// Copyright 2021 Code Intelligence GmbH
//
// 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.
@file:JvmName("Utils")

package com.code_intelligence.jazzer.utils

import java.lang.reflect.Executable

val Class<*>.readableDescriptor: String
    get() = when {
        isPrimitive -> {
            when (this) {
                Boolean::class.javaPrimitiveType -> "boolean"
                Byte::class.javaPrimitiveType -> "byte"
                Char::class.javaPrimitiveType -> "char"
                Short::class.javaPrimitiveType -> "short"
                Int::class.javaPrimitiveType -> "int"
                Long::class.javaPrimitiveType -> "long"
                Float::class.javaPrimitiveType -> "float"
                Double::class.javaPrimitiveType -> "double"
                java.lang.Void::class.javaPrimitiveType -> "void"
                else -> throw IllegalStateException("Unknown primitive type: $name")
            }
        }
        isArray -> "${componentType.readableDescriptor}[]"
        java.lang.Object::class.java.isAssignableFrom(this) -> name
        else -> throw IllegalArgumentException("Unknown class type: $name")
    }

// This does not include the return type as the parameter descriptors already uniquely identify the executable.
val Executable.readableDescriptor: String
    get() = parameterTypes.joinToString(separator = ",", prefix = "(", postfix = ")") { parameterType ->
        parameterType.readableDescriptor
    }