refactor: move transpiling to deno_ast (#13332)

16 files changed, 302 insertions, 1642 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 6a4a971df..27541d0be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -352,9 +352,9 @@ checksum = "b4ae4235e6dac0694637c763029ecea1a2ec9e4e06ec2729bd21ba4d9c863eb7"
 
 [[package]]
 name = "bumpalo"
-version = "3.8.0"
+version = "3.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f1e260c3a9040a7c19a12468758f4c16f31a81a1fe087482be9570ec864bb6c"
+checksum = "a4a45a46ab1f2412e53d3a0ade76ffad2025804294569aae387231a0cd6e0899"
 
 [[package]]
 name = "byteorder"
@@ -543,9 +543,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+checksum = "e54ea8bc3fb1ee042f5aace6e3c6e025d3874866da222930f70ce62aceba0bfa"
 dependencies = [
  "cfg-if 1.0.0",
  "crossbeam-utils",
@@ -553,9 +553,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.5"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+checksum = "cfcae03edb34f947e64acdb1c33ec169824e20657e9ecb61cef6c8c74dcb8120"
 dependencies = [
  "cfg-if 1.0.0",
  "lazy_static",
@@ -763,10 +763,12 @@ dependencies = [
 
 [[package]]
 name = "deno_ast"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72a3eb87c6fddf68e02f7438728a611ff6ca84a644fc00d3b9ad5a006e212484"
+checksum = "e81ceec755f9e4e270e8d7ef4ade1921eddc1717dea092c726b088f9c074721b"
 dependencies = [
+ "anyhow",
+ "base64 0.13.0",
  "data-url",
  "dprint-swc-ecma-ast-view",
  "serde",
@@ -855,9 +857,9 @@ dependencies = [
 
 [[package]]
 name = "deno_doc"
-version = "0.25.0"
+version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3fd524cf36cae45b06de577f8f18b6ef786b56a3840fb721923ccddeeb09833"
+checksum = "73ff82ae22a4012a843799f5baadda95ddc67cc3bed21fe5ebcda2c5cff768a1"
 dependencies = [
  "cfg-if 1.0.0",
  "deno_ast",
@@ -901,9 +903,9 @@ dependencies = [
 
 [[package]]
 name = "deno_graph"
-version = "0.17.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5eda28d50fc84d2b1774829316dcecdce1d41f0923b3a174f88cd599cafd529"
+checksum = "5b2a21feedd2fde8846a8b94855498ff7e1c59bdf972a06a6faf228999c1f7fd"
 dependencies = [
  "anyhow",
  "cfg-if 1.0.0",
@@ -937,9 +939,9 @@ dependencies = [
 
 [[package]]
 name = "deno_lint"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90b4b3dfb590568c6cb9ff24d4fb36645b47e480059517420fcb5d19758f75c9"
+checksum = "6cf1715d924e6fdf45847868b31742ed305fb6270747c6046dc3c19f67c0d2f5"
 dependencies = [
  "anyhow",
  "deno_ast",
@@ -1212,9 +1214,9 @@ dependencies = [
 
 [[package]]
 name = "dprint-plugin-typescript"
-version = "0.61.0"
+version = "0.62.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2cf0922de1556135f425df4de9968fd0b8e424eebc7fdb4001058c678bde475"
+checksum = "b3e9b87d22638bc08075c827ae568e02b07fbf262142db90895383bac3f5a67e"
 dependencies = [
  "anyhow",
  "deno_ast",
@@ -1226,9 +1228,9 @@ dependencies = [
 
 [[package]]
 name = "dprint-swc-ecma-ast-view"
-version = "0.47.0"
+version = "0.48.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbbf1d058db8ad7c9790db7dbe852d0cbddd2a314e592387232fa3db02fe0771"
+checksum = "3d189ada8940380247d23993d0ecf13e8b3b5b3a948dffa6fb7291fbd75cf961"
 dependencies = [
  "bumpalo",
  "num-bigint",
@@ -1498,9 +1500,9 @@ dependencies = [
 
 [[package]]
 name = "fsevent-sys"
-version = "4.0.0"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c0e564d24da983c053beff1bb7178e237501206840a3e6bf4e267b9e8ae734a"
+checksum = "76ee7a02da4d231650c7cea31349b889be2f45ddb3ef3032d2ec8185f6313fd2"
 dependencies = [
  "libc",
 ]
@@ -1729,9 +1731,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.9"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f072413d126e57991455e0a922b31e4c8ba7c2ffbebf6b78b4f8521397d65cd"
+checksum = "0c9de88456263e249e241fcd211d3954e2c9b0ef7ccfc235a444eb367cae3689"
 dependencies = [
  "bytes",
  "fnv",
@@ -1918,9 +1920,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
 dependencies = [
  "autocfg 1.0.1",
  "hashbrown",
@@ -1985,9 +1987,9 @@ checksum = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"
 
 [[package]]
 name = "is-macro"
-version = "0.1.9"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a322dd16d960e322c3d92f541b4c1a4f0a2e81e1fdeee430d8cecc8b72e8015f"
+checksum = "94b2c46692aee0d1b3aad44e781ac0f0e7db42ef27adaa0a877b627040019813"
 dependencies = [
  "Inflector",
  "pmutil",
@@ -2361,9 +2363,9 @@ dependencies = [
 
 [[package]]
 name = "netif"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c9e642845c332c335e3125759b10145a972c1f413cb48cd6d7b96e81821f281"
+checksum = "c4c80b95aa77797835fccdc22f4c27458c0b04928cf9ab486e826e1dccf36745"
 dependencies = [
  "libc",
  "winapi 0.3.9",
@@ -2528,9 +2530,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "openssl-probe"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28988d872ab76095a6e6ac88d99b54fd267702734fd7ffe610ca27f533ddb95a"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "os_pipe"
@@ -3088,9 +3090,9 @@ checksum = "f1382d1f0a252c4bf97dc20d979a2fdd05b024acd7c2ed0f7595d7817666a157"
 
 [[package]]
 name = "reqwest"
-version = "0.11.8"
+version = "0.11.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c4e0a76dc12a116108933f6301b95e83634e0c47b0afbed6abbaa0601e99258"
+checksum = "87f242f1488a539a79bac6dbe7c8609ae43b7914b7736210f239a37cccb32525"
 dependencies = [
  "async-compression",
  "base64 0.13.0",
@@ -3098,6 +3100,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
+ "h2",
  "http",
  "http-body",
  "hyper",
@@ -3482,9 +3485,9 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.9.8"
+version = "0.9.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b69f9a4c9740d74c5baa3fd2e547f9525fa8088a8a958e0ca2409a514e33f5fa"
+checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
 dependencies = [
  "block-buffer",
  "cfg-if 1.0.0",
@@ -3694,9 +3697,9 @@ dependencies = [
 
 [[package]]
 name = "swc_bundler"
-version = "0.96.0"
+version = "0.101.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4df8e45a1d523403a5f256fca9ab216bcccbd5883b7aba6f8b5a5c1e69bcd31"
+checksum = "7e4ba80b219e651c3eeb830abc7caa391e55c9ff1fd4370e5723a2cbd752ea93"
 dependencies = [
  "ahash",
  "anyhow",
@@ -3726,9 +3729,9 @@ dependencies = [
 
 [[package]]
 name = "swc_common"
-version = "0.16.0"
+version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "757c84b893b4b16bbbe983acc8262f52fe5efd9b87b362f4196549e4f798c0a0"
+checksum = "015b0c14152981b1590d05c6073ac602008e5fc414b7cc4b2bbae60220d27ff2"
 dependencies = [
  "ahash",
  "ast_node",
@@ -3753,9 +3756,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_ast"
-version = "0.62.0"
+version = "0.65.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d00427977875928f37e92e260f226a91783812aaf3713562526a920befd6aa39"
+checksum = "accaa4affdc0e2f3693c9d3b325ad97e9d9534e01abe5564b9b85c5d1cacdcbb"
 dependencies = [
  "is-macro",
  "num-bigint",
@@ -3768,9 +3771,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_codegen"
-version = "0.86.0"
+version = "0.89.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "025d9bb2d836fac57bf5579f7049ff96e702632c0affb362234b26d587f996d1"
+checksum = "667e9174226b2228b5ddc850f59db0b2689652efa0b5d5d3c072d1caba256cb7"
 dependencies = [
  "bitflags",
  "memchr",
@@ -3800,9 +3803,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_dep_graph"
-version = "0.55.0"
+version = "0.58.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a3368bafec3d3dd3f19e2108551b9d6dd1362c515cd138a652aff9f911409316"
+checksum = "bf46c8d3c4b34072e2e958b259781d9a94a00f23806c402eba40b8e9865f9dda"
 dependencies = [
  "swc_atoms",
  "swc_common",
@@ -3812,9 +3815,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_loader"
-version = "0.26.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61e4a236d9fc809d88e8d346381e72936dc8a4e4a2418d1f66ea8acb6ed298be"
+checksum = "764c8e31524d35722aacdbee51e132424798365ddfd75deb81634f342c5fdce3"
 dependencies = [
  "ahash",
  "anyhow",
@@ -3825,9 +3828,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_parser"
-version = "0.84.0"
+version = "0.87.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55406a1e109a7c4ad281ee4fe295249553b7fcbfa43b27f7b53d6112b2924af4"
+checksum = "3c454cbd95ab84fd9ffc5059cffad80b7711bd4b8732257a7c83f4b2c809dfa1"
 dependencies = [
  "either",
  "enum_kind",
@@ -3845,9 +3848,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms"
-version = "0.106.1"
+version = "0.111.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4069c5474cfb5f786fa20dd013ab8b8b73f35522f82372e71c2307a2b904e38"
+checksum = "ae472031803e9fddb9f9141edc3ec0c3bff5904cd08e0509f2ad88689678ce7c"
 dependencies = [
  "swc_atoms",
  "swc_common",
@@ -3864,13 +3867,14 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_base"
-version = "0.52.1"
+version = "0.56.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec358dadefdc2a834a623192bc972df7a74443a80b73a538495ebbf652bfc97d"
+checksum = "74824b2df0931ed3d84201e50138b68d1dc78a802aef9dbdec4ea0ffcea8a28b"
 dependencies = [
  "once_cell",
  "phf",
  "scoped-tls",
+ "serde",
  "smallvec",
  "swc_atoms",
  "swc_common",
@@ -3883,9 +3887,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_classes"
-version = "0.39.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19ad7eb4fb019fc608ccff8a2ceffb7548ec94018cc2f523367b137b90b1d6a6"
+checksum = "8a972a157b9104b7979a34556841f93e98d18d70b83c9e625b35dd390b57e59f"
 dependencies = [
  "swc_atoms",
  "swc_common",
@@ -3910,9 +3914,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_optimization"
-version = "0.76.0"
+version = "0.81.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb91bd9aea0f0dd57688340306203ec776ed2fd1e2b75871b7135566c5a4e82a"
+checksum = "3af299ad73dc689a0516950613a9262203feff76adc3f2f14307a12bdd5835c9"
 dependencies = [
  "ahash",
  "dashmap",
@@ -3932,9 +3936,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_proposal"
-version = "0.68.0"
+version = "0.73.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6520f06130f57292dfd986c0484034f37f6a129699a139010a818e4cd164975"
+checksum = "fe1cf222cfe757700ffea622589990b1b0ef0a18c85ffe6e8442ba515257aa98"
 dependencies = [
  "either",
  "serde",
@@ -3952,9 +3956,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_react"
-version = "0.70.0"
+version = "0.75.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ef966c28b0f13412c546ebd777e61b197b2ef8c9214bee8393f25d0027adfef"
+checksum = "cee01d3f5c0f424a199a4d13fc6fbe14cfd88ccff0b778558311075477e25310"
 dependencies = [
  "ahash",
  "base64 0.13.0",
@@ -3977,9 +3981,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_transforms_typescript"
-version = "0.72.0"
+version = "0.77.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ca12da83a3ce8fa61defa77256f11bf63048830d45b2e3a67fb7208d5dfa8b5"
+checksum = "50560b92ecbd43ee4dea19ae763d0bde8d753c8401d76115c714cfb51f838e76"
 dependencies = [
  "serde",
  "swc_atoms",
@@ -3994,9 +3998,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_utils"
-version = "0.59.0"
+version = "0.63.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4684e029d1c06cd3ee86e83a3cffb7a90acb421b58204ed72c8e3719bc88eca5"
+checksum = "a05826c1edd7d58ec97af8be523c9c15e24e6dc4c1762435bb12573d716dd7ba"
 dependencies = [
  "once_cell",
  "swc_atoms",
@@ -4008,9 +4012,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecma_visit"
-version = "0.48.1"
+version = "0.51.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "decbd767e2630eb650cd97d49c74e4ce32beb9daeccd9602f52c48f32436006c"
+checksum = "95cf6f39cd1c3682885125955e881bec872e0c1743eb1a31735da69b894f065e"
 dependencies = [
  "num-bigint",
  "swc_atoms",
@@ -4022,9 +4026,9 @@ dependencies = [
 
 [[package]]
 name = "swc_ecmascript"
-version = "0.103.2"
+version = "0.108.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c47c72500ac5300ab11d5ede08c9bab878ac065c8a9169d34f2f7f28b1ec19f2"
+checksum = "36c59346416fc6010a59c0fa10f19b8ba9a45bed7199005b7c452b68400fc345"
 dependencies = [
  "swc_ecma_ast",
  "swc_ecma_codegen",
@@ -4049,9 +4053,9 @@ dependencies = [
 
 [[package]]
 name = "swc_fast_graph"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4857942a9c79e9836f51dca4ca0df89f354acfedc573708006c4365bad07083c"
+checksum = "1d53bbcbb4b055c547f283af1f84211f425b95ac59e02d8b70c94b8a63a4704f"
 dependencies = [
  "ahash",
  "indexmap",
@@ -4061,9 +4065,9 @@ dependencies = [
 
 [[package]]
 name = "swc_graph_analyzer"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c5f079d9350dee80a59ac2f8be9867ed0a8ac9fb0023461b173e9e42168ff30"
+checksum = "83b42a8b13068dd90dec954ec44576d5922914687bc34277f3b0f8d0bbeb4e83"
 dependencies = [
  "ahash",
  "auto_impl",
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 66fa281ee..10db61bf7 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -40,11 +40,11 @@ winapi = "=0.3.9"
 winres = "=0.1.11"
 
 [dependencies]
-deno_ast = { version = "0.8.0", features = ["bundler", "codegen", "dep_graph", "module_specifier", "proposal", "react", "sourcemap", "transforms", "typescript", "view", "visit"] }
+deno_ast = { version = "0.9.0", features = ["bundler", "codegen", "dep_graph", "module_specifier", "proposal", "react", "sourcemap", "transforms", "transpiling", "typescript", "view", "visit"] }
 deno_core = { version = "0.113.0", path = "../core" }
-deno_doc = "0.25.0"
-deno_graph = "0.17.0"
-deno_lint = { version = "0.21.0", features = ["docs"] }
+deno_doc = "0.26.0"
+deno_graph = "0.18.0"
+deno_lint = { version = "0.22.0", features = ["docs"] }
 deno_runtime = { version = "0.39.0", path = "../runtime" }
 
 atty = "=0.2.14"
@@ -56,7 +56,7 @@ data-url = "=0.1.1"
 dissimilar = "=1.0.2"
 dprint-plugin-json = "=0.14.0"
 dprint-plugin-markdown = "=0.12.0"
-dprint-plugin-typescript = "=0.61.0"
+dprint-plugin-typescript = "=0.62.0"
 encoding_rs = "=0.8.29"
 env_logger = "=0.8.4"
 fancy-regex = "=0.7.1"
diff --git a/cli/ast/bundle_hook.rs b/cli/ast/bundle_hook.rs
deleted file mode 100644
index a2dd658e3..000000000
--- a/cli/ast/bundle_hook.rs
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
-use deno_ast::swc::bundler::Hook;
-use deno_ast::swc::bundler::ModuleRecord;
-use deno_ast::swc::common::Span;
-use deno_core::error::AnyError;
-
-/// This contains the logic for Deno to rewrite the `import.meta` when bundling.
-pub struct BundleHook;
-
-impl Hook for BundleHook {
-  fn get_import_meta_props(
-    &self,
-    span: Span,
-    module_record: &ModuleRecord,
-  ) -> Result<Vec<deno_ast::swc::ast::KeyValueProp>, AnyError> {
-    use deno_ast::swc::ast;
-
-    Ok(vec![
-      ast::KeyValueProp {
-        key: ast::PropName::Ident(ast::Ident::new("url".into(), span)),
-        value: Box::new(ast::Expr::Lit(ast::Lit::Str(ast::Str {
-          span,
-          value: module_record.file_name.to_string().into(),
-          kind: ast::StrKind::Synthesized,
-          has_escape: false,
-        }))),
-      },
-      ast::KeyValueProp {
-        key: ast::PropName::Ident(ast::Ident::new("main".into(), span)),
-        value: Box::new(if module_record.is_entry {
-          ast::Expr::Member(ast::MemberExpr {
-            span,
-            obj: ast::ExprOrSuper::Expr(Box::new(ast::Expr::MetaProp(
-              ast::MetaPropExpr {
-                meta: ast::Ident::new("import".into(), span),
-                prop: ast::Ident::new("meta".into(), span),
-              },
-            ))),
-            prop: Box::new(ast::Expr::Ident(ast::Ident::new(
-              "main".into(),
-              span,
-            ))),
-            computed: false,
-          })
-        } else {
-          ast::Expr::Lit(ast::Lit::Bool(ast::Bool { span, value: false }))
-        }),
-      },
-    ])
-  }
-}
diff --git a/cli/ast/mod.rs b/cli/ast/mod.rs
deleted file mode 100644
index 419471daa..000000000
--- a/cli/ast/mod.rs
+++ /dev/null
@@ -1,919 +0,0 @@
-// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
-
-use crate::config_file;
-use crate::text_encoding::strip_bom;
-
-use deno_ast::get_syntax;
-use deno_ast::swc::ast::Module;
-use deno_ast::swc::ast::Program;
-use deno_ast::swc::codegen::text_writer::JsWriter;
-use deno_ast::swc::codegen::Node;
-use deno_ast::swc::common::chain;
-use deno_ast::swc::common::comments::SingleThreadedComments;
-use deno_ast::swc::common::errors::Diagnostic as SwcDiagnostic;
-use deno_ast::swc::common::BytePos;
-use deno_ast::swc::common::FileName;
-use deno_ast::swc::common::Globals;
-use deno_ast::swc::common::Mark;
-use deno_ast::swc::common::SourceMap;
-use deno_ast::swc::common::Spanned;
-use deno_ast::swc::parser::error::Error as SwcError;
-use deno_ast::swc::parser::error::SyntaxError;
-use deno_ast::swc::parser::lexer::Lexer;
-use deno_ast::swc::parser::StringInput;
-use deno_ast::swc::transforms::fixer;
-use deno_ast::swc::transforms::helpers;
-use deno_ast::swc::transforms::hygiene;
-use deno_ast::swc::transforms::pass::Optional;
-use deno_ast::swc::transforms::proposals;
-use deno_ast::swc::transforms::react;
-use deno_ast::swc::transforms::resolver_with_mark;
-use deno_ast::swc::transforms::typescript;
-use deno_ast::swc::visit::FoldWith;
-use deno_ast::Diagnostic;
-use deno_ast::LineAndColumnDisplay;
-use deno_ast::MediaType;
-use deno_ast::ParsedSource;
-use deno_core::anyhow::anyhow;
-use deno_core::error::AnyError;
-use deno_core::resolve_url_or_path;
-use deno_core::serde_json;
-use deno_core::ModuleSpecifier;
-use std::cell::RefCell;
-use std::fmt;
-use std::rc::Rc;
-
-mod bundle_hook;
-mod transforms;
-
-pub use bundle_hook::BundleHook;
-
-#[derive(Debug, Clone, Eq, PartialEq)]
-pub struct Location {
-  pub specifier: String,
-  pub line: usize,
-  pub col: usize,
-}
-
-impl Location {
-  pub fn from_pos(parsed_source: &ParsedSource, pos: BytePos) -> Self {
-    Location::from_line_and_column(
-      parsed_source.specifier().to_string(),
-      parsed_source.source().line_and_column_index(pos),
-    )
-  }
-
-  pub fn from_line_and_column(
-    specifier: String,
-    line_and_column: deno_ast::LineAndColumnIndex,
-  ) -> Self {
-    Location {
-      specifier,
-      line: line_and_column.line_index + 1,
-      col: line_and_column.column_index,
-    }
-  }
-}
-
-impl From<deno_ast::swc::common::Loc> for Location {
-  fn from(swc_loc: deno_ast::swc::common::Loc) -> Self {
-    use deno_ast::swc::common::FileName::*;
-
-    let filename = match &swc_loc.file.name {
-      Real(path_buf) => path_buf.to_string_lossy().to_string(),
-      Custom(str_) => str_.to_string(),
-      Url(url) => url.to_string(),
-      _ => panic!("invalid filename"),
-    };
-
-    Location {
-      specifier: filename,
-      line: swc_loc.line,
-      col: swc_loc.col.0,
-    }
-  }
-}
-
-impl From<Location> for ModuleSpecifier {
-  fn from(loc: Location) -> Self {
-    resolve_url_or_path(&loc.specifier).unwrap()
-  }
-}
-
-impl std::fmt::Display for Location {
-  fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-    write!(f, "{}:{}:{}", self.specifier, self.line, self.col)
-  }
-}
-
-#[derive(Debug)]
-pub struct Diagnostics(pub Vec<Diagnostic>);
-
-impl std::error::Error for Diagnostics {}
-
-impl fmt::Display for Diagnostics {
-  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-    for (i, diagnostic) in self.0.iter().enumerate() {
-      if i > 0 {
-        write!(f, "\n\n")?;
-      }
-
-      write!(f, "{}", diagnostic)?
-    }
-
-    Ok(())
-  }
-}
-
-#[derive(Debug, Clone)]
-pub enum ImportsNotUsedAsValues {
-  Remove,
-  Preserve,
-  Error,
-}
-
-/// Options which can be adjusted when transpiling a module.
-#[derive(Debug, Clone)]
-pub struct EmitOptions {
-  /// When emitting a legacy decorator, also emit experimental decorator meta
-  /// data.  Defaults to `false`.
-  pub emit_metadata: bool,
-  /// What to do with import statements that only import types i.e. whether to
-  /// remove them (`Remove`), keep them as side-effect imports (`Preserve`)
-  /// or error (`Error`). Defaults to `Remove`.
-  pub imports_not_used_as_values: ImportsNotUsedAsValues,
-  /// Should the source map be inlined in the emitted code file, or provided
-  /// as a separate file.  Defaults to `true`.
-  pub inline_source_map: bool,
-  /// Should the sources be inlined in the source map.  Defaults to `true`.
-  pub inline_sources: bool,
-  /// Should a corresponding .map file be created for the output. This should be
-  /// false if inline_source_map is true. Defaults to `false`.
-  pub source_map: bool,
-  /// `true` if the program should use an implicit JSX import source/the "new"
-  /// JSX transforms.
-  pub jsx_automatic: bool,
-  /// If JSX is automatic, if it is in development mode, meaning that it should
-  /// import `jsx-dev-runtime` and transform JSX using `jsxDEV` import from the
-  /// JSX import source as well as provide additional debug information to the
-  /// JSX factory.
-  pub jsx_development: bool,
-  /// When transforming JSX, what value should be used for the JSX factory.
-  /// Defaults to `React.createElement`.
-  pub jsx_factory: String,
-  /// When transforming JSX, what value should be used for the JSX fragment
-  /// factory.  Defaults to `React.Fragment`.
-  pub jsx_fragment_factory: String,
-  /// The string module specifier to implicitly import JSX factories from when
-  /// transpiling JSX.
-  pub jsx_import_source: Option<String>,
-  /// Should JSX be transformed or preserved.  Defaults to `true`.
-  pub transform_jsx: bool,
-  /// Should import declarations be transformed to variable declarations.
-  /// This should only be set to true for the REPL.  Defaults to `false`.
-  pub repl_imports: bool,
-}
-
-impl Default for EmitOptions {
-  fn default() -> Self {
-    EmitOptions {
-      emit_metadata: false,
-      imports_not_used_as_values: ImportsNotUsedAsValues::Remove,
-      inline_source_map: true,
-      inline_sources: true,
-      source_map: false,
-      jsx_automatic: false,
-      jsx_development: false,
-      jsx_factory: "React.createElement".into(),
-      jsx_fragment_factory: "React.Fragment".into(),
-      jsx_import_source: None,
-      transform_jsx: true,
-      repl_imports: false,
-    }
-  }
-}
-
-impl From<config_file::TsConfig> for EmitOptions {
-  fn from(config: config_file::TsConfig) -> Self {
-    let options: config_file::EmitConfigOptions =
-      serde_json::from_value(config.0).unwrap();
-    let imports_not_used_as_values =
-      match options.imports_not_used_as_values.as_str() {
-        "preserve" => ImportsNotUsedAsValues::Preserve,
-        "error" => ImportsNotUsedAsValues::Error,
-        _ => ImportsNotUsedAsValues::Remove,
-      };
-    let (transform_jsx, jsx_automatic, jsx_development) =
-      match options.jsx.as_str() {
-        "react" => (true, false, false),
-        "react-jsx" => (true, true, false),
-        "react-jsxdev" => (true, true, true),
-        _ => (false, false, false),
-      };
-    EmitOptions {
-      emit_metadata: options.emit_decorator_metadata,
-      imports_not_used_as_values,
-      inline_source_map: options.inline_source_map,
-      inline_sources: options.inline_sources,
-      source_map: options.source_map,
-      jsx_automatic,
-      jsx_development,
-      jsx_factory: options.jsx_factory,
-      jsx_fragment_factory: options.jsx_fragment_factory,
-      jsx_import_source: options.jsx_import_source,
-      transform_jsx,
-      repl_imports: false,
-    }
-  }
-}
-
-fn strip_config_from_emit_options(
-  options: &EmitOptions,
-) -> typescript::strip::Config {
-  typescript::strip::Config {
-    pragma: Some(options.jsx_factory.clone()),
-    pragma_frag: Some(options.jsx_fragment_factory.clone()),
-    import_not_used_as_values: match options.imports_not_used_as_values {
-      ImportsNotUsedAsValues::Remove => {
-        typescript::strip::ImportsNotUsedAsValues::Remove
-      }
-      ImportsNotUsedAsValues::Preserve => {
-        typescript::strip::ImportsNotUsedAsValues::Preserve
-      }
-      // `Error` only affects the type-checking stage. Fall back to `Remove` here.
-      ImportsNotUsedAsValues::Error => {
-        typescript::strip::ImportsNotUsedAsValues::Remove
-      }
-    },
-    use_define_for_class_fields: true,
-    // TODO(bartlomieju): this could be changed to `false` to provide `export {}`
-    // in Typescript files without manual changes
-    no_empty_export: true,
-  }
-}
-
-/// Implements a configuration trait for source maps that reflects the logic
-/// to embed sources in the source map or not.
-#[derive(Debug)]
-pub(crate) struct SourceMapConfig {
-  pub inline_sources: bool,
-}
-
-impl deno_ast::swc::common::source_map::SourceMapGenConfig for SourceMapConfig {
-  fn file_name_to_source(&self, f: &FileName) -> String {
-    f.to_string()
-  }
-
-  fn inline_sources_content(&self, f: &FileName) -> bool {
-    match f {
-      FileName::Real(..) | FileName::Custom(..) => false,
-      FileName::Url(..) => self.inline_sources,
-      _ => true,
-    }
-  }
-}
-
-/// Transform a TypeScript file into a JavaScript file, based on the supplied
-/// options.
-///
-/// The result is a tuple of the code and optional source map as strings.
-pub fn transpile(
-  parsed_source: &ParsedSource,
-  options: &EmitOptions,
-) -> Result<(String, Option<String>), AnyError> {
-  ensure_no_fatal_diagnostics(parsed_source.diagnostics().iter())?;
-  let program: Program = (*parsed_source.program()).clone();
-  let source_map = Rc::new(SourceMap::default());
-  let source_map_config = SourceMapConfig {
-    inline_sources: options.inline_sources,
-  };
-  let specifier = resolve_url_or_path(parsed_source.specifier())?;
-  let file_name = FileName::Url(specifier);
-  source_map
-    .new_source_file(file_name, parsed_source.source().text().to_string());
-  let comments = parsed_source.comments().as_single_threaded(); // needs to be mutable
-  let globals = Globals::new();
-  deno_ast::swc::common::GLOBALS.set(&globals, || {
-    let top_level_mark = Mark::fresh(Mark::root());
-    let module = fold_program(
-      program,
-      options,
-      source_map.clone(),
-      &comments,
-      top_level_mark,
-    )?;
-
-    let mut src_map_buf = vec![];
-    let mut buf = vec![];
-    {
-      let writer = Box::new(JsWriter::new(
-        source_map.clone(),
-        "\n",
-        &mut buf,
-        Some(&mut src_map_buf),
-      ));
-      let config = deno_ast::swc::codegen::Config { minify: false };
-      let mut emitter = deno_ast::swc::codegen::Emitter {
-        cfg: config,
-        comments: Some(&comments),
-        cm: source_map.clone(),
-        wr: writer,
-      };
-      module.emit_with(&mut emitter)?;
-    }
-    let mut src = String::from_utf8(buf)?;
-    let mut map: Option<String> = None;
-    {
-      let mut buf = Vec::new();
-      source_map
-        .build_source_map_with_config(&mut src_map_buf, None, source_map_config)
-        .to_writer(&mut buf)?;
-
-      if options.inline_source_map {
-        src.push_str("//# sourceMappingURL=data:application/json;base64,");
-        let encoded_map = base64::encode(buf);
-        src.push_str(&encoded_map);
-      } else {
-        map = Some(String::from_utf8(buf)?);
-      }
-    }
-    Ok((src, map))
-  })
-}
-
-/// A low level function which transpiles a source module into an swc
-/// SourceFile.
-pub fn transpile_module(
-  specifier: &ModuleSpecifier,
-  source: &str,
-  media_type: MediaType,
-  options: &EmitOptions,
-  cm: Rc<SourceMap>,
-) -> Result<(Rc<deno_ast::swc::common::SourceFile>, Module), AnyError> {
-  let source = strip_bom(source);
-  let source = if media_type == MediaType::Json {
-    format!(
-      "export default JSON.parse(`{}`);",
-      source.replace("${", "\\${").replace('`', "\\`")
-    )
-  } else {
-    source.to_string()
-  };
-  let source_file =
-    cm.new_source_file(FileName::Url(specifier.clone()), source);
-  let input = StringInput::from(&*source_file);
-  let comments = SingleThreadedComments::default();
-  let syntax = if media_type == MediaType::Json {
-    get_syntax(MediaType::JavaScript)
-  } else {
-    get_syntax(media_type)
-  };
-  let lexer = Lexer::new(syntax, deno_ast::ES_VERSION, input, Some(&comments));
-  let mut parser = deno_ast::swc::parser::Parser::new_from(lexer);
-  let module = parser
-    .parse_module()
-    .map_err(|e| swc_err_to_diagnostic(&cm, specifier, e))?;
-  let diagnostics = parser
-    .take_errors()
-    .into_iter()
-    .map(|e| swc_err_to_diagnostic(&cm, specifier, e))
-    .collect::<Vec<_>>();
-
-  ensure_no_fatal_diagnostics(diagnostics.iter())?;
-
-  let top_level_mark = Mark::fresh(Mark::root());
-  let program = fold_program(
-    Program::Module(module),
-    options,
-    cm,
-    &comments,
-    top_level_mark,
-  )?;
-  let module = match program {
-    Program::Module(module) => module,
-    _ => unreachable!(),
-  };
-
-  Ok((source_file, module))
-}
-
-#[derive(Default, Clone)]
-struct DiagnosticCollector {
-  diagnostics_cell: Rc<RefCell<Vec<SwcDiagnostic>>>,
-}
-
-impl DiagnosticCollector {
-  pub fn into_handler(self) -> deno_ast::swc::common::errors::Handler {
-    deno_ast::swc::common::errors::Handler::with_emitter(
-      true,
-      false,
-      Box::new(self),
-    )
-  }
-}
-
-impl deno_ast::swc::common::errors::Emitter for DiagnosticCollector {
-  fn emit(
-    &mut self,
-    db: &deno_ast::swc::common::errors::DiagnosticBuilder<'_>,
-  ) {
-    use std::ops::Deref;
-    self.diagnostics_cell.borrow_mut().push(db.deref().clone());
-  }
-}
-
-fn fold_program(
-  program: Program,
-  options: &EmitOptions,
-  source_map: Rc<SourceMap>,
-  comments: &SingleThreadedComments,
-  top_level_mark: Mark,
-) -> Result<Program, AnyError> {
-  let jsx_pass = react::react(
-    source_map.clone(),
-    Some(comments),
-    react::Options {
-      pragma: options.jsx_factory.clone(),
-      pragma_frag: options.jsx_fragment_factory.clone(),
-      // this will use `Object.assign()` instead of the `_extends` helper
-      // when spreading props.
-      use_builtins: true,
-      runtime: if options.jsx_automatic {
-        Some(react::Runtime::Automatic)
-      } else {
-        None
-      },
-      development: options.jsx_development,
-      import_source: options.jsx_import_source.clone().unwrap_or_default(),
-      ..Default::default()
-    },
-    top_level_mark,
-  );
-  let mut passes = chain!(
-    Optional::new(transforms::DownlevelImportsFolder, options.repl_imports),
-    Optional::new(transforms::StripExportsFolder, options.repl_imports),
-    proposals::decorators::decorators(proposals::decorators::Config {
-      legacy: true,
-      emit_metadata: options.emit_metadata
-    }),
-    helpers::inject_helpers(),
-    resolver_with_mark(top_level_mark),
-    Optional::new(
-      typescript::strip::strip_with_config(
-        strip_config_from_emit_options(options),
-        top_level_mark
-      ),
-      !options.transform_jsx
-    ),
-    Optional::new(
-      typescript::strip::strip_with_jsx(
-        source_map.clone(),
-        strip_config_from_emit_options(options),
-        comments,
-        top_level_mark
-      ),
-      options.transform_jsx
-    ),
-    Optional::new(jsx_pass, options.transform_jsx),
-    fixer(Some(comments)),
-    hygiene(),
-  );
-
-  let emitter = DiagnosticCollector::default();
-  let diagnostics_cell = emitter.diagnostics_cell.clone();
-  let handler = emitter.into_handler();
-  let result = deno_ast::swc::utils::HANDLER.set(&handler, || {
-    helpers::HELPERS.set(&helpers::Helpers::new(false), || {
-      program.fold_with(&mut passes)
-    })
-  });
-
-  let diagnostics = diagnostics_cell.borrow();
-  ensure_no_fatal_swc_diagnostics(&source_map, diagnostics.iter())?;
-  Ok(result)
-}
-
-fn ensure_no_fatal_swc_diagnostics<'a>(
-  source_map: &SourceMap,
-  diagnostics: impl Iterator<Item = &'a SwcDiagnostic>,
-) -> Result<(), AnyError> {
-  let fatal_diagnostics = diagnostics
-    .filter(|d| is_fatal_swc_diagnostic(d))
-    .collect::<Vec<_>>();
-  if !fatal_diagnostics.is_empty() {
-    Err(anyhow!(
-      "{}",
-      fatal_diagnostics
-        .iter()
-        .map(|d| format_swc_diagnostic(source_map, d))
-        .collect::<Vec<_>>()
-        .join("\n\n")
-    ))
-  } else {
-    Ok(())
-  }
-}
-
-fn is_fatal_swc_diagnostic(diagnostic: &SwcDiagnostic) -> bool {
-  use deno_ast::swc::common::errors::Level;
-  match diagnostic.level {
-    Level::Bug
-    | Level::Cancelled
-    | Level::FailureNote
-    | Level::Fatal
-    | Level::PhaseFatal
-    | Level::Error => true,
-    Level::Help | Level::Note | Level::Warning => false,
-  }
-}
-
-fn format_swc_diagnostic(
-  source_map: &SourceMap,
-  diagnostic: &SwcDiagnostic,
-) -> String {
-  if let Some(span) = &diagnostic.span.primary_span() {
-    let file_name = source_map.span_to_filename(*span);
-    let loc = source_map.lookup_char_pos(span.lo);
-    format!(
-      "{} at {}:{}:{}",
-      diagnostic.message(),
-      file_name.to_string(),
-      loc.line,
-      loc.col_display + 1,
-    )
-  } else {
-    diagnostic.message()
-  }
-}
-
-fn swc_err_to_diagnostic(
-  source_map: &SourceMap,
-  specifier: &ModuleSpecifier,
-  err: SwcError,
-) -> Diagnostic {
-  let location = source_map.lookup_char_pos(err.span().lo);
-  Diagnostic {
-    specifier: specifier.to_string(),
-    span: err.span(),
-    display_position: LineAndColumnDisplay {
-      line_number: location.line,
-      column_number: location.col_display + 1,
-    },
-    kind: err.into_kind(),
-  }
-}
-
-fn ensure_no_fatal_diagnostics<'a>(
-  diagnostics: impl Iterator<Item = &'a Diagnostic>,
-) -> Result<(), Diagnostics> {
-  let fatal_diagnostics = diagnostics
-    .filter(|d| is_fatal_syntax_error(&d.kind))
-    .map(ToOwned::to_owned)
-    .collect::<Vec<_>>();
-  if !fatal_diagnostics.is_empty() {
-    Err(Diagnostics(fatal_diagnostics))
-  } else {
-    Ok(())
-  }
-}
-
-fn is_fatal_syntax_error(error_kind: &SyntaxError) -> bool {
-  matches!(
-    error_kind,
-    // expected identifier
-    SyntaxError::TS1003 |
-        // expected semi-colon
-        SyntaxError::TS1005 |
-        // expected expression
-        SyntaxError::TS1109 |
-        // unterminated string literal
-        SyntaxError::UnterminatedStrLit
-  )
-}
-
-#[cfg(test)]
-mod tests {
-  use super::*;
-  use deno_ast::parse_module;
-  use deno_ast::ParseParams;
-  use deno_ast::SourceTextInfo;
-
-  use pretty_assertions::assert_eq;
-
-  #[test]
-  fn test_transpile() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.ts").unwrap();
-    let source = r#"
-enum D {
-  A,
-  B,
-}
-
-namespace N {
-  export enum D {
-    A = "value"
-  }
-  export const Value = 5;
-}
-
-export class A {
-  private b: string;
-  protected c: number = 1;
-  e: "foo";
-  constructor (public d = D.A) {
-    const e = "foo" as const;
-    this.e = e;
-    console.log(N.Value);
-  }
-}
-    "#;
-    let module = deno_ast::parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::TypeScript,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: false,
-    })
-    .unwrap();
-    let (code, maybe_map) =
-      transpile(&module, &EmitOptions::default()).unwrap();
-    let expected_text = r#"var D;
-(function(D) {
-    D[D["A"] = 0] = "A";
-    D[D["B"] = 1] = "B";
-})(D || (D = {}));
-var N;
-(function(N1) {
-    let D;
-    (function(D) {
-        D["A"] = "value";
-    })(D = N1.D || (N1.D = {}));
-    var Value = N1.Value = 5;
-})(N || (N = {}));
-export class A {
-    d;
-    b;
-    c = 1;
-    e;
-    constructor(d = D.A){
-        this.d = d;
-        const e = "foo";
-        this.e = e;
-        console.log(N.Value);
-    }
-}
-"#;
-    assert_eq!(&code[..expected_text.len()], expected_text);
-    assert!(
-      code.contains("\n//# sourceMappingURL=data:application/json;base64,")
-    );
-    assert!(maybe_map.is_none());
-  }
-
-  #[test]
-  fn test_transpile_tsx() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.ts").unwrap();
-    let source = r#"
-    export class A {
-      render() {
-        return <div><span></span></div>
-      }
-    }
-    "#;
-    let module = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::Tsx,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: true, // ensure scope analysis doesn't conflict with a second resolver pass
-    })
-    .unwrap();
-    let (code, _) = transpile(&module, &EmitOptions::default()).unwrap();
-    assert!(code.contains("React.createElement(\"div\", null"));
-  }
-
-  #[test]
-  fn test_transpile_jsx_pragma() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.ts").unwrap();
-    let source = r#"
-/** @jsx h */
-/** @jsxFrag Fragment */
-import { h, Fragment } from "https://deno.land/x/mod.ts";
-
-function App() {
-  return (
-    <div><></></div>
-  );
-}"#;
-    let module = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::Jsx,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: true,
-    })
-    .unwrap();
-    let (code, _) = transpile(&module, &EmitOptions::default()).unwrap();
-    let expected = r#"/** @jsx h */ /** @jsxFrag Fragment */ import { h, Fragment } from "https://deno.land/x/mod.ts";
-function App() {
-    return(/*#__PURE__*/ h("div", null, /*#__PURE__*/ h(Fragment, null)));
-}"#;
-    assert_eq!(&code[..expected.len()], expected);
-  }
-
-  #[test]
-  fn test_transpile_jsx_import_source_pragma() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.tsx").unwrap();
-    let source = r#"
-/** @jsxImportSource jsx_lib */
-
-function App() {
-  return (
-    <div><></></div>
-  );
-}"#;
-    let module = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::Jsx,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: true,
-    })
-    .unwrap();
-    let (code, _) = transpile(&module, &EmitOptions::default()).unwrap();
-    let expected = r#"import { jsx as _jsx, Fragment as _Fragment } from "jsx_lib/jsx-runtime";
-/** @jsxImportSource jsx_lib */ function App() {
-    return(/*#__PURE__*/ _jsx("div", {
-        children: /*#__PURE__*/ _jsx(_Fragment, {})
-    }));
-"#;
-    assert_eq!(&code[..expected.len()], expected);
-  }
-
-  #[test]
-  fn test_transpile_jsx_import_source_no_pragma() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.tsx").unwrap();
-    let source = r#"
-function App() {
-  return (
-    <div><></></div>
-  );
-}"#;
-    let module = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::Jsx,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: true,
-    })
-    .unwrap();
-    let emit_options = EmitOptions {
-      jsx_automatic: true,
-      jsx_import_source: Some("jsx_lib".to_string()),
-      ..Default::default()
-    };
-    let (code, _) = transpile(&module, &emit_options).unwrap();
-    let expected = r#"import { jsx as _jsx, Fragment as _Fragment } from "jsx_lib/jsx-runtime";
-function App() {
-    return(/*#__PURE__*/ _jsx("div", {
-        children: /*#__PURE__*/ _jsx(_Fragment, {})
-    }));
-}
-"#;
-    assert_eq!(&code[..expected.len()], expected);
-  }
-
-  // TODO(@kitsonk) https://github.com/swc-project/swc/issues/2656
-  //   #[test]
-  //   fn test_transpile_jsx_import_source_no_pragma_dev() {
-  //     let specifier = resolve_url_or_path("https://deno.land/x/mod.tsx").unwrap();
-  //     let source = r#"
-  // function App() {
-  //   return (
-  //     <div><></></div>
-  //   );
-  // }"#;
-  //     let module = parse_module(ParseParams {
-  //       specifier: specifier.as_str().to_string(),
-  //       source: SourceTextInfo::from_string(source.to_string()),
-  //       media_type: deno_ast::MediaType::Jsx,
-  //       capture_tokens: false,
-  //       maybe_syntax: None,
-  //       scope_analysis: true,
-  //     })
-  //     .unwrap();
-  //     let emit_options = EmitOptions {
-  //       jsx_automatic: true,
-  //       jsx_import_source: Some("jsx_lib".to_string()),
-  //       jsx_development: true,
-  //       ..Default::default()
-  //     };
-  //     let (code, _) = transpile(&module, &emit_options).unwrap();
-  //     let expected = r#"import { jsx as _jsx, Fragment as _Fragment } from "jsx_lib/jsx-dev-runtime";
-  // function App() {
-  //     return(/*#__PURE__*/ _jsx("div", {
-  //         children: /*#__PURE__*/ _jsx(_Fragment, {
-  //         })
-  //     }));
-  // }
-  // "#;
-  //     assert_eq!(&code[..expected.len()], expected);
-  //   }
-
-  #[test]
-  fn test_transpile_decorators() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.ts").unwrap();
-    let source = r#"
-    function enumerable(value: boolean) {
-      return function (
-        _target: any,
-        _propertyKey: string,
-        descriptor: PropertyDescriptor,
-      ) {
-        descriptor.enumerable = value;
-      };
-    }
-
-    export class A {
-      @enumerable(false)
-      a() {
-        Test.value;
-      }
-    }
-    "#;
-    let module = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::TypeScript,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: false,
-    })
-    .unwrap();
-    let (code, _) = transpile(&module, &EmitOptions::default()).unwrap();
-    assert!(code.contains("_applyDecoratedDescriptor("));
-  }
-
-  #[test]
-  fn transpile_handle_code_nested_in_ts_nodes_with_jsx_pass() {
-    // from issue 12409
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.ts").unwrap();
-    let source = r#"
-export function g() {
-  let algorithm: any
-  algorithm = {}
-
-  return <Promise>(
-    test(algorithm, false, keyUsages)
-  )
-}
-  "#;
-    let module = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::TypeScript,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: false,
-    })
-    .unwrap();
-    let emit_options = EmitOptions {
-      transform_jsx: true,
-      ..Default::default()
-    };
-    let (code, _) = transpile(&module, &emit_options).unwrap();
-    let expected = r#"export function g() {
-    let algorithm;
-    algorithm = {};
-    return test(algorithm, false, keyUsages);
-}"#;
-    assert_eq!(&code[..expected.len()], expected);
-  }
-
-  #[test]
-  fn diagnostic_jsx_spread_instead_of_panic() {
-    let specifier = resolve_url_or_path("https://deno.land/x/mod.ts").unwrap();
-    let source = r#"const A = () => {
-  return <div>{...[]}</div>;
-};"#;
-    let parsed_source = parse_module(ParseParams {
-      specifier: specifier.as_str().to_string(),
-      source: SourceTextInfo::from_string(source.to_string()),
-      media_type: deno_ast::MediaType::Tsx,
-      capture_tokens: false,
-      maybe_syntax: None,
-      scope_analysis: false,
-    })
-    .unwrap();
-    let err = transpile(&parsed_source, &Default::default())
-      .err()
-      .unwrap();
-
-    assert_eq!(err.to_string(), "Spread children are not supported in React. at https://deno.land/x/mod.ts:2:15");
-  }
-}
diff --git a/cli/ast/transforms.rs b/cli/ast/transforms.rs
deleted file mode 100644
index a89edc01d..000000000
--- a/cli/ast/transforms.rs
+++ /dev/null
@@ -1,524 +0,0 @@
-use deno_ast::swc::ast as swc_ast;
-use deno_ast::swc::common::DUMMY_SP;
-use deno_ast::swc::visit::noop_fold_type;
-use deno_ast::swc::visit::Fold;
-
-/// Transforms import declarations to variable declarations
-/// with a dynamic import. This is used to provide import
-/// declaration support in the REPL.
-pub struct DownlevelImportsFolder;
-
-impl Fold for DownlevelImportsFolder {
-  noop_fold_type!(); // skip typescript specific nodes
-
-  fn fold_module_item(
-    &mut self,
-    module_item: swc_ast::ModuleItem,
-  ) -> swc_ast::ModuleItem {
-    use deno_ast::swc::ast::*;
-
-    match module_item {
-      ModuleItem::ModuleDecl(ModuleDecl::Import(import_decl)) => {
-        // Handle type only imports
-        if import_decl.type_only {
-          // should have no side effects
-          return create_empty_stmt();
-        }
-
-        // The initializer (ex. `await import('./mod.ts')`)
-        let initializer =
-          create_await_import_expr(&import_decl.src.value, import_decl.asserts);
-
-        // Handle imports for the side effects
-        // ex. `import "module.ts"` -> `await import("module.ts");`
-        if import_decl.specifiers.is_empty() {
-          return ModuleItem::Stmt(Stmt::Expr(ExprStmt {
-            span: DUMMY_SP,
-            expr: initializer,
-          }));
-        }
-
-        // Collect the specifiers and create the variable statement
-        let named_import_props = import_decl
-          .specifiers
-          .iter()
-          .filter_map(|specifier| match specifier {
-            ImportSpecifier::Default(specifier) => Some(create_key_value(
-              "default".to_string(),
-              specifier.local.sym.to_string(),
-            )),
-            ImportSpecifier::Named(specifier) => {
-              Some(match specifier.imported.as_ref() {
-                Some(name) => create_key_value(
-                  match name {
-                    ModuleExportName::Ident(ident) => ident.sym.to_string(),
-                    ModuleExportName::Str(str) => str.value.to_string(),
-                  },
-                  specifier.local.sym.to_string(),
-                ),
-                None => create_assignment(specifier.local.sym.to_string()),
-              })
-            }
-            ImportSpecifier::Namespace(_) => None,
-          })
-          .collect::<Vec<_>>();
-        let namespace_import_name =
-          import_decl
-            .specifiers
-            .iter()
-            .find_map(|specifier| match specifier {
-              ImportSpecifier::Namespace(specifier) => {
-                Some(create_binding_ident(specifier.local.sym.to_string()))
-              }
-              _ => None,
-            });
-
-        ModuleItem::Stmt(Stmt::Decl(Decl::Var(VarDecl {
-          span: DUMMY_SP,
-          kind: VarDeclKind::Const,
-          declare: false,
-          decls: {
-            let mut decls = Vec::new();
-
-            if !named_import_props.is_empty() {
-              decls.push(VarDeclarator {
-                span: DUMMY_SP,
-                name: Pat::Object(ObjectPat {
-                  span: DUMMY_SP,
-                  optional: false,
-                  props: named_import_props,
-                  type_ann: None,
-                }),
-                definite: false,
-                init: Some(initializer.clone()),
-              });
-            }
-            if let Some(namespace_import) = namespace_import_name {
-              decls.push(VarDeclarator {
-                span: DUMMY_SP,
-                name: Pat::Ident(namespace_import),
-                definite: false,
-                init: Some(initializer),
-              });
-            }
-
-            decls
-          },
-        })))
-      }
-      _ => module_item,
-    }
-  }
-}
-
-/// Strips export declarations and exports on named exports for the REPL.
-pub struct StripExportsFolder;
-
-impl Fold for StripExportsFolder {
-  noop_fold_type!(); // skip typescript specific nodes
-
-  fn fold_module_item(
-    &mut self,
-    module_item: swc_ast::ModuleItem,
-  ) -> swc_ast::ModuleItem {
-    use deno_ast::swc::ast::*;
-
-    match module_item {
-      ModuleItem::ModuleDecl(ModuleDecl::ExportAll(export_all)) => {
-        ModuleItem::Stmt(Stmt::Expr(ExprStmt {
-          span: DUMMY_SP,
-          expr: create_await_import_expr(
-            &export_all.src.value,
-            export_all.asserts,
-          ),
-        }))
-      }
-      ModuleItem::ModuleDecl(ModuleDecl::ExportNamed(export_named)) => {
-        if let Some(src) = export_named.src {
-          ModuleItem::Stmt(Stmt::Expr(ExprStmt {
-            span: DUMMY_SP,
-            expr: create_await_import_expr(&src.value, export_named.asserts),
-          }))
-        } else {
-          create_empty_stmt()
-        }
-      }
-      ModuleItem::ModuleDecl(ModuleDecl::ExportDefaultExpr(default_expr)) => {
-        // transform a default export expression to its expression
-        ModuleItem::Stmt(Stmt::Expr(ExprStmt {
-          span: DUMMY_SP,
-          expr: default_expr.expr,
-        }))
-      }
-      ModuleItem::ModuleDecl(ModuleDecl::ExportDecl(export_decl)) => {
-        // strip the export keyword on an exported declaration
-        ModuleItem::Stmt(Stmt::Decl(export_decl.decl))
-      }
-      ModuleItem::ModuleDecl(ModuleDecl::ExportDefaultDecl(default_decl)) => {
-        // only keep named default exports
-        match default_decl.decl {
-          DefaultDecl::Fn(FnExpr {
-            ident: Some(ident),
-            function,
-          }) => ModuleItem::Stmt(Stmt::Decl(Decl::Fn(FnDecl {
-            declare: false,
-            ident,
-            function,
-          }))),
-          DefaultDecl::Class(ClassExpr {
-            ident: Some(ident),
-            class,
-          }) => ModuleItem::Stmt(Stmt::Decl(Decl::Class(ClassDecl {
-            declare: false,
-            ident,
-            class,
-          }))),
-          _ => create_empty_stmt(),
-        }
-      }
-      _ => module_item,
-    }
-  }
-}
-
-fn create_empty_stmt() -> swc_ast::ModuleItem {
-  use swc_ast::*;
-  ModuleItem::Stmt(Stmt::Empty(EmptyStmt { span: DUMMY_SP }))
-}
-
-fn create_binding_ident(name: String) -> swc_ast::BindingIdent {
-  swc_ast::BindingIdent {
-    id: create_ident(name),
-    type_ann: None,
-  }
-}
-
-fn create_ident(name: String) -> swc_ast::Ident {
-  swc_ast::Ident {
-    span: DUMMY_SP,
-    sym: name.into(),
-    optional: false,
-  }
-}
-
-fn create_key_value(key: String, value: String) -> swc_ast::ObjectPatProp {
-  swc_ast::ObjectPatProp::KeyValue(swc_ast::KeyValuePatProp {
-    // use a string literal because it will work in more scenarios than an identifier
-    key: swc_ast::PropName::Str(swc_ast::Str {
-      span: DUMMY_SP,
-      value: key.into(),
-      has_escape: false,
-      kind: swc_ast::StrKind::Synthesized,
-    }),
-    value: Box::new(swc_ast::Pat::Ident(swc_ast::BindingIdent {
-      id: swc_ast::Ident {
-        span: DUMMY_SP,
-        sym: value.into(),
-        optional: false,
-      },
-      type_ann: None,
-    })),
-  })
-}
-
-fn create_await_import_expr(
-  module_specifier: &str,
-  maybe_asserts: Option<swc_ast::ObjectLit>,
-) -> Box<swc_ast::Expr> {
-  use swc_ast::*;
-  let mut args = vec![ExprOrSpread {
-    spread: None,
-    expr: Box::new(Expr::Lit(Lit::Str(Str {
-      span: DUMMY_SP,
-      has_escape: false,
-      kind: StrKind::Normal {
-        contains_quote: false,
-      },
-      value: module_specifier.into(),
-    }))),
-  }];
-
-  // add assert object if it exists
-  if let Some(asserts) = maybe_asserts {
-    args.push(ExprOrSpread {
-      spread: None,
-      expr: Box::new(Expr::Object(ObjectLit {
-        span: DUMMY_SP,
-        props: vec![PropOrSpread::Prop(Box::new(Prop::KeyValue(
-          KeyValueProp {
-            key: PropName::Ident(create_ident("assert".to_string())),
-            value: Box::new(Expr::Object(asserts)),
-          },
-        )))],
-      })),
-    })
-  }
-
-  Box::new(Expr::Await(AwaitExpr {
-    span: DUMMY_SP,
-    arg: Box::new(Expr::Call(CallExpr {
-      span: DUMMY_SP,
-      callee: ExprOrSuper::Expr(Box::new(Expr::Ident(Ident {
-        span: DUMMY_SP,
-        sym: "import".into(),
-        optional: false,
-      }))),
-      args,
-      type_args: None,
-    })),
-  }))
-}
-
-fn create_assignment(key: String) -> swc_ast::ObjectPatProp {
-  swc_ast::ObjectPatProp::Assign(swc_ast::AssignPatProp {
-    span: DUMMY_SP,
-    key: create_ident(key),
-    value: None,
-  })
-}
-
-#[cfg(test)]
-mod test {
-  use deno_ast::swc::ast::Module;
-  use deno_ast::swc::codegen::text_writer::JsWriter;
-  use deno_ast::swc::codegen::Node;
-  use deno_ast::swc::common::FileName;
-  use deno_ast::swc::common::SourceMap;
-  use deno_ast::swc::parser::Parser;
-  use deno_ast::swc::parser::StringInput;
-  use deno_ast::swc::parser::Syntax;
-  use deno_ast::swc::parser::TsConfig;
-  use deno_ast::swc::visit::Fold;
-  use deno_ast::swc::visit::FoldWith;
-  use deno_ast::ModuleSpecifier;
-  use pretty_assertions::assert_eq;
-  use std::rc::Rc;
-
-  use super::*;
-
-  #[test]
-  fn test_downlevel_imports_type_only() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import type { test } from "./mod.ts";"#,
-      ";",
-    );
-  }
-
-  #[test]
-  fn test_downlevel_imports_specifier_only() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import "./mod.ts";"#,
-      r#"await import("./mod.ts");"#,
-    );
-
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import {} from "./mod.ts";"#,
-      r#"await import("./mod.ts");"#,
-    );
-  }
-
-  #[test]
-  fn test_downlevel_imports_default() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import mod from "./mod.ts";"#,
-      r#"const { "default": mod  } = await import("./mod.ts");"#,
-    );
-  }
-
-  #[test]
-  fn test_downlevel_imports_named() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import { A } from "./mod.ts";"#,
-      r#"const { A  } = await import("./mod.ts");"#,
-    );
-
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import { A, B, C  } from "./mod.ts";"#,
-      r#"const { A , B , C  } = await import("./mod.ts");"#,
-    );
-
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import { A as LocalA, B, C as LocalC  } from "./mod.ts";"#,
-      r#"const { "A": LocalA , B , "C": LocalC  } = await import("./mod.ts");"#,
-    );
-  }
-
-  #[test]
-  fn test_downlevel_imports_namespace() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import * as mod from "./mod.ts";"#,
-      r#"const mod = await import("./mod.ts");"#,
-    );
-  }
-
-  #[test]
-  fn test_downlevel_imports_mixed() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import myDefault, { A, B as LocalB } from "./mod.ts";"#,
-      r#"const { "default": myDefault , A , "B": LocalB  } = await import("./mod.ts");"#,
-    );
-
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import myDefault, * as mod from "./mod.ts";"#,
-      r#"const { "default": myDefault  } = await import("./mod.ts"), mod = await import("./mod.ts");"#,
-    );
-  }
-
-  #[test]
-  fn test_downlevel_imports_assertions() {
-    test_transform(
-      DownlevelImportsFolder,
-      r#"import data from "./mod.json" assert { type: "json" };"#,
-      "const { \"default\": data  } = await import(\"./mod.json\", {\n    assert: {\n        type: \"json\"\n    }\n});",
-    );
-  }
-
-  #[test]
-  fn test_strip_exports_export_all() {
-    test_transform(
-      StripExportsFolder,
-      r#"export * from "./test.ts";"#,
-      r#"await import("./test.ts");"#,
-    );
-  }
-
-  #[test]
-  fn test_strip_exports_export_named() {
-    test_transform(
-      StripExportsFolder,
-      r#"export { test } from "./test.ts";"#,
-      r#"await import("./test.ts");"#,
-    );
-
-    test_transform(StripExportsFolder, r#"export { test };"#, ";");
-  }
-
-  #[test]
-  fn test_strip_exports_assertions() {
-    test_transform(
-      StripExportsFolder,
-      r#"export { default as data } from "./mod.json" assert { type: "json" };"#,
-      "await import(\"./mod.json\", {\n    assert: {\n        type: \"json\"\n    }\n});",
-    );
-  }
-
-  #[test]
-  fn test_strip_exports_export_all_assertions() {
-    // even though this doesn't really make sense for someone to do
-    test_transform(
-      StripExportsFolder,
-      r#"export * from "./mod.json" assert { type: "json" };"#,
-      "await import(\"./mod.json\", {\n    assert: {\n        type: \"json\"\n    }\n});",
-    );
-  }
-
-  #[test]
-  fn test_strip_exports_export_default_expr() {
-    test_transform(StripExportsFolder, "export default 5;", "5;");
-  }
-
-  #[test]
-  fn test_strip_exports_export_default_decl_name() {
-    test_transform(
-      StripExportsFolder,
-      "export default class Test {}",
-      "class Test {\n}",
-    );
-
-    test_transform(
-      StripExportsFolder,
-      "export default function test() {}",
-      "function test() {}",
-    );
-  }
-
-  #[test]
-  fn test_strip_exports_export_default_decl_no_name() {
-    test_transform(StripExportsFolder, "export default class {}", ";");
-
-    test_transform(StripExportsFolder, "export default function() {}", ";");
-  }
-
-  #[test]
-  fn test_strip_exports_export_named_decls() {
-    test_transform(
-      StripExportsFolder,
-      "export class Test {}",
-      "class Test {\n}",
-    );
-
-    test_transform(
-      StripExportsFolder,
-      "export function test() {}",
-      "function test() {}",
-    );
-
-    test_transform(StripExportsFolder, "export enum Test {}", "enum Test {\n}");
-
-    test_transform(
-      StripExportsFolder,
-      "export namespace Test {}",
-      "module Test {\n}",
-    );
-  }
-
-  #[test]
-  fn test_strip_exports_not_in_namespace() {
-    test_transform(
-      StripExportsFolder,
-      "namespace Test { export class Test {} }",
-      "module Test {\n    export class Test {\n    }\n}",
-    );
-  }
-
-  fn test_transform(
-    mut transform: impl Fold,
-    src: &str,
-    expected_output: &str,
-  ) {
-    let (source_map, module) = parse(src);
-    let output = print(source_map, module.fold_with(&mut transform));
-    assert_eq!(output, format!("{}\n", expected_output));
-  }
-
-  fn parse(src: &str) -> (Rc<SourceMap>, Module) {
-    let source_map = Rc::new(SourceMap::default());
-    let source_file = source_map.new_source_file(
-      FileName::Url(ModuleSpecifier::parse("file:///test.ts").unwrap()),
-      src.to_string(),
-    );
-    let input = StringInput::from(&*source_file);
-    let syntax = Syntax::Typescript(TsConfig {
-      ..Default::default()
-    });
-    let mut parser = Parser::new(syntax, input, None);
-    (source_map, parser.parse_module().unwrap())
-  }
-
-  fn print(source_map: Rc<SourceMap>, module: Module) -> String {
-    let mut buf = vec![];
-    {
-      let writer =
-        Box::new(JsWriter::new(source_map.clone(), "\n", &mut buf, None));
-      let config = deno_ast::swc::codegen::Config { minify: false };
-      let mut emitter = deno_ast::swc::codegen::Emitter {
-        cfg: config,
-        comments: None,
-        cm: source_map,
-        wr: writer,
-      };
-      module.emit_with(&mut emitter).unwrap();
-    }
-    String::from_utf8(buf).unwrap()
-  }
-}
diff --git a/cli/cache.rs b/cli/cache.rs
index 218c699a1..1075230d1 100644
--- a/cli/cache.rs
+++ b/cli/cache.rs
@@ -149,7 +149,7 @@ impl Loader for FetchCacher {
     let file_fetcher = self.file_fetcher.clone();
 
     async move {
-      let load_result = file_fetcher
+      file_fetcher
         .fetch(&specifier, &mut permissions)
         .await
         .map_or_else(
@@ -170,9 +170,7 @@ impl Loader for FetchCacher {
               content: file.source,
             }))
           },
-        );
-
-      (specifier, load_result)
+        )
     }
     .boxed()
   }
@@ -295,7 +293,7 @@ impl Loader for MemoryCacher {
       maybe_headers: None,
       content: c.to_owned(),
     });
-    Box::pin(future::ready((specifier.clone(), Ok(response))))
+    Box::pin(future::ready(Ok(response)))
   }
 }
 
diff --git a/cli/emit.rs b/cli/emit.rs
index 35d6f1110..e21013b61 100644
--- a/cli/emit.rs
+++ b/cli/emit.rs
@@ -4,10 +4,10 @@
 //! populate a cache, emit files, and transform a graph into the structures for
 //! loading into an isolate.
 
-use crate::ast;
 use crate::cache::CacheType;
 use crate::cache::Cacher;
 use crate::colors;
+use crate::config_file;
 use crate::config_file::ConfigFile;
 use crate::config_file::IgnoredCompilerOptions;
 use crate::config_file::TsConfig;
@@ -15,10 +15,25 @@ use crate::diagnostics::Diagnostics;
 use crate::flags;
 use crate::graph_util::GraphData;
 use crate::graph_util::ModuleEntry;
+use crate::text_encoding::strip_bom;
 use crate::tsc;
 use crate::version;
 
+use deno_ast::get_syntax;
 use deno_ast::swc;
+use deno_ast::swc::bundler::Hook;
+use deno_ast::swc::bundler::ModuleRecord;
+use deno_ast::swc::common::comments::SingleThreadedComments;
+use deno_ast::swc::common::FileName;
+use deno_ast::swc::common::Mark;
+use deno_ast::swc::common::SourceMap;
+use deno_ast::swc::common::Span;
+use deno_ast::swc::common::Spanned;
+use deno_ast::swc::parser::error::Error as SwcError;
+use deno_ast::swc::parser::lexer::Lexer;
+use deno_ast::swc::parser::StringInput;
+use deno_ast::Diagnostic;
+use deno_ast::LineAndColumnDisplay;
 use deno_core::anyhow::anyhow;
 use deno_core::anyhow::Context;
 use deno_core::error::AnyError;
@@ -27,6 +42,7 @@ use deno_core::serde::Deserialize;
 use deno_core::serde::Deserializer;
 use deno_core::serde::Serialize;
 use deno_core::serde::Serializer;
+use deno_core::serde_json;
 use deno_core::serde_json::json;
 use deno_core::serde_json::Value;
 use deno_core::ModuleSpecifier;
@@ -517,7 +533,7 @@ pub(crate) struct BundleOptions {
 /// of modules from the graph.
 struct BundleLoader<'a> {
   cm: Rc<swc::common::SourceMap>,
-  emit_options: &'a ast::EmitOptions,
+  emit_options: &'a deno_ast::EmitOptions,
   graph: &'a ModuleGraph,
 }
 
@@ -529,7 +545,7 @@ impl swc::bundler::Load for BundleLoader<'_> {
     match file_name {
       swc::common::FileName::Url(specifier) => {
         if let Some(m) = self.graph.get(specifier) {
-          let (fm, module) = ast::transpile_module(
+          let (fm, module) = transpile_module(
             specifier,
             m.maybe_source().unwrap_or(""),
             *m.media_type(),
@@ -556,6 +572,77 @@ impl swc::bundler::Load for BundleLoader<'_> {
   }
 }
 
+/// Transpiles a source module into an swc SourceFile.
+fn transpile_module(
+  specifier: &ModuleSpecifier,
+  source: &str,
+  media_type: MediaType,
+  options: &deno_ast::EmitOptions,
+  cm: Rc<swc::common::SourceMap>,
+) -> Result<(Rc<swc::common::SourceFile>, swc::ast::Module), AnyError> {
+  let source = strip_bom(source);
+  let source = if media_type == MediaType::Json {
+    format!(
+      "export default JSON.parse(`{}`);",
+      source.replace("${", "\\${").replace('`', "\\`")
+    )
+  } else {
+    source.to_string()
+  };
+  let source_file =
+    cm.new_source_file(FileName::Url(specifier.clone()), source);
+  let input = StringInput::from(&*source_file);
+  let comments = SingleThreadedComments::default();
+  let syntax = if media_type == MediaType::Json {
+    get_syntax(MediaType::JavaScript)
+  } else {
+    get_syntax(media_type)
+  };
+  let lexer = Lexer::new(syntax, deno_ast::ES_VERSION, input, Some(&comments));
+  let mut parser = swc::parser::Parser::new_from(lexer);
+  let module = parser
+    .parse_module()
+    .map_err(|e| swc_err_to_diagnostic(&cm, specifier, e))?;
+  let diagnostics = parser
+    .take_errors()
+    .into_iter()
+    .map(|e| swc_err_to_diagnostic(&cm, specifier, e))
+    .collect::<Vec<_>>();
+
+  let top_level_mark = Mark::fresh(Mark::root());
+  let program = deno_ast::fold_program(
+    swc::ast::Program::Module(module),
+    options,
+    cm,
+    &comments,
+    top_level_mark,
+    &diagnostics,
+  )?;
+  let module = match program {
+    swc::ast::Program::Module(module) => module,
+    _ => unreachable!(),
+  };
+
+  Ok((source_file, module))
+}
+
+fn swc_err_to_diagnostic(
+  source_map: &SourceMap,
+  specifier: &ModuleSpecifier,
+  err: SwcError,
+) -> Diagnostic {
+  let location = source_map.lookup_char_pos(err.span().lo);
+  Diagnostic {
+    specifier: specifier.to_string(),
+    span: err.span(),
+    display_position: LineAndColumnDisplay {
+      line_number: location.line,
+      column_number: location.col_display + 1,
+    },
+    kind: err.into_kind(),
+  }
+}
+
 /// A resolver implementation for swc that resolves specifiers from the graph.
 struct BundleResolver<'a>(&'a ModuleGraph);
 
@@ -597,8 +684,8 @@ pub(crate) fn bundle(
 ) -> Result<(String, Option<String>), AnyError> {
   let globals = swc::common::Globals::new();
   deno_ast::swc::common::GLOBALS.set(&globals, || {
-    let emit_options: ast::EmitOptions = options.ts_config.into();
-    let source_map_config = ast::SourceMapConfig {
+    let emit_options: deno_ast::EmitOptions = options.ts_config.into();
+    let source_map_config = deno_ast::SourceMapConfig {
       inline_sources: emit_options.inline_sources,
     };
 
@@ -617,7 +704,7 @@ pub(crate) fn bundle(
     };
     // This hook will rewrite the `import.meta` when bundling to give a consistent
     // behavior between bundled and unbundled code.
-    let hook = Box::new(ast::BundleHook);
+    let hook = Box::new(BundleHook);
     let mut bundler = swc::bundler::Bundler::new(
       &globals,
       cm.clone(),
@@ -722,11 +809,10 @@ pub(crate) fn emit(
     if is_valid && !needs_reload {
       continue;
     }
-    let (emit, maybe_map) =
-      ast::transpile(&module.parsed_source, &emit_options)?;
+    let transpiled_source = module.parsed_source.transpile(&emit_options)?;
     emit_count += 1;
-    cache.set(CacheType::Emit, &module.specifier, emit)?;
-    if let Some(map) = maybe_map {
+    cache.set(CacheType::Emit, &module.specifier, transpiled_source.text)?;
+    if let Some(map) = transpiled_source.source_map {
       cache.set(CacheType::SourceMap, &module.specifier, map)?;
     }
     if !is_valid {
@@ -861,6 +947,80 @@ pub(crate) fn to_file_map(
   files
 }
 
+/// This contains the logic for Deno to rewrite the `import.meta` when bundling.
+pub struct BundleHook;
+
+impl Hook for BundleHook {
+  fn get_import_meta_props(
+    &self,
+    span: Span,
+    module_record: &ModuleRecord,
+  ) -> Result<Vec<deno_ast::swc::ast::KeyValueProp>, AnyError> {
+    use deno_ast::swc::ast;
+
+    Ok(vec![
+      ast::KeyValueProp {
+        key: ast::PropName::Ident(ast::Ident::new("url".into(), span)),
+        value: Box::new(ast::Expr::Lit(ast::Lit::Str(ast::Str {
+          span,
+          value: module_record.file_name.to_string().into(),
+          kind: ast::StrKind::Synthesized,
+          has_escape: false,
+        }))),
+      },
+      ast::KeyValueProp {
+        key: ast::PropName::Ident(ast::Ident::new("main".into(), span)),
+        value: Box::new(if module_record.is_entry {
+          ast::Expr::Member(ast::MemberExpr {
+            span,
+            obj: Box::new(ast::Expr::MetaProp(ast::MetaPropExpr {
+              span,
+              kind: ast::MetaPropKind::ImportMeta,
+            })),
+            prop: ast::MemberProp::Ident(ast::Ident::new("main".into(), span)),
+          })
+        } else {
+          ast::Expr::Lit(ast::Lit::Bool(ast::Bool { span, value: false }))
+        }),
+      },
+    ])
+  }
+}
+
+impl From<config_file::TsConfig> for deno_ast::EmitOptions {
+  fn from(config: config_file::TsConfig) -> Self {
+    let options: config_file::EmitConfigOptions =
+      serde_json::from_value(config.0).unwrap();
+    let imports_not_used_as_values =
+      match options.imports_not_used_as_values.as_str() {
+        "preserve" => deno_ast::ImportsNotUsedAsValues::Preserve,
+        "error" => deno_ast::ImportsNotUsedAsValues::Error,
+        _ => deno_ast::ImportsNotUsedAsValues::Remove,
+      };
+    let (transform_jsx, jsx_automatic, jsx_development) =
+      match options.jsx.as_str() {
+        "react" => (true, false, false),
+        "react-jsx" => (true, true, false),
+        "react-jsxdev" => (true, true, true),
+        _ => (false, false, false),
+      };
+    deno_ast::EmitOptions {
+      emit_metadata: options.emit_decorator_metadata,
+      imports_not_used_as_values,
+      inline_source_map: options.inline_source_map,
+      inline_sources: options.inline_sources,
+      source_map: options.source_map,
+      jsx_automatic,
+      jsx_development,
+      jsx_factory: options.jsx_factory,
+      jsx_fragment_factory: options.jsx_fragment_factory,
+      jsx_import_source: options.jsx_import_source,
+      transform_jsx,
+      var_decl_imports: false,
+    }
+  }
+}
+
 #[cfg(test)]
 mod tests {
   use super::*;
diff --git a/cli/lsp/cache.rs b/cli/lsp/cache.rs
index 16ad76451..562ad78b0 100644
--- a/cli/lsp/cache.rs
+++ b/cli/lsp/cache.rs
@@ -80,6 +80,7 @@ impl CacheServer {
             maybe_resolver,
             None,
             None,
+            None,
           )
           .await;
 
diff --git a/cli/lsp/code_lens.rs b/cli/lsp/code_lens.rs
index d0034069d..853a16f1f 100644
--- a/cli/lsp/code_lens.rs
+++ b/cli/lsp/code_lens.rs
@@ -157,7 +157,7 @@ impl DenoTestCollector {
 
 impl Visit for DenoTestCollector {
   fn visit_call_expr(&mut self, node: &ast::CallExpr) {
-    if let ast::ExprOrSuper::Expr(callee_expr) = &node.callee {
+    if let ast::Callee::Expr(callee_expr) = &node.callee {
       match callee_expr.as_ref() {
         ast::Expr::Ident(ident) => {
           if self.test_vars.contains(&ident.sym.to_string()) {
@@ -165,13 +165,11 @@ impl Visit for DenoTestCollector {
           }
         }
         ast::Expr::Member(member_expr) => {
-          if let ast::Expr::Ident(ns_prop_ident) = member_expr.prop.as_ref() {
+          if let ast::MemberProp::Ident(ns_prop_ident) = &member_expr.prop {
             if ns_prop_ident.sym.to_string() == "test" {
-              if let ast::ExprOrSuper::Expr(obj_expr) = &member_expr.obj {
-                if let ast::Expr::Ident(ident) = obj_expr.as_ref() {
-                  if ident.sym.to_string() == "Deno" {
-                    self.check_call_expr(node, &ns_prop_ident.span);
-                  }
+              if let ast::Expr::Ident(ident) = member_expr.obj.as_ref() {
+                if ident.sym.to_string() == "Deno" {
+                  self.check_call_expr(node, &ns_prop_ident.span);
                 }
               }
             }
@@ -219,16 +217,12 @@ impl Visit for DenoTestCollector {
           }
           // Identify variable assignments where the init is `Deno.test`
           ast::Expr::Member(member_expr) => {
-            if let ast::ExprOrSuper::Expr(expr) = &member_expr.obj {
-              if let ast::Expr::Ident(obj_ident) = expr.as_ref() {
-                if obj_ident.sym.to_string() == "Deno" {
-                  if let ast::Expr::Ident(prop_ident) =
-                    &member_expr.prop.as_ref()
-                  {
-                    if prop_ident.sym.to_string() == "test" {
-                      if let ast::Pat::Ident(binding_ident) = &decl.name {
-                        self.test_vars.insert(binding_ident.id.sym.to_string());
-                      }
+            if let ast::Expr::Ident(obj_ident) = member_expr.obj.as_ref() {
+              if obj_ident.sym.to_string() == "Deno" {
+                if let ast::MemberProp::Ident(prop_ident) = &member_expr.prop {
+                  if prop_ident.sym.to_string() == "test" {
+                    if let ast::Pat::Ident(binding_ident) = &decl.name {
+                      self.test_vars.insert(binding_ident.id.sym.to_string());
                     }
                   }
                 }
diff --git a/cli/main.rs b/cli/main.rs
index d1fda4727..b845a4f49 100644
--- a/cli/main.rs
+++ b/cli/main.rs
@@ -1,6 +1,5 @@
 // Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
 
-mod ast;
 mod auth_tokens;
 mod cache;
 mod checksum;
@@ -475,6 +474,7 @@ async fn info_command(
       maybe_resolver,
       maybe_locker,
       None,
+      None,
     )
     .await;
 
@@ -654,6 +654,7 @@ async fn create_graph_and_maybe_check(
       maybe_resolver,
       maybe_locker,
       None,
+      None,
     )
     .await,
   );
@@ -999,6 +1000,7 @@ async fn run_with_watch(flags: Flags, script: String) -> Result<i32, AnyError> {
         maybe_resolver,
         maybe_locker,
         None,
+        None,
       )
       .await;
       let check_js = ps
diff --git a/cli/ops/runtime_compiler.rs b/cli/ops/runtime_compiler.rs
index 50268b7eb..3d079e2fb 100644
--- a/cli/ops/runtime_compiler.rs
+++ b/cli/ops/runtime_compiler.rs
@@ -217,6 +217,7 @@ async fn op_emit(
       maybe_resolver,
       None,
       None,
+      None,
     )
     .await,
   );
diff --git a/cli/proc_state.rs b/cli/proc_state.rs
index ceff64c54..253878872 100644
--- a/cli/proc_state.rs
+++ b/cli/proc_state.rs
@@ -382,10 +382,9 @@ impl ProcState {
         let graph_data = self.graph_data.read();
         let found_specifier = graph_data.follow_redirect(specifier);
         match graph_data.get(&found_specifier) {
-          Some(_) if !self.reload => Box::pin(futures::future::ready((
-            specifier.clone(),
-            Err(anyhow!("")),
-          ))),
+          Some(_) if !self.reload => {
+            Box::pin(futures::future::ready(Err(anyhow!(""))))
+          }
           _ => self.inner.load(specifier, is_dynamic),
         }
       }
@@ -403,6 +402,7 @@ impl ProcState {
       maybe_resolver,
       maybe_locker,
       None,
+      None,
     )
     .await;
     // If there was a locker, validate the integrity of all the modules in the
diff --git a/cli/tools/doc.rs b/cli/tools/doc.rs
index 5b258a540..1ef2e29eb 100644
--- a/cli/tools/doc.rs
+++ b/cli/tools/doc.rs
@@ -30,10 +30,10 @@ struct StubDocLoader;
 impl Loader for StubDocLoader {
   fn load(
     &mut self,
-    specifier: &ModuleSpecifier,
+    _specifier: &ModuleSpecifier,
     _is_dynamic: bool,
   ) -> LoadFuture {
-    Box::pin(future::ready((specifier.clone(), Ok(None))))
+    Box::pin(future::ready(Ok(None)))
   }
 }
 
@@ -74,18 +74,16 @@ impl Loader for DocLoader {
     let specifier = specifier.clone();
     let ps = self.ps.clone();
     async move {
-      let result = ps
-        .file_fetcher
+      ps.file_fetcher
         .fetch(&specifier, &mut Permissions::allow_all())
         .await
         .map(|file| {
           Some(LoadResponse {
-            specifier: specifier.clone(),
+            specifier,
             content: file.source.clone(),
             maybe_headers: file.maybe_headers,
           })
-        });
-      (specifier.clone(), result)
+        })
     }
     .boxed_local()
   }
@@ -113,6 +111,7 @@ pub async fn print_docs(
       None,
       None,
       None,
+      None,
     )
     .await;
     let doc_parser =
@@ -152,6 +151,7 @@ pub async fn print_docs(
       Some(&resolver),
       None,
       None,
+      None,
     )
     .await;
     let doc_parser =
diff --git a/cli/tools/repl/session.rs b/cli/tools/repl/session.rs
index d8276396a..5d458189f 100644
--- a/cli/tools/repl/session.rs
+++ b/cli/tools/repl/session.rs
@@ -1,10 +1,9 @@
 // Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
 
-use crate::ast::transpile;
-use crate::ast::Diagnostics;
-use crate::ast::ImportsNotUsedAsValues;
 use crate::colors;
 use crate::lsp::ReplLanguageServer;
+use deno_ast::DiagnosticsError;
+use deno_ast::ImportsNotUsedAsValues;
 use deno_core::error::AnyError;
 use deno_core::futures::FutureExt;
 use deno_core::serde_json::json;
@@ -184,7 +183,7 @@ impl ReplSession {
           Some(diagnostic) => {
             Ok(EvaluationOutput::Error(format_diagnostic(diagnostic)))
           }
-          None => match err.downcast_ref::<Diagnostics>() {
+          None => match err.downcast_ref::<DiagnosticsError>() {
             Some(diagnostics) => Ok(EvaluationOutput::Error(
               diagnostics
                 .0
@@ -311,9 +310,8 @@ impl ReplSession {
       scope_analysis: false,
     })?;
 
-    let transpiled_src = transpile(
-      &parsed_module,
-      &crate::ast::EmitOptions {
+    let transpiled_src = parsed_module
+      .transpile(&deno_ast::EmitOptions {
         emit_metadata: false,
         source_map: false,
         inline_source_map: false,
@@ -326,10 +324,9 @@ impl ReplSession {
         jsx_factory: "React.createElement".into(),
         jsx_fragment_factory: "React.Fragment".into(),
         jsx_import_source: None,
-        repl_imports: true,
-      },
-    )?
-    .0;
+        var_decl_imports: true,
+      })?
+      .text;
 
     let value = self
       .evaluate_expression(&format!(
diff --git a/cli/tools/test.rs b/cli/tools/test.rs
index e5f03a19c..d991ef1ec 100644
--- a/cli/tools/test.rs
+++ b/cli/tools/test.rs
@@ -1,6 +1,5 @@
 // Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
 
-use crate::ast::Location;
 use crate::cache;
 use crate::cache::CacherLoader;
 use crate::colors;
@@ -535,9 +534,10 @@ async fn test_specifier(
 }
 
 fn extract_files_from_regex_blocks(
-  location: &Location,
+  specifier: &ModuleSpecifier,
   source: &str,
   media_type: MediaType,
+  file_line_index: usize,
   blocks_regex: &Regex,
   lines_regex: &Regex,
 ) -> Result<Vec<File>, AnyError> {
@@ -594,9 +594,9 @@ fn extract_files_from_regex_blocks(
 
       let file_specifier = deno_core::resolve_url_or_path(&format!(
         "{}${}-{}{}",
-        location.specifier,
-        location.line + line_offset,
-        location.line + line_offset + line_count,
+        specifier,
+        file_line_index + line_offset + 1,
+        file_line_index + line_offset + line_count + 1,
         file_media_type.as_ts_extension(),
       ))
       .unwrap();
@@ -642,12 +642,11 @@ fn extract_files_from_source_comments(
       true
     })
     .flat_map(|comment| {
-      let location = Location::from_pos(&parsed_source, comment.span.lo);
-
       extract_files_from_regex_blocks(
-        &location,
+        specifier,
         &comment.text,
         media_type,
+        parsed_source.source().line_index(comment.span.lo),
         &blocks_regex,
         &lines_regex,
       )
@@ -663,19 +662,14 @@ fn extract_files_from_fenced_blocks(
   source: &str,
   media_type: MediaType,
 ) -> Result<Vec<File>, AnyError> {
-  let location = Location {
-    specifier: specifier.to_string(),
-    line: 1,
-    col: 0,
-  };
-
   let blocks_regex = Regex::new(r"```([^\r\n]*)\r?\n([\S\s]*?)```")?;
   let lines_regex = Regex::new(r"(?:\# ?)?(.*)")?;
 
   extract_files_from_regex_blocks(
-    &location,
+    specifier,
     source,
     media_type,
+    /* file line index */ 0,
     &blocks_regex,
     &lines_regex,
   )
@@ -1150,6 +1144,7 @@ pub async fn run_tests_with_watch(
         maybe_resolver,
         maybe_locker,
         None,
+        None,
       )
       .await;
       graph_valid(&graph, !no_check, check_js)?;
diff --git a/cli/tsc.rs b/cli/tsc.rs
index a2265e36f..001cfaf5d 100644
--- a/cli/tsc.rs
+++ b/cli/tsc.rs
@@ -689,7 +689,7 @@ mod tests {
           })
         })
         .map_err(|err| err.into());
-      Box::pin(future::ready((specifier.clone(), response)))
+      Box::pin(future::ready(response))
     }
   }
 
@@ -711,6 +711,7 @@ mod tests {
       None,
       None,
       None,
+      None,
     )
     .await;
     State::new(
@@ -737,6 +738,7 @@ mod tests {
       None,
       None,
       None,
+      None,
     )
     .await;
     let config = TsConfig::new(json!({