Examples of org.erlide.engine.model.erlang.IErlModule

org.erlide.engine.model.erlang.IErlModule
Represents an entire Erlang compilation unit (.erl or .hrl source file). Compilation unit elements need to be opened before they can be navigated or manipulated. The children are of type IErlAttribute, and IErlFunction, and appear in the order in which they are declared in the source. If a .erl file cannot be parsed, its structure remains unknown. Use IErlElement.isStructureKnown to determine whether this is the case. @noimplement This interface is not intended to be implemented by clients.

    public IErlModule findModuleFromProject(final IErlProject project,
            final String moduleName, final String modulePath,
            final boolean checkExternals, final IErlElementLocator.Scope scope)
            throws ErlModelException {
        if (project != null) {
            final IErlModule module = getModuleFromCacheByNameOrPath(
                    (ErlProject) project, moduleName, modulePath, scope);
            if (module != null && module.isOnSourcePath()) {
                return module;
            }
        }
        final List<IErlModule> allModules = Lists.newArrayList();
        final Set<String> paths = Sets.newHashSet();
        try {
            for (int i = 0; i < 2; ++i) {
                final boolean externalModules = i > 0;
                if (externalModules && !checkExternals) {
                    break;
                }
                if (project != null) {
                    final IErlModule module = tryFindModule(Sets.newHashSet(project),
                            moduleName, modulePath, allModules, paths, externalModules);
                    if (module != null) {
                        return module;
                    }
                }
                if ((scope == Scope.REFERENCED_PROJECTS || scope == Scope.ALL_PROJECTS)
                        && project != null) {
                    final Collection<IErlProject> projects = project
                            .getReferencedProjects();
                    final IErlModule module = tryFindModule(projects, moduleName,
                            modulePath, allModules, paths, externalModules);
                    if (module != null) {
                        return module;
                    }
                }


                if (scope == Scope.ALL_PROJECTS) {
                    final Collection<IErlProject> projects = getErlangProjects();
                    final IErlModule module = tryFindModule(projects, moduleName,
                            modulePath, allModules, paths, externalModules);
                    if (module != null) {
                        return module;
                    }
                }

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    private IErlModule tryFindModule(final Collection<IErlProject> projects,
            final String moduleName, final String modulePath,
            final List<IErlModule> allModules, final Set<String> paths,
            final boolean externalModules) throws ErlModelException {
        IErlModule module;
        for (final IErlProject project : projects) {
            final Collection<IErlModule> modules = Lists.newArrayList();
            final Collection<IErlModule> modulesOrExternals = externalModules ? project
                    .getExternalModules() : project.getModules();
            getAllModulesAux(modulesOrExternals, modules, paths);

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            final IErlElementLocator.Scope scope) throws ErlModelException {
        final IErlElement parent = module.getParent();
        if (parent instanceof IErlFolder) {
            final IErlFolder folder = (IErlFolder) parent;
            folder.open(null);
            final IErlModule include = folder.findInclude(includeName, includePath);
            if (include != null) {
                return include;
            }
        }
        return findIncludeFromProject(ErlangEngine.getInstance().getModelUtilService()

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    }


    @Override
    public void elementChanged(final IErlElement element) {
        if (element instanceof IErlModule) {
            final IErlModule m = (IErlModule) element;
            final IResource r = m.getResource();
            if (r instanceof IFile) {
                doRefresh((IFile) r);
            }
        }
    }

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        // Get the file name.
        final String externalModulePath = memento.getString(TAG_EXTERNAL_MODULE_PATH);
        if (externalModulePath == null) {
            return null;
        }
        IErlModule module;
        try {
            final IErlModel model = ErlangEngine.getInstance().getModel();
            module = ErlangEngine.getInstance().getModelUtilService()
                    .getModuleFromExternalModulePath(model, externalModulePath);
        } catch (final ErlModelException e1) {

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        final Collection<IEditorPart> allErlangEditors = EditorUtility
                .getAllErlangEditors();
        for (final IEditorPart editorPart : allErlangEditors) {
            if (inputElement instanceof IErlElement) {
                final IErlElement element = (IErlElement) inputElement;
                final IErlModule module = ErlangEngine.getInstance()
                        .getModelUtilService().getModule(element);
                final AbstractErlangEditor editor = (AbstractErlangEditor) editorPart;
                if (module.equals(editor.getModule())) {
                    return editorPart;
                }
            }
        }
        final IEditorInput input = getEditorInput(inputElement);

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    private void findExternalCallsTestAux(final LimitTo limitTo, final int nFoundExpected)
            throws CoreException, ErlModelException, OperationCanceledException {
        // given
        // a module a with an exported function f
        // and a module b which calls a:f()
        final IErlModule moduleA = createModule(project, "a.erl",
                "-module(a). -export([f/0]). f() -> ok.");
        final IErlModule moduleB = createModule(project, "b.erl",
                "-module(b). -export([f/0]). f() -> a:f().");
        moduleA.open(null);
        moduleB.open(null);
        // when
        // searching for the call to a:f
        final ErlangSearchPattern ref = new SearchPatternFactory(ErlangEngine
                .getInstance().getModelUtilService()).getSearchPattern(
                SearchFor.FUNCTION, "a", "f", 0, limitTo, moduleA);

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    @Test
    public void findCallAfterRecordRef() throws Exception {
        // given
        // a module a with an exported function f
        // and a module b which calls a:f()
        final IErlModule moduleA = createModule(project, "a.erl",
                "-module(a).\n-export([f/0]).\nf() ->\n    ok.\n");
        final IErlModule moduleB = createModule(project, "b.erl",
                "-module(b).\n-export([f/0]).\nf() ->\n    #a.b,\n    a:f().\n");
        moduleA.open(null);
        moduleB.open(null);
        // when
        // searching for the call to a:f
        final ErlangSearchPattern ref = new SearchPatternFactory(ErlangEngine
                .getInstance().getModelUtilService()).getSearchPattern(
                SearchFor.FUNCTION, "a", "f", 0, LimitTo.REFERENCES, moduleA);

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    @Test
    public void findVariableRef() throws Exception {
        // given
        // a module a with an exported function f
        // and a module b which calls a:f()
        final IErlModule moduleA = createModule(project, "az.erl",
                "-module(az).\n-export([f/1]).\nf(A) ->\n    {A}.\n");
        final IErlModule moduleB = createModule(project, "bz.erl",
                "-module(bz).\n-export([f/0]).\nf(A) ->\n    [A].\n");
        moduleA.open(null);
        moduleB.open(null);
        // when
        // searching for the variable A from module a
        final ErlangSearchPattern pattern = new SearchPatternFactory(ErlangEngine
                .getInstance().getModelUtilService()).getSearchPattern(
                SearchFor.VARIABLE, null, "A", 0, LimitTo.ALL_OCCURRENCES, moduleA);

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            final String filePath = elt.getFilePath();
            if (parent == ErlangEngine.getInstance().getModel() && filePath != null) {
                parent = elt.getParent();
            }
            if (parent instanceof IErlModule) {
                final IErlModule mod = (IErlModule) parent;
                final IResource resource = mod.getCorrespondingResource();
                if (resource != null) {
                    return resource;
                }
            } else {
                return parent;

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