2024 08 04 typeerror on selectiondirection debugging steps library issue null checks workaround - bizkite-co/handterm GitHub Wiki

original file name: Codeium Chat - Ccdr6B8nOTqzlr1CHJQlwJIKRHVofYQA.md summary: The user encountered a TypeError related to the SelectionDirection property being accessed on an undefined object in the adapter.ts file. The conversation discussed steps to debug and potentially resolve the issue, including ensuring proper initialization and error handling, adding debugging information, checking external dependencies, and handling asynchronous operations.

Further, the issue was identified to be within the vim-monaco library and suggestions were provided to add null checks in adapter.ts, ensure proper editor initialization in MonacoEditor.tsx, report the issue to library maintainers, and implement a workaround if needed.

In a subsequent message, it was suggested to check for the existence of window.monaco before accessing SelectionDirection in adapter.ts to prevent the TypeError. The user was advised to include checks for the availability of window.monaco and window.monaco.SelectionDirection at the beginning of adapter.ts and ensure proper editor initialization in MonacoEditor.tsx. date: 2024-08-04T09:57

Codeium Chat Conversation

Note: This is purely the output of the chat conversation and does not contain any raw data, codebase snippets, etc. used to generate the output.

User at 9:57 am, Aug 4, 2024

Codeium at 9:57 am, Aug 4, 2024

The error TypeError: Cannot read properties of undefined (reading 'SelectionDirection') indicates that somewhere in adapter.ts, the SelectionDirection property is being accessed on an undefined object. This error typically occurs when a certain part of the code is executed before the object is properly initialized.

Here's a step-by-step approach to debug and potentially resolve the issue:

Step 1: Ensure Proper Initialization and Error Handling

Make sure that the Monaco Editor and Vim mode are fully initialized before any operations that might access SelectionDirection.

Step 2: Add Debugging Information

Add additional logging to understand the state of the editor and Vim mode when the error occurs:

// src/components/MonacoEditor.tsx
import { useEffect, useRef, forwardRef, useImperativeHandle } from 'react';
import * as monaco from 'monaco-editor';
import { VimMode } from 'vim-monaco';
import './MonacoEditor.css'; // Import the CSS file

interface MonacoEditorProps {
  initialValue: string;
  language: 'javascript' | 'typescript' | 'markdown';
  onChange?: (value: string) => void;
  onSave?: (value: string) => void;
  height?: string;
}

const MonacoEditor = forwardRef<any, MonacoEditorProps>(({ initialValue, language, onChange, onSave, height = '400px' }, ref) => {
  const editorRef = useRef<HTMLDivElement>(null);
  const monacoEditorRef = useRef<monaco.editor.IStandaloneCodeEditor | null>(null);
  const vimModeRef = useRef<VimMode | null>(null);

  useImperativeHandle(ref, () => ({
    focus: () => {
      monacoEditorRef.current?.focus();
    },
    getValue: () => {
      return monacoEditorRef.current?.getValue();
    },
  }));

  useEffect(() => {
    if (editorRef.current) {
      const editor = monaco.editor.create(editorRef.current, {
        value: initialValue,
        language: language,
        theme: 'vs-dark',
        automaticLayout: true,
      });

      monacoEditorRef.current = editor;

      // Initialize Vim mode with error handling
      try {
        const vimMode = new VimMode(editor);
        vimModeRef.current = vimMode;

        // Define Vim commands
        const defineVimCommands = () => {
          if (vimMode) {
            vimMode.defineEx('w', '', () => {
              if (onSave) {
                onSave(editor.getValue());
              }
            });

            vimMode.defineEx('q', '', () => {
              if (editorRef.current) {
                editorRef.current.style.display = 'none'; // Hide the editor
              }
            });

            vimMode.defineEx('wq', '', () => {
              if (onSave) {
                onSave(editor.getValue());
              }
              if (editorRef.current) {
                editorRef.current.style.display = 'none'; // Hide the editor
              }
            });
          } else {
            console.error('VimMode object is not available');
          }
        };

        defineVimCommands();

      } catch (error) {
        console.error('Error initializing VimMode:', error);
      }

      editor.onDidChangeModelContent(() => {
        if (onChange) {
          onChange(editor.getValue());
        }
      });

      return () => {
        if (vimModeRef.current) {
          vimModeRef.current.dispose();
        }
        editor.dispose();
      };
    }
  }, [initialValue, language, onChange, onSave]);

  return <div ref={editorRef} className="monaco-editor-container" style={{ height }} />;
});

export default MonacoEditor;

Step 3: Check for External Dependencies

Ensure that any external libraries or dependencies (like vim-monaco) are correctly loaded and initialized. The error might be occurring due to a missing or improperly loaded external script.

Step 4: Handle Asynchronous Operations

If the error persists, it might be due to asynchronous operations not being synchronized correctly. Ensure that the editor and Vim mode are fully initialized before performing any operations that might access SelectionDirection.

By following these steps, you should be able to debug and potentially resolve the issue causing the TypeError. If the problem persists, please provide more details about the context in which the error occurs, and any additional code snippets that might be relevant.

Context Items Read (36):

  • MonacoEditor.tsx (13-19)
  • MonacoEditor.tsx (0-5)
  • MonacoEditor.tsx ``
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md const MonacoEditor =...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md const MonacoEditor =...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md const MonacoEditor =...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md // src/components/Mo...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md const MonacoEditor =...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const editorRef = us...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md ### Full Example wit...
  • MonacoEditor.tsx }));
  • MonacoEditor.tsx (26-43)
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md _Context Items Read ...
  • MonacoEditor.tsx // src/components/Mo...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md ``
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md useEffect(() => {
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md useEffect(() => {
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md });
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md ``
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md - Codeium Chat - MEL...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md useEffect(() => {
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md });
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md useEffect(() => {

User at 10:11 am, Aug 4, 2024

Codeium at 10:11 am, Aug 4, 2024

The error you're encountering is happening inside the vim-monaco library, specifically when it tries to access the SelectionDirection property. This suggests that the library might be attempting to access this property before the editor is fully initialized or under certain conditions where the SelectionDirection does not exist.

Since the error is within a third-party library, you can't directly fix the library code. However, you can add additional checks and ensure that the editor is fully initialized before enabling Vim mode.

Step 1: Add Null Checks in adapter.ts

If you have access to the adapter.ts file in the vim-monaco library, add null checks to ensure that SelectionDirection is defined before accessing it:

// adapter.ts
const selection = editor.getSelection();
if (selection && selection.SelectionDirection) {
  const selectionDirection = selection.SelectionDirection;
  // Proceed with your logic...
} else {
  console.error('Selection or SelectionDirection is undefined');
}

Step 2: Ensure Proper Initialization of the Editor

Make sure that the Monaco Editor instance is fully initialized before enabling Vim mode. You can modify your MonacoEditor.tsx component to include additional checks:

// src/components/MonacoEditor.tsx
import { useEffect, useRef, forwardRef, useImperativeHandle } from 'react';
import * as monaco from 'monaco-editor';
import { VimMode } from 'vim-monaco';
import './MonacoEditor.css'; // Import the CSS file

interface MonacoEditorProps {
  initialValue: string;
  language: 'javascript' | 'typescript' | 'markdown';
  onChange?: (value: string) => void;
  onSave?: (value: string) => void;
  height?: string;
}

const MonacoEditor = forwardRef<any, MonacoEditorProps>(({ initialValue, language, onChange, onSave, height = '400px' }, ref) => {
  const editorRef = useRef<HTMLDivElement>(null);
  const monacoEditorRef = useRef<monaco.editor.IStandaloneCodeEditor | null>(null);
  const vimModeRef = useRef<VimMode | null>(null);

  useImperativeHandle(ref, () => ({
    focus: () => {
      monacoEditorRef.current?.focus();
    },
    getValue: () => {
      return monacoEditorRef.current?.getValue();
    },
  }));

  useEffect(() => {
    if (editorRef.current) {
      const editor = monaco.editor.create(editorRef.current, {
        value: initialValue,
        language: language,
        theme: 'vs-dark',
        automaticLayout: true,
      });

      monacoEditorRef.current = editor;

      // Ensure the editor is fully initialized before enabling Vim mode
      editor.onDidLayoutChange(() => {
        // Initialize Vim mode with error handling
        try {
          const vimMode = new VimMode(editor);
          vimModeRef.current = vimMode;

          // Define Vim commands
          const defineVimCommands = () => {
            if (vimMode) {
              vimMode.defineEx('w', '', () => {
                if (onSave) {
                  onSave(editor.getValue());
                }
              });

              vimMode.defineEx('q', '', () => {
                if (editorRef.current) {
                  editorRef.current.style.display = 'none'; // Hide the editor
                }
              });

              vimMode.defineEx('wq', '', () => {
                if (onSave) {
                  onSave(editor.getValue());
                }
                if (editorRef.current) {
                  editorRef.current.style.display = 'none'; // Hide the editor
                }
              });
            } else {
              console.error('VimMode object is not available');
            }
          };

          defineVimCommands();

        } catch (error) {
          console.error('Error initializing VimMode:', error);
        }
      });

      editor.onDidChangeModelContent(() => {
        if (onChange) {
          onChange(editor.getValue());
        }
      });

      return () => {
        if (vimModeRef.current) {
          vimModeRef.current.dispose();
        }
        editor.dispose();
      };
    }
  }, [initialValue, language, onChange, onSave]);

  return <div ref={editorRef} className="monaco-editor-container" style={{ height }} />;
});

export default MonacoEditor;

Step 3: Report an Issue to the Library Maintainers

If you suspect this is a bug in the vim-monaco library, consider reporting an issue to the maintainers of the library. Provide a detailed description of the problem along with any relevant code snippets.

Step 4: Use a Workaround

If the issue is critical and you need an immediate workaround, you could create a wrapper around the vim-monaco initialization to handle potential undefined properties.

By ensuring proper initialization and handling potential null

Context Items Read (29):

  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md _Context Items Read ...
  • MonacoEditor.tsx (0-5)
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md We need to ensure th...
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md ### Full Example wit...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md You can add error ha...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md // src/components/Mo...
  • MonacoEditor.tsx (26-43)
  • MonacoEditor.tsx (13-19)
  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md ``
  • MonacoEditor.tsx }));
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const editorRef = us...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md useEffect(() => {
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md if (editorRef.curren...
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  • Codeium Chat - uutYO1tK9OJ3zlFfzvC4klvkYa24y4FF.md ``
  • MonacoEditor.tsx // src/components/Mo...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const MonacoEditor =...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const editor = monac...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md const editor = monac...
  • Codeium Chat - aVesc8Kg2aZfR2agrhJvHFjjkjXx6nyp.md });
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User at 10:23 am, Aug 4, 2024

Codeium at 10:24 am, Aug 4, 2024

The error is likely occurring because window.monaco is not defined at the time adapter.ts is executed. To prevent this, you should add a check to ensure window.monaco and window.monaco.SelectionDirection are defined before accessing SelectionDirection.

Modify the beginning of adapter.ts to include these checks:

/**
 * An adapter to make CodeMirror's vim bindings work with monaco
 */
import { IPosition, IRange, ISelection } from "monaco-editor";
import monaco from "monaco-editor";
import { StatusBarInputOptions, ModeChangeEvent } from "./statusbar";
import { ExCommandOptionalParameters } from "./keymap_vim";
import { Pos, getEventKeyName, makePos } from "./common";

let SelectionDirection;
if (window.monaco && window.monaco.SelectionDirection) {
  SelectionDirection = window.monaco.SelectionDirection;
} else {
  console.error('window.monaco or window.monaco.SelectionDirection is undefined');
  // Handle the error or provide a fallback
  SelectionDirection = { LTR: 0, RTL: 1 }; // Example fallback
}

By adding this check, you ensure that SelectionDirection is only set if window.monaco and window.monaco.SelectionDirection are defined, preventing the TypeError.

Step 2: Ensure Proper Initialization in MonacoEditor.tsx

Ensure that the Monaco Editor is fully loaded and initialized before trying to use vim-monaco. You can do this by adding a delay or waiting for specific events:

// src/components/MonacoEditor.tsx
import { useEffect, useRef, forwardRef, useImperativeHandle } from 'react';
import * as monaco from 'monaco-editor';
import { VimMode } from 'vim-monaco';
import './MonacoEditor.css'; // Import the CSS file

interface MonacoEditorProps {
  initialValue: string;
  language: 'javascript' | 'typescript' | 'markdown';
  onChange?: (value: string) => void;
  onSave?: (value: string) => void;
  height?: string;
}

const MonacoEditor = forwardRef<any, MonacoEditorProps>(({ initialValue, language, onChange, onSave, height = '400px' }, ref) => {
  const editorRef = useRef<HTMLDivElement>(null);
  const monacoEditorRef = useRef<monaco.editor.IStandaloneCodeEditor | null>(null);
  const vimModeRef = useRef<VimMode | null>(null);

  useImperativeHandle(ref, () => ({
    focus: () => {
      monacoEditorRef.current?.focus();
    },
    getValue: () => {
      return monacoEditorRef.current?.getValue();
    },
  }));

  useEffect(() => {
    if (editorRef.current) {
      const editor = monaco.editor.create(editorRef.current, {
        value: initialValue,
        language: language,
        theme: 'vs-dark',
        automaticLayout: true,
      });

      monacoEditorRef.current = editor;

      const initializeVimMode = () => {
        try {
          const vimMode = new VimMode(editor);
          vimModeRef.current = vimMode;

          // Define Vim commands
          const defineVimCommands = () => {
            if (vimMode) {
              vimMode.defineEx('w', '', () => {
                if (onSave) {
                  onSave(editor.getValue());
                }
              });

              vimMode.defineEx('q', '', () => {
                if (editorRef.current) {
                  editorRef.current.style.display = 'none'; // Hide the editor
                }
              });

              vimMode.defineEx('wq', '', () => {
                if (onSave) {
                  onSave(editor.getValue());
                }
                if (editorRef.current) {
                  editorRef.current.style.display = 'none'; // Hide the editor
                }
              });
            } else {
              console.error('VimMode object is not available');
            }
          };

          defineVimCommands();

        } catch (error) {
          console.error('Error initializing VimMode:', error);
        }
      };

      // Delay initialization to ensure the editor is fully loaded
      setTimeout(initializeVimMode, 100);

      editor.onDidChangeModelContent(() => {
        if (onChange) {
          onChange(editor.getValue());
        }
      });

      return () => {
        if (vimModeRef.current) {
          vimModeRef.current.dispose();
        }
        editor.dispose();
      };
    }
  }, [initialValue, language, onChange, onSave]);

  return <div ref={editorRef} className="monaco-editor-container" style={{ height }} />;
});

export default MonacoEditor;

By adding these checks and ensuring proper initialization, you should be able to prevent the TypeError and ensure

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User at 10:27 am, Aug 4, 2024

Codeium at 10:27 am, Aug 4, 2024

When you modify a file within the node_modules/ directory, these changes are not persistent and will be overwritten the next time you install or update packages. Here are some strategies to make these changes more permanent:

Strategy 1: Fork and Patch the Library

  1. Fork the Repository:

    • Fork the vim-monaco library on GitHub.

  2. Clone Your Fork:

    • Clone the forked repository to your local machine.

  3. Make Your Changes:

    • Apply the necessary changes to adapter.ts in your local clone.

  4. Publish Your Fork:

    • Publish your forked version to npm under a different name, or use a GitHub URL.

  5. Update Your Project:

    • Update your project's package.json to use your forked version instead of the original vim-monaco.
    {
  "dependencies": {
    "vim-monaco": "your-github-username/vim-monaco#branch-name"
  }
}

Strategy 2: Use patch-package

patch-package allows you to keep changes to node_modules and re-apply them after every npm/yarn install.

  1. Install patch-package:

    npm install patch-package

  2. Make Your Changes:

    • Apply the necessary changes to adapter.ts directly in node_modules/vim-monaco/src/adapter.ts.

  3. Create a Patch:

    • Run patch-package to create a patch file for your changes.
    npx patch-package vim-monaco

  4. Add a Post-Install Script:

    • Add a post-install script in your package.json to apply the patch after every install.
    {
  "scripts": {
    "postinstall": "patch-package"
  }
}

Example with patch-package

  1. Install patch-package:

    npm install patch-package

  2. Make Your Changes: Modify node_modules/vim-monaco/src/adapter.ts as needed.

  3. Create a Patch:

    npx patch-package vim-monaco

    This will create a patch file in a directory called patches.

  4. Update package.json:

    {
  "scripts": {
    "postinstall": "patch-package"
  }
}

  5. Commit the Patch File: Commit the patch file generated in the patches directory to your version control system.

Conclusion

Using the patch-package approach allows you to keep your modifications within your project repository and ensures that they are reapplied after every install, making it a more straightforward and maintainable solution compared to forking the repository.

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User at 10:32 am, Aug 4, 2024

Codeium at 10:32 am, Aug 4, 2024

You're correct that you don't need to fork or patch the library just to test a temporary change. You can test the change directly within node_modules, but keep in mind that this is not a permanent solution.

Addressing the Linting Error

The linting error Property 'monaco' does not exist on type 'Window & typeof globalThis'.ts(2339) indicates that TypeScript does not recognize monaco as a property on the window object. You can add a type declaration for window.monaco to resolve this.

Add the following type declaration at the top of your adapter.ts or in a separate declaration file (e.g., global.d.ts):

// Add this to adapter.ts or a global.d.ts file

// Declare the monaco property on the window object
interface Window {
  monaco: typeof monaco;
}

Re-testing Changes Locally

  1. Add Type Declaration:

    /**
 * An adapter to make CodeMirror's vim bindings work with monaco
 */
import { IPosition, IRange, ISelection } from "monaco-editor";
import monaco from "monaco-editor";
import { StatusBarInputOptions, ModeChangeEvent } from "./statusbar";
import { ExCommandOptionalParameters } from "./keymap_vim";
import { Pos, getEventKeyName, makePos } from "./common";

// Declare the monaco property on the window object
interface Window {
  monaco: typeof monaco;
}

let SelectionDirection;
if (window.monaco && window.monaco.SelectionDirection) {
  SelectionDirection = window.monaco.SelectionDirection;
} else {
  console.error('window.monaco or window.monaco.SelectionDirection is undefined');
  // Handle the error or provide a fallback
  SelectionDirection = { LTR: 0, RTL: 1 }; // Example fallback
}

  2. Restart Your Development Server:

    • After making the changes, restart your development server to ensure the modifications are picked up.

Further Debugging

If the error persists after making these changes, it might be necessary to add more logging to understand at what point window.monaco is undefined. This can help in pinpointing whether there's a timing issue or something else causing monaco to be undefined.

let SelectionDirection;
if (window.monaco && window.monaco.SelectionDirection) {
  console.log('window.monaco and window.monaco.SelectionDirection are defined');
  SelectionDirection = window.monaco.SelectionDirection;
} else {
  console.error('window.monaco or window.monaco.SelectionDirection is undefined');
  console.dir(window.monaco);
  // Handle the error or provide a fallback
  SelectionDirection = { LTR: 0, RTL: 1 }; // Example fallback
}

Conclusion

By temporarily modifying node_modules and adding proper type declarations, you should be able to test your changes locally. If these changes work and are beneficial, you can consider making them permanent using the strategies mentioned earlier.

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  • adapter.ts liftRange
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User at 10:43 am, Aug 4, 2024

Codeium at 10:43 am, Aug 4, 2024

If the Window interface declaration is not being used or recognized, it may be due to the scope in which it's declared. You can ensure the global Window interface is extended properly by placing the declaration in a global declaration file (e.g., global.d.ts) or at the top of your adapter.ts file.

Option 1: Add a Global Declaration File

  1. Create a global.d.ts file: Create a new file named global.d.ts in your src directory (or another appropriate location).

    // src/global.d.ts
import * as monaco from 'monaco-editor';

declare global {
  interface Window {
    monaco: typeof monaco;
  }
}

  2. Ensure TypeScript Includes the Declaration: Make sure that your tsconfig.json includes the directory where global.d.ts is located.

    // tsconfig.json
{
  "compilerOptions": {
    "typeRoots": ["./node_modules/@types", "./src/types"],
    // other options...
  },
  "include": ["src/**/*"] // Ensure this matches the location of global.d.ts
}

Option 2: Add the Declaration at the Top of adapter.ts

If you prefer to keep the declaration within adapter.ts, ensure it's placed at the top of the file:

// adapter.ts
import { IPosition, IRange, ISelection } from "monaco-editor";
import monaco from "monaco-editor";
import { StatusBarInputOptions, ModeChangeEvent } from "./statusbar";
import { ExCommandOptionalParameters } from "./keymap_vim";
import { Pos, getEventKeyName, makePos } from "./common";

// Declare the monaco property on the window object
declare global {
  interface Window {
    monaco: typeof monaco;
  }
}

let SelectionDirection;
if (window.monaco && window.monaco.SelectionDirection) {
  console.log('window.monaco and window.monaco.SelectionDirection are defined');
  SelectionDirection = window.monaco.SelectionDirection;
} else {
  console.error('window.monaco or window.monaco.SelectionDirection is undefined');
  console.dir(window.monaco);
  // Handle the error or provide a fallback
  SelectionDirection = { LTR: 0, RTL: 1 }; // Example fallback
}

// Rest of your code...

Restart Your Development Server

After making these changes, restart your development server to ensure the updated type declarations are picked up.

Conclusion

By ensuring the Window interface is properly extended and recognized, you should be able to resolve the TypeScript linting error. If the runtime error persists, further debugging might be needed to understand why window.monaco is undefined at the time it's being accessed.

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User at 11:03 am, Aug 4, 2024

Codeium at 11:03 am, Aug 4, 2024

To confirm that the modified adapter.ts is being used, you can add an unmistakable log statement that will help you identify whether your changes are being picked up.

Step 1: Add a Unique Log Statement

Add a unique log statement at the very beginning of the adapter.ts file to verify that your changes are being loaded:

console.log('Custom adapter.ts loaded'); // Add this line at the very top

/**
 * An adapter to make CodeMirror's vim bindings work with monaco
 */
// adapter.ts
import { IPosition, IRange, ISelection } from "monaco-editor";
import monaco from "monaco-editor";
import { StatusBarInputOptions, ModeChangeEvent } from "./statusbar";
import { ExCommandOptionalParameters } from "./keymap_vim";
import { Pos, getEventKeyName, makePos } from "./common";

// Declare the monaco property on the window object
declare global {
  interface Window {
    monaco: typeof monaco;
  }
}

let SelectionDirection;
if (window.monaco && window.monaco.SelectionDirection) {
  console.log('window.monaco and window.monaco.SelectionDirection are defined');
  SelectionDirection = window.monaco.SelectionDirection;
} else {
  console.error('window.monaco or window.monaco.SelectionDirection is undefined');
  console.dir(window.monaco);
  // Handle the error or provide a fallback
  SelectionDirection = { LTR: 0, RTL: 1 }; // Example fallback
}

// Rest of your code...

Step 2: Clear Cache and Restart

Sometimes, changes in the node_modules directory may not be picked up immediately due to caching. Make sure to clear any caches and restart your development server:

  1. Delete the node_modules Directory:

    rm -rf node_modules

  2. Clear Any Caches:

    yarn cache clean

  3. Reinstall Dependencies:

    yarn install

  4. Restart the Development Server:

    yarn dev

Step 3: Verify the Log Statement

Check your browser's console or terminal output to see if the unique log statement (Custom adapter.ts loaded) appears. If it does, it confirms that your modified file is being used.

Additional Debugging

If the error persists and the unique log statement does not appear, it could mean that the file is not being loaded as expected. In that case:

  1. Check the Import Path: Ensure that there are no other versions or copies of vim-monaco in your project that might be overriding your changes.

  2. Examine Build Configurations: Make sure your build tool (e.g., Webpack, Vite) is correctly resolving and bundling the modified adapter.ts.

  3. Add More Logs: Add additional log statements before and after the problematic line to understand the flow of execution and pinpoint where it fails.

By following these steps, you should be able to verify whether your changes are being loaded and further debug any issues.

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