Basic Golang Support about vscode-debug-visualizer HOT 15 CLOSED

Can you try out to visualize this expression:

""{\"kind\":{\"graph\":true},\"nodes\":[{\"id\":\"1\"},{\"id\":\"2\"}],\"edges\":[{\"from\":\"1\",\"to\":\"2\"}]}""

If that does not work, can you enter the same expression in VS Codes watch window and post a screenshot of the result here?

from vscode-debug-visualizer.

package main

import (
	"encoding/json"
	"fmt"
	"math/rand"
	"strconv"
	"time"
)

type Graph struct {
	Kind  map[string]bool `json:"kind"`
	Nodes []NodeGraphData `json:"nodes"`
	Edges []EdgeGraphData `json:"edges"`
}

type NodeGraphData struct {
	ID    string `json:"id"`
	Label string `json:"label,omitempty"`
	Color string `json:"color,omitempty"`
	Shape string `json:"shape,omitempty"`
}

type EdgeGraphData struct {
	From   string `json:"from"`
	To     string `json:"to"`
	Label  string `json:"label,omitempty"`
	ID     string `json:"id"`
	Color  string `json:"color,omitempty"`
	Dashes bool   `json:"dashes,omitempty"`
}

func NewGraph() *Graph {
	return &Graph{
		Kind:  map[string]bool{"graph": true},
		Nodes: []NodeGraphData{},
		Edges: []EdgeGraphData{},
	}
}

func (this *Graph) toString() string {
	rs, _ := json.Marshal(this)
	return string(rs)
}

func main() {
	rand.Seed(time.Now().UnixNano())
	graph := NewGraph()
	for i := 2; i < 100; i++ {
		id := strconv.Itoa(i)
		graph.Nodes = append(graph.Nodes, NodeGraphData{
			ID:    id,
			Label: id,
		})
		targetId := rand.Intn(i) + 1
		graph.Edges = append(graph.Edges, EdgeGraphData{
			From: id,
			To:   strconv.Itoa(targetId),
		})
		s := graph.toString()
		fmt.Printf("%s", s)
	}
}

from vscode-debug-visualizer.

Can you try out to visualize this expression:

""{\"kind\":{\"graph\":true},\"nodes\":[{\"id\":\"1\"},{\"id\":\"2\"}],\"edges\":[{\"from\":\"1\",\"to\":\"2\"}]}""

If that does not work, can you enter the same expression in VS Codes watch window and post a screenshot of the result here?

1. Does not work
2. After entering the same expression in VS Codes watch window the screenshot is:
   

from vscode-debug-visualizer.

You need to start a debug session by debugging a golang program!
This extension requires the debugger to evaluate expressions.
I'm working on improving the error messages.

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from vscode-debug-visualizer.

@birdie7762 thanks for the screenshot ;) You can make it dynamic by calling a method that returns such a string.

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@birdie7761 Would you mind porting this demo to golang and creating a PR? That would be awesome! :)

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from vscode-debug-visualizer.

{"kind":{"graph":true},"nodes":[{"id":"2","label":"2"}],"edges":[{"from":"2","to":"2","id":""}]}

from vscode-debug-visualizer.

@birdie7761 thanks a lot :) If you want to be listed as contributer to this project in github, you can fork this repository and open a pull request with your file in the demo folder! (otherwise I can simply commit it by myself)

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That's Great!

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@birdie7761 thanks a lot :) If you want to be listed as contributer to this project in github, you can fork this repository and open a pull request with your file in the demo folder! (otherwise I can simply commit it by myself)

@hediet My English is very poor. I'm using a translator, so I haven't had a text reply to you before. PR I've created.(#37)
The golang serialized output of json cannot be displayed correctly.
The error information is as follows:

Error: Could not parse "{"kind":{"graph":true},"nodes":[{"id":"2","label":"2"}],"edges":...+32 more" as JSON. Unexpected token k in JSON at position 3

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My English is very poor. I'm using a translator, so I haven't had a text reply to you before.

No problem ;)

PR I've created.(#37)

Thank you!

Sorry, I didn't look at your screenshot properly. Thanks for providing it!
Looks like it choked on ... + 32 more. It's interesting that the Debug Console does not has this ... + 32 more. I guess the debug adapter adds this text when the string gets too long.

Which debug adapter do you use?

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The debug used is delve

Delve's maxStringLen default is small and needs to be adjusted for the maxStringLen default of the delve. See in detail (microsoft/vscode-go#868).
Add the following configuration to launch.json

"dlvLoadConfig": {
                "followPointers": true,
                "maxVariableRecurse": 1,
                "maxStringLen": 500,
                "maxArrayValues": 64,
                "maxStructFields": -1
            }

Adjustments can already be shown.

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Closing this as I've verified that the golang demo works.

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