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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<!--
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Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
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DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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This code is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License version 2 only, as
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published by the Free Software Foundation. Sun designates this
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particular file as subject to the "Classpath" exception as provided
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by Sun in the LICENSE file that accompanied this code.
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This code is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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version 2 for more details (a copy is included in the LICENSE file that
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accompanied this code).
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You should have received a copy of the GNU General Public License version
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2 along with this work; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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CA 95054 USA or visit www.sun.com if you need additional information or
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have any questions.
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-->
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
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<meta name="author" content="Jonathan Gibbons">
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<link type="text/css" rel=stylesheet href="style.css">
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<title>JavaCompiler</title>
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</head>
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<body>
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<h3>com.sun.tools.javac.main.JavaCompiler</h3>
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<p>
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<code>JavaCompiler</code> provides (and enforces) a use-once method to compile a list of source files.
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It invokes the various phases of the compiler to cause those source files to be compiled.
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</p>
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<ul>
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<li>All the files given on the command line are parsed, to build a
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list of parse trees. Lexing and parsing are done with
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<a href="../../src/share/classes/com/sun/tools/javac/parser/Scanner.java" class=code>Scanner</a> and
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<a href="../../src/share/classes/com/sun/tools/javac/parser/Parser.java" class=code>Parser</a>.
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Lexical and syntax errors will be detected here.
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<p class=note>
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Note: Additional files may be parsed later, if they are found on the class/source path, and if they are newer than their matching class file.
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</p>
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</li>
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<li>For each of the parse trees, their symbols are "entered", using
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<a href="../../src/share/classes/com/sun/tools/javac/comp/Enter.java" class=code>Enter</a>. This will also set up a "to do" list of additional work to be done to compile those parse trees.
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<i>(<a href="Enter.html">more...</a>)</i>
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</li>
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<li>If source code or stub code will be generated, a list is made
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(in rootClasses) of all the top level classes defined in the parse trees. This will be used later, to check whether a class being processed was directly provided on the command line or not.
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</li>
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<li>Then, for as long as there is work on the "to do" list,
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<code>JavaCompiler</code> processes entries from the "to do" list.
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In so doing, the compiler might find additional classes that need to be
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processed, which may result in additional entries being added to the
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"to do" list. <i>(<a href="ToDo.html">more...</a>)</i>
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</li>
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<li>Print final messages.</li>
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<li>Return a list of class symbols, perhaps just those from
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final lower (may not include top level classes)
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</li>
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</ul>
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</body>
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</html>
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