Add methods for async stack traces to the types (#22)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>

index.d.ts

@@ -65,6 +65,21 @@ export interface CallSite {
 	Returns `true` if this is a constructor call.
 	*/
 	isConstructor(): boolean;
+
+	/**
+	Returns `true` if this call is asynchronous (i.e. `await`, `Promise.all()`, or `Promise.any()`).
+	*/
+	isAsync(): boolean;
+
+	/**
+	Returns `true` if this is an asynchronous call to `Promise.all()`.
+	*/
+	isPromiseAll(): boolean;
+
+	/**
+	Returns the index of the promise element that was followed in `Promise.all()` or `Promise.any()` for async stack traces, or `null` if the `CallSite` is not an asynchronous `Promise.all()` or `Promise.any()` call.
+	*/
+	getPromiseIndex(): number | null;
 }
 
 /**

index.test-d.ts

@@ -16,3 +16,6 @@ expectType<boolean>(callsite.isToplevel());
 expectType<boolean>(callsite.isEval());
 expectType<boolean>(callsite.isNative());
 expectType<boolean>(callsite.isConstructor());
+expectType<boolean>(callsite.isAsync());
+expectType<boolean>(callsite.isPromiseAll());
+expectType<number | null>(callsite.getPromiseIndex());

readme.md

@@ -38,7 +38,11 @@ Returns an array of callsite objects with the following methods:
 - `isEval`: Does this call take place in code defined by a call to `eval`?
 - `isNative`: Is this call in native V8 code?
 - `isConstructor`: Is this a constructor call?
-
+- `isAsync()`: 	Returns `true` if this call is asynchronous (i.e. `await`, `Promise.all()`, or `Promise.any()`).
+- `isPromiseAll()`: Returns `true` if this is an asynchronous call to `Promise.all()`.
+- `getPromiseIndex()`: Returns the index of the promise element that was followed in `Promise.all()` or `Promise.any()` for async stack traces, or `null` if the `CallSite` is not an asynchronous `Promise.all()` or `Promise.any()` call.
+
+
 ---
 
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