1 files changed, 104 insertions, 0 deletions
diff --git a/src/main/java/net/sf/antcontrib/cpptasks/compiler/PrecompilingCommandLineCompiler.java b/src/main/java/net/sf/antcontrib/cpptasks/compiler/PrecompilingCommandLineCompiler.java
new file mode 100644
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+++ b/src/main/java/net/sf/antcontrib/cpptasks/compiler/PrecompilingCommandLineCompiler.java
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+/*
+ * 
+ * Copyright 2002-2004 The Ant-Contrib project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package net.sf.antcontrib.cpptasks.compiler;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.Reader;
+
+import net.sf.antcontrib.cpptasks.parser.Parser;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.types.Environment;
+/**
+ * A command line C compiler that can utilize precompilation of header files
+ * 
+ * @author Curt Arnold
+ */
+public abstract class PrecompilingCommandLineCompiler
+        extends
+            CommandLineCompiler implements PrecompilingCompiler {
+    protected PrecompilingCommandLineCompiler(String command,
+            String identifierArg, String[] sourceExtensions,
+            String[] headerExtensions, String outputSuffix, boolean libtool,
+            PrecompilingCommandLineCompiler libtoolCompiler,
+            boolean newEnvironment, Environment env) {
+        super(command, identifierArg, sourceExtensions, headerExtensions,
+                outputSuffix, libtool, libtoolCompiler, newEnvironment, env);
+    }
+    /**
+     * 
+     * This method may be used to get two distinct compiler configurations, one
+     * for compiling the specified file and producing a precompiled header
+     * file, and a second for compiling other files using the precompiled
+     * header file.
+     * 
+     * The last (preferrably only) include directive in the prototype file will
+     * be used to mark the boundary between pre-compiled and normally compiled
+     * headers.
+     * 
+     * @param config
+     *            base configuration
+     * @param prototype
+     *            A source file (for example, stdafx.cpp) that is used to build
+     *            the precompiled header file. @returns null if precompiled
+     *            headers are not supported or a two element array containing
+     *            the precompiled header generation configuration and the
+     *            consuming configuration
+     *  
+     */
+    public CompilerConfiguration[] createPrecompileConfigurations(
+            CompilerConfiguration config, File prototype, String[] exceptFiles) {
+        //
+        //   cast should success or someone is passing us a configuration
+        //      that was prepared by another processor
+        //
+        CommandLineCompilerConfiguration cmdLineConfig = (CommandLineCompilerConfiguration) config;
+        //
+        //   parse prototype file to determine last header
+        //
+        Parser parser = createParser(prototype);
+        String[] includes;
+        try {
+            Reader reader = new BufferedReader(new FileReader(prototype));
+            parser.parse(reader);
+            includes = parser.getIncludes();
+        } catch (IOException ex) {
+            throw new BuildException(
+                    "Error parsing precompiled header protoype: "
+                            + prototype.toString() + ":" + ex.toString());
+        }
+        if (includes.length == 0) {
+            throw new BuildException("Precompiled header prototype: "
+                    + prototype.toString()
+                    + " does not contain any include directives.");
+        }
+        CompilerConfiguration[] configs = new CompilerConfiguration[2];
+        configs[0] = createPrecompileGeneratingConfig(cmdLineConfig, prototype,
+                includes[0]);
+        configs[1] = createPrecompileUsingConfig(cmdLineConfig, prototype,
+                includes[0], exceptFiles);
+        return configs;
+    }
+    abstract protected CompilerConfiguration createPrecompileGeneratingConfig(
+            CommandLineCompilerConfiguration baseConfig, File prototype,
+            String lastInclude);
+    abstract protected CompilerConfiguration createPrecompileUsingConfig(
+            CommandLineCompilerConfiguration baseConfig, File prototype,
+            String lastInclude, String[] exceptFiles);
+}