add a precondition to sendingResponse state

sebsto · sebsto · commit 9946ac7a316b · 2025-07-24T09:23:26.000+04:00
diff --git a/Sources/AWSLambdaRuntime/LambdaRuntimeClient.swift b/Sources/AWSLambdaRuntime/LambdaRuntimeClient.swift
@@ -598,6 +598,9 @@ private final class LambdaChannelHandler<Delegate: LambdaChannelHandlerDelegate>
             )
 
         case .connected(let context, .sendingResponse):
+
+            precondition(!hasCustomHeaders, "Programming error: Custom headers should not be sent in this state")
+
             try await self.sendResponseBodyPart(
                 byteBuffer,
                 sendHeadWithRequestID: nil,

Original file line number	Diff line number	Diff line change
`@@ -598,6 +598,9 @@ private final class LambdaChannelHandler<Delegate: LambdaChannelHandlerDelegate>`
`598`	`598`	`)`
`599`	`599`
`600`	`600`	`case .connected(let context, .sendingResponse):`
	`601`	`+`
	`602`	`+ precondition(!hasCustomHeaders, "Programming error: Custom headers should not be sent in this state")`
	`603`	`+`
`601`	`604`	`try await self.sendResponseBodyPart(`
`602`	`605`	`byteBuffer,`
`603`	`606`	`sendHeadWithRequestID: nil,`