Variables pane does not update after executing code via debug evaluate in context menu

[karthiknadig]

Issue Type: Bug
VS Code version: Code 1.36.1 (2213894, 2019-07-08T22:59:35.033Z)
OS version: Windows_NT x64 10.0.18362

System Info

Item	Value
CPUs	Intel(R) Xeon(R) W-2133 CPU @ 3.60GHz (12 x 3600)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	31.73GB (18.96GB free)
Process Argv	--file-uri file:///c%3A/GIT/ptvsd/ptvsd.code-workspace
Screen Reader	no
VM	0%

Extensions (14)

Extension	Author (truncated)	Version
EditorConfig	Edi	0.13.0
vscode-docker	ms-	0.7.0
python	ms-	2019.6.24221
remote-containers	ms-	0.66.0
remote-ssh	ms-	0.44.2
remote-ssh-edit	ms-	0.44.2
remote-ssh-explorer	ms-	0.44.2
remote-wsl	ms-	0.38.10
vscode-remote-extensionpack	ms-	0.15.0
cpptools	ms-	0.24.1
csharp	ms-	1.21.0
powershell	ms-	2019.5.0
vscode-typescript-tslint-plugin	ms-	1.2.2
code-spell-checker	str	1.7.17

I work on the Python extension and I have investigated the issue. Variables request does not called after executing code in debug console via the context menu item. Running to code in directly using the debug consle input correctly updates it.

Evaluate using "Debug: Evaluate" via context menu:

D00017.218: IDE --> {
                "command": "evaluate",
                "arguments": {
                    "expression": "a = 10",
                    "frameId": 2,
                    "context": "repl"
                },
                "type": "request",
                "seq": 17
            }

D00017.234: (while handling {'command': 'evaluate', 'type': 'request', 'seq': 17})
            IDE <-- {
                "type": "response",
                "seq": 22,
                "request_seq": 17,
                "success": true,
                "command": "evaluate",
                "message": "",
                "body": {
                    "result": "",
                    "variablesReference": 0,
                    "presentationHint": {}
                }
            }

// Scope or variables request should have occurred here
D00027.453: IDE --> {
                "command": "completions",
                "arguments": {
                    "frameId": 2,
                    "text": "b",
                    "column": 2,
                    "line": 1
                },
                "type": "request",
                "seq": 18
            }

Evaluate using debug console input:

D00030.640: IDE --> {
                "command": "evaluate",
                "arguments": {
                    "expression": "b=5",
                    "frameId": 2,
                    "context": "repl"
                },
                "type": "request",
                "seq": 19
            }


D00030.640: IDE --> {
                "command": "scopes",
                "arguments": {
                    "frameId": 2
                },
                "type": "request",
                "seq": 20
            }

D00030.640: (while handling {'command': 'scopes', 'type': 'request', 'seq': 20})
            IDE <-- {
                "type": "response",
                "seq": 24,
                "request_seq": 20,
                "success": true,
                "command": "scopes",
                "message": "",
                "body": {
                    "scopes": [
                        {
                            "name": "Locals",
                            "variablesReference": 2,
                            "expensive": false,
                            "source": {}
                        }
                    ]
                }
            }

D00030.640: IDE --> {
                "command": "variables",
                "arguments": {
                    "variablesReference": 2
                },
                "type": "request",
                "seq": 21
            }

D00030.640: (while handling {'command': 'evaluate', 'type': 'request', 'seq': 19})
            IDE <-- {
                "type": "response",
                "seq": 25,
                "request_seq": 19,
                "success": true,
                "command": "evaluate",
                "message": "",
                "body": {
                    "result": "",
                    "variablesReference": 0,
                    "presentationHint": {}
                }
            }

D00030.640: (while handling {'command': 'variables', 'type': 'request', 'seq': 21})
            IDE <-- {
                "type": "response",
                "seq": 26,
                "request_seq": 21,
                "success": true,
                "command": "variables",
                "message": "",
                "body": {
                    "variables": [
                        {
                            "name": "a",
                            "value": "10",
                            "type": "int",
                            "evaluateName": "a",
                            "variablesReference": 0
                        },
                        {
                            "name": "b",
                            "value": "5",
                            "type": "int",
                            "evaluateName": "b",
                            "variablesReference": 0
                        }
                    ]
                }
            }

[isidorn]

@karthiknadig good catch. I have pushed a fix and you can try vscode insiders from Wednesday to verify if it behaves good now. Thanks a lot