Examples with ScopeFunction org.rstudio.studio.client.workbench.views.source.editors.text.ScopeFunction used on opensource projects

Example 1 with ScopeFunction

use of org.rstudio.studio.client.workbench.views.source.editors.text.ScopeFunction in project rstudio by rstudio.

the class CompletionRequester method addFunctionArgumentCompletions.

private void addFunctionArgumentCompletions(String token, ArrayList<QualifiedName> completions) {
    AceEditor editor = (AceEditor) docDisplay_;
    if (editor != null) {
        Position cursorPosition = editor.getSession().getSelection().getCursor();
        CodeModel codeModel = editor.getSession().getMode().getRCodeModel();
        // Try to see if we can find a function name
        TokenCursor cursor = codeModel.getTokenCursor();
        // NOTE: This can fail if the document is empty
        if (!cursor.moveToPosition(cursorPosition))
            return;
        String tokenLower = token.toLowerCase();
        if (cursor.currentValue() == "(" || cursor.findOpeningBracket("(", false)) {
            if (cursor.moveToPreviousToken()) {
                // Check to see if this really is the name of a function
                JsArray<ScopeFunction> functionsInScope = codeModel.getAllFunctionScopes();
                String tokenName = cursor.currentValue();
                for (int i = 0; i < functionsInScope.length(); i++) {
                    ScopeFunction rFunction = functionsInScope.get(i);
                    String fnName = rFunction.getFunctionName();
                    if (tokenName == fnName) {
                        JsArrayString args = rFunction.getFunctionArgs();
                        for (int j = 0; j < args.length(); j++) {
                            String arg = args.get(j);
                            if (arg.toLowerCase().startsWith(tokenLower))
                                completions.add(new QualifiedName(args.get(j) + " = ", fnName, false, RCompletionType.CONTEXT));
                        }
                    }
                }
            }
        }
    }
}

Example 2 with ScopeFunction

use of org.rstudio.studio.client.workbench.views.source.editors.text.ScopeFunction in project rstudio by rstudio.

the class RCompletionManager method goToFunctionDefinition.

public void goToFunctionDefinition() {
    // check for a file-local definition (intra-file navigation -- using
    // the active scope tree)
    AceEditor editor = (AceEditor) docDisplay_;
    if (editor != null) {
        TokenCursor cursor = editor.getSession().getMode().getRCodeModel().getTokenCursor();
        if (cursor.moveToPosition(editor.getCursorPosition(), true)) {
            // token (obstensibly a funciton name)
            if (cursor.isLeftBracket())
                cursor.moveToPreviousToken();
            // navigate (as this isn't the 'full' function name)
            if (cursor.moveToPreviousToken()) {
                if (cursor.isExtractionOperator())
                    return;
                cursor.moveToNextToken();
            }
            // if this is a string, try resolving that string as a file name
            if (cursor.hasType("string")) {
                String tokenValue = cursor.currentValue();
                String path = tokenValue.substring(1, tokenValue.length() - 1);
                FileSystemItem filePath = FileSystemItem.createFile(path);
                // This will show a dialog error if no such file exists; this
                // seems the most appropriate action in such a case.
                fileTypeRegistry_.editFile(filePath);
            }
            String functionName = cursor.currentValue();
            JsArray<ScopeFunction> scopes = editor.getAllFunctionScopes();
            for (int i = 0; i < scopes.length(); i++) {
                ScopeFunction scope = scopes.get(i);
                if (scope.getFunctionName().equals(functionName)) {
                    navigableSourceEditor_.navigateToPosition(SourcePosition.create(scope.getPreamble().getRow(), scope.getPreamble().getColumn()), true);
                    return;
                }
            }
        }
    }
    // intra-file navigation failed -- hit the server and find a definition
    // in the project index
    // determine current line and cursor position
    InputEditorLineWithCursorPosition lineWithPos = InputEditorUtil.getLineWithCursorPosition(input_);
    // delayed progress indicator
    final GlobalProgressDelayer progress = new GlobalProgressDelayer(globalDisplay_, 1000, "Searching for function definition...");
    server_.getObjectDefinition(lineWithPos.getLine(), lineWithPos.getPosition(), new ServerRequestCallback<ObjectDefinition>() {

        @Override
        public void onResponseReceived(ObjectDefinition def) {
            // dismiss progress
            progress.dismiss();
            // if we got a hit
            if (def.getObjectName() != null) {
                // search locally if a function navigator was provided
                if (navigableSourceEditor_ != null) {
                    // try to search for the function locally
                    SourcePosition position = navigableSourceEditor_.findFunctionPositionFromCursor(def.getObjectName());
                    if (position != null) {
                        navigableSourceEditor_.navigateToPosition(position, true);
                        // we're done
                        return;
                    }
                }
                // navigate to the file/loc
                if (def.getObjectType() == FileFunctionDefinition.OBJECT_TYPE) {
                    FileFunctionDefinition fileDef = def.getObjectData().cast();
                    fileTypeRegistry_.editFile(fileDef.getFile(), fileDef.getPosition());
                } else // search path definition
                if (def.getObjectType() == SearchPathFunctionDefinition.OBJECT_TYPE) {
                    SearchPathFunctionDefinition searchDef = def.getObjectData().cast();
                    eventBus_.fireEvent(new CodeBrowserNavigationEvent(searchDef));
                } else // finally, check to see if it's a data frame
                if (def.getObjectType() == DataDefinition.OBJECT_TYPE) {
                    eventBus_.fireEvent(new SendToConsoleEvent("View(" + def.getObjectName() + ")", true, false));
                }
            }
        }

        @Override
        public void onError(ServerError error) {
            progress.dismiss();
            globalDisplay_.showErrorMessage("Error Searching for Function", error.getUserMessage());
        }
    });
}