When I try to execute the first-n-integers extension example:
show noise:first-n-integers 5
I receive an error "ERROR: Expected command. " in the console or in the code tab.
I have mostly copied and pasted the class examples as is, just renaming them and putting them in a different package. I wish the error was a little more descriptive, as I suspect I am making a simple error somewhere.
I'm using 5.0.4 without the JRE and a 1.7.0_45 JRE/JDK on a x64 Windows 7 machine.
My manifest.txt file with fully-qualified class-manager and crlf at the end of the version line--
Manifest-Version: 1.0
Extension-Name: noise
Class-Manager: org.xyz.extensions.NoiseExtension
NetLogo-Extension-API-Version: 5.0 <--there is a crlf here
the jar is in a subfolder with my model file
test/
test.nlogo
noise/
noise.jar
This is my Class-Manager:
package org.xyz.extensions;
import org.nlogo.api.*;
public class NoiseExtension extends DefaultClassManager {
public void load(PrimitiveManager primitiveManager) {
primitiveManager.addPrimitive(
"first-n-integers", new org.xyz.extensions.NoiseGenerator());
}
}
This is the NoiseGenerator file:
package org.xyz.extensions;
import org.nlogo.api.*;
public class NoiseGenerator extends DefaultReporter {
public Syntax getSyntax() {
return Syntax.reporterSyntax(
new int[] {Syntax.NumberType()}, Syntax.ListType());
}
public Object report(Argument args[], Context context) throws ExtensionException {
// create a NetLogo list for the result
LogoListBuilder list = new LogoListBuilder();
int n ;
// use typesafe helper method from
// org.nlogo.api.Argument to access argument
try {
n = args[0].getIntValue();
}
catch(LogoException e) {
throw new ExtensionException( e.getMessage() ) ;
}
if (n < 0) {
// signals a NetLogo runtime error to the modeler
throw new ExtensionException
("input must be positive");
}
// populate the list. note that we use Double objects; NetLogo
// numbers are always Doubles
for (int i = 0; i < n; i++) {
list.add(Double.valueOf(i));
}
return list.toLogoList();
}
}
Thanks for any help.
AJB
This was asked and answered here:
https://groups.google.com/d/msg/netlogo-devel/eIq8drflsc8/7y_Ooh6R0sgJ
The answer was to correct the spelling of getSynax to getSyntax.
Related
public var O_RDONLY: Int32 { get }
When I'm looking at stuff inside Darwin.sys.* or Darwin.POSIX.* for example, a lot of these constants are defined as getters. But how does one see the actual value without evaluating the code?
public var O_RDONLY: Int32 { get }
is what the Swift importer generates from the macro definition
#define O_RDONLY 0x0000 /* open for reading only */
in the <sys/fcntl.h> include file. Although this is a fixed value, known at compile time, the Swift importer does not show the value in the generated Swift interface.
Note also that a macro definition in a C header file may depend on other macros, and on other “variables” such as compiler flags, the processor architecture, etc.
I am not aware of a way to navigate to that C definition from a Swift file, or any other way to show the defined value in a pure Swift project. As a workaround, one can
add a C file to the project,
use the macro in some C function, and
“jump to definition” from there.
I ended up with the following solution:
const fs = require('fs');
const { exec } = require("child_process");
const getterRegEx = /^(.*)public var (.+): (.+) { get }(.*)$/;
const code = String(fs.readFileSync('./generatedSwift.swift'));
const lines = code.split('\n').map((line, i) => {
const arr = getterRegEx.exec(line);
if (arr) {
const [all, prefix, constant, type, suffix] = arr;
return `print("let ${constant}: ${type} = ", ${constant}, separator: "")`;
}
return `print("""\n${line}\n""")`;
});
lines.unshift('import Foundation');
fs.writeFileSync('./regeneratedSwift.swift', lines.join('\n'));
exec('swift ./regeneratedSwift.swift', (err, stdout, stderr) => {
if (err) {
console.error(`exec error: ${err}`);
return;
}
if (stderr) {
console.log(`stderr: ${stderr}`);
return;
}
console.log(`stdout: ${stdout}`);
});
Copy definitions generated by the XCode and save into a file named generatedSwift.swift the run node index.js in the same folder.
The output will contain the Swift code where all
public var Constant: Type { get }
are replaced with
let Constant = Value
and all other lines will remain the same.
I'm trying to make a minimal working example of JUnit5 using Visual Studio code without Maven. The reason is that I'm trying to make a quick demo for 1st year students, and I don't have the time to explain Maven (it will be the subject of a later course).
My VS Code workspace has this structure (I'm on Linux so forward slashes are normal) :
The settings.json file contains:
{
"java.project.referencedLibraries": [
"demojunit/junit-platform-console-standalone-1.8.1.jar"
]
}
The DemoJUnit.java contains:
package demojunit;
import java.util.Scanner;
public class DemoJUnit {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
int integer = -1;
do {
System.out.print("Enter an integer between 1 and 20 : ");
if (keyboard.hasNextInt())
integer = keyboard.nextInt();
keyboard.nextLine();
} while ((integer < 1) || (integer > 20));
keyboard.close();
long result = computeFactorial(integer);
System.out.println("The factorial " + integer + "! gives " + result);
}
public static long computeFactorial(int number) {
if (number < 1)
return -1;
if (number > 20)
return -2;
long factorial = 1;
for (int i = 2; i <= number; i++) {
factorial = factorial * i;
}
return factorial;
}
}
And the DemoJUnitTest.java contains:
package demojunit;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
public class DemoJUnitTest {
#Test
public static void computeFactorial_CleanTest() {
long expected_value = 120;
long real_value = DemoJUnit.computeFactorial(5);
Assertions.assertEquals(expected_value, real_value);
}
#Test public static void computeFactorial_DirtyTest() {
long expected_value = -1;
long real_value = DemoJUnit.computeFactorial(0);
Assertions.assertEquals(expected_value, real_value);
}
}
The settings.json seems to work since the imports and #Test are not marked as errors in VS Code.
As you can see in the folder image, I downloaded the latest JUnit5 jar file, and it works when running from the command line:
However, running from the command line is not convenient, so I installed the "Test Runner for Java" extension.
The problem is that when running tests, something fails and I don't have any error messages, nor any indication what went wrong. I changed the extensions' settings to be verbose but I still get no error messages in the Terminal, the Debug Console, nor anywhere else.
All I get is :
Any idea why the extension fails (and fails to give any indication on why it fails)?
import CtCILibrary.*;
public class RotateMatrix {
public static boolean rotate (int [][]matrix) {
if ( matrix.length == 0 || matrix.length != matrix[0].length) {
return false;
}
int n = matrix.length;
for ( int layer = 0 ; layer < n / 2 ; layer++ ) {
int first = layer;
int last = n - 1 - first;
for ( int i = first ; i < last; i++ ) {
int offset = i - first;
int top = matrix[first][i];
//left-> top
matrix[first][i] = matrix [last-offset][first];
//bottom -> left
matrix[last-offset][first] = matrix [last][last-offset];
//right -> bottom
matrix[last][last-offset]= matrix[i][last];
//top->right
matrix[i][last]=top;
}
}
return true;
}
Hi there, I'm trying to import the CtCI library to solve the problem but there's an error message. And from her GitHub, that was how she imported this class. I know we can import the class from java built-in library. But I'm not sure how import works when trying to import from someone else. Could someone explain it to me?
If you are doing serious programming for a long term app, and by import you refer to libraries/dependencies, I highly recommend you using maven for it.
If you don't use maven yet, you can just add the .jar files from you IDE to your project path, but with maven is way better.
If you mean importing a .java file written by someone else, to use part of it in your code, just put the file at your project path, you probably need to adapt its libraries and imports, and once ready you can just use its methods ans stuff. Just make sure you have tipped at the top of your current file the import sentence of that file.
I have created a VSIX with 2 templates, one is for VS2012 and another is for VS2013.
But if I use the VSIX, both templates are visible for both VS versions in "New Project" window. I want to restrict it. Is there any way?
This is not a great solution, but only one I've found for this problem.
You can register your package to initialize early on in the Visual Studio startup with the following attribute.
[ProvideAutoLoad(UIContextGuids80.NoSolution)]
public sealed YourPackage : Package
Then in your override void Initialize() method you'll want to register a new DTEEvent.
DTEEvents dte_events;
private void RegisterStartupEvents()
{
if(dte == null)
dte = (DTE)GetService(typeof(DTE));
if (dte != null)
{
dte_events = dte.Events.DTEEvents;
dte_events.OnStartupComplete += OnStartupComplete;
}
}
The OnStartupComplete will fire on startup before any templates have been initialized. To remove them from the list for the current VS version, the bundled zip template files that are copied when your VSIX package is installed will have to be deleted. This method could probably be nicer, but you get the idea.
private void OnStartupComplete()
{
dte_events.OnStartupComplete -= OnStartupComplete;
dte_events = null;
var cleanupList = TemplateCleanupByVsVersion[MajorVisualStudioVersion];
foreach (var deleteTemplate in cleanupList)
{
DirectoryInfo localVsDir = new DirectoryInfo(UserLocalDataPath);
// Locate root path of your extension installation directory.
var packageDllFileInfo = localVsDir.GetFiles("MyVsPackage.dll", SearchOption.AllDirectories)[0];
DirectoryInfo extensionDirInfo = packageDllFileInfo.Directory;
if (extensionDirInfo == null)
{
// Failed to locate extension install directory, bail.
return;
}
var files = extensionDirInfo.GetFiles(deleteTemplate + ".zip", SearchOption.AllDirectories);
if (files.Length > 0)
{
File.Delete(files[0].FullName);
}
}
ServiceProvider.GetWritableSettingsStore().SetPackageReady(true);
}
TemplateCleanupByVsVersion is a Dictionart<int,List<string>> that maps Visual Studio Major version with a list of zip file names (without extension) that you don't want showing up in the mapped Visual Studio version. Eg,
public readonly Dictionary<int, List<string>> TemplateCleanupByVsVersion = new Dictionary<int, List<string>>
{
{11,new List<string> { "MyTemplate1.csharp", "MyTemplate2.csharp", "MyTemplate3.csharp" } },
{12,new List<string> { "MyTemplate1.csharp" }},
{14,new List<string>()}
};
MajorVisualStudioVersion comes from parsing dte.Version. eg,
public int MajorVisualStudioVersion => int.Parse(dte.Version.Substring(0, 2));
The result being specific Visual Studio versions can remove any templates from your VSIX that don't work well. Hope that helps.
is there any way to read the eclipse problem view programatically in eclipse plugin.
I want to fetch data from the following screen-
Yes: Ask the workbench for all Markers of type IMarker.PROBLEM. The documentation contains a code snippet for this:
IMarker[] problems = null;
int depth = IResource.DEPTH_INFINITE;
try {
problems = resource.findMarkers(IMarker.PROBLEM, true, depth);
} catch (CoreException e) {
// something went wrong
}
To get the workspace root, use ResourcesPlugin.getWorkspace().getRoot();
The file MarkerTypesModel.java contains this code:
private String getWellKnownLabel(String type) {
if (type.equals(IMarker.PROBLEM)) {
return "Problem";//$NON-NLS-1$
}
if (type.equals(IMarker.TASK)) {
return "Task";//$NON-NLS-1$
}
if (type.equals("org.eclipse.jdt.core.problem")) { //$NON-NLS-1$
return "Java Problem";//$NON-NLS-1$
}
return type;
}
As you can see, it compares the type with a fixed string to produce Java Problem (and the NON_NLS-Comments are wrong, too).