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Scala Stack类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Scala中collection.mutable.Stack的典型用法代码示例。如果您正苦于以下问题:Scala Stack类的具体用法?Scala Stack怎么用?Scala Stack使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



在下文中一共展示了Stack类的16个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Scala代码示例。

示例1: TestBuiltins

//设置package包名称以及导入依赖的类
package interpreter

import java.nio.file.{Files, Paths}

import main.scala.interpreter._

import collection.mutable.Stack
import collection.JavaConversions._
import TestHelpers._
import org.scalatest.{BeforeAndAfter, BeforeAndAfterAll, FunSuite}

class TestBuiltins extends FunSuite with BeforeAndAfterAll with BeforeAndAfter {
  val baseDir = "src/test/resources/"
  val basePath = Paths.get(baseDir)

  def provideFile(name: String, content: String) = {
    val path = basePath.resolve(name)
    Files.createFile(path)
    Files.write(path, content.map(_.toByte).toArray)
  }

  override def beforeAll() = {
    Files.createDirectories(basePath)
  }

  override def afterAll() = {
    for(file <- Files.newDirectoryStream(basePath))
      Files.deleteIfExists(file)
    Files.deleteIfExists(basePath)
  }

  after {
    State.files.clear
    State.files.push(StdInReader)
  }

  test("Input must close files after using them") {
    provideFile("empty.tn", "")
    giveLine(" ")
    leavesStack(TnList(Input))(baseDir + "empty.tn")()
    Parser.parseNext()
    Parser.parseNext()
    assert(State.files === Stack(DummyFile(" "), StdInReader))
  }

  test("Input should make the parser parse given file") {
    provideFile("test1.tn", "[]null?")
    leavesStack(TnList(Input, Pull, Pop, Uncons, Pop, Pull, Pop, Uncons, Pop))(baseDir + "test1.tn")(IsEmpty, NullList)
  }

  test("Output should allow writing to a file") {
    val path = baseDir + "testtemp.txt"
    leavesStack(TnList(Output, "testing", State.table.map("print"), I))(path)()
    assert(Files.readAllBytes(Paths.get(path)).map(_.toChar).mkString("") === "testing")
    Files.delete(Paths.get(path))
  }
} 
开发者ID:MechaMagpie,项目名称:tn,代码行数:58,代码来源:TestBuiltins.scala


示例2: TestHelpers

//设置package包名称以及导入依赖的类
package interpreter
import main.scala.interpreter._
import org.scalatest.Assertions._
import collection.mutable.Stack

object TestHelpers {

  def leavesString(fun: TnList*)(before: TnObj*)(after: TnList): Unit = {
    val stk = Stack[TnObj](before:_*)
    fun.foreach(_.getList.foreach(_(stk)))
    assert(stk.pop.toString === after.toString)
  }

  def leavesStack(fun: TnList*)(before: TnObj*)(after: TnObj*): Unit = {
    val stk = Stack(before:_*)
    fun.foreach(_.eval(stk))
    assert(stk === Stack(after:_*))
  }

  implicit class withDirectEval(ls: TnList) {
    def eval(stk: Stack[TnObj]) = ls.getList.foreach(_(stk))
  }

  case class DummyFile(str: String) extends InputQueue {
    for(chr <- str) queue += chr
    override def block(): Unit = ???
    override def finished(): Boolean = throw new IllegalStateException()
  }

  def giveLine(str: String) = State.files.push(DummyFile(str));

  def testLine(str: String)(implicit stack: Stack[TnObj]) = {
    giveLine(str)
    try {
      while(true) Parser.parseNext().get.eval(stack)
    } catch {
      case _: Throwable => {}
    }
  }
} 
开发者ID:MechaMagpie,项目名称:tn,代码行数:41,代码来源:TestHelpers.scala


示例3: ExampleSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._

class ExampleSpec extends FlatSpec with Matchers {

  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
    a [NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }

  "An empty Set" should "have size 0" in {
    assert(Set.empty.isEmpty)
  }

  it should "produce NoSuchElementException when head is invoked" in {
    intercept[NoSuchElementException] {
      Set.empty.head
    }
  }
} 
开发者ID:namelos,项目名称:play-slick-boilerplate,代码行数:31,代码来源:App.scala


示例4: FirstTapaSpec

//设置package包名称以及导入依赖的类
import org.scalatest._
import collection.mutable.Stack

// source: http://www.scalatest.org/quick_start

class FirstTapaSpec extends FlatSpec with Matchers {

  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
    a [NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }

  // assertions example
  "Assertions" should "be used" in {
    assert(1 == 1)
    assert(Some(2).isDefined)
    //assert(Some(2).isEmpty)
  }
} 
开发者ID:MalagaScala,项目名称:scala-tapas,代码行数:30,代码来源:FirstTapaSpec.scala


示例5: Path

//设置package包名称以及导入依赖的类
package game_mechanics.path

import collection.mutable.Stack

class Path {
  
  def at(i: Int): Waypoint = {
    return waypoints.apply(i)
  }
  def length(): Int = {
    return waypoints.length
  }
  def last(): Waypoint = {
    return waypoints.last
  }

  def pop(): Waypoint = {
    return waypoints.pop
  }

  def head(): Waypoint = {
    return waypoints.head
  }

  def apply(i: Int): Waypoint = {
    return waypoints.apply(i)
  }

  def push(wp: Waypoint): Unit = {
    waypoints.push(wp)
  }

  def pushAll(p: Path): Unit = {
      waypoints.pushAll(p.waypoints)
  }

  def takeRight(i: Int): Stack[Waypoint] =
    return this.waypoints.takeRight(i)

  def reverse(): Path = {
    val npath = new Path()
    npath.waypoints.pushAll( this.waypoints)
    return npath
  }

  def exists(p:(Waypoint) => Boolean) : Boolean = {
      this.waypoints.exists(p)
  }

  override def toString() : String = {
      this.waypoints.toString
  }

  def isEmpty(): Boolean = {
      return waypoints.isEmpty
  }

} 
开发者ID:bunny-defense,项目名称:bunny_defense,代码行数:59,代码来源:path.scala


示例6: ExampleSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._

class ExampleSpec extends FlatSpec with Matchers {

  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
//    emptyStack.push(5)
    a [NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }
} 
开发者ID:Mooooony,项目名称:predi,代码行数:22,代码来源:ExampleSpec.scala


示例7: ExampleSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._

class ExampleSpec extends FlatSpec with Matchers {
  "A Stack" should "pop values in last-in-first-out order" in {
     val stack = new Stack[Int]
     stack.push(1)
     stack.push(2)
     stack.pop() should be (2)
     stack.pop() should be (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
    a [NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    } 
  }
} 
开发者ID:jasonzou,项目名称:marc4scala,代码行数:20,代码来源:ExampleSpec.scala


示例8: ExampleSpec

//设置package包名称以及导入依赖的类
package com.cds.learn

import collection.mutable.Stack
import org.scalatest._

import scala.collection.mutable



class ExampleSpec extends FlatSpec with Matchers {

  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new mutable.Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be(2)
    stack.pop() should be(1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new mutable.Stack[Int]
    a[NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }
} 
开发者ID:anancds,项目名称:scala-project,代码行数:27,代码来源:ExampleSpec.scala


示例9: CategorySpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatestplus.play._

class CategorySpec extends PlaySpec {

  "A Stack" must {
    "pop values in last-in-first-out order" in {
      val stack = new Stack[Int]
      stack.push(1)
      stack.push(2)
      stack.pop() mustBe 2
      stack.pop() mustBe 1
    }
    "throw NoSuchElementException if an empty stack is popped" in {
      val emptyStack = new Stack[Int]
      a [NoSuchElementException] must be thrownBy {
        emptyStack.pop()
      }
    }
  }
} 
开发者ID:jordancoded1,项目名称:mechanicfm-reactivemongo-api,代码行数:22,代码来源:CategorySpec.scala


示例10: AppSpec

//设置package包名称以及导入依赖的类
package churchscreen.app

import collection.mutable.Stack

import org.scalatest.junit.JUnitRunner
import org.junit.runner.RunWith
import org.scalatest.FlatSpec
import org.scalatest.junit.ShouldMatchersForJUnit

@RunWith(classOf[JUnitRunner])
class AppSpec extends FlatSpec with ShouldMatchersForJUnit {

	behavior of "A Stack"

  it should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should equal (2)
    stack.pop() should equal (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[String]
    evaluating { emptyStack.pop() } should produce [NoSuchElementException]
  }
} 
开发者ID:ldeck,项目名称:churchscreen,代码行数:28,代码来源:AppTest.scala


示例11: ExampleSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._

class ExampleSpec extends FlatSpec with Matchers {

  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
    a [NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }
} 
开发者ID:mat-hek,项目名称:akkaScalaClientServer,代码行数:21,代码来源:ExampleSpec.scala


示例12: ExampleSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._

class ExampleSpec extends FlatSpec with Matchers {

  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }

  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]

    emptyStack.pop()

  }
} 
开发者ID:rrramiro,项目名称:sbt-linux-notifications,代码行数:21,代码来源:ExampleSpec.scala


示例13: ExampleSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest.{Matchers,FlatSpec}

class ExampleSpec extends FlatSpec with Matchers {
  "A Stack" should "pop values in last-in-first-out order" in {
    val stack = new Stack[Int]
    stack.push(1)
    stack.push(2)
    stack.pop() should be (2)
    stack.pop() should be (1)
  }
  it should "throw NoSuchElementException if an empty stack is popped" in {
    val emptyStack = new Stack[Int]
    a[NoSuchElementException] should be thrownBy {
      emptyStack.pop()
    }
  }
} 
开发者ID:bijancn,项目名称:furry-chainsaw,代码行数:19,代码来源:ExampleSpec.scala


示例14: FunctionSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._
import interpreter.ForthInterpreter

class FunctionSpec extends FlatSpec with Matchers {
    "Functions" should "define and execute correctly" in {
        var forth = new ForthInterpreter(List("defn", "addone", "1", "add", "enddef", "6"))
        forth.execute()
        // Function shouldn't be called
        assert(forth.getStackState() == List(6))
        
        forth = new ForthInterpreter(List("defn", "addone", "1", "add", "enddef", "6", "addone"))
        forth.execute()
        assert(forth.getStackState() == List(7))

    }
} 
开发者ID:sb-,项目名称:ScalaForth,代码行数:18,代码来源:FunctionTest.scala


示例15: ArithmeticSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._
import interpreter.ForthInterpreter

class ArithmeticSpec extends FlatSpec with Matchers {

    "A ForthInterpreter" should "add two numbers correctly" in {
        val forth = new ForthInterpreter(List("1", "2", "add"))
        forth.execute()
        assert(forth.getStackState() == List(3))
    }

    it should "interpret negative numbers correctly" in {
        val forth = new ForthInterpreter(List("5", "-10", "add"))
        forth.execute()
        assert(forth.getStackState() == List(-5))
    }

    it should "subtract two numbers correctly" in {
        val forth = new ForthInterpreter(List("5", "4", "sub"))
        forth.execute()
        assert(forth.getStackState() == List(1))
    }

    it should "do integer division correctly" in {
        var forth = new ForthInterpreter(List("4", "2", "div"))
        forth.execute()
        assert(forth.getStackState() == List(2))

        forth = new ForthInterpreter(List("4", "3", "div"))
        forth.execute()
        assert(forth.getStackState() == List(1))
    }

    it should "multiply correctly" in {
        val forth = new ForthInterpreter(List("5", "3", "mul"))
        forth.execute()
        assert(forth.getStackState() == List(15))
    }

    it should "do remainder correctly" in {
        var forth = new ForthInterpreter(List("4", "2", "mod"))
        forth.execute()
        assert(forth.getStackState() == List(0))

        forth = new ForthInterpreter(List("5", "3", "mod"))
        forth.execute()
        assert(forth.getStackState() == List(2))
    }

} 
开发者ID:sb-,项目名称:ScalaForth,代码行数:52,代码来源:ArithmeticTest.scala


示例16: ForthSpec

//设置package包名称以及导入依赖的类
import collection.mutable.Stack
import org.scalatest._
import interpreter.ForthInterpreter
class ForthSpec extends FlatSpec with Matchers {

    "Stack manipulations" should "initialize without crashing" in {
        val forth = new ForthInterpreter(List("dup", "drop"))
    }

    it should "add three numbers to the stack" in {
        val forth = new ForthInterpreter(List("1", "2", "3"))
        forth.execute()
        assert(forth.getStackState() == List(3, 2, 1))
    }

    it should "duplicate the top of the stack" in {
        val forth = new ForthInterpreter(List("1", "2", "3", "dup"))
        forth.execute()
        assert(forth.getStackState() == List(3, 3, 2, 1))
    }

    it should "drop the top of the stack" in {
        val forth = new ForthInterpreter(List("1", "2", "3", "drop"))
        forth.execute()
        assert(forth.getStackState() == List(2, 1))
    }

    it should "correctly reorder with the swap command" in {
        val forth = new ForthInterpreter(List("1", "2", "3", "swap"))
        forth.execute()
        assert(forth.getStackState() == List(2, 3, 1))
    }

    it should "correctly duplicate the 2nd with the over command" in {
        val forth = new ForthInterpreter(List("1", "2", "3", "over"))
        forth.execute()
        assert(forth.getStackState() == List(2, 3, 2, 1))
    }

    it should "correctly reorder the top 3 with the swap command" in {
        val forth = new ForthInterpreter(List("99", "1", "2", "3", "rot"))
        forth.execute()
        assert(forth.getStackState() == List(1, 3, 2, 99))
    }

} 
开发者ID:sb-,项目名称:ScalaForth,代码行数:47,代码来源:ForthTest.scala



注:本文中的collection.mutable.Stack类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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