added singleton builder support for javac: guava maps.

3 files changed, 164 insertions, 4 deletions

diff --git a/src/core/lombok/javac/handlers/singulars/JavacGuavaMapSingularizer.java b/src/core/lombok/javac/handlers/singulars/JavacGuavaMapSingularizer.java
new file mode 100644
index 00000000..af39c3ba
--- /dev/null
+++ b/src/core/lombok/javac/handlers/singulars/JavacGuavaMapSingularizer.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2015 The Project Lombok Authors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package lombok.javac.handlers.singulars;
+
+import static lombok.javac.Javac.*;
+import static lombok.javac.handlers.JavacHandlerUtil.*;
+
+import java.util.Collections;
+
+import lombok.core.LombokImmutableList;
+import lombok.core.handlers.HandlerUtil;
+import lombok.javac.JavacNode;
+import lombok.javac.JavacTreeMaker;
+import lombok.javac.handlers.JavacHandlerUtil;
+import lombok.javac.handlers.JavacSingularsRecipes.JavacSingularizer;
+import lombok.javac.handlers.JavacSingularsRecipes.SingularData;
+
+import org.mangosdk.spi.ProviderFor;
+
+import com.sun.tools.javac.code.Flags;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.JCTree.JCBlock;
+import com.sun.tools.javac.tree.JCTree.JCExpression;
+import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
+import com.sun.tools.javac.tree.JCTree.JCModifiers;
+import com.sun.tools.javac.tree.JCTree.JCStatement;
+import com.sun.tools.javac.tree.JCTree.JCTypeParameter;
+import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
+import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.ListBuffer;
+import com.sun.tools.javac.util.Name;
+
+@ProviderFor(JavacSingularizer.class)
+public class JavacGuavaMapSingularizer extends JavacGuavaSingularizer {
+	// TODO cgcc.ImmutableMultimap, cgcc.ImmutableListMultimap, cgcc.ImmutableSetMultimap
+	// TODO cgcc.ImmutableClassToInstanceMap
+	// TODO cgcc.ImmutableRangeMap
+	
+	@Override public LombokImmutableList<String> getSupportedTypes() {
+		return LombokImmutableList.of(
+				"com.google.common.collect.ImmutableMap", 
+				"com.google.common.collect.ImmutableBiMap", 
+				"com.google.common.collect.ImmutableSortedMap");
+	}
+	
+	@Override public java.util.List<JavacNode> generateFields(SingularData data, JavacNode builderType, JCTree source) {
+		JavacTreeMaker maker = builderType.getTreeMaker();
+		JCExpression type = JavacHandlerUtil.chainDots(builderType, "com", "google", "common", "collect", getSimpleTargetTypeName(data), "Builder");
+		type = addTypeArgs(2, false, builderType, type, data.getTypeArgs(), source);
+		
+		JCVariableDecl buildField = maker.VarDef(maker.Modifiers(Flags.PRIVATE), data.getPluralName(), type, null);
+		return Collections.singletonList(injectField(builderType, buildField));
+	}
+	
+	@Override public void generateMethods(SingularData data, JavacNode builderType, JCTree source, boolean fluent, boolean chain) {
+		JavacTreeMaker maker = builderType.getTreeMaker();
+		JCExpression returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
+		JCStatement returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
+		generateSingularMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
+		
+		returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
+		returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
+		generatePluralMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
+	}
+	
+	private void generateSingularMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
+		List<JCTypeParameter> typeParams = List.nil();
+		List<JCExpression> thrown = List.nil();
+		
+		Name keyName = builderType.toName(data.getSingularName() + "$key");
+		Name valueName = builderType.toName(data.getSingularName() + "$value");
+		
+		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
+		ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
+		statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, true, source));
+		JCExpression thisDotFieldDotPut = chainDots(builderType, "this", data.getPluralName().toString(), "put");
+		JCExpression invokePut = maker.Apply(List.<JCExpression>nil(), thisDotFieldDotPut, List.<JCExpression>of(maker.Ident(keyName), maker.Ident(valueName)));
+		statements.append(maker.Exec(invokePut));
+		if (returnStatement != null) statements.append(returnStatement);
+		JCBlock body = maker.Block(0, statements.toList());
+		Name name = data.getSingularName();
+		long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
+		if (!fluent) name = builderType.toName(HandlerUtil.buildAccessorName("put", name.toString()));
+		JCExpression keyType = cloneParamType(0, maker, data.getTypeArgs(), builderType, source);
+		JCExpression valueType = cloneParamType(1, maker, data.getTypeArgs(), builderType, source);
+		JCVariableDecl paramKey = maker.VarDef(maker.Modifiers(paramFlags), keyName, keyType, null);
+		JCVariableDecl paramValue = maker.VarDef(maker.Modifiers(paramFlags), valueName, valueType, null);
+		JCMethodDecl method = maker.MethodDef(mods, name, returnType, typeParams, List.of(paramKey, paramValue), thrown, body, null);
+		injectMethod(builderType, method);
+	}
+	
+	private void generatePluralMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
+		List<JCTypeParameter> typeParams = List.nil();
+		List<JCExpression> thrown = List.nil();
+		JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
+		ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
+		statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, true, source));
+		JCExpression thisDotFieldDotPutAll = chainDots(builderType, "this", data.getPluralName().toString(), "putAll");
+		JCExpression invokePutAll = maker.Apply(List.<JCExpression>nil(), thisDotFieldDotPutAll, List.<JCExpression>of(maker.Ident(data.getPluralName())));
+		statements.append(maker.Exec(invokePutAll));
+		if (returnStatement != null) statements.append(returnStatement);
+		JCBlock body = maker.Block(0, statements.toList());
+		Name name = data.getPluralName();
+		long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
+		if (!fluent) name = builderType.toName(HandlerUtil.buildAccessorName("putAll", name.toString()));
+		JCExpression paramType = chainDots(builderType, "java", "util", "Map");
+		paramType = addTypeArgs(2, true, builderType, paramType, data.getTypeArgs(), source);
+		JCVariableDecl param = maker.VarDef(maker.Modifiers(paramFlags), data.getPluralName(), paramType, null);
+		JCMethodDecl method = maker.MethodDef(mods, name, returnType, typeParams, List.of(param), thrown, body, null);
+		injectMethod(builderType, method);
+	}
+	
+	@Override public void appendBuildCode(SingularData data, JavacNode builderType, JCTree source, ListBuffer<JCStatement> statements, Name targetVariableName) {
+		JavacTreeMaker maker = builderType.getTreeMaker();
+		List<JCExpression> jceBlank = List.nil();
+		
+		JCExpression varType = chainDotsString(builderType, data.getTargetFqn());
+		varType = addTypeArgs(2, false, builderType, varType, data.getTypeArgs(), source);
+		
+		JCExpression empty; {
+			//ImmutableX.of()
+			JCExpression emptyMethod = chainDots(builderType, "com", "google", "common", "collect", getSimpleTargetTypeName(data), "of");
+			empty = maker.Apply(jceBlank, emptyMethod, jceBlank);
+		}
+		
+		JCExpression invokeBuild; {
+			//this.pluralName.build();
+			invokeBuild = maker.Apply(jceBlank, chainDots(builderType, "this", data.getPluralName().toString(), "build"), jceBlank);
+		}
+		
+		JCExpression isNull; {
+			//this.pluralName == null
+			isNull = maker.Binary(CTC_EQUAL, maker.Select(maker.Ident(builderType.toName("this")), data.getPluralName()), maker.Literal(CTC_BOT, null));
+		}
+		
+		JCExpression init = maker.Conditional(isNull, empty, invokeBuild); // this.pluralName == null ? ImmutableX.of() : this.pluralName.build()
+		
+		JCStatement jcs = maker.VarDef(maker.Modifiers(0), data.getPluralName(), varType, init);
+		statements.append(jcs);
+	}
+}
diff --git a/src/core/lombok/javac/handlers/singulars/JavacGuavaSetListSingularizer.java b/src/core/lombok/javac/handlers/singulars/JavacGuavaSetListSingularizer.java
index 3e050199..54ba091b 100644
--- a/src/core/lombok/javac/handlers/singulars/JavacGuavaSetListSingularizer.java
+++ b/src/core/lombok/javac/handlers/singulars/JavacGuavaSetListSingularizer.java
@@ -51,9 +51,8 @@ import com.sun.tools.javac.util.Name;
 
 @ProviderFor(JavacSingularizer.class)
 public class JavacGuavaSetListSingularizer extends JavacGuavaSingularizer {
-	// TODO all maps
-	// TODO com.google.common.collect.ImmutableTable.
-	// TODO com.google.common.collect.ImmutableRangeSet.
+	// TODO com.google.common.collect.ImmutableTable
+	// TODO com.google.common.collect.ImmutableRangeSet
 	// TODO com.google.common.collect.ImmutableMultiset and com.google.common.collect.ImmutableSortedMultiset
 	@Override public LombokImmutableList<String> getSupportedTypes() {
 		return LombokImmutableList.of(
diff --git a/src/core/lombok/javac/handlers/singulars/JavacGuavaSingularizer.java b/src/core/lombok/javac/handlers/singulars/JavacGuavaSingularizer.java
index 45450603..ae9f34c5 100644
--- a/src/core/lombok/javac/handlers/singulars/JavacGuavaSingularizer.java
+++ b/src/core/lombok/javac/handlers/singulars/JavacGuavaSingularizer.java
@@ -42,7 +42,8 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
 	}
 	
 	protected String getBuilderMethodName(SingularData data) {
-		if (data.getTargetSimpleType().equals("ImmutableSortedSet")) return "naturalOrder";
+		String simpleTypeName = data.getTargetSimpleType();
+		if ("ImmutableSortedSet".equals(simpleTypeName) || "ImmutableSortedMap".equals(simpleTypeName)) return "naturalOrder";
 		return "builder";
 	}