{"id":13670071,"url":"https://github.com/mmmommm/dropts","last_synced_at":"2026-01-30T11:55:19.079Z","repository":{"id":130193995,"uuid":"440058725","full_name":"mmmommm/dropts","owner":"mmmommm","description":"typescript compiler written in Go.","archived":false,"fork":false,"pushed_at":"2022-05-01T07:51:37.000Z","size":701,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2024-08-03T09:07:01.511Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/mmmommm.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null}},"created_at":"2021-12-20T05:58:48.000Z","updated_at":"2023-03-07T08:39:29.000Z","dependencies_parsed_at":"2024-01-14T16:14:33.317Z","dependency_job_id":"84eafe2b-68bb-4563-abe4-43229db2a5da","html_url":"https://github.com/mmmommm/dropts","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mmmommm%2Fdropts","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mmmommm%2Fdropts/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mmmommm%2Fdropts/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mmmommm%2Fdropts/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/mmmommm","download_url":"https://codeload.github.com/mmmommm/dropts/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":224066999,"owners_count":17250096,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-08-02T09:00:31.516Z","updated_at":"2026-01-30T11:55:19.043Z","avatar_url":"https://github.com/mmmommm.png","language":"Go","funding_links":[],"categories":["Go"],"sub_categories":[],"readme":"# dropts\n\nquote from esbuild\nonly drop type definition and transform enum jsx etc...\n\n## function dependency\ninput -\u003e lexer -\u003e parser -\u003e compiler -\u003e output\n// SourceCode ~~Scanner~~\u003e Tokens ~~Parser~~\u003e AST ~~Emitter~~\u003e JavaScript\n\n// NewLexer -\u003e newParser -\u003e Parse -\u003e parseFile -\u003e maybeParseFile -\u003e scanAllDependencies -\u003e ScanBundle -\u003e Compile -\u003e buildImpl -\u003e Build\n\n# memo\nparseの処理でtsを落としてASTに変換してそれをcompileImplに渡してASTをjsに変換する、CompileでcompileImplをラップして外部公開\n\n\u003c!-- ScanBundleの処理は必要ないと思うのでparseFileで返したParseResultをそのままcompileImplに渡す --\u003e\n\nparseFileでの結果は parseArgsの `args.results` に入る、scannerに入れられてresultの値を各種scannerに実装されているメソッドで加工している、\nscannerに渡されたparseResultは各種scanの過程を経て `ScanBundle` で呼ばれてcompileの処理に渡される\n\n# impl memo\nplaygroundで特定の文字列を受け取ってcompileした結果を返すapiとして提供するのであれば、stringで引数を取ってそれを `lexer, parser, compiler` の順に渡すようにすれば問題ない。\n\nesbuildのようにcliなどでファイル単位で渡したものを全てcompileしてファイル依存解消してminifyして返すようにするためには設計考える必要あり。\n\ninput ~~Lexer~~\u003e Tokens ~~Parser~~\u003e AST ~~Compiler~~\u003e Javascript\n\n# package\n## lexer\n渡されたTypescriptコードを型を落としたTokenに変換する\n内部で `lexer.skipTypescript` を読んで型を落とす\n\n## parser\n渡されたTokenをASTに変換する\n\n## compiler\n渡されたASTをJavascriptコードに変換する\n\nオプションはつけないあくまでAPIに文字列として渡されたTypescriptコードを変換することだけする\n\n`parser.Parse` の内部で `newLexer` を読んでいるので `parser.Parse` にstringでtypescriptコードを渡す\n\n## sample code\n\n```ts\nconst x: number = 1;\nfunction square(x: number): number {\n  return x ** 2;\n}\n```\n\n## run\n`go run main.go const x:number=1;`\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmmmommm%2Fdropts","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmmmommm%2Fdropts","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmmmommm%2Fdropts/lists"}