Why does calling multiple inserts with vscode's api inserts only the first string?-CodePudding

I'm playing with vscode's API and I simply tried to insert two strings into the active editor with two edit calls, but only the first string is inserted:

    const editor  = vscode.window.activeTextEditor;

    editor?.edit(edit => {
        edit.insert(editor.selection.active, 'test1');

    });

    editor?.edit(edit => {
        edit.insert(editor.selection.active, 'test2');
                
        });

Why is that? I know that if I put the two strings in the same call then it works, but I don't get it why it doesn't work with separate calls.

CodePudding user response：

I think it has to do with "Note that the edit-builder is only valid while the callback executes." bit since it never prints test2 (from https://code.visualstudio.com/api/references/vscode-api#TextEditor).

Perhaps it is because you are creating another edit-builder while the first still exists - it is asynchronous (and may very well be a singleton so another instance may not be created before the first finishes).

This works:

editor?.edit(edit => {
  edit.insert(editor.selection.active, 'test1');
  edit.insert(editor.selection.active, 'test2');
})

and this works:

editor?.edit(edit => {
    edit.insert(editor.selection.active, 'test1');
    // edit.insert(editor.selection.active, 'test2');
}).then(success => {
    if (!success) {
      return
    }
    else {
      editor?.edit(edit => {
        edit.insert(editor.selection.active, 'test2');              
  })
}