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Parameter</a></li></ul></li><li class="menu__list-item"><a class="menu__link menu__link--sublist menu__link--active" href="#!">API</a><ul class="menu__list"><li class="menu__list-item"><a aria-current="page" class="menu__link menu__link--active" href="/docs/api/overview">Overview</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/api/plugins">Plugins</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/api/printer">Printer</a></li></ul></li></ul></div></div></div><main class="docMainContainer_FFX1"><div class="padding-vert--lg"><div class="container"><div class="row"><div class="col docItemCol_2GOA"><div class="docItemContainer_2cwg"><article><header><h1 class="docTitle_1vWb">Overview</h1></header><div class="markdown"><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="high-level-api"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#high-level-api" title="Direct link to heading">#</a>High-level API</h2><p>The high level API allows you to simply invoke several common transpiler operations using well-known language primitives, handling usage of TypeScript API for you.</p><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="transpilestring"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#transpilestring" title="Direct link to heading">#</a>TranspileString</h3><p>Transpile a string containing TypeScript source code to Lua.</p><p><strong>Arguments:</strong></p><ul><li>Source: string - The TypeScript source code to transpile.</li><li><em>[Optional]</em> Options: tstl.CompilerOptions - CompilerOptions to use.</li></ul><p><strong>Example:</strong></p><div class="mdxCodeBlock_iHAB"><pre class="prism-code language-ts codeBlock_222H"><button type="button" aria-label="Copy code to clipboard" class="copyButton_ujp3">Copy</button><a class="playgroundButton_3DKR" aria-label="Open code on playground" target="_blank" href="/play/#code/JYWwDg9gTgLgBAKjgQwM5xqmAbOAzKCEOAIhgE8wBTVAYymDBgFoYJnsBXZEgbgCh+tCADsscKDU7Z4AXgxZsAOhhRkYsMGxUAyquAiA5gAoABsLHw8ECHHkkARsih9TAGjgBvOF2QAVZ0MqGAAuBRwlABluAKggmCjuAFYAZjgAXwBKAQtUCG0lbAgTSVRpBIATYGRDEQgsYFpUbKFRPIKikqkZJTwtKmygA">Playground</a><code class="codeBlockLines_3zpG" style="color:#393A34;background-color:#f6f8fa"><div class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">*</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">as</span><span class="token plain"> tstl </span><span class="token keyword" style="color:#00009f">from</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"typescript-to-lua"</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">transpileString</span><span class="token punctuation" style="color:#393A34">(</span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token template-string string" style="color:#e3116c">const foo = "bar";</span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"> luaTarget</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">LuaTarget</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">Lua53</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">diagnostics</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">file</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span></div></code></pre></div><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="transpilefiles"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#transpilefiles" title="Direct link to heading">#</a>TranspileFiles</h3><p>Transpile a collection of TypeScript files to Lua.</p><p><strong>Arguments:</strong></p><ul><li>FileNames: string[] - An array of file paths to the TypeScript files to be transpiled.</li><li><em>[Optional]</em> Options: tstl.CompilerOptions - CompilerOptions to use.</li></ul><p><strong>Example:</strong></p><div class="mdxCodeBlock_iHAB"><pre class="prism-code language-ts codeBlock_222H"><button type="button" aria-label="Copy code to clipboard" class="copyButton_ujp3">Copy</button><a class="playgroundButton_3DKR" aria-label="Open code on playground" target="_blank" href="/play/#code/JYWwDg9gTgLgBAKjgQwM5xqmAbOAzKCEOAIhgE8wBTVAYymDBgFoYJnsBXZEgbgCh+tCADsscKDU7Z4AXgxZsAOhhRkYsMGxUAYlpoAKANok8+gIwrUJADSkz2gExWSAXTsBvOF2QAVZFAA5lQwAFwKOEoAMtz+QSHR3ACsAMxwAL4AlALCYhDaStgQgQaSqNIwSgAmwMiBIhBYwLSo2UKiqPlUhcWlUjJKVCDAMABK-TDZQA">Playground</a><code class="codeBlockLines_3zpG" style="color:#393A34;background-color:#f6f8fa"><div class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">*</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">as</span><span class="token plain"> tstl </span><span class="token keyword" style="color:#00009f">from</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"typescript-to-lua"</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">transpileFiles</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">[</span><span class="token string" style="color:#e3116c">"file1.ts"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"file2.ts"</span><span class="token punctuation" style="color:#393A34">]</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"> luaTarget</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">LuaTarget</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">Lua53</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">diagnostics</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">emitResult</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span></div></code></pre></div><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="transpileproject"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#transpileproject" title="Direct link to heading">#</a>TranspileProject</h3><p>Transpile a TypeScript project to Lua.</p><p><strong>Arguments:</strong></p><ul><li>tsConfigPath: string - The file path to a TypeScript project's <code>tsconfig.json</code> file.</li><li><em>[Optional]</em> extendedOptions: tstl.CompilerOptions - The tsConfig already contains options, this extends those options.</li></ul><p><strong>Example:</strong></p><div class="mdxCodeBlock_iHAB"><pre class="prism-code language-ts codeBlock_222H"><button type="button" aria-label="Copy code to clipboard" class="copyButton_ujp3">Copy</button><a class="playgroundButton_3DKR" aria-label="Open code on playground" target="_blank" href="/play/#code/JYWwDg9gTgLgBAKjgQwM5xqmAbOAzKCEOAIhgE8wBTVAYymDBgFoYJnsBXZEgbgCh+tCADsscKDU7Z4AXgxZsAOhhRkYsMGxUACoQBWVWjAAUZOqLzAA5kv2pRJADRwA3nC7IAKsijWqMABcCjhKADLcPn4B4dwArADMcAC+AJQCwmIQ2krYENYmkqjSMEoAJsDI1iIQWMC0qOlCog45eQVFJUpUIMAwAEpSMulAA">Playground</a><code class="codeBlockLines_3zpG" style="color:#393A34;background-color:#f6f8fa"><div class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">*</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">as</span><span class="token plain"> tstl </span><span class="token keyword" style="color:#00009f">from</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"typescript-to-lua"</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">transpileProject</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"tsconfig.json"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"> luaTarget</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">LuaTarget</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">Lua53</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">diagnostics</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">emitResult</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span></div></code></pre></div><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="transpilevirtualproject"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#transpilevirtualproject" title="Direct link to heading">#</a>TranspileVirtualProject</h3><p>Transpile a virtual project to Lua. A virtual project is a record (like an object literal for example) where keys are file names, and values are the contents of these files. This can be used to transpile a collection of files without having these files physically on disk.</p><p><strong>Arguments:</strong></p><ul><li>Files: Record<string, string> - A record of fileName keys and fileContent values.</li><li><em>[Optional]</em> Options: tstl.CompilerOptions - CompilerOptions to use.</li></ul><p><strong>Example:</strong></p><div class="mdxCodeBlock_iHAB"><pre class="prism-code language-ts codeBlock_222H"><button type="button" aria-label="Copy code to clipboard" class="copyButton_ujp3">Copy</button><a class="playgroundButton_3DKR" aria-label="Open code on playground" target="_blank" href="/play/#code/JYWwDg9gTgLgBAKjgQwM5xqmAbOAzKCEOAIhgE8wBTVAYymDBgFoYJnsBXZEgbgCh+tCADsscKDU7Z4AXgxZsAOhhRkYsMGxUAasFjdsABUIArKrRgAKfnDgBvW3dJ4tVAIwrUJAFxwABsJi8HgQEHDyJABGyFB8-gA0TnYkrtoATF6+AUHiMVARpDEAXvFJdgC+5Q5wXMgAKrEA5lQwfpg4SgAy3I1QLTDd3ACsAMxwVfwAlAK5ENpK2BBNVpKo0oMAJsDITSIQWMC0qDNCoqjzVIvLq1IyKmoabpsAYm4nvEA">Playground</a><code class="codeBlockLines_3zpG" style="color:#393A34;background-color:#f6f8fa"><div class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">import</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">*</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">as</span><span class="token plain"> tstl </span><span class="token keyword" style="color:#00009f">from</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"typescript-to-lua"</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> result </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">transpileVirtualProject</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"file1.ts"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token template-string string" style="color:#e3116c">const foo = "bar";</span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token string" style="color:#e3116c">"file2.ts"</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> </span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token template-string string" style="color:#e3116c">const bar = "baz";</span><span class="token template-string template-punctuation string" style="color:#e3116c">`</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"> luaTarget</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">LuaTarget</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access maybe-class-name">Lua53</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">diagnostics</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token console class-name">console</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">log</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">result</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">transpiledFiles</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span></div></code></pre></div><h2><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="low-level-api"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#low-level-api" title="Direct link to heading">#</a>Low-level API</h2><p>On the contrast with high-level API, low-level API requires you to to manage TypeScript project yourself. See <a href="https://github.com/microsoft/TypeScript/wiki/Using-the-Compiler-API">Using the Compiler API</a> page for the introduction to TypeScript API.</p><h3><a aria-hidden="true" tabindex="-1" class="anchor enhancedAnchor_ZqCz" id="transpile"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#transpile" title="Direct link to heading">#</a>Transpile</h3><p><strong>Arguments:</strong></p><ul><li>program: ts.Program - The TypeScript program to transpile (note: unlike the high-level API, compilerOptions is part of the program and cannot be supplied separately).</li><li><em>[Optional]</em> sourceFiles: ts.SourceFile[] - A collection of <code>SourceFile</code>s to transpile, <code>program.getSourceFiles()</code> by default.</li><li><em>[Optional]</em> customTransformers: ts.CustomTransformers - List of extra <a href="/docs/configuration#transformers">TypeScript transformers</a>.</li><li><em>[Optional]</em> plugins: tstl.Plugin[] - List of <a href="/docs/api/plugins">TypeScriptToLua plugins</a>.</li><li><em>[Optional]</em> emitHost: tstl.EmitHost - Provides the methods for reading/writing files, useful in cases where you need something other than regular reading from disk. Defaults to <code>ts.sys</code>.</li></ul><p><strong>Example:</strong></p><div class="mdxCodeBlock_iHAB"><pre class="prism-code language-ts codeBlock_222H"><button type="button" aria-label="Copy code to clipboard" class="copyButton_ujp3">Copy</button><a class="playgroundButton_3DKR" aria-label="Open code on playground" target="_blank" href="/play/#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">Playground</a><code class="codeBlockLines_3zpG" style="color:#393A34;background-color:#f6f8fa"><div class="token-line" style="color:#393A34"><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> reportDiagnostic </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">createDiagnosticReporter</span><span class="token punctuation" style="color:#393A34">(</span><span class="token boolean" style="color:#36acaa">true</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> configFileName </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> path</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">resolve</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">__dirname</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"tsconfig.json"</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> parsedCommandLine </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">parseConfigFileWithSystem</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">configFileName</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">if</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">parsedCommandLine</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">errors</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">length</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">></span><span class="token plain"> </span><span class="token number" style="color:#36acaa">0</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> parsedCommandLine</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">errors</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">forEach</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">reportDiagnostic</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">return</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> program </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> ts</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">createProgram</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">parsedCommandLine</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">fileNames</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> parsedCommandLine</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">options</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"> transpiledFiles</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> diagnostics</span><span class="token punctuation" style="color:#393A34">:</span><span class="token plain"> transpileDiagnostics </span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">transpile</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"> program </span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> emitResult </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> tstl</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">emitTranspiledFiles</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">options</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> transpiledFiles</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain">emitResult</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">forEach</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">(</span><span class="token parameter punctuation" style="color:#393A34">{</span><span class="token parameter"> name</span><span class="token parameter punctuation" style="color:#393A34">,</span><span class="token parameter"> text </span><span class="token parameter punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token arrow operator" style="color:#393A34">=></span><span class="token plain"> ts</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">sys</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">writeFile</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">name</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> text</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block">
</span></div><div class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">const</span><span class="token plain"> diagnostics </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> ts</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">sortAndDeduplicateDiagnostics</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">[</span><span class="token spread operator" style="color:#393A34">...</span><span class="token plain">ts</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">getPreEmitDiagnostics</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">program</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token spread operator" style="color:#393A34">...</span><span class="token plain">transpileDiagnostics</span><span class="token punctuation" style="color:#393A34">]</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span></div><div class="token-line" style="color:#393A34"><span class="token plain">diagnostics</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">forEach</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">reportDiagnostic</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span></div></code></pre></div></div></article><div class="margin-vert--xl"><div class="row"><div class="col"><a href="https://github.com/TypeScriptToLua/TypeScriptToLua.github.io/edit/source/docs/api/overview.md" target="_blank" rel="noreferrer noopener"><svg fill="currentColor" height="1.2em" width="1.2em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 40 40" style="margin-right:0.3em;vertical-align:sub"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div></div></div><div class="margin-vert--lg"><nav class="pagination-nav"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/docs/advanced/functions-and-the-self-parameter"><div class="pagination-nav__link--sublabel">Previous</div><div class="pagination-nav__link--label">« Functions and the `self` Parameter</div></a></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/docs/api/plugins"><div class="pagination-nav__link--sublabel">Next</div><div class="pagination-nav__link--label">Plugins »</div></a></div></nav></div></div></div><div class="col col--3"><div class="tableOfContents_TbNY"><ul class="contents contents__left-border"><li><a href="#high-level-api" class="contents__link">High-level API</a><ul><li><a href="#transpilestring" class="contents__link">TranspileString</a></li><li><a href="#transpilefiles" class="contents__link">TranspileFiles</a></li><li><a href="#transpileproject" class="contents__link">TranspileProject</a></li><li><a href="#transpilevirtualproject" class="contents__link">TranspileVirtualProject</a></li></ul></li><li><a href="#low-level-api" class="contents__link">Low-level API</a><ul><li><a href="#transpile" class="contents__link">Transpile</a></li></ul></li></ul></div></div></div></div></div></main></div></div>
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