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/*
* Copyright 2010-2015 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.kotlin.js.translate.intrinsic.functions.factories
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.js.backend.ast.JsExpression
import org.jetbrains.kotlin.js.patterns.PatternBuilder.pattern
import org.jetbrains.kotlin.js.translate.context.TranslationContext
import org.jetbrains.kotlin.js.translate.intrinsic.functions.basic.FunctionIntrinsicWithReceiverComputed
import org.jetbrains.kotlin.js.translate.utils.JsAstUtils.*
import org.jetbrains.kotlin.utils.identity
import java.util.function.Predicate
object NumberAndCharConversionFIF : CompositeFIF() {
val USE_AS_IS: Predicate = pattern("Int.toInt|toFloat|toDouble")
.or(pattern("Short.toShort|toInt|toFloat|toDouble"))
.or(pattern("Byte.toByte|toShort|toInt|toFloat|toDouble"))
.or(pattern("Float|Double.toFloat|toDouble"))
.or(pattern("Long.toLong"))
.or(pattern("Char.toChar"))
private val convertOperations: Map =
mapOf(
"Float|Double.toInt" to ConversionUnaryIntrinsic(::toInt32),
"Int|Float|Double.toShort" to ConversionUnaryIntrinsic(::toShort),
"Short|Int|Float|Double.toByte" to ConversionUnaryIntrinsic(::toByte),
"Int|Short|Byte.toLong" to ConversionUnaryIntrinsic(::longFromInt),
"Float|Double.toLong" to ConversionUnaryIntrinsic(::longFromNumber),
"Char.toDouble|toFloat|toInt" to ConversionUnaryIntrinsic(::charToInt),
"Char.toShort" to ConversionUnaryIntrinsic { toShort(charToInt(it)) },
"Char.toByte" to ConversionUnaryIntrinsic { toByte(charToInt(it)) },
"Char.toLong" to ConversionUnaryIntrinsic { longFromInt(charToInt(it)) },
"Number.toInt" to ConversionUnaryIntrinsic { invokeKotlinFunction("numberToInt", it) },
"Number.toShort" to ConversionUnaryIntrinsic { invokeKotlinFunction("numberToShort", it) },
"Number.toByte" to ConversionUnaryIntrinsic { invokeKotlinFunction("numberToByte", it) },
"Number.toChar" to ConversionUnaryIntrinsic { invokeKotlinFunction("numberToChar", it) },
"Number.toFloat|toDouble" to ConversionUnaryIntrinsic { invokeKotlinFunction("numberToDouble", it) },
"Number.toLong" to ConversionUnaryIntrinsic { invokeKotlinFunction("numberToLong", it) },
"Int|Short|Byte|Float|Double.toChar" to ConversionUnaryIntrinsic(::toChar),
"Long.toFloat|toDouble" to ConversionUnaryIntrinsic { invokeMethod(it, "toNumber") },
"Long.toInt" to ConversionUnaryIntrinsic { invokeMethod(it, "toInt") },
"Long.toShort" to ConversionUnaryIntrinsic { toShort(invokeMethod(it, "toInt")) },
"Long.toByte" to ConversionUnaryIntrinsic { toByte(invokeMethod(it, "toInt")) },
"Long.toChar" to ConversionUnaryIntrinsic { toChar(invokeMethod(it, "toInt")) }
)
class ConversionUnaryIntrinsic(val applyFun: (receiver: JsExpression) -> JsExpression) : FunctionIntrinsicWithReceiverComputed() {
override fun apply(receiver: JsExpression?, arguments: List, context: TranslationContext): JsExpression {
assert(receiver != null)
assert(arguments.isEmpty())
return applyFun(receiver!!)
}
}
init {
add(USE_AS_IS, ConversionUnaryIntrinsic(identity()))
for((stringPattern, intrinsic) in convertOperations) {
add(pattern(stringPattern), intrinsic)
}
}
}
