Should not evaluate delayed-assign object before it gets called

Describe the bug

VSCode-R evaluates the delayed-assign object too early.

To Reproduce

1. Open VSCode (with VSCode-R installed)
2. Open the radian terminal in VSCode
3. Paste the following code in to the radian terminal

delayedAssign("delayed_obj", {
  stop("should not execute")
})

in VSCode’s terminal

The code inside has been executed but it shouldn’t as delayed_obj is not evaluated

in a normal terminal

The code inside is executed only when delayed_obj gets evaluated

Do you want to fix by self? (I hope your help!)

Yes

(If yes,) what kind of help do you want? (e.g. Which file should I fix, Survey (related documents)

I want to know where to get started…

(If related)setting.json

{
    "remote.SSH.connectTimeout": 30,
    "remote.SSH.maxReconnectionAttempts": 5,
    "remote.SSH.remotePlatform": {
        "10.4.119.58": "linux",
        "10.4.120.45": "linux"
    },
    "r.sessionWatcher": true,
    "r.rterm.windows": "D:\\app\\Python\\Python39\\Scripts\\radian.exe",
    "r.rpath.windows": "D:\\app\\R-4.0.0\\bin\\R.exe",
    "diffEditor.renderSideBySide": true,
    "[r]": {
        "editor.formatOnSave": false
    },
    "git.autofetchPeriod": 300,
    "terminal.integrated.shell.windows": "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe",
    "window.zoomLevel": 0,
    "r.lsp.diagnostics": false,
    "git.confirmSync": false,
    "r.alwaysUseActiveTerminal": true,
    "r.bracketedPaste": true,
    "diffEditor.ignoreTrimWhitespace": false,
    "git.autofetch": true,
    "editor.tabSize": 2,
    "terminal.external.windowsExec": "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe",
    "typescript.suggest.paths": false
}

Expected behavior

Should not evaluate the delayed-assign object so early - we should only evaluate the object when we really need it

Screenshots

See the comment in Reproduce Step

Environment (please complete the following information):

• OS: Win 10
• VSCode Version: 1.52.1
• R Version: 4.0.2
• vscode-R version: 1.6.3

[renkun-ken]

I think the easiest way is to use rlang::env_binding_are_lazy(.GlobalEnv).

[tdeenes]

I’m hesitated to introduce an R package to work with session watcher like vscDebugger does with VSCode-R-Debugger because it makes vscode-R less work-out-of-the-box unless we also make the whole installation process fast and smooth.

Well, the relevant code already depends on jsonlite. So adding a further tiny package should not make the installation process much harder.