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Generate types and functions with their members

This commit is contained in:
Lonami Exo 2018-07-23 17:29:44 +02:00
parent e30e005d09
commit b82639cf0d
6 changed files with 174 additions and 10 deletions
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97
src/main/java/io/github/lonamiwebs/overgram/generator/Generator.java
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@ -1,18 +1,19 @@
package io.github.lonamiwebs.overgram.generator;
import io.github.lonamiwebs.overgram.parser.TLArg;
import io.github.lonamiwebs.overgram.parser.TLObject;
import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.*;
public class Generator {
public static void generateJava(
final List<TLObject> types, final List<TLObject> functions,
final File abstractsFile, final File typesFile, final File functionsFile) throws IOException {
makeParents(abstractsFile, typesFile, functionsFile);
try (final Writer writer = new BufferedWriter(new FileWriter(abstractsFile))) {
writeAbstract(writer, types);
}
try (final Writer writer = new BufferedWriter(new FileWriter(typesFile))) {
writeCode(writer, "Types", "TLObject", types);
}
@ -21,34 +22,86 @@ public class Generator {
}
}
private static void writeAbstract(final Writer writer, final List<TLObject> objects) throws IOException {
writer.write("package io.github.lonamiwebs.overgram.tl;\n");
writer.write("@SuppressWarnings(\"unused\")\n");
writer.write("public class Abstract {\n");
for (final Map.Entry<String, List<String>> nsNames : stringsByNamespace(uniqueTypes(objects)).entrySet()) {
if (!nsNames.getKey().isEmpty()) {
writer.write("public static class ");
writer.write(nsNames.getKey());
writer.write(" {\n");
}
for (final String name : nsNames.getValue()) {
writer.write("public static abstract class ");
writer.write(TLObject.toCamelCase(name));
writer.write(" extends TLObject {}\n");
}
if (!nsNames.getKey().isEmpty()) {
writer.write("}\n");
}
}
writer.write("}\n");
}
private static void writeCode(
final Writer writer, final String className, final String extendsName,
final List<TLObject> objects) throws IOException {
writer.write("package io.github.lonamiwebs.overgram.tl;\n");
writer.write("import io.github.lonamiwebs.overgram.utils.BinaryReader;\n");
writer.write("import io.github.lonamiwebs.overgram.utils.BinaryWriter;\n");
writer.write("import java.util.List;\n");
writer.write("@SuppressWarnings(\"unused\")\n");
writer.write("public class ");
writer.write(className);
writer.write(" {\n");
for (Map.Entry<String, List<TLObject>> nsObjects : byNamespace(objects).entrySet()) {
for (final Map.Entry<String, List<TLObject>> nsObjects : byNamespace(objects).entrySet()) {
if (!nsObjects.getKey().isEmpty()) {
writer.write("public static class ");
writer.write(TLObject.toCamelCase(nsObjects.getKey()));
writer.write(nsObjects.getKey());
writer.write(" {\n");
}
for (TLObject object : nsObjects.getValue()) {
for (final TLObject object : nsObjects.getValue()) {
writer.write("public static class ");
writer.write(TLObject.toCamelCase(object.name));
writer.write(" extends ");
writer.write(extendsName);
writer.write(" {\n");
int n = 0;
for (TLArg arg : object.args) {
if (arg.flags) {
continue;
}
writer.write("private ");
writer.write(arg.javaType());
writer.write(" var" + n);
++n;
writer.write(";\n");
}
writer.write("public ");
writer.write(TLObject.toCamelCase(object.name));
writer.write("() {}\n");
// Use the builder pattern because Java is stupid and has no optional named arguments.
// Objects will be created with nothing set and the arguments set with .argument(value).
// TODO
writer.write("public void serialize(final BinaryWriter writer) {}\n");
writer.write("public void deserialize(final BinaryReader reader) {}\n");
writer.write("}\n");
}
if (!nsObjects.getKey().isEmpty()) {
writer.write("}\n");
}
}
writer.write("}\n");
}
private static Map<String, List<TLObject>> byNamespace(final List<TLObject> objects) {
private static Map<String, List<TLObject>> byNamespace(final Iterable<TLObject> objects) {
final Map<String, List<TLObject>> result = new HashMap<>();
for (final TLObject object : objects) {
result.computeIfAbsent(object.namespace, k -> new ArrayList<>()).add(object);
@ -56,6 +109,34 @@ public class Generator {
return result;
}
private static Map<String, List<String>> stringsByNamespace(final Iterable<String> strings) {
final Map<String, List<String>> result = new HashMap<>();
String[] tmp;
String namespace;
String name;
for (final String string : strings) {
tmp = string.split("\\.");
if (tmp.length == 1) {
namespace = "";
name = tmp[0];
} else {
namespace = tmp[0];
name = tmp[1];
}
result.computeIfAbsent(namespace, k -> new ArrayList<>()).add(name);
}
return result;
}
private static Set<String> uniqueTypes(final List<TLObject> objects) {
final Set<String> result = new HashSet<>();
for (final TLObject object : objects) {
result.add(object.type);
}
return result;
}
private static void makeParents(final File... files) throws IOException {
for (File file : files) {
file = file.getAbsoluteFile().getParentFile();

67
src/main/java/io/github/lonamiwebs/overgram/parser/TLArg.java
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@ -43,6 +43,73 @@ public class TLArg {
return new TLArg(tmp[0], types, flags, flag);
}
public String javaType() {
final StringBuilder builder = new StringBuilder();
boolean nested = false;
for (final String type : types) {
switch (type) {
case "vector":
case "Vector":
builder.append("List");
break;
case "int":
if (flag == null && !nested) {
builder.append("int");
} else {
builder.append("Integer");
}
break;
case "long":
// TODO handle int128 and int256 properly
case "int128":
case "int256":
if (flag == null && !nested) {
builder.append("long");
} else {
builder.append("Long");
}
break;
case "double":
if (flag == null && !nested) {
builder.append("double");
} else {
builder.append("Double");
}
break;
case "Bool":
if (flag == null && !nested) {
builder.append("boolean");
} else {
builder.append("Boolean");
}
break;
case "true":
builder.append("boolean");
break;
case "string":
builder.append("String");
break;
case "bytes":
builder.append("byte[]");
break;
default:
builder.append("Abstract.");
builder.append(TLObject.toCamelCase(type));
break;
}
builder.append('<');
nested = true;
}
builder.setLength(builder.length() - 1);
for (int i = 1; i < types.size(); ++i) {
builder.append('>');
}
return builder.toString();
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();

5
src/main/java/io/github/lonamiwebs/overgram/parser/TLObject.java
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@ -29,7 +29,10 @@ public class TLObject {
}
public static String toCamelCase(final String string) {
return string.substring(0, 1).toUpperCase() + string.substring(1);
final int dot = string.lastIndexOf(".");
return string.substring(0, dot + 1)
+ string.substring(dot + 1, dot + 2).toUpperCase()
+ string.substring(dot + 2);
}
public static TLObject fromString(String string) {

6
src/main/java/io/github/lonamiwebs/overgram/tl/TLObject.java
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@ -1,5 +1,9 @@
package io.github.lonamiwebs.overgram.tl;
public abstract class TLObject {
import io.github.lonamiwebs.overgram.utils.BinaryReader;
import io.github.lonamiwebs.overgram.utils.BinaryWriter;
public abstract class TLObject {
public abstract void serialize(final BinaryWriter writer);
public abstract void deserialize(final BinaryReader reader);
}

4
src/main/java/io/github/lonamiwebs/overgram/utils/BinaryReader.java Normal file
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@ -0,0 +1,4 @@
package io.github.lonamiwebs.overgram.utils;
public class BinaryReader {
}

5
src/main/java/io/github/lonamiwebs/overgram/utils/BinaryWriter.java Normal file
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@ -0,0 +1,5 @@
package io.github.lonamiwebs.overgram.utils;
public class BinaryWriter {
}