Extract out coercion helpers

Author: celonymire

src/common/provider.ts

@@ -53,3 +53,19 @@ export interface IProblem {
 		size: number;
 	};
 }
+
+export function coerceToObject(data: unknown): object {
+	if (typeof data === "object" && data !== null) {
+		return data;
+	}
+	return {};
+}
+export function coerceToArray(data: unknown): object[] {
+	const arr = [];
+	if (Array.isArray(data)) {
+		for (const obj of data) {
+			arr.push(coerceToObject(obj));
+		}
+	}
+	return arr;
+}

src/views/judge/provider/JudgeViewProvider.ts

@@ -2,7 +2,13 @@ import * as path from "node:path";
 import * as vscode from "vscode";
 
 import { type ITestcase, Status, Stdio } from "~common/common";
-import type { ILanguageSettings, IProblem, ITest } from "~common/provider";
+import {
+	coerceToArray,
+	coerceToObject,
+	type ILanguageSettings,
+	type IProblem,
+	type ITest,
+} from "~common/provider";
 import BaseViewProvider from "~utils/BaseViewProvider";
 import { compile, Runnable } from "~utils/runtime";
 import {
@@ -55,22 +61,6 @@ function setTestcaseStats(state: IState, timeLimit: number) {
 	}
 }
 
-function coerceToObject(data: unknown): unknown {
-	if (typeof data === "object" && data !== null) {
-		return data;
-	}
-	return {};
-}
-function coerceToArray(data: unknown): unknown[] {
-	const arr = [];
-	if (Array.isArray(data)) {
-		for (const obj of data) {
-			arr.push(coerceToObject(obj));
-		}
-	}
-	return arr;
-}
-
 export default class extends BaseViewProvider<ProviderMessage, WebviewMessage> {
 	private _state: Map<number, IState> = new Map(); // Map also remembers insertion order :D
 	private _timeLimit = 0;

src/views/stress/provider/StressViewProvider.ts

@@ -2,7 +2,11 @@ import * as path from "node:path";
 import * as vscode from "vscode";
 
 import { Status } from "~common/common";
-import type { ILanguageSettings } from "~common/provider";
+import {
+	coerceToArray,
+	coerceToObject,
+	type ILanguageSettings,
+} from "~common/provider";
 import BaseViewProvider from "~utils/BaseViewProvider";
 import { compile, Runnable } from "~utils/runtime";
 import {
@@ -107,12 +111,9 @@ export default class extends BaseViewProvider<ProviderMessage, WebviewMessage> {
 		super._postMessage({ type: WebviewMessageType.SHOW, visible: true });
 
 		const fileData = super.readStorage()[file];
-		const state = fileData && Array.isArray(fileData) ? fileData : [];
+		const state = coerceToArray(fileData);
 		for (let id = 0; id < state.length; id++) {
-			const testcase =
-				state[id] !== "null" && typeof state[id] === "object"
-					? (state[id] as Partial<IData>)
-					: {};
+			const testcase = coerceToObject(state[id]) as Partial<IData>;
 
 			this._state[id].data.write(testcase.data ?? "", true);
 			this._state[id].status = testcase.status ?? Status.NA;