ts-simple-ast
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TypeScript compiler wrapper for AST navigation and code generation.
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<!--<p class="subText">Simple way to navigate and manipulate the TypeScript AST.</p>-->
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<h2 id="manipulation-settings">Manipulation Settings</h2>
<p>The manipulation settings can be set when creating the main AST object:</p>
<div class="language-typescript highlighter-rouge"><pre class="highlight"><code><span class="k">import</span> <span class="o">*</span> <span class="k">as</span> <span class="nx">ts</span> <span class="k">from</span> <span class="s2">"typescript"</span><span class="p">;</span>
<span class="k">import</span> <span class="nx">TsSimpleAst</span><span class="p">,</span> <span class="p">{</span><span class="nx">QuoteType</span><span class="p">,</span> <span class="nx">NewLineKind</span><span class="p">,</span> <span class="nx">IndentationText</span><span class="p">}</span> <span class="k">from</span> <span class="s2">"ts-simple-ast"</span><span class="p">;</span>
<span class="kd">const</span> <span class="nx">ast</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">TsSimpleAst</span><span class="p">({</span>
<span class="c1">// these are the defaults</span>
<span class="na">manipulationSettings</span><span class="p">:</span> <span class="p">{</span>
<span class="c1">// TwoSpaces, FourSpaces, EightSpaces, or Tab</span>
<span class="na">indentationText</span><span class="p">:</span> <span class="nx">IndentationText</span><span class="p">.</span><span class="nx">FourSpaces</span><span class="p">,</span>
<span class="c1">// LineFeed or CarriageReturnLineFeed</span>
<span class="na">newLineKind</span><span class="p">:</span> <span class="nx">NewLineKind</span><span class="p">.</span><span class="nx">LineFeed</span><span class="p">,</span>
<span class="c1">// defines what ts.ScriptTarget source files are created with</span>
<span class="na">scriptTarget</span><span class="p">:</span> <span class="nx">ts</span><span class="p">.</span><span class="nx">ScriptTarget</span><span class="p">.</span><span class="nx">Latest</span><span class="p">,</span>
<span class="c1">// Single or Double</span>
<span class="na">quoteType</span><span class="p">:</span> <span class="nx">QuoteType</span><span class="p">.</span><span class="nx">Double</span>
<span class="p">}</span>
<span class="p">});</span>
</code></pre>
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<p>You can only provide a partial of these settings if you wish:</p>
<div class="language-typescript highlighter-rouge"><pre class="highlight"><code><span class="kd">const</span> <span class="nx">ast</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">TsSimpleAst</span><span class="p">({</span>
<span class="na">manipulationSettings</span><span class="p">:</span> <span class="p">{</span> <span class="na">indentationText</span><span class="p">:</span> <span class="nx">IndentationText</span><span class="p">.</span><span class="nx">TwoSpaces</span> <span class="p">}</span>
<span class="p">});</span>
</code></pre>
</div>
<h3 id="details">Details</h3>
<p>Get more details about the settings by looking at the <code class="highlighter-rouge">manipulationSettings</code> property on the main AST object:</p>
<div class="language-typescript highlighter-rouge"><pre class="highlight"><code><span class="nx">ast</span><span class="p">.</span><span class="nx">manipulationSettings</span><span class="p">.</span><span class="nx">getIndentationText</span><span class="p">();</span>
<span class="nx">ast</span><span class="p">.</span><span class="nx">manipulationSettings</span><span class="p">.</span><span class="nx">getNewLineKind</span><span class="p">();</span>
<span class="nx">ast</span><span class="p">.</span><span class="nx">manipulationSettings</span><span class="p">.</span><span class="nx">getQuoteType</span><span class="p">();</span>
<span class="nx">ast</span><span class="p">.</span><span class="nx">manipulationSettings</span><span class="p">.</span><span class="nx">getScriptTarget</span><span class="p">();</span>
</code></pre>
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<h3 id="updating">Updating</h3>
<p>You can update these settings later if you wish by using the <code class="highlighter-rouge">set</code> method:</p>
<div class="language-typescript highlighter-rouge"><pre class="highlight"><code><span class="c1">// set only one</span>
<span class="nx">ast</span><span class="p">.</span><span class="nx">manipulationSettings</span><span class="p">.</span><span class="nx">set</span><span class="p">({</span> <span class="na">quoteType</span><span class="p">:</span> <span class="nx">QuoteType</span><span class="p">.</span><span class="nx">Single</span> <span class="p">});</span>
<span class="c1">// or multiple</span>
<span class="nx">ast</span><span class="p">.</span><span class="nx">manipulationSettings</span><span class="p">.</span><span class="nx">set</span><span class="p">({</span>
<span class="na">quoteType</span><span class="p">:</span> <span class="nx">QuoteType</span><span class="p">.</span><span class="nx">Single</span><span class="p">,</span>
<span class="na">indentationText</span><span class="p">:</span> <span class="nx">IndentationText</span><span class="p">.</span><span class="nx">TwoSpaces</span>
<span class="p">});</span>
</code></pre>
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