ProposalBrokerBase.RequestProposals 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
请求来自给定 caret 和 completionState的所有适用 ProposalSourceBases 的建议。
在放弃其他源之前，允许 groupingDelay 从第一个 ProposalSourceBase 传递完成。
public abstract Microsoft.VisualStudio.Threading.AsyncQueue<Microsoft.VisualStudio.Language.Proposals.ProposalCollectionBase> RequestProposals (Microsoft.VisualStudio.Text.VirtualSnapshotPoint caret, Microsoft.VisualStudio.Language.Proposals.CompletionState? completionState, Microsoft.VisualStudio.Language.Proposals.ProposalScenario scenario, char triggeringCharacter, TimeSpan groupingDelay, System.Threading.CancellationToken cancel);abstract member RequestProposals : Microsoft.VisualStudio.Text.VirtualSnapshotPoint * Microsoft.VisualStudio.Language.Proposals.CompletionState * Microsoft.VisualStudio.Language.Proposals.ProposalScenario * char * TimeSpan * System.Threading.CancellationToken -> Microsoft.VisualStudio.Threading.AsyncQueue<Microsoft.VisualStudio.Language.Proposals.ProposalCollectionBase>Public MustOverride Function RequestProposals (caret As VirtualSnapshotPoint, completionState As CompletionState, scenario As ProposalScenario, triggeringCharacter As Char, groupingDelay As TimeSpan, cancel As CancellationToken) As AsyncQueue(Of ProposalCollectionBase)参数
- caret
- VirtualSnapshotPoint
- completionState
- CompletionState
- scenario
- ProposalScenario
- triggeringCharacter
- Char
- groupingDelay
- TimeSpan
- cancel
- CancellationToken
返回
的 AsyncQueue<T>ProposalCollectionBase。 Complete() 完成所有 ProposalSourceBase操作后，将在队列中调用 。
注解
排队建议的算法如下所示：
1. Call <xref data-throw-if-not-resolved="true" uid="Microsoft.VisualStudio.Language.Proposals.ProposalSourceBase.RequestProposalsAsync(Microsoft.VisualStudio.Text.VirtualSnapshotPoint,Microsoft.VisualStudio.Language.Proposals.CompletionState,Microsoft.VisualStudio.Language.Proposals.ProposalScenario,System.Char,System.Threading.CancellationToken)"></xref> for each source.
2. Wait until one source returns with a non-null/empty result.
3. Wait an additional <code data-dev-comment-type="paramref">groupingDelay</code> to allow other sources to generate results.
4. Enqueue all sources that generated results using the ordering specified by their <xref data-throw-if-not-resolved="true" uid="Microsoft.VisualStudio.Language.Proposals.ProposalSourceProviderBase"></xref>.
5. Enqueue remaining results in their order of completion.