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

330 lines
12 KiB
TypeScript

import * as vscode from "vscode";
import { exec } from "child_process";
import path from "path";
import { ABBREV } from "./abbrev";
interface FC {
file: string;
line: number;
col: number;
}
interface TopEntry {
fc: FC;
name: string;
type: string;
}
interface TopData {
context: TopEntry[];
}
export function activate(context: vscode.ExtensionContext) {
let topData: undefined | TopData;
const diagnosticCollection =
vscode.languages.createDiagnosticCollection("newt");
vscode.workspace.onDidChangeTextDocument((event) => {
const editor = vscode.window.activeTextEditor;
if (!editor || event.document !== editor.document) return;
const changes = event.contentChanges;
if (changes.length === 0) return;
const lastChange = changes[changes.length - 1];
const text = lastChange.text;
// Check if the last change is a potential shortcut trigger
if (!text || !( " ')\\".includes(text) || text.startsWith('\n'))) return;
const document = editor.document;
const position = lastChange.range.end;
const lineText = document.lineAt(position.line).text;
const start = Math.max(0, position.character - 10);
const snippet = lineText.slice(start, position.character);
const m = snippet.match(/(\\[^ ]+)$/);
if (m) {
const cand = m[0];
console.log("cand", cand);
const replacement = ABBREV[cand];
console.log("repl", replacement);
if (replacement) {
const range = new vscode.Range(
position.line,
position.character - cand.length,
position.line,
position.character
);
editor.edit((editBuilder) => {
editBuilder.replace(range, replacement);
});
}
}
});
function checkDocument(document: vscode.TextDocument) {
const fileName = document.fileName;
// Is there a better way to do this? It will get fussy with quoting and all plus it's not visible to the user.
const workspaceFolder = vscode.workspace.getWorkspaceFolder(document.uri);
const cwd = workspaceFolder
? workspaceFolder.uri.fsPath
: path.dirname(fileName);
const config = vscode.workspace.getConfiguration("newt");
const cmd = config.get<string>("path", "node bootstrap/newt.js");
const command = `${cmd} --top ${fileName}`;
let st = +new Date();
exec(
command,
{ cwd, maxBuffer: 1024 * 1024 * 10 },
(err, stdout, _stderr) => {
console.log(`newt took ${+new Date() - st}`);
// I think I ignored 1 here because I wanted failure to launch
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[] = [];
if (err) {
let start = new vscode.Position(0, 0);
let end = new vscode.Position(0, 1);
let range =
document.getWordRangeAtPosition(start) ??
new vscode.Range(start, end);
const diag = new vscode.Diagnostic(
range,
"newt execution failed",
vscode.DiagnosticSeverity.Error
);
diagnostics.push(diag);
}
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
if (line.startsWith("TOP:")) {
try {
topData = JSON.parse(line.slice(4));
} catch (e) {
console.error("Bad top data", e);
}
console.log("top data", topData);
}
const match = line.match(
/(INFO|WARN|ERROR) at (.*):(\d+):(\d+)--(\d+):(\d+):\s*(.*)/
);
if (match) {
let [_full, kind, file, line, column, eline, ecol, message] = match;
let lnum = +line - 1;
let cnum = +column - 1;
let elnum = +eline - 1;
let ecnum = +ecol - 1;
let start = new vscode.Position(lnum, cnum);
let end = new vscode.Position(elnum, ecnum);
let range = new vscode.Range(start, end);
if (file !== fileName) {
range = new vscode.Range(new vscode.Position(0,0), new vscode.Position(0,0));
}
// anything indented after the ERROR/INFO line are part of
// the message
while (lines[i + 1]?.match(/^( )/)) message += "\n" + lines[++i];
let severity;
if (kind === "ERROR") severity = vscode.DiagnosticSeverity.Error;
else if (kind === "WARN")
severity = vscode.DiagnosticSeverity.Warning;
else severity = vscode.DiagnosticSeverity.Information;
const diag = new vscode.Diagnostic(range, message, severity);
if (kind === "ERROR" || lnum > 0) diagnostics.push(diag);
}
}
diagnosticCollection.set(vscode.Uri.file(fileName), diagnostics);
}
);
}
const runNewt = 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(
vscode.languages.registerDefinitionProvider(
{ language: "newt" },
{
provideDefinition(document, position, cancelToken) {
if (!topData) return null;
const wordRange = document.getWordRangeAtPosition(position);
if (!wordRange) return null;
const name = document.getText(wordRange);
let entry = topData.context.find((entry) => entry.name === name);
if (!entry) {
console.log(`entry ${name} not found`);
return null;
}
const root = vscode.workspace.getWorkspaceFolder(document.uri);
if (!root) {
console.error("Workspace folder not found");
return null;
}
// let uri = vscode.Uri.file(path.join(root.uri.fsPath, entry.fc.file));
let fileName = entry.fc.file;
if (!fileName.startsWith('/')) fileName = path.join(root.uri.fsPath, fileName);
let uri = vscode.Uri.file(fileName);
console.log('root', root.uri.fsPath, 'file', entry.fc.file, 'uri', uri);
let start = new vscode.Position(entry.fc.line, entry.fc.col);
let range = new vscode.Range(start, start);
return new vscode.Location(uri, range);
},
}
)
);
context.subscriptions.push(
vscode.languages.registerCompletionItemProvider(
{ language: "newt" },
{
provideCompletionItems(document, position, token, context) {
if (!topData) return [];
const wordRange = document.getWordRangeAtPosition(position);
const prefix = wordRange ? document.getText(wordRange) : "";
const items: vscode.CompletionItem[] = [];
for (const entry of topData.context) {
if (entry.name.startsWith(prefix)) {
const item = new vscode.CompletionItem(entry.name, vscode.CompletionItemKind.Function);
item.detail = entry.type;
items.push(item);
}
}
return items;
}
},
...'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_'.split('')
)
);
context.subscriptions.push(
vscode.languages.registerHoverProvider(
{ language: "newt" },
{
provideHover(document, position, token) {
if (!topData) return null;
const wordRange = document.getWordRangeAtPosition(position);
if (!wordRange) return null;
const name = document.getText(wordRange);
let entry = topData.context.find((entry) => entry.name === name);
if (!entry) {
console.log(`entry ${name} not found`);
return null;
}
return new vscode.Hover(`${entry.name} : ${entry.type}`);
},
}
)
);
context.subscriptions.push(
vscode.languages.registerDocumentSymbolProvider(
{ language: "newt" },
{
provideDocumentSymbols(document, token) {
console.log("DSP!!");
const symbols: vscode.DocumentSymbol[] = [];
// we should ask the compiler
const RE_FUNC = /^(|data|record|class|instance)\s*([\d\w']+)\s*:/;
for (let i = 0; i < document.lineCount; i++) {
const line = document.lineAt(i);
const match = line.text.match(RE_FUNC);
if (match) {
const prefix = match[1];
const functionName = match[2];
const range = new vscode.Range(
new vscode.Position(i, 0),
new vscode.Position(i, line.text.length)
);
let type = vscode.SymbolKind.Function;
let details = "Function";
if (prefix === "class") type = vscode.SymbolKind.Interface;
if (prefix === "instance") type = vscode.SymbolKind.Class;
if (prefix === "record") type = vscode.SymbolKind.Struct;
if (prefix === "data") type = vscode.SymbolKind.Struct;
const symbol = new vscode.DocumentSymbol(
functionName,
details,
type,
range, // full range
range // selection
);
symbols.push(symbol);
}
}
console.log("SYMBOLS", symbols);
return symbols;
},
}
)
);
context.subscriptions.push(runNewt);
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);
context.subscriptions.push(
vscode.languages.registerCodeActionsProvider(
{ language: "newt" },
{
provideCodeActions(document, range, context, token) {
const actions: vscode.CodeAction[] = [];
for (const diagnostic of context.diagnostics) {
let {message,range} = diagnostic;
let m = message.match(/missing cases: (.*)/);
if (m) {
// A lot of this logic would also apply to case split.
let cons = m[1].split(', ');
const line = range.start.line;
const lineText = document.lineAt(line).text;
let m2 = lineText.match(/(.*=>?)/);
if (!m2) continue;
let s = range.start.character;
let e = range.end.character;
let a = lineText.slice(0,s);
let b = lineText.slice(e,m2[0].length);
let parens = a.endsWith('(') && b.startsWith(')');
let lines = cons.map(con =>
!parens && con.includes('_')
? `${a}(${con})${b} ?`
: `${a}${con}${b} ?`);
const fix = new vscode.CodeAction(
"Add missing cases",
vscode.CodeActionKind.QuickFix
);
fix.edit = new vscode.WorkspaceEdit();
// TODO - we should skip over subsequent lines that are indented more than the current.
const insertPos = new vscode.Position(line + 1, 0);
fix.edit.insert(document.uri, insertPos, lines.join('\n') + '\n');
fix.diagnostics = [diagnostic];
fix.isPreferred = true;
actions.push(fix);
}
}
return actions;
}
}
)
);
}
export function deactivate() {}