Package: eclipse / 3.8.1-10

ecj-gccmain-java.patch Patch series | download
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From: Niels Thykier <niels@thykier.net>
Date: Thu, 15 Mar 2012 20:03:38 +0100
Subject: ecj-gccmain-java

---
 .../jdt/internal/compiler/batch/GCCMain.java       |  502 ++++++++++++++++++++
 .../internal/compiler/batch/messages.properties    |    5 +
 2 files changed, 507 insertions(+), 0 deletions(-)
 create mode 100644 eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/GCCMain.java

diff --git a/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/GCCMain.java b/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/GCCMain.java
new file mode 100644
index 0000000..f72912d
--- /dev/null
+++ b/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/GCCMain.java
@@ -0,0 +1,502 @@
+/**
+ * 
+ */
+package org.eclipse.jdt.internal.compiler.batch;
+
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.StringTokenizer;
+import java.util.zip.CRC32;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+import org.eclipse.jdt.internal.compiler.ClassFile;
+import org.eclipse.jdt.internal.compiler.CompilationResult;
+import org.eclipse.jdt.internal.compiler.env.AccessRestriction;
+import org.eclipse.jdt.internal.compiler.env.AccessRule;
+import org.eclipse.jdt.internal.compiler.env.AccessRuleSet;
+import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
+import org.eclipse.jdt.internal.compiler.problem.ProblemSeverities;
+import org.eclipse.jdt.internal.compiler.util.Messages;
+import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
+
+/**
+ * This is an alternate entry point for the command-line compiler which
+ * is simpler to integrate into GCC.  In particular the option processing
+ * is more GNU-like and the recognized options are similar to those supported
+ * by other GCC front ends.
+ */
+public class GCCMain extends Main {
+
+	// All the compilation units specified on the command line.
+	private HashSet commandLineCompilationUnits = new HashSet();
+	// True if we are only checking syntax.
+	private boolean syntaxOnly;
+	// If not null, the name of the output zip file.
+	// If null, we are generating class files in the file system,
+	// not a zip file.
+	private String zipDestination;
+	// The zip stream to which we're writing, or null if it hasn't been opened.
+	private ZipOutputStream zipStream;
+	
+	// If not null, the name of the zip file to which dependency class files
+	// should be written.
+	private String zipDependencyDestination;
+	// The zip stream to which dependency files should be written.
+	private ZipOutputStream zipDependencyStream;
+
+	public GCCMain(PrintWriter outWriter, PrintWriter errWriter,
+			boolean systemExitWhenFinished) {
+		super(outWriter, errWriter, systemExitWhenFinished);
+		this.logger.setEmacs();
+	}
+
+	public GCCMain(PrintWriter outWriter, PrintWriter errWriter,
+			boolean systemExitWhenFinished, Map customDefaultOptions) {
+		super(outWriter, errWriter, systemExitWhenFinished,
+				customDefaultOptions);
+		this.logger.setEmacs();
+	}
+
+	private void fail(Exception t) {
+		t.printStackTrace();
+		this.logger.logException(t);
+		System.exit(1);
+	}
+
+	public CompilationUnit[] getCompilationUnits() {
+		CompilationUnit[] units = super.getCompilationUnits();
+		for (int i = 0; i < units.length; ++i)
+			this.commandLineCompilationUnits.add(units[i]);
+		return units;
+	}
+
+	private String combine(char[] one, char[] two) {
+		StringBuffer b = new StringBuffer();
+		b.append(one);
+		b.append(two);
+		return b.toString();
+	}
+
+	private ZipOutputStream getZipOutput() throws IOException {
+		if (this.zipDestination != null && this.zipStream == null) {
+			OutputStream os;
+			if ("-".equals(this.zipDestination)) { //$NON-NLS-1$
+				os = System.out;
+			} else {
+				os = new FileOutputStream(this.zipDestination);
+			}
+			zipStream = new ZipOutputStream(new BufferedOutputStream(os));
+			zipStream.setMethod(ZipOutputStream.STORED);
+			// Sun/OpenJDK require at least one entry in the zip file.
+			ZipEntry entry = new ZipEntry(".dummy");
+			byte[] contents = new byte[0];
+			CRC32 crc = new CRC32();
+			crc.update(contents);
+			entry.setSize(contents.length);
+			entry.setCrc(crc.getValue());
+			zipStream.putNextEntry(entry);
+			zipStream.write(contents);
+			zipStream.closeEntry();
+		}
+		return zipStream;
+	}
+
+	private ZipOutputStream getDependencyOutput() throws IOException {
+		if (this.zipDependencyDestination != null && this.zipDependencyStream == null) {
+			OutputStream os = new FileOutputStream(zipDependencyDestination);
+			zipDependencyStream = new ZipOutputStream(new BufferedOutputStream(os));
+			zipDependencyStream.setMethod(ZipOutputStream.STORED);
+			// Sun/OpenJDK require at least one entry in the zip file.
+			ZipEntry entry = new ZipEntry(".dummy");
+			byte[] contents = new byte[0];
+			CRC32 crc = new CRC32();
+			crc.update(contents);
+			entry.setSize(contents.length);
+			entry.setCrc(crc.getValue());
+			zipDependencyStream.putNextEntry(entry);
+			zipDependencyStream.write(contents);
+			zipDependencyStream.closeEntry();
+		}
+		return zipDependencyStream;
+	}
+
+	public void outputClassFiles(CompilationResult unitResult) {
+		if (this.syntaxOnly) {
+			return;
+		}
+		if (this.zipDestination == null) {
+			// Nothing special to do here.
+			super.outputClassFiles(unitResult);
+			return;
+		}
+		if (unitResult == null || unitResult.hasErrors()) {
+			return;
+		}
+
+		// If we are compiling with indirect dispatch, we don't need
+		// any dependent classes.  If we are using the C++ ABI, then we
+		// do need the dependencies in order to do proper layout.
+		boolean gcjCompile = this.commandLineCompilationUnits.contains(unitResult.getCompilationUnit());
+		if (this.zipDependencyDestination == null && !gcjCompile) {
+			return;
+		}
+
+		try {
+			ZipOutputStream dest = gcjCompile ? getZipOutput() : getDependencyOutput();
+			ClassFile[] classFiles = unitResult.getClassFiles();
+			for (int i = 0; i < classFiles.length; ++i) {
+				ClassFile classFile = classFiles[i];
+				String filename = combine(classFile.fileName(), SuffixConstants.SUFFIX_class);
+				if (this.verbose)
+					this.out.println(
+							Messages.bind(
+									Messages.compilation_write,
+									new String[] {
+								String.valueOf(this.exportedClassFilesCounter+1),
+								filename
+							}));
+				ZipEntry entry = new ZipEntry(filename);
+				byte[] contents = classFile.getBytes();
+				CRC32 crc = new CRC32();
+				crc.update(contents);
+				entry.setSize(contents.length);
+				entry.setCrc(crc.getValue());
+				dest.putNextEntry(entry);
+				dest.write(contents);
+				dest.closeEntry();
+			}
+		} catch (IOException err) {
+			fail(err);
+		}
+	}
+	
+	private String getArgument(String option) {
+		int index = option.indexOf('=');
+		return option.substring(index + 1);
+	}
+
+	private void addPath(ArrayList result, String currentClasspathName) {
+		String customEncoding = null;
+		AccessRule[] accessRules = new AccessRule[0];
+		AccessRuleSet accessRuleSet = new AccessRuleSet(accessRules, AccessRestriction.COMMAND_LINE, currentClasspathName);
+		FileSystem.Classpath currentClasspath = FileSystem
+				.getClasspath(currentClasspathName,
+						customEncoding, accessRuleSet);
+		if (currentClasspath != null) {
+			result.add(currentClasspath);
+		}
+	}
+	
+	private void parsePath(ArrayList result, String path) {
+		StringTokenizer iter = new StringTokenizer(path, File.pathSeparator);
+		while (iter.hasMoreTokens()) {
+			addPath(result, iter.nextToken());
+		}
+	}
+
+	protected void handleWarningToken(String token, boolean isEnabling) {
+		// Recognize this for compatibility with older versions of gcj.
+		if ("deprecated".equals(token)) //$NON-NLS-1$
+			token = "deprecation"; //$NON-NLS-1$
+		else if ("static-access".equals(token)   //$NON-NLS-1$
+				|| "dep-ann".equals(token) //$NON-NLS-1$
+				|| "over-ann".equals(token)) { //$NON-NLS-1$
+			// Some exceptions to the warning naming rule.
+		} else if ("extraneous-semicolon".equals(token)) { //$NON-NLS-1$
+			// Compatibility with earlier versions of gcj.
+			token = "semicolon"; //$NON-NLS-1$
+		} else {
+			// Turn "foo-bar-baz" into eclipse-style "fooBarBaz".
+			StringBuffer newToken = new StringBuffer(token.length());
+			StringTokenizer t = new StringTokenizer(token, "-"); //$NON-NLS-1$
+			boolean first = true;
+			while (t.hasMoreTokens()) {
+				String next = t.nextToken();
+				if (first) {
+					newToken.append(next);
+					first = false;
+				} else {
+					newToken.append(Character.toUpperCase(next.charAt(0)));
+					newToken.append(next.substring(1));
+				}
+			}
+			token = newToken.toString();
+		}
+		super.handleWarningToken(token, isEnabling);
+	}
+
+	private void turnWarningsToErrors() {
+		Object[] entries = this.options.entrySet().toArray();
+		for (int i = 0, max = entries.length; i < max; i++) {
+			Map.Entry entry = (Map.Entry) entries[i];
+			if (!(entry.getKey() instanceof String))
+				continue;
+			if (!(entry.getValue() instanceof String))
+				continue;
+			if (((String) entry.getValue()).equals(CompilerOptions.WARNING)) {
+				this.options.put(entry.getKey(), CompilerOptions.ERROR);
+			}
+		}
+	}
+
+	/**
+	 * Set the debug level to the indicated value.  The level should be
+	 * between 0 and 2, inclusive, but this is not checked.
+	 * @param level the debug level
+	 */
+	private void setDebugLevel(int level) {
+		this.options.put(
+				CompilerOptions.OPTION_LocalVariableAttribute,
+				level > 1 ? CompilerOptions.GENERATE : CompilerOptions.DO_NOT_GENERATE);
+		this.options.put(
+				CompilerOptions.OPTION_LineNumberAttribute,
+				level > 0 ? CompilerOptions.GENERATE : CompilerOptions.DO_NOT_GENERATE);
+		this.options.put(
+				CompilerOptions.OPTION_SourceFileAttribute,
+				CompilerOptions.GENERATE);
+	}
+
+	private void readFileList(String file, ArrayList result) {
+		try {
+			BufferedReader b = new BufferedReader(new FileReader(file));
+			String line;
+			while ((line = b.readLine()) != null) {
+				if (line.endsWith(SUFFIX_STRING_java))
+					result.add(line);
+			}
+			b.close();
+		} catch (IOException err) {
+			fail(err);
+		}
+	}
+	
+	private void readAllFileListFiles(ArrayList fileList, ArrayList result) {
+		Iterator it = fileList.iterator();
+		while (it.hasNext()) {
+			readFileList((String) it.next(), result);
+		}
+	}
+
+	private void handleWall(boolean enable) {
+		// A somewhat arbitrary list.  We use the GCC names
+		// here, and the local handleWarningToken translates
+		// for us.
+		handleWarningToken("constructor-name", enable);
+		handleWarningToken("pkg-default-method", enable);
+		handleWarningToken("masked-catch-block", enable);
+		handleWarningToken("all-deprecation", enable);
+		handleWarningToken("unused-local", enable);
+		handleWarningToken("unused-label", enable);
+		handleWarningToken("static-receiver", enable);
+		handleWarningToken("indirect-static", enable);
+		handleWarningToken("no-effect-assign", enable);
+		handleWarningToken("char-concat", enable);
+		handleWarningToken("useless-type-check", enable);
+		handleWarningToken("final-bound", enable);
+		handleWarningToken("assert-identifier", enable);
+		handleWarningToken("enum-identifier", enable);
+		handleWarningToken("finally", enable);
+		handleWarningToken("varargs-cast", enable);
+		handleWarningToken("unused", enable);
+		handleWarningToken("forbidden", enable);
+	}
+
+	public void configure(String[] argv) {
+		if ((argv == null) || (argv.length == 0)) {
+			// This is a "can't happen".
+			System.exit(1);
+		}
+
+		ArrayList files = new ArrayList();
+		ArrayList otherFiles = new ArrayList();
+		String classpath = null;
+		boolean haveFileList = false;
+		boolean inhibitAllWarnings = false;
+		boolean treatWarningsAsErrors = false;
+
+		for (int i = 0; i < argv.length; ++i) {
+			String currentArg = argv[i];
+			
+			if (currentArg.startsWith("-fencoding=")) { //$NON-NLS-1$
+				// Simply accept the last one.
+				String encoding = getArgument(currentArg);
+				try { // ensure encoding is supported
+					new InputStreamReader(new ByteArrayInputStream(new byte[0]), encoding);
+				} catch (UnsupportedEncodingException e) {
+					throw new IllegalArgumentException(
+						this.bind("configure.unsupportedEncoding", encoding)); //$NON-NLS-1$
+				}
+				this.options.put(CompilerOptions.OPTION_Encoding, encoding);
+			} else if (currentArg.startsWith("-foutput-class-dir=")) { //$NON-NLS-1$
+				String arg = getArgument(currentArg);
+				if (this.destinationPath != null) {
+					StringBuffer errorMessage = new StringBuffer();
+					errorMessage.append("-d"); //$NON-NLS-1$
+					errorMessage.append(' ');
+					errorMessage.append(arg);
+					throw new IllegalArgumentException(
+						this.bind("configure.duplicateOutputPath", errorMessage.toString())); //$NON-NLS-1$
+				}
+				this.setDestinationPath(arg);
+			} else if (currentArg.startsWith("-fbootclasspath=")) { //$NON-NLS-1$
+				classpath = getArgument(currentArg);
+			} else if (currentArg.equals("-fzip-target")) { //$NON-NLS-1$
+				++i;
+				if (i >= argv.length)
+					throw new IllegalArgumentException(this.bind("gcc.zipArg")); //$NON-NLS-1$
+				this.zipDestination = argv[i];
+			} else if (currentArg.equals("-fzip-dependency")) { //$NON-NLS-1$
+				++i;
+				if (i >= argv.length)
+					throw new IllegalArgumentException(this.bind("gcc.zipDepArg")); //$NON-NLS-1$
+				this.zipDependencyDestination = argv[i];
+			} else if (currentArg.startsWith("-g")) { //$NON-NLS-1$
+				if (currentArg.equals("-g0")) { //$NON-NLS-1$
+					setDebugLevel(0);
+				} else if (currentArg.equals("-g2") || currentArg.equals("-g3") //$NON-NLS-1$ //$NON-NLS-2$
+						|| currentArg.equals("-g")) { //$NON-NLS-1$
+					setDebugLevel(2);
+				} else {
+					// Handle -g1 but also things like -gstabs.
+					setDebugLevel(1);
+				}
+			} else if (currentArg.equals("-Werror")) { //$NON-NLS-1$
+				treatWarningsAsErrors = true;
+			} else if (currentArg.equals("-Wno-error")) { //$NON-NLS-1$
+				treatWarningsAsErrors = false;
+			} else if (currentArg.equals("-Wall")) { //$NON-NLS-1$
+				handleWall(true);
+			} else if (currentArg.equals("-Wno-all")) { //$NON-NLS-1$
+				handleWall(false);
+			} else if (currentArg.startsWith("-Wno-")) { //$NON-NLS-1$
+				handleWarningToken(currentArg.substring(5), false);
+			} else if (currentArg.startsWith("-W")) { //$NON-NLS-1$
+				handleWarningToken(currentArg.substring(2), true);
+			} else if (currentArg.equals("-w")) { //$NON-NLS-1$
+				inhibitAllWarnings = true;
+			} else if (currentArg.startsWith("-O")) { //$NON-NLS-1$
+				// Ignore.
+			} else if (currentArg.equals("-v")) { //$NON-NLS-1$
+				this.verbose = true;
+			} else if (currentArg.equals("-fsyntax-only")) { //$NON-NLS-1$
+				this.syntaxOnly = true;
+			} else if (currentArg.startsWith("-fsource=")) { //$NON-NLS-1$
+				currentArg = getArgument(currentArg);
+				if (currentArg.equals("1.3")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_Source, CompilerOptions.VERSION_1_3);
+				} else if (currentArg.equals("1.4")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_Source, CompilerOptions.VERSION_1_4);
+				} else if (currentArg.equals("1.5") || currentArg.equals("5") || currentArg.equals("5.0")) { //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+					this.options.put(CompilerOptions.OPTION_Source, CompilerOptions.VERSION_1_5);
+				} else if (currentArg.equals("1.6") || currentArg.equals("6") || currentArg.equals("6.0")) { //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+					this.options.put(CompilerOptions.OPTION_Source, CompilerOptions.VERSION_1_6);
+				} else {
+					throw new IllegalArgumentException(this.bind("configure.source", currentArg)); //$NON-NLS-1$
+				}
+			} else if (currentArg.startsWith("-ftarget=")) { //$NON-NLS-1$
+				currentArg = getArgument(currentArg);
+				if (currentArg.equals("1.1")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_1);
+				} else if (currentArg.equals("1.2")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_2);
+				} else if (currentArg.equals("1.3")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_3);
+				} else if (currentArg.equals("1.4")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_4);
+				} else if (currentArg.equals("1.5") || currentArg.equals("5") || currentArg.equals("5.0")) { //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_5);
+				} else if (currentArg.equals("1.6") || currentArg.equals("6") || currentArg.equals("6.0")) { //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_1_6);
+				} else if (currentArg.equals("jsr14")) { //$NON-NLS-1$
+					this.options.put(CompilerOptions.OPTION_TargetPlatform, CompilerOptions.VERSION_JSR14);
+				} else {
+					throw new IllegalArgumentException(this.bind("configure.targetJDK", currentArg)); //$NON-NLS-1$
+				}
+			} else if (currentArg.equals("-ffilelist-file")) { //$NON-NLS-1$
+				haveFileList = true;
+			} else if (currentArg.endsWith(SuffixConstants.SUFFIX_STRING_java)) {
+				files.add(currentArg);
+			} else if (currentArg.charAt(0) == '-'){
+				// FIXME: error if not a file?
+			} else {
+				otherFiles.add(currentArg);
+			}
+		}
+
+		// Read the file list file.  We read them all, but really there
+		// will only be one.
+		if (haveFileList)
+			readAllFileListFiles(otherFiles, files);
+
+		this.filenames = (String[]) files.toArray(new String[0]);
+		this.encodings = new String[this.filenames.length];
+		this.destinationPaths = new String[this.filenames.length];
+		for (int i = 0; i < this.filenames.length; ++i)
+			this.destinationPaths[i] = this.destinationPath;
+		
+		// Classpath processing.
+		ArrayList result = new ArrayList();
+		if (classpath == null)
+			throw new IllegalArgumentException(this.bind("gcc.noClasspath")); //$NON-NLS-1$
+		parsePath(result, classpath);
+
+		// We must always create both output files, even if one is not used.
+		// That way we will always pass valid zip file on to jc1.
+		try {
+			getZipOutput();
+			getDependencyOutput();
+		} catch (IOException err) {
+			fail(err);
+		}
+
+		if (inhibitAllWarnings)
+			disableAll(ProblemSeverities.Warning);
+		if (treatWarningsAsErrors)
+			turnWarningsToErrors();
+
+		this.checkedClasspaths = new FileSystem.Classpath[result.size()];
+		result.toArray(this.checkedClasspaths);
+
+		this.logger.logCommandLineArguments(argv);
+		this.logger.logOptions(this.options);
+		this.logger.logClasspath(this.checkedClasspaths);
+
+		this.maxRepetition = 1;
+	}
+
+	public boolean compile(String[] argv) {
+		boolean result = super.compile(argv);
+		try {
+			if (zipStream != null) {
+				zipStream.finish();
+				zipStream.close();
+			}
+			if (zipDependencyStream != null) {
+				zipDependencyStream.finish();
+				zipDependencyStream.close();
+			}
+		} catch (IOException err) {
+			fail(err);
+		}
+		return result;
+	}
+
+	public static void main(String[] argv) {
+		boolean result = new GCCMain(new PrintWriter(System.out), new PrintWriter(System.err), false).compile(argv);
+		System.exit(result ? 0 : 1);
+	}
+}
diff --git a/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/messages.properties b/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/messages.properties
index 3f4edfd..a697f85 100644
--- a/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/messages.properties
+++ b/eclipse/plugins/org.eclipse.jdt.core/batch/org/eclipse/jdt/internal/compiler/batch/messages.properties
@@ -360,3 +360,8 @@ misc.usage.warn = {1} {2}\n\
 \      uselessTypeCheck     unnecessary cast/instanceof operation\n\
 \      varargsCast        + varargs argument need explicit cast\n\
 \      warningToken       + unsupported or unnecessary @SuppressWarnings\n
+
+# GCCMain messages.
+gcc.zipArg=-fzip-target requires argument
+gcc.zipDepArg=-fzip-dependency requires argument
+gcc.noClasspath=no classpath specified