Sep 23, 2025 · Sep 23, 2025 · Sep 23, 2025 · Sep 24, 2025 · Sep 24, 2025 · Sep 24, 2025
diff --git a/swift/internal/compiling.bzl b/swift/internal/compiling.bzl
    )
    for number, batch in enumerate(batches, 1):
        object_prereqs = dict(prerequisites)
        object_prereqs["compile_step"] = struct(
            action = SWIFT_ACTION_COMPILE_CODEGEN,
            output = ",".join([

        # If there is only one batch (for small libraries, or libraries of any
        # size compiled with whole-module optimization), we omit the requested
        # file paths to eliminate some unneeded work in the worker. It will
        # treat a blank value as "emit all outputs".
        if len(batches) == 1:
            step_detail = ""
        else:
            step_detail = ",".join([
                object.path
                for invocation in batch
                for object in invocation.objects
            ]),
            ])
        object_prereqs["compile_step"] = struct(
            action = SWIFT_ACTION_COMPILE_CODEGEN,
            output = step_detail,
        )

        batch_suffix = ""
        if compile_plan.output_nature.emits_multiple_objects:
            batch_suffix = " ({} of {})".format(number, len(batches))
Original file line number	Diff line number	Diff line change
Expand Up		@@ -841,14 +841,24 @@ def _execute_compile_plan(
		)
		for number, batch in enumerate(batches, 1):
		object_prereqs = dict(prerequisites)
		object_prereqs["compile_step"] = struct(
		action = SWIFT_ACTION_COMPILE_CODEGEN,
		output = ",".join([

		# If there is only one batch (for small libraries, or libraries of any
		# size compiled with whole-module optimization), we omit the requested
		# file paths to eliminate some unneeded work in the worker. It will
		# treat a blank value as "emit all outputs".
		if len(batches) == 1:
		step_detail = ""
		else:
		step_detail = ",".join([
		object.path
		for invocation in batch
		for object in invocation.objects
		]),
		])
		object_prereqs["compile_step"] = struct(
		action = SWIFT_ACTION_COMPILE_CODEGEN,
		output = step_detail,
		)

		batch_suffix = ""
		if compile_plan.output_nature.emits_multiple_objects:
		batch_suffix = " ({} of {})".format(number, len(batches))
Expand Down