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Proof of concept of "side channel" for diagnostics #639
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Replaces ReaderC with StateC in Unmarshall, and checks for diagnostics at each visited node, kept in the state. The diagnostic determination is dodgy, but the concept works See https://gist.github.com/alanz/2ae23a75bba75ed09780d3fa043bd28e Note: haskell-tree-sitter is a git dep, it needs a "git submodule update" in the appropriate "dist-newstyle/src" directory.
Use a modified tree-sitter to retrieve diagnostics for a Node as a string, parse it into a TSDiagnostic type and byte-offset, and return them in the side channel.
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Replaces
ReaderCwithStateCinUnmarshal, and checks for diagnosticsat each visited node, kept in the state.
The diagnostic determination is dodgy, but the concept works
See https://gist.github.com/alanz/2ae23a75bba75ed09780d3fa043bd28e
Note: haskell-tree-sitter is a git dep, it needs a
"git submodule update" in the appropriate "dist-newstyle/src" directory.
Related issues: #574 #638 .
Alternative approaches are to extend the query capabilities, as requested in tree-sitter/tree-sitter#606
The
ts_node_has_errorandts_node_is_missing_pcalls are not the right ones, the detailed info comes from the logic inhttps://github.com/tree-sitter/tree-sitter/blob/2b0de9dfec62af7e74c319abe80912b02dca74be/lib/src/subtree.c#L846-L894
and
https://github.com/tree-sitter/tree-sitter/blob/2b0de9dfec62af7e74c319abe80912b02dca74be/lib/src/language.c#L67-L80