Implement serialised binary format
This commit is contained in:
parent
31cdf3d99d
commit
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GPG Key ID:
7234E476BF21C61A
129
Cargo.lock
generated
129
Cargo.lock
generated
@ -1,11 +1,24 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "adler"
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version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
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[[package]]
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name = "ahash"
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version = "0.7.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "43bb833f0bf979d8475d38fbf09ed3b8a55e1885fe93ad3f93239fc6a4f17b98"
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dependencies = [
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"getrandom",
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"once_cell",
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"version_check",
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]
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[[package]]
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name = "aho-corasick"
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version = "0.7.18"
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@ -80,6 +93,27 @@ version = "3.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c59e7af012c713f529e7a3ee57ce9b31ddd858d4b512923602f74608b009631"
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[[package]]
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name = "bytecheck"
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version = "0.6.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fb738a1e65989ecdcd5bba16079641bd7209688fa546e1064832fd6e012fd32a"
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dependencies = [
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"bytecheck_derive",
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"ptr_meta",
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]
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[[package]]
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name = "bytecheck_derive"
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version = "0.6.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c3b4dff26fdc9f847dab475c9fec16f2cba82d5aa1f09981b87c44520721e10a"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "byteorder"
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version = "1.4.3"
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@ -329,6 +363,17 @@ dependencies = [
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"version_check",
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]
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[[package]]
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name = "getrandom"
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version = "0.2.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
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dependencies = [
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"cfg-if 1.0.0",
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"libc",
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"wasi",
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]
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[[package]]
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name = "git-version"
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version = "0.3.4"
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@ -367,6 +412,15 @@ version = "0.9.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
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[[package]]
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name = "hashbrown"
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version = "0.11.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
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dependencies = [
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"ahash",
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]
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[[package]]
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name = "heck"
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version = "0.3.2"
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@ -402,7 +456,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "824845a0bf897a9042383849b02c1bc219c2383772efcd5c6f9766fa4b81aef3"
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dependencies = [
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"autocfg",
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"hashbrown",
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"hashbrown 0.9.1",
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]
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[[package]]
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@ -545,6 +599,12 @@ dependencies = [
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"autocfg",
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]
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[[package]]
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name = "once_cell"
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version = "1.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
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[[package]]
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name = "opaque-debug"
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version = "0.3.0"
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@ -572,6 +632,7 @@ dependencies = [
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"num-traits",
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"paste",
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"predicates",
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"rkyv",
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"rug",
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"sha2",
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"utf8-chars",
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@ -668,6 +729,26 @@ dependencies = [
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"unicode-xid",
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]
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[[package]]
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name = "ptr_meta"
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version = "0.1.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0738ccf7ea06b608c10564b31debd4f5bc5e197fc8bfe088f68ae5ce81e7a4f1"
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dependencies = [
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"ptr_meta_derive",
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]
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[[package]]
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name = "ptr_meta_derive"
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version = "0.1.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "16b845dbfca988fa33db069c0e230574d15a3088f147a87b64c7589eb662c9ac"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "quote"
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version = "1.0.9"
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@ -724,6 +805,40 @@ version = "0.6.25"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
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[[package]]
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name = "rend"
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version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6d0351a2e529ee30d571ef31faa5a4e0b9addaad087697b77efb20d2809e41c7"
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dependencies = [
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"bytecheck",
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]
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[[package]]
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name = "rkyv"
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version = "0.7.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6e804c561b577f5836dc8a1962b7f7a03eae36f716dcd5f779c5d52a0e9c09a7"
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dependencies = [
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"bytecheck",
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"hashbrown 0.11.2",
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"ptr_meta",
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"rend",
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"rkyv_derive",
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"seahash",
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]
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[[package]]
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name = "rkyv_derive"
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version = "0.7.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0afbc272334d4a4896e382508531f941a7d9505057d7424bcbed653682ce661e"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "rug"
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version = "1.12.0"
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@ -750,6 +865,12 @@ version = "1.0.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
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[[package]]
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name = "seahash"
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version = "4.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
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[[package]]
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name = "semver"
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version = "0.11.0"
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@ -876,6 +997,12 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "wasi"
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version = "0.10.2+wasi-snapshot-preview1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
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[[package]]
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name = "wasm-bindgen"
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version = "0.2.74"
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15
Cargo.toml
15
Cargo.toml
@ -32,20 +32,21 @@ paste = "1.0.5"
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assert_cmd = "1.0.5"
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csv = "1.1.6"
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flate2 = "1.0"
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rkyv = "0.7.15"
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utf8-chars = "1.0.2"
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xmltree = "0.10.3"
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[target.'cfg(not(target_arch = "wasm32"))'.dependencies.clap]
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#version = "3.0.0-beta.4" # proc-macro2 version conflict with rkyv
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git = "https://github.com/clap-rs/clap"
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branch = "master"
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default-features = false
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features = ["std", "derive"]
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[target.'cfg(not(target_arch = "wasm32"))'.dependencies.rug]
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version = "1.12"
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default-features = false
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features = ["integer", "rational", "float"]
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[target.'cfg(not(target_arch = "wasm32"))'.dependencies.clap]
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#version = "3.0.0-beta.2" # Bug 2279
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git = "https://github.com/clap-rs/clap"
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branch = "master"
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default-features = false
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features = ["std", "derive"]
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[profile.test]
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opt-level = 3
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@ -37,11 +37,11 @@ pub struct SubcmdOptions {
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outfile: String,
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/// Format of input file
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#[clap(help_heading=Some("INPUT/OUTPUT"), short, long, possible_values=&["blt", "csp"], value_name="format")]
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#[clap(help_heading=Some("INPUT/OUTPUT"), short, long, possible_values=&["bin", "blt", "csp"], value_name="format")]
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r#in: Option<String>,
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/// Format of output file
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#[clap(help_heading=Some("INPUT/OUTPUT"), short, long, possible_values=&["blt", "csp"], value_name="format")]
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#[clap(help_heading=Some("INPUT/OUTPUT"), short, long, possible_values=&["bin", "blt", "csp"], value_name="format")]
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out: Option<String>,
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/// Number of seats
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@ -53,7 +53,9 @@ pub struct SubcmdOptions {
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pub fn main(mut cmd_opts: SubcmdOptions) -> Result<(), i32> {
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// Auto-detect input/output formats
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if cmd_opts.r#in == None {
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if cmd_opts.infile.ends_with(".blt") {
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if cmd_opts.infile.ends_with(".bin") {
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cmd_opts.r#in = Some("bin".to_string());
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} else if cmd_opts.infile.ends_with(".blt") {
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cmd_opts.r#in = Some("blt".to_string());
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} else if cmd_opts.infile.ends_with(".csp") {
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cmd_opts.r#in = Some("csp".to_string());
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@ -63,7 +65,9 @@ pub fn main(mut cmd_opts: SubcmdOptions) -> Result<(), i32> {
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}
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}
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if cmd_opts.out == None {
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if cmd_opts.outfile.ends_with(".blt") {
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if cmd_opts.outfile.ends_with(".bin") {
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cmd_opts.out = Some("bin".to_string());
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} else if cmd_opts.outfile.ends_with(".blt") {
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cmd_opts.out = Some("blt".to_string());
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} else if cmd_opts.outfile.ends_with(".csp") {
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cmd_opts.out = Some("csp".to_string());
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@ -77,6 +81,9 @@ pub fn main(mut cmd_opts: SubcmdOptions) -> Result<(), i32> {
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let mut election: Election<Rational>;
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match cmd_opts.r#in.as_deref().unwrap() {
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"bin" => {
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election = parser::bin::parse_path(cmd_opts.infile);
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}
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"blt" => {
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match parser::blt::parse_path(cmd_opts.infile) {
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Ok(e) => {
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@ -111,6 +118,9 @@ pub fn main(mut cmd_opts: SubcmdOptions) -> Result<(), i32> {
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let output = File::create(cmd_opts.outfile).expect("IO Error");
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match cmd_opts.out.as_deref().unwrap() {
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"bin" => {
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writer::bin::write(election, output);
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}
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"blt" => {
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writer::blt::write(election, output);
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}
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@ -18,7 +18,7 @@
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use crate::constraints::Constraints;
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use crate::election::{CandidateState, CountState, Election};
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use crate::numbers::{Fixed, GuardedFixed, NativeFloat64, Number, Rational};
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use crate::parser::blt;
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use crate::parser::{bin, blt};
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use crate::stv::{self, STVOptions};
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use crate::ties;
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@ -37,8 +37,13 @@ pub struct SubcmdOptions {
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// -- File input --
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/// Path to the BLT file to be counted
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#[clap(help_heading=Some("INPUT"))]
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filename: String,
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/// Input is in serialised binary format from "opentally convert"
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#[clap(help_heading=Some("INPUT"), long)]
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bin: bool,
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// ----------------------
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// -- Numbers settings --
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@ -189,25 +194,25 @@ pub struct SubcmdOptions {
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pub fn main(cmd_opts: SubcmdOptions) -> Result<(), i32> {
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// Read and count election according to --numbers
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if cmd_opts.numbers == "rational" {
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let mut election = election_from_file(&cmd_opts.filename)?;
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let mut election = election_from_file(&cmd_opts.filename, cmd_opts.bin)?;
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maybe_load_constraints(&mut election, &cmd_opts.constraints);
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// Must specify ::<N> here and in a few other places because ndarray causes E0275 otherwise
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count_election::<Rational>(election, cmd_opts)?;
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} else if cmd_opts.numbers == "float64" {
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let mut election = election_from_file(&cmd_opts.filename)?;
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let mut election = election_from_file(&cmd_opts.filename, cmd_opts.bin)?;
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maybe_load_constraints(&mut election, &cmd_opts.constraints);
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count_election::<NativeFloat64>(election, cmd_opts)?;
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} else if cmd_opts.numbers == "fixed" {
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Fixed::set_dps(cmd_opts.decimals);
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let mut election = election_from_file(&cmd_opts.filename)?;
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let mut election = election_from_file(&cmd_opts.filename, cmd_opts.bin)?;
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maybe_load_constraints(&mut election, &cmd_opts.constraints);
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count_election::<Fixed>(election, cmd_opts)?;
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} else if cmd_opts.numbers == "gfixed" {
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GuardedFixed::set_dps(cmd_opts.decimals);
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let mut election = election_from_file(&cmd_opts.filename)?;
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let mut election = election_from_file(&cmd_opts.filename, cmd_opts.bin)?;
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maybe_load_constraints(&mut election, &cmd_opts.constraints);
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count_election::<GuardedFixed>(election, cmd_opts)?;
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}
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@ -215,7 +220,12 @@ pub fn main(cmd_opts: SubcmdOptions) -> Result<(), i32> {
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return Ok(());
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}
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fn election_from_file<N: Number>(path: &str) -> Result<Election<N>, i32> {
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fn election_from_file<N: Number>(path: &str, bin: bool) -> Result<Election<N>, i32> {
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if bin {
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// BIN format
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return Ok(bin::parse_path(path));
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} else {
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// BLT format
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match blt::parse_path(path) {
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Ok(e) => return Ok(e),
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Err(err) => {
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@ -223,6 +233,7 @@ fn election_from_file<N: Number>(path: &str) -> Result<Election<N>, i32> {
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return Err(1);
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}
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}
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}
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}
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fn maybe_load_constraints<N: Number>(election: &mut Election<N>, constraints: &Option<String>) {
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@ -22,12 +22,16 @@ use crate::stv::{ConstraintMode, STVOptions};
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use itertools::Itertools;
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use ndarray::{Array, Dimension, IxDyn};
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#[cfg(not(target_arch = "wasm32"))]
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use rkyv::{Archive, Deserialize, Serialize};
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use std::collections::HashMap;
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use std::fmt;
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use std::ops;
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/// Constraints for an [crate::election::Election]
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#[derive(Debug)]
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#[cfg_attr(not(target_arch = "wasm32"), derive(Archive, Deserialize, Serialize))]
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pub struct Constraints(pub Vec<Constraint>);
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impl Constraints {
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@ -121,6 +125,7 @@ impl Constraints {
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/// A single dimension of constraint
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#[derive(Debug)]
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#[cfg_attr(not(target_arch = "wasm32"), derive(Archive, Deserialize, Serialize))]
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pub struct Constraint {
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/// Name of this constraint
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pub name: String,
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@ -130,6 +135,7 @@ pub struct Constraint {
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/// A group of candidates, of which a certain minimum and maximum must be elected
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#[derive(Debug)]
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#[cfg_attr(not(target_arch = "wasm32"), derive(Archive, Deserialize, Serialize))]
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pub struct ConstrainedGroup {
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/// Name of this group
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pub name: String,
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@ -21,10 +21,14 @@ use crate::numbers::Number;
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use crate::sharandom::SHARandom;
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use crate::stv::{QuotaMode, STVOptions};
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#[cfg(not(target_arch = "wasm32"))]
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use rkyv::{Archive, Archived, Deserialize, Fallible, Resolver, Serialize, with::{ArchiveWith, DeserializeWith, SerializeWith}};
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use std::cmp::max;
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use std::collections::HashMap;
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||||
|
||||
/// An election to be counted
|
||||
#[cfg_attr(not(target_arch = "wasm32"), derive(Archive, Deserialize, Serialize))]
|
||||
pub struct Election<N> {
|
||||
/// Name of the election
|
||||
pub name: String,
|
||||
@ -62,6 +66,7 @@ impl<N: Number> Election<N> {
|
||||
|
||||
/// A candidate in an [Election]
|
||||
#[derive(PartialEq, Eq, Hash)]
|
||||
#[cfg_attr(not(target_arch = "wasm32"), derive(Archive, Deserialize, Serialize))]
|
||||
pub struct Candidate {
|
||||
/// Name of the candidate
|
||||
pub name: String,
|
||||
@ -363,13 +368,43 @@ pub struct Vote<'a, N> {
|
||||
}
|
||||
|
||||
/// A record of a voter's preferences
|
||||
#[cfg_attr(not(target_arch = "wasm32"), derive(Archive, Deserialize, Serialize))]
|
||||
pub struct Ballot<N> {
|
||||
/// Original value/weight of the ballot
|
||||
#[cfg_attr(not(target_arch = "wasm32"), with(SerializedNum))]
|
||||
pub orig_value: N,
|
||||
/// Indexes of candidates preferenced on the ballot
|
||||
pub preferences: Vec<usize>,
|
||||
}
|
||||
|
||||
/// rkyv-serialized representation of [Number]
|
||||
#[cfg(not(target_arch = "wasm32"))]
|
||||
pub struct SerializedNum;
|
||||
|
||||
#[cfg(not(target_arch = "wasm32"))]
|
||||
impl<N: Number> ArchiveWith<N> for SerializedNum {
|
||||
type Archived = Archived<String>;
|
||||
type Resolver = Resolver<String>;
|
||||
|
||||
unsafe fn resolve_with(field: &N, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) {
|
||||
field.to_string().resolve(pos, resolver, out);
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(not(target_arch = "wasm32"))]
|
||||
impl<N: Number, S: Fallible + ?Sized> SerializeWith<N, S> for SerializedNum where String: Serialize<S> {
|
||||
fn serialize_with(field: &N, serializer: &mut S) -> Result<Self::Resolver, S::Error> {
|
||||
return field.to_string().serialize(serializer);
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(not(target_arch = "wasm32"))]
|
||||
impl<N: Number, D: Fallible + ?Sized> DeserializeWith<Archived<String>, N, D> for SerializedNum where Archived<String>: Deserialize<String, D> {
|
||||
fn deserialize_with(field: &Archived<String>, deserializer: &mut D) -> Result<N, D::Error> {
|
||||
return Ok(N::parse(&field.deserialize(deserializer)?));
|
||||
}
|
||||
}
|
||||
|
||||
/// State of a [Candidate] during a count
|
||||
#[allow(dead_code)]
|
||||
#[derive(PartialEq)]
|
||||
|
||||
33
src/parser/bin.rs
Normal file
33
src/parser/bin.rs
Normal file
@ -0,0 +1,33 @@
|
||||
/* OpenTally: Open-source election vote counting
|
||||
* Copyright © 2021 Lee Yingtong Li (RunasSudo)
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
use crate::election::Election;
|
||||
use crate::numbers::Number;
|
||||
|
||||
use rkyv::{Deserialize, Infallible, archived_root};
|
||||
|
||||
use std::fs;
|
||||
use std::path::Path;
|
||||
|
||||
/// Parse the given BIN file
|
||||
pub fn parse_path<P: AsRef<Path>, N: Number>(path: P) -> Election<N> {
|
||||
let content = fs::read(path).expect("IO Error");
|
||||
let archived = unsafe {
|
||||
archived_root::<Election<N>>(&content)
|
||||
};
|
||||
return archived.deserialize(&mut Infallible).unwrap();
|
||||
}
|
||||
@ -15,6 +15,10 @@
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/// BIN file parser
|
||||
#[cfg(not(target_arch = "wasm32"))]
|
||||
pub mod bin;
|
||||
|
||||
/// BLT file parser
|
||||
pub mod blt;
|
||||
/// CSP file parser
|
||||
|
||||
35
src/writer/bin.rs
Normal file
35
src/writer/bin.rs
Normal file
@ -0,0 +1,35 @@
|
||||
/* OpenTally: Open-source election vote counting
|
||||
* Copyright © 2021 Lee Yingtong Li (RunasSudo)
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
use crate::election::Election;
|
||||
use crate::numbers::Number;
|
||||
|
||||
use rkyv::ser::{Serializer, serializers::AllocSerializer};
|
||||
|
||||
use std::io::{BufWriter, Write};
|
||||
|
||||
/// Write the [Election] into BIN format
|
||||
pub fn write<W: Write, N: Number>(election: Election<N>, output: W) {
|
||||
// Serialize data using rkyv
|
||||
let mut serializer = AllocSerializer::<256>::default();
|
||||
serializer.serialize_value(&election).unwrap();
|
||||
let buffer = serializer.into_serializer().into_inner();
|
||||
|
||||
// Write output
|
||||
let mut output = BufWriter::new(output);
|
||||
output.write(&buffer).expect("IO Error");
|
||||
}
|
||||
@ -15,6 +15,10 @@
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/// BIN file writer
|
||||
#[cfg(not(target_arch = "wasm32"))]
|
||||
pub mod bin;
|
||||
|
||||
/// BLT file writer
|
||||
pub mod blt;
|
||||
/// CSP file writer
|
||||
|
||||
Loading…
Reference in New Issue
Block a user