{"record":{"id":"2e32a42ceda3c26e","repo":"Hmbown/CodeWhale","slug":"failed-to-parse-serialized-config-for-comment-merg","errorCode":null,"errorMessage":"failed to parse serialized config for comment merge; file contents were omitted","messagePattern":"failed to parse serialized config for comment merge; file contents were omitted","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/config/src/lib.rs","lineNumber":5606,"sourceCode":"\n/// Merge comments and formatting from an original TOML file into a\n/// freshly serialized document so user annotations (comments, whitespace,\n/// disabled keys) survive config rewrites.\n///\n/// `original_raw` is the raw text of the file before the change; the\n/// function parses it internally with [`toml_edit`] so callers stay free\n/// of that dependency.\npub fn merge_and_preserve_comments(serialized: &str, original_raw: &str) -> Result<String> {\n    let original = original_raw\n        .parse::<toml_edit::DocumentMut>()\n        .map_err(|_| {\n            anyhow::anyhow!(\n                \"failed to parse original config for comment merge; file contents were omitted\"\n            )\n        })?;\n\n    let mut new_doc = serialized.parse::<toml_edit::DocumentMut>().map_err(|_| {\n        anyhow::anyhow!(\n            \"failed to parse serialized config for comment merge; file contents were omitted\"\n        )\n    })?;\n\n    // Reuse the original document’s trailing text (file-footer comments /\n    // disabled keys) so they survive the rewrite.\n    new_doc.set_trailing(original.trailing().clone());\n\n    // Copy the top-level table's decor (document-header comments, whitespace\n    // before the first key) which `toml_edit` stores on the root `Table` itself.\n    *new_doc.as_table_mut().decor_mut() = original.as_table().decor().clone();\n\n    merge_decor_table(new_doc.as_table_mut(), original.as_table());\n\n    Ok(new_doc.to_string())\n}\n\n/// Recursively copy `decor` (prefix/suffix comments and whitespace) from","sourceCodeStart":5588,"sourceCodeEnd":5624,"githubUrl":"https://github.com/Hmbown/CodeWhale/blob/73e0f67d83c59909b571efdfc88c4bc28c309cb1/crates/config/src/lib.rs#L5588-L5624","documentation":"In merge_and_preserve_comments, after the original parses, the newly serialized config string itself is parsed with toml_edit::DocumentMut. If the serialized text is invalid TOML, this error is thrown. This usually indicates an internal bug (the serializer produced bad TOML) rather than user input.","triggerScenarios":"Calling merge_and_preserve_comments with a `serialized` argument that is not valid TOML — typically a bug in the code path that generated the serialized config.","commonSituations":"A library version bug producing malformed TOML (unescaped strings, invalid characters in values); passing hand-built or truncated serialized text into the API.","solutions":["Upgrade the library / check for fixed serializer bugs if the serialized text was produced internally","Validate the serialized string with a TOML parser before calling merge_and_preserve_comments","Fix string escaping/quoting in custom code that builds the serialized config","Report a bug with the serialized output if the serializer itself is at fault"],"exampleFix":"// before\nlet out = merge_and_preserve_comments(&format!(\"model = {}\", name), &original)?;\n// after\nlet out = merge_and_preserve_comments(&format!(\"model = {:?}\", name), &original)?;","handlingStrategy":"try-catch","validationCode":"toml::from_str::<toml::Value>(serialized).map_err(|e| format!(\"serialized config invalid: {e}\"))?;","typeGuard":null,"tryCatchPattern":"match merge_and_preserve_comments(&serialized, &original) {\n    Ok(out) => write(out),\n    Err(e) => { log::error!(\"serializer bug: {e}\"); report_bug(); }\n}","preventionTips":["Validate serialized output with a TOML parser before merging","Use proper quoting/escaping when building TOML strings by hand","Upgrade the library if the serializer is known-buggy"],"tags":["toml","config","serialization","parse-error"],"backgroundTag":"schema-validation-failed","analyzedSha":"73e0f67d83c59909b571efdfc88c4bc28c309cb1","analyzedAt":"2026-09-22T01:30:00.501Z","contentChangedAt":"2026-09-22T01:30:00.501Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}