Stop depending on serde_json

Author: coolreader18

Cargo.lock

@@ -21,5 +21,4 @@ maplit = "1.0.2"
 once_cell = "1.10.0"
 textwrap = { version = "0.15.0", default-features = false }
 indexmap = "1.8.1"
-serde_json = "1.0.79"
 itertools = "0.10.3"

derive/Cargo.toml

@@ -1,14 +1,17 @@
+use once_cell::sync::Lazy;
+use std::collections::HashMap;
 pub(crate) type Result = std::result::Result<Option<&'static str>, ()>;
 
 pub(crate) fn try_read(path: &str) -> Result {
-    static DATABASE: once_cell::sync::OnceCell<std::collections::HashMap<String, Option<String>>> =
-        once_cell::sync::OnceCell::new();
-    let db = DATABASE.get_or_init(|| {
-        let raw = include_str!("../docs.json");
-        serde_json::from_str(raw).expect("docs.json must be a valid json file")
+    static DATABASE: Lazy<HashMap<&str, Option<&str>>> = Lazy::new(|| {
+        let data = include!("../docs.rsinc");
+        let mut map = HashMap::with_capacity(data.len());
+        for (item, doc) in data {
+            map.insert(item, doc);
+        }
+        map
     });
-    let data = db.get(path).ok_or(())?;
-    Ok(data.as_ref().map(|s| s.as_str()))
+    DATABASE.get(path).copied().ok_or(())
 }
 
 pub(crate) fn try_module_item(module: &str, item: &str) -> Result {

derive/docs.json

@@ -108,19 +108,26 @@ def traverse_all():
 
 
 def docs():
-    docs = {".".join(names): doc for names, doc in traverse_all()}
-    return docs
+    return ((".".join(names), doc) for names, doc in traverse_all())
 
 
 if __name__ == "__main__":
-    import json
     import sys
+    import json
 
     try:
         out_path = sys.argv[1]
     except IndexError:
         out_path = "-"
 
-    dump = json.dumps(docs(), indent=4, sort_keys=True)
+    def dump(docs):
+        yield "[\n"
+        for name, doc in docs:
+            if doc is None:
+                yield f"    ({json.dumps(name)}, None),\n"
+            else:
+                yield f"    ({json.dumps(name)}, Some({json.dumps(doc)})),\n"
+        yield "]\n"
+
     out_file = open(out_path, "w") if out_path != "-" else sys.stdout
-    out_file.write(dump)
+    out_file.writelines(dump(docs()))