mirror of
https://github.com/firebase/firebase-ios-sdk
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Andrew Heard
3796a55fdf
Implemented `GeminiLanguageModel`, providing an adapter for Google's Gemini models conforming to Apple's `FoundationModels.LanguageModel` protocol. This PR includes text to text generation capabilities; other modalities and Gemini features will be handled in follow-up PRs. **Note:** The `GeminiLanguageModel` implementation is guarded by the environment variable `GEMINI_LANGUAGE_MODEL`. By default none of the `GeminiLanguageModel` implementation is included. Key additions: - `GeminiLanguageModel`: Implements `LanguageModel` protocol with reasoning capabilities, configuring execution via `ModelResource` and `EndpointConfiguration`. - `GeminiLanguageModelExecutor`: Converts prompt instructions and history into Gemini streaming requests, yielding responses as `LanguageModelSession.ResponseStream`. - `GeminiTranscriptTranslator`: Translates Apple `Transcript` entries and segments into Gemini `Content` structures while preserving thought signatures and validating supported transcript features. - `GeminiLanguageModel.Error` and `GeminiErrorMapper`: Translates Gemini API, HTTP, and network errors into standard `LanguageModelError` cases (`rateLimited`, `timeout`, `guardrailViolation`, `refusal`, and `unsupportedLanguageOrLocale`) or `GeminiLanguageModel.Error` cases (`serviceUnavailable`, `networkFailure`, `modelNotFound`, `apiError`). The `APIError` payload is designed for seamless forward compatibility with both GenerateContent and the upcoming Interactions API. - Testing infrastructure: Adds `ConditionTrait.requireFoundationModels` to conditionally run Foundation Models tests only on supported platforms (macOS 27+, iOS 27+, watchOS 27+, visionOS 27+), along with shared test constants, mock fixtures, and comprehensive unit and integration test suites.
112 lines
3.4 KiB
Swift
112 lines
3.4 KiB
Swift
// Copyright 2026 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import Foundation
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extension ImageResponseFormat {
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/// Optional. The aspect ratio for the image output.
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package enum AspectRatio: Codable, Sendable, Equatable, Hashable {
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/// 1:1 aspect ratio.
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case oneByOne
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/// 2:3 aspect ratio.
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case twoByThree
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/// 3:2 aspect ratio.
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case threeByTwo
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/// 3:4 aspect ratio.
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case threeByFour
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/// 4:3 aspect ratio.
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case fourByThree
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/// 4:5 aspect ratio.
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case fourByFive
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/// 5:4 aspect ratio.
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case fiveByFour
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/// 9:16 aspect ratio.
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case nineBySixteen
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/// 16:9 aspect ratio.
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case sixteenByNine
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/// 21:9 aspect ratio.
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case twentyOneByNine
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/// 1:8 aspect ratio.
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case oneByEight
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/// 8:1 aspect ratio.
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case eightByOne
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/// 1:4 aspect ratio.
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case oneByFour
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/// 4:1 aspect ratio.
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case fourByOne
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/// Unrecognized case.
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///
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/// - Parameter value: The raw string value of the unrecognized enum case.
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case unrecognized(_ value: String)
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}
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}
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// MARK: - RawRepresentable Conformance
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extension ImageResponseFormat.AspectRatio: RawRepresentable {
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package var rawValue: String {
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switch self {
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case .oneByOne: "ASPECT_RATIO_ONE_BY_ONE"
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case .twoByThree: "ASPECT_RATIO_TWO_BY_THREE"
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case .threeByTwo: "ASPECT_RATIO_THREE_BY_TWO"
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case .threeByFour: "ASPECT_RATIO_THREE_BY_FOUR"
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case .fourByThree: "ASPECT_RATIO_FOUR_BY_THREE"
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case .fourByFive: "ASPECT_RATIO_FOUR_BY_FIVE"
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case .fiveByFour: "ASPECT_RATIO_FIVE_BY_FOUR"
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case .nineBySixteen: "ASPECT_RATIO_NINE_BY_SIXTEEN"
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case .sixteenByNine: "ASPECT_RATIO_SIXTEEN_BY_NINE"
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case .twentyOneByNine: "ASPECT_RATIO_TWENTY_ONE_BY_NINE"
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case .oneByEight: "ASPECT_RATIO_ONE_BY_EIGHT"
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case .eightByOne: "ASPECT_RATIO_EIGHT_BY_ONE"
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case .oneByFour: "ASPECT_RATIO_ONE_BY_FOUR"
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case .fourByOne: "ASPECT_RATIO_FOUR_BY_ONE"
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case .unrecognized(let value): value
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}
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}
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package init(rawValue: String) {
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switch rawValue {
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case "ASPECT_RATIO_ONE_BY_ONE": self = .oneByOne
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case "ASPECT_RATIO_TWO_BY_THREE": self = .twoByThree
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case "ASPECT_RATIO_THREE_BY_TWO": self = .threeByTwo
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case "ASPECT_RATIO_THREE_BY_FOUR": self = .threeByFour
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case "ASPECT_RATIO_FOUR_BY_THREE": self = .fourByThree
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case "ASPECT_RATIO_FOUR_BY_FIVE": self = .fourByFive
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case "ASPECT_RATIO_FIVE_BY_FOUR": self = .fiveByFour
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case "ASPECT_RATIO_NINE_BY_SIXTEEN": self = .nineBySixteen
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case "ASPECT_RATIO_SIXTEEN_BY_NINE": self = .sixteenByNine
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case "ASPECT_RATIO_TWENTY_ONE_BY_NINE": self = .twentyOneByNine
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case "ASPECT_RATIO_ONE_BY_EIGHT": self = .oneByEight
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case "ASPECT_RATIO_EIGHT_BY_ONE": self = .eightByOne
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case "ASPECT_RATIO_ONE_BY_FOUR": self = .oneByFour
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case "ASPECT_RATIO_FOUR_BY_ONE": self = .fourByOne
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default: self = .unrecognized(rawValue)
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}
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}
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}
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