29545f03fc
* migrate from anyhow to thiserror (#190). pending polish error msgs * Add backtrace and compartmentalize errors - Include backtraces in the errors we generate. To get this we can't just return a literal enum, because the backtrace requires a call. - Related to the previous point: add methods to create errors so we can include the backtrace conveniently without changing too much the syntax. So instead of `Err(Error::KeyNotFound(key))` (literal enum) it will be `Err(Error::key_not_found(key))` (method call) - Each error should be local to its scope, and each scope should only return its own error. - The merkle tree should return `TreeError` and not Error - The middleware should return `MiddlewareError` and not Error - With a global Error we can't easily include backend/frontend types in the error fields, so declare a `BackendError` and a `FrontendError` and follow the pattern from the previous point - The Pod traits should be able to return backend errors and will be used in the frontend; for that we change them to use trait object Error: `dyn std::error::Error` * fix error * apply suggestions from @arnaucube * rename XError and XResult to Error and Result * reorg signature * make frontend custom error more ergonomic * remove unnecessary feature --------- Co-authored-by: Eduard S. <eduardsanou@posteo.net> |
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