"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "packages/babel-helper-optimise-call-expression/src/index.js" between
babel-7.12.6.tar.gz and babel-7.12.7.tar.gz

About: Babel is a JavaScript compiler that is mainly used to convert ECMAScript 2015+ code into a backwards compatible version of JavaScript. Hint: There exists a high-performance language interoperability tool also named "Babel".

index.js  (babel-7.12.6)	:	index.js  (babel-7.12.7)
import * as t from "@babel/types";		import * as t from "@babel/types";
export default function (callee, thisNode, args, optional) {		/**
		* A helper function that generates a new call expression with given thisNode.
		It will also optimize `(...arguments)` to `.apply(arguments)`
		*
		* @export
		* @param {Node} callee The callee of call expression
		* @param {Node} thisNode The desired this of call expression
		* @param {Node[]} args The arguments of call expression
		* @param {boolean} optional Whether the call expression is optional
		* @returns {CallExpression | OptionalCallExpression} The generated new call exp
		ression
		*/
		export default function (
		callee: Node,
		thisNode: Node,
		args: Node[],
		optional: boolean,
		): CallExpression | OptionalCallExpression {
if (		if (
args.length === 1 &&		args.length === 1 &&
t.isSpreadElement(args[0]) &&		t.isSpreadElement(args[0]) &&
t.isIdentifier(args[0].argument, { name: "arguments" })		t.isIdentifier(args[0].argument, { name: "arguments" })
) {		) {
// eg. super(...arguments);		// a.b?.(...arguments);
		if (optional) {
		return t.optionalCallExpression(
		t.optionalMemberExpression(callee, t.identifier("apply"), false, true),
		[thisNode, args[0].argument],
		false,
		);
		}
		// a.b(...arguments);
return t.callExpression(t.memberExpression(callee, t.identifier("apply")), [		return t.callExpression(t.memberExpression(callee, t.identifier("apply")), [
thisNode,		thisNode,
args[0].argument,		args[0].argument,
]);		]);
} else {		} else {
		// a.b?.(arg1, arg2)
if (optional) {		if (optional) {
return t.optionalCallExpression(		return t.optionalCallExpression(
t.optionalMemberExpression(callee, t.identifier("call"), false, true),		t.optionalMemberExpression(callee, t.identifier("call"), false, true),
[thisNode, ...args],		[thisNode, ...args],
false,		false,
);		);
}		}
		// a.b(arg1, arg2)
return t.callExpression(t.memberExpression(callee, t.identifier("call")), [		return t.callExpression(t.memberExpression(callee, t.identifier("call")), [
thisNode,		thisNode,
...args,		...args,
]);		]);
}		}
}		}
End of changes. 4 change blocks.
2 lines changed or deleted		29 lines changed or added

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