Generate types and functions with their members
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e30e005d09
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@ -1,18 +1,19 @@
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package io.github.lonamiwebs.overgram.generator;
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import io.github.lonamiwebs.overgram.parser.TLArg;
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import io.github.lonamiwebs.overgram.parser.TLObject;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.*;
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public class Generator {
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public static void generateJava(
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final List<TLObject> types, final List<TLObject> functions,
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final File abstractsFile, final File typesFile, final File functionsFile) throws IOException {
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makeParents(abstractsFile, typesFile, functionsFile);
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try (final Writer writer = new BufferedWriter(new FileWriter(abstractsFile))) {
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writeAbstract(writer, types);
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}
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try (final Writer writer = new BufferedWriter(new FileWriter(typesFile))) {
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writeCode(writer, "Types", "TLObject", types);
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}
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@ -21,34 +22,86 @@ public class Generator {
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}
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}
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private static void writeAbstract(final Writer writer, final List<TLObject> objects) throws IOException {
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writer.write("package io.github.lonamiwebs.overgram.tl;\n");
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writer.write("@SuppressWarnings(\"unused\")\n");
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writer.write("public class Abstract {\n");
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for (final Map.Entry<String, List<String>> nsNames : stringsByNamespace(uniqueTypes(objects)).entrySet()) {
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if (!nsNames.getKey().isEmpty()) {
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writer.write("public static class ");
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writer.write(nsNames.getKey());
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writer.write(" {\n");
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}
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for (final String name : nsNames.getValue()) {
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writer.write("public static abstract class ");
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writer.write(TLObject.toCamelCase(name));
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writer.write(" extends TLObject {}\n");
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}
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if (!nsNames.getKey().isEmpty()) {
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writer.write("}\n");
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}
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}
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writer.write("}\n");
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}
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private static void writeCode(
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final Writer writer, final String className, final String extendsName,
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final List<TLObject> objects) throws IOException {
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writer.write("package io.github.lonamiwebs.overgram.tl;\n");
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writer.write("import io.github.lonamiwebs.overgram.utils.BinaryReader;\n");
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writer.write("import io.github.lonamiwebs.overgram.utils.BinaryWriter;\n");
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writer.write("import java.util.List;\n");
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writer.write("@SuppressWarnings(\"unused\")\n");
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writer.write("public class ");
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writer.write(className);
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writer.write(" {\n");
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for (Map.Entry<String, List<TLObject>> nsObjects : byNamespace(objects).entrySet()) {
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for (final Map.Entry<String, List<TLObject>> nsObjects : byNamespace(objects).entrySet()) {
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if (!nsObjects.getKey().isEmpty()) {
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writer.write("public static class ");
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writer.write(TLObject.toCamelCase(nsObjects.getKey()));
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writer.write(nsObjects.getKey());
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writer.write(" {\n");
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}
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for (TLObject object : nsObjects.getValue()) {
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for (final TLObject object : nsObjects.getValue()) {
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writer.write("public static class ");
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writer.write(TLObject.toCamelCase(object.name));
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writer.write(" extends ");
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writer.write(extendsName);
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writer.write(" {\n");
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int n = 0;
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for (TLArg arg : object.args) {
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if (arg.flags) {
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continue;
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}
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writer.write("private ");
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writer.write(arg.javaType());
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writer.write(" var" + n);
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++n;
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writer.write(";\n");
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}
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writer.write("public ");
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writer.write(TLObject.toCamelCase(object.name));
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writer.write("() {}\n");
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// Use the builder pattern because Java is stupid and has no optional named arguments.
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// Objects will be created with nothing set and the arguments set with .argument(value).
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// TODO
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writer.write("public void serialize(final BinaryWriter writer) {}\n");
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writer.write("public void deserialize(final BinaryReader reader) {}\n");
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writer.write("}\n");
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}
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if (!nsObjects.getKey().isEmpty()) {
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writer.write("}\n");
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}
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}
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writer.write("}\n");
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}
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private static Map<String, List<TLObject>> byNamespace(final List<TLObject> objects) {
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private static Map<String, List<TLObject>> byNamespace(final Iterable<TLObject> objects) {
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final Map<String, List<TLObject>> result = new HashMap<>();
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for (final TLObject object : objects) {
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result.computeIfAbsent(object.namespace, k -> new ArrayList<>()).add(object);
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@ -56,6 +109,34 @@ public class Generator {
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return result;
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}
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private static Map<String, List<String>> stringsByNamespace(final Iterable<String> strings) {
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final Map<String, List<String>> result = new HashMap<>();
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String[] tmp;
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String namespace;
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String name;
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for (final String string : strings) {
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tmp = string.split("\\.");
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if (tmp.length == 1) {
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namespace = "";
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name = tmp[0];
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} else {
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namespace = tmp[0];
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name = tmp[1];
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}
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result.computeIfAbsent(namespace, k -> new ArrayList<>()).add(name);
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}
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return result;
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}
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private static Set<String> uniqueTypes(final List<TLObject> objects) {
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final Set<String> result = new HashSet<>();
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for (final TLObject object : objects) {
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result.add(object.type);
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}
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return result;
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}
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private static void makeParents(final File... files) throws IOException {
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for (File file : files) {
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file = file.getAbsoluteFile().getParentFile();
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@ -43,6 +43,73 @@ public class TLArg {
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return new TLArg(tmp[0], types, flags, flag);
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}
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public String javaType() {
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final StringBuilder builder = new StringBuilder();
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boolean nested = false;
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for (final String type : types) {
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switch (type) {
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case "vector":
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case "Vector":
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builder.append("List");
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break;
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case "int":
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if (flag == null && !nested) {
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builder.append("int");
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} else {
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builder.append("Integer");
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}
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break;
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case "long":
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// TODO handle int128 and int256 properly
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case "int128":
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case "int256":
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if (flag == null && !nested) {
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builder.append("long");
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} else {
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builder.append("Long");
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}
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break;
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case "double":
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if (flag == null && !nested) {
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builder.append("double");
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} else {
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builder.append("Double");
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}
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break;
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case "Bool":
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if (flag == null && !nested) {
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builder.append("boolean");
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} else {
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builder.append("Boolean");
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}
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break;
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case "true":
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builder.append("boolean");
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break;
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case "string":
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builder.append("String");
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break;
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case "bytes":
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builder.append("byte[]");
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break;
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default:
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builder.append("Abstract.");
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builder.append(TLObject.toCamelCase(type));
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break;
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}
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builder.append('<');
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nested = true;
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}
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builder.setLength(builder.length() - 1);
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for (int i = 1; i < types.size(); ++i) {
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builder.append('>');
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}
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return builder.toString();
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}
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@Override
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public String toString() {
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final StringBuilder builder = new StringBuilder();
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@ -29,7 +29,10 @@ public class TLObject {
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}
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public static String toCamelCase(final String string) {
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return string.substring(0, 1).toUpperCase() + string.substring(1);
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final int dot = string.lastIndexOf(".");
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return string.substring(0, dot + 1)
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+ string.substring(dot + 1, dot + 2).toUpperCase()
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+ string.substring(dot + 2);
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}
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public static TLObject fromString(String string) {
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@ -1,5 +1,9 @@
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package io.github.lonamiwebs.overgram.tl;
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public abstract class TLObject {
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import io.github.lonamiwebs.overgram.utils.BinaryReader;
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import io.github.lonamiwebs.overgram.utils.BinaryWriter;
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public abstract class TLObject {
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public abstract void serialize(final BinaryWriter writer);
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public abstract void deserialize(final BinaryReader reader);
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}
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@ -0,0 +1,4 @@
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package io.github.lonamiwebs.overgram.utils;
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public class BinaryReader {
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}
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@ -0,0 +1,5 @@
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package io.github.lonamiwebs.overgram.utils;
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public class BinaryWriter {
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}
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