Support for binary files

lib/CachedSource.js

@@ -30,8 +30,11 @@ class CachedSource extends Source {
 
 	size() {
 		if(typeof this._cachedSize !== "undefined") return this._cachedSize;
-		if(typeof this._cachedSource !== "undefined")
+		if(typeof this._cachedSource !== "undefined") {
+			if(this._cachedSource instanceof ArrayBuffer)
+				return this._cachedSize = this._cachedSource.byteLength;
 			return this._cachedSize = this._cachedSource.length;
+		}
 		return this._cachedSize = this._source.size();
 	}
 

lib/ReplaceSource.js

@@ -266,7 +266,7 @@ class ReplaceSource extends Source {
 			// Recurse with remainder of the string as there may be multiple replaces within a single node
 			node = node.substr(splitPosition);
 			position += splitPosition;
-		} while (true);
+		} while(true);
 	}
 }
 

lib/Source.js

@@ -14,6 +14,7 @@ class Source {
 	}
 
 	size() {
+		if(this.source() instanceof ArrayBuffer) return this.source().byteLength;
 		return this.source().length;
 	}
 

test/OriginalSource.js

@@ -56,4 +56,9 @@ describe("OriginalSource", function() {
 
 		resultMap.mappings.should.be.eql("AAAA;AACA;AACA");
 	});
+
+	it("should return the correct size for binary files", function() {
+		var source = new OriginalSource(new ArrayBuffer(256), "file.wasm");
+		source.size().should.be.eql(256);
+	});
 });