fix: stringify as json when contributing to a string

Signed-off-by: Louis Mandel <[email protected]>

Author: mandel

src/pdl/pdl_interpreter.py

@@ -2509,7 +2509,12 @@ def contribute(
         loc: Optional[PdlLocationType] = None,
         block: Optional[BlockType] = None,
     ) -> "FileAggregator":
-        print(f"{self.prefix}{result}", file=self.fp, end=self.suffix, flush=self.flush)
+        print(
+            f"{self.prefix}{stringify(result)}",
+            file=self.fp,
+            end=self.suffix,
+            flush=self.flush,
+        )
         return self
 
 

src/pdl/pdl_utils.py

@@ -15,6 +15,7 @@
     get_sampling_defaults,
 )
 from .pdl_dumper import as_json, block_to_dict
+from .pdl_lazy import PdlLazy
 
 RefT = TypeVar("RefT")
 
@@ -64,6 +65,8 @@ async def to_async(value: ToAsyncT) -> ToAsyncT:
 
 
 def stringify(result):
+    if isinstance(result, PdlLazy):
+        result = result.result()
     if isinstance(result, str):
         s = result
     elif isinstance(result, FunctionBlock):