extractor

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Scala alternative cases match syntax with different type of extracted value

object NoSense { def main(args: Array[String]) { val value = \"true\" match { case value @ (IntValue(_) | BooleanValue(_)) => value[详细]

2023-03-29 13:20 分类：问答
Difference between home made extractor and case class extractor

According to the scala specification, the extractor built by case classes is the following (scala specification §5.3.2):[详细]

2023-03-27 04:30 分类：问答
Replacing case class inheritance with extractors preserving exhaustiveness checks in Scala

I have a simple class hierarchy that represents a graph-like structure with several distinct types of vertexes implemented using case classes:[详细]

2023-03-12 08:12 分类：问答
Fixing a match clause warning by getting rid of a type parameter

i want to implement the following exhaustive match, but i can\'t figure out to remove the type parameter and thus the warning that it is erased:[详细]

2023-03-10 16:27 分类：问答
xpath Query for xpath extractor of Jmeter

Can someone please provide me the xml query for retrieving the value of sessionId from the below response:[详细]

2023-03-10 03:51 分类：问答
Is there a more functional way, than using custom case statements, to write this in Ruby?

Imagine the following code: class SimpleLetter def values (\"a\" .. \"z\").to_a end def ===(other) values.include?(other)[详细]

2023-03-08 06:50 分类：问答
Scala, partial functions

Is there any way to create a PartialFunction except th开发者_Python百科rough the case statement?[详细]

2023-02-25 02:33 分类：问答
Understanding pattern matching on lists

I\'ve been playing around with Extractors lately and was wondering how the List extractors work especially this:[详细]

2023-02-14 03:48 分类：问答
Scala 2.8.0.RC2 compiler issue on pattern matching statement?

Why does the following module not compile on Scala 2.8.RC[1,2]? object Test { import util.matching.Regex._[详细]

2022-12-31 04:41 分类：问答
Scala: Pattern matching when one of two items meets some condition

I\'m often writing code that compares two objects and produces a value based on whether they are the same, or different, based on how they are different.[详细]

2022-12-16 12:36 分类：问答