47 lines
1.8 KiB
Go
47 lines
1.8 KiB
Go
// Copyright 2026 Alibaba Group
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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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package pipeline
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// Handler is the core abstraction for pipeline extensions. Each
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// handler declares the phase it belongs to and provides a Handle
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// method that receives a mutable context. Handlers are executed in
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// registration order within a phase; each handler's output becomes
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// the next handler's input.
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//
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// A handler that returns a non-nil error aborts the chain — no
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// further handlers in the same phase (or subsequent phases) will
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// run.
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type Handler interface {
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// Name returns a short, unique identifier for the handler
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// (e.g. "sticky", "alias", "date-normalise"). Used in
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// correction records and log output.
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Name() string
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// Phase returns the pipeline phase this handler belongs to.
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Phase() Phase
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// Handle processes the context and returns an error to abort
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// the chain, or nil to continue.
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Handle(ctx *Context) error
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}
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// FlagProtectionResolver exposes reviewed blocked/ambiguous flag names to
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// command traversal. A PreParse handler that owns those decisions implements
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// this optional interface so traversal and the handler chain use one semantic
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// source instead of independently guessing whether an unknown flag may carry a
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// value.
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type FlagProtectionResolver interface {
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ResolveFlagProtection(rawCommandPath, morphedFlag string) (FlagProtection, bool)
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}
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