Fix default export workflow function transformation in workflow mode

.changeset/fix-default-export-workflow.md

@@ -0,0 +1,5 @@
+---
+"@workflow/swc-plugin": patch
+---
+
+Fix default export workflow function transformation in workflow mode

packages/swc-plugin-workflow/transform/tests/fixture/anonymous-default-workflow/input.js

@@ -0,0 +1,7 @@
+// Test anonymous default export workflow
+export default async function() {
+  'use workflow';
+  const result = await someStep();
+  return result;
+}
+

packages/swc-plugin-workflow/transform/tests/fixture/anonymous-default-workflow/output-client.js

@@ -0,0 +1,7 @@
+// Test anonymous default export workflow
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+const __default = async function() {
+    throw new Error("You attempted to execute workflow __default function directly. To start a workflow, use start(__default) from workflow/api");
+};
+__default.workflowId = "workflow//input.js//__default";
+export default __default;

packages/swc-plugin-workflow/transform/tests/fixture/anonymous-default-workflow/output-step.js

@@ -0,0 +1,7 @@
+// Test anonymous default export workflow
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+export default async function() {
+    'use workflow';
+    const result = await someStep();
+    return result;
+}

packages/swc-plugin-workflow/transform/tests/fixture/anonymous-default-workflow/output-workflow.js

@@ -0,0 +1,8 @@
+// Test anonymous default export workflow
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+const __default = async function() {
+    const result = await someStep();
+    return result;
+};
+__default.workflowId = "workflow//input.js//__default";
+export default __default;

packages/swc-plugin-workflow/transform/tests/fixture/default-arrow-workflow/input.js

@@ -0,0 +1,7 @@
+// Test default export arrow workflow
+export default async (data) => {
+  'use workflow';
+  const processed = await processData(data);
+  return processed;
+};
+

packages/swc-plugin-workflow/transform/tests/fixture/default-arrow-workflow/output-client.js

@@ -0,0 +1,7 @@
+// Test default export arrow workflow
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+const __default = async (data)=>{
+    throw new Error("You attempted to execute workflow __default function directly. To start a workflow, use start(__default) from workflow/api");
+};
+__default.workflowId = "workflow//input.js//__default";
+export default __default;

packages/swc-plugin-workflow/transform/tests/fixture/default-arrow-workflow/output-step.js

@@ -0,0 +1,7 @@
+// Test default export arrow workflow
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+export default (async (data)=>{
+    'use workflow';
+    const processed = await processData(data);
+    return processed;
+});

packages/swc-plugin-workflow/transform/tests/fixture/default-arrow-workflow/output-workflow.js

@@ -0,0 +1,8 @@
+// Test default export arrow workflow
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+const __default = async (data)=>{
+    const processed = await processData(data);
+    return processed;
+};
+__default.workflowId = "workflow//input.js//__default";
+export default __default;

packages/swc-plugin-workflow/transform/tests/fixture/default-workflow-collision/input.js

@@ -0,0 +1,13 @@
+// Existing variable named __default
+const __default = "existing variable";
+
+// Use it to avoid unused variable
+console.log(__default);
+
+// Anonymous default export should get unique name (__default$1)
+export default async function() {
+  'use workflow';
+  const result = await someStep();
+  return result;
+}
+

packages/swc-plugin-workflow/transform/tests/fixture/default-workflow-collision/output-client.js

@@ -0,0 +1,10 @@
+// Existing variable named __default
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default$1"}}}}*/;
+const __default = "existing variable";
+// Use it to avoid unused variable
+console.log(__default);
+const __default$1 = async function() {
+    throw new Error("You attempted to execute workflow __default$1 function directly. To start a workflow, use start(__default$1) from workflow/api");
+};
+__default$1.workflowId = "workflow//input.js//__default$1";
+export default __default$1;

packages/swc-plugin-workflow/transform/tests/fixture/default-workflow-collision/output-step.js

@@ -0,0 +1,11 @@
+// Existing variable named __default
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default$1"}}}}*/;
+const __default = "existing variable";
+// Use it to avoid unused variable
+console.log(__default);
+// Anonymous default export should get unique name (__default$1)
+export default async function() {
+    'use workflow';
+    const result = await someStep();
+    return result;
+}

packages/swc-plugin-workflow/transform/tests/fixture/default-workflow-collision/output-workflow.js

@@ -0,0 +1,11 @@
+// Existing variable named __default
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default$1"}}}}*/;
+const __default = "existing variable";
+// Use it to avoid unused variable
+console.log(__default);
+const __default$1 = async function() {
+    const result = await someStep();
+    return result;
+};
+__default$1.workflowId = "workflow//input.js//__default$1";
+export default __default$1;

packages/swc-plugin-workflow/transform/tests/fixture/expr-fn-default-workflow/input.js

@@ -0,0 +1,5 @@
+export default async function() {
+  'use workflow';
+  const result = await someStep();
+  return result;
+}

packages/swc-plugin-workflow/transform/tests/fixture/expr-fn-default-workflow/output-client.js

@@ -0,0 +1,6 @@
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+const __default = async function() {
+    throw new Error("You attempted to execute workflow __default function directly. To start a workflow, use start(__default) from workflow/api");
+};
+__default.workflowId = "workflow//input.js//__default";
+export default __default;

packages/swc-plugin-workflow/transform/tests/fixture/expr-fn-default-workflow/output-step.js

@@ -0,0 +1,6 @@
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+export default async function() {
+    'use workflow';
+    const result = await someStep();
+    return result;
+}

packages/swc-plugin-workflow/transform/tests/fixture/expr-fn-default-workflow/output-workflow.js

@@ -0,0 +1,7 @@
+/**__internal_workflows{"workflows":{"input.js":{"default":{"workflowId":"workflow//input.js//__default"}}}}*/;
+const __default = async function() {
+    const result = await someStep();
+    return result;
+};
+__default.workflowId = "workflow//input.js//__default";
+export default __default;

packages/swc-plugin-workflow/transform/tests/fixture/workflow-client-property/output-client.js

@@ -1,5 +1,5 @@
 // Test workflow functions in client mode
-/**__internal_workflows{"workflows":{"input.js":{"arrowWorkflow":{"workflowId":"workflow//input.js//arrowWorkflow"},"defaultWorkflow":{"workflowId":"workflow//input.js//defaultWorkflow"},"internalWorkflow":{"workflowId":"workflow//input.js//internalWorkflow"},"myWorkflow":{"workflowId":"workflow//input.js//myWorkflow"}}}}*/;
+/**__internal_workflows{"workflows":{"input.js":{"arrowWorkflow":{"workflowId":"workflow//input.js//arrowWorkflow"},"default":{"workflowId":"workflow//input.js//defaultWorkflow"},"internalWorkflow":{"workflowId":"workflow//input.js//internalWorkflow"},"myWorkflow":{"workflowId":"workflow//input.js//myWorkflow"}}}}*/;
 export async function myWorkflow() {
     throw new Error("You attempted to execute workflow myWorkflow function directly. To start a workflow, use start(myWorkflow) from workflow/api");
 }

packages/swc-plugin-workflow/transform/tests/fixture/workflow-client-property/output-step.js

@@ -1,5 +1,5 @@
 // Test workflow functions in client mode
-/**__internal_workflows{"workflows":{"input.js":{"arrowWorkflow":{"workflowId":"workflow//input.js//arrowWorkflow"},"defaultWorkflow":{"workflowId":"workflow//input.js//defaultWorkflow"},"internalWorkflow":{"workflowId":"workflow//input.js//internalWorkflow"},"myWorkflow":{"workflowId":"workflow//input.js//myWorkflow"}}}}*/;
+/**__internal_workflows{"workflows":{"input.js":{"arrowWorkflow":{"workflowId":"workflow//input.js//arrowWorkflow"},"default":{"workflowId":"workflow//input.js//defaultWorkflow"},"internalWorkflow":{"workflowId":"workflow//input.js//internalWorkflow"},"myWorkflow":{"workflowId":"workflow//input.js//myWorkflow"}}}}*/;
 export async function myWorkflow() {
     'use workflow';
     const result = await someStep();

packages/swc-plugin-workflow/transform/tests/fixture/workflow-client-property/output-workflow.js

@@ -1,5 +1,5 @@
 // Test workflow functions in client mode
-/**__internal_workflows{"workflows":{"input.js":{"arrowWorkflow":{"workflowId":"workflow//input.js//arrowWorkflow"},"defaultWorkflow":{"workflowId":"workflow//input.js//defaultWorkflow"},"internalWorkflow":{"workflowId":"workflow//input.js//internalWorkflow"},"myWorkflow":{"workflowId":"workflow//input.js//myWorkflow"}}}}*/;
+/**__internal_workflows{"workflows":{"input.js":{"arrowWorkflow":{"workflowId":"workflow//input.js//arrowWorkflow"},"default":{"workflowId":"workflow//input.js//defaultWorkflow"},"internalWorkflow":{"workflowId":"workflow//input.js//internalWorkflow"},"myWorkflow":{"workflowId":"workflow//input.js//myWorkflow"}}}}*/;
 export async function myWorkflow() {
     const result = await someStep();
     return result;
@@ -23,4 +23,4 @@ export function regularFunction() {
 }
 myWorkflow.workflowId = "workflow//input.js//myWorkflow";
 arrowWorkflow.workflowId = "workflow//input.js//arrowWorkflow";
-$$default.workflowId = "workflow//input.js//$$default";
+defaultWorkflow.workflowId = "workflow//input.js//defaultWorkflow";