Adds support of incremental build into tools

teavm-cli/src/main/java/org/teavm/cli/TeaVMRunner.java

@@ -65,6 +65,19 @@ public final class TeaVMRunner {
                 .withDescription("Generate debug information")
                 .withLongOpt("debug")
                 .create('D'));
+        options.addOption(OptionBuilder
+                .withDescription("Generate source maps")
+                .withLongOpt("sourcemaps")
+                .create('S'));
+        options.addOption(OptionBuilder
+                .withDescription("Incremental build")
+                .withLongOpt("incremental")
+                .create('i'));
+        options.addOption(OptionBuilder
+                .withArgName("directory")
+                .withDescription("Incremental build cache directory")
+                .withLongOpt("cachedir")
+                .create('c'));
         options.addOption(OptionBuilder
                 .withDescription("Generate source maps")
                 .withLongOpt("sourcemaps")
@@ -117,10 +130,16 @@ public final class TeaVMRunner {
             tool.setMainPageIncluded(true);
         }
         if (commandLine.hasOption('D')) {
-            tool.setDebugInformation(new File(tool.getTargetDirectory(), tool.getTargetFileName() + ".teavmdbg"));
+            tool.setDebugInformationGenerated(true);
-            if (commandLine.hasOption("sourcemaps")) {
+        }
+        if (commandLine.hasOption('S')) {
             tool.setSourceMapsFileGenerated(true);
         }
+        if (commandLine.hasOption('i')) {
+            tool.setIncremental(true);
+        }
+        if (commandLine.hasOption('c')) {
+            tool.setCacheDirectory(new File(commandLine.getOptionValue('c')));
         }
         args = commandLine.getArgs();
         if (args.length > 1) {

teavm-core/src/main/java/org/teavm/cache/FileProgramCache.java

@@ -1,36 +0,0 @@
-/*
- *  Copyright 2014 Alexey Andreev.
- *
- *  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 org.teavm.cache;
-
-import org.teavm.model.MethodReference;
-import org.teavm.model.Program;
-import org.teavm.model.ProgramCache;
-
-/**
- *
- * @author Alexey Andreev
- */
-public class FileProgramCache implements ProgramCache {
-
-    @Override
-    public Program get(MethodReference method) {
-        return null;
-    }
-
-    @Override
-    public void store(MethodReference method, Program program) {
-    }
-}

teavm-core/src/main/java/org/teavm/tooling/TeaVMTool.java

@@ -20,13 +20,14 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;
 import org.apache.commons.io.IOUtils;
+import org.teavm.cache.DiskCachedClassHolderSource;
+import org.teavm.cache.DiskProgramCache;
+import org.teavm.cache.DiskRegularMethodNodeCache;
+import org.teavm.cache.FileSymbolTable;
 import org.teavm.debugging.information.DebugInformation;
 import org.teavm.debugging.information.DebugInformationBuilder;
 import org.teavm.javascript.RenderingContext;
-import org.teavm.model.ClassHolderTransformer;
+import org.teavm.model.*;
-import org.teavm.model.MethodDescriptor;
-import org.teavm.model.MethodReference;
-import org.teavm.model.ValueType;
 import org.teavm.parsing.ClasspathClassHolderSource;
 import org.teavm.vm.*;
 import org.teavm.vm.spi.AbstractRendererListener;
@@ -44,14 +45,20 @@ public class TeaVMTool {
     private Properties properties = new Properties();
     private boolean mainPageIncluded;
     private boolean bytecodeLogging;
-    private File debugInformation;
+    private boolean debugInformationGenerated;
-    private String sourceMapsFileName;
     private boolean sourceMapsFileGenerated;
+    private boolean incremental;
+    private File cacheDirectory = new File("./teavm-cache");
     private List<ClassHolderTransformer> transformers = new ArrayList<>();
     private List<ClassAlias> classAliases = new ArrayList<>();
     private List<MethodAlias> methodAliases = new ArrayList<>();
     private TeaVMToolLog log = new EmptyTeaVMToolLog();
     private ClassLoader classLoader = TeaVMTool.class.getClassLoader();
+    private DiskCachedClassHolderSource cachedClassSource;
+    private DiskProgramCache programCache;
+    private DiskRegularMethodNodeCache astCache;
+    private FileSymbolTable symbolTable;
+    private FileSymbolTable fileTable;
 
     public File getTargetDirectory() {
         return targetDirectory;
@@ -77,6 +84,14 @@ public class TeaVMTool {
         this.minifying = minifying;
     }
 
+    public boolean isIncremental() {
+        return incremental;
+    }
+
+    public void setIncremental(boolean incremental) {
+        this.incremental = incremental;
+    }
+
     public String getMainClass() {
         return mainClass;
     }
@@ -109,20 +124,20 @@ public class TeaVMTool {
         this.bytecodeLogging = bytecodeLogging;
     }
 
-    public File getDebugInformation() {
+    public boolean isDebugInformationGenerated() {
-        return debugInformation;
+        return debugInformationGenerated;
     }
 
-    public void setDebugInformation(File debugInformation) {
+    public void setDebugInformationGenerated(boolean debugInformationGenerated) {
-        this.debugInformation = debugInformation;
+        this.debugInformationGenerated = debugInformationGenerated;
     }
 
-    public String getSourceMapsFileName() {
+    public File getCacheDirectory() {
-        return sourceMapsFileName;
+        return cacheDirectory;
     }
 
-    public void setSourceMapsFileName(String sourceMapsFileName) {
+    public void setCacheDirectory(File cacheDirectory) {
-        this.sourceMapsFileName = sourceMapsFileName;
+        this.cacheDirectory = cacheDirectory;
     }
 
     public boolean isSourceMapsFileGenerated() {
@@ -169,13 +184,38 @@ public class TeaVMTool {
         try {
             log.info("Building JavaScript file");
             TeaVMBuilder vmBuilder = new TeaVMBuilder();
+            if (incremental) {
+                cacheDirectory.mkdirs();
+                symbolTable = new FileSymbolTable(new File(cacheDirectory, "symbols"));
+                fileTable = new FileSymbolTable(new File(cacheDirectory, "files"));
+                ClasspathClassHolderSource innerClassSource = new ClasspathClassHolderSource(classLoader);
+                ClassHolderSource classSource = new PreOptimizingClassHolderSource(innerClassSource);
+                cachedClassSource = new DiskCachedClassHolderSource(cacheDirectory, symbolTable, fileTable,
+                        classSource, innerClassSource);
+                programCache = new DiskProgramCache(cacheDirectory, symbolTable, fileTable, innerClassSource);
+                astCache = new DiskRegularMethodNodeCache(cacheDirectory, symbolTable, fileTable, innerClassSource);
+                try {
+                    symbolTable.update();
+                    fileTable.update();
+                } catch (IOException e) {
+                    log.info("Cache was not read");
+                }
+                vmBuilder.setClassLoader(classLoader).setClassSource(cachedClassSource);
+            } else {
                 vmBuilder.setClassLoader(classLoader).setClassSource(new ClasspathClassHolderSource(classLoader));
+            }
             TeaVM vm = vmBuilder.build();
             vm.setMinifying(minifying);
             vm.setBytecodeLogging(bytecodeLogging);
             vm.setProperties(properties);
-            DebugInformationBuilder debugEmitter = debugInformation != null ? new DebugInformationBuilder() : null;
+            DebugInformationBuilder debugEmitter = debugInformationGenerated || sourceMapsFileGenerated ?
+                    new DebugInformationBuilder() : null;
             vm.setDebugEmitter(debugEmitter);
+            vm.setIncremental(incremental);
+            if (incremental) {
+                vm.setAstCache(astCache);
+                vm.setProgramCache(programCache);
+            }
             vm.installPlugins();
             for (ClassHolderTransformer transformer : transformers) {
                 vm.add(transformer);
@@ -215,17 +255,17 @@ public class TeaVMTool {
                 vm.build(writer, new DirectoryBuildTarget(targetDirectory));
                 vm.checkForMissingItems();
                 log.info("JavaScript file successfully built");
-                if (debugInformation != null) {
+                if (debugInformationGenerated) {
                     DebugInformation debugInfo = debugEmitter.getDebugInformation();
-                    try (OutputStream debugInfoOut = new FileOutputStream(debugInformation)) {
+                    try (OutputStream debugInfoOut = new FileOutputStream(new File(targetDirectory,
+                            targetFileName + ".teavmdbg"))) {
                         debugInfo.write(debugInfoOut);
                     }
                     log.info("Debug information successfully written");
-                    if (sourceMapsFileGenerated) {
-                        String sourceMapsFileName = this.sourceMapsFileName;
-                        if (sourceMapsFileName == null) {
-                            sourceMapsFileName = targetFileName + ".map";
                 }
+                if (sourceMapsFileGenerated) {
+                    DebugInformation debugInfo = debugEmitter.getDebugInformation();
+                    String sourceMapsFileName = targetFileName + ".map";
                     writer.append("\n//# sourceMappingURL=").append(sourceMapsFileName);
                     try (Writer sourceMapsOut = new OutputStreamWriter(new FileOutputStream(
                             new File(targetDirectory, sourceMapsFileName)), "UTF-8")) {
@@ -233,6 +273,14 @@ public class TeaVMTool {
                     }
                     log.info("Source maps successfully written");
                 }
+                if (incremental) {
+                    programCache.flush();
+                    astCache.flush();
+                    cachedClassSource.flush();
+                    symbolTable.flush();
+                    fileTable.flush();
+                    log.info(mainClass);
+                    log.info("Cache updated");
                 }
             }
             if (runtime == RuntimeCopyOperation.SEPARATE) {

teavm-maven-plugin/src/main/java/org/teavm/maven/BuildJavascriptMojo.java

@@ -78,7 +78,13 @@ public class BuildJavascriptMojo extends AbstractMojo {
     private boolean debugInformationGenerated;
 
     @Parameter
-    private File debugInformationFile;
+    private boolean sourceMapsGenerated;
+
+    @Parameter
+    private boolean incremental;
+
+    @Parameter(defaultValue = "${project.build.directory}/teavm-cache")
+    private File cacheDirectory;
 
     @Parameter
     private String[] transformers;
@@ -151,12 +157,28 @@ public class BuildJavascriptMojo extends AbstractMojo {
         this.debugInformationGenerated = debugInformationGenerated;
     }
 
-    public File getDebugInformationFile() {
+    public boolean isSourceMapsGenerated() {
-        return debugInformationFile;
+        return sourceMapsGenerated;
     }
 
-    public void setDebugInformationFile(File debugInformationFile) {
+    public void setSourceMapsGenerated(boolean sourceMapsGenerated) {
-        this.debugInformationFile = debugInformationFile;
+        this.sourceMapsGenerated = sourceMapsGenerated;
+    }
+
+    public boolean isIncremental() {
+        return incremental;
+    }
+
+    public void setIncremental(boolean incremental) {
+        this.incremental = incremental;
+    }
+
+    public File getCacheDirectory() {
+        return cacheDirectory;
+    }
+
+    public void setCacheDirectory(File cacheDirectory) {
+        this.cacheDirectory = cacheDirectory;
     }
 
     @Override
@@ -183,10 +205,10 @@ public class BuildJavascriptMojo extends AbstractMojo {
             if (properties != null) {
                 tool.getProperties().putAll(properties);
             }
-            if (isDebugInformationGenerated()) {
+            tool.setCacheDirectory(cacheDirectory);
-                tool.setDebugInformation(debugInformationFile != null ? debugInformationFile :
+            tool.setIncremental(incremental);
-                    new File(targetDirectory, targetFileName + ".teavmdbg"));
+            tool.setDebugInformationGenerated(debugInformationGenerated);
-            }
+            tool.setSourceMapsFileGenerated(sourceMapsGenerated);
             tool.generate();
         } catch (RuntimeException e) {
             throw new MojoExecutionException("Unexpected error occured", e);

teavm-samples/pom.xml

@@ -68,6 +68,7 @@
               <mainClass>org.teavm.samples.HelloWorld</mainClass>
               <mainPageIncluded>true</mainPageIncluded>
               <debugInformationGenerated>true</debugInformationGenerated>
+              <sourceMapsGenerated>true</sourceMapsGenerated>
               <targetDirectory>${project.build.directory}/javascript/hello</targetDirectory>
             </configuration>
           </execution>
@@ -82,6 +83,7 @@
               <mainClass>org.teavm.samples.MatrixMultiplication</mainClass>
               <mainPageIncluded>true</mainPageIncluded>
               <debugInformationGenerated>true</debugInformationGenerated>
+              <sourceMapsGenerated>true</sourceMapsGenerated>
               <targetDirectory>${project.build.directory}/javascript/matrix</targetDirectory>
             </configuration>
           </execution>
@@ -96,6 +98,7 @@
               <mainClass>org.teavm.samples.DateTime</mainClass>
               <targetDirectory>${project.build.directory}/javascript/datetime</targetDirectory>
               <debugInformationGenerated>true</debugInformationGenerated>
+              <sourceMapsGenerated>true</sourceMapsGenerated>
               <properties>
                 <java.util.Locale.available>en_US,en_GB,ru_RU,ru_UA,nl_NL,nl_BE</java.util.Locale.available>
               </properties>