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<!DOCTYPE html>
<html>
<head>
<title>Protocol Documentation</title>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="https://fonts.googleapis.com/css?family=Ubuntu:400,700,400italic"/>
<style>
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width: 60em;
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.scalar-value-types-table tr {
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</style>
<link rel="stylesheet" type="text/css" href="stylesheet.css"/>
</head>
<body>
<h1 id="title">Protocol Documentation</h1>
<h2>Table of Contents</h2>
<div id="toc-container">
<ul id="toc">
<li>
<a href="#atom.proto">atom.proto</a>
<ul>
<li>
<a href="#atom.AdditionalEdgeProperty"><span class="badge">M</span>AdditionalEdgeProperty</a>
</li>
<li>
<a href="#atom.AdditionalNodeProperty"><span class="badge">M</span>AdditionalNodeProperty</a>
</li>
<li>
<a href="#atom.BoolList"><span class="badge">M</span>BoolList</a>
</li>
<li>
<a href="#atom.ContainedRefs"><span class="badge">M</span>ContainedRefs</a>
</li>
<li>
<a href="#atom.CpgOverlay"><span class="badge">M</span>CpgOverlay</a>
</li>
<li>
<a href="#atom.CpgStruct"><span class="badge">M</span>CpgStruct</a>
</li>
<li>
<a href="#atom.CpgStruct.Edge"><span class="badge">M</span>CpgStruct.Edge</a>
</li>
<li>
<a href="#atom.CpgStruct.Edge.Property"><span class="badge">M</span>CpgStruct.Edge.Property</a>
</li>
<li>
<a href="#atom.CpgStruct.Node"><span class="badge">M</span>CpgStruct.Node</a>
</li>
<li>
<a href="#atom.CpgStruct.Node.Property"><span class="badge">M</span>CpgStruct.Node.Property</a>
</li>
<li>
<a href="#atom.DataFlowSlice"><span class="badge">M</span>DataFlowSlice</a>
</li>
<li>
<a href="#atom.DataFlowSlice.Edges"><span class="badge">M</span>DataFlowSlice.Edges</a>
</li>
<li>
<a href="#atom.DataFlowSlice.Flows"><span class="badge">M</span>DataFlowSlice.Flows</a>
</li>
<li>
<a href="#atom.DataFlowSlice.Graph"><span class="badge">M</span>DataFlowSlice.Graph</a>
</li>
<li>
<a href="#atom.DataFlowSlice.Paths"><span class="badge">M</span>DataFlowSlice.Paths</a>
</li>
<li>
<a href="#atom.DiffGraph"><span class="badge">M</span>DiffGraph</a>
</li>
<li>
<a href="#atom.DiffGraph.Entry"><span class="badge">M</span>DiffGraph.Entry</a>
</li>
<li>
<a href="#atom.DiffGraph.RemoveEdge"><span class="badge">M</span>DiffGraph.RemoveEdge</a>
</li>
<li>
<a href="#atom.DiffGraph.RemoveEdgeProperty"><span class="badge">M</span>DiffGraph.RemoveEdgeProperty</a>
</li>
<li>
<a href="#atom.DiffGraph.RemoveNode"><span class="badge">M</span>DiffGraph.RemoveNode</a>
</li>
<li>
<a href="#atom.DiffGraph.RemoveNodeProperty"><span class="badge">M</span>DiffGraph.RemoveNodeProperty</a>
</li>
<li>
<a href="#atom.DoubleList"><span class="badge">M</span>DoubleList</a>
</li>
<li>
<a href="#atom.FloatList"><span class="badge">M</span>FloatList</a>
</li>
<li>
<a href="#atom.IntList"><span class="badge">M</span>IntList</a>
</li>
<li>
<a href="#atom.LongList"><span class="badge">M</span>LongList</a>
</li>
<li>
<a href="#atom.Nodes"><span class="badge">M</span>Nodes</a>
</li>
<li>
<a href="#atom.PropertyValue"><span class="badge">M</span>PropertyValue</a>
</li>
<li>
<a href="#atom.ReachableSlice"><span class="badge">M</span>ReachableSlice</a>
</li>
<li>
<a href="#atom.ReachableSlice.Purls"><span class="badge">M</span>ReachableSlice.Purls</a>
</li>
<li>
<a href="#atom.ReachableSlice.Reachables"><span class="badge">M</span>ReachableSlice.Reachables</a>
</li>
<li>
<a href="#atom.StringList"><span class="badge">M</span>StringList</a>
</li>
<li>
<a href="#atom.UsageSlice"><span class="badge">M</span>UsageSlice</a>
</li>
<li>
<a href="#atom.UsageSlice.ArgToCalls"><span class="badge">M</span>UsageSlice.ArgToCalls</a>
</li>
<li>
<a href="#atom.UsageSlice.DefinedBy"><span class="badge">M</span>UsageSlice.DefinedBy</a>
</li>
<li>
<a href="#atom.UsageSlice.Fields"><span class="badge">M</span>UsageSlice.Fields</a>
</li>
<li>
<a href="#atom.UsageSlice.InvokedCalls"><span class="badge">M</span>UsageSlice.InvokedCalls</a>
</li>
<li>
<a href="#atom.UsageSlice.MethodUsageSlice"><span class="badge">M</span>UsageSlice.MethodUsageSlice</a>
</li>
<li>
<a href="#atom.UsageSlice.ObjectUsageSlice"><span class="badge">M</span>UsageSlice.ObjectUsageSlice</a>
</li>
<li>
<a href="#atom.UsageSlice.Procedures"><span class="badge">M</span>UsageSlice.Procedures</a>
</li>
<li>
<a href="#atom.UsageSlice.TargetObj"><span class="badge">M</span>UsageSlice.TargetObj</a>
</li>
<li>
<a href="#atom.UsageSlice.UserDefinedTypes"><span class="badge">M</span>UsageSlice.UserDefinedTypes</a>
</li>
<li>
<a href="#atom.CONTROL_STRUCTURE_TYPES"><span class="badge">E</span>CONTROL_STRUCTURE_TYPES</a>
</li>
<li>
<a href="#atom.CpgStruct.Edge.EdgeType"><span class="badge">E</span>CpgStruct.Edge.EdgeType</a>
</li>
<li>
<a href="#atom.DispatchTypes"><span class="badge">E</span>DispatchTypes</a>
</li>
<li>
<a href="#atom.EdgePropertyName"><span class="badge">E</span>EdgePropertyName</a>
</li>
<li>
<a href="#atom.EvaluationStrategies"><span class="badge">E</span>EvaluationStrategies</a>
</li>
<li>
<a href="#atom.LANGUAGES"><span class="badge">E</span>LANGUAGES</a>
</li>
<li>
<a href="#atom.ModifierTypes"><span class="badge">E</span>ModifierTypes</a>
</li>
<li>
<a href="#atom.NodePropertyName"><span class="badge">E</span>NodePropertyName</a>
</li>
<li>
<a href="#atom.NodeType"><span class="badge">E</span>NodeType</a>
</li>
<li>
<a href="#atom.UsageSlice.LabelType"><span class="badge">E</span>UsageSlice.LabelType</a>
</li>
</ul>
</li>
<li><a href="#scalar-value-types">Scalar Value Types</a></li>
</ul>
</div>
<div class="file-heading">
<h2 id="atom.proto">atom.proto</h2><a href="#title">Top</a>
</div>
<p></p>
<h3 id="atom.AdditionalEdgeProperty">AdditionalEdgeProperty</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>edge_id</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>property</td>
<td><a href="#atom.CpgStruct.Edge.Property">CpgStruct.Edge.Property</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>out_node_key</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>in_node_key</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>edge_type</td>
<td><a href="#atom.CpgStruct.Edge.EdgeType">CpgStruct.Edge.EdgeType</a></td>
<td></td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.AdditionalNodeProperty">AdditionalNodeProperty</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>node_id</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>property</td>
<td><a href="#atom.CpgStruct.Node.Property">CpgStruct.Node.Property</a></td>
<td></td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.BoolList">BoolList</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>values</td>
<td><a href="#bool">bool</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.ContainedRefs">ContainedRefs</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>local_name</td>
<td><a href="#string">string</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>refs</td>
<td><a href="#int64">int64</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.CpgOverlay">CpgOverlay</h3>
<p>Overlays can be stacked onto each other, therefor their node ids must be globally unique.</p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>node</td>
<td><a href="#atom.CpgStruct.Node">CpgStruct.Node</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
<tr>
<td>edge</td>
<td><a href="#atom.CpgStruct.Edge">CpgStruct.Edge</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
<tr>
<td>node_property</td>
<td><a href="#atom.AdditionalNodeProperty">AdditionalNodeProperty</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
<tr>
<td>edge_property</td>
<td><a href="#atom.AdditionalEdgeProperty">AdditionalEdgeProperty</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.CpgStruct">CpgStruct</h3>
<p>This is the CORE structure that represents a Code Property Graph for the given language</p><p>This structure must be serialized as bytes and stored in a zip file (such as app.atom) with the name "cpg.proto"</p><p>Example code snippet in Python</p><p>```python</p><p>atom_struct = atom.CpgStruct(node=[method])</p><p>with ZipFile(file_name, "w") as zip_file:</p><p>zip_file.writestr("cpg.proto", bytes(atom_struct))</p><p>```</p><p>Example code snippet in TypeScript</p><p>```typescript</p><p>const methodFullName = new atom.CpgStruct.Node.Property({</p><p>name: atom.NodePropertyName.FULL_NAME,</p><p>value: new atom.PropertyValue({ string_value: "main" }),</p><p>});</p><p>const method = new atom.CpgStruct.Node({</p><p>key: 1,</p><p>type: atom.NodeType.METHOD,</p><p>property: [methodFullName],</p><p>});</p><p>const atomStruct = new atom.CpgStruct({ node: [method] });</p><p>const serializedBytes = atomStruct.serialize();</p><p>```</p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>node</td>
<td><a href="#atom.CpgStruct.Node">CpgStruct.Node</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
<tr>
<td>edge</td>
<td><a href="#atom.CpgStruct.Edge">CpgStruct.Edge</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.CpgStruct.Edge">CpgStruct.Edge</h3>
<p>Represents a directed edge of a graph</p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>src</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p>Source node. </p></td>
</tr>
<tr>
<td>dst</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p>Destination node. </p></td>
</tr>
<tr>
<td>type</td>
<td><a href="#atom.CpgStruct.Edge.EdgeType">CpgStruct.Edge.EdgeType</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>property</td>
<td><a href="#atom.CpgStruct.Edge.Property">CpgStruct.Edge.Property</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.CpgStruct.Edge.Property">CpgStruct.Edge.Property</h3>
<p>Edge properties.</p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>name</td>
<td><a href="#atom.EdgePropertyName">EdgePropertyName</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>value</td>
<td><a href="#atom.PropertyValue">PropertyValue</a></td>
<td></td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.CpgStruct.Node">CpgStruct.Node</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>key</td>
<td><a href="#int64">int64</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>type</td>
<td><a href="#atom.NodeType">NodeType</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>property</td>
<td><a href="#atom.CpgStruct.Node.Property">CpgStruct.Node.Property</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.CpgStruct.Node.Property">CpgStruct.Node.Property</h3>
<p>Node properties.</p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>name</td>
<td><a href="#atom.NodePropertyName">NodePropertyName</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>value</td>
<td><a href="#atom.PropertyValue">PropertyValue</a></td>
<td></td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DataFlowSlice">DataFlowSlice</h3>
<p>DataFlow slices offers a list of nodes and edges exported from data dependency graph</p><p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>graph</td>
<td><a href="#atom.DataFlowSlice.Graph">DataFlowSlice.Graph</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>path</td>
<td><a href="#atom.DataFlowSlice.Paths">DataFlowSlice.Paths</a></td>
<td></td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DataFlowSlice.Edges">DataFlowSlice.Edges</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>src</td>
<td><a href="#uint32">uint32</a></td>
<td></td>
<td><p>Source node id </p></td>
</tr>
<tr>
<td>dst</td>
<td><a href="#uint32">uint32</a></td>
<td></td>
<td><p>Destination node id </p></td>
</tr>
<tr>
<td>label</td>
<td><a href="#atom.CpgStruct.Edge.EdgeType">CpgStruct.Edge.EdgeType</a></td>
<td></td>
<td><p>Edge type </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DataFlowSlice.Flows">DataFlowSlice.Flows</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>id</td>
<td><a href="#uint32">uint32</a></td>
<td>repeated</td>
<td><p>Node id </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DataFlowSlice.Graph">DataFlowSlice.Graph</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>nodes</td>
<td><a href="#atom.Nodes">Nodes</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
<tr>
<td>edges</td>
<td><a href="#atom.DataFlowSlice.Edges">DataFlowSlice.Edges</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DataFlowSlice.Paths">DataFlowSlice.Paths</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>flows</td>
<td><a href="#atom.DataFlowSlice.Flows">DataFlowSlice.Flows</a></td>
<td>repeated</td>
<td><p>Flows from source to sink </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DiffGraph">DiffGraph</h3>
<p>DiffGraphs can be created independently of each other and therefor when _adding_ nodes|edges,</p><p>each DiffGraph has its own ID space. However, when removing nodes|edges, the nodeIds refer to the</p><p>globally unique graph id space.</p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>entries</td>
<td><a href="#atom.DiffGraph.Entry">DiffGraph.Entry</a></td>
<td>repeated</td>
<td><p> </p></td>
</tr>
</tbody>
</table>
<h3 id="atom.DiffGraph.Entry">DiffGraph.Entry</h3>
<p></p>
<table class="field-table">
<thead>
<tr><td>Field</td><td>Type</td><td>Label</td><td>Description</td></tr>
</thead>
<tbody>
<tr>
<td>node</td>
<td><a href="#atom.CpgStruct.Node">CpgStruct.Node</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>edge</td>
<td><a href="#atom.CpgStruct.Edge">CpgStruct.Edge</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>node_property</td>
<td><a href="#atom.AdditionalNodeProperty">AdditionalNodeProperty</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>edge_property</td>
<td><a href="#atom.AdditionalEdgeProperty">AdditionalEdgeProperty</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>remove_node</td>
<td><a href="#atom.DiffGraph.RemoveNode">DiffGraph.RemoveNode</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>remove_node_property</td>
<td><a href="#atom.DiffGraph.RemoveNodeProperty">DiffGraph.RemoveNodeProperty</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>remove_edge</td>
<td><a href="#atom.DiffGraph.RemoveEdge">DiffGraph.RemoveEdge</a></td>
<td></td>
<td><p> </p></td>
</tr>
<tr>
<td>remove_edge_property</td>
<td><a href="#atom.DiffGraph.RemoveEdgeProperty">DiffGraph.RemoveEdgeProperty</a></td>
<td></td>
<td><p> </p></td>
</tr>
</tbody>