229 lines
14 KiB
Java
229 lines
14 KiB
Java
package io.gitlab.jfronny.commons.serialize.generator.gprocessor;
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import com.squareup.javapoet.*;
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import io.gitlab.jfronny.commons.serialize.generator.Cl;
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import io.gitlab.jfronny.commons.serialize.generator.SerializableClass;
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import io.gitlab.jfronny.commons.serialize.generator.adapter.Adapters;
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import io.gitlab.jfronny.commons.serialize.generator.core.TypeHelper;
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import io.gitlab.jfronny.commons.serialize.generator.core.value.*;
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import javax.annotation.processing.Messager;
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import javax.lang.model.element.Modifier;
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import javax.lang.model.element.TypeElement;
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import java.util.List;
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import java.util.Set;
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public class InstanceProcessor extends GProcessor {
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public InstanceProcessor(ValueCreator valueCreator, Messager message, boolean hasManifold, boolean disableSafe) {
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super(valueCreator, message, hasManifold, false, disableSafe);
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}
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@Override
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public ClassName generateDelegatingAdapter(TypeSpec.Builder spec, TypeName classType, ClassName generatedClassName) {
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classType = nonGeneric(classType);
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spec.addType(
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TypeSpec.classBuilder("Adapter")
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.addModifiers(Modifier.PUBLIC, Modifier.STATIC)
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.addAnnotation(AnnotationSpec.builder(Cl.SERIALIZER_FOR).addMember("targets", CodeBlock.builder().add("$T.class", classType).build()).build())
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.superclass(ParameterizedTypeName.get(Cl.TYPE_ADAPTER, classType))
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.addMethod(MethodSpec.methodBuilder("serialize")
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.addAnnotation(Override.class)
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.addModifiers(Modifier.PUBLIC)
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.addTypeVariable(TypeVariableName.get("TEx", Exception.class))
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.addTypeVariable(TypeVariableName.get("Writer", ParameterizedTypeName.get(Cl.SERIALIZE_WRITER, TypeVariableName.get("TEx"), TypeVariableName.get("Writer"))))
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.addParameter(classType, "value")
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.addParameter(TypeVariableName.get("Writer"), "writer")
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.addException(TypeVariableName.get("TEx"))
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.addException(Cl.MALFORMED_DATA_EXCEPTION)
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.addCode(generatedClassName.simpleName() + ".serialize(value, writer);")
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.build())
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.addMethod(MethodSpec.methodBuilder("deserialize")
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.addAnnotation(Override.class)
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.addModifiers(Modifier.PUBLIC)
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.addTypeVariable(TypeVariableName.get("TEx", Exception.class))
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.addTypeVariable(TypeVariableName.get("Reader", ParameterizedTypeName.get(Cl.SERIALIZE_READER, TypeVariableName.get("TEx"), TypeVariableName.get("Reader"))))
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.addParameter(TypeVariableName.get("Reader"), "reader")
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.addException(TypeVariableName.get("TEx"))
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.addException(Cl.MALFORMED_DATA_EXCEPTION)
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.returns(classType)
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.addCode("return " + generatedClassName.simpleName() + ".deserialize(reader);")
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.build())
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.build()
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);
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return generatedClassName.nestedClass("Adapter");
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}
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// !!!WARNING!!!
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// A lot of this code is common between InstanceProcessor and StaticProcessor
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// Make sure they don't get out of sync!
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// (Or, alternatively, create one common solution for these)
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// !!!WARNING!!!
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@Override
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public void generateSerialisation(TypeSpec.Builder spec, SerializableClass self, List<TypeVariableName> typeVariables, Set<SerializableClass> otherAdapters) throws ElementException {
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Value value = self.builder() == null ? valueCreator.from(self.classElement(), false) : valueCreator.from(TypeHelper.asDeclaredType(self.builder()).asElement(), true);
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ConstructionSource constructionSource = value.getConstructionSource();
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Properties properties = value.getProperties();
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// public static void write(JsonWriter writer, T value) throws IOException
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{
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CodeBlock.Builder code = CodeBlock.builder();
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code.beginControlFlow("if (value == null)")
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.addStatement("writer.nullValue()")
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.addStatement("return")
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.endControlFlow();
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code.addStatement("writer.beginObject()");
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for (Property.Field param : properties.fields) {
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Property<?> altGetter = Properties.findName(properties.getters, param);
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if (altGetter != null && !isIgnored(altGetter)) continue;
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if (isIgnored(param)) continue;
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Runnable writeGet = () -> code.add("value.$N", param.getCallableName());
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if (param.getType().getKind().isPrimitive()) {
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generateComments(param, code);
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code.addStatement("writer.name($S)", getSerializedName(param));
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Adapters.generateWrite(param, spec, code, typeVariables, otherAdapters, message, writeGet);
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} else {
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code.beginControlFlow("if (value.$N != null || writer.isSerializeNulls())", param.getCallableName());
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generateComments(param, code);
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code.addStatement("writer.name($S)", getSerializedName(param));
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code.addStatement("if (value.$N == null) writer.nullValue()", param.getCallableName());
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code.beginControlFlow("else");
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Adapters.generateWrite(param, spec, code, typeVariables, otherAdapters, message, writeGet);
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code.endControlFlow();
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code.endControlFlow();
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}
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}
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for (Property.Getter param : properties.getters) {
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if (isIgnored(param)) continue;
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if (param.getType().getKind().isPrimitive()) {
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generateComments(param, code);
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code.addStatement("writer.name($S)", getSerializedName(param));
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Adapters.generateWrite(param, spec, code, typeVariables, otherAdapters, message, () -> code.add("value.$N()", param.getCallableName()));
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} else {
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code.addStatement("$T $L$N = value.$N()", param.getType(), "$", param.getCallableName(), param.getCallableName());
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code.beginControlFlow("if ($L$N != null || writer.isSerializeNulls())", "$", param.getCallableName());
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generateComments(param, code);
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code.addStatement("writer.name($S)", getSerializedName(param));
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code.addStatement("if ($L$N == null) writer.nullValue()", "$", param.getCallableName());
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code.beginControlFlow("else");
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Adapters.generateWrite(param, spec, code, typeVariables, otherAdapters, message, () -> code.add("$L$N", "$", param.getCallableName()));
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code.endControlFlow();
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code.endControlFlow();
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}
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}
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code.addStatement("writer.endObject()");
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spec.addMethod(extension(MethodSpec.methodBuilder("serialize"), self.getTypeName())
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.addModifiers(Modifier.PUBLIC, Modifier.STATIC)
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.addTypeVariable(TypeVariableName.get("TEx", Exception.class))
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.addTypeVariable(TypeVariableName.get("Writer", ParameterizedTypeName.get(Cl.SERIALIZE_WRITER, TypeVariableName.get("TEx"), TypeVariableName.get("Writer"))))
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.addParameter(TypeVariableName.get("Writer"), "writer")
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.addException(TypeVariableName.get("TEx"))
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.addException(Cl.MALFORMED_DATA_EXCEPTION)
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.addCode(code.build())
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.build());
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}
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// public static T read(JsonReader reader) throws IOException
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{
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CodeBlock.Builder code = CodeBlock.builder();
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code.beginControlFlow("if (reader.peek() == $T.NULL)", Cl.GSON_TOKEN)
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.addStatement("reader.nextNull()")
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.addStatement("return null")
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.endControlFlow();
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boolean isEmpty = true;
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for (Property<?> param : properties.names) {
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if (isIgnored(param) && getAlternative(properties, param) == null) continue;
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isEmpty = false;
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code.addStatement("$T _$N = $L", param.getType(), param.getName(), TypeHelper.getDefaultValue(param.getType()));
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code.addStatement("boolean has_$N = false", param.getName());
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}
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if (isEmpty) {
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code.addStatement("reader.skipValue()");
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} else {
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code.addStatement("reader.beginObject()")
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.beginControlFlow("while (reader.hasNext())")
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.beginControlFlow("switch (reader.nextName())");
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for (Property<?> param : properties.names) {
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if (isIgnored(param) && getAlternative(properties, param) == null) continue;
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code.beginControlFlow("case $S ->", getSerializedName(param));
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if (param.getType().getKind().isPrimitive()) {
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code.add("_$N = ", param.getName());
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Adapters.generateRead(param, spec, code, typeVariables, otherAdapters, message);
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code.add(";\n");
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} else {
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code.beginControlFlow("if (reader.peek() == $T.NULL)", Cl.GSON_TOKEN)
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.addStatement("reader.nextNull()")
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.addStatement("_$N = null", param.getName());
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code.unindent().add("} else _$N = ", param.getName());
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Adapters.generateRead(param, spec, code, typeVariables, otherAdapters, message);
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code.add(";\n");
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}
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code.addStatement("has_$N = true", param.getName());
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code.endControlFlow();
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}
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code.add("default -> ")
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.addStatement("reader.skipValue()");
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code.endControlFlow()
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.endControlFlow()
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.addStatement("reader.endObject()");
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}
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code.addStatement("$T result", self.getTypeName());
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ClassName creatorName = ClassName.get((TypeElement) constructionSource.getConstructionElement().getEnclosingElement());
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if (constructionSource instanceof ConstructionSource.Builder builder) {
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StringBuilder args = new StringBuilder();
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for (Property.ConstructorParam param : properties.constructorParams) {
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args.append(", _").append(param.getName());
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}
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code.add("$T builder = ", builder.getBuilderClass());
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if (constructionSource.isConstructor()) {
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code.add("new $T($L)", builder.getBuilderClass(), !args.isEmpty() ? args.substring(2) : "");
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} else {
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code.add("$T.$N($L)", creatorName, self.classElement().getSimpleName(), !args.isEmpty() ? args.substring(2) : "");
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}
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code.add(";\n");
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for (Property.Setter param : properties.builderParams) {
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if (isIgnored(param)) continue;
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code.addStatement("if (has_$N) builder.$N(_$N)", param.getName(), param.getCallableName(), param.getName());
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}
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code.addStatement("result = builder.$N()", builder.getBuildMethod().getSimpleName());
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} else {
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StringBuilder args = new StringBuilder();
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for (Property.Param param : properties.params) {
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args.append(", _").append(param.getName());
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}
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if (constructionSource.isConstructor()) {
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code.addStatement("result = new $T($L)", self.getTypeName(), !args.isEmpty() ? args.substring(2) : "");
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} else {
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code.addStatement("result = $T.$N($L)", creatorName, constructionSource.getConstructionElement().getSimpleName(), !args.isEmpty() ? args.substring(2) : "");
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}
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}
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for (Property.Setter setter : properties.setters) {
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if (isIgnored(setter)) continue;
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code.addStatement("if (has_$N) result.$N(_$N)", setter.getName(), setter.getCallableName(), setter.getName());
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}
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for (Property.Field field : properties.fields) {
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if (Properties.containsName(properties.setters, field)) continue;
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if (Properties.containsName(properties.params, field)) continue;
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if (isIgnored(field)) continue;
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code.addStatement("if (has_$N) result.$N = _$N", field.getName(), field.getCallableName(), field.getName());
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}
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code.addStatement("return result");
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spec.addMethod(extension(MethodSpec.methodBuilder("deserialize"))
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.addModifiers(Modifier.PUBLIC, Modifier.STATIC)
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.returns(self.getTypeName())
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.addTypeVariable(TypeVariableName.get("TEx", Exception.class))
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.addTypeVariable(TypeVariableName.get("Reader", ParameterizedTypeName.get(Cl.SERIALIZE_READER, TypeVariableName.get("TEx"), TypeVariableName.get("Reader"))))
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.addParameter(TypeVariableName.get("Reader"), "reader")
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.addException(TypeVariableName.get("TEx"))
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.addException(Cl.MALFORMED_DATA_EXCEPTION)
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.addCode(code.build())
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.build());
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}
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}
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}
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