mirror of
https://github.com/nushell/nushell
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Added math product support (#2249)
* added math product: working initial impl * resolving merge conflicts * impl std::ops::Mul for Filesize * rebased with main; refactored product implementation * fixed error msg, added docs for math product
This commit is contained in:
Gurpreet Singh
GitHub
parent
a64270829e
commit
303a9defd3
7 changed files with 219 additions and 41 deletions
88
Cargo.lock
generated
88
Cargo.lock
generated
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@ -277,9 +277,9 @@ checksum = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
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[[package]]
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name = "backtrace"
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@ -896,6 +896,16 @@ dependencies = [
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"crossbeam-utils 0.6.6",
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]
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[[package]]
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name = "crossbeam-channel"
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"cfg-if",
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"crossbeam-utils 0.7.2",
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]
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[[package]]
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name = "crossbeam-deque"
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version = "0.7.3"
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@ -913,7 +923,7 @@ version = "0.8.2"
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"autocfg 1.0.1",
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"cfg-if",
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"crossbeam-utils 0.7.2",
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"lazy_static 1.4.0",
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@ -949,7 +959,7 @@ version = "0.7.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"cfg-if",
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"lazy_static 1.4.0",
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]
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@ -1343,9 +1353,9 @@ checksum = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"
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[[package]]
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name = "encoding_rs"
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checksum = "e8ac63f94732332f44fe654443c46f6375d1939684c17b0afb6cb56b0456e171"
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dependencies = [
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"cfg-if",
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]
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@ -1384,9 +1394,9 @@ dependencies = [
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[[package]]
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name = "event-listener"
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version = "2.3.3"
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version = "2.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7f14646a9e0430150a87951622ba9675472b68e384b7701b8423b30560805c7a"
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checksum = "e1cd41440ae7e4734bbd42302f63eaba892afc93a3912dad84006247f0dedb0e"
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[[package]]
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name = "failure"
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@ -1807,9 +1817,9 @@ checksum = "aaf91faf136cb47367fa430cd46e37a788775e7fa104f8b4bcb3861dc389b724"
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[[package]]
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name = "git2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "83a18853c521bcf553a4e3c05ad21f3ad89c1a78a0485adc97829a4c88066a36"
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checksum = "86d97249f21e9542caeee9f8e1d150905cd875bf723f5ff771bdb4852eb83a24"
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dependencies = [
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"bitflags",
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"libc",
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@ -1863,7 +1873,7 @@ version = "0.8.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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]
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@ -2252,7 +2262,7 @@ version = "1.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "86b45e59b16c76b11bf9738fd5d38879d3bd28ad292d7b313608becb17ae2df9"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"hashbrown",
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"serde 1.0.115",
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]
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@ -2310,7 +2320,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "17b77027f12e53ae59a379f7074259d32eb10867e6183388020e922832d9c3fb"
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dependencies = [
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"bytes 0.4.12",
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"crossbeam-channel",
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"crossbeam-channel 0.3.9",
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"crossbeam-utils 0.6.6",
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"curl",
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"curl-sys",
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@ -2451,15 +2461,15 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
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[[package]]
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name = "libc"
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version = "0.2.74"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libgit2-sys"
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dependencies = [
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"cc",
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"libc",
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c198b026e1bbf08a937e94c6c60f9ec4a2267f5b0d2eec9c1b21b061ce2be55f"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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]
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name = "miniz_oxide"
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version = "0.4.0"
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dependencies = [
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"adler",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "090c7f9998ee0ff65aa5b723e4009f7b217707f1fb5ea551329cc4d6231fb304"
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"num-integer",
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"num-traits 0.2.12",
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"serde 1.0.115",
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b6b19411a9719e753aff12e5187b74d60d3dc449ec3f4dc21e3989c3f554bc95"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"num-traits 0.2.12",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8d59457e662d541ba17869cf51cf177c0b5f0cbf476c66bdc90bf1edac4f875b"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"num-traits 0.2.12",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7a6e6b7c748f995c4c29c5f5ae0248536e04a5739927c74ec0fa564805094b9f"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"num-integer",
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"num-traits 0.2.12",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c000134b5dbf44adc5cb772486d335293351644b801551abe8f75c84cfa4aef"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"num-bigint",
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"num-integer",
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"num-traits 0.2.12",
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ac267bcc07f48ee5f8935ab0d24f316fb722d7a1292e2913f0cc196b29ffd611"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a842db4709b604f0fe5d1170ae3565899be2ad3d9cbc72dedc789ac0511f78de"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"cc",
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"libc",
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"pkg-config",
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[[package]]
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name = "rayon"
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version = "1.3.1"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "62f02856753d04e03e26929f820d0a0a337ebe71f849801eea335d464b349080"
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checksum = "cfd016f0c045ad38b5251be2c9c0ab806917f82da4d36b2a327e5166adad9270"
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dependencies = [
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"autocfg 1.0.0",
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"autocfg 1.0.1",
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"crossbeam-deque",
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"either",
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"rayon-core",
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name = "rayon-core"
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version = "1.7.1"
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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 = "e92e15d89083484e11353891f1af602cc661426deb9564c298b270c726973280"
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checksum = "91739a34c4355b5434ce54c9086c5895604a9c278586d1f1aa95e04f66b525a0"
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dependencies = [
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"crossbeam-channel 0.4.3",
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"crossbeam-deque",
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"crossbeam-queue",
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"crossbeam-utils 0.7.2",
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"lazy_static 1.4.0",
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"num_cpus",
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name = "syn"
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version = "1.0.38"
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version = "1.0.39"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e69abc24912995b3038597a7a593be5053eb0fb44f3cc5beec0deb421790c1f4"
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checksum = "891d8d6567fe7c7f8835a3a98af4208f3846fba258c1bc3c31d6e506239f11f9"
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dependencies = [
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"proc-macro2",
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"quote",
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name = "trash"
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version = "1.1.0"
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version = "1.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bcd4ea126e9b491aa0ee8043f5519cd56498413997a6c3859c8a9812aa300803"
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checksum = "329be7bb48445d16bf4c241ba9514af46f2189c715bf5fd854e38f7c95f60194"
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dependencies = [
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"winapi 0.3.9",
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]
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[[package]]
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name = "vec-arena"
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version = "0.5.0"
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version = "0.5.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "17dfb54bf57c9043f4616cb03dab30eff012cc26631b797d8354b916708db919"
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checksum = "8cb18268690309760d59ee1a9b21132c126ba384f374c59a94db4bc03adeb561"
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[[package]]
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name = "vec_map"
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@ -419,6 +419,7 @@ pub fn create_default_context(
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whole_stream_command(MathStddev),
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whole_stream_command(MathSummation),
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whole_stream_command(MathVariance),
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whole_stream_command(MathProduct),
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// File format output
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whole_stream_command(To),
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whole_stream_command(ToCSV),
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@ -199,8 +199,8 @@ pub(crate) use last::Last;
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pub(crate) use lines::Lines;
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pub(crate) use ls::Ls;
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pub(crate) use math::{
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Math, MathAverage, MathEval, MathMaximum, MathMedian, MathMinimum, MathMode, MathStddev,
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MathSummation, MathVariance,
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Math, MathAverage, MathEval, MathMaximum, MathMedian, MathMinimum, MathMode, MathProduct,
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MathStddev, MathSummation, MathVariance,
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};
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pub(crate) use merge::Merge;
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pub(crate) use mkdir::Mkdir;
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@ -5,6 +5,7 @@ pub mod max;
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pub mod median;
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pub mod min;
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pub mod mode;
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pub mod product;
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pub mod stddev;
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pub mod sum;
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pub mod variance;
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@ -19,6 +20,7 @@ pub use max::SubCommand as MathMaximum;
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pub use median::SubCommand as MathMedian;
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pub use min::SubCommand as MathMinimum;
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pub use mode::SubCommand as MathMode;
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pub use product::SubCommand as MathProduct;
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pub use stddev::SubCommand as MathStddev;
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pub use sum::SubCommand as MathSummation;
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pub use variance::SubCommand as MathVariance;
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126
crates/nu-cli/src/commands/math/product.rs
Normal file
126
crates/nu-cli/src/commands/math/product.rs
Normal file
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@ -0,0 +1,126 @@
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use crate::commands::math::reducers::{reducer_for, Reduce};
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use crate::commands::math::utils::run_with_function;
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use crate::commands::WholeStreamCommand;
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use crate::prelude::*;
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use nu_errors::ShellError;
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use nu_protocol::{
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hir::{convert_number_to_u64, Number},
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Primitive, Signature, UntaggedValue, Value,
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};
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pub struct SubCommand;
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#[async_trait]
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impl WholeStreamCommand for SubCommand {
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fn name(&self) -> &str {
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"math product"
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}
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fn signature(&self) -> Signature {
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Signature::build("math product")
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}
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|
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fn usage(&self) -> &str {
|
||||
"Finds the product of a list of numbers or tables"
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}
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async fn run(
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&self,
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args: CommandArgs,
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registry: &CommandRegistry,
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) -> Result<OutputStream, ShellError> {
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run_with_function(
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RunnableContext {
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input: args.input,
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registry: registry.clone(),
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shell_manager: args.shell_manager,
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host: args.host,
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ctrl_c: args.ctrl_c,
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current_errors: args.current_errors,
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name: args.call_info.name_tag,
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raw_input: args.raw_input,
|
||||
},
|
||||
product,
|
||||
)
|
||||
.await
|
||||
}
|
||||
|
||||
fn examples(&self) -> Vec<Example> {
|
||||
vec![Example {
|
||||
description: "Get the product of a list of numbers",
|
||||
example: "echo [2 3 3 4] | math product",
|
||||
result: Some(vec![UntaggedValue::int(72).into()]),
|
||||
}]
|
||||
}
|
||||
}
|
||||
|
||||
fn to_byte(value: &Value) -> Option<Value> {
|
||||
match &value.value {
|
||||
UntaggedValue::Primitive(Primitive::Int(num)) => Some(
|
||||
UntaggedValue::Primitive(Primitive::Filesize(convert_number_to_u64(&Number::Int(
|
||||
num.clone(),
|
||||
))))
|
||||
.into_untagged_value(),
|
||||
),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
|
||||
/// Calculate product of given values
|
||||
pub fn product(values: &[Value], name: &Tag) -> Result<Value, ShellError> {
|
||||
let prod = reducer_for(Reduce::Product);
|
||||
|
||||
let first = values.get(0).ok_or_else(|| {
|
||||
ShellError::unexpected("Cannot perform aggregate math operation on empty data")
|
||||
})?;
|
||||
|
||||
match first {
|
||||
v if v.is_filesize() => to_byte(&prod(
|
||||
UntaggedValue::int(1).into_untagged_value(),
|
||||
values
|
||||
.iter()
|
||||
.map(|v| match v {
|
||||
Value {
|
||||
value: UntaggedValue::Primitive(Primitive::Filesize(num)),
|
||||
..
|
||||
} => UntaggedValue::int(*num as usize).into_untagged_value(),
|
||||
other => other.clone(),
|
||||
})
|
||||
.collect::<Vec<_>>(),
|
||||
)?)
|
||||
.ok_or_else(|| {
|
||||
ShellError::labeled_error(
|
||||
"could not convert to decimal",
|
||||
"could not convert to decimal",
|
||||
&name.span,
|
||||
)
|
||||
}),
|
||||
|
||||
v if v.is_none() => prod(
|
||||
UntaggedValue::int(1).into_untagged_value(),
|
||||
values
|
||||
.iter()
|
||||
.map(|v| match v {
|
||||
Value {
|
||||
value: UntaggedValue::Primitive(Primitive::Nothing),
|
||||
..
|
||||
} => UntaggedValue::int(1).into_untagged_value(),
|
||||
other => other.clone(),
|
||||
})
|
||||
.collect::<Vec<_>>(),
|
||||
),
|
||||
_ => prod(UntaggedValue::int(1).into_untagged_value(), values.to_vec()),
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::SubCommand;
|
||||
|
||||
#[test]
|
||||
fn examples_work_as_expected() {
|
||||
use crate::examples::test as test_examples;
|
||||
|
||||
test_examples(SubCommand {})
|
||||
}
|
||||
}
|
||||
|
|
@ -47,6 +47,7 @@ pub fn reducer_for(
|
|||
)),
|
||||
Reduce::Minimum => Box::new(|_, values| min(values)),
|
||||
Reduce::Maximum => Box::new(|_, values| max(values)),
|
||||
Reduce::Product => Box::new(|_, values| product(values)),
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -54,6 +55,7 @@ pub enum Reduce {
|
|||
Summation,
|
||||
Minimum,
|
||||
Maximum,
|
||||
Product,
|
||||
Default,
|
||||
}
|
||||
|
||||
|
|
@ -133,3 +135,34 @@ pub fn min(data: Vec<Value>) -> Result<Value, ShellError> {
|
|||
tag: Tag::unknown(),
|
||||
})
|
||||
}
|
||||
|
||||
pub fn product(data: Vec<Value>) -> Result<Value, ShellError> {
|
||||
if data.is_empty() {
|
||||
return Err(ShellError::unexpected(ERR_EMPTY_DATA));
|
||||
}
|
||||
|
||||
let mut prod = UntaggedValue::int(1).into_untagged_value();
|
||||
for value in data {
|
||||
match value.value {
|
||||
UntaggedValue::Primitive(_) => {
|
||||
prod = match compute_values(Operator::Multiply, &prod, &value) {
|
||||
Ok(v) => v.into_untagged_value(),
|
||||
Err((left_type, right_type)) => {
|
||||
return Err(ShellError::coerce_error(
|
||||
left_type.spanned_unknown(),
|
||||
right_type.spanned_unknown(),
|
||||
))
|
||||
}
|
||||
};
|
||||
}
|
||||
_ => {
|
||||
return Err(ShellError::labeled_error(
|
||||
"Attempted to compute the product of a value that cannot be multiplied.",
|
||||
"value appears here",
|
||||
value.tag.span,
|
||||
))
|
||||
}
|
||||
}
|
||||
}
|
||||
Ok(prod)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@ Currently the following functions are implemented:
|
|||
* `math max`: Finds the maximum within a list of numbers or tables
|
||||
* `math median`: Finds the median of a list of numbers or tables
|
||||
* `math sum`: Finds the sum of a list of numbers or tables
|
||||
* `math product`: Finds the product of a list of numbers or tables
|
||||
|
||||
However, the mathematical functions like `min` and `max` are more permissive and also work on `Dates`.
|
||||
|
||||
|
|
@ -90,6 +91,11 @@ To get the average of the file sizes in a directory, simply pipe the size column
|
|||
───┴──────────
|
||||
```
|
||||
|
||||
```shell
|
||||
> echo [2 3 3 4] | math product
|
||||
72
|
||||
```
|
||||
|
||||
### Dates
|
||||
|
||||
```shell
|
||||
|
|
|
|||
Loading…
Reference in a new issue