3070439c00
The encoding is very simple right now, just the crate name. Ultimately this won't be enough for our versioning needs, but it should fill our immediate need of being able to correlate encoded crate numbers to actual crates.
73 lines
1.5 KiB
Rust
73 lines
1.5 KiB
Rust
// EBML tag definitions and utils shared by the encoder and decoder
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import std::str;
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const uint tag_paths = 0x01u;
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const uint tag_items = 0x02u;
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const uint tag_paths_data = 0x03u;
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const uint tag_paths_data_name = 0x04u;
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const uint tag_paths_data_item = 0x05u;
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const uint tag_paths_data_mod = 0x06u;
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const uint tag_def_id = 0x07u;
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const uint tag_items_data = 0x08u;
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const uint tag_items_data_item = 0x09u;
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const uint tag_items_data_item_kind = 0x0au;
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const uint tag_items_data_item_ty_param_count = 0x0bu;
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const uint tag_items_data_item_type = 0x0cu;
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const uint tag_items_data_item_symbol = 0x0du;
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const uint tag_items_data_item_variant = 0x0eu;
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const uint tag_items_data_item_tag_id = 0x0fu;
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const uint tag_index = 0x11u;
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const uint tag_index_buckets = 0x12u;
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const uint tag_index_buckets_bucket = 0x13u;
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const uint tag_index_buckets_bucket_elt = 0x14u;
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const uint tag_index_table = 0x15u;
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const uint tag_meta_item_name_value = 0x18u;
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const uint tag_meta_item_name = 0x19u;
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const uint tag_meta_item_value = 0x20u;
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const uint tag_attributes = 0x21u;
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const uint tag_attribute = 0x22u;
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const uint tag_meta_item_word = 0x23u;
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const uint tag_meta_item_list = 0x24u;
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// The list of crates that this crate depends on
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const uint tag_crate_deps = 0x25u;
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// A single crate dependency
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const uint tag_crate_dep = 0x26u;
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// djb's cdb hashes.
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fn hash_node_id(&int node_id) -> uint { ret 177573u ^ (node_id as uint); }
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fn hash_path(&str s) -> uint {
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auto h = 5381u;
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for (u8 ch in str::bytes(s)) { h = (h << 5u) + h ^ (ch as uint); }
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ret h;
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}
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