feat(sassimportentry): implement sassimportentry

Author: kwonoj

src/interop/importer/sassImportEntry.ts

@@ -0,0 +1,106 @@
+import { log } from '../../util/logger';
+import { StringMethodInterface } from '../interopUtility';
+import { wrapSassImporter } from './wrapSassImporter';
+
+/**
+ * Interop interface to `Sass_Import_Entry`
+ *
+ * This interface doesn't implements ownership api
+ * sass_import_take_source / sass_import_take_srcmap
+ */
+interface SassImportEntryInterface {
+  /**
+   * Property accessor to `sass_import_set_error` and `sass_import_get_error_(line|column|message)`
+   */
+  error: { message: string; line: number; column: number };
+  /**
+   * Property accessor to `sass_import_get_imp_path`
+   */
+  readonly importPath: string;
+  /**
+   * Property accessor to `sass_import_get_abs_path`
+   */
+  readonly absPath: string;
+  /**
+   * Property accessor to `sass_import_get_source`
+   */
+  readonly source: string;
+  /**
+   * Property accessor to `sass_import_get_srcmap`
+   */
+  readonly sourceMap: string;
+
+  /**
+   * Release allocated memory with created instance.
+   * Accessor to sass_delete_import
+   */
+  dispose(): void;
+}
+
+class SassImportEntry implements SassImportEntryInterface {
+  /**
+   * Raw pointer to `struct Sass_Import_Entry*`
+   * @internal
+   */
+  private readonly sassImportEntryPtr: number;
+  constructor(
+    private readonly cwrapImporter: ReturnType<typeof wrapSassImporter>,
+    private readonly strMethod: StringMethodInterface,
+    rel: string,
+    abs: string,
+    source: string,
+    sourceMap: string
+  ) {
+    //make_import_entry internally just calls make_import
+    this.sassImportEntryPtr = this.cwrapImporter.make_import(
+      this.strMethod.alloc(rel),
+      this.strMethod.alloc(abs),
+      this.strMethod.alloc(source),
+      this.strMethod.alloc(sourceMap)
+    );
+    log(`SassImportEntry: created new instance`, { sassOptionsPtr: this.sassImportEntryPtr });
+  }
+
+  public get error(): { message: string; line: number; column: number } {
+    const column = this.cwrapImporter.import_get_error_column(this.sassImportEntryPtr);
+    const line = this.cwrapImporter.import_get_error_line(this.sassImportEntryPtr);
+    const error = this.cwrapImporter.import_get_error_message(this.sassImportEntryPtr);
+
+    return {
+      column,
+      line,
+      message: this.strMethod.ptrToString(error)
+    };
+  }
+
+  public set error({ message, line, column }: { message: string; line: number; column: number }) {
+    const messagePtr = this.strMethod.alloc(message);
+    this.cwrapImporter.import_set_error(this.sassImportEntryPtr, messagePtr, line, column);
+  }
+
+  public get importPath(): string {
+    const pathPtr = this.cwrapImporter.import_get_imp_path(this.sassImportEntryPtr);
+    return this.strMethod.ptrToString(pathPtr);
+  }
+
+  public get absPath(): string {
+    const pathPtr = this.cwrapImporter.import_get_abs_path(this.sassImportEntryPtr);
+    return this.strMethod.ptrToString(pathPtr);
+  }
+
+  public get source(): string {
+    const sourcePtr = this.cwrapImporter.import_get_source(this.sassImportEntryPtr);
+    return this.strMethod.ptrToString(sourcePtr);
+  }
+
+  public get sourceMap(): string {
+    const sourceMapPtr = this.cwrapImporter.import_get_srcmap(this.sassImportEntryPtr);
+    return this.strMethod.ptrToString(sourceMapPtr);
+  }
+
+  public dispose(): void {
+    this.cwrapImporter.delete_import(this.sassImportEntryPtr);
+  }
+}
+
+export { SassImportEntryInterface, SassImportEntry };