[ai] Add WithCallOptions functional option

[loreto]

Summary

Add a new functional option to pass an entire options struct.

How was it tested?

Added unit tests.

Community Contribution License

All community contributions in this pull request are licensed to the project maintainers under the terms of the Apache 2 License.

By creating this pull request I represent that I have the right to license the contributions to the project maintainers under the Apache 2 License as stated in the Community Contribution License.

[Copilot]

Pull Request Overview

Add a new functional option to accept a pre-built api.CallOptions struct and exercise it via unit tests.

• Introduce WithCallOptions in options.go to set the entire CallOptions on a GenerateOptions instance.
• Extend TestCallOptionBuilders in options_test.go with a case for WithCallOptions.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
aisdk/ai/options.go	Adds the WithCallOptions builder function.
aisdk/ai/options_test.go	Adds a unit test case covering WithCallOptions.

[cursor]

Bug: Functional Options Overwrite Instead of Merge

The WithCallOptions function completely overwrites the CallOptions struct. This causes order-dependent behavior, erasing previously set options from other functional options (e.g., WithMaxOutputTokens, WithProviderMetadata). It also wipes out the default ProviderMetadata initialization from buildGenerateConfig, potentially leading to nil pointer issues. This overwriting is inconsistent with the expected merging nature of functional options.

aisdk/ai/options.go#L131-L136

opensource/aisdk/ai/options.go

Lines 131 to 136 in 8735233

	// This allows passing a pre-configured CallOptions instance.
	func WithCallOptions(callOptions api.CallOptions) GenerateOption {
	return func(o *GenerateOptions) {
	o.CallOptions = callOptions
	}
	}

Fix in Cursor • Fix in Web

---

BugBot free trial expires on July 22, 2025
You have used $0.00 of your $50.00 spend limit so far. Manage your spend limit in the Cursor dashboard.

Was this report helpful? Give feedback by reacting with 👍 or 👎