49 lines
4.3 KiB
Markdown
49 lines
4.3 KiB
Markdown
---
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source_files:
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- Common/DTS.Common/Interface/TestSetups/Diagnostics/IDiagnosticsTreeView.cs
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- Common/DTS.Common/Interface/TestSetups/Diagnostics/IDiagnosticsViewModel.cs
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generated_at: "2026-04-16T03:11:41.366746+00:00"
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model: "Qwen/Qwen3-Coder-Next-FP8"
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schema_version: 1
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sha256: "e5167b993a5cbdee"
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---
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# Diagnostics
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## 1. Purpose
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This module defines the foundational interfaces for a diagnostics view-model/view architecture within the test setup diagnostics subsystem. It establishes a contract for a diagnostics-specific view (`IDiagnosticsTreeView`) that inherits from a base view abstraction, and a corresponding view-model (`IDiagnosticsViewModel`) that manages the view lifecycle—including explicit unsetting—and enforces a bidirectional relationship with its view. Its role is to decouple diagnostics UI presentation logic from implementation details, enabling test setup diagnostics features to be implemented consistently with the broader DTS architecture.
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## 2. Public Interface
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### `IDiagnosticsTreeView`
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- **Signature**: `public interface IDiagnosticsTreeView : IBaseView`
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- **Behavior**: Represents the view layer for diagnostics UI. It inherits from `IBaseView`, implying it adheres to a common view contract (e.g., lifecycle hooks, data binding support), though the exact members of `IBaseView` are not visible here. It carries no additional members beyond its type identity.
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### `IDiagnosticsViewModel`
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- **Signature**: `public interface IDiagnosticsViewModel : IBaseViewModel`
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- **Members**:
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- `IDiagnosticsTreeView View { get; set; }`
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- Gets or sets the associated diagnostics view instance. This enforces a one-to-one view-model/view pairing.
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- `void Unset()`
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- Explicitly detaches or cleans up the view-model’s association with its view. Likely intended to break circular references, release resources, or signal view disposal.
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## 3. Invariants
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- `IDiagnosticsTreeView` must be implemented by a class that satisfies the contract of `IBaseView`.
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- `IDiagnosticsViewModel` must be implemented by a class that satisfies the contract of `IBaseViewModel` (e.g., likely includes `Initialize`, `Load`, etc., though not visible here).
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- The `View` property of `IDiagnosticsViewModel` must be settable and gettable, implying the view-model expects to hold a reference to its view and may be re-bound to a new view instance.
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- The `Unset()` method must be callable at any time, but is likely intended to be called *before* view disposal to cleanly sever the view-view-model link.
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- Circular reference between `View` and `ViewModel` is implied (via `IBaseView`/`IBaseViewModel` conventions), and `Unset()` is critical to avoid memory leaks.
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## 4. Dependencies
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- **Depends on**:
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- `DTS.Common.Base.IBaseView` and `DTS.Common.Base.IBaseViewModel` (from the `DTS.Common.Base` namespace). These base interfaces define core view/view-model behavior (e.g., lifecycle, data context), but their definitions are not included here.
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- **Depended on by**:
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- Likely concrete implementations of diagnostics views and view-models (e.g., `DiagnosticsTreeView`, `DiagnosticsViewModel`) in other modules.
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- Any UI framework or DI container that resolves diagnostics components using these interfaces.
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- Test setup infrastructure that coordinates diagnostics UI rendering (e.g., a diagnostics host or shell).
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## 5. Gotchas
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- **Circular reference risk**: The `View` property on `IDiagnosticsViewModel` and the corresponding `ViewModel` property on `IBaseView` (implied by inheritance) create a bidirectional reference. Failure to call `Unset()` before view disposal may cause memory leaks.
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- **`Unset()` semantics undefined**: The source provides no documentation on *when* or *how* `Unset()` should be called (e.g., before `Dispose`, during navigation, or on view model reset). Its behavior (e.g., nulling `View`, raising events, cleaning subscriptions) is implementation-specific.
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- **No explicit data members**: Neither interface exposes properties or commands for diagnostics-specific data (e.g., log entries, test status). This suggests diagnostics data is exposed via `IBaseViewModel` (e.g., through a `DataContext`), or that this interface is intentionally minimal for extensibility.
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- **No versioning or stability guarantees**: As a proprietary codebase, behavior may rely on internal conventions not visible in these interfaces alone. |