release 0.2.0

+ error linting
+ clearer missing hblang message
+ misc

.vscodeignore

@@ -0,0 +1,13 @@
+# ---> VisualStudioCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix

README.md

@@ -6,6 +6,7 @@ syntax highlighting for hblang in vscode
 
 0. run `rustup default nightly` (you need nightly)
 1. run `cargo install hblang --git https://git.ablecorp.us/ableos/holey-bytes`
+	> remember to keep this updated
 2. add `$HOME/.cargo/bin` (or wherever you installed hblang) to `$PATH`
 	> in bash, `export PATH=$PATH:$HOME/.cargo/bin`<br>
 	> in other shells, there may be other ways

language-configuration.json

@@ -68,8 +68,8 @@
 	],
 	"folding": {
 		"markers": {
-			"start": "^\\s*//\\s*#region\\b",
-			"end": "^\\s*//\\s*#endregion\\b"
+			"start": "{\n",
+			"end": "}"
 		}
 	},
 	"indentationRules": {

package-lock.json

@@ -16,7 +16,7 @@
 				"typescript": "^4.0.0",
 				"vscode": "^1.1.37",
 				"webpack": "^5.0.0",
-				"webpack-cli": "^4.0.0"
+				"webpack-cli": "^4.10.0"
 			},
 			"engines": {
 				"vscode": "^1.75.0"

package.json

@@ -6,7 +6,7 @@
 	"publisher": "koniifer",
 	"displayName": "hblang",
 	"description": "Syntax highlighter and formatter for holey-bytes lang",
-	"version": "0.1.0",
+	"version": "0.2.0",
 	"engines": {
 		"vscode": "^1.75.0"
 	},
@@ -63,6 +63,6 @@
 		"typescript": "^4.0.0",
 		"vscode": "^1.1.37",
 		"webpack": "^5.0.0",
-		"webpack-cli": "^4.0.0"
+		"webpack-cli": "^4.10.0"
 	}
 }

src/main.ts

@@ -1,62 +1,124 @@
 import * as vscode from 'vscode';
-import { spawn } from 'child_process';
+import { execFile } from 'child_process';
 import * as fs from 'fs';
 import * as path from 'path';
 
 vscode.languages.registerDocumentFormattingEditProvider('hblang', {
 	async provideDocumentFormattingEdits(document: vscode.TextDocument): Promise<vscode.TextEdit[]> {
-		try {
-			const filePath = document.uri.fsPath;
-			const tempFilePath = path.join(path.dirname(filePath), `temp_${path.basename(filePath)}`);
+		const filePath = document.uri.fsPath;
+		const tempFilePath = path.join(path.dirname(filePath), `temp_${path.basename(filePath)}`);
 
+		try {
 			await fs.promises.writeFile(tempFilePath, document.getText());
 
-			return new Promise((resolve, reject) => {
-				const hbcProcess = spawn('hbc', ['--fmt-stdout', tempFilePath]);
-
-				let stdout = '';
-				let stderr = '';
-
-				hbcProcess.stdout.on('data', (data) => {
-					stdout += data.toString();
-				});
-
-				hbcProcess.stderr.on('data', (data) => {
-					stderr += data.toString();
-				});
-
-				hbcProcess.on('close', (code) => {
-					fs.unlink(tempFilePath, (err) => {
-						if (err) {
-							console.error('Error removing temp file:', err);
+			const stdout = await new Promise<string>((resolve, reject) => {
+				execFile('hbc', ['--fmt-stdout', tempFilePath], (error, stdout, stderr) => {
+					if (error) {
+						if (error.code === 'ENOENT') {
+							vscode.window.showErrorMessage("hblang compiler not found. ensure 'hbc' is installed and available in PATH.");
+						} else {
+							vscode.window.showErrorMessage(`error formatting document with hbc: ${stderr || `exit code: ${error.code}`}`);
 						}
-					});
-
-					if (code === 0) {
-						const fullRange = new vscode.Range(
-							document.positionAt(0),
-							document.positionAt(document.getText().length)
-						);
-						const edit = vscode.TextEdit.replace(fullRange, stdout);
-						resolve([edit]);
-					} else {
-						vscode.window.showErrorMessage(`hbc formatting failed: ${stderr}`);
-						reject(new Error(stderr));
+						return reject(new Error(stderr || `exit code: ${error.code}`));
 					}
-				});
-
-				hbcProcess.on('error', (err) => {
-					vscode.window.showErrorMessage(`Failed to start hbc: ${err.message}`);
-					reject(err);
+					resolve(stdout);
 				});
 			});
+
+			const fullRange = new vscode.Range(
+				document.positionAt(0),
+				document.positionAt(document.getText().length)
+			);
+			const edit = vscode.TextEdit.replace(fullRange, stdout);
+			return [edit];
+
 		} catch (error) {
-			if (error instanceof Error) {
-				vscode.window.showErrorMessage(`Error formatting document: ${error.message}`);
-			} else {
-				vscode.window.showErrorMessage('An unknown error occurred while formatting the document.');
+
+			if (error instanceof Error && error.message.includes('ENOENT')) {
+				return [];
 			}
+
+
+			const message = error instanceof Error ? error.message : 'unknown error occurred.';
+			vscode.window.showErrorMessage(`error formatting document: ${message}`);
 			return [];
+		} finally {
+			fs.promises.unlink(tempFilePath).catch((err) => {
+				console.error('error removing temp file:', err);
+			});
 		}
 	}
 });
+
+
+
+let diagnosticCollection: vscode.DiagnosticCollection;
+
+export function activate(context: vscode.ExtensionContext) {
+	diagnosticCollection = vscode.languages.createDiagnosticCollection('hblang');
+	context.subscriptions.push(diagnosticCollection);
+
+	vscode.workspace.onDidSaveTextDocument(onDocumentSaved);
+}
+
+async function onDocumentSaved(document: vscode.TextDocument) {
+	if (document.languageId === 'hblang') {
+		await lintDocument(document);
+	}
+}
+
+async function lintDocument(document: vscode.TextDocument) {
+	const filePath = document.uri.fsPath;
+
+	try {
+		const stderr = await runCompiler(filePath);
+		const diagnostics = parseLintingErrors(stderr);
+		diagnosticCollection.set(document.uri, diagnostics);
+	} catch (error) {
+		if (error instanceof Error) {
+			const diagnostics = parseLintingErrors(error.message);
+			diagnosticCollection.set(document.uri, diagnostics);
+		} else {
+			vscode.window.showErrorMessage(`error linting hblang document for some reason`)
+		}
+	}
+}
+
+async function runCompiler(filePath: string): Promise<string> {
+	return new Promise<string>((resolve, reject) => {
+		execFile('hbc', [filePath], (error, stdout, stderr) => {
+			if (error) {
+				if (error.code === 'ENOENT') {
+
+					vscode.window.showErrorMessage("hblang compiler not found. ensure 'hbc' is installed and available in PATH.");
+				}
+				reject(new Error(stderr || `Exit code: ${error.code}`));
+			} else {
+				resolve(stderr);
+			}
+		});
+	});
+}
+
+function parseLintingErrors(stderr: string): vscode.Diagnostic[] {
+	const diagnostics: vscode.Diagnostic[] = [];
+	const lines = stderr.trim().split('\n');
+
+	for (const line of lines) {
+		const match = line.match(/^([^:]+):(\d+):(\d+):\s*(.+)$/);
+		if (match && !line.includes('missing main function')) {
+			const [, filePath, lineStr, columnStr, message] = match;
+			const line = parseInt(lineStr, 10) - 1;
+			const column = parseInt(columnStr, 10) - 1;
+			const diagnostic = new vscode.Diagnostic(
+				new vscode.Range(line, column, line, column + message.length),
+				message,
+				vscode.DiagnosticSeverity.Error
+			);
+			diagnostic.source = 'hbc';
+			diagnostics.push(diagnostic);
+		}
+	}
+
+	return diagnostics;
+}