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added singleton builder support for javac: guava maps.
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Reinier Zwitserloot committed
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/*
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* Copyright (C) 2015 The Project Lombok Authors.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package lombok.javac.handlers.singulars;
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import static lombok.javac.Javac.*;
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import static lombok.javac.handlers.JavacHandlerUtil.*;
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import java.util.Collections;
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import lombok.core.LombokImmutableList;
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import lombok.core.handlers.HandlerUtil;
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import lombok.javac.JavacNode;
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import lombok.javac.JavacTreeMaker;
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import lombok.javac.handlers.JavacHandlerUtil;
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import lombok.javac.handlers.JavacSingularsRecipes.JavacSingularizer;
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import lombok.javac.handlers.JavacSingularsRecipes.SingularData;
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import org.mangosdk.spi.ProviderFor;
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import com.sun.tools.javac.code.Flags;
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import com.sun.tools.javac.tree.JCTree;
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import com.sun.tools.javac.tree.JCTree.JCBlock;
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import com.sun.tools.javac.tree.JCTree.JCExpression;
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import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
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import com.sun.tools.javac.tree.JCTree.JCModifiers;
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import com.sun.tools.javac.tree.JCTree.JCStatement;
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import com.sun.tools.javac.tree.JCTree.JCTypeParameter;
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import com.sun.tools.javac.tree.JCTree.JCVariableDecl;
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import com.sun.tools.javac.util.List;
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import com.sun.tools.javac.util.ListBuffer;
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import com.sun.tools.javac.util.Name;
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@ProviderFor(JavacSingularizer.class)
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public class JavacGuavaMapSingularizer extends JavacGuavaSingularizer {
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// TODO cgcc.ImmutableMultimap, cgcc.ImmutableListMultimap, cgcc.ImmutableSetMultimap
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// TODO cgcc.ImmutableClassToInstanceMap
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// TODO cgcc.ImmutableRangeMap
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@Override public LombokImmutableList<String> getSupportedTypes() {
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return LombokImmutableList.of(
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"com.google.common.collect.ImmutableMap",
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"com.google.common.collect.ImmutableBiMap",
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"com.google.common.collect.ImmutableSortedMap");
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}
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@Override public java.util.List<JavacNode> generateFields(SingularData data, JavacNode builderType, JCTree source) {
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JavacTreeMaker maker = builderType.getTreeMaker();
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JCExpression type = JavacHandlerUtil.chainDots(builderType, "com", "google", "common", "collect", getSimpleTargetTypeName(data), "Builder");
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type = addTypeArgs(2, false, builderType, type, data.getTypeArgs(), source);
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JCVariableDecl buildField = maker.VarDef(maker.Modifiers(Flags.PRIVATE), data.getPluralName(), type, null);
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return Collections.singletonList(injectField(builderType, buildField));
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}
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@Override public void generateMethods(SingularData data, JavacNode builderType, JCTree source, boolean fluent, boolean chain) {
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JavacTreeMaker maker = builderType.getTreeMaker();
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JCExpression returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
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JCStatement returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
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generateSingularMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
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returnType = chain ? cloneSelfType(builderType) : maker.Type(createVoidType(maker, CTC_VOID));
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returnStatement = chain ? maker.Return(maker.Ident(builderType.toName("this"))) : null;
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generatePluralMethod(maker, returnType, returnStatement, data, builderType, source, fluent);
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}
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private void generateSingularMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
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List<JCTypeParameter> typeParams = List.nil();
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List<JCExpression> thrown = List.nil();
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Name keyName = builderType.toName(data.getSingularName() + "$key");
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Name valueName = builderType.toName(data.getSingularName() + "$value");
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JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
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ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
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statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, true, source));
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JCExpression thisDotFieldDotPut = chainDots(builderType, "this", data.getPluralName().toString(), "put");
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JCExpression invokePut = maker.Apply(List.<JCExpression>nil(), thisDotFieldDotPut, List.<JCExpression>of(maker.Ident(keyName), maker.Ident(valueName)));
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statements.append(maker.Exec(invokePut));
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if (returnStatement != null) statements.append(returnStatement);
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JCBlock body = maker.Block(0, statements.toList());
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Name name = data.getSingularName();
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long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
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if (!fluent) name = builderType.toName(HandlerUtil.buildAccessorName("put", name.toString()));
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JCExpression keyType = cloneParamType(0, maker, data.getTypeArgs(), builderType, source);
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JCExpression valueType = cloneParamType(1, maker, data.getTypeArgs(), builderType, source);
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JCVariableDecl paramKey = maker.VarDef(maker.Modifiers(paramFlags), keyName, keyType, null);
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JCVariableDecl paramValue = maker.VarDef(maker.Modifiers(paramFlags), valueName, valueType, null);
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JCMethodDecl method = maker.MethodDef(mods, name, returnType, typeParams, List.of(paramKey, paramValue), thrown, body, null);
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injectMethod(builderType, method);
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}
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private void generatePluralMethod(JavacTreeMaker maker, JCExpression returnType, JCStatement returnStatement, SingularData data, JavacNode builderType, JCTree source, boolean fluent) {
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List<JCTypeParameter> typeParams = List.nil();
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List<JCExpression> thrown = List.nil();
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JCModifiers mods = maker.Modifiers(Flags.PUBLIC);
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ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
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statements.append(createConstructBuilderVarIfNeeded(maker, data, builderType, true, source));
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JCExpression thisDotFieldDotPutAll = chainDots(builderType, "this", data.getPluralName().toString(), "putAll");
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JCExpression invokePutAll = maker.Apply(List.<JCExpression>nil(), thisDotFieldDotPutAll, List.<JCExpression>of(maker.Ident(data.getPluralName())));
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statements.append(maker.Exec(invokePutAll));
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if (returnStatement != null) statements.append(returnStatement);
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JCBlock body = maker.Block(0, statements.toList());
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Name name = data.getPluralName();
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long paramFlags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, builderType.getContext());
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if (!fluent) name = builderType.toName(HandlerUtil.buildAccessorName("putAll", name.toString()));
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JCExpression paramType = chainDots(builderType, "java", "util", "Map");
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paramType = addTypeArgs(2, true, builderType, paramType, data.getTypeArgs(), source);
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JCVariableDecl param = maker.VarDef(maker.Modifiers(paramFlags), data.getPluralName(), paramType, null);
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JCMethodDecl method = maker.MethodDef(mods, name, returnType, typeParams, List.of(param), thrown, body, null);
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injectMethod(builderType, method);
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}
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@Override public void appendBuildCode(SingularData data, JavacNode builderType, JCTree source, ListBuffer<JCStatement> statements, Name targetVariableName) {
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JavacTreeMaker maker = builderType.getTreeMaker();
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List<JCExpression> jceBlank = List.nil();
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JCExpression varType = chainDotsString(builderType, data.getTargetFqn());
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varType = addTypeArgs(2, false, builderType, varType, data.getTypeArgs(), source);
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JCExpression empty; {
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//ImmutableX.of()
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JCExpression emptyMethod = chainDots(builderType, "com", "google", "common", "collect", getSimpleTargetTypeName(data), "of");
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empty = maker.Apply(jceBlank, emptyMethod, jceBlank);
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}
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JCExpression invokeBuild; {
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//this.pluralName.build();
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invokeBuild = maker.Apply(jceBlank, chainDots(builderType, "this", data.getPluralName().toString(), "build"), jceBlank);
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}
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JCExpression isNull; {
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//this.pluralName == null
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isNull = maker.Binary(CTC_EQUAL, maker.Select(maker.Ident(builderType.toName("this")), data.getPluralName()), maker.Literal(CTC_BOT, null));
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}
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JCExpression init = maker.Conditional(isNull, empty, invokeBuild); // this.pluralName == null ? ImmutableX.of() : this.pluralName.build()
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JCStatement jcs = maker.VarDef(maker.Modifiers(0), data.getPluralName(), varType, init);
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statements.append(jcs);
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}
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}
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@@ -51,9 +51,8 @@ import com.sun.tools.javac.util.Name;
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@ProviderFor(JavacSingularizer.class)
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public class JavacGuavaSetListSingularizer extends JavacGuavaSingularizer {
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// TODO all maps
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// TODO com.google.common.collect.ImmutableTable.
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// TODO com.google.common.collect.ImmutableRangeSet.
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// TODO com.google.common.collect.ImmutableTable
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// TODO com.google.common.collect.ImmutableRangeSet
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// TODO com.google.common.collect.ImmutableMultiset and com.google.common.collect.ImmutableSortedMultiset
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@Override public LombokImmutableList<String> getSupportedTypes() {
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return LombokImmutableList.of(
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@@ -42,7 +42,8 @@ abstract class JavacGuavaSingularizer extends JavacSingularizer {
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}
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protected String getBuilderMethodName(SingularData data) {
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if (data.getTargetSimpleType().equals("ImmutableSortedSet")) return "naturalOrder";
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String simpleTypeName = data.getTargetSimpleType();
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if ("ImmutableSortedSet".equals(simpleTypeName) || "ImmutableSortedMap".equals(simpleTypeName)) return "naturalOrder";
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return "builder";
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}
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@@ -0,0 +1,75 @@
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.ImmutableBiMap;
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import com.google.common.collect.ImmutableSortedMap;
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class BuilderSingletonGuavaMaps<K, V> {
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private ImmutableMap<K, V> battleaxes;
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private ImmutableSortedMap<Integer, ? extends V> vertices;
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private ImmutableBiMap rawMap;
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@java.lang.SuppressWarnings("all")
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BuilderSingletonGuavaMaps(final ImmutableMap<K, V> battleaxes, final ImmutableSortedMap<Integer, ? extends V> vertices, final ImmutableBiMap rawMap) {
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this.battleaxes = battleaxes;
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this.vertices = vertices;
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this.rawMap = rawMap;
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}
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@java.lang.SuppressWarnings("all")
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public static class BuilderSingletonGuavaMapsBuilder<K, V> {
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private com.google.common.collect.ImmutableMap.Builder<K, V> battleaxes;
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private com.google.common.collect.ImmutableSortedMap.Builder<Integer, V> vertices;
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private com.google.common.collect.ImmutableBiMap.Builder<java.lang.Object, java.lang.Object> rawMap;
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@java.lang.SuppressWarnings("all")
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BuilderSingletonGuavaMapsBuilder() {
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMapsBuilder<K, V> battleaxe(final K battleaxe$key, final V battleaxe$value) {
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if (this.battleaxes == null) this.battleaxes = com.google.common.collect.ImmutableMap.builder();
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this.battleaxes.put(battleaxe$key, battleaxe$value);
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return this;
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMapsBuilder<K, V> battleaxes(final java.util.Map<? extends K, ? extends V> battleaxes) {
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if (this.battleaxes == null) this.battleaxes = com.google.common.collect.ImmutableMap.builder();
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this.battleaxes.putAll(battleaxes);
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return this;
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMapsBuilder<K, V> vertex(final Integer vertex$key, final V vertex$value) {
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if (this.vertices == null) this.vertices = com.google.common.collect.ImmutableSortedMap.naturalOrder();
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this.vertices.put(vertex$key, vertex$value);
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return this;
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMapsBuilder<K, V> vertices(final java.util.Map<? extends Integer, ? extends V> vertices) {
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if (this.vertices == null) this.vertices = com.google.common.collect.ImmutableSortedMap.naturalOrder();
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this.vertices.putAll(vertices);
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return this;
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMapsBuilder<K, V> rawMap(final java.lang.Object rawMap$key, final java.lang.Object rawMap$value) {
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if (this.rawMap == null) this.rawMap = com.google.common.collect.ImmutableBiMap.builder();
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this.rawMap.put(rawMap$key, rawMap$value);
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return this;
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMapsBuilder<K, V> rawMap(final java.util.Map<?, ?> rawMap) {
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if (this.rawMap == null) this.rawMap = com.google.common.collect.ImmutableBiMap.builder();
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this.rawMap.putAll(rawMap);
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return this;
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}
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@java.lang.SuppressWarnings("all")
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public BuilderSingletonGuavaMaps<K, V> build() {
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com.google.common.collect.ImmutableMap<K, V> battleaxes = this.battleaxes == null ? com.google.common.collect.ImmutableMap.of() : this.battleaxes.build();
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com.google.common.collect.ImmutableSortedMap<Integer, V> vertices = this.vertices == null ? com.google.common.collect.ImmutableSortedMap.of() : this.vertices.build();
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com.google.common.collect.ImmutableBiMap<java.lang.Object, java.lang.Object> rawMap = this.rawMap == null ? com.google.common.collect.ImmutableBiMap.of() : this.rawMap.build();
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return new BuilderSingletonGuavaMaps<K, V>(battleaxes, vertices, rawMap);
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}
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@java.lang.Override
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@java.lang.SuppressWarnings("all")
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public java.lang.String toString() {
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return "BuilderSingletonGuavaMaps.BuilderSingletonGuavaMapsBuilder(battleaxes=" + this.battleaxes + ", vertices=" + this.vertices + ", rawMap=" + this.rawMap + ")";
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}
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}
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@java.lang.SuppressWarnings("all")
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public static <K, V> BuilderSingletonGuavaMapsBuilder<K, V> builder() {
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return new BuilderSingletonGuavaMapsBuilder<K, V>();
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}
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}
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@@ -0,0 +1,12 @@
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.ImmutableBiMap;
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import com.google.common.collect.ImmutableSortedMap;
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import lombok.Singular;
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@lombok.Builder
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class BuilderSingletonGuavaMaps<K, V> {
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@Singular private ImmutableMap<K, V> battleaxes;
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@Singular private ImmutableSortedMap<Integer, ? extends V> vertices;
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@Singular("rawMap") private ImmutableBiMap rawMap;
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}
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