feat(sassoptions): expose importers

Author: kwonoj

src/interop/context.ts

@@ -1,5 +1,6 @@
 import { SassDataContext } from './data/sassDataContext';
 import { SassFileContext, SassSourceContext } from './file/sassFileContext';
+import { wrapSassImporter } from './importer/wrapSassImporter';
 import { buildInteropUtility } from './interopUtility';
 import { SassOptions, SassOptionsInterface } from './options/sassOptions';
 import { wrapSassOptions } from './options/wrapSassOptions';
@@ -14,13 +15,15 @@ import { wrapSassContext } from './wrapSassContext';
 const buildContext = (
   cwrapContext: ReturnType<typeof wrapSassContext>,
   cwrapOptions: ReturnType<typeof wrapSassOptions>,
+  cwrapImporter: ReturnType<typeof wrapSassImporter>,
   interop: ReturnType<typeof buildInteropUtility>
 ) => {
   const { str, mount, unmount } = interop;
 
   return {
     options: {
-      create: () => new SassOptions(cwrapContext, cwrapOptions, mount, unmount, str) as SassOptionsInterface
+      create: () =>
+        new SassOptions(cwrapContext, cwrapOptions, cwrapImporter, mount, unmount, str) as SassOptionsInterface
     },
     file: {
       create: (inputPath: string) => new SassFileContext(inputPath, cwrapContext, str) as SassSourceContext

src/interop/importer/wrapSassImporter.ts

@@ -7,7 +7,7 @@ import { cwrapSignature } from 'emscripten-wasm-loader';
  */
 //TODO: verify return type / param type of cwrapped signature for Sass_Import_Entry
 const wrapSassImporter = (cwrap: cwrapSignature) => ({
-  //Sass_C_Import_Callback sass_make_importer (Sass_C_Import_Fn, void* cookie);
+  //Sass_Importer_Entry sass_make_importer (Sass_Importer_Fn importer, double priority, void* cookie);
   make_importer: cwrap<(importFnPtr: number, cookie: number) => number>(`sass_make_importer`, 'number', [
     'number',
     'number'

src/interop/options/sassOptions.ts

@@ -1,5 +1,8 @@
 import { mountDirectory, unmount } from 'emscripten-wasm-loader';
 import { log } from '../../util/logger';
+import { SassImportEntryInterface } from '../importer/sassImportEntry';
+import { SassImportEntryList } from '../importer/sassImportEntryList';
+import { wrapSassImporter } from '../importer/wrapSassImporter';
 import { StringMethodInterface } from '../interopUtility';
 import { wrapSassContext } from '../wrapSassContext';
 import { wrapSassOptions } from './wrapSassOptions';
@@ -53,6 +56,11 @@ interface SassOptionsInterface {
    */
   inputPath: string;
 
+  /**
+   * Property accessor to `sass_option_(get|set)_c_importers`
+   */
+  importers: Array<SassImportEntryInterface>;
+
   /**
    * Push include path for compilation.
    * Accessor to sass_option_push_include_path
@@ -100,6 +108,11 @@ class SassOptions implements SassOptionsInterface {
    * List of virtual mounted path.
    */
   private readonly mountedPath: Array<string> = [];
+
+  /**
+   * List of importers.
+   */
+  private importersList: SassImportEntryList | null;
   /**
    * Construct new instance of SassOptions.
    *
@@ -112,6 +125,7 @@ class SassOptions implements SassOptionsInterface {
   constructor(
     private readonly cwrapCtx: ReturnType<typeof wrapSassContext>,
     private readonly cwrapOptions: ReturnType<typeof wrapSassOptions>,
+    private readonly cwrapImporter: ReturnType<typeof wrapSassImporter>,
     private readonly mount: ReturnType<typeof mountDirectory>,
     private readonly unmountPath: ReturnType<typeof unmount>,
     private readonly strMethod: StringMethodInterface
@@ -193,6 +207,17 @@ class SassOptions implements SassOptionsInterface {
     this.cwrapOptions.option_set_input_path(this.sassOptionsPtr, this.strMethod.alloc(outPath));
   }
 
+  public get importers(): Array<SassImportEntryInterface> {
+    return !!this.importersList ? this.importersList.entry : [];
+  }
+
+  public set importers(values: Array<SassImportEntryInterface>) {
+    this.importersList = new SassImportEntryList(this.cwrapImporter, values.length);
+    this.importersList.entry = values;
+
+    this.cwrapOptions.option_set_c_importers(this.sassOptionsPtr, this.importersList.sassImportEntryListPtr);
+  }
+
   public addIncludePath(includePath: string): void {
     const mounted = this.mount(includePath);
     this.mountedPath.push(mounted);

src/interop/options/wrapSassOptions.ts

@@ -55,9 +55,11 @@ const wrapSassOptions = (cwrap: cwrapSignature) => ({
   //const char* sass_option_get_source_map_root (struct Sass_Options* options);
   option_get_source_map_root: null,
   //Sass_Importer_List sass_option_get_c_headers (struct Sass_Options* options);
-  sass_option_get_c_headers: null,
+  option_get_c_headers: null,
   //Sass_Importer_List sass_option_get_c_importers (struct Sass_Options* options);
-  sass_option_get_c_importers: null,
+  option_get_c_importers: cwrap<(sassOptionsPtr: number) => number>(`sass_option_get_c_importers`, 'number', [
+    'number'
+  ]),
   //Sass_Function_List sass_option_get_c_functions (struct Sass_Options* options);
   option_get_c_functions: null,
 
@@ -144,7 +146,11 @@ const wrapSassOptions = (cwrap: cwrapSignature) => ({
   //void sass_option_set_c_headers (struct Sass_Options* options, Sass_Importer_List c_headers);
   option_set_c_headers: null,
   //void sass_option_set_c_importers (struct Sass_Options* options, Sass_Importer_List c_importers);
-  option_set_c_importers: null,
+  option_set_c_importers: cwrap<(sassOptionsPtr: number, importersList: number) => void>(
+    `sass_option_set_c_importers`,
+    null,
+    ['number', 'number']
+  ),
   //void sass_option_set_c_functions (struct Sass_Options* options, Sass_Function_List c_functions);
   option_set_c_functions: null,
 

src/sassLoader.ts

@@ -24,7 +24,7 @@ export const sassLoader = (asmModule: SassAsmModule): SassFactory => {
 
   return {
     getVersion: getVersion(asmModule),
-    context: buildContext(cwrapCtx, cwrapOptions, interop),
+    context: buildContext(cwrapCtx, cwrapOptions, cwrapImporter, interop),
     importer: buildImporter(cwrapImporter, interop),
     interop,
     raw: {