Rewrite built-in primitive iterators to Kotlin

2013-12-20 21:03:03 +04:00
parent 0e7ccec9d4
commit f9f1065294
10 changed files with 106 additions and 291 deletions
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2010-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.generators.runtime.iterators
+
+import org.jetbrains.jet.generators.runtime.*
+import java.io.PrintWriter
+
+enum class IteratorKind {
+    BYTE
+    CHAR
+    SHORT
+    INT
+    LONG
+    FLOAT
+    DOUBLE
+    BOOLEAN
+
+    val capitalized: String get() = name().toLowerCase().capitalize()
+}
+
+class GenerateIterators(val out: PrintWriter) {
+    fun generate() {
+        generatedBy(out, javaClass.getName())
+        for (kind in IteratorKind.values()) {
+            val s = kind.capitalized
+            out.println("public abstract class ${s}Iterator : Iterator<$s> {")
+            out.println("    override final fun next() = next$s()")
+            out.println()
+            out.println("    public abstract fun next$s(): $s")
+            out.println("}")
+            out.println()
+        }
+    }
+}
+
+fun main(args: Array<String>) {
+    generateRuntimeFile("Iterators.kt") {
+        GenerateIterators(it).generate()
+    }
+}