eric7/Documentation/Source/eric7.Plugins.CheckerPlugins.CodeStyleChecker.Annotations.AnnotationsFutureVisitor.html

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<h1>eric7.Plugins.CheckerPlugins.CodeStyleChecker.Annotations.AnnotationsFutureVisitor</h1>

<p>
Module implementing a node visitor for function type annotations.
</p>
<h3>Global Attributes</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>

<table>

<tr>
<td><a href="#AnnotationsFutureVisitor">AnnotationsFutureVisitor</a></td>
<td>Class implementing a node visitor to check __future__ imports.</td>
</tr>
</table>
<h3>Functions</h3>

<table>
<tr><td>None</td></tr>
</table>
<hr />
<hr />
<a NAME="AnnotationsFutureVisitor" ID="AnnotationsFutureVisitor"></a>
<h2>AnnotationsFutureVisitor</h2>

<p>
    Class implementing a node visitor to check __future__ imports.
</p>
<h3>Derived from</h3>
ast.NodeVisitor
<h3>Class Attributes</h3>

<table>
<tr><td>SimplifyableTypes</td></tr>
</table>
<h3>Class Methods</h3>

<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>

<table>

<tr>
<td><a href="#AnnotationsFutureVisitor.__init__">AnnotationsFutureVisitor</a></td>
<td>Constructor</td>
</tr>
<tr>
<td><a href="#AnnotationsFutureVisitor.getTypingImports">getTypingImports</a></td>
<td>Public method to get the list of typing imports.</td>
</tr>
<tr>
<td><a href="#AnnotationsFutureVisitor.hasTypingImports">hasTypingImports</a></td>
<td>Public method to check, if the analyzed code includes typing imports.</td>
</tr>
<tr>
<td><a href="#AnnotationsFutureVisitor.importsFutureAnnotations">importsFutureAnnotations</a></td>
<td>Public method to check, if the analyzed code uses future annotation.</td>
</tr>
<tr>
<td><a href="#AnnotationsFutureVisitor.visit_Attribute">visit_Attribute</a></td>
<td>Public method to record simplifiable names.</td>
</tr>
<tr>
<td><a href="#AnnotationsFutureVisitor.visit_Import">visit_Import</a></td>
<td>Public method to check imports for typing related stuff.</td>
</tr>
<tr>
<td><a href="#AnnotationsFutureVisitor.visit_ImportFrom">visit_ImportFrom</a></td>
<td>Public method to detect the 'from __future__ import annotations' import if present.</td>
</tr>
</table>
<h3>Static Methods</h3>

<table>
<tr><td>None</td></tr>
</table>

<a NAME="AnnotationsFutureVisitor.__init__" ID="AnnotationsFutureVisitor.__init__"></a>
<h4>AnnotationsFutureVisitor (Constructor)</h4>
<b>AnnotationsFutureVisitor</b>(<i></i>)

<p>
        Constructor
</p>
<a NAME="AnnotationsFutureVisitor.getTypingImports" ID="AnnotationsFutureVisitor.getTypingImports"></a>
<h4>AnnotationsFutureVisitor.getTypingImports</h4>
<b>getTypingImports</b>(<i></i>)

<p>
        Public method to get the list of typing imports.
</p>
<dl>
<dt>Return:</dt>
<dd>
list of typing imports
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
list of str
</dd>
</dl>
<a NAME="AnnotationsFutureVisitor.hasTypingImports" ID="AnnotationsFutureVisitor.hasTypingImports"></a>
<h4>AnnotationsFutureVisitor.hasTypingImports</h4>
<b>hasTypingImports</b>(<i></i>)

<p>
        Public method to check, if the analyzed code includes typing imports.
</p>
<dl>
<dt>Return:</dt>
<dd>
flag indicating the use of typing imports
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
<a NAME="AnnotationsFutureVisitor.importsFutureAnnotations" ID="AnnotationsFutureVisitor.importsFutureAnnotations"></a>
<h4>AnnotationsFutureVisitor.importsFutureAnnotations</h4>
<b>importsFutureAnnotations</b>(<i></i>)

<p>
        Public method to check, if the analyzed code uses future annotation.
</p>
<dl>
<dt>Return:</dt>
<dd>
flag indicatung the use of future annotation
</dd>
</dl>
<dl>
<dt>Return Type:</dt>
<dd>
bool
</dd>
</dl>
<a NAME="AnnotationsFutureVisitor.visit_Attribute" ID="AnnotationsFutureVisitor.visit_Attribute"></a>
<h4>AnnotationsFutureVisitor.visit_Attribute</h4>
<b>visit_Attribute</b>(<i>node</i>)

<p>
        Public method to record simplifiable names.
</p>
<p>
        If 'import typing' or 'import typing as t' is used, add simplifiable
        names that were used later on in the code.
</p>
<dl>

<dt><i>node</i> (ast.Attribute)</dt>
<dd>
reference to the AST Attribute node
</dd>
</dl>
<a NAME="AnnotationsFutureVisitor.visit_Import" ID="AnnotationsFutureVisitor.visit_Import"></a>
<h4>AnnotationsFutureVisitor.visit_Import</h4>
<b>visit_Import</b>(<i>node</i>)

<p>
        Public method to check imports for typing related stuff.
</p>
<p>
        This looks like:
        import typing
        or
        import typing as t
</p>
<p>
        typing or t will be added to the list of typing aliases.
</p>
<dl>

<dt><i>node</i> (ast.Import)</dt>
<dd>
reference to the AST Import node
</dd>
</dl>
<a NAME="AnnotationsFutureVisitor.visit_ImportFrom" ID="AnnotationsFutureVisitor.visit_ImportFrom"></a>
<h4>AnnotationsFutureVisitor.visit_ImportFrom</h4>
<b>visit_ImportFrom</b>(<i>node</i>)

<p>
        Public method to detect the 'from __future__ import annotations'
        import if present.
</p>
<p>
        If 'from typing import ...' is used, add simplifiable names that were
        imported.
</p>
<dl>

<dt><i>node</i> (ast.ImportFrom)</dt>
<dd>
reference to the AST ImportFrom node
</dd>
</dl>
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