Migrate out from proc macro error #920
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Implement `Result<T, E>` based proc macro error handling instead of out of fashion `proc_macro_error` that still is in _syn_ `1.0`. This allows us to remove the need for `proc_macro_error` crate and makes our dependency tree leaner. The error handling is implemented with custom `ToTokensDiagnostics` trait that is used instead of the `ToTokens` when there is a possibility for error. Error is passed up in the call stack via `Diagnostics` struct that converts to compile error token stream at root of the macro call. The result based approach is the recommended way of handling compile errors in proc macros. Resolves #854
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Fix compile error propagation via comprehensive use of `ToTokensDiagnostics` trait. `ToTokensDiagnostics` was introduced in PR #920 to allow error propagation up in the call stack for error reporting. However this initial implementation was too limited which resulted invalid compile errors in case of error. This implementation aims to fix the shortcomings of the initial implementation.
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Fix compile error propagation via comprehensive use of `ToTokensDiagnostics` trait. `ToTokensDiagnostics` was introduced in PR #920 to allow error propagation up in the call stack for error reporting. However this initial implementation was too limited which resulted invalid compile errors in case of error. This implementation aims to fix the shortcomings of the initial implementation.
juhaku
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Fix compile error propagation via comprehensive use of `ToTokensDiagnostics` trait. `ToTokensDiagnostics` was introduced in PR #920 to allow error propagation up in the call stack for error reporting. However this initial implementation was too limited which resulted invalid compile errors in case of error. This implementation aims to fix the shortcomings of the initial implementation.
juhaku
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May 16, 2024
Fix compile error propagation via comprehensive use of `ToTokensDiagnostics` trait. `ToTokensDiagnostics` was introduced in PR #920 to allow error propagation up in the call stack for error reporting. However this initial implementation was too limited which resulted invalid compile errors in case of error. This implementation aims to fix the shortcomings of the initial implementation.
juhaku
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May 16, 2024
Fix compile error propagation via comprehensive use of `ToTokensDiagnostics` trait. `ToTokensDiagnostics` was introduced in PR #920 to allow error propagation up in the call stack for error reporting. However this initial implementation was too limited which resulted invalid compile errors in case of error. This implementation aims to fix the shortcomings of the initial implementation. Fixes #927
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Implement
Result<T, E>based proc macro error handling instead of outof fashion
proc_macro_errorthat still is in syn1.0. This allowsus to remove the need for
proc_macro_errorcrate and makes ourdependency tree leaner.
The error handling is implemented with custom
ToTokensDiagnosticstraitthat is used instead of the
ToTokenswhen there is a possibility forerror. Error is passed up in the call stack via
Diagnosticsstructthat converts to compile error token stream at root of the macro call.
The result based approach is the recommended way of handling compile
errors in proc macros.
Resolves #854