Method detectMode

lib/javascript/JavascriptParser.js:4702–4717

* Processes the provided statement. * @param {(Directive | Statement | ModuleDeclaration)[]} statements statements

(statements)

	 * @param {(Directive | Statement | ModuleDeclaration)[]} statements statements
	 */
	detectMode(statements) {
		const statement = statements.length >= 1 ? statements[0] : undefined;
		if (
			statement === undefined ||
			statement.type !== "ExpressionStatement" ||
			statement.expression.type !== "Literal"
		) {
			return;
		}
		const value = /** @type {Literal} */ (statement.expression).value;
		if (value === "use strict") {
			this.scope.isStrict = true;
		} else if (value === "use asm") {
			this.scope.isAsmJs = true;
		}
	}

	/**
	 * Processes the provided pattern.