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@ -31,10 +31,12 @@ impl RustAnalyzerProject {
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/// Write rust-project.json to disk
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pub fn write_to_disk(&self) -> Result<(), std::io::Error> {
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std::fs::write(
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"./rust-project.json",
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serde_json::to_vec(&self).expect("Failed to serialize to JSON"),
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)?;
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// Using the capacity 2^14 = 16384 since the file length in bytes is higher than 2^13.
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// The final length is not known exactly because it depends on the user's sysroot path,
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// the current number of exercises etc.
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let mut buf = Vec::with_capacity(16384);
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serde_json::to_writer(&mut buf, &self).expect("Failed to serialize to JSON");
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std::fs::write("rust-project.json", buf)?;
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Ok(())
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}
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