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# Loctree Rust idiom catalog (default).
# Override via <workspace>/.loctree/idioms/rust.toml.
# Source of truth: docs/semantic-spec.md "Rust idiom catalog" (Cut 3B T2).
# 23 entries — keep in sync with the spec doc.

# ---- Lifecycle / entrypoint idioms -----------------------------------------

[[idiom]]
name = "main"
classifier = "PrimaryEntrypoint"
runtime_role = "PrimaryEntrypoint"
language = "rust"
reasoning = "Binary crate entrypoint; reachable via cargo run / compiled binary execution, not via static call."

[[idiom]]
name = "new"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Idiomatic Rust constructor convention; called via Type::new(...) across the ecosystem."

[[idiom]]
name = "default"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Default trait method; reached via Default::default() and #[derive(Default)] expansion."

[[idiom]]
name = "build"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Builder pattern terminal method; conventionally consumes Self into the built type."

# ---- Conversion trait methods ----------------------------------------------

[[idiom]]
name = "from"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "From trait method; reached via T::from(x) and the .into() blanket impl."

[[idiom]]
name = "try_from"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "TryFrom trait method; reached via T::try_from(x) and the .try_into() blanket impl."

[[idiom]]
name = "into"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Into trait method; reached via .into() conversions and the From blanket impl."

[[idiom]]
name = "to_string"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Display blanket impl method; reached via .to_string() and format!() macro."

[[idiom]]
name = "as_ref"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "AsRef trait method; reached via std::convert::AsRef bounds throughout std and ecosystem."

[[idiom]]
name = "as_mut"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "AsMut trait method; reached via std::convert::AsMut bounds."

# ---- Standard trait method names (Display/Debug/Drop/Clone/etc.) -----------

[[idiom]]
name = "fmt"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Display/Debug trait method; reached via format!/println!/eprintln!/write! macros and Debug derive."

[[idiom]]
name = "drop"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Drop trait method; reached implicitly when a value goes out of scope; cannot be called directly."

[[idiom]]
name = "clone"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Clone trait method; reached via .clone() calls and #[derive(Clone)] expansion."

[[idiom]]
name = "next"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Iterator trait method; reached implicitly through for-loops and iterator adapters."

[[idiom]]
name = "into_iter"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "IntoIterator trait method; reached implicitly through for-loops over collections."

[[idiom]]
name = "size_hint"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Iterator trait method called by collect() to pre-allocate capacity."

[[idiom]]
name = "deref"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Deref trait method; reached via auto-deref coercions inserted by the compiler."

[[idiom]]
name = "deref_mut"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "DerefMut trait method; reached via auto-deref-mut coercions inserted by the compiler."

# ---- Equality / ordering / hashing -----------------------------------------

[[idiom]]
name = "eq"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "PartialEq trait method; reached via == operator and assert_eq! macro."

[[idiom]]
name = "cmp"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Ord trait method; reached via .sort() and BTreeMap/BTreeSet operations."

[[idiom]]
name = "partial_cmp"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "PartialOrd trait method; reached via comparison operators (<, >, <=, >=)."

[[idiom]]
name = "hash"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Hash trait method; reached implicitly via HashMap / HashSet operations and #[derive(Hash)]."

# ---- Serde / serialization conventions -------------------------------------

[[idiom]]
name = "serialize"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Serde Serialize trait method; reached via serde_json::to_string and #[derive(Serialize)] expansion."

[[idiom]]
name = "deserialize"
classifier = "LibraryHelper"
runtime_role = "LibraryHelper"
language = "rust"
reasoning = "Serde Deserialize trait method; reached via serde_json::from_str and #[derive(Deserialize)] expansion."