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20 lines
958 B
Rust
20 lines
958 B
Rust
use crate::runner::env::ShadowTablesMut;
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pub mod plan;
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pub mod property;
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pub mod query;
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/// Shadow trait for types that can be "shadowed" in the simulator environment.
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/// Shadowing is a process of applying a transformation to the simulator environment
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/// that reflects the changes made by the query or operation represented by the type.
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/// The result of the shadowing is typically a vector of rows, which can be used to
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/// update the simulator environment or to verify the correctness of the operation.
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/// The `Result` type is used to indicate the type of the result of the shadowing
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/// operation, which can vary depending on the type of the operation being shadowed.
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/// For example, a `Create` operation might return an empty vector, while an `Insert` operation
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/// might return a vector of rows that were inserted into the table.
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pub(crate) trait Shadow {
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type Result;
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fn shadow(&self, tables: &mut ShadowTablesMut<'_>) -> Self::Result;
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}
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