Example usage for org.eclipse.jdt.internal.codeassist CompletionEngine complete

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.codeassist CompletionEngine complete.

Prototype

public void complete(ICompilationUnit sourceUnit, int completionPosition, int pos, ITypeRoot root) 

Source Link

Document

Ask the engine to compute a completion at the specified position of the given compilation unit.

Usage

From source file:org.eclipse.ajdt.core.javaelements.AJCompilationUnit.java

License:Open Source License

/**
* this method is a copy of {@link Openable#codeComplete(org.eclipse.jdt.internal.compiler.env.ICompilationUnit, org.eclipse.jdt.internal.compiler.env.ICompilationUnit, int, CompletionRequestor, WorkingCopyOwner, ITypeRoot)}
* The only change is that we need to create an {@link ITDAwareNameEnvironment}, not  standard {@link SearchableEnvironment}.
 * //from www .  j  a v  a 2s .co  m
* @param cu
* @param unitToSkip
* @param position
* @param requestor
* @param owner
* @param typeRoot
* @throws JavaModelException
*/
private void internalCodeComplete(org.eclipse.jdt.internal.compiler.env.ICompilationUnit cu,
        org.eclipse.jdt.internal.compiler.env.ICompilationUnit unitToSkip, int position,
        CompletionRequestor requestor, WorkingCopyOwner owner, ITypeRoot typeRoot,
        /* AJDT 1.7 */
        IProgressMonitor monitor) throws JavaModelException {

    if (requestor == null) {
        throw new IllegalArgumentException("Completion requestor cannot be null"); //$NON-NLS-1$
    }
    PerformanceStats performanceStats = CompletionEngine.PERF
            ? PerformanceStats.getStats(JavaModelManager.COMPLETION_PERF, this)
            : null;
    if (performanceStats != null) {
        performanceStats.startRun(new String(cu.getFileName()) + " at " + position); //$NON-NLS-1$
    }
    IBuffer buffer = getBuffer();
    if (buffer == null) {
        return;
    }
    if (position < -1 || position > buffer.getLength()) {
        throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.INDEX_OUT_OF_BOUNDS));
    }
    JavaProject project = (JavaProject) getJavaProject();
    /* AJDT 1.7 */
    ITDAwareNameEnvironment environment = new ITDAwareNameEnvironment(project, owner, monitor);

    environment.setUnitToSkip(unitToSkip);

    // code complete
    /* AJDT 1.7 */
    CompletionEngine engine = new CompletionEngine(environment, requestor, project.getOptions(true), project,
            owner, monitor);
    engine.complete(cu, position, 0, typeRoot);
    if (performanceStats != null) {
        performanceStats.endRun();
    }
    if (NameLookup.VERBOSE) {
        AJLog.log(Thread.currentThread() + " TIME SPENT in NameLoopkup#seekTypesInSourcePackage: " //$NON-NLS-1$
                + environment.nameLookup.timeSpentInSeekTypesInSourcePackage + "ms"); //$NON-NLS-1$
        AJLog.log(Thread.currentThread() + " TIME SPENT in NameLoopkup#seekTypesInBinaryPackage: " //$NON-NLS-1$
                + environment.nameLookup.timeSpentInSeekTypesInBinaryPackage + "ms"); //$NON-NLS-1$
    }

}

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From source file:org.eclipse.ajdt.internal.core.contentassist.ContentAssistProvider.java

License:Open Source License

public boolean doContentAssist(ICompilationUnit cu, ICompilationUnit unitToSkip, int position,
        CompletionRequestor requestor, WorkingCopyOwner owner,
        /* AJDT 1.7 */
        ITypeRoot typeRoot, Openable target, IProgressMonitor monitor) throws Exception {
    JavaProject project = (JavaProject) target.getJavaProject();
    if (!AspectJPlugin.isAJProject(project.getProject())) {
        return false;
    }//w ww  .  j  a  v a  2  s  .  co  m
    if (target instanceof AJCompilationUnit) {
        // already handled by the compilation unit
        return false;
    }
    if (!(target instanceof CompilationUnit)) {
        return false;
    }
    IBuffer buffer = target.getBuffer();
    if (buffer == null) {
        return false;
    }

    if (requestor == null) {
        throw new IllegalArgumentException("Completion requestor cannot be null"); //$NON-NLS-1$
    }

    MockCompilationUnit mcu = new MockCompilationUnit((CompilationUnit) target);
    ProposalRequestorWrapper wrapped = new ProposalRequestorWrapper(requestor, mcu, mcu.insertionTable);
    int transformedPos = mcu.translatePositionToFake(position);
    if (transformedPos < -1 || transformedPos > mcu.getContents().length) {
        throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.INDEX_OUT_OF_BOUNDS));
    }

    /* AJDT 1.7 */
    ITDAwareNameEnvironment environment = new ITDAwareNameEnvironment(project, owner, monitor);
    environment.setUnitToSkip(unitToSkip);

    // code complete
    /* AJDT 1.7 */
    CompletionEngine engine = new CompletionEngine(environment, wrapped, project.getOptions(true), project,
            owner, monitor);
    engine.lookupEnvironment = new ITDAwareLookupEnvironment(engine.lookupEnvironment, environment);
    engine.complete(mcu, transformedPos, 0, typeRoot);

    return true;
}

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