Andrey Breslav
1361c70f68
+ Indexing of their type parameters is fixed (should match actual positions in the parameter list) The reason to make them classes: * This is how they are actually implemented in the JVM back-end (for performance) This can be reconsidered later, but seems to be a reasonable solution
106 lines
3.6 KiB
Java
106 lines
3.6 KiB
Java
/*
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* Copyright 2000-2012 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.PrintStream;
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/**
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* @author abreslav
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*/
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public class TuplesAndFunctionsGenerator {
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private static int TUPLE_COUNT = 23;
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private static void generateTuples(PrintStream out, int count) {
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generated(out);
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out.println("public class Tuple0() {}");
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for (int i = 1; i < count; i++) {
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out.print("public class Tuple" + i);
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out.print("<");
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for (int j = 1; j <= i; j++) {
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out.print("out T" + j);
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if (j < i) {
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out.print(", ");
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}
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}
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out.print(">");
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out.print("(");
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for (int j = 1; j <= i; j++) {
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out.print("public val _" + j + ": " + "T" + j);
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if (j < i) {
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out.print(", ");
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}
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}
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out.print(") {}");
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out.println();
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}
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}
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private static void generateFunctions(PrintStream out, int count, boolean extension) {
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generated(out);
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for (int i = 0; i < count; i++) {
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out.print("public abstract class " + (extension ? "ExtensionFunction" : "Function") + i);
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out.print("<");
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if (extension) {
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out.print("in T");
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if (count > 0) {
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out.print(", ");
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}
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}
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for (int j = 1; j <= i; j++) {
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out.print("in P" + j);
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out.print(", ");
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}
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out.print("out R> {\n");
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out.print(" public abstract fun " + (extension ? "T." : "") +
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"invoke(");
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for (int j = 1; j <= i; j++) {
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out.print("p" + j + ": " + "P" + j);
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if (j < i) {
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out.print(", ");
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}
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}
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out.print(") : R\n");
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out.println("}");
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}
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}
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private static void generated(PrintStream out) {
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out.println("// Generated by " + TuplesAndFunctionsGenerator.class.getCanonicalName());
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out.println("// NOTE: this code is not loaded for JetStandardLibrary, but its equivalent is manually created in JetStandardClasses");
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out.println();
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out.println("package jet");
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out.println();
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}
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public static void main(String[] args) throws FileNotFoundException {
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File baseDir = new File("compiler/frontend/src/jet.src/");
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assert baseDir.exists() : "Base dir does not exist: " + baseDir.getAbsolutePath();
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PrintStream tuples = new PrintStream(new File(baseDir, "Tuples.jet"));
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generateTuples(tuples, TUPLE_COUNT);
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tuples.close();
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PrintStream functions = new PrintStream(new File(baseDir, "Functions.jet"));
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generateFunctions(functions, TUPLE_COUNT, false);
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functions.close();
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PrintStream extensionFunctions = new PrintStream(new File(baseDir, "ExtensionFunctions.jet"));
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generateFunctions(extensionFunctions, TUPLE_COUNT, true);
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extensionFunctions.close();
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}
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}
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