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<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="phoenix.organization"></a><a class="link" href="organization.html" title="Organization">Organization</a>
</h2></div></div></div>
<p>
Care and attention to detail was given, painstakingly, to the design and implementation
of Phoenix.
</p>
<p>
The library is organized in four layers:
</p>
<p>
<span class="inlinemediaobject"><img src="../images/organization.png" alt="organization"></span>
</p>
<p>
The modules are orthogonal, with no cyclic dependencies. Lower layers do not
depend on higher layers. Modules in a layer do not depend on other modules
in the same layer. This means, for example, that Bind can be completely discarded
if it is not required; or one could perhaps take out Operator and Statement
and just use Function, which may be desireable in a pure FP application.
</p>
<p>
The library has grown from the original Phoenix but still comprises only header
files. There are no object files to link against.
</p>
<a name="phoenix.organization.core"></a><h3>
<a name="id765034"></a>
<a class="link" href="organization.html#phoenix.organization.core">Core</a>
</h3>
<p>
The lowest two layers comprise the core.
</p>
<p>
The <code class="computeroutput"><span class="identifier">Actor</span></code> is the main concept
behind the library. Lazy functions are abstracted as actors. There are only
2 kinds of actors:
</p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
Primitives
</li>
<li class="listitem">
Composites
</li>
</ol></div>
<p>
Primitives provide the basic building blocks of functionality within Phoenix.
Composites are used to combine these primitives together to provide more powerful
functionality.
</p>
<p>
Composites are composed of zero or more actors. Each actor in a composite can
again be another composite.
</p>
<div class="table">
<a name="id765093"></a><p class="title"><b>Table 1.2. Modules</b></p>
<div class="table-contents"><table class="table" summary="Modules">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Module
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
Function
</p>
</td>
<td>
<p>
Lazy functions support (e.g. <code class="computeroutput"><span class="identifier">add</span></code>)
</p>
</td>
</tr>
<tr>
<td>
<p>
Operator
</p>
</td>
<td>
<p>
Lazy operators support (e.g. <code class="computeroutput"><span class="special">+</span></code>)
</p>
</td>
</tr>
<tr>
<td>
<p>
Statement
</p>
</td>
<td>
<p>
Lazy statments (e.g. <code class="computeroutput"><span class="identifier">if_</span></code>,
<code class="computeroutput"><span class="identifier">while_</span></code>)
</p>
</td>
</tr>
<tr>
<td>
<p>
Object
</p>
</td>
<td>
<p>
Lazy casts (e.g. <code class="computeroutput"><span class="identifier">static_cast_</span></code>),
object creation destruction (e.g. <code class="computeroutput"><span class="identifier">new_</span></code>,
<code class="computeroutput"><span class="identifier">delete_</span></code>)
</p>
</td>
</tr>
<tr>
<td>
<p>
Scope
</p>
</td>
<td>
<p>
Support for scopes, local variables and lambda-lambda
</p>
</td>
</tr>
<tr>
<td>
<p>
Bind
</p>
</td>
<td>
<p>
Lazy functions from free functions, member functions or member variables.
</p>
</td>
</tr>
<tr>
<td>
<p>
Container
</p>
</td>
<td>
<p>
Set of predefined "lazy" functions that work on STL containers
and sequences (e.g. <code class="computeroutput"><span class="identifier">push_back</span></code>).
</p>
</td>
</tr>
<tr>
<td>
<p>
Algorithm
</p>
</td>
<td>
<p>
Set of predefined "lazy" versions of the STL algorithms
(e.g. <code class="computeroutput"><span class="identifier">find_if</span></code>).
</p>
</td>
</tr>
</tbody>
</table></div>
</div>
<br class="table-break"><p>
Each module is defined in a header file with the same name. For example, the
core module is defined in <code class="computeroutput"><span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">core</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>.
</p>
<div class="table">
<a name="id765410"></a><p class="title"><b>Table 1.3. Includes</b></p>
<div class="table-contents"><table class="table" summary="Includes">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Module
</p>
</th>
<th>
<p>
File
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
Core
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">core</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Function
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">function</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Operator
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="keyword">operator</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Statement
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">statement</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Object
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">object</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Scope
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">scope</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Bind
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">bind</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Container
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">container</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Algorithm
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
</p>
</td>
</tr>
</tbody>
</table></div>
</div>
<br class="table-break"><div class="sidebar">
<p class="title"><b></b></p>
<p>
<span class="inlinemediaobject"><img src="../images/tip.png" alt="tip"></span> Finer grained include files are available per feature;
see the succeeding sections.
</p>
</div>
</div>
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<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2002-2005 Joel
de Guzman, Dan Marsden<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
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