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Added String.toIntOrNull, etc

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#KT-7930
This commit is contained in:
voddan
2016-03-20 19:48:44 +03:00
committed by Ilya Gorbunov
parent fb51d21888
commit 3d050322e0
1 changed files with 56 additions and 0 deletions
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libraries/stdlib/src/kotlin/text/ParsePrimitivesJVM.kt
+56
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@@ -54,3 +54,59 @@ public inline fun String.toFloat(): Float = java.lang.Float.parseFloat(this)
@kotlin.internal.InlineOnly
public inline fun String.toDouble(): Double = java.lang.Double.parseDouble(this)
/**
* Parses the string as a signed [Byte] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
@kotlin.internal.InlineOnly
public inline fun String.toByteOrNull(): Byte? = try {
java.lang.Byte.parseByte(this)
} catch(e: NumberFormatException) { null }
/**
* Parses the string as a [Short] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
@kotlin.internal.InlineOnly
public inline fun String.toShortOrNull(): Short? = try {
java.lang.Short.parseShort(this)
} catch(e: NumberFormatException) { null }
/**
* Parses the string as an [Int] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
@kotlin.internal.InlineOnly
public inline fun String.toIntOrNull(): Int? = try {
java.lang.Integer.parseInt(this)
} catch(e: NumberFormatException) { null }
/**
* Parses the string as a [Long] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
@kotlin.internal.InlineOnly
public inline fun String.toLongOrNull(): Long? = try {
java.lang.Long.parseLong(this)
} catch(e: NumberFormatException) { null }
/**
* Parses the string as a [Float] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
@kotlin.internal.InlineOnly
public inline fun String.toFloatOrNull(): Float? = try {
java.lang.Float.parseFloat(this)
} catch(e: NumberFormatException) { null }
/**
* Parses the string as a [Double] number and returns the result
* or `null` if the string is not a valid representation of a number.
*/
@kotlin.internal.InlineOnly
public inline fun String.toDoubleOrNull(): Double? = try {
java.lang.Double.parseDouble(this)
} catch(e: NumberFormatException) { null }