Ilya Gorbunov
7438d12ad7
Make them depend on bootstrap stdlib. This is to prevent recompiling the entire project when we need just to generate builtins sources.
90 lines
2.6 KiB
Kotlin
90 lines
2.6 KiB
Kotlin
/*
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* Copyright 2010-2015 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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package org.jetbrains.kotlin.generators.builtins.functions
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import org.jetbrains.kotlin.generators.builtins.generateBuiltIns.BuiltInsSourceGenerator
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import java.io.PrintWriter
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val MAX_PARAM_COUNT = 22
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class GenerateFunctions(out: PrintWriter) : BuiltInsSourceGenerator(out) {
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override fun getPackage() = "kotlin.jvm.functions"
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fun generateTypeParameters(i: Int, variance: Boolean) {
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out.print("<")
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for (j in 1..i) {
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if (variance) out.print("in ")
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out.print("P$j, ")
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}
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generateReturnTypeParameter(variance)
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out.print(">")
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}
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fun generateReturnTypeParameter(variance: Boolean) {
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if (variance) out.print("out ")
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out.print("R")
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}
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override fun generateBody() {
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for (i in 0..MAX_PARAM_COUNT) {
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generateDocumentation(i)
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out.print("public interface Function$i")
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generateTypeParameters(i, variance = true)
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generateSuperClass()
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generateFunctionClassBody(i)
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}
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}
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fun generateDocumentation(i: Int) {
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val suffix = if (i == 1) "" else "s"
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out.println("/** A function that takes $i argument${suffix}. */")
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}
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fun generateSuperClass() {
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out.print(" : Function<")
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generateReturnTypeParameter(variance = false)
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out.print(">")
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}
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fun generateFunctionClassBody(i: Int) {
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out.println(" {")
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generateInvokeSignature(i)
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out.println("}")
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}
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fun generateInvokeSignature(i: Int) {
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if (i == 0) {
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out.println(" /** Invokes the function. */")
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}
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else {
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val suffix = if (i == 1) "" else "s"
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out.println(" /** Invokes the function with the specified argument${suffix}. */")
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}
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out.print(" public operator fun invoke(")
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for (j in 1..i) {
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out.print("p$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.println("): R")
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}
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}
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