remove params option

Author: davidtkramer

README.md

@@ -253,15 +253,15 @@ contactFactory.rewindSequence();
 
 ### Derived Attributes
 
-Attributes can be derived from other attributes with the `params` option.
+Attributes can be derived from other attributes with the `entity` option.
 
 ```typescript
 const userFactory = createFactory<User>({
   id: 1,
   firstName: 'Alice',
   lastName: 'Smith',
-  fullName({ params }) {
-    return `${params.firstName} ${params.lastName}`;
+  fullName({ entity }) {
+    return `${entity.firstName} ${entity.lastName}`;
   },
 });
 

src/__tests__/factory.test.ts

@@ -643,8 +643,8 @@ describe('DSL', () => {
           .attributes<{ id: number; name: string }>({ id: 1, name: 'name' })
           .trait('evenOdd', (trait) =>
             trait.attributes({
-              name({ params }) {
-                return (params?.id ?? 0) % 2 === 0 ? 'even' : 'odd';
+              name({ entity }) {
+                return (entity?.id ?? 0) % 2 === 0 ? 'even' : 'odd';
               },
             })
           )

src/factory.ts

@@ -48,7 +48,6 @@ type AttributeBuilder<
 ) => Entity[Property];
 type AttributeBuilderParams<Entity, TransientParams> = {
   sequence: number;
-  params: Partial<Entity>;
   entity: Entity;
   transientParams: TransientParams;
 };
@@ -275,7 +274,6 @@ export function createFactory<
           if (typeof attribute === 'function') {
             entity[key] = attribute({
               sequence: definition.sequence.count,
-              params: { ...attributes, ...entity },
               entity: globalAttributeProxy,
               transientParams,
             });
@@ -310,7 +308,6 @@ export function createFactory<
             if (typeof attribute === 'function') {
               entity[key] = attribute({
                 sequence: definition.sequence.count,
-                params: { ...attributes, ...entity },
                 entity: traitAttributeProxy,
                 transientParams: {
                   ...trait.transientParamDefaults,