feat: add thiserror annotations to error

minisql/Cargo.toml

@@ -7,3 +7,4 @@ edition = "2021"
 
 [dependencies]
 bimap = "0.6.3"
+thiserror = "1.0.50"

minisql/src/error.rs

@@ -1,17 +1,27 @@
+use thiserror::Error;
 use crate::internals::row::ColumnPosition;
 use crate::schema::{ColumnName, TableName};
 use crate::operation::InsertionValues;
 use crate::type_system::{DbType, Uuid, Value};
 
-#[derive(Debug)]
+#[derive(Debug, Error)]
 pub enum Error {
+    #[error("table {0} does not exist")]
     TableDoesNotExist(TableName),
+    #[error("column {1} of table {0} does not exist")]
     ColumnDoesNotExist(TableName, ColumnName),
+    #[error("column position {1} of table {0} does not exist")]
     ColumnPositionDoesNotExist(TableName, ColumnPosition),
+    #[error("column {1} of table {0} has unexpected type {2:?} and value {3:?}")]
     ValueDoesNotMatchExpectedType(TableName, ColumnName, DbType, Value),
+    #[error("table {0} already contains row with id {1}")]
     AttemptingToInsertAlreadyPresentId(TableName, Uuid),
+    #[error("table {0} is missing annotation for column {1}")]
     MissingTypeAnnotationOfColumn(TableName, ColumnPosition),
+    #[error("table {0} is missing column {1} in insert values {2:?}")]
     MissingColumnInInsertValues(TableName, ColumnName, InsertionValues),
+    #[error("table {0} has mismatch between insert values {1:?} and columns")]
     MismatchBetweenInsertValuesAndColumns(TableName, InsertionValues),
+    #[error("table {0} cannot be indexed on column {1}")]
     AttemptToIndexNonIndexableColumn(TableName, ColumnName),
 }