27 lines
923 B
Rust
27 lines
923 B
Rust
//! runtime story 领域错误。
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//!
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//! 错误只表达运行时剧情规则失败，不能直接绑定 HTTP 或数据库错误模型。
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use std::{error::Error, fmt};
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#[derive(Clone, Debug, PartialEq, Eq)]
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pub enum RuntimeStoryRuleError {
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MissingRuntimeSessionId,
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MissingStoryAction,
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UnsupportedStoryAction,
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InvalidRuntimeSnapshot,
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}
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impl fmt::Display for RuntimeStoryRuleError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Self::MissingRuntimeSessionId => f.write_str("runtime_story.session_id 不能为空"),
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Self::MissingStoryAction => f.write_str("runtime_story.action 不能为空"),
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Self::UnsupportedStoryAction => f.write_str("runtime_story.action 当前不受支持"),
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Self::InvalidRuntimeSnapshot => f.write_str("runtime_story.snapshot 非法"),
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}
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}
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}
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impl Error for RuntimeStoryRuleError {}
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