/*
* 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.eclipse.handlers.singulars;
import static lombok.eclipse.Eclipse.*;
import static lombok.eclipse.handlers.EclipseHandlerUtil.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import lombok.core.GuavaTypeMap;
import lombok.core.handlers.HandlerUtil;
import lombok.eclipse.EclipseNode;
import lombok.eclipse.handlers.EclipseSingularsRecipes.EclipseSingularizer;
import lombok.eclipse.handlers.EclipseSingularsRecipes.SingularData;
import org.eclipse.jdt.internal.compiler.ast.Argument;
import org.eclipse.jdt.internal.compiler.ast.Assignment;
import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
import org.eclipse.jdt.internal.compiler.ast.ConditionalExpression;
import org.eclipse.jdt.internal.compiler.ast.EqualExpression;
import org.eclipse.jdt.internal.compiler.ast.Expression;
import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
import org.eclipse.jdt.internal.compiler.ast.FieldReference;
import org.eclipse.jdt.internal.compiler.ast.IfStatement;
import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
import org.eclipse.jdt.internal.compiler.ast.MessageSend;
import org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
import org.eclipse.jdt.internal.compiler.ast.NullLiteral;
import org.eclipse.jdt.internal.compiler.ast.OperatorIds;
import org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference;
import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
import org.eclipse.jdt.internal.compiler.ast.ReturnStatement;
import org.eclipse.jdt.internal.compiler.ast.SingleNameReference;
import org.eclipse.jdt.internal.compiler.ast.Statement;
import org.eclipse.jdt.internal.compiler.ast.ThisReference;
import org.eclipse.jdt.internal.compiler.ast.TypeReference;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
import org.eclipse.jdt.internal.compiler.lookup.TypeIds;
abstract class EclipseGuavaSingularizer extends EclipseSingularizer {
protected static final char[][] JAVA_UTIL_MAP = {
{'j', 'a', 'v', 'a'}, {'u', 't', 'i', 'l'}, {'M', 'a', 'p'}
};
protected String getSimpleTargetTypeName(SingularData data) {
return GuavaTypeMap.getGuavaTypeName(data.getTargetFqn());
}
protected char[] getBuilderMethodName(SingularData data) {
String simpleTypeName = getSimpleTargetTypeName(data);
if ("ImmutableSortedSet".equals(simpleTypeName) || "ImmutableSortedMap".equals(simpleTypeName)) return "naturalOrder".toCharArray();
return "builder".toCharArray();
}
protected abstract boolean isMap();
protected char[][] makeGuavaTypeName(String simpleName, boolean addBuilder) {
char[][] tokenizedName = new char[addBuilder ? 6 : 5][];
tokenizedName[0] = new char[] {'c', 'o', 'm'};
tokenizedName[1] = new char[] {'g', 'o', 'o', 'g', 'l', 'e'};
tokenizedName[2] = new char[] {'c', 'o', 'm', 'm', 'o', 'n'};
tokenizedName[3] = new char[] {'c', 'o', 'l', 'l', 'e', 'c', 't'};
tokenizedName[4] = simpleName.toCharArray();
if (addBuilder) tokenizedName[5] = new char[] { 'B', 'u', 'i', 'l', 'd', 'e', 'r'};
return tokenizedName;
}
@Override public List<EclipseNode> generateFields(SingularData data, EclipseNode builderType) {
char[][] tokenizedName = makeGuavaTypeName(getSimpleTargetTypeName(data), true);
TypeReference type = new QualifiedTypeReference(tokenizedName, NULL_POSS);
type = addTypeArgs(isMap() ? 2 : 1, false, builderType, type, data.getTypeArgs());
FieldDeclaration buildField = new FieldDeclaration(data.getPluralName(), 0, -1);
buildField.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
buildField.modifiers = ClassFileConstants.AccPrivate;
buildField.declarationSourceEnd = -1;
buildField.type = type;
data.setGeneratedByRecursive(buildField);
return Collections.singletonList(injectFieldAndMarkGenerated(builderType, buildField));
}
@Override public void generateMethods(SingularData data, EclipseNode builderType, boolean fluent, boolean chain) {
TypeReference returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
Statement returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
generateSingularMethod(returnType, returnStatement, data, builderType, fluent);
returnType = chain ? cloneSelfType(builderType) : TypeReference.baseTypeReference(TypeIds.T_void, 0);
returnStatement = chain ? new ReturnStatement(new ThisReference(0, 0), 0, 0) : null;
generatePluralMethod(returnType, returnStatement, data, builderType, fluent);
}
void generateSingularMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType, boolean fluent) {
boolean mapMode = isMap();
char[] keyName = !mapMode ? data.getSingularName() : (new String(data.getSingularName()) + "$key").toCharArray();
char[] valueName = !mapMode ? null : (new String(data.getSingularName()) + "$value").toCharArray();
MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
md.modifiers = ClassFileConstants.AccPublic;
List<Statement> statements = new ArrayList<Statement>();
statements.add(createConstructBuilderVarIfNeeded(data, builderType));
FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
thisDotField.receiver = new ThisReference(0, 0);
MessageSend thisDotFieldDotAdd = new MessageSend();
if (mapMode) {
thisDotFieldDotAdd.arguments = new Expression[] {
new SingleNameReference(keyName, 0L),
new SingleNameReference(valueName, 0L)};
} else {
thisDotFieldDotAdd.arguments = new Expression[] {new SingleNameReference(keyName, 0L)};
}
thisDotFieldDotAdd.receiver = thisDotField;
thisDotFieldDotAdd.selector = (mapMode ? "put" : "add").toCharArray();
statements.add(thisDotFieldDotAdd);
if (returnStatement != null) statements.add(returnStatement);
md.statements = statements.toArray(new Statement[statements.size()]);
if (mapMode) {
TypeReference keyType = cloneParamType(0, data.getTypeArgs(), builderType);
Argument keyParam = new Argument(keyName, 0, keyType, 0);
TypeReference valueType = cloneParamType(1, data.getTypeArgs(), builderType);
Argument valueParam = new Argument(valueName, 0, valueType, 0);
md.arguments = new Argument[] {keyParam, valueParam};
} else {
TypeReference paramType = cloneParamType(0, data.getTypeArgs(), builderType);
Argument param = new Argument(keyName, 0, paramType, 0);
md.arguments = new Argument[] {param};
}
md.returnType = returnType;
md.selector = fluent ? data.getSingularName() : HandlerUtil.buildAccessorName(mapMode ? "put" : "add", new String(data.getSingularName())).toCharArray();
data.setGeneratedByRecursive(md);
injectMethod(builderType, md);
}
void generatePluralMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType, boolean fluent) {
boolean mapMode = isMap();
MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
md.modifiers = ClassFileConstants.AccPublic;
List<Statement> statements = new ArrayList<Statement>();
statements.add(createConstructBuilderVarIfNeeded(data, builderType));
FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
thisDotField.receiver = new ThisReference(0, 0);
MessageSend thisDotFieldDotAddAll = new MessageSend();
thisDotFieldDotAddAll.arguments = new Expression[] {new SingleNameReference(data.getPluralName(), 0L)};
thisDotFieldDotAddAll.receiver = thisDotField;
thisDotFieldDotAddAll.selector = (mapMode ? "putAll" : "addAll").toCharArray();
statements.add(thisDotFieldDotAddAll);
if (returnStatement != null) statements.add(returnStatement);
md.statements = statements.toArray(new Statement[statements.size()]);
TypeReference paramType;
if (mapMode) {
paramType = new QualifiedTypeReference(JAVA_UTIL_MAP, NULL_POSS);
paramType = addTypeArgs(2, true, builderType, paramType, data.getTypeArgs());
} else {
paramType = new QualifiedTypeReference(TypeConstants.JAVA_LANG_ITERABLE, NULL_POSS);
paramType = addTypeArgs(1, true, builderType, paramType, data.getTypeArgs());
}
Argument param = new Argument(data.getPluralName(), 0, paramType, 0);
md.arguments = new Argument[] {param};
md.returnType = returnType;
md.selector = fluent ? data.getPluralName() : HandlerUtil.buildAccessorName(mapMode ? "putAll" : "addAll", new String(data.getPluralName())).toCharArray();
data.setGeneratedByRecursive(md);
injectMethod(builderType, md);
}
@Override public void appendBuildCode(SingularData data, EclipseNode builderType, List<Statement> statements, char[] targetVariableName) {
boolean mapMode = isMap();
TypeReference varType = new QualifiedTypeReference(fromQualifiedName(data.getTargetFqn()), NULL_POSS);
varType = addTypeArgs(mapMode ? 2 : 1, false, builderType, varType, data.getTypeArgs());
MessageSend emptyInvoke; {
//ImmutableX.of()
emptyInvoke = new MessageSend();
emptyInvoke.selector = new char[] {'o', 'f'};
emptyInvoke.receiver = new QualifiedNameReference(makeGuavaTypeName(getSimpleTargetTypeName(data), false), NULL_POSS, 0, 0);
emptyInvoke.typeArguments = createTypeArgs(mapMode ? 2 : 1, false, builderType, data.getTypeArgs());
}
MessageSend invokeBuild; {
//this.pluralName.build();
invokeBuild = new MessageSend();
invokeBuild.selector = new char[] {'b', 'u', 'i', 'l', 'd'};
FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
thisDotField.receiver = new ThisReference(0, 0);
invokeBuild.receiver = thisDotField;
}
Expression isNull; {
//this.pluralName == null
FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
thisDotField.receiver = new ThisReference(0, 0);
isNull = new EqualExpression(thisDotField, new NullLiteral(0, 0), OperatorIds.EQUAL_EQUAL);
}
Expression init = new ConditionalExpression(isNull, emptyInvoke, invokeBuild);
LocalDeclaration varDefStat = new LocalDeclaration(data.getPluralName(), 0, 0);
varDefStat.type = varType;
varDefStat.initialization = init;
statements.add(varDefStat);
}
protected Statement createConstructBuilderVarIfNeeded(SingularData data, EclipseNode builderType) {
FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
thisDotField.receiver = new ThisReference(0, 0);
FieldReference thisDotField2 = new FieldReference(data.getPluralName(), 0L);
thisDotField2.receiver = new ThisReference(0, 0);
Expression cond = new EqualExpression(thisDotField, new NullLiteral(0, 0), OperatorIds.EQUAL_EQUAL);
MessageSend createBuilderInvoke = new MessageSend();
char[][] tokenizedName = makeGuavaTypeName(getSimpleTargetTypeName(data), false);
createBuilderInvoke.receiver = new QualifiedNameReference(tokenizedName, NULL_POSS, 0, 0);
createBuilderInvoke.selector = getBuilderMethodName(data);
return new IfStatement(cond, new Assignment(thisDotField2, createBuilderInvoke, 0), 0, 0);
}
}