How to provide arguments to resolveCodeLens in Visual Studio Code? - visual-studio-code

Question

According to the example of a Visual Studio Code extension (https://github.com/microsoft/vscode-extension-samples/tree/master/codelens-sample) it is possible to resolve code lens:
public resolveCodeLens(codeLens: vscode.CodeLens, token: vscode.CancellationToken) {
if (vscode.workspace.getConfiguration("codelens-sample").get("enableCodeLens", true)) {
codeLens.command = {
title: "Codelens provided by sample extension",
tooltip: "Tooltip provided by sample extension",
command: "codelens-sample.codelensAction",
arguments: ["Argument 1", false]
};
return codeLens;
}
return null;
}
The code lens displays next to a line of text in the editor window.
But it does not show any information dependant on the line.
I would like to pass the line of text to display in the codeLens command title. To create multiple custom messages.
How to provide a text "next" to codeLens displays to resolveCodeLens?

Answer 1

I had the same need to display line contextual information. Inspecting the constructor for CodeLens it accepts the command object in the second parameter.
Codelens constructor
here is a snippet based on my implementation to solve this:
provideCodeLenses(document, token) {
this.codeLenses = [];
const regex = new RegExp("^[156789].*$");
let lines = document.getText().split("\n");
lines.forEach((lineText, lineNumber) => {
if (regex.test(lineText)) {
const position = new vscode.Position(lineNumber, 0);
const range = new vscode.Range(position, position);
let command = {
command = "",
title = "<your custom title based on lineText>"
};
this.codeLenses.push(new vscode.CodeLens(range, command));
}
});
return this.codeLenses;
}