vsix: "Invalid host defined options"

[maziac]

Hi,

first: this is a very helpful extension. I am about to use it in DeZog to display flowcharts.
However I've run into a problem:
DeZog is a vscode extension.
I included the dependency to graphviz-cli and everything is fine when I debug DeZog.
I.e. I can create an SVG from the digraph and can even display it in a webview.

However if I bundle DeZog into a vscode extension, a vsix file, the line

let rendered = await renderGraphFromSource({input: dot}, {format: 'svg'});

will throw an exception: "Invalid host defined options".

Maybe this has something to do with the WASM used in graphviz-cli.

Any idea?

[prantlf]

This error should be connected to mixing CJS and ES modules. An ES module can't be loaded from a CJS module. But this package is CJS, just like a VS Code extension build output.

I published a new version 2.0.0, supporting both CJS and ES export separately and with an updated Graphviz engine. You could give it a try, if it helps.

I tried how it works in a testing VS extension - Test GraphViz. I tested both the SVG output (with no canvas added to the dependencies) and the PNG output with the canvas module included. I tested an unbundled TypeScript project, a TypeScript project bundled with webpack and an unbundled JavaScript project. A "Hello World" command was able to render the graph pictures with no error in all cases.

Maybe the stacktrace would shed more light on the module type or even the module location, which failed loading?