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Nanaloveyuki
76 lines
1.9 KiB
Markdown
76 lines
1.9 KiB
Markdown
---
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name: stringify-file-sink-state
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group: api
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category: runtime
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update-time: 20260512
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description: Serialize FileSinkState into compact or pretty JSON text for diagnostics and support output.
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key-word:
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- file
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- state
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- stringify
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- public
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---
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## Stringify-file-sink-state
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Serialize `FileSinkState` into JSON text. This helper is the most direct export path for file sink diagnostics snapshots.
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### Interface
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```moonbit
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pub fn stringify_file_sink_state(state : FileSinkState, pretty~ : Bool = false) -> String {}
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```
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#### input
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- `state : FileSinkState` - File sink state snapshot to serialize.
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- `pretty : Bool` - Whether JSON should be pretty-printed.
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#### output
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- `String` - Serialized JSON text for the file sink state.
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### Explanation
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Detailed rules explaining key parameters and behaviors
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- `pretty=false` returns compact JSON.
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- `pretty=true` returns indented JSON for human diagnostics.
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- This helper builds on top of `file_sink_state_to_json(...)`.
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- The output is well-suited for support dumps, incident reports, and log snapshots.
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### How to Use
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Here are some specific examples provided.
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#### When Need Human-readable File Diagnostics
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When file sink status should be printed for operators:
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```moonbit
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println(stringify_file_sink_state(sink.state(), pretty=true))
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```
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In this example, the full file-state snapshot is rendered in readable JSON.
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#### When Need Compact State Export
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When a snapshot should stay small:
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```moonbit
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let text = stringify_file_sink_state(sink.state())
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```
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In this example, compact JSON is returned without extra formatting logic.
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### Error Case
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e.g.:
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- If the file is unavailable, the output still serializes normally with `available=false`.
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- If callers need structured composition instead of text, `file_sink_state_to_json(...)` is the better API.
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### Notes
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1. Use this helper for direct textual file-state snapshots.
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2. `pretty=true` is useful for operator-facing diagnostics and support output.
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