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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| import { parseStruct } from "./struct"; | ||
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| console.log(parseStruct({ | ||
| file:"@/types/package.rs", | ||
| structName:'Package' | ||
| }).unwrap()); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| import fs from "fs"; | ||
| import path from "path"; | ||
| import { Result, Ok, Err } from "ts-results"; | ||
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| interface FileInfo { | ||
| file: string; | ||
| structName: string; | ||
| } | ||
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|
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| interface FieldInfo { | ||
| name: string; | ||
| type: { | ||
| identifier: string; | ||
| optional: boolean; | ||
| }; | ||
| wiki: string; | ||
| } | ||
|
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| // 读取 Rust 中的某个 struct，分析出所有字段信息 | ||
| export function parseStruct({ | ||
| file, | ||
| structName, | ||
| }: FileInfo): Result<FieldInfo[], string> { | ||
| // 解析路径 | ||
| if (file.startsWith("@/")) { | ||
| file = file.replace("@/", path.join(__dirname, "../src/")); | ||
| } | ||
| // 打开文件 | ||
| if (!fs.existsSync(file)) { | ||
| return new Err(`Error:Failed to open file '${file}'`); | ||
| } | ||
| const text = fs.readFileSync(file).toString(); | ||
|
|
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| // 匹配结构体 | ||
| const m = text.match(new RegExp(`pub struct ${structName} {[^}]+}`, "gm")); | ||
| if (!m.length) { | ||
| return new Err( | ||
| `Error:Failed to find struct '${structName}' in file '${file}'` | ||
| ); | ||
| } | ||
|
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| // 清理数据并按行分割 | ||
| const clearMatches = m[0] | ||
| .split("\n") | ||
| .slice(1, -1) | ||
| .map((line) => { | ||
| let r = line.trim(); | ||
| if (r.startsWith("pub ")) { | ||
| r = r.slice(4); | ||
| } | ||
| return r; | ||
| }); | ||
|
|
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| // 解析 | ||
| const result:FieldInfo[]=[] | ||
| let stack: string[] = []; | ||
| for (const line of clearMatches) { | ||
| // 将 wiki 注释推入栈 | ||
| if (line.startsWith("/// ")) { | ||
| stack.push(line.slice(4)); | ||
| } | ||
|
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| // 忽略普通或其他特殊注释 | ||
| if (line.startsWith("//")) continue; | ||
|
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| // 解析字段名和类型 | ||
| const m = line.match(/(\w+):\s?([\w<>()]+)/); | ||
| if (m) { | ||
| const [, name, rawType] = m; | ||
| const type: FieldInfo["type"] = | ||
| rawType.startsWith("Option<") && rawType.endsWith(">") | ||
| ? { | ||
| identifier: rawType.slice(7, -1), | ||
| optional: true, | ||
| } | ||
| : { | ||
| identifier: rawType, | ||
| optional: false, | ||
| }; | ||
| result.push({ | ||
| name, | ||
| type, | ||
| wiki:stack.join('\n') | ||
| }) | ||
| stack=[] | ||
| } else { | ||
| return new Err( | ||
| `Error:Failed to parse line '${line}' as valid rust field declaration` | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| return new Ok(result); | ||
| } |
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