Files
newt/newt-vscode/src/extension.ts

92 lines
3.2 KiB
TypeScript

import * as vscode from "vscode";
import { exec } from "child_process";
import path from "path";
export function activate(context: vscode.ExtensionContext) {
const diagnosticCollection =
vscode.languages.createDiagnosticCollection("newt");
function checkDocument(document: vscode.TextDocument) {
const fileName = document.fileName;
// Is there a better way to do this? It will get fussy with quoting and all plus it's not visible to the user.
const workspaceFolder = vscode.workspace.getWorkspaceFolder(document.uri);
const cwd = workspaceFolder
? workspaceFolder.uri.fsPath
: path.dirname(fileName);
const config = vscode.workspace.getConfiguration("newt");
const cmd = config.get<string>("path", "build/exec/newt");
const command = `${cmd} ${fileName}`;
exec(command, { cwd }, (err, stdout, _stderr) => {
if (err && err.code !== 1) {
vscode.window.showErrorMessage(`newt error: ${err}`);
}
// extract errors and messages from stdout
const lines = stdout.split("\n");
const diagnostics: vscode.Diagnostic[] = [];
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
const match = line.match(/(INFO|ERROR) at \((\d+), (\d+)\): (.*)/);
if (match) {
let [_full, kind, line, column, message] = match;
let lnum = Number(line);
let cnum = Number(column);
let start = new vscode.Position(lnum, cnum);
// we don't have the full range, so grab the surrounding word
let end = new vscode.Position(lnum, cnum+1);
let range =
document.getWordRangeAtPosition(start) ??
new vscode.Range(start, end);
// heuristics to grab the entire message:
// anything indented
// Context:, or Goal: are part of PRINTME
// unexpected / expecting appear in parse errors
while (
lines[i + 1]?.match(/^( )/)
) {
message += "\n" + lines[++i];
}
const severity = kind === 'ERROR' ? vscode.DiagnosticSeverity.Error : vscode.DiagnosticSeverity.Information;
const diag = new vscode.Diagnostic(range, message, severity);
diagnostics.push(diag);
}
}
diagnosticCollection.set(vscode.Uri.file(fileName), diagnostics);
});
}
const runPiForall = vscode.commands.registerCommand(
"newt-vscode.check",
() => {
const editor = vscode.window.activeTextEditor;
if (editor) {
const document = editor.document;
if (document.fileName.endsWith(".newt")) {
checkDocument(document);
}
}
}
);
context.subscriptions.push(runPiForall);
vscode.workspace.onDidSaveTextDocument((document) => {
if (document.fileName.endsWith(".newt")) {
vscode.commands.executeCommand("newt-vscode.check");
}
});
vscode.workspace.onDidOpenTextDocument((document) => {
if (document.fileName.endsWith(".newt")) {
vscode.commands.executeCommand("newt-vscode.check");
}
});
for (let document of vscode.workspace.textDocuments) {
if (document.fileName.endsWith(".newt")) {
checkDocument(document);
}
}
context.subscriptions.push(diagnosticCollection);
}
export function deactivate() {}