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<h1 class="post-title-main">FAQ</h1>
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<div class="post-content">
<h4 id="where-is-the-javadoc">Where is the Javadoc?</h4>
<p>The javadoc is at <a href="http://spoon.gforge.inria.fr/mvnsites/spoon-core/apidocs">http://spoon.gforge.inria.fr/mvnsites/spoon-core/apidocs</a></p>
<h4 id="are-there-snapshots-versions-deployed-somewhere">Are there snapshots versions deployed somewhere?</h4>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><dependencies></span>
<span class="nt"><dependency></span>
<span class="nt"><groupId></span>fr.inria.gforge.spoon<span class="nt"></groupId></span>
<span class="nt"><artifactId></span>spoon-core<span class="nt"></artifactId></span>
<span class="nt"><version></span>10.4.3-SNAPSHOT<span class="nt"></version></span>
<span class="nt"></dependency></span>
<span class="nt"></dependencies></span>
<span class="nt"><repositories></span>
<span class="nt"><repository></span>
<span class="nt"><id></span>spoon-snapshot<span class="nt"></id></span>
<span class="nt"><name></span>Maven Repository for Spoon Snapshots<span class="nt"></name></span>
<span class="nt"><url></span>https://repository.ow2.org/nexus/content/repositories/snapshots/<span class="nt"></url></span>
<span class="nt"></repository></span>
<span class="nt"></repositories></span>
</code></pre></div></div>
<h4 id="how-to-access-spoons-source-code-repository">How to access Spoon’s source code repository?</h4>
<p>Spoon is developed on GitHub at <a href="https://github.com/INRIA/spoon/">https://github.com/INRIA/spoon/</a>. You can browse the Spoon source using code intelligence (Go-to-definition, Find References, and Hover tooltips) at <a href="https://sourcegraph.com/github.com/INRIA/spoon">https://sourcegraph.com/github.com/INRIA/spoon</a>.</p>
<h4 id="what-is-the-meaning-of-each-digit-in-the-version-xyz-of-spoon">What is the meaning of each digit in the version X.Y.Z of spoon?</h4>
<ul>
<li>X is the digit for the major version (major new features or major incompatible API changes).</li>
<li>Y is the digit for the minor version (bug fixes or minor API changes).</li>
<li>Z is the digit for the critical bug fixes of the current major or minor version.</li>
</ul>
<h4 id="where-is-the-spoon-metamodel">Where is the Spoon metamodel?</h4>
<p>The Spoon metamodel consists of all interfaces that are in packages <code class="language-plaintext highlighter-rouge">spoon.reflect.declaration</code> (structural part: classes, methods, etc.) and <code class="language-plaintext highlighter-rouge">spoon.reflect.code</code> (behavioral part: if, loops, etc.).</p>
<h4 id="how-to-prevent-annotation-processors-from-consuming-the-annotations-that-they-process">How to prevent Annotation processors from consuming the annotations that they process?</h4>
<p>By default, whenever an Annotation Processor processes a CtElement it will consume (delete) the processed annotation from it. If you want the annotation to be kept, override the init() method from the <code class="language-plaintext highlighter-rouge">AbstractAnnotationProcessor</code> class, and call the protected method <code class="language-plaintext highlighter-rouge">clearConsumedAnnotationTypes</code> like so:</p>
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code>@Override
public void init() {
super.init();
clearConsumedAnnotationTypes();
}
</code></pre></div></div>
<h4 id="how-to-compare-and-create-type-references-in-a-type-safe-way">How to compare and create type references in a type-safe way?</h4>
<p>Use actual classes instead of strings.</p>
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nc">CtTypeReference</span> <span class="n">t</span><span class="o">=...</span>
<span class="k">if</span><span class="o">(</span><span class="n">t</span><span class="o">.</span><span class="na">getActualClass</span><span class="o">()==</span><span class="kt">int</span><span class="o">.</span><span class="na">class</span><span class="o">)</span> <span class="o">{</span> <span class="o">...</span> <span class="o">}</span>
<span class="nc">Factory</span> <span class="n">f</span><span class="o">=...</span>
<span class="n">t</span><span class="o">=</span><span class="n">f</span><span class="o">.</span><span class="na">Type</span><span class="o">().</span><span class="na">createReference</span><span class="o">(</span><span class="kt">int</span><span class="o">.</span><span class="na">class</span><span class="o">);</span>
</code></pre></div></div>
<h4 id="how-to-set-the-jdt-compiler-arguments">How to set the JDT compiler arguments?</h4>
<p><code class="language-plaintext highlighter-rouge">SpoonModelBuilder</code> exposes a method named <code class="language-plaintext highlighter-rouge">build(JDTBuilder)</code>. This method compiles the target source code with data specified in the JDTBuilder parameter.</p>
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">final</span> <span class="nc">String</span><span class="o">[]</span> <span class="n">builder</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">JDTBuilderImpl</span><span class="o">()</span> <span class="c1">//</span>
<span class="o">.</span><span class="na">classpathOptions</span><span class="o">(</span><span class="k">new</span> <span class="nc">ClasspathOptions</span><span class="o">().</span><span class="na">classpath</span><span class="o">(</span><span class="no">TEST_CLASSPATH</span><span class="o">).</span><span class="na">bootclasspath</span><span class="o">(</span><span class="no">TEST_CLASSPATH</span><span class="o">).</span><span class="na">binaries</span><span class="o">(</span><span class="s">"."</span><span class="o">).</span><span class="na">encoding</span><span class="o">(</span><span class="s">"UTF-8"</span><span class="o">))</span> <span class="c1">//</span>
<span class="o">.</span><span class="na">complianceOptions</span><span class="o">(</span><span class="k">new</span> <span class="nc">ComplianceOptions</span><span class="o">().</span><span class="na">compliance</span><span class="o">(</span><span class="mi">8</span><span class="o">))</span> <span class="c1">//</span>
<span class="o">.</span><span class="na">annotationProcessingOptions</span><span class="o">(</span><span class="k">new</span> <span class="nc">AnnotationProcessingOptions</span><span class="o">().</span><span class="na">compileProcessors</span><span class="o">())</span> <span class="c1">//</span>
<span class="o">.</span><span class="na">advancedOptions</span><span class="o">(</span><span class="k">new</span> <span class="nc">AdvancedOptions</span><span class="o">().</span><span class="na">continueExecution</span><span class="o">().</span><span class="na">enableJavadoc</span><span class="o">().</span><span class="na">preserveUnusedVars</span><span class="o">())</span> <span class="c1">//</span>
<span class="o">.</span><span class="na">sources</span><span class="o">(</span><span class="k">new</span> <span class="nc">SourceOptions</span><span class="o">().</span><span class="na">sources</span><span class="o">(</span><span class="s">"."</span><span class="o">))</span> <span class="c1">//</span>
<span class="o">.</span><span class="na">build</span><span class="o">();</span>
</code></pre></div></div>
<h4 id="what-does-launcherprettyprint-do">What does <code class="language-plaintext highlighter-rouge">Launcher#prettyprint()</code> do?</h4>
<p><code class="language-plaintext highlighter-rouge">launcher.prettyprint</code> prints the model on disk. The model could have been transformed or not, and is saved in an output directory which one can set up with <code class="language-plaintext highlighter-rouge">launcher.setSourceOutputDirectory()</code>. The default output directory is called <code class="language-plaintext highlighter-rouge">spooned</code>. If you want the pretty-print to the standard output (console STDOUT), use method <code class="language-plaintext highlighter-rouge">toString</code> instead, defined for every CtElement. Reference: https://github.com/INRIA/spoon/issues/4274</p>
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