aa4\u90fd\u5bf9\u6e90\u4ee3\u7801\u8fdb\u884c\u5904\u7406\uff0c\u5e76\u9010\u6b65\u6784\u5efa\u51fa\u7a0b\u5e8f\u7684\u62bd\u8c61\u8bed\u6cd5\u6811\u3002
\n\"\"<\/p>\n

1. \u8bcd\u6cd5\u5206\u6790\uff08Lexical Analysis\uff09<\/h5>\n

\u8bcd\u6cd5\u5206\u6790\u662f\u5c06\u6e90\u4ee3\u7801\u7684\u5b57\u7b26\u6d41\u8f6c\u6362\u6210\u4e00\u7cfb\u5217\u7684\u8bcd\u6cd5\u5355\u5143\uff08Token\uff09\uff0c\u6bcf\u4e2a Token \u4ee3\u8868\u6e90\u4ee3\u7801\u4e2d\u7684\u4e00\u4e2a\u57fa\u672c\u6210\u5206\uff0c\u5982\u5173\u952e\u5b57\u3001\u6807\u8bc6\u7b26\u3001\u8fd0\u7b97\u7b26\u3001\u5e38\u91cf\u3001\u5206\u9694\u7b26\u7b49\u3002
\n\u6b65\u9aa4<\/strong>\uff1a
\n1. \u8f93\u5165\u6e90\u4ee3\u7801\u5b57\u7b26\u4e32\u3002
\n2. \u6839\u636e\u9884\u5b9a\u4e49\u7684\u89c4\u5219\uff08\u5982\u6b63\u5219\u8868\u8fbe\u5f0f\uff09\uff0c\u5c06\u4ee3\u7801\u5207\u5206\u6210 Token\u3002
\n3. \u8f93\u51fa Token \u6d41\uff08\u8bcd\u6cd5\u5355\u5143\u5217\u8868\uff09\u3002<\/p>\n

2. \u8bed\u6cd5\u5206\u6790\uff08Syntax Analysis\uff09<\/h5>\n

\u8bed\u6cd5\u5206\u6790\u5c06\u8bcd\u6cd5\u5206\u6790\u751f\u6210\u7684 Token \u5e8f\u5217\u6839\u636e\u8bed\u6cd5\u89c4\u5219\uff08\u901a\u5e38\u662f\u4e0a\u4e0b\u6587\u65e0\u5173\u6587\u6cd5\uff09\u6784\u5efa\u51fa\u62bd\u8c61\u8bed\u6cd5\u6811\uff08AST\uff09\u3002\u8bed\u6cd5\u5206\u6790\u5668\uff08Parser\uff09\u4f1a\u6839\u636e\u8fd9\u4e9b\u8bed\u6cd5\u89c4\u5219\u6765\u5224\u65ad\u4ee3\u7801\u662f\u5426\u7b26\u5408\u7a0b\u5e8f\u8bed\u8a00\u7684\u8bed\u6cd5\u89c4\u8303\uff0c\u5e76\u751f\u6210 AST\u3002
\n\u6b65\u9aa4<\/strong>\uff1a
\n1. \u8f93\u5165\uff1a\u4ece\u8bcd\u6cd5\u5206\u6790\u5668\u8f93\u51fa\u7684 Token \u6d41\u3002
\n2. \u4f7f\u7528\u6587\u6cd5\u89c4\u5219\uff08\u4f8b\u5982\uff0cBNF \u6216 EBNF\uff09\u5bf9 Token \u6d41\u8fdb\u884c\u5339\u914d\u3002
\n3. \u6784\u5efa\u62bd\u8c61\u8bed\u6cd5\u6811\uff0c\u5176\u4e2d\u6bcf\u4e2a\u8282\u70b9\u8868\u793a\u4e00\u4e2a\u8bed\u6cd5\u5143\u7d20\uff0c\u5982\u64cd\u4f5c\u7b26\u3001\u64cd\u4f5c\u6570\u7b49\u3002<\/p>\n

3. \u8bed\u4e49\u5206\u6790\uff08Semantic Analysis\uff09<\/h5>\n

\u8bed\u4e49\u5206\u6790\u7528\u4e8e\u68c0\u67e5\u7a0b\u5e8f\u7684\u8bed\u4e49\u6b63\u786e\u6027\uff0c\u5373\u786e\u4fdd\u7a0b\u5e8f\u7684\u903b\u8f91\u548c\u7c7b\u578b\u7b26\u5408\u8bed\u8a00\u7684\u89c4\u5219\u3002\u4f8b\u5982\uff0c\u7c7b\u578b\u68c0\u67e5\u3001\u53d8\u91cf\u4f5c\u7528\u57df\u68c0\u67e5\u7b49\u3002
\n\u6b65\u9aa4<\/strong>\uff1a
\n1. \u8f93\u5165\uff1a\u4ece\u8bed\u6cd5\u5206\u6790\u5f97\u5230\u7684 AST\u3002
\n2. \u68c0\u67e5\u7c7b\u578b\u5339\u914d\u3001\u53d8\u91cf\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\u3001\u64cd\u4f5c\u7b26\u7684\u9002\u7528\u6027\u7b49\u3002
\n3. \u8bed\u4e49\u5206\u6790\u5668\u5bf9 AST \u8fdb\u884c\u589e\u5f3a\uff0c\u786e\u4fdd\u7a0b\u5e8f\u7684\u903b\u8f91\u6b63\u786e\u3002<\/p>\n

4. \u751f\u6210 AST<\/h5>\n

\u6700\u7ec8\u7684 AST \u7531\u8bed\u6cd5\u5206\u6790\u5668\u751f\u6210\u3002\u5728 AST \u4e2d\uff0c\u8282\u70b9\u7684\u7ed3\u6784\u4e0e\u6e90\u4ee3\u7801\u7684\u8bed\u6cd5\u7ed3\u6784\u7d27\u5bc6\u76f8\u5173\u3002<\/p>\n

\u89e3\u6790\u8fc7\u7a0b\u603b\u7ed3<\/strong>\uff1a
\n1. \u8bcd\u6cd5\u5206\u6790\uff1a\u5c06\u6e90\u4ee3\u7801\u62c6\u5206\u6210\u4e00\u7cfb\u5217 Token\u3002
\n2. \u8bed\u6cd5\u5206\u6790\uff1a\u6839\u636e\u8bed\u6cd5\u89c4\u5219\u5c06 Token \u5e8f\u5217\u8f6c\u6362\u4e3a\u62bd\u8c61\u8bed\u6cd5\u6811\uff08AST\uff09\u3002
\n3. \u8bed\u4e49\u5206\u6790\uff1a\u68c0\u67e5\u8bed\u4e49\u9519\u8bef\uff0c\u589e\u5f3a AST\u3002<\/p>\n

3. Golang AST<\/h4>\n

\u4e86\u89e3\u4e86AST\u8bed\u6cd5\u6811\u7684\u5b9a\u4e49\u53ca\u751f\u6210\u8fc7\u7a0b\uff0c\u6211\u4eec\u5c31\u9700\u8981\u6df1\u5165Golang\u8bed\u8a00\u4e2d\u4e86\u89e3Golang\u5bf9\u4e8eAST\u8bed\u6cd5\u6811\u7684\u5b9e\u73b0\u53ca\u5b9a\u4e49\u3002<\/p>\n

1. Golang AST\u5b9a\u4e49<\/h5>\n

Golang\u4e2dAST\u76f8\u5173\u7684Package\u4e00\u5171\u6709\u56db\u4e2a\uff0c\u5206\u522b\u662f\uff1a<\/p>\n

\"go\/ast\" \/\/ Package ast declares the types used to represent syntax trees for Go\n\"go\/token\" \/\/ Package token defines constants representing the lexical tokens of the Go\n\"go\/parser\" \/\/ Package parser implements a parser for Go source files.\n\"go\/format\" \/\/ Package format implements standard formatting of Go source.\n<\/code><\/pre>\n
“go\/ast”\u5305\u5b9a\u4e49\u4e86AST\u76f8\u5173\u7684\u63a5\u53e3\u53ca\u7ed3\u6784\u4f53\u4ee5\u53caAST\u6811\u904d\u5386\u7684\u76f8\u5173\u65b9\u6cd5
\n“go\/token”\u5305\u5b9e\u73b0\u4e86AST\u8bed\u6cd5\u6811\u4e2dtoken\u7684\u5e38\u91cf\u5b9a\u4e49\u8bb0\u5fc6token\u76f8\u5173\u65b9\u6cd5
\n“go\/parser”\u5305\u5b9e\u73b0\u4e86\u6e90\u7801\u89e3\u6790\u4e3aAST\u8bed\u6cd5\u6811\u7684\u89e3\u6790\u5668\u76f8\u5173\u80fd\u529b
\n“go\/format”\u5305\u4e3b\u8981\u7528\u4e8e\u5b9e\u73b0\u5bf9\u751f\u6210\u4ee3\u7801\u6587\u672c\u7684\u683c\u5f0f\u5316<\/p>\n
\u65e2\u7136AST\u662f\u62bd\u8c61\u8bed\u6cd5\u6811\uff0c\u90a3\u5fc5\u7136\u7531\u4e00\u7cfb\u5217\u7684\u6811\u8282\u70b9\u7ec4\u6210\uff0c\u5728Golang\u8bed\u8a00\u4e2dAST\u7684\u8282\u70b9\u5206\u4e3a\u4e09\u4e2a\u7ec4\u6210\u90e8\u5206\uff1a
\nast.Expr – \u4ee3\u8868\u8868\u8fbe\u5f0f\u548c\u7c7b\u578b\u7684\u8282\u70b9 \uff08\u4f8b\u5982\uff1a\u5b57\u9762\u91cf\u3001\u53d8\u91cf\u3001\u64cd\u4f5c\u7b26\u7b49\u3002\uff09
\nast.Stmt – \u4ee3\u8868\u8bed\u53e5\u7c7b\u578b\u8282\u70b9\uff08\u4f8b\u5982\uff1a\u8d4b\u503c\u3001\u6761\u4ef6\u8bed\u53e5\u3001\u5faa\u73af\u8bed\u53e5\u7b49\uff09
\nast.Decl – \u4ee3\u8868\u58f0\u660e\u8282\u70b9\uff08\u4f8b\u5982\uff1aimport,struct,interface,func\uff09
\n\u8fd9\u4e09\u4e2a\u63a5\u53e3\u90fd\u7ee7\u627f\u4e86ast.Node\u63a5\u53e3\uff0c\u4f5c\u4e3aAST\u4e2d\u6240\u6709\u7ed3\u6784\u7684\u57fa\u7c7b
\n\"\"<\/p>\n
ast.Stmt \u6240\u6709\u5b50\u7c7b\n- \u8bed\u6cd5\u9519\u8bef\uff1aBadStmt\n- \u58f0\u660e\u8bed\u53e5\uff1aDeclStmt\n- \u7a7a\u767d\u8bed\u53e5\uff1aEmptyStmt\n- \u6807\u7b7e\u8bed\u53e5\uff1aLabeledStmt\n- \u8868\u8fbe\u5f0f\u8bed\u53e5\uff1aExprStmt\n- chan\u53d1\u9001\u8bed\u53e5\uff1aSendStmt\n- \u81ea\u589e\u8bed\u53e5\uff1aIncDecStmt\n- \u8d4b\u503c\u8bed\u53e5\uff1aAssignStmt\n- \u534f\u7a0b\u8bed\u53e5\uff1aGoStmt\n- defer\u8bed\u53e5\uff1aDeferStmt\n- \u8fd4\u56de\u8bed\u53e5\uff1aReturnStmt\n- \u5206\u652f\u8bed\u53e5\uff1aBranchStmt (break,continue,goto)\n- \u5757\u8bed\u53e5\uff1aBlockStmt\n- if\u8bed\u53e5\uff1aIfStmt (if else)\n- case\u8bed\u53e5\uff1aCaseClause\n- switch\u8bed\u53e5\uff1aSwitchStmt\n- \u7c7b\u578b\u8f6c\u6362\u8bed\u53e5\uff1aTypeSwitchStmt\n- switch-case\u5192\u53f7\uff1aCommClause\n- select\u8bed\u53e5\uff1aSelectStmt\n- for\u5faa\u73af\u8bed\u53e5\uff1aForStmt\n- range\u8bed\u53e5\uff1aRangeStmt\n<\/code><\/pre>\n
ast.Expr\n- \u8bed\u6cd5\u9519\u8bef\uff1aBadExpr\n- \u6570\u7ec4\u8868\u58f0\u660e\uff1aArrayType\n- \u7ed3\u6784\u4f53\u58f0\u660e\uff1aStructType\n- \u51fd\u6570\u7c7b\u578b\u58f0\u660e\uff1aFuncType\n- \u63a5\u53e3\u58f0\u660e\uff1aInterfaceType\n- map\u58f0\u660e\uff1aMapType\n- chan\u58f0\u660e\uff1aChanType\uff08chan,<-)\n- \u6807\u8bc6\u540d\uff1aIdent\n- \u7ed3\u6784\u8868\u8fbe\u5f0f\uff1aEllipsis\n- \u57fa\u672c\u7c7b\u578b\u58f0\u660e\uff1aBasicLit\uff08token.INT, token.FLOAT, token.IMAG, token.CHAR, or token.STRING\uff09\n- \u51fd\u6570\u5b57\u9762\u91cf\uff08\u533f\u540d\uff09\uff1aFuncLit\n- \u590d\u5408\u5b57\u9762\u91cf\uff1aCompositeLit\n- \u62ec\u53f7\u8868\u8fbe\u5f0f\uff1aParenExpr\n- \u9009\u62e9\u8868\u8fbe\u5f0f\uff1aSelectorExpr\n- \u7d22\u5f15\u8868\u8fbe\u5f0f\uff1aIndexExpr\n- \u591a\u7ef4\u7d22\u5f15\u8868\u8fbe\u5f0f\uff1aIndexListExpr\n- \u5207\u7247\u8868\u8fbe\u5f0f\uff1aSliceExpr\n- \u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u8868\u8fbe\u5f0f\uff1aTypeAssertExpr\n- \u51fd\u6570\u8c03\u7528\u8868\u8fbe\u5f0f\uff1aCallExpr\n- \u6307\u9488\u8868\u8fbe\u5f0f\uff1aStarExpr\n- \u4e00\u5143\u8868\u8fbe\u5f0f\uff1aUnaryExpr\uff08a*=b a+=b ...\uff09\n- \u4e8c\u5143\u8868\u8fbe\u5f0f\uff1aBinaryExpr\uff08c:=a+b\uff09\n- \u952e\u503c\u8868\u8fbe\u5f0f\uff1aKeyValueExpr\n<\/code><\/pre>\n
ast.Decl\n- \u9519\u8bef\u58f0\u660e\uff1aBadDecl\n- \u5e38\u7528\u58f0\u660e\uff1aGenDecl\uff08token.IMPORT\uff0ctoken.CONST\uff0ctoken.TYPE\uff0ctoken.VAR\uff09\n- \u51fd\u6570\u58f0\u660e\uff1aFuncDecl\n<\/code><\/pre>\n
Golang go\u6587\u4ef6\u89e3\u6790\u540e\u7684\u751f\u6210\u7684\u7ed3\u6784\u4f53\u5b9a\u4e49<\/p>\n
\/\/ast.File\ntype File struct {\n    Doc     *CommentGroup \/\/ associated documentation; or nil\n    Package token.Pos     \/\/ position of \"package\" keyword\n    Name    *Ident        \/\/ package name\n    Decls   []Decl        \/\/ top-level declarations; or nil\n\n    FileStart, FileEnd token.Pos       \/\/ start and end of entire file\n    Scope              *Scope          \/\/ package scope (this file only). Deprecated: see Object\n    Imports            []*ImportSpec   \/\/ imports in this file\n    Unresolved         []*Ident        \/\/ unresolved identifiers in this file. Deprecated: see Object\n    Comments           []*CommentGroup \/\/ list of all comments in the source file\n    GoVersion          string          \/\/ minimum Go version required by \/\/go:build or \/\/ +build directives\n}\n<\/code><\/pre>\n
\u5176\u4e2d\u91cd\u8981\u7684\u90e8\u5206\u4e3a\uff1aDecls\u5305\u542b\u4e86\u6240\u6709\u53d8\u91cf\u3001\u7ed3\u6784\u4f53\u53ca\u51fd\u6570\u7b49\u5185\u5bb9\u7684\u5b9a\u4e49\uff0cImports\u5305\u542b\u4e86\u6240\u6709\u5f15\u7528\u7684\u5305\uff0cComments\u5305\u542b\u4e86\u6240\u6709\u6ce8\u91ca\u5185\u5bb9\u3002\u8981\u60f3\u901a\u8fc7\u6784\u5efaAST\u5b9e\u73b0\u751f\u6210Golang\u4ee3\u7801\u6587\u4ef6\uff0c\u5c31\u9700\u8981\u6784\u5efa\u5b8c\u6574\u7684ast.File\u7ed3\u6784\u4f53\uff0c\u81f3\u4e8e\u600e\u4e48\u505a\u8fd8\u9700\u8981\u6211\u4eec\u5148\u4e86\u89e3\u5982\u4f55\u4f7f\u7528golang\u4e0a\u8ff0\u4e09\u4e2a\u5305\u4e2d\u7684api\u53bb\u89e3\u6790\u4e00\u4e2ago\u6587\u4ef6\u770b\u770b\u5177\u4f53\u6784\u6210\u3002<\/p>\n
2. Golang AST\u89e3\u6790\u8303\u4f8b<\/h5>\n
\u9996\u5148\u4e0a\u4e00\u6bb5\u7b80\u5355\u7684golang\u4ee3\u7801<\/p>\n
package hello\n\nimport \"fmt\"\n\nfunc greet() {\n    fmt.Println(\"Hello World!\")\n}\n<\/code><\/pre>\n
\u901a\u8fc7\u5982\u4e0b\u4ee3\u7801\u53ef\u4ee5\u5bf9\u4e0a\u8ff0\u7684\u4ee3\u7801\u8fdb\u884c\u89e3\u6790<\/p>\n
package main\n\nimport (\n    \"go\/ast\"\n    \"go\/parser\"\n    \"go\/token\"\n)\n\nfunc main() {\n    src := `\npackage hello\n\nimport \"fmt\"\n\nfunc greet() {\n    fmt.Println(\"Hello World!\")\n}\n`\n    \/\/ Create the AST by parsing src.\n    fset := token.NewFileSet() \/\/ positions are relative to fset\n    f, err := parser.ParseFile(fset, \"\", src, 0)\n    if err != nil {\n        panic(err)\n    }\n\n    \/\/ Print the AST.\n    ast.Print(fset, f)\n}\n<\/code><\/pre>\n
\u7f16\u8bd1\u6267\u884c\u540e\u8f93\u51fa\u5982\u4e0b\u5185\u5bb9\uff1a<\/p>\n
0  *ast.File {\n1  .  Package: 2:1\n2  .  Name: *ast.Ident {\n3  .  .  NamePos: 2:9\n4  .  .  Name: \"hello\"\n5  .  }\n6  .  Decls: []ast.Decl (len = 2) {\n7  .  .  0: *ast.GenDecl {\n8  .  .  .  TokPos: 4:1\n9  .  .  .  Tok: import\n10  .  .  .  Lparen: -\n11  .  .  .  Specs: []ast.Spec (len = 1) {\n12  .  .  .  .  0: *ast.ImportSpec {\n13  .  .  .  .  .  Path: *ast.BasicLit {\n14  .  .  .  .  .  .  ValuePos: 4:8\n15  .  .  .  .  .  .  Kind: STRING\n16  .  .  .  .  .  .  Value: \"\\\"fmt\\\"\"\n17  .  .  .  .  .  }\n18  .  .  .  .  .  EndPos: -\n19  .  .  .  .  }\n20  .  .  .  }\n21  .  .  .  Rparen: -\n22  .  .  }\n23  .  .  1: *ast.FuncDecl {\n24  .  .  .  Name: *ast.Ident {\n25  .  .  .  .  NamePos: 6:6\n26  .  .  .  .  Name: \"greet\"\n27  .  .  .  .  Obj: *ast.Object {\n28  .  .  .  .  .  Kind: func\n29  .  .  .  .  .  Name: \"greet\"\n30  .  .  .  .  .  Decl: *(obj @ 23)\n31  .  .  .  .  }\n32  .  .  .  }\n33  .  .  .  Type: *ast.FuncType {\n34  .  .  .  .  Func: 6:1\n35  .  .  .  .  Params: *ast.FieldList {\n36  .  .  .  .  .  Opening: 6:11\n37  .  .  .  .  .  Closing: 6:12\n38  .  .  .  .  }\n39  .  .  .  }\n40  .  .  .  Body: *ast.BlockStmt {\n41  .  .  .  .  Lbrace: 6:14\n42  .  .  .  .  List: []ast.Stmt (len = 1) {\n43  .  .  .  .  .  0: *ast.ExprStmt {\n44  .  .  .  .  .  .  X: *ast.CallExpr {\n45  .  .  .  .  .  .  .  Fun: *ast.SelectorExpr {\n46  .  .  .  .  .  .  .  .  X: *ast.Ident {\n47  .  .  .  .  .  .  .  .  .  NamePos: 7:2\n48  .  .  .  .  .  .  .  .  .  Name: \"fmt\"\n49  .  .  .  .  .  .  .  .  }\n50  .  .  .  .  .  .  .  .  Sel: *ast.Ident {\n51  .  .  .  .  .  .  .  .  .  NamePos: 7:6\n52  .  .  .  .  .  .  .  .  .  Name: \"Println\"\n53  .  .  .  .  .  .  .  .  }\n54  .  .  .  .  .  .  .  }\n55  .  .  .  .  .  .  .  Lparen: 7:13\n56  .  .  .  .  .  .  .  Args: []ast.Expr (len = 1) {\n57  .  .  .  .  .  .  .  .  0: *ast.BasicLit {\n58  .  .  .  .  .  .  .  .  .  ValuePos: 7:14\n59  .  .  .  .  .  .  .  .  .  Kind: STRING\n60  .  .  .  .  .  .  .  .  .  Value: \"\\\"Hello World!\\\"\"\n61  .  .  .  .  .  .  .  .  }\n62  .  .  .  .  .  .  .  }\n63  .  .  .  .  .  .  .  Ellipsis: -\n64  .  .  .  .  .  .  .  Rparen: 7:28\n65  .  .  .  .  .  .  }\n66  .  .  .  .  .  }\n67  .  .  .  .  }\n68  .  .  .  .  Rbrace: 8:1\n69  .  .  .  }\n70  .  .  }\n71  .  }\n72  .  Scope: *ast.Scope {\n73  .  .  Objects: map[string]*ast.Object (len = 1) {\n74  .  .  .  \"greet\": *(obj @ 27)\n75  .  .  }\n76  .  }\n77  .  Imports: []*ast.ImportSpec (len = 1) {\n78  .  .  0: *(obj @ 12)\n79  .  }\n80  .  Unresolved: []*ast.Ident (len = 1) {\n81  .  .  0: *(obj @ 46)\n82  .  }\n83  }\n<\/code><\/pre>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u901a\u8fc7\u4e0a\u8ff0\u7684\u793a\u4f8b\uff0c\u6211\u4eec\u5bf9\u4e8eAST\u7684\u7ed3\u6784\u4ee5\u53ca\u6e90\u7801\u5230AST\u7684\u6620\u5c04\u5173\u7cfb\u6709\u4e86\u8f83\u4e3a\u76f4\u89c2\u7684\u8ba4\u8bc6\uff0cAST\u5e76\u4e0d\u795e\u79d8\uff0c\u5b83\u662f\u7531\u4e00\u7cfb\u5217\u7ed3\u6784\u53ca\u5173\u7cfb\u6765\u8868\u8fbe\u4ee3\u7801\u7684\u4e00\u79cd\u65b9\u5f0f\uff0c\u65b9\u4fbf\u7f16\u8bd1\u7a0b\u5e8f\u53bb\u7406\u89e3\u6e90\u7801\u7684\u5185\u5bb9\u4ee5\u53ca\u8fdb\u884c\u540e\u7eed\u7684\u7f16\u8bd1\u64cd\u4f5c\u5c06\u4e4b\u751f\u6210\u4e3a\u8ba1\u7b97\u673a\u53ef\u4ee5\u8bc6\u522b\u7684\u4e8c\u8fdb\u5236\u7f16\u7801\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0a\u9762\u7684\u793a\u4f8b\u4ec5\u4ec5\u77e5\u8bc6\u5bf9AST\u8fdb\u884c\u4e86\u6253\u5370\uff0c\u60f3\u8981\u7cbe\u51c6\u7684\u5bf9AST\u8bed\u6cd5\u6811\u8fdb\u884c\u64cd\u4f5c\u6765\u8fbe\u5230\u4fee\u6539\u4ee3\u7801\u7684\u76ee\u7684\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u7684API\u6765\u8fdb\u884c\u3002\u5bf9\u4e8e\u4fee\u6539\u89e3\u6790\u6e90\u7801\u7684\u5e94\u7528\u573a\u666f\uff0c\u53ef\u4ee5\u4f7f\u7528“go\/ast”<\/strong>\u5305\u4e0b\u7684Inspect\u65b9\u6cd5\u5bf9AST\u8bed\u6cd5\u6811\u7684\u8282\u70b9\u8fdb\u884c\u9012\u5f52\u904d\u5386\u4ece\u800c\u8fbe\u5230\u8bfb\u53d6\u6240\u6709\u8282\u70b9\u8fdb\u884c\u81ea\u5b9a\u4e49\u8c03\u6574\u7684\u76ee\u7684\u3002\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5b9a\u4e49\u7ed3\u6784\u4f53\u7684\u65b9\u5f0f\u4ece\u53d8\u91cf\u3001\u8868\u8fbe\u5f0f\u3001\u65b9\u6cd5\u9010\u7ea7\u7684\u6784\u5efa\u51fa\u60f3\u8981\u7684\u6e90\u7801\u5e76\u901a\u8fc7“go\/format”<\/strong>\u5305\u6216“go\/printer”<\/strong>\u5305\u5c06AST\u8f6c\u5316\u4e3a\u6e90\u7801\u5b57\u7b26\u4e32\u3002<\/p>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u81f3\u6b64\u6211\u4eec\u57fa\u672c\u4e0a\u660e\u786e\u4e86AST\u7684\u57fa\u672c\u6982\u5ff5\u4ee5\u53caGolang\u4e2d\u4f7f\u7528AST\u7684\u57fa\u672c\u64cd\u4f5c\u53caAPI\uff0c\u5269\u4f59\u7684\u5c31\u662f\u7ed3\u5408\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u6765\u5bf9API\u8fdb\u884c\u7ec4\u5408\u5b9e\u73b0\u5404\u79cd\u9b54\u672f\u64cd\u4f5c\uff0c\u8fd9\u5c31\u9700\u8981\u5404\u4f4d\u81ea\u5df1\u53d1\u6325\u521b\u9020\u529b\u6765\u63a2\u7d22\u4e86\u3002\u8fd9\u91cc\u4e5f\u4f1a\u63d0\u4f9b\u4e00\u4e2a\u5229\u7528AST\u5b9e\u73b0Golang\u8bed\u8a00\u6ce8\u89e3\u80fd\u529b\u7684\u5e94\u7528\u573a\u666f\uff0c\u4e0b\u9762\u5c06\u4f1a\u5177\u4f53\u8fdb\u884c\u4ecb\u7ecd\u3002<\/p>\n
\u4e8c\u3001\u57fa\u4e8eAST\u5b9e\u73b0Golang\u6ce8\u89e3<\/h3>\n
1. \u4ec0\u4e48\u662f\u6ce8\u89e3<\/h4>\n
\u6ce8\u89e3\uff08Annotation\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u63d0\u4f9b\u5143\u6570\u636e\u7684\u673a\u5236\uff0c\u901a\u5e38\u7528\u4e8e\u7f16\u7a0b\u8bed\u8a00\u4e2d\u3002\u5728\u7a0b\u5e8f\u6e90\u4ee3\u7801\u4e2d\uff0c\u6ce8\u89e3\u662f\u5bf9\u4ee3\u7801\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u5b83\u672c\u8eab\u5e76\u4e0d\u4f1a\u5f71\u54cd\u4ee3\u7801\u7684\u6267\u884c\u7ed3\u679c\uff0c\u4f46\u53ef\u4ee5\u7528\u4e8e\u5de5\u5177\u6216\u6846\u67b6\u8fdb\u884c\u5904\u7406\u3002\u6ce8\u89e3\u901a\u5e38\u7528\u4e8e\u63cf\u8ff0\u4ee3\u7801\u7684\u884c\u4e3a\u3001\u5c5e\u6027\u6216\u63d0\u4f9b\u989d\u5916\u7684\u914d\u7f6e\u548c\u8bf4\u660e\u3002\u6700\u5178\u578b\u7684\u91c7\u7528\u6ce8\u89e3\u8fdb\u884c\u7f16\u7a0b\u7684\u8bed\u8a00\u5c31\u662fJava\u3002\u4f8b\u5982\u5e38\u7528\u7684springboot\u6846\u67b6\u5185\u90e8\u96c6\u6210\u4e86\u5927\u91cf\u7684\u6ce8\u89e3\u7528\u4e8e\u5b9e\u73b0\u5404\u7c7b\u6846\u67b6\u529f\u80fd\uff0c\u6781\u5927\u7684\u7b80\u5316\u4e86\u5f00\u53d1\u548c\u91cd\u590d\u6027\u7f16\u7a0b\u3002
\n\u6ce8\u89e3\u7684\u5b9e\u73b0\u539f\u7406\u4f9d\u8d56\u4e8e\u7f16\u8bd1\u65f6\u6216\u8fd0\u884c\u65f6\u5bf9\u6ce8\u89e3\u7684\u5904\u7406\u673a\u5236\u3002\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u5f0f\u4f1a\u4f9d\u636e\u7f16\u7a0b\u8bed\u8a00\u7684\u4e0d\u540c\u6709\u6240\u53d8\u5316\uff0c\u4e0b\u9762\u4ee5 Java \u4e3a\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n
1. \u6ce8\u89e3\u7684\u5b9a\u4e49<\/h5>\n
\u6ce8\u89e3\u662f\u901a\u8fc7\u5173\u952e\u5b57 @interface \u5728 Java \u4e2d\u5b9a\u4e49\u7684\u3002\u4f8b\u5982\uff1a<\/p>\n
public @interface MyAnnotation {\n    String value() default \"default value\";\n}\n<\/code><\/pre>\n
\u8fd9\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3a MyAnnotation \u7684\u6ce8\u89e3\uff0c\u5b83\u6709\u4e00\u4e2a\u540d\u4e3a value \u7684\u6210\u5458\uff0c\u4e14\u5177\u6709\u9ed8\u8ba4\u503c\u3002<\/p>\n
2. \u6ce8\u89e3\u7684\u4f7f\u7528<\/h5>\n
\u6ce8\u89e3\u53ef\u4ee5\u5e94\u7528\u5230\u7c7b\u3001\u65b9\u6cd5\u3001\u5b57\u6bb5\u3001\u53c2\u6570\u7b49\u5730\u65b9\u3002\u4f8b\u5982\uff1a<\/p>\n
@MyAnnotation(value = \"example\")\npublic class MyClass {\n    @MyAnnotation\n    public void myMethod() {\n        \/\/ Method implementation\n    }\n}\n<\/code><\/pre>\n
\u8fd9\u91cc\uff0cMyAnnotation \u88ab\u7528\u6765\u6ce8\u89e3\u7c7b MyClass \u548c\u65b9\u6cd5 myMethod\u3002<\/p>\n
3. \u6ce8\u89e3\u7684\u5904\u7406<\/h5>\n
\u6ce8\u89e3\u672c\u8eab\u5e76\u4e0d\u76f4\u63a5\u5f71\u54cd\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u5b83\u9700\u8981\u901a\u8fc7\u67d0\u4e9b\u673a\u5236\u8fdb\u884c\u5904\u7406\u3002\u8fd9\u4e9b\u673a\u5236\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\uff1a
\na. \u7f16\u8bd1\u65f6\u5904\u7406\uff08Compile-Time Processing\uff09<\/strong>
\n\u4e00\u4e9b\u6ce8\u89e3\u4f1a\u5728\u7f16\u8bd1\u65f6\u901a\u8fc7\u5de5\u5177\uff08\u5982 apt\uff0cAnnotation Processing Tool\uff09\u8fdb\u884c\u5904\u7406\u3002\u4f8b\u5982\uff0c\u5728\u7f16\u8bd1\u65f6\uff0c\u7f16\u8bd1\u5668\u53ef\u4ee5\u901a\u8fc7\u6ce8\u89e3\u6765\u751f\u6210\u4ee3\u7801\u3001\u8b66\u544a\u6216\u8005\u68c0\u67e5\u9519\u8bef\u3002
\nJava \u63d0\u4f9b\u4e86\u4e00\u4e2a\u6807\u51c6\u7684\u6ce8\u89e3\u5904\u7406\u5de5\u5177 APT\uff08Annotation Processing Tool\uff09\uff0c\u53ef\u4ee5\u5728\u7f16\u8bd1\u65f6\u89e3\u6790\u6ce8\u89e3\uff0c\u6267\u884c\u7279\u5b9a\u7684\u903b\u8f91\u3002
\nb. \u8fd0\u884c\u65f6\u5904\u7406\uff08Runtime Processing\uff09<\/strong>
\n\u6709\u4e9b\u6ce8\u89e3\u4f1a\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u901a\u8fc7\u53cd\u5c04\u673a\u5236\u8fdb\u884c\u5904\u7406\u3002\u901a\u8fc7\u53cd\u5c04\uff0c\u7a0b\u5e8f\u53ef\u4ee5\u8bbf\u95ee\u7c7b\u3001\u65b9\u6cd5\u3001\u5b57\u6bb5\u7b49\u7684\u6ce8\u89e3\uff0c\u4ece\u800c\u6267\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002
\n\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 Class.getAnnotations()\u3001Method.getAnnotations() \u7b49\u65b9\u6cd5\u83b7\u53d6\u7c7b\u6216\u65b9\u6cd5\u4e0a\u7684\u6ce8\u89e3\u3002\u4f8b\u5982\uff1a<\/p>\n
Method method = MyClass.class.getMethod(\"myMethod\");\nif (method.isAnnotationPresent(MyAnnotation.class)) {\n    MyAnnotation annotation = method.getAnnotation(MyAnnotation.class);\n    System.out.println(annotation.value());\n}\n<\/code><\/pre>\n
4. \u6ce8\u89e3\u7684\u751f\u547d\u5468\u671f<\/h5>\n
\u6ce8\u89e3\u6709\u4e0d\u540c\u7684\u751f\u547d\u5468\u671f\uff0c\u5b83\u51b3\u5b9a\u4e86\u6ce8\u89e3\u4f55\u65f6\u6709\u6548\u3002\u751f\u547d\u5468\u671f\u901a\u5e38\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a
\n– SOURCE<\/strong>\uff1a\u6ce8\u89e3\u53ea\u5b58\u5728\u4e8e\u6e90\u4ee3\u7801\u4e2d\uff0c\u5728\u7f16\u8bd1\u65f6\u88ab\u4e22\u5f03\u3002
\n– CLASS<\/strong>\uff1a\u6ce8\u89e3\u4fdd\u7559\u5230\u5b57\u8282\u7801\u4e2d\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6ce8\u89e3\u7684\u4fdd\u7559\u7b56\u7565\u662f CLASS\uff0c\u5b83\u53ef\u4ee5\u88ab\u7f16\u8bd1\u5668\u5904\u7406\uff0c\u4f46\u4e0d\u4e00\u5b9a\u5728\u8fd0\u884c\u65f6\u53ef\u7528\u3002
\n– RUNTIME<\/strong>\uff1a\u6ce8\u89e3\u5728\u8fd0\u884c\u65f6\u4f9d\u7136\u5b58\u5728\uff0c\u53ef\u4ee5\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u5230\u3002<\/p>\n
\u5b9a\u4e49\u6ce8\u89e3\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 @Retention \u6765\u6307\u5b9a\u6ce8\u89e3\u7684\u751f\u547d\u5468\u671f\uff1a<\/p>\n
@Retention(RetentionPolicy.RUNTIME)  \/\/ \u4f7f\u6ce8\u89e3\u5728\u8fd0\u884c\u65f6\u53ef\u7528\npublic @interface MyAnnotation {}\n<\/code><\/pre>\n
5. \u6ce8\u89e3\u7684\u5143\u6ce8\u89e3<\/h5>\n
\u5143\u6ce8\u89e3\u662f\u7528\u4e8e\u5b9a\u4e49\u5176\u4ed6\u6ce8\u89e3\u7684\u6ce8\u89e3\u3002\u4f8b\u5982\uff1a
\n@Retention<\/strong>\uff1a\u5b9a\u4e49\u6ce8\u89e3\u7684\u751f\u547d\u5468\u671f\u3002
\n@Target<\/strong>\uff1a\u5b9a\u4e49\u6ce8\u89e3\u7684\u9002\u7528\u8303\u56f4\uff08\u7c7b\u3001\u65b9\u6cd5\u3001\u5b57\u6bb5\u7b49\uff09\u3002
\n@Documented<\/strong>\uff1a\u6307\u793a\u6ce8\u89e3\u5e94\u5305\u542b\u5728 Java API \u6587\u6863\u4e2d\u3002
\n@Inherited<\/strong>\uff1a\u8868\u793a\u5b50\u7c7b\u53ef\u4ee5\u7ee7\u627f\u7236\u7c7b\u7684\u6ce8\u89e3\u3002<\/p>\n
\u603b\u7ed3<\/strong>
\n\u6ce8\u89e3\u7684\u5b9e\u73b0\u539f\u7406\u57fa\u4e8e\u4e24\u4e2a\u6838\u5fc3\u673a\u5236\uff1a
\n\u5143\u6570\u636e\u5b58\u50a8<\/strong>\uff1a\u6ce8\u89e3\u672c\u8eab\u4f5c\u4e3a\u5143\u6570\u636e\u88ab\u5b58\u50a8\u5728\u6e90\u4ee3\u7801\u3001\u5b57\u8282\u7801\u6216\u8fd0\u884c\u65f6\u73af\u5883\u4e2d\u3002
\n\u6ce8\u89e3\u5904\u7406<\/strong>\uff1a\u901a\u8fc7\u7f16\u8bd1\u65f6\u5de5\u5177\u6216\u8fd0\u884c\u65f6\u53cd\u5c04\u5bf9\u6ce8\u89e3\u8fdb\u884c\u5904\u7406\uff0c\u8fbe\u5230\u7279\u5b9a\u529f\u80fd\uff08\u5982\u4ee3\u7801\u751f\u6210\u3001\u903b\u8f91\u6267\u884c\u7b49\uff09\u3002
\n\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6ce8\u89e3\u5e38\u5e38\u7ed3\u5408\u53cd\u5c04\u3001\u5de5\u5177\u751f\u6210\u3001\u6846\u67b6\u8bbe\u8ba1\u7b49\u6280\u672f\u6765\u589e\u5f3a\u4ee3\u7801\u7684\u7075\u6d3b\u6027\u548c\u53ef\u914d\u7f6e\u6027\u3002<\/p>\n
2. \u5982\u4f55\u5b9a\u4e49\u4e00\u4e2aGolang\u6ce8\u89e3<\/h4>\n
\u7531\u4e8e\u6211\u4eec\u65e0\u6cd5\u81ea\u5b9a\u4e49golang\u7684\u8bed\u6cd5\uff0c\u6240\u4ee5\u60f3\u8981\u5b9e\u73b0\u6ce8\u89e3\u6700\u597d\u7684\u65b9\u5f0f\u5c31\u662f\u901a\u8fc7\u6ce8\u91ca\u7684\u65b9\u5f0f\uff0c\u91c7\u7528\u7279\u6b8a\u7684\u683c\u5f0f\u8fdb\u884c\u6ce8\u91ca\uff0c\u5e76\u5728\u6ce8\u91ca\u4e2d\u6dfb\u52a0\u6211\u4eec\u9700\u8981\u7684\u5143\u6570\u636e\u6765\u5b9e\u73b0\u7c7b\u4f3c\u6ce8\u89e3\u7684\u8868\u8fbe\u65b9\u5f0f\uff0c\u5e76\u901a\u8fc7AST\u8bed\u6cd5\u89e3\u6790\u8bfb\u53d6\u6ce8\u91ca\u5e76\u6839\u636e\u6211\u4eec\u5b9a\u4e49\u7684\u7279\u6b8a\u683c\u5f0f\u6765\u63d0\u53d6\u6ce8\u89e3\u7684\u4fe1\u606f\u4ee5\u53ca\u88ab\u6ce8\u89e3\u7684\u6587\u4ef6\u3001\u65b9\u6cd5\u7b49\u5185\u5bb9\u4ece\u800c\u5b9e\u73b0\u6ce8\u89e3\u60f3\u8981\u8868\u8fbe\u7684\u529f\u80fd\u3002
\nAST\u8bed\u6cd5\u6811\u89e3\u6790\u51fa\u7684\u6ce8\u91ca\u90fd\u662f\u7eaf\u6587\u672c\u7684\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u6839\u636e\u81ea\u8eab\u9700\u6c42\u6765\u5b9a\u4e49\u683c\u5f0f\u4ee5\u4fbf\u8fdb\u884c\u6b63\u5219\u5339\u914d\u4ee5\u63d0\u53d6\u6ce8\u91ca\u4e2d\u7684\u5fc5\u8981\u4fe1\u606f\u3002<\/p>\n
1.\u5b9a\u4e49\u4ec0\u4e48\u662f\u6ce8\u89e3<\/h5>\n
    \n
  1. \u6ce8\u89e3\u6807\u8bb0<\/strong>
    \n\u6839\u636e\u4e0a\u8ff0\u7684\u4e86\u89e3\uff0c\u6211\u4eec\u77e5\u9053Java\u4e2d\u7684\u6ce8\u89e3\u7531\u201c@<\/strong>\u201d\u6765\u6807\u8bb0\u7684\uff0c\u56e0\u6b64\u540c\u6837\u7684\uff0c\u6211\u4eec\u4e5f\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u6807\u8bc6\u8be5\u6ce8\u91ca\u662f\u6ce8\u89e3\u7684\u7b26\u53f7\u6216\u7279\u6b8a\u5185\u5bb9\uff0c\u8fd9\u91cc\u6211\u4eec\u91c7\u7528golang\u4e2d\u6bd4\u8f83\u901a\u7528\u7684\u683c\u5f0f \u201cgo:<\/strong>\u201d\u6765\u6807\u8bb0<\/li>\n
  2. \u6ce8\u89e3\u7c7b\u578b<\/strong>
    \n\u6ce8\u89e3\u7c7b\u578b\u4e5f\u5c31\u662f\u6211\u4eec\u8981\u5b9a\u4e49\u6ce8\u89e3\u662f\u7528\u6765\u5e72\u4ec0\u4e48\u7684\uff0c\u6216\u8005\u8bf4\u60f3\u8981\u5bf9\u6ce8\u89e3\u6807\u8bb0\u7684\u5bf9\u8c61\u505a\u51fa\u4ec0\u4e48\u64cd\u4f5c\uff0c\u4f8b\u5982Java\u4e2d\u201c@Override<\/strong>\u201d\u6ce8\u89e3\u6807\u8bc6\u5bf9\u65b9\u6cd5\u6216\u5b57\u6bb5\u7b49\u8fdb\u884c\u91cd\u5199\u3002\u8fd9\u91cc\u6211\u4eec\u5728golang\u4e2d\u9009\u62e9\u6784\u5efa\u4e00\u4e2a\u8303\u4f8b:
    \n\u5b9a\u4e49 “go:controller<\/strong>” \u7528\u6765\u6807\u8bb0go\u6587\u4ef6\u4e3a\u4e00\u4e2aweb\u63a5\u53e3\u63a7\u5236\u5c42\uff0c\u6807\u8bc6\u8fd9\u4e2ago\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e86\u5404\u79cd\u7684REST\u63a5\u53e3\uff1b
    \n\u5b9a\u4e49 “go:interface<\/strong>” \u7528\u6765\u6807\u8bb0\u4e00\u4e2agolang\u7f16\u5199\u7684RESTful\u63a5\u53e3<\/li>\n<\/ol>\n
    \/\/ go:controller\npackage server\nimport (\n  \"any\"\n)\n\/\/ go:interface\nfunc (srv *Server) Hello(ctx server.Ctx) error {\n      \/\/ do something\n}\n<\/code><\/pre>\n
      \n
    1. \u6ce8\u89e3\u53c2\u6570<\/strong>
      \n\u4f46\u4e00\u4e2a\u6ce8\u89e3\u53ef\u80fd\u5e76\u4e0d\u80fd\u6ee1\u8db3\u6211\u4eec\u7684\u5f00\u53d1\u9700\u8981\uff0c\u6240\u4ee5\u7ed9\u6ce8\u89e3\u6dfb\u52a0\u53c2\u6570\u652f\u6301\u5c31\u5f88\u6709\u5fc5\u8981\u4e86\uff0c\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8e\u6ce8\u89e3\u7684\u63d0\u53d6\u6838\u5fc3\u80fd\u529b\u9760\u7684\u662f\u6b63\u5219\u63d0\u53d6\uff0c\u56e0\u6b64\uff0c\u5728\u8fdb\u884c\u53c2\u6570\u547d\u540d\u65f6\u9700\u8981\u8fdb\u884c\u53c2\u6570\u540d\u7684\u663e\u793a\u5b9a\u4e49\uff0c\u4ee5\u65b9\u4fbfAST\u89e3\u6790\u8fc7\u7a0b\u4e2d\u80fd\u591f\u4e89\u53d6\u7684\u63d0\u53d6\u5230\u9700\u8981\u7684\u5185\u5bb9\u3002<\/li>\n<\/ol>\n
      \/\/ go:controller(path=\"\/hello\",name=\"hello\")\npackage server\nimport (\n  \"any\"\n)\n\/\/ go:interface(method=\"GET\",path=\"\/greet\",auth=\"*\",name=\"greet\")\nfunc (srv *Server) Hello(ctx server.Ctx) error {\n      \/\/ do something\n}\n<\/code><\/pre>\n
      \u4e0a\u8ff0\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5bf9\u6ce8\u89e3\u6dfb\u52a0\u4e86\u53c2\u6570\u5b9a\u4e49\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u5f97\u5230\u4e86\u4e00\u4e2a\u7c7b\u4f3cSpringBoot\u6846\u67b6controller\u5b9a\u4e49\u7684go\u6587\u4ef6\uff0c\u4ece\u6ce8\u89e3\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u660e\u786e\u7684\u77e5\u9053\u8fd9\u662f\u4e00\u4e2apath\u4e3a\/hello<\/strong>\u7684\u63a5\u53e3\u5c42\uff0c\u5e76\u4e14\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3agreet<\/strong>\u7684GET<\/strong>\u63a5\u53e3\uff0c\u8bbf\u95ee\u8def\u5f84\u662f“\/hello\/greet”<\/strong>,\u5e76\u4e14\u63a5\u53e3\u8bbf\u95ee\u6743\u9650\u662f “*”<\/strong> \u6807\u8bc6\u6240\u6709\u4eba\u90fd\u53ef\u4ee5\u8bbf\u95ee\u3002<\/p>\n
      \u901a\u8fc7\u5982\u4e0a\u4e09\u6b65\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e24\u4e2aweb\u63a5\u53e3\u7684\u6ce8\u89e3\uff0c\u4e0b\u9762\u5c31\u8ba9\u6211\u4eec\u6765\u63d0\u53d6\u548c\u5b9e\u73b0\u6ce8\u89e3\u7684\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u4e00\u3001Golang AST\u57fa\u7840 …<\/p>\n","protected":false},"author":1,"featured_media":133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-golang"],"_links":{"self":[{"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/posts\/115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/comments?post=115"}],"version-history":[{"count":26,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/posts\/115\/revisions"}],"predecessor-version":[{"id":149,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/posts\/115\/revisions\/149"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/media\/133"}],"wp:attachment":[{"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/media?parent=115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/categories?post=115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.skyvis.top\/index.php\/wp-json\/wp\/v2\/tags?post=115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}