From 736e4fb7583dc1f4116808a11077d6e9ff7209a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Juli=C3=A1n=20Espina?= <jedel0124@gmail.com>
Date: Sun, 18 Feb 2024 00:36:49 +0000
Subject: [PATCH] Add example for async module fetches (#3012)

* Add example for async module fetches

* Add error handling to example

* Pin versions of imported modules

* Replae surf with isahc as http client

* Fix yaml parsing
---
 Cargo.lock                       | 518 +++++++++++++++++++++++--------
 examples/Cargo.toml              |   4 +-
 examples/src/bin/module_fetch.rs | 269 ++++++++++++++++
 3 files changed, 664 insertions(+), 127 deletions(-)
 create mode 100644 examples/src/bin/module_fetch.rs

diff --git a/Cargo.lock b/Cargo.lock
index a11a1a1642..dfe4faa468 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,9 +19,9 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "ahash"
-version = "0.7.7"
+version = "0.7.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a824f2aa7e75a0c98c5a504fceb80649e9c35265d44525b5f94de4771a395cd"
+checksum = "891477e0c6a8957309ee5c45a6368af3ae14bb510732d2684ffa19af310920f9"
 dependencies = [
  "getrandom",
  "once_cell",
@@ -30,9 +30,9 @@ dependencies = [
 
 [[package]]
 name = "ahash"
-version = "0.8.7"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77c3a9648d43b9cd48db467b3f87fdd6e146bcc88ab0180006cef2179fe11d01"
+checksum = "42cd52102d3df161c77a887b608d7a4897d7cc112886a9537b738a887a03aaff"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -77,9 +77,9 @@ dependencies = [
 
 [[package]]
 name = "anstyle"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2faccea4cc4ab4a667ce676a30e8ec13922a692c99bb8f5b11f1502c72e04220"
+checksum = "8901269c6307e8d93993578286ac0edf7f195079ffff5ebdeea6a59ffb7e36bc"
 
 [[package]]
 name = "anstyle-parse"
@@ -126,13 +126,24 @@ checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
 
 [[package]]
 name = "async-channel"
-version = "2.1.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ca33f4bc4ed1babef42cad36cc1f51fa88be00420404e5b1e80ab1b18f7678c"
+checksum = "81953c529336010edd6d8e358f886d9581267795c61b19475b71314bffa46d35"
 dependencies = [
  "concurrent-queue",
- "event-listener 4.0.3",
- "event-listener-strategy",
+ "event-listener 2.5.3",
+ "futures-core",
+]
+
+[[package]]
+name = "async-channel"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f28243a43d821d11341ab73c80bed182dc015c514b951616cf79bd4af39af0c3"
+dependencies = [
+ "concurrent-queue",
+ "event-listener 5.0.0",
+ "event-listener-strategy 0.5.0",
  "futures-core",
  "pin-project-lite",
 ]
@@ -146,20 +157,20 @@ dependencies = [
  "async-lock 3.3.0",
  "async-task",
  "concurrent-queue",
- "fastrand",
- "futures-lite",
+ "fastrand 2.0.1",
+ "futures-lite 2.2.0",
  "slab",
 ]
 
 [[package]]
 name = "async-fs"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd1f344136bad34df1f83a47f3fd7f2ab85d75cb8a940af4ccf6d482a84ea01b"
+checksum = "bc19683171f287921f2405677dd2ed2549c3b3bda697a563ebc3a121ace2aba1"
 dependencies = [
  "async-lock 3.3.0",
  "blocking",
- "futures-lite",
+ "futures-lite 2.2.0",
 ]
 
 [[package]]
@@ -172,9 +183,9 @@ dependencies = [
  "cfg-if",
  "concurrent-queue",
  "futures-io",
- "futures-lite",
+ "futures-lite 2.2.0",
  "parking",
- "polling",
+ "polling 3.4.0",
  "rustix",
  "slab",
  "tracing",
@@ -197,7 +208,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d034b430882f8381900d3fe6f0aaa3ad94f2cb4ac519b429692a1bc2dda4ae7b"
 dependencies = [
  "event-listener 4.0.3",
- "event-listener-strategy",
+ "event-listener-strategy 0.4.0",
  "pin-project-lite",
 ]
 
@@ -209,7 +220,7 @@ checksum = "b948000fad4873c1c9339d60f2623323a0cfd3816e5181033c6a5cb68b2accf7"
 dependencies = [
  "async-io",
  "blocking",
- "futures-lite",
+ "futures-lite 2.2.0",
 ]
 
 [[package]]
@@ -218,14 +229,14 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "15c1cd5d253ecac3d3cf15e390fd96bd92a13b1d14497d81abf077304794fb04"
 dependencies = [
- "async-channel",
+ "async-channel 2.2.0",
  "async-io",
  "async-lock 3.3.0",
  "async-signal",
  "blocking",
  "cfg-if",
  "event-listener 4.0.3",
- "futures-lite",
+ "futures-lite 2.2.0",
  "rustix",
  "windows-sys 0.52.0",
 ]
@@ -335,12 +346,12 @@ version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a37913e8dc4ddcc604f0c6d3bf2887c995153af3611de9e23c352b44c1b9118"
 dependencies = [
- "async-channel",
+ "async-channel 2.2.0",
  "async-lock 3.3.0",
  "async-task",
- "fastrand",
+ "fastrand 2.0.1",
  "futures-io",
- "futures-lite",
+ "futures-lite 2.2.0",
  "piper",
  "tracing",
 ]
@@ -399,7 +410,7 @@ dependencies = [
  "fast-float",
  "fixed_decimal",
  "float-cmp",
- "futures-lite",
+ "futures-lite 2.2.0",
  "hashbrown 0.14.3",
  "icu_calendar",
  "icu_casemap",
@@ -458,6 +469,7 @@ dependencies = [
  "boa_parser",
  "boa_runtime",
  "futures-util",
+ "isahc",
  "smol",
  "time 0.3.34",
 ]
@@ -609,9 +621,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.14.0"
+version = "3.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f30e7476521f6f8af1a1c4c0b8cc94f0bee37d91763d0ca2665f299b6cd8aec"
+checksum = "d32a994c2b3ca201d9b263612a374263f05e7adde37c4707f693dcd375076d1f"
 
 [[package]]
 name = "bus"
@@ -626,9 +638,9 @@ dependencies = [
 
 [[package]]
 name = "bytecheck"
-version = "0.6.11"
+version = "0.6.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b6372023ac861f6e6dc89c8344a8f398fb42aaba2b5dbc649ca0c0e9dbcb627"
+checksum = "23cdc57ce23ac53c931e88a43d06d070a6fd142f2617be5855eb75efc9beb1c2"
 dependencies = [
  "bytecheck_derive",
  "ptr_meta",
@@ -637,9 +649,9 @@ dependencies = [
 
 [[package]]
 name = "bytecheck_derive"
-version = "0.6.11"
+version = "0.6.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7ec4c6f261935ad534c0c22dbef2201b45918860eb1c574b972bd213a76af61"
+checksum = "3db406d29fbcd95542e92559bed4d8ad92636d1ca8b3b72ede10b4bcc010e659"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -694,6 +706,12 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
+[[package]]
+name = "castaway"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2698f953def977c68f935bb0dfa959375ad4638570e969e2f1e9f433cbf1af6"
+
 [[package]]
 name = "cc"
 version = "1.0.83"
@@ -738,9 +756,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.0"
+version = "4.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80c21025abd42669a92efc996ef13cfb2c5c627858421ea58d5c3b331a6c134f"
+checksum = "c918d541ef2913577a0f9566e9ce27cb35b6df072075769e0b26cb5a554520da"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -748,9 +766,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.0"
+version = "4.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "458bf1f341769dfcf849846f65dffdf9146daa56bcd2a47cb4e1de9915567c99"
+checksum = "9f3e7391dad68afb0c2ede1bf619f579a3dc9c2ec67f089baa397123a2f3d1eb"
 dependencies = [
  "anstream",
  "anstyle",
@@ -778,9 +796,9 @@ checksum = "98cc8fbded0c607b7ba9dd60cd98df59af97e84d24e49c8557331cfc26d301ce"
 
 [[package]]
 name = "clipboard-win"
-version = "5.0.0"
+version = "5.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c57002a5d9be777c1ef967e33674dac9ebd310d8893e4e3437b14d5f0f6372cc"
+checksum = "3ec832972fefb8cf9313b45a0d1945e29c9c251f1d4c6eafc5fe2124c02d2e81"
 dependencies = [
  "error-code",
 ]
@@ -895,9 +913,9 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.3.2"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
+checksum = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"
 dependencies = [
  "cfg-if",
 ]
@@ -1006,11 +1024,42 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
+[[package]]
+name = "curl"
+version = "0.4.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e2161dd6eba090ff1594084e95fd67aeccf04382ffea77999ea94ed42ec67b6"
+dependencies = [
+ "curl-sys",
+ "libc",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "socket2",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "curl-sys"
+version = "0.4.72+curl-8.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29cbdc8314c447d11e8fd156dcdd031d9e02a7a976163e396b548c03153bc9ea"
+dependencies = [
+ "cc",
+ "libc",
+ "libnghttp2-sys",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "darling"
-version = "0.20.5"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc5d6b04b3fd0ba9926f945895de7d806260a2d7431ba82e7edaecb043c4c6b8"
+checksum = "c376d08ea6aa96aafe61237c7200d1241cb177b7d3a542d791f2d118e9cbb955"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -1018,9 +1067,9 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.20.5"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04e48a959bcd5c761246f5d090ebc2fbf7b9cd527a492b07a67510c108f1e7e3"
+checksum = "33043dcd19068b8192064c704b3f83eb464f91f1ff527b44a4e2b08d9cdb8855"
 dependencies = [
  "fnv",
  "ident_case",
@@ -1031,9 +1080,9 @@ dependencies = [
 
 [[package]]
 name = "darling_macro"
-version = "0.20.5"
+version = "0.20.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d1545d67a2149e1d93b7e5c7752dce5a7426eb5d1357ddcfd89336b94444f77"
+checksum = "c5a91391accf613803c2a9bf9abccdbaa07c54b4244a5b64883f9c3c137c86be"
 dependencies = [
  "darling_core",
  "quote",
@@ -1166,9 +1215,9 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
+checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a"
 
 [[package]]
 name = "elsa"
@@ -1185,6 +1234,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef1a6892d9eef45c8fa6b9e0086428a2cca8491aca8f787c534a3d6d0bcb3ced"
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7268b386296a025e474d5140678f75d6de9493ae55a5d709eeb9dd08149945e1"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "endian-type"
 version = "0.1.2"
@@ -1280,6 +1338,17 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "event-listener"
+version = "5.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b72557800024fabbaa2449dd4bf24e37b93702d457a4d4f2b0dd1f0f039f20c1"
+dependencies = [
+ "concurrent-queue",
+ "parking",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "event-listener-strategy"
 version = "0.4.0"
@@ -1290,6 +1359,16 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "event-listener-strategy"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "feedafcaa9b749175d5ac357452a9d41ea2911da598fde46ce1fe02c37751291"
+dependencies = [
+ "event-listener 5.0.0",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "eyre"
 version = "0.6.12"
@@ -1312,6 +1391,15 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95765f67b4b18863968b4a1bd5bb576f732b29a4a28c7cd84c09fa3e2875f33c"
 
+[[package]]
+name = "fastrand"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51093e27b0797c359783294ca4f0a911c270184cb10f85783b118614a1501be"
+dependencies = [
+ "instant",
+]
+
 [[package]]
 name = "fastrand"
 version = "2.0.1"
@@ -1393,13 +1481,28 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a44623e20b9681a318efdd71c299b6b222ed6f231972bfe2f224ebad6311f0c1"
 
+[[package]]
+name = "futures-lite"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49a9d51ce47660b1e808d3c990b4709f2f415d928835a17dfd16991515c46bce"
+dependencies = [
+ "fastrand 1.9.0",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
+
 [[package]]
 name = "futures-lite"
 version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "445ba825b27408685aaecefd65178908c36c6e96aaf6d8599419d46e624192ba"
 dependencies = [
- "fastrand",
+ "fastrand 2.0.1",
  "futures-core",
  "futures-io",
  "parking",
@@ -1498,7 +1601,7 @@ version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
 dependencies = [
- "ahash 0.7.7",
+ "ahash 0.7.8",
 ]
 
 [[package]]
@@ -1507,7 +1610,7 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 dependencies = [
- "ahash 0.7.7",
+ "ahash 0.7.8",
 ]
 
 [[package]]
@@ -1516,7 +1619,7 @@ version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
 dependencies = [
- "ahash 0.8.7",
+ "ahash 0.8.8",
  "allocator-api2",
 ]
 
@@ -1528,9 +1631,9 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.4"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d3d0e0f38255e7fa3cf31335b3a56f05febd18025f4db5ef7a0cfb4f8da651f"
+checksum = "bd5256b483761cd23699d0da46cc6fd2ee3be420bbe6d020ae4a091e70b7e9fd"
 
 [[package]]
 name = "home"
@@ -1542,34 +1645,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "hoot"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df22a4d90f1b0e65fe3e0d6ee6a4608cc4d81f4b2eb3e670f44bb6bde711e452"
-dependencies = [
- "httparse",
- "log",
-]
-
-[[package]]
-name = "hootbin"
-version = "0.1.1"
+name = "http"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "354e60868e49ea1a39c44b9562ad207c4259dc6eabf9863bf3b0f058c55cfdb2"
+checksum = "8947b1a6fad4393052c7ba1f4cd97bed3e953a95c79c92ad9b051a04611d9fbb"
 dependencies = [
- "fastrand",
- "hoot",
- "serde",
- "serde_json",
- "thiserror",
+ "bytes",
+ "fnv",
+ "itoa",
 ]
 
-[[package]]
-name = "httparse"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
-
 [[package]]
 name = "icu_calendar"
 version = "1.4.0"
@@ -1962,9 +2047,9 @@ checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
 [[package]]
 name = "idna"
-version = "0.3.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e14ddfc70884202db2244c223200c204c2bda1bc6e0998d11b5e024d657209e6"
+checksum = "634d9b1461af396cad843f47fdba5597a4f9e6ddd4bfb6ff5d85028c25cb12f6"
 dependencies = [
  "unicode-bidi",
  "unicode-normalization",
@@ -2003,6 +2088,15 @@ version = "2.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e186cfbae8084e513daff4240b4797e342f988cecda4fb6c939150f96315fd8"
 
+[[package]]
+name = "instant"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "intrusive-collections"
 version = "0.9.6"
@@ -2014,15 +2108,42 @@ dependencies = [
 
 [[package]]
 name = "is-terminal"
-version = "0.4.10"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bad00257d07be169d870ab665980b06cdb366d792ad690bf2e76876dc503455"
+checksum = "f23ff5ef2b80d608d61efee834934d862cd92461afc0560dedf493e4c033738b"
 dependencies = [
  "hermit-abi",
- "rustix",
+ "libc",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "isahc"
+version = "1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "334e04b4d781f436dc315cb1e7515bd96826426345d498149e4bde36b67f8ee9"
+dependencies = [
+ "async-channel 1.9.0",
+ "castaway",
+ "crossbeam-utils",
+ "curl",
+ "curl-sys",
+ "encoding_rs",
+ "event-listener 2.5.3",
+ "futures-lite 1.13.0",
+ "http",
+ "log",
+ "mime",
+ "once_cell",
+ "polling 2.8.0",
+ "slab",
+ "sluice",
+ "tracing",
+ "tracing-futures",
+ "url",
+ "waker-fn",
+]
+
 [[package]]
 name = "itertools"
 version = "0.10.5"
@@ -2069,9 +2190,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.67"
+version = "0.3.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a1d36f1235bc969acba30b7f5990b864423a6068a10f7c90ae8f0112e3a59d1"
+checksum = "406cda4b368d531c842222cf9d2600a9a4acce8d29423695379c6868a143a9ee"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -2110,6 +2231,28 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
+[[package]]
+name = "libnghttp2-sys"
+version = "0.1.9+1.58.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b57e858af2798e167e709b9d969325b6d8e9d50232fcbc494d7d54f976854a64"
+dependencies = [
+ "cc",
+ "libc",
+]
+
+[[package]]
+name = "libz-sys"
+version = "1.1.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "037731f5d3aaa87a5675e895b63ddff1a87624bc29f77004ea829809654e48f6"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.13"
@@ -2237,11 +2380,17 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "miniz_oxide"
-version = "0.7.1"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
+checksum = "9d811f3e15f28568be3407c8e7fdb6514c1cda3cb30683f15b6a1a1dc4ea14a7"
 dependencies = [
  "adler",
 ]
@@ -2306,9 +2455,9 @@ dependencies = [
 
 [[package]]
 name = "num-complex"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ba157ca0885411de85d6ca030ba7e2a83a28636056c7c699b07c8b6f7383214"
+checksum = "23c6602fda94a57c990fe0df199a035d83576b496aa29f4e634a8ac6004e68a6"
 dependencies = [
  "num-traits",
 ]
@@ -2370,9 +2519,9 @@ dependencies = [
 
 [[package]]
 name = "num_threads"
-version = "0.1.6"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
+checksum = "5c7398b9c8b70908f6371f47ed36737907c87c52af34c268fed0bf0ceb92ead9"
 dependencies = [
  "libc",
 ]
@@ -2414,6 +2563,24 @@ version = "11.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
 
+[[package]]
+name = "openssl-probe"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.99"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22e1bf214306098e4832460f797824c05d25aacdf896f64a985fb0fd992454ae"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "owo-colors"
 version = "3.5.0"
@@ -2512,6 +2679,26 @@ dependencies = [
  "siphasher",
 ]
 
+[[package]]
+name = "pin-project"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0302c4a0442c456bd56f841aee5c3bfd17967563f6fadc9ceb9f9c23cf3807e0"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "266c042b60c9c76b8d53061e52b2e0d1116abc57cefc8c5cd671619a56ac3690"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.49",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.13"
@@ -2531,10 +2718,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "668d31b1c4eba19242f2088b2bf3316b82ca31082a8335764db4e083db7485d4"
 dependencies = [
  "atomic-waker",
- "fastrand",
+ "fastrand 2.0.1",
  "futures-io",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
+
 [[package]]
 name = "plotters"
 version = "0.3.5"
@@ -2565,9 +2758,25 @@ dependencies = [
 
 [[package]]
 name = "polling"
-version = "3.3.2"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b2d323e8ca7996b3e23126511a523f7e62924d93ecd5ae73b333815b0eb3dce"
+dependencies = [
+ "autocfg",
+ "bitflags 1.3.2",
+ "cfg-if",
+ "concurrent-queue",
+ "libc",
+ "log",
+ "pin-project-lite",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "polling"
+version = "3.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "545c980a3880efd47b2e262f6a4bb6daad6555cf3367aa9c4e52895f69537a41"
+checksum = "30054e72317ab98eddd8561db0f6524df3367636884b7b21b703e4b280a84a14"
 dependencies = [
  "cfg-if",
  "concurrent-queue",
@@ -2839,9 +3048,9 @@ dependencies = [
 
 [[package]]
 name = "rend"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2571463863a6bd50c32f94402933f03457a3fbaf697a707c5be741e459f08fd"
+checksum = "71fe3824f5629716b1589be05dacd749f6aa084c87e00e016714a8cdfccc997c"
 dependencies = [
  "bytecheck",
 ]
@@ -2862,9 +3071,9 @@ dependencies = [
 
 [[package]]
 name = "rkyv"
-version = "0.7.43"
+version = "0.7.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "527a97cdfef66f65998b5f3b637c26f5a5ec09cc52a3f9932313ac645f4190f5"
+checksum = "5cba464629b3394fc4dbc6f940ff8f5b4ff5c7aef40f29166fd4ad12acbc99c0"
 dependencies = [
  "bitvec",
  "bytecheck",
@@ -2880,9 +3089,9 @@ dependencies = [
 
 [[package]]
 name = "rkyv_derive"
-version = "0.7.43"
+version = "0.7.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5c462a1328c8e67e4d6dbad1eb0355dd43e8ab432c6e227a43657f16ade5033"
+checksum = "a7dddfff8de25e6f62b9d64e6e432bf1c6736c57d20323e15ee10435fbda7c65"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2939,9 +3148,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-pki-types"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a716eb65e3158e90e17cd93d855216e27bde02745ab842f2cab4a39dba1bacf"
+checksum = "048a63e5b3ac996d78d402940b5fa47973d2d080c6c6fffa1d0f19c4445310b7"
 
 [[package]]
 name = "rustls-webpki"
@@ -3015,6 +3224,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "schannel"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbc91545643bcf3a0bbb6569265615222618bdf33ce4ffbbd13c4bbd4c093534"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -3191,6 +3409,17 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "sluice"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d7400c0eff44aa2fcb5e31a5f24ba9716ed90138769e4977a2ba6014ae63eb5"
+dependencies = [
+ "async-channel 1.9.0",
+ "futures-core",
+ "futures-io",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.13.1"
@@ -3212,7 +3441,7 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e635339259e51ef85ac7aa29a1cd991b957047507288697a690e80ab97d07cad"
 dependencies = [
- "async-channel",
+ "async-channel 2.2.0",
  "async-executor",
  "async-fs",
  "async-io",
@@ -3220,7 +3449,17 @@ dependencies = [
  "async-net",
  "async-process",
  "blocking",
- "futures-lite",
+ "futures-lite 2.2.0",
+]
+
+[[package]]
+name = "socket2"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5fac59a5cb5dd637972e5fca70daf0523c9067fcdc4842f053dae04a18f8e9"
+dependencies = [
+ "libc",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -3392,13 +3631,12 @@ checksum = "69758bda2e78f098e4ccb393021a0963bb3442eac05f135c30f61b7370bbafae"
 
 [[package]]
 name = "tempfile"
-version = "3.9.0"
+version = "3.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01ce4141aa927a6d1bd34a041795abd0db1cccba5d5f24b009f694bdf3a1f3fa"
+checksum = "a365e8cd18e44762ef95d87f284f4b5cd04107fec2ff3052bd6a3e6069669e67"
 dependencies = [
  "cfg-if",
- "fastrand",
- "redox_syscall",
+ "fastrand 2.0.1",
  "rustix",
  "windows-sys 0.52.0",
 ]
@@ -3414,9 +3652,9 @@ dependencies = [
 
 [[package]]
 name = "textwrap"
-version = "0.16.0"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
+checksum = "23d434d3f8967a09480fb04132ebe0a3e088c173e6d0ee7897abbdf4eab0f8b9"
 dependencies = [
  "smawk",
  "unicode-linebreak",
@@ -3592,7 +3830,7 @@ dependencies = [
  "serde",
  "serde_spanned",
  "toml_datetime",
- "toml_edit 0.22.4",
+ "toml_edit 0.22.6",
 ]
 
 [[package]]
@@ -3612,20 +3850,20 @@ checksum = "6a8534fd7f78b5405e860340ad6575217ce99f38d4d5c8f2442cb5ecb50090e1"
 dependencies = [
  "indexmap 2.2.3",
  "toml_datetime",
- "winnow",
+ "winnow 0.5.40",
 ]
 
 [[package]]
 name = "toml_edit"
-version = "0.22.4"
+version = "0.22.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c9ffdf896f8daaabf9b66ba8e77ea1ed5ed0f72821b398aba62352e95062951"
+checksum = "2c1b5fd4128cc8d3e0cb74d4ed9a9cc7c7284becd4df68f5f940e1ad123606f6"
 dependencies = [
  "indexmap 2.2.3",
  "serde",
  "serde_spanned",
  "toml_datetime",
- "winnow",
+ "winnow 0.6.1",
 ]
 
 [[package]]
@@ -3671,6 +3909,16 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "tracing-futures"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97d095ae15e245a057c8e8451bab9b3ee1e1f68e9ba2b4fbc18d0ac5237835f2"
+dependencies = [
+ "pin-project",
+ "tracing",
+]
+
 [[package]]
 name = "tracing-subscriber"
 version = "0.3.18"
@@ -3736,9 +3984,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-segmentation"
-version = "1.10.1"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1dd624098567895118886609431a7c3b8f516e41d30e0643f03d94592a147e36"
+checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
 
 [[package]]
 name = "unicode-width"
@@ -3760,13 +4008,12 @@ checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
 [[package]]
 name = "ureq"
-version = "2.9.4"
+version = "2.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "399dd89e2af196ae4f83a47bb37a1455e664fe2fed97b3ae68a1c4a3f8216e76"
+checksum = "11f214ce18d8b2cbe84ed3aa6486ed3f5b285cf8d8fbdbce9f3f767a724adc35"
 dependencies = [
  "base64",
  "flate2",
- "hootbin",
  "log",
  "once_cell",
  "rustls",
@@ -3778,9 +4025,9 @@ dependencies = [
 
 [[package]]
 name = "url"
-version = "2.3.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d68c799ae75762b8c3fe375feb6600ef5602c883c5d21eb51c09f22b83c4643"
+checksum = "31e6302e3bb753d46e83516cae55ae196fc0c309407cf11ab35cc51a4c2a4633"
 dependencies = [
  "form_urlencoded",
  "idna",
@@ -3817,12 +4064,24 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
+[[package]]
+name = "waker-fn"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3c4517f54858c779bbcbf228f4fca63d121bf85fbecb2dc578cdf4a39395690"
+
 [[package]]
 name = "walkdir"
 version = "2.4.0"
@@ -4171,9 +4430,9 @@ checksum = "718ed7c55c2add6548cca3ddd6383d738cd73b892df400e96b9aa876f0141d7a"
 
 [[package]]
 name = "web-sys"
-version = "0.3.67"
+version = "0.3.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58cd2333b6e0be7a39605f0e255892fd7418a682d8da8fe042fe25128794d2ed"
+checksum = "96565907687f7aceb35bc5fc03770a8a0471d82e479f25832f54a0e3f4b28446"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -4418,9 +4677,18 @@ checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
 [[package]]
 name = "winnow"
-version = "0.5.37"
+version = "0.5.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "winnow"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7cad8365489051ae9f054164e459304af2e7e9bb407c958076c8bf4aef52da5"
+checksum = "d90f4e0f530c4c69f62b80d839e9ef3855edc9cba471a160c4d692deed62b401"
 dependencies = [
  "memchr",
 ]
diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 78ba86f61a..7653b3b751 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -10,7 +10,7 @@ repository.workspace = true
 rust-version.workspace = true
 
 [dependencies]
-boa_engine.workspace = true
+boa_engine = { workspace = true, features = ["annex-b"] }
 boa_ast.workspace = true
 boa_interner.workspace = true
 boa_gc.workspace = true
@@ -19,7 +19,7 @@ boa_runtime.workspace = true
 time.workspace = true
 smol = "2.0.0"
 futures-util = "0.3.30"
-
+isahc = "1.7.2"
 
 # use explicit lints for examples, since we don't need to lint for docs
 [lints.rust]
diff --git a/examples/src/bin/module_fetch.rs b/examples/src/bin/module_fetch.rs
new file mode 100644
index 0000000000..9e1adb57ca
--- /dev/null
+++ b/examples/src/bin/module_fetch.rs
@@ -0,0 +1,269 @@
+use std::{
+    cell::{Cell, RefCell},
+    collections::VecDeque,
+    rc::Rc,
+};
+
+use boa_engine::{
+    builtins::promise::PromiseState,
+    job::{FutureJob, JobQueue, NativeJob},
+    js_string,
+    module::ModuleLoader,
+    string::utf16,
+    Context, JsNativeError, JsResult, JsString, JsValue, Module,
+};
+use boa_parser::Source;
+use futures_util::{stream::FuturesUnordered, StreamExt};
+use isahc::{
+    config::{Configurable, RedirectPolicy},
+    AsyncReadResponseExt, Request, RequestExt,
+};
+use smol::{future, LocalExecutor};
+
+// Most of the boilerplate is taken from the `futures.rs` example.
+// This file only explains what is exclusive of async module loading.
+
+#[derive(Debug, Default)]
+struct HttpModuleLoader;
+
+impl ModuleLoader for HttpModuleLoader {
+    fn load_imported_module(
+        &self,
+        _referrer: boa_engine::module::Referrer,
+        specifier: JsString,
+        finish_load: Box<dyn FnOnce(JsResult<Module>, &mut Context)>,
+        context: &mut Context,
+    ) {
+        let url = specifier.to_std_string_escaped();
+
+        let fetch = async move {
+            // Adding some prints to show the non-deterministic nature of the async fetches.
+            // Try to run the example several times to see how sometimes the fetches start in order
+            // but finish in disorder.
+            println!("Fetching `{url}`...");
+            // This could also retry fetching in case there's an error while requesting the module.
+            let body: Result<_, isahc::Error> = async {
+                let mut response = Request::get(&url)
+                    .redirect_policy(RedirectPolicy::Limit(5))
+                    .body(())?
+                    .send_async()
+                    .await?;
+
+                Ok(response.text().await?)
+            }
+            .await;
+            println!("Finished fetching `{url}`");
+
+            // Since the async context cannot take the `context` by ref, we have to continue
+            // parsing inside a new `NativeJob` that will be enqueued into the promise job queue.
+            NativeJob::new(move |context| -> JsResult<JsValue> {
+                let body = match body {
+                    Ok(body) => body,
+                    Err(err) => {
+                        // On error we always call `finish_load` to notify the load promise about the
+                        // error.
+                        finish_load(
+                            Err(JsNativeError::typ().with_message(err.to_string()).into()),
+                            context,
+                        );
+
+                        // Just returns anything to comply with `NativeJob::new`'s signature.
+                        return Ok(JsValue::undefined());
+                    }
+                };
+
+                // Could also add a path if needed.
+                let source = Source::from_bytes(body.as_bytes());
+
+                let module = Module::parse(source, None, context);
+
+                // We don't do any error handling, `finish_load` takes care of that for us.
+                finish_load(module, context);
+
+                // Also needed to match `NativeJob::new`.
+                Ok(JsValue::undefined())
+            })
+        };
+
+        // Just enqueue the future for now. We'll advance all the enqueued futures inside our custom
+        // `JobQueue`.
+        context
+            .job_queue()
+            .enqueue_future_job(Box::pin(fetch), context)
+    }
+}
+
+fn main() -> JsResult<()> {
+    // A simple snippet that imports modules from the web instead of the file system.
+    const SRC: &str = r#"
+        import YAML from 'https://esm.run/yaml@2.3.4';
+        import fromAsync from 'https://esm.run/array-from-async@3.0.0';
+        import { Base64 } from 'https://esm.run/js-base64@3.7.6';
+
+        const data = `
+            object:
+                array: ["hello", "world"]
+                key: "value"
+        `;
+
+        const object = YAML.parse(data).object;
+
+        let result = await fromAsync([
+            Promise.resolve(Base64.encode(object.array[0])),
+            Promise.resolve(Base64.encode(object.array[1])),
+        ]);
+
+        export default result;
+    "#;
+
+    let queue = Rc::new(Queue::new(LocalExecutor::new()));
+    let context = &mut Context::builder()
+        .job_queue(queue)
+        // NEW: sets the context module loader to our custom loader
+        .module_loader(Rc::new(HttpModuleLoader))
+        .build()?;
+
+    let module = Module::parse(Source::from_bytes(SRC.as_bytes()), None, context)?;
+
+    // Calling `Module::load_link_evaluate` takes care of having to define promise handlers for
+    // `Module::load` and `Module::evaluate`.
+    let promise = module.load_link_evaluate(context);
+
+    // Important to call `Context::run_jobs`, or else all the futures and promises won't be
+    // pushed forward by the job queue.
+    context.run_jobs();
+
+    match promise.state() {
+        // Our job queue guarantees that all promises and futures are finished after returning
+        // from `Context::run_jobs`.
+        // Some other job queue designs only execute a "microtick" or a single pass through the
+        // pending promises and futures. In that case, you can pass this logic as a promise handler
+        // for `promise` instead.
+        PromiseState::Pending => panic!("module didn't execute!"),
+        // All modules after successfully evaluating return `JsValue::undefined()`.
+        PromiseState::Fulfilled(v) => {
+            assert_eq!(v, JsValue::undefined())
+        }
+        PromiseState::Rejected(err) => {
+            panic!("{}", err.display());
+        }
+    }
+
+    let default = module
+        .namespace(context)
+        .get(js_string!("default"), context)?;
+
+    // `default` should contain the result of our calculations.
+    let default = default
+        .as_object()
+        .ok_or_else(|| JsNativeError::typ().with_message("default export was not an object"))?;
+
+    assert_eq!(
+        default
+            .get(0, context)?
+            .as_string()
+            .ok_or_else(|| JsNativeError::typ().with_message("array element was not a string"))?,
+        utf16!("aGVsbG8=")
+    );
+    assert_eq!(
+        default
+            .get(1, context)?
+            .as_string()
+            .ok_or_else(|| JsNativeError::typ().with_message("array element was not a string"))?,
+        utf16!("d29ybGQ=")
+    );
+
+    Ok(())
+}
+
+// Taken from the `futures.rs` example.
+struct Queue<'a> {
+    executor: LocalExecutor<'a>,
+    futures: RefCell<FuturesUnordered<FutureJob>>,
+    jobs: RefCell<VecDeque<NativeJob>>,
+}
+
+impl<'a> Queue<'a> {
+    fn new(executor: LocalExecutor<'a>) -> Self {
+        Self {
+            executor,
+            futures: RefCell::default(),
+            jobs: RefCell::default(),
+        }
+    }
+}
+
+impl JobQueue for Queue<'_> {
+    fn enqueue_promise_job(&self, job: NativeJob, _context: &mut Context) {
+        self.jobs.borrow_mut().push_back(job);
+    }
+
+    fn enqueue_future_job(&self, future: FutureJob, _context: &mut Context) {
+        self.futures.borrow().push(future)
+    }
+
+    fn run_jobs(&self, context: &mut Context) {
+        // Early return in case there were no jobs scheduled.
+        if self.jobs.borrow().is_empty() && self.futures.borrow().is_empty() {
+            return;
+        }
+
+        let context = RefCell::new(context);
+
+        future::block_on(self.executor.run(async move {
+            // Used to sync the finalization of both tasks
+            let finished = Cell::new(0b00u8);
+
+            let fqueue = async {
+                loop {
+                    if self.futures.borrow().is_empty() {
+                        finished.set(finished.get() | 0b01);
+                        if finished.get() >= 0b11 {
+                            // All possible futures and jobs were completed. Exit.
+                            return;
+                        }
+                        // All possible jobs were completed, but `jqueue` could have
+                        // pending jobs. Yield to the executor to try to progress on
+                        // `jqueue` until we have more pending futures.
+                        future::yield_now().await;
+                        continue;
+                    }
+                    finished.set(finished.get() & 0b10);
+
+                    let futures = &mut std::mem::take(&mut *self.futures.borrow_mut());
+                    while let Some(job) = futures.next().await {
+                        self.enqueue_promise_job(job, &mut context.borrow_mut());
+                    }
+                }
+            };
+
+            let jqueue = async {
+                loop {
+                    if self.jobs.borrow().is_empty() {
+                        finished.set(finished.get() | 0b10);
+                        if finished.get() >= 0b11 {
+                            // All possible futures and jobs were completed. Exit.
+                            return;
+                        }
+                        // All possible jobs were completed, but `fqueue` could have
+                        // pending futures. Yield to the executor to try to progress on
+                        // `fqueue` until we have more pending jobs.
+                        future::yield_now().await;
+                        continue;
+                    };
+                    finished.set(finished.get() & 0b01);
+
+                    let jobs = std::mem::take(&mut *self.jobs.borrow_mut());
+                    for job in jobs {
+                        if let Err(e) = job.call(&mut context.borrow_mut()) {
+                            eprintln!("Uncaught {e}");
+                        }
+                        future::yield_now().await;
+                    }
+                }
+            };
+
+            future::zip(fqueue, jqueue).await;
+        }))
+    }
+}