From 77f07d7f4f6eae13e6df72e7f7b2cffb3e7f15f2 Mon Sep 17 00:00:00 2001
From: Jeffrey Li <jeffrey@vectorwyse.com>
Date: Thu, 17 Jun 2021 00:29:22 -0400
Subject: [PATCH] preprocess to ignore styles and handle typescript

---
 package.json         |  3 ++-
 src/rollup-plugin.ts | 14 +++++++++++++-
 yarn.lock            | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 5408850..cf0b530 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,8 @@
     "prettier": "^2.2.1",
     "rollup": "^2.36.0",
     "rollup-plugin-svelte": "^7.0.0",
-    "svelte": "^3.31.2"
+    "svelte": "^3.31.2",
+    "svelte-preprocess": "^4.7.3"
   },
   "devDependencies": {
     "@types/fs-extra": "^9.0.6",
diff --git a/src/rollup-plugin.ts b/src/rollup-plugin.ts
index 88036d4..0fe8bb1 100644
--- a/src/rollup-plugin.ts
+++ b/src/rollup-plugin.ts
@@ -7,6 +7,8 @@ import writeMarkdown, { WriteMarkdownOptions } from "./writer/writer-markdown";
 import ComponentParser, { ParsedComponent } from "./ComponentParser";
 import { getSvelteEntry } from "./get-svelte-entry";
 import { ParsedExports, parseExports } from "./parse-exports";
+import { preprocess } from "svelte/compiler";
+import { replace, typescript } from "svelte-preprocess";
 
 export interface PluginSveldOptions {
   glob?: boolean;
@@ -77,10 +79,20 @@ export async function generateBundle(input: string, glob: boolean) {
 
     if (ext === '.svelte') {
       const source = await fs.readFile(path.resolve(dir, filePath), "utf-8");
+
+      const { code: processed } = await preprocess(
+        source,
+        [
+          typescript(),
+          replace([[/<style.+<\/style>/gims, ""]]),
+        ],
+        { filename: path.basename(filePath) }
+      );
+
       components.set(moduleName, {
         moduleName,
         filePath,
-        ...parser.parseSvelteComponent(source, {
+        ...parser.parseSvelteComponent(processed, {
           moduleName,
           filePath,
         }),
diff --git a/yarn.lock b/yarn.lock
index d07ccef..422b599 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -71,6 +71,11 @@
   resolved "https://registry.npmjs.org/@types/prettier/-/prettier-2.1.6.tgz#f4b1efa784e8db479cdb8b14403e2144b1e9ff03"
   integrity sha512-6gOkRe7OIioWAXfnO/2lFiv+SJichKVSys1mSsgyrYHSEjk8Ctv4tSR/Odvnu+HWlH2C8j53dahU03XmQdd5fA==
 
+"@types/pug@^2.0.4":
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/@types/pug/-/pug-2.0.4.tgz#8772fcd0418e3cd2cc171555d73007415051f4b2"
+  integrity sha1-h3L80EGOPNLMFxVV1zAHQVBR9LI=
+
 "@types/resolve@1.17.1":
   version "1.17.1"
   resolved "https://registry.npmjs.org/@types/resolve/-/resolve-1.17.1.tgz#3afd6ad8967c77e4376c598a82ddd58f46ec45d6"
@@ -78,6 +83,13 @@
   dependencies:
     "@types/node" "*"
 
+"@types/sass@^1.16.0":
+  version "1.16.0"
+  resolved "https://registry.yarnpkg.com/@types/sass/-/sass-1.16.0.tgz#b41ac1c17fa68ffb57d43e2360486ef526b3d57d"
+  integrity sha512-2XZovu4NwcqmtZtsBR5XYLw18T8cBCnU2USFHTnYLLHz9fkhnoEMoDsqShJIOFsFhn5aJHjweiUUdTrDGujegA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/strip-bom@^3.0.0":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/strip-bom/-/strip-bom-3.0.0.tgz#14a8ec3956c2e81edb7520790aecf21c290aebd2"
@@ -313,6 +325,11 @@ defined@^1.0.0:
   resolved "https://registry.npmjs.org/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
   integrity sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=
 
+detect-indent@^6.0.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-6.1.0.tgz#592485ebbbf6b3b1ab2be175c8393d04ca0d57e6"
+  integrity sha512-reYkTUJAZb9gUuZ2RvVCNhVHdg62RHnJ7WJl8ftMi4diZ6NWlciOzQN88pUhSELEwflJht4oQDv0F0BMlwaYtA==
+
 diff@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
@@ -804,6 +821,11 @@ micromatch@^4.0.2:
     braces "^3.0.1"
     picomatch "^2.0.5"
 
+min-indent@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/min-indent/-/min-indent-1.0.1.tgz#a63f681673b30571fbe8bc25686ae746eefa9869"
+  integrity sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==
+
 minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
@@ -1239,6 +1261,13 @@ strip-indent@^1.0.1:
   dependencies:
     get-stdin "^4.0.1"
 
+strip-indent@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-3.0.0.tgz#c32e1cee940b6b3432c771bc2c54bcce73cd3001"
+  integrity sha512-laJTa3Jb+VQpaC6DseHhF7dXVqHTfJPCRDaEbid/drOhgitgYku/letMUqOXFoWV0zIIUbjpdH2t+tYj4bQMRQ==
+  dependencies:
+    min-indent "^1.0.0"
+
 strip-json-comments@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
@@ -1251,6 +1280,16 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
+svelte-preprocess@^4.7.3:
+  version "4.7.3"
+  resolved "https://registry.yarnpkg.com/svelte-preprocess/-/svelte-preprocess-4.7.3.tgz#454fa059c2400b15e7a3caeca18993cff9df0e96"
+  integrity sha512-Zx1/xLeGOIBlZMGPRCaXtlMe4ZA0faato5Dc3CosEqwu75MIEPuOstdkH6cy+RYTUYynoxzNaDxkPX4DbrPwRA==
+  dependencies:
+    "@types/pug" "^2.0.4"
+    "@types/sass" "^1.16.0"
+    detect-indent "^6.0.0"
+    strip-indent "^3.0.0"
+
 svelte@^3.31.2:
   version "3.31.2"
   resolved "https://registry.npmjs.org/svelte/-/svelte-3.31.2.tgz#d2ddf6cacbb95e4cc3796207510b660a25586324"