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Merge pull request #103 from wycats/function

Browse Source 
Some function stuff
This commit is contained in:
Yehuda Katz 2019-06-10 13:13:06 -07:00 committed by GitHub
commit deadb97c5d
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13 changed files with 14927 additions and 3467 deletions
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@ -84,7 +84,7 @@ name = "atty"
version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"termion 1.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -102,7 +102,7 @@ dependencies = [
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"rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -112,7 +112,7 @@ version = "0.1.28"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -240,7 +240,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -304,7 +304,7 @@ dependencies = [
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@ -357,7 +357,7 @@ version = "0.6.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
[[package]]
@ -498,7 +498,7 @@ name = "ctrlc"
version = "3.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -508,7 +508,7 @@ version = "0.4.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -528,7 +528,7 @@ dependencies = [
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@ -648,7 +648,7 @@ name = "directories"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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]
@ -657,7 +657,7 @@ name = "dirs"
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source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -677,7 +677,7 @@ version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -871,7 +871,7 @@ version = "1.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1023,7 +1023,7 @@ version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1156,7 +1156,7 @@ name = "iovec"
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source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
@ -1171,7 +1171,7 @@ version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
@ -1251,7 +1251,7 @@ dependencies = [
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name = "libc"
version = "0.2.55"
version = "0.2.58"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
@ -1261,7 +1261,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1274,7 +1274,7 @@ version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1287,7 +1287,7 @@ version = "1.0.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
@ -1365,7 +1365,7 @@ name = "malloc_buf"
version = "0.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
[[package]]
@ -1383,7 +1383,7 @@ name = "memchr"
version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
[[package]]
@ -1416,7 +1416,7 @@ version = "0.1.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
[[package]]
@ -1434,7 +1434,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1447,7 +1447,7 @@ dependencies = [
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@ -1472,7 +1472,7 @@ version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1489,7 +1489,7 @@ version = "5.99.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -1499,19 +1499,19 @@ version = "0.2.33"
source = "registry+https://github.com/rust-lang/crates.io-index"
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name = "nix"
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version = "0.14.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -1576,6 +1576,7 @@ dependencies = [
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@ -1666,7 +1667,7 @@ name = "num_cpus"
version = "1.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
[[package]]
@ -1716,7 +1717,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1738,7 +1739,7 @@ dependencies = [
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@ -1754,7 +1755,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -1793,7 +1794,7 @@ name = "pancurses"
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source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1824,7 +1825,7 @@ name = "parking_lot_core"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1838,7 +1839,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -1860,7 +1861,7 @@ version = "0.7.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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]
[[package]]
@ -1935,6 +1936,14 @@ dependencies = [
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]
[[package]]
name = "pretty"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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]
[[package]]
name = "pretty_assertions"
version = "0.6.1"
@ -2044,7 +2053,7 @@ version = "0.6.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -2099,7 +2108,7 @@ name = "rand_jitter"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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@ -2111,7 +2120,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
"fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@ -2151,7 +2160,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2289,10 +2298,10 @@ version = "4.1.0"
source = "git+https://github.com/kkawakam/rustyline.git#cad8b2fc0b253831aaff143bdce5d2abec66a9c9"
dependencies = [
"dirs 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"nix 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
"nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-segmentation 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
"utf8parse 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@ -2348,7 +2357,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"core-foundation 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
"core-foundation-sys 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"security-framework-sys 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2488,7 +2497,7 @@ name = "signal-hook"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"signal-hook-registry 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2498,7 +2507,7 @@ version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"arc-swap 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -2558,7 +2567,7 @@ version = "0.1.19"
source = "git+https://github.com/jonathandturner/rust-subprocess.git?branch=is_already_escaped#6d184a680d825da4f365c063db1c4f9db3d64ba6"
dependencies = [
"crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2620,7 +2629,7 @@ version = "0.8.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2631,7 +2640,7 @@ version = "3.0.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
"remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@ -2654,7 +2663,7 @@ version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2671,7 +2680,7 @@ name = "termion"
version = "1.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@ -2682,7 +2691,7 @@ name = "termios"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -2706,7 +2715,7 @@ name = "time"
version = "0.1.42"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2914,6 +2923,11 @@ dependencies = [
"cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "typed-arena"
version = "1.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "ucd-util"
version = "0.1.3"
@ -3118,7 +3132,7 @@ name = "xcb"
version = "0.8.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -3285,7 +3299,7 @@ dependencies = [
"checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
"checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
"checksum lexical-core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e82e023e062f1d25f807ad182008fba1b46538e999f908a08cc0c29e084462e"
"checksum libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)" = "42914d39aad277d9e176efbdad68acb1d5443ab65afe0e0e4f0d49352a950880"
"checksum libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)" = "6281b86796ba5e4366000be6e9e18bf35580adf9e63fbe2294aadb587613a319"
"checksum libgit2-sys 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)" = "48441cb35dc255da8ae72825689a95368bf510659ae1ad55dc4aa88cb1789bf1"
"checksum libssh2-sys 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "126a1f4078368b163bfdee65fbab072af08a1b374a5551b21e87ade27b1fbf9d"
"checksum libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "2eb5e43362e38e2bca2fd5f5134c4d4564a23a5c28e9b95411652021a8675ebe"
@ -3312,7 +3326,7 @@ dependencies = [
"checksum native-tls 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4b2df1a4c22fd44a62147fd8f13dd0f95c9d8ca7b2610299b2a2f9cf8964274e"
"checksum ncurses 5.99.0 (registry+https://github.com/rust-lang/crates.io-index)" = "15699bee2f37e9f8828c7b35b2bc70d13846db453f2d507713b758fabe536b82"
"checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
"checksum nix 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0d10caafde29a846a82ae0af70414e4643e072993441033b2c93217957e2f867"
"checksum nix 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6c722bee1037d430d0f8e687bbdbf222f27cc6e4e68d5caf630857bb2b6dbdce"
"checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
"checksum nom 4.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2ad2a91a8e869eeb30b9cb3119ae87773a8f4ae617f41b1eb9c154b2905f7bd6"
"checksum nom 5.0.0-beta1 (registry+https://github.com/rust-lang/crates.io-index)" = "6527f311b2baba609e980e008460ab5ebff6d6da15213bb8eb193b7746eefa24"
@ -3354,6 +3368,7 @@ dependencies = [
"checksum pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5894c618ce612a3fa23881b152b608bafb8c56cfc22f434a3ba3120b40f7b587"
"checksum pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "676e8eb2b1b4c9043511a9b7bea0915320d7e502b0a079fb03f9635a5252b18c"
"checksum plist 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f4739851c08dd9a62a78beff2edf1a438517268b2c563c42fc6d9d3139e42d2a"
"checksum pretty 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f60c0d9f6fc88ecdd245d90c1920ff76a430ab34303fc778d33b1d0a4c3bf6d3"
"checksum pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3f81e1644e1b54f5a68959a29aa86cde704219254669da328ecfdf6a1f09d427"
"checksum pretty_env_logger 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df8b3f4e0475def7d9c2e5de8e5a1306949849761e107b360d03e98eafaffd61"
"checksum prettyprint 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2705417f8aa07cb6308db42e55623479c1c9667942a4d5e4174c684e5da5590d"
@ -3457,6 +3472,7 @@ dependencies = [
"checksum toml-query_derive 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3c99ca245ec273c7e75c8ee58f47b882d0146f3c2c8495158082c6671e8b5335"
"checksum try-lock 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
"checksum try_from 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "283d3b89e1368717881a9d51dad843cc435380d8109c9e47d38780a324698d8b"
"checksum typed-arena 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c6c06a92aef38bb4dc5b0df00d68496fc31307c5344c867bb61678c6e1671ec5"
"checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"
"checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
"checksum unicase 2.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a84e5511b2a947f3ae965dcb29b13b7b1691b6e7332cf5dbc1744138d5acb7f6"

1
Cargo.toml
View File

@ -59,6 +59,7 @@ ctrlc = "3.1.3"
ptree = "0.2"
clipboard = "0.5"
reqwest = "0.9"
pretty = "0.5.2"
[dependencies.pancurses]
version = "0.16"

65
src/parser.rs
View File

@ -9,14 +9,33 @@ crate use ast::Pipeline;
crate use registry::{Args, CommandConfig};
use crate::errors::ShellError;
use ast::Module;
use lexer::Lexer;
use log::trace;
use parser::PipelineParser;
use parser::{ModuleParser, ReplLineParser};
pub fn parse(input: &str) -> Result<Pipeline, ShellError> {
let _ = pretty_env_logger::try_init();
let parser = PipelineParser::new();
let parser = ReplLineParser::new();
let tokens = Lexer::new(input, false);
trace!(
"Tokens: {:?}",
tokens.clone().collect::<Result<Vec<_>, _>>()
);
match parser.parse(tokens) {
Ok(val) => Ok(val),
Err(err) => Err(ShellError::parse_error(err)),
}
}
#[allow(unused)]
pub fn parse_module(input: &str) -> Result<Module, ShellError> {
let _ = pretty_env_logger::try_init();
let parser = ModuleParser::new();
let tokens = Lexer::new(input, false);
trace!(
@ -62,6 +81,44 @@ mod tests {
assert_eq!(parsed, expected);
assert_eq!(printed, source);
let span = expected.span;
let expected_module = ModuleBuilder::spanned_items(
vec![Spanned::from_item(RawItem::Expression(expected), span)],
span.start,
span.end,
);
assert_parse_module(source, expected_module);
}
fn assert_parse_module(source: &str, expected: Module) {
let parsed = match parse_module(source) {
Ok(p) => p,
Err(ShellError::Diagnostic(diag)) => {
use language_reporting::termcolor;
let writer = termcolor::StandardStream::stdout(termcolor::ColorChoice::Auto);
let files = crate::parser::span::Files::new(source.to_string());
language_reporting::emit(
&mut writer.lock(),
&files,
&diag.diagnostic,
&language_reporting::DefaultConfig,
)
.unwrap();
panic!("Test failed")
}
Err(err) => panic!("Something went wrong during parse: {:#?}", err),
};
let printed = parsed.print();
assert_eq!(parsed, expected);
assert_eq!(printed, source);
}
macro_rules! commands {
@ -214,4 +271,8 @@ mod tests {
],
)
}
use crate::parser::ast::{ModuleBuilder, RawItem};
use crate::parser::lexer::Spanned;
}

904
src/parser/ast.rs
View File

@ -1,894 +1,16 @@
use crate::parser::lexer::{Span, Spanned};
use crate::prelude::*;
use adhoc_derive::FromStr;
use derive_new::new;
use getset::Getters;
use serde_derive::{Deserialize, Serialize};
use std::io::Write;
use std::str::FromStr;
crate mod expression;
crate mod expression_builder;
crate mod module;
crate mod module_builder;
crate mod parser_utils;
#[derive(new)]
pub struct ExpressionBuilder {
#[new(default)]
pos: usize,
}
#[allow(unused)]
impl ExpressionBuilder {
pub fn op(&mut self, input: impl Into<Operator>) -> Spanned<Operator> {
let input = input.into();
let (start, end) = self.consume(input.as_str());
self.pos = end;
ExpressionBuilder::spanned_op(input, start, end)
}
pub fn spanned_op(input: impl Into<Operator>, start: usize, end: usize) -> Spanned<Operator> {
Spanned {
span: Span::from((start, end)),
item: input.into(),
}
}
pub fn string(&mut self, input: impl Into<String>) -> Expression {
let input = input.into();
let (start, _) = self.consume("\"");
self.consume(&input);
let (_, end) = self.consume("\"");
self.pos = end;
ExpressionBuilder::spanned_string(input, start, end)
}
pub fn spanned_string(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(Leaf::String(input)),
}
}
pub fn bare(&mut self, input: impl Into<Bare>) -> Expression {
let input = input.into();
let (start, end) = self.consume(&input.body);
self.pos = end;
ExpressionBuilder::spanned_bare(input, start, end)
}
pub fn spanned_bare(input: impl Into<Bare>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(Leaf::Bare(input)),
}
}
pub fn boolean(&mut self, input: impl Into<bool>) -> Expression {
let boolean = input.into();
let (start, end) = match boolean {
true => self.consume("$yes"),
false => self.consume("$no"),
crate use expression::{
Bare, Binary, Block, Call, Expression, Flag, Leaf, Operator, ParameterIdentifier,
Parenthesized, Path, Pipeline, RawExpression, Unit, Variable,
};
crate use expression_builder::ExpressionBuilder;
crate use module::{Module};
crate use module_builder::ModuleBuilder;
self.pos = end;
ExpressionBuilder::spanned_boolean(boolean, start, end)
}
pub fn spanned_boolean(input: impl Into<bool>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(Leaf::Boolean(input)),
}
}
pub fn int(&mut self, input: impl Into<i64>) -> Expression {
let int = input.into();
let (start, end) = self.consume(&int.to_string());
self.pos = end;
ExpressionBuilder::spanned_int(int, start, end)
}
pub fn spanned_int(input: impl Into<i64>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(Leaf::Int(input)),
}
}
pub fn unit(&mut self, input: (impl Into<i64>, impl Into<Unit>)) -> Expression {
let (int, unit) = (input.0.into(), input.1.into());
let (start, _) = self.consume(&int.to_string());
let (_, end) = self.consume(&unit.to_string());
self.pos = end;
ExpressionBuilder::spanned_unit((int, unit), start, end)
}
pub fn spanned_unit(
input: (impl Into<i64>, impl Into<Unit>),
start: usize,
end: usize,
) -> Expression {
let (int, unit) = (input.0.into(), input.1.into());
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(Leaf::Unit(int, unit)),
}
}
pub fn flag(&mut self, input: impl Into<String>) -> Expression {
let input = input.into();
let (start, _) = self.consume("--");
let (_, end) = self.consume(&input);
self.pos = end;
ExpressionBuilder::spanned_flag(input, start, end)
}
pub fn spanned_flag(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Flag(Flag::Longhand(input)),
}
}
pub fn shorthand(&mut self, input: impl Into<String>) -> Expression {
let int = input.into();
let size = int.to_string().len();
let start = self.pos;
let end = self.pos + size + 1;
self.pos = end;
ExpressionBuilder::spanned_shorthand(int, start, end)
}
pub fn spanned_shorthand(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Flag(Flag::Shorthand(input)),
}
}
pub fn parens(
&mut self,
input: impl FnOnce(&mut ExpressionBuilder) -> Expression,
) -> Expression {
let (start, _) = self.consume("(");
let input = input(self);
let (_, end) = self.consume(")");
self.pos = end;
ExpressionBuilder::spanned_parens(input, start, end)
}
pub fn spanned_parens(input: Expression, start: usize, end: usize) -> Expression {
Expression {
span: Span::from((start, end)),
expr: RawExpression::Parenthesized(Box::new(Parenthesized::new(input))),
}
}
pub fn block(&mut self, input: &dyn Fn(&mut ExpressionBuilder) -> Expression) -> Expression {
let (start, _) = self.consume("{ ");
let input = input(self);
let (_, end) = self.consume(" }");
self.pos = end;
ExpressionBuilder::spanned_block(input, start, end)
}
pub fn spanned_block(input: Expression, start: usize, end: usize) -> Expression {
Expression {
span: Span::from((start, end)),
expr: RawExpression::Block(Box::new(Block::new(input))),
}
}
pub fn binary(
&mut self,
input: (
&dyn Fn(&mut ExpressionBuilder) -> Expression,
&dyn Fn(&mut ExpressionBuilder) -> Spanned<Operator>,
&dyn Fn(&mut ExpressionBuilder) -> Expression,
),
) -> Expression {
let start = self.pos;
let left = (input.0)(self);
self.consume(" ");
let operator = (input.1)(self);
self.consume(" ");
let right = (input.2)(self);
let end = self.pos;
ExpressionBuilder::spanned_binary((left, operator, right), start, end)
}
pub fn spanned_binary(
input: (
impl Into<Expression>,
impl Into<Spanned<Operator>>,
impl Into<Expression>,
),
start: usize,
end: usize,
) -> Expression {
let binary = Binary::new(input.0, input.1.into(), input.2);
Expression {
span: Span::from((start, end)),
expr: RawExpression::Binary(Box::new(binary)),
}
}
pub fn path(
&mut self,
input: (
&dyn Fn(&mut ExpressionBuilder) -> Expression,
Vec<impl Into<String>>,
),
) -> Expression {
let start = self.pos;
let head = (input.0)(self);
let mut tail = vec![];
for item in input.1 {
self.consume(".");
let item = item.into();
let (start, end) = self.consume(&item);
tail.push(Spanned::new(Span::from((start, end)), item));
}
let end = self.pos;
ExpressionBuilder::spanned_path((head, tail), start, end)
}
pub fn spanned_path(
input: (impl Into<Expression>, Vec<Spanned<String>>),
start: usize,
end: usize,
) -> Expression {
let path = Path::new(input.0.into(), input.1);
Expression {
span: Span::from((start, end)),
expr: RawExpression::Path(Box::new(path)),
}
}
pub fn call(
&mut self,
input: (
&(dyn Fn(&mut ExpressionBuilder) -> Expression),
Vec<&dyn Fn(&mut ExpressionBuilder) -> Expression>,
),
) -> Expression {
let start = self.pos;
let name = (&input.0)(self);
let mut args = vec![];
for item in input.1 {
self.consume(" ");
args.push(item(self));
}
let end = self.pos;
ExpressionBuilder::spanned_call((name, args), start, end)
}
pub fn spanned_call(input: impl Into<Call>, start: usize, end: usize) -> Expression {
let call = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Call(Box::new(call)),
}
}
pub fn var(&mut self, input: impl Into<String>) -> Expression {
let input = input.into();
let (start, _) = self.consume("$");
let (_, end) = self.consume(&input);
ExpressionBuilder::spanned_var(input, start, end)
}
pub fn spanned_var(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
let expr = match &input[..] {
"it" => RawExpression::VariableReference(Variable::It),
_ => RawExpression::VariableReference(Variable::Other(input)),
};
Expression {
span: Span::from((start, end)),
expr,
}
}
pub fn pipeline(
&mut self,
input: Vec<&dyn Fn(&mut ExpressionBuilder) -> Expression>,
) -> Pipeline {
let start = self.pos;
let mut exprs = vec![];
let mut input = input.into_iter();
let next = input.next().unwrap();
exprs.push(next(self));
for item in input {
self.consume(" | ");
exprs.push(item(self));
}
let end = self.pos;
ExpressionBuilder::spanned_pipeline(exprs, start, end)
}
pub fn spanned_pipeline(input: Vec<Expression>, start: usize, end: usize) -> Pipeline {
Pipeline {
span: Span::from((start, end)),
commands: input,
}
}
pub fn sp(&mut self) {
self.consume(" ");
}
pub fn ws(&mut self, input: &str) {
self.consume(input);
}
fn consume(&mut self, input: &str) -> (usize, usize) {
let start = self.pos;
self.pos += input.len();
(start, self.pos)
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Deserialize, Serialize)]
pub enum Operator {
Equal,
NotEqual,
LessThan,
GreaterThan,
LessThanOrEqual,
GreaterThanOrEqual,
}
impl Operator {
pub fn print(&self) -> String {
self.as_str().to_string()
}
pub fn as_str(&self) -> &str {
match *self {
Operator::Equal => "==",
Operator::NotEqual => "!=",
Operator::LessThan => "<",
Operator::GreaterThan => ">",
Operator::LessThanOrEqual => "<=",
Operator::GreaterThanOrEqual => ">=",
}
}
}
impl From<&str> for Operator {
fn from(input: &str) -> Operator {
Operator::from_str(input).unwrap()
}
}
impl FromStr for Operator {
type Err = ();
fn from_str(input: &str) -> Result<Self, <Self as std::str::FromStr>::Err> {
match input {
"==" => Ok(Operator::Equal),
"!=" => Ok(Operator::NotEqual),
"<" => Ok(Operator::LessThan),
">" => Ok(Operator::GreaterThan),
"<=" => Ok(Operator::LessThanOrEqual),
">=" => Ok(Operator::GreaterThanOrEqual),
_ => Err(()),
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub struct Expression {
crate expr: RawExpression,
crate span: Span,
}
impl std::ops::Deref for Expression {
type Target = RawExpression;
fn deref(&self) -> &RawExpression {
&self.expr
}
}
impl Expression {
crate fn print(&self) -> String {
self.expr.print()
}
crate fn as_external_arg(&self) -> String {
self.expr.as_external_arg()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum RawExpression {
Leaf(Leaf),
Flag(Flag),
Parenthesized(Box<Parenthesized>),
Block(Box<Block>),
Binary(Box<Binary>),
Path(Box<Path>),
Call(Box<Call>),
VariableReference(Variable),
}
impl RawExpression {
// crate fn leaf(leaf: impl Into<Leaf>) -> Expression {
// Expression::Leaf(leaf.into())
// }
// crate fn flag(flag: impl Into<Flag>) -> Expression {
// Expression::Flag(flag.into())
// }
// crate fn call(head: Expression, tail: Vec<Expression>) -> Expression {
// if tail.len() == 0 {
// Expression::Call(Box::new(ParsedCommand::new(head.into(), None)))
// } else {
// Expression::Call(Box::new(ParsedCommand::new(head.into(), Some(tail))))
// }
// }
// crate fn binary(
// left: impl Into<Expression>,
// operator: impl Into<Operator>,
// right: impl Into<Expression>,
// ) -> Expression {
// Expression::Binary(Box::new(Binary {
// left: left.into(),
// operator: operator.into(),
// right: right.into(),
// }))
// }
// crate fn block(expr: impl Into<Expression>) -> Expression {
// Expression::Block(Box::new(Block::new(expr.into())))
// }
crate fn print(&self) -> String {
match self {
RawExpression::Call(c) => c.print(),
RawExpression::Leaf(l) => l.print(),
RawExpression::Flag(f) => f.print(),
RawExpression::Parenthesized(p) => p.print(),
RawExpression::Block(b) => b.print(),
RawExpression::VariableReference(r) => r.print(),
RawExpression::Path(p) => p.print(),
RawExpression::Binary(b) => b.print(),
}
}
crate fn as_external_arg(&self) -> String {
match self {
RawExpression::Call(c) => c.as_external_arg(),
RawExpression::Leaf(l) => l.as_external_arg(),
RawExpression::Flag(f) => f.as_external_arg(),
RawExpression::Parenthesized(p) => p.as_external_arg(),
RawExpression::Block(b) => b.as_external_arg(),
RawExpression::VariableReference(r) => r.as_external_arg(),
RawExpression::Path(p) => p.as_external_arg(),
RawExpression::Binary(b) => b.as_external_arg(),
}
}
crate fn as_string(&self) -> Option<String> {
match self {
RawExpression::Leaf(Leaf::String(s)) => Some(s.clone()),
RawExpression::Leaf(Leaf::Bare(path)) => Some(path.to_string()),
_ => None,
}
}
#[allow(unused)]
crate fn as_bare(&self) -> Option<String> {
match self {
RawExpression::Leaf(Leaf::Bare(p)) => Some(p.to_string()),
_ => None,
}
}
#[allow(unused)]
crate fn as_block(&self) -> Option<Block> {
match self {
RawExpression::Block(block) => Some(*block.clone()),
_ => None,
}
}
crate fn is_flag(&self, value: &str) -> bool {
match self {
RawExpression::Flag(Flag::Longhand(f)) if value == f => true,
_ => false,
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Block {
crate expr: Expression,
}
impl Block {
fn print(&self) -> String {
format!("{{ {} }}", self.expr.print())
}
fn as_external_arg(&self) -> String {
format!("{{ {} }}", self.expr.as_external_arg())
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Parenthesized {
crate expr: Expression,
}
impl Parenthesized {
fn print(&self) -> String {
format!("({})", self.expr.print())
}
fn as_external_arg(&self) -> String {
format!("({})", self.expr.as_external_arg())
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Getters, new)]
pub struct Path {
#[get = "crate"]
head: Expression,
#[get = "crate"]
tail: Vec<Spanned<String>>,
}
impl Path {
crate fn print(&self) -> String {
let mut out = self.head.print();
for item in self.tail.iter() {
out.push_str(&format!(".{}", item.item));
}
out
}
crate fn as_external_arg(&self) -> String {
let mut out = self.head.as_external_arg();
for item in self.tail.iter() {
out.push_str(&format!(".{}", item.item));
}
out
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum Variable {
It,
Other(String),
}
impl Variable {
fn print(&self) -> String {
match self {
Variable::It => format!("$it"),
Variable::Other(s) => format!("${}", s),
}
}
fn as_external_arg(&self) -> String {
self.print()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Bare {
body: String,
}
impl From<String> for Bare {
fn from(input: String) -> Bare {
Bare { body: input }
}
}
impl From<&str> for Bare {
fn from(input: &str) -> Bare {
Bare {
body: input.to_string(),
}
}
}
impl Bare {
crate fn from_string(string: impl Into<String>) -> Bare {
Bare {
body: string.into(),
}
}
crate fn to_string(&self) -> String {
self.body.to_string()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, FromStr)]
pub enum Unit {
#[adhoc(regex = "^B$")]
B,
#[adhoc(regex = "^KB$")]
KB,
#[adhoc(regex = "^MB$")]
MB,
#[adhoc(regex = "^GB$")]
GB,
#[adhoc(regex = "^TB$")]
TB,
#[adhoc(regex = "^PB$")]
PB,
}
impl From<&str> for Unit {
fn from(input: &str) -> Unit {
Unit::from_str(input).unwrap()
}
}
impl Unit {
crate fn compute(&self, size: i64) -> Value {
Value::int(match self {
Unit::B => size,
Unit::KB => size * 1024,
Unit::MB => size * 1024 * 1024,
Unit::GB => size * 1024 * 1024 * 1024,
Unit::TB => size * 1024 * 1024 * 1024 * 1024,
Unit::PB => size * 1024 * 1024 * 1024 * 1024 * 1024,
})
}
crate fn to_string(&self) -> &str {
match self {
Unit::B => "B",
Unit::KB => "KB",
Unit::MB => "MB",
Unit::GB => "GB",
Unit::TB => "TB",
Unit::PB => "PB",
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum Leaf {
String(String),
Bare(Bare),
Boolean(bool),
Int(i64),
Unit(i64, Unit),
}
impl Leaf {
fn print(&self) -> String {
match self {
Leaf::String(s) => format!("{:?}", s),
Leaf::Bare(path) => format!("{}", path.to_string()),
Leaf::Boolean(b) => format!("{}", b),
Leaf::Int(i) => format!("{}", i),
Leaf::Unit(i, unit) => format!("{}{:?}", i, unit),
}
}
fn as_external_arg(&self) -> String {
match self {
Leaf::String(s) => format!("\"{}\"", s),
Leaf::Bare(path) => path.to_string(),
Leaf::Boolean(b) => b.to_string(),
Leaf::Int(i) => i.to_string(),
Leaf::Unit(i, unit) => format!("{}{:?}", i, unit),
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub struct Binary {
crate left: Expression,
crate operator: Spanned<Operator>,
crate right: Expression,
}
impl Binary {
crate fn new(
left: impl Into<Expression>,
operator: Spanned<Operator>,
right: impl Into<Expression>,
) -> Binary {
Binary {
left: left.into(),
operator,
right: right.into(),
}
}
}
impl Binary {
fn print(&self) -> String {
format!(
"{} {} {}",
self.left.print(),
self.operator.print(),
self.right.print()
)
}
fn as_external_arg(&self) -> String {
format!(
"{} {} {}",
self.left.as_external_arg(),
self.operator.print(),
self.right.as_external_arg()
)
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum Flag {
Shorthand(String),
Longhand(String),
}
impl Flag {
#[allow(unused)]
crate fn print(&self) -> String {
match self {
Flag::Shorthand(s) => format!("-{}", s),
Flag::Longhand(s) => format!("--{}", s),
}
}
#[allow(unused)]
crate fn as_external_arg(&self) -> String {
self.print()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Call {
crate name: Expression,
crate args: Option<Vec<Expression>>,
}
impl From<(Expression, Vec<Expression>)> for Call {
fn from(input: (Expression, Vec<Expression>)) -> Call {
Call {
name: input.0,
args: if input.1.len() == 0 {
None
} else {
Some(input.1)
},
}
}
}
impl From<Expression> for Call {
fn from(input: Expression) -> Call {
Call {
name: input,
args: None,
}
}
}
impl Call {
fn as_external_arg(&self) -> String {
let mut out = vec![];
write!(out, "{}", self.name.as_external_arg()).unwrap();
if let Some(args) = &self.args {
for arg in args.iter() {
write!(out, " {}", arg.as_external_arg()).unwrap();
}
}
String::from_utf8_lossy(&out).into_owned()
}
fn print(&self) -> String {
let mut out = vec![];
write!(out, "{}", self.name.print()).unwrap();
if let Some(args) = &self.args {
for arg in args.iter() {
write!(out, " {}", arg.print()).unwrap();
}
}
String::from_utf8_lossy(&out).into_owned()
}
}
#[derive(new, Debug, Eq, PartialEq)]
pub struct Pipeline {
crate commands: Vec<Expression>,
crate span: Span,
}
impl Pipeline {
crate fn from_parts(
command: Expression,
rest: Vec<Expression>,
start: usize,
end: usize,
) -> Pipeline {
let mut commands = vec![command];
commands.extend(rest);
Pipeline {
commands,
span: Span::from((start, end)),
}
}
#[allow(unused)]
crate fn print(&self) -> String {
itertools::join(self.commands.iter().map(|i| i.print()), " | ")
}
}
#[cfg(test)]
crate use module::RawItem;

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src/parser/ast/expression.rs Normal file
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@ -0,0 +1,541 @@
use crate::parser::lexer::{Span, Spanned};
use crate::prelude::*;
use adhoc_derive::FromStr;
use derive_new::new;
use getset::Getters;
use serde_derive::{Deserialize, Serialize};
use std::io::Write;
use std::str::FromStr;
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Deserialize, Serialize)]
pub enum Operator {
Equal,
NotEqual,
LessThan,
GreaterThan,
LessThanOrEqual,
GreaterThanOrEqual,
}
impl Operator {
pub fn print(&self) -> String {
self.as_str().to_string()
}
pub fn as_str(&self) -> &str {
match *self {
Operator::Equal => "==",
Operator::NotEqual => "!=",
Operator::LessThan => "<",
Operator::GreaterThan => ">",
Operator::LessThanOrEqual => "<=",
Operator::GreaterThanOrEqual => ">=",
}
}
}
impl From<&str> for Operator {
fn from(input: &str) -> Operator {
Operator::from_str(input).unwrap()
}
}
impl FromStr for Operator {
type Err = ();
fn from_str(input: &str) -> Result<Self, <Self as std::str::FromStr>::Err> {
match input {
"==" => Ok(Operator::Equal),
"!=" => Ok(Operator::NotEqual),
"<" => Ok(Operator::LessThan),
">" => Ok(Operator::GreaterThan),
"<=" => Ok(Operator::LessThanOrEqual),
">=" => Ok(Operator::GreaterThanOrEqual),
_ => Err(()),
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub struct Expression {
crate expr: RawExpression,
crate span: Span,
}
impl std::ops::Deref for Expression {
type Target = RawExpression;
fn deref(&self) -> &RawExpression {
&self.expr
}
}
impl Expression {
crate fn print(&self) -> String {
self.expr.print()
}
crate fn as_external_arg(&self) -> String {
self.expr.as_external_arg()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum RawExpression {
Leaf(Leaf),
Flag(Flag),
Parenthesized(Box<Parenthesized>),
Block(Box<Block>),
Binary(Box<Binary>),
Path(Box<Path>),
Call(Box<Call>),
VariableReference(Variable),
}
impl RawExpression {
crate fn print(&self) -> String {
match self {
RawExpression::Call(c) => c.print(),
RawExpression::Leaf(l) => l.print(),
RawExpression::Flag(f) => f.print(),
RawExpression::Parenthesized(p) => p.print(),
RawExpression::Block(b) => b.print(),
RawExpression::VariableReference(r) => r.print(),
RawExpression::Path(p) => p.print(),
RawExpression::Binary(b) => b.print(),
}
}
crate fn as_external_arg(&self) -> String {
match self {
RawExpression::Call(c) => c.as_external_arg(),
RawExpression::Leaf(l) => l.as_external_arg(),
RawExpression::Flag(f) => f.as_external_arg(),
RawExpression::Parenthesized(p) => p.as_external_arg(),
RawExpression::Block(b) => b.as_external_arg(),
RawExpression::VariableReference(r) => r.as_external_arg(),
RawExpression::Path(p) => p.as_external_arg(),
RawExpression::Binary(b) => b.as_external_arg(),
}
}
crate fn as_string(&self) -> Option<String> {
match self {
RawExpression::Leaf(Leaf::String(s)) => Some(s.to_string()),
RawExpression::Leaf(Leaf::Bare(path)) => Some(path.to_string()),
_ => None,
}
}
#[allow(unused)]
crate fn as_bare(&self) -> Option<String> {
match self {
RawExpression::Leaf(Leaf::Bare(p)) => Some(p.to_string()),
_ => None,
}
}
#[allow(unused)]
crate fn as_block(&self) -> Option<Block> {
match self {
RawExpression::Block(block) => Some(*block.clone()),
_ => None,
}
}
crate fn is_flag(&self, value: &str) -> bool {
match self {
RawExpression::Flag(Flag::Longhand(f)) if value == f => true,
_ => false,
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Block {
crate expr: Expression,
}
impl Block {
crate fn print(&self) -> String {
format!("{{ {} }}", self.expr.print())
}
fn as_external_arg(&self) -> String {
format!("{{ {} }}", self.expr.as_external_arg())
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Parenthesized {
crate expr: Expression,
}
impl Parenthesized {
fn print(&self) -> String {
format!("({})", self.expr.print())
}
fn as_external_arg(&self) -> String {
format!("({})", self.expr.as_external_arg())
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Getters, new)]
pub struct Path {
#[get = "crate"]
head: Expression,
#[get = "crate"]
tail: Vec<Spanned<String>>,
}
impl Path {
crate fn print(&self) -> String {
let mut out = self.head.print();
for item in self.tail.iter() {
out.push_str(&format!(".{}", item.item));
}
out
}
crate fn as_external_arg(&self) -> String {
let mut out = self.head.as_external_arg();
for item in self.tail.iter() {
out.push_str(&format!(".{}", item.item));
}
out
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum Variable {
It,
Other(String),
}
impl Variable {
crate fn from_string(s: &str) -> Variable {
match s {
"it" => ast::Variable::It,
_ => ast::Variable::Other(s.to_string()),
}
}
fn print(&self) -> String {
match self {
Variable::It => format!("$it"),
Variable::Other(s) => format!("${}", s),
}
}
fn as_external_arg(&self) -> String {
self.print()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new, Getters)]
pub struct Bare {
#[get = "crate"]
body: String,
}
impl From<String> for Bare {
fn from(input: String) -> Bare {
Bare { body: input }
}
}
impl From<&str> for Bare {
fn from(input: &str) -> Bare {
Bare {
body: input.to_string(),
}
}
}
impl Bare {
crate fn from_string(string: impl Into<String>) -> Bare {
Bare {
body: string.into(),
}
}
crate fn to_string(&self) -> String {
self.body.to_string()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, FromStr)]
pub enum Unit {
#[adhoc(regex = "^B$")]
B,
#[adhoc(regex = "^KB$")]
KB,
#[adhoc(regex = "^MB$")]
MB,
#[adhoc(regex = "^GB$")]
GB,
#[adhoc(regex = "^TB$")]
TB,
#[adhoc(regex = "^PB$")]
PB,
}
impl From<&str> for Unit {
fn from(input: &str) -> Unit {
Unit::from_str(input).unwrap()
}
}
impl Unit {
crate fn compute(&self, size: i64) -> Value {
Value::int(match self {
Unit::B => size,
Unit::KB => size * 1024,
Unit::MB => size * 1024 * 1024,
Unit::GB => size * 1024 * 1024 * 1024,
Unit::TB => size * 1024 * 1024 * 1024 * 1024,
Unit::PB => size * 1024 * 1024 * 1024 * 1024 * 1024,
})
}
crate fn to_string(&self) -> &str {
match self {
Unit::B => "B",
Unit::KB => "KB",
Unit::MB => "MB",
Unit::GB => "GB",
Unit::TB => "TB",
Unit::PB => "PB",
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum RawParameterIdentifier {
#[allow(unused)]
Bare(Spanned<Bare>),
Var(Spanned<Variable>),
ShorthandFlag(Spanned<String>),
LonghandFlag(Spanned<String>),
}
impl RawParameterIdentifier {
#[allow(unused)]
pub fn print(&self) -> String {
match self {
RawParameterIdentifier::Bare(b) => b.to_string(),
RawParameterIdentifier::Var(v) => v.print(),
RawParameterIdentifier::ShorthandFlag(f) => f.to_string(),
RawParameterIdentifier::LonghandFlag(f) => f.to_string(),
}
}
}
pub type ParameterIdentifier = Spanned<RawParameterIdentifier>;
impl ParameterIdentifier {
#[allow(unused)]
pub fn bare(bare: Spanned<Bare>, span: impl Into<Span>) -> ParameterIdentifier {
let id = RawParameterIdentifier::Bare(bare);
Spanned::from_item(id, span)
}
pub fn var(var: Spanned<Variable>, span: impl Into<Span>) -> ParameterIdentifier {
let id = RawParameterIdentifier::Var(var);
Spanned::from_item(id, span)
}
pub fn flag(flag: Spanned<String>, span: impl Into<Span>) -> ParameterIdentifier {
let id = RawParameterIdentifier::LonghandFlag(flag);
Spanned::from_item(id, span)
}
pub fn shorthand(flag: Spanned<String>, span: impl Into<Span>) -> ParameterIdentifier {
let id = RawParameterIdentifier::ShorthandFlag(flag);
Spanned::from_item(id, span)
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum Leaf {
String(String),
Bare(Bare),
Boolean(bool),
Int(i64),
Unit(i64, Unit),
}
impl Leaf {
fn print(&self) -> String {
match self {
Leaf::String(s) => format!("{:?}", s),
Leaf::Bare(path) => format!("{}", path.to_string()),
Leaf::Boolean(b) => format!("{}", b),
Leaf::Int(i) => format!("{}", i),
Leaf::Unit(i, unit) => format!("{}{:?}", i, unit),
}
}
fn as_external_arg(&self) -> String {
match self {
Leaf::String(s) => format!("\"{}\"", s),
Leaf::Bare(path) => format!("{}", path.to_string()),
Leaf::Boolean(b) => format!("{}", b),
Leaf::Int(i) => format!("{}", i),
Leaf::Unit(i, unit) => format!("{}{:?}", i, unit),
}
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub struct Binary {
crate left: Expression,
crate operator: Spanned<Operator>,
crate right: Expression,
}
impl Binary {
crate fn new(
left: impl Into<Expression>,
operator: Spanned<Operator>,
right: impl Into<Expression>,
) -> Binary {
Binary {
left: left.into(),
operator,
right: right.into(),
}
}
}
impl Binary {
fn print(&self) -> String {
format!(
"{} {} {}",
self.left.print(),
self.operator.print(),
self.right.print()
)
}
fn as_external_arg(&self) -> String {
format!(
"{} {} {}",
self.left.as_external_arg(),
self.operator.print(),
self.right.as_external_arg()
)
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum Flag {
Shorthand(String),
Longhand(String),
}
impl Flag {
#[allow(unused)]
crate fn print(&self) -> String {
match self {
Flag::Shorthand(s) => format!("-{}", s),
Flag::Longhand(s) => format!("--{}", s),
}
}
#[allow(unused)]
crate fn as_external_arg(&self) -> String {
self.print()
}
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq, new)]
pub struct Call {
crate name: Expression,
crate args: Option<Vec<Expression>>,
}
impl From<(Expression, Vec<Expression>)> for Call {
fn from(input: (Expression, Vec<Expression>)) -> Call {
Call {
name: input.0,
args: if input.1.len() == 0 {
None
} else {
Some(input.1)
},
}
}
}
impl From<Expression> for Call {
fn from(input: Expression) -> Call {
Call {
name: input,
args: None,
}
}
}
impl Call {
fn as_external_arg(&self) -> String {
let mut out = vec![];
write!(out, "{}", self.name.as_external_arg()).unwrap();
if let Some(args) = &self.args {
for arg in args.iter() {
write!(out, " {}", arg.as_external_arg()).unwrap();
}
}
String::from_utf8_lossy(&out).into_owned()
}
fn print(&self) -> String {
let mut out = vec![];
write!(out, "{}", self.name.print()).unwrap();
if let Some(args) = &self.args {
for arg in args.iter() {
write!(out, " {}", arg.print()).unwrap();
}
}
String::from_utf8_lossy(&out).into_owned()
}
}
#[derive(new, Debug, Eq, PartialEq, Clone)]
pub struct Pipeline {
crate commands: Vec<Expression>,
crate span: Span,
}
impl Pipeline {
crate fn from_parts(
command: Expression,
rest: Vec<Expression>,
start: usize,
end: usize,
) -> Pipeline {
let mut commands = vec![command];
commands.extend(rest);
Pipeline {
commands,
span: Span::from((start, end)),
}
}
#[allow(unused)]
crate fn print(&self) -> String {
itertools::join(self.commands.iter().map(|i| i.print()), " | ")
}
}

401
src/parser/ast/expression_builder.rs Normal file
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@ -0,0 +1,401 @@
use crate::parser::lexer::{Span, Spanned};
use derive_new::new;
use crate::parser::ast::{self, Expression, RawExpression};
#[derive(new)]
pub struct ExpressionBuilder {
#[new(default)]
pos: usize,
}
#[allow(unused)]
impl ExpressionBuilder {
pub fn op(&mut self, input: impl Into<ast::Operator>) -> Spanned<ast::Operator> {
let input = input.into();
let (start, end) = self.consume(input.as_str());
self.pos = end;
ExpressionBuilder::spanned_op(input, start, end)
}
pub fn spanned_op(
input: impl Into<ast::Operator>,
start: usize,
end: usize,
) -> Spanned<ast::Operator> {
Spanned {
span: Span::from((start, end)),
item: input.into(),
}
}
pub fn string(&mut self, input: impl Into<String>) -> Expression {
let input = input.into();
let (start, _) = self.consume("\"");
self.consume(&input);
let (_, end) = self.consume("\"");
self.pos = end;
ExpressionBuilder::spanned_string(input, start, end)
}
pub fn spanned_string(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(ast::Leaf::String(input)),
}
}
pub fn bare(&mut self, input: impl Into<ast::Bare>) -> Expression {
let input = input.into();
let (start, end) = self.consume(input.body());
self.pos = end;
ExpressionBuilder::spanned_bare(input, start, end)
}
pub fn spanned_bare(input: impl Into<ast::Bare>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(ast::Leaf::Bare(input)),
}
}
pub fn boolean(&mut self, input: impl Into<bool>) -> Expression {
let boolean = input.into();
let (start, end) = match boolean {
true => self.consume("$yes"),
false => self.consume("$no"),
};
self.pos = end;
ExpressionBuilder::spanned_boolean(boolean, start, end)
}
pub fn spanned_boolean(input: impl Into<bool>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(ast::Leaf::Boolean(input)),
}
}
pub fn int(&mut self, input: impl Into<i64>) -> Expression {
let int = input.into();
let (start, end) = self.consume(&int.to_string());
self.pos = end;
ExpressionBuilder::spanned_int(int, start, end)
}
pub fn spanned_int(input: impl Into<i64>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(ast::Leaf::Int(input)),
}
}
pub fn unit(&mut self, input: (impl Into<i64>, impl Into<ast::Unit>)) -> Expression {
let (int, unit) = (input.0.into(), input.1.into());
let (start, _) = self.consume(&int.to_string());
let (_, end) = self.consume(&unit.to_string());
self.pos = end;
ExpressionBuilder::spanned_unit((int, unit), start, end)
}
pub fn spanned_unit(
input: (impl Into<i64>, impl Into<ast::Unit>),
start: usize,
end: usize,
) -> Expression {
let (int, unit) = (input.0.into(), input.1.into());
Expression {
span: Span::from((start, end)),
expr: RawExpression::Leaf(ast::Leaf::Unit(int, unit)),
}
}
pub fn flag(&mut self, input: impl Into<String>) -> Expression {
let input = input.into();
let (start, _) = self.consume("--");
let (_, end) = self.consume(&input);
self.pos = end;
ExpressionBuilder::spanned_flag(input, start, end)
}
pub fn spanned_flag(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Flag(ast::Flag::Longhand(input)),
}
}
pub fn shorthand(&mut self, input: impl Into<String>) -> Expression {
let int = input.into();
let size = int.to_string().len();
let start = self.pos;
let end = self.pos + size + 1;
self.pos = end;
ExpressionBuilder::spanned_shorthand(int, start, end)
}
pub fn spanned_shorthand(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Flag(ast::Flag::Shorthand(input)),
}
}
pub fn parens(
&mut self,
input: impl FnOnce(&mut ExpressionBuilder) -> Expression,
) -> Expression {
let (start, _) = self.consume("(");
let input = input(self);
let (_, end) = self.consume(")");
self.pos = end;
ExpressionBuilder::spanned_parens(input, start, end)
}
pub fn spanned_parens(input: Expression, start: usize, end: usize) -> Expression {
Expression {
span: Span::from((start, end)),
expr: RawExpression::Parenthesized(Box::new(ast::Parenthesized::new(input))),
}
}
pub fn raw_block(
&mut self,
input: &dyn Fn(&mut ExpressionBuilder) -> Expression,
) -> Spanned<ast::Block> {
let (start, _) = self.consume("{ ");
let input = input(self);
let (_, end) = self.consume(" }");
self.pos = end;
ExpressionBuilder::spanned_raw_block(input, start, end)
}
pub fn spanned_raw_block(input: Expression, start: usize, end: usize) -> Spanned<ast::Block> {
Spanned::from_item(ast::Block::new(input), (start, end))
}
pub fn block(&mut self, input: &dyn Fn(&mut ExpressionBuilder) -> Expression) -> Expression {
let (start, _) = self.consume("{ ");
let input = input(self);
let (_, end) = self.consume(" }");
self.pos = end;
ExpressionBuilder::spanned_block(input, start, end)
}
pub fn spanned_block(input: Expression, start: usize, end: usize) -> Expression {
let block = ast::Block::new(input);
Expression {
span: Span::from((start, end)),
expr: RawExpression::Block(Box::new(block)),
}
}
pub fn binary(
&mut self,
input: (
&dyn Fn(&mut ExpressionBuilder) -> Expression,
&dyn Fn(&mut ExpressionBuilder) -> Spanned<ast::Operator>,
&dyn Fn(&mut ExpressionBuilder) -> Expression,
),
) -> Expression {
let start = self.pos;
let left = (input.0)(self);
self.consume(" ");
let operator = (input.1)(self);
self.consume(" ");
let right = (input.2)(self);
let end = self.pos;
ExpressionBuilder::spanned_binary((left, operator, right), start, end)
}
pub fn spanned_binary(
input: (
impl Into<Expression>,
impl Into<Spanned<ast::Operator>>,
impl Into<Expression>,
),
start: usize,
end: usize,
) -> Expression {
let binary = ast::Binary::new(input.0, input.1.into(), input.2);
Expression {
span: Span::from((start, end)),
expr: RawExpression::Binary(Box::new(binary)),
}
}
pub fn path(
&mut self,
input: (
&dyn Fn(&mut ExpressionBuilder) -> Expression,
Vec<impl Into<String>>,
),
) -> Expression {
let start = self.pos;
let head = (input.0)(self);
let mut tail = vec![];
for item in input.1 {
self.consume(".");
let item = item.into();
let (start, end) = self.consume(&item);
tail.push(Spanned::new(Span::from((start, end)), item));
}
let end = self.pos;
ExpressionBuilder::spanned_path((head, tail), start, end)
}
pub fn spanned_path(
input: (impl Into<Expression>, Vec<Spanned<String>>),
start: usize,
end: usize,
) -> Expression {
let path = ast::Path::new(input.0.into(), input.1);
Expression {
span: Span::from((start, end)),
expr: RawExpression::Path(Box::new(path)),
}
}
pub fn call(
&mut self,
input: (
&(dyn Fn(&mut ExpressionBuilder) -> Expression),
Vec<&dyn Fn(&mut ExpressionBuilder) -> Expression>,
),
) -> Expression {
let start = self.pos;
let name = (&input.0)(self);
let mut args = vec![];
for item in input.1 {
self.consume(" ");
args.push(item(self));
}
let end = self.pos;
ExpressionBuilder::spanned_call((name, args), start, end)
}
pub fn spanned_call(input: impl Into<ast::Call>, start: usize, end: usize) -> Expression {
let call = input.into();
Expression {
span: Span::from((start, end)),
expr: RawExpression::Call(Box::new(call)),
}
}
pub fn var(&mut self, input: impl Into<String>) -> Expression {
let input = input.into();
let (start, _) = self.consume("$");
let (_, end) = self.consume(&input);
ExpressionBuilder::spanned_var(input, start, end)
}
pub fn spanned_var(input: impl Into<String>, start: usize, end: usize) -> Expression {
let input = input.into();
let expr = match &input[..] {
"it" => RawExpression::VariableReference(ast::Variable::It),
_ => RawExpression::VariableReference(ast::Variable::Other(input)),
};
Expression {
span: Span::from((start, end)),
expr,
}
}
pub fn pipeline(
&mut self,
input: Vec<&dyn Fn(&mut ExpressionBuilder) -> Expression>,
) -> ast::Pipeline {
let start = self.pos;
let mut exprs = vec![];
let mut input = input.into_iter();
let next = input.next().unwrap();
exprs.push(next(self));
for item in input {
self.consume(" | ");
exprs.push(item(self));
}
let end = self.pos;
ExpressionBuilder::spanned_pipeline(exprs, start, end)
}
pub fn spanned_pipeline(input: Vec<Expression>, start: usize, end: usize) -> ast::Pipeline {
ast::Pipeline {
span: Span::from((start, end)),
commands: input,
}
}
pub fn sp(&mut self) {
self.consume(" ");
}
pub fn ws(&mut self, input: &str) {
self.consume(input);
}
fn consume(&mut self, input: &str) -> (usize, usize) {
let start = self.pos;
self.pos += input.len();
(start, self.pos)
}
}

119
src/parser/ast/module.rs Normal file
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@ -0,0 +1,119 @@
use crate::parser::ast;
use crate::parser::lexer::{Span, Spanned};
use derive_new::new;
#[derive(new, Eq, PartialEq, Clone, Debug)]
pub struct Module {
span: Span,
items: Vec<Item>,
}
impl Module {
#[allow(unused)]
crate fn print(&self) -> String {
let mut iter = self.items.iter();
let first = iter.next().unwrap();
let mut out = first.print();
for item in iter {
out.push_str(&format!("\n{}", item.print()));
}
out
}
}
#[derive(Eq, PartialEq, Clone, Debug)]
pub enum RawItem {
Expression(ast::Pipeline),
#[allow(unused)]
Function(Function),
}
impl RawItem {
fn print(&self) -> String {
match self {
RawItem::Expression(p) => p.print(),
RawItem::Function(f) => f.print(),
}
}
}
pub type Item = Spanned<RawItem>;
#[derive(Eq, PartialEq, Clone, Debug)]
pub enum Type {
Any,
Int,
Decimal,
Bytes,
Text,
Boolean,
Date,
Object,
List,
Block,
// Object(IndexMap<Spanned<String>, Spanned<Type>>),
// List(Box<Spanned<Type>>),
// Block {
// arguments: Spanned<Vec<Spanned<Type>>>,
// return_type: Box<Spanned<Type>>,
// },
}
impl Type {
#[allow(unused)]
crate fn print(&self) -> String {
use Type::*;
match self {
Any => "any",
Int => "int",
Decimal => "decimal",
Bytes => "bytes",
Text => "text",
Boolean => "boolean",
Date => "date",
Object => "object",
List => "list",
Block => "block",
}
.to_string()
}
}
#[derive(Eq, PartialEq, Clone, Debug, new)]
pub struct FormalParameter {
name: ast::ParameterIdentifier,
ty: Spanned<Type>,
span: Span,
}
#[derive(Eq, PartialEq, Clone, Debug, new)]
pub struct Function {
name: Spanned<ast::Bare>,
params: Vec<FormalParameter>,
return_type: Option<Box<Spanned<Type>>>,
body: Spanned<ast::Block>,
}
impl Function {
crate fn print(&self) -> String {
use pretty::{BoxDoc, Doc};
let doc: Doc<BoxDoc<()>> = Doc::text("function")
.append(Doc::space())
.append(Doc::text(self.name.item.to_string()))
// todo: signature
.append(Doc::space())
.append(Doc::text("{"))
.append(Doc::newline())
.append(Doc::text(self.body.print()).nest(1))
.append(Doc::newline())
.append(Doc::text("}"));
format!("{}", doc.pretty(80))
}
}

77
src/parser/ast/module_builder.rs Normal file
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@ -0,0 +1,77 @@
use crate::parser::ast::module::{Item, Module};
use crate::parser::ast::{self, module};
use crate::parser::lexer::{Span, Spanned};
use derive_new::new;
#[derive(new)]
pub struct ModuleBuilder {
#[new(default)]
pos: usize,
}
#[allow(unused)]
impl ModuleBuilder {
// crate fn function(&mut self, input: ) -> Function {}
crate fn spanned_function(
input: (
Spanned<ast::Bare>,
Vec<module::FormalParameter>,
Option<Spanned<module::Type>>,
Spanned<ast::Block>,
),
start: usize,
end: usize,
) -> module::Function {
module::Function::new(input.0, input.1, input.2.map(Box::new), input.3)
}
crate fn spanned_formal_parameter(
input: (ast::ParameterIdentifier, Spanned<module::Type>),
start: usize,
end: usize,
) -> module::FormalParameter {
module::FormalParameter::new(input.0, input.1, Span::from((start, end)))
}
crate fn items(&mut self, input: Vec<&dyn Fn(&mut ModuleBuilder) -> Item>) -> Module {
let start = self.pos;
let mut items = vec![];
let mut input = input.into_iter();
let next = input.next().unwrap();
items.push(next(self));
for item in input {
self.consume(" | ");
items.push(item(self));
}
let end = self.pos;
ModuleBuilder::spanned_items(items, start, end)
}
pub fn spanned_items(input: Vec<Item>, start: usize, end: usize) -> ast::Module {
ast::Module::new(Span::from((start, end)), input)
}
pub fn sp(&mut self) {
self.consume(" ");
}
pub fn ws(&mut self, input: &str) {
self.consume(input);
}
pub fn newline(&mut self) {
self.consume("\n");
}
fn consume(&mut self, input: &str) -> (usize, usize) {
let start = self.pos;
self.pos += input.len();
(start, self.pos)
}
}

5
src/parser/ast/parser_utils.rs Normal file
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@ -0,0 +1,5 @@
crate fn concat<T>(item: T, rest: Vec<T>) -> Vec<T> {
let mut out = vec![item];
out.extend(rest);
out
}

557
src/parser/lexer.rs
View File

@ -2,6 +2,7 @@ use crate::errors::ShellError;
use derive_new::new;
use log::trace;
use logos_derive::Logos;
use std::collections::VecDeque;
use std::ops::Range;
#[derive(Debug, Clone, Copy, Eq, PartialEq, Logos)]
@ -13,6 +14,10 @@ crate enum TopToken {
#[end]
END,
#[token = "function"]
#[callback = "after_function"]
Function,
#[regex = "-?[0-9]+"]
#[callback = "after_num"]
Num,
@ -27,7 +32,7 @@ crate enum TopToken {
#[callback = "start_variable"]
Dollar,
#[regex = r#"[^\s0-9"'$\-][^\s"']*"#]
#[regex = r#"[^\s0-9"'$\-(){}][^\s"'(){}]*"#]
#[callback = "end_bare_variable"]
Bare,
@ -73,16 +78,21 @@ crate enum TopToken {
#[token = "-"]
Dash,
#[regex = r"\s+"]
#[regex = r"[^\S\r\n]"]
Whitespace,
#[regex = r"(\r\n|\n)"]
Newline,
}
impl TopToken {
fn to_token(&self) -> Option<Token> {
fn to_token(&self, _text: &str) -> Option<Token> {
use TopToken::*;
let result = match self {
END => return None,
Function => Token::KeywordFunction,
Newline => Token::Newline,
Num => Token::Num,
SQString => Token::SQString,
DQString => Token::DQString,
@ -112,17 +122,187 @@ impl TopToken {
fn after_num<S>(lex: &mut logos::Lexer<TopToken, S>) {
trace!("after_num EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::AfterNum;
lex.extras.push(LexerStateName::AfterNum);
}
fn after_function<S>(lex: &mut logos::Lexer<TopToken, S>) {
trace!("after_function EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::AfterFunction);
}
fn start_variable<S>(lex: &mut logos::Lexer<TopToken, S>) {
trace!("start_variable EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::Var;
lex.extras.push(LexerStateName::VariableToken);
}
fn end_bare_variable<S>(lex: &mut logos::Lexer<TopToken, S>) {
trace!("end_variable EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::AfterVariableToken;
trace!("end_bare_variable EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::AfterVariableToken);
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
#[extras = "LexerState"]
crate enum AfterFunction {
#[error]
Error,
#[end]
END,
#[regex = r"[A-Za-z][A-Za-z0-9_\-]*"]
#[callback = "after_function_name"]
CommandName,
#[token = "{"]
#[callback = "start_function_block"]
OpenBrace,
#[regex = r"[^\S\r\n]"]
Whitespace,
}
impl AfterFunction {
fn to_token(&self) -> Option<Token> {
use AfterFunction::*;
let result = match self {
END => return None,
CommandName => Token::CommandName,
Whitespace => Token::Whitespace,
OpenBrace => Token::OpenBrace,
Error => unreachable!("Don't call to_token with the error variant"),
};
Some(result)
}
}
fn after_function_name<S>(lex: &mut logos::Lexer<AfterFunction, S>) {
trace!("after_function_name EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::AfterFunctionName);
}
fn start_function_block<S>(lex: &mut logos::Lexer<AfterFunction, S>) {
trace!("start_function_block EXTRAS={:?}", lex.extras);
lex.extras.pop();
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
#[extras = "LexerState"]
crate enum AfterFunctionName {
#[error]
Error,
#[end]
END,
#[token = "("]
#[callback = "start_param_list"]
StartParamList,
#[regex = r"[^\S\r\n]"]
Whitespace,
}
impl AfterFunctionName {
fn to_token(&self) -> Option<Token> {
use AfterFunctionName::*;
let result = match self {
END => return None,
StartParamList => Token::StartParamList,
Whitespace => Token::Whitespace,
Error => unreachable!("Don't call to_token with the error variant"),
};
Some(result)
}
}
fn start_param_list<S>(lex: &mut logos::Lexer<AfterFunctionName, S>) {
trace!("start_param_list EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::InParamList);
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
#[extras = "LexerState"]
crate enum InParamList {
#[error]
Error,
#[end]
END,
#[token = "$"]
#[callback = "start_param_name"]
Dollar,
#[regex = r"[^\S\r\n]"]
Whitespace,
}
impl InParamList {
fn to_token(&self) -> Option<Token> {
use InParamList::*;
let result = match self {
END => return None,
Dollar => Token::Dollar,
Whitespace => Token::Whitespace,
Error => unreachable!("Don't call to_token with the error variant"),
};
Some(result)
}
}
fn start_param_name<S>(lex: &mut logos::Lexer<InParamList, S>) {
trace!("start_param_name EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::VariableToken);
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
#[extras = "LexerState"]
crate enum TypeTokens {
#[error]
Error,
#[end]
END,
#[regex = "(any|int|decimal|bytes|text|boolean|date|object|list|block)"]
#[callback = "end_type_token"]
TypeName,
}
fn end_type_token<S>(lex: &mut logos::Lexer<TypeTokens, S>) {
trace!("end_type_token EXTRAS={:?}", lex.extras);
lex.extras.pop();
}
impl TypeTokens {
fn to_token(&self, text: &str) -> Option<Token> {
use TypeTokens::*;
let result = match self {
END => return None,
TypeName => match text {
"any" => Token::TyAny,
"int" => Token::TyInt,
"decimal" => Token::TyDecimal,
"bytes" => Token::TyBytes,
"text" => Token::TyText,
"boolean" => Token::TyBoolean,
"date" => Token::TyDate,
"object" => Token::TyObject,
"list" => Token::TyList,
other => unreachable!("Type name {:?} shouldn't be possible", other),
},
Error => unreachable!("Don't call to_token with the error variant"),
};
Some(result)
}
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
@ -138,9 +318,12 @@ crate enum AfterNum {
#[callback = "end_unit"]
Unit,
#[regex = r"\s"]
#[regex = r"[^\S\r\n]"]
#[callback = "end_number"]
Whitespace,
#[regex = r"(\r\n|\n)"]
Newline,
}
impl AfterNum {
@ -151,6 +334,7 @@ impl AfterNum {
END => return None,
Unit => Token::Unit,
Whitespace => Token::Whitespace,
Newline => Token::Newline,
Error => unreachable!("Don't call to_token with the error variant"),
};
@ -160,12 +344,12 @@ impl AfterNum {
fn end_unit<S>(lex: &mut logos::Lexer<AfterNum, S>) {
trace!("end_unit EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::Top;
lex.extras.pop();
}
fn end_number<S>(lex: &mut logos::Lexer<AfterNum, S>) {
trace!("end_unit EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::Top;
trace!("end_number EXTRAS={:?}", lex.extras);
lex.extras.pop();
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
@ -183,7 +367,7 @@ crate enum VariableToken {
}
impl VariableToken {
fn to_token(&self) -> Option<Token> {
fn to_token(&self, _text: &str) -> Option<Token> {
use VariableToken::*;
let result = match self {
@ -198,7 +382,7 @@ impl VariableToken {
fn end_variable<S>(lex: &mut logos::Lexer<VariableToken, S>) {
trace!("end_variable EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::AfterVariableToken;
lex.extras.replace(LexerStateName::AfterVariableToken);
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
@ -214,9 +398,20 @@ crate enum AfterVariableToken {
#[callback = "start_member"]
Dot,
#[regex = r"\s"]
#[token = ":"]
#[callback = "start_type"]
Colon,
#[regex = r"[^\S\r\n]"]
#[callback = "terminate_variable"]
Whitespace,
#[token = ")"]
#[callback = "end_param_list"]
EndParamList,
#[regex = r"(\r\n|\n)"]
Newline,
}
impl AfterVariableToken {
@ -226,7 +421,10 @@ impl AfterVariableToken {
let result = match self {
END => return None,
Dot => Token::PathDot,
Colon => Token::Colon,
Whitespace => Token::Whitespace,
Newline => Token::Newline,
EndParamList => Token::EndParamList,
Error => unreachable!("Don't call to_token with the error variant"),
};
@ -235,13 +433,26 @@ impl AfterVariableToken {
}
fn start_member<S>(lex: &mut logos::Lexer<AfterVariableToken, S>) {
trace!("start_variable EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::AfterMemberDot;
trace!("start_member EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::AfterMemberDot);
}
fn end_param_list<S>(lex: &mut logos::Lexer<AfterVariableToken, S>) {
trace!("end_param_list EXTRAS={:?}", lex.extras);
lex.extras.pop();
lex.extras.pop();
lex.extras.pop();
lex.extras.push(LexerStateName::AfterParamList);
}
fn start_type<S>(lex: &mut logos::Lexer<AfterVariableToken, S>) {
trace!("start_type EXTRAS={:?}", lex.extras);
lex.extras.push(LexerStateName::TypeTokens);
}
fn terminate_variable<S>(lex: &mut logos::Lexer<AfterVariableToken, S>) {
trace!("terminate_variable EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::Top;
lex.extras.pop();
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
@ -263,8 +474,11 @@ crate enum AfterMemberDot {
#[regex = r#""([^"]|\\")*""#]
DQString,
#[regex = r"\s"]
#[regex = r"[^\S\r\n]"]
Whitespace,
#[regex = r"(\r\n|\n)"]
Newline,
}
impl AfterMemberDot {
@ -278,6 +492,7 @@ impl AfterMemberDot {
DQString => Token::DQMember,
Whitespace => Token::Whitespace,
Newline => Token::Newline,
Error => unreachable!("Don't call to_token with the error variant"),
};
@ -287,13 +502,51 @@ impl AfterMemberDot {
fn finish_member<S>(lex: &mut logos::Lexer<AfterMemberDot, S>) {
trace!("finish_member EXTRAS={:?}", lex.extras);
lex.extras.current = LexerStateName::AfterVariableToken;
lex.extras.pop();
}
#[derive(Logos, Debug, Clone, Copy, Eq, PartialEq)]
#[extras = "LexerState"]
crate enum AfterParamList {
#[error]
Error,
#[token = "->"]
#[callback = "finish_arrow"]
Arrow,
#[end]
END,
}
impl AfterParamList {
fn to_token(&self, _text: &str) -> Option<Token> {
use AfterParamList::*;
let result = match self {
END => return None,
Arrow => Token::ReturnArrow,
Error => unreachable!("Don't call to_token with the error variant"),
};
Some(result)
}
}
fn finish_arrow<S>(lex: &mut logos::Lexer<AfterParamList, S>) {
trace!("finish_arrow EXTRAS={:?}", lex.extras);
lex.extras.replace(LexerStateName::TypeTokens);
}
#[derive(Debug, Clone, Copy)]
crate enum LexerStateName {
Top,
Var,
VariableToken,
AfterFunction,
AfterFunctionName,
TypeTokens,
InParamList,
AfterParamList,
AfterMemberDot,
AfterNum,
AfterVariableToken,
@ -305,9 +558,48 @@ impl Default for LexerStateName {
}
}
#[derive(Debug, Clone, Default)]
#[derive(Debug, Clone)]
crate struct LexerState {
current: LexerStateName,
stack: VecDeque<LexerStateName>,
}
impl Default for LexerState {
fn default() -> LexerState {
let mut stack = VecDeque::new();
stack.push_back(LexerStateName::Top);
LexerState { stack }
}
}
impl LexerState {
crate fn debug_states(&self) -> String {
let items: Vec<String> = self.stack.iter().map(|s| format!("{:?}", s)).collect();
let debug = itertools::join(items, " -> ");
format!("{}", debug)
}
crate fn push(&mut self, name: LexerStateName) {
self.stack.push_back(name);
trace!("push {:?} (to {})", name, self.debug_states());
}
crate fn replace(&mut self, name: LexerStateName) {
self.stack.pop_back();
self.stack.push_back(name);
trace!("replace with {:?} (to {})", name, self.debug_states());
}
crate fn pop(&mut self) {
self.stack.pop_back();
trace!("pop (to {})", self.debug_states());
}
crate fn current(&self) -> LexerStateName {
*self
.stack
.back()
.expect("There must always be at least one state in the lexer stack")
}
}
impl logos::Extras for LexerState {
@ -315,7 +607,7 @@ impl logos::Extras for LexerState {
fn on_whitespace(&mut self, _byte: u8) {}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Ord, PartialOrd)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Ord, PartialOrd, Hash)]
pub struct Span {
crate start: usize,
crate end: usize,
@ -374,7 +666,7 @@ impl language_reporting::ReportingSpan for Span {
}
}
#[derive(new, Debug, Clone, Eq, PartialEq, Ord, PartialOrd)]
#[derive(new, Debug, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct Spanned<T> {
crate span: Span,
crate item: T,
@ -389,8 +681,18 @@ impl<T> std::ops::Deref for Spanned<T> {
}
impl<T> Spanned<T> {
crate fn from_item(item: T, span: Span) -> Spanned<T> {
Spanned { span, item }
crate fn from_item(item: T, span: impl Into<Span>) -> Spanned<T> {
Spanned {
span: span.into(),
item,
}
}
crate fn map<U>(self, input: impl FnOnce(T) -> U) -> Spanned<U> {
let Spanned { span, item } = self;
let mapped = input(item);
Spanned { span, item: mapped }
}
}
@ -406,10 +708,6 @@ impl SpannedToken<'source> {
Spanned::from_item(self.slice.to_string(), self.span)
}
crate fn to_string(&self) -> String {
self.slice.to_string()
}
crate fn as_slice(&self) -> &str {
self.slice
}
@ -417,8 +715,14 @@ impl SpannedToken<'source> {
#[derive(Debug, Clone, Eq, PartialEq)]
pub enum Token {
KeywordFunction,
CommandName,
#[allow(unused)]
Comma,
Colon,
Variable,
PathDot,
ReturnArrow,
Member,
SQMember,
DQMember,
@ -433,6 +737,8 @@ pub enum Token {
CloseBrace,
OpenParen,
CloseParen,
StartParamList,
EndParamList,
OpGt,
OpLt,
OpGte,
@ -441,23 +747,26 @@ pub enum Token {
OpNeq,
Dash,
DashDash,
TyAny,
#[allow(unused)]
TyBlock,
TyBoolean,
TyBytes,
TyDate,
TyDecimal,
TyInt,
TyList,
TyObject,
TyText,
Whitespace,
Newline,
}
// #[derive(Debug, Clone, Eq, PartialEq)]
// crate enum Token<'source> {
// Top(SpannedToken<'source, TopToken>),
// Var(SpannedToken<'source, VariableToken>),
// Dot(SpannedToken<'source, &'source str>),
// Member(SpannedToken<'source, &'source str>),
// Whitespace(SpannedToken<'source, &'source str>),
// }
#[derive(Clone)]
crate struct Lexer<'source> {
lexer: logos::Lexer<TopToken, &'source str>,
first: bool,
whitespace: bool, // state: LexerState
whitespace: bool,
}
impl Lexer<'source> {
@ -465,41 +774,71 @@ impl Lexer<'source> {
Lexer {
first: true,
lexer: logos::Logos::lexer(source),
whitespace
// state: LexerState::default(),
whitespace,
}
}
fn lex_error(&self, range: &Range<usize>) -> ShellError {
use language_reporting::*;
let states = self.lexer.extras.debug_states();
ShellError::diagnostic(
Diagnostic::new(Severity::Error, "Lex error")
.with_label(Label::new_primary(Span::new(range)).with_message(states)),
)
}
}
impl Iterator for Lexer<'source> {
type Item = Result<(usize, SpannedToken<'source>, usize), ShellError>;
// type Item = Result<Token<'source>, ShellError>;
fn next(&mut self) -> Option<Self::Item> {
if self.first {
let result = if self.first {
self.first = false;
match self.lexer.token {
TopToken::Error => {
return Some(Err(lex_error(&self.lexer.range(), self.lexer.source)))
}
TopToken::Whitespace if !self.whitespace => return self.next(),
other => {
return spanned(other.to_token()?, self.lexer.slice(), &self.lexer.range())
}
TopToken::Error => Some(Err(self.lex_error(&self.lexer.range()))),
TopToken::Whitespace if !self.whitespace => self.next(),
other => spanned(
other.to_token(self.lexer.slice())?,
self.lexer.slice(),
&self.lexer.range(),
),
}
} else {
trace!("STATE={:?}", self.lexer.extras);
match self.lexer.extras.current {
match self.lexer.extras.current() {
LexerStateName::Top => {
let (lexer, range, slice, token) = advance::<TopToken>(self.lexer.clone());
self.lexer = lexer;
match token {
TopToken::Error => return Some(Err(lex_error(&range, self.lexer.source))),
TopToken::Whitespace if !self.whitespace => return self.next(),
other => return spanned(other.to_token()?, slice, &range),
TopToken::Error => Some(Err(self.lex_error(&range))),
TopToken::Whitespace if !self.whitespace => self.next(),
other => spanned(other.to_token(slice)?, slice, &range),
}
}
LexerStateName::AfterParamList => {
let (lexer, range, slice, token) =
advance::<AfterParamList>(self.lexer.clone());
self.lexer = lexer;
match token {
AfterParamList::Error => Some(Err(self.lex_error(&range))),
other => spanned(other.to_token(slice)?, slice, &range),
}
}
LexerStateName::TypeTokens => {
let (lexer, range, slice, token) = advance::<TypeTokens>(self.lexer.clone());
self.lexer = lexer;
match token {
TypeTokens::Error => Some(Err(self.lex_error(&range))),
other => spanned(other.to_token(slice)?, slice, &range),
}
}
@ -508,8 +847,42 @@ impl Iterator for Lexer<'source> {
self.lexer = lexer;
match token {
AfterNum::Error => return Some(Err(lex_error(&range, self.lexer.source))),
AfterNum::Error => Some(Err(self.lex_error(&range))),
AfterNum::Whitespace if !self.whitespace => self.next(),
other => spanned(other.to_token()?, slice, &range),
}
}
LexerStateName::AfterFunction => {
let (lexer, range, slice, token) = advance::<AfterFunction>(self.lexer.clone());
self.lexer = lexer;
match token {
AfterFunction::Error => Some(Err(self.lex_error(&range))),
AfterFunction::Whitespace if !self.whitespace => self.next(),
other => spanned(other.to_token()?, slice, &range),
}
}
LexerStateName::AfterFunctionName => {
let (lexer, range, slice, token) =
advance::<AfterFunctionName>(self.lexer.clone());
self.lexer = lexer;
match token {
AfterFunctionName::Error => Some(Err(self.lex_error(&range))),
AfterFunctionName::Whitespace if !self.whitespace => self.next(),
other => spanned(other.to_token()?, slice, &range),
}
}
LexerStateName::InParamList => {
let (lexer, range, slice, token) = advance::<InParamList>(self.lexer.clone());
self.lexer = lexer;
match token {
InParamList::Error => Some(Err(self.lex_error(&range))),
InParamList::Whitespace if !self.whitespace => self.next(),
other => return spanned(other.to_token()?, slice, &range),
}
}
@ -520,11 +893,9 @@ impl Iterator for Lexer<'source> {
self.lexer = lexer;
match token {
AfterMemberDot::Error => {
return Some(Err(lex_error(&range, self.lexer.source)))
}
AfterMemberDot::Error => return Some(Err(self.lex_error(&range))),
AfterMemberDot::Whitespace if !self.whitespace => self.next(),
other => return spanned(other.to_token()?, slice, &range),
other => spanned(other.to_token()?, slice, &range),
}
}
@ -534,37 +905,28 @@ impl Iterator for Lexer<'source> {
self.lexer = lexer;
match token {
AfterVariableToken::Error => {
return Some(Err(lex_error(&range, self.lexer.source)))
}
AfterVariableToken::Error => Some(Err(self.lex_error(&range))),
AfterVariableToken::Whitespace if !self.whitespace => self.next(),
other => return spanned(other.to_token()?, slice, &range),
other => spanned(other.to_token()?, slice, &range),
}
}
LexerStateName::Var => {
LexerStateName::VariableToken => {
let (lexer, range, slice, token) = advance::<VariableToken>(self.lexer.clone());
self.lexer = lexer;
match token {
VariableToken::Error => {
return Some(Err(lex_error(&range, self.lexer.source)))
}
other => return spanned(other.to_token()?, slice, &range),
}
}
}
VariableToken::Error => Some(Err(self.lex_error(&range))),
other => spanned(other.to_token(slice)?, slice, &range),
}
}
}
};
fn lex_error(range: &Range<usize>, _source: &str) -> ShellError {
use language_reporting::*;
trace!("emitting {:?}", result);
ShellError::diagnostic(
Diagnostic::new(Severity::Error, "Lex error")
.with_label(Label::new_primary(Span::new(range))),
)
result
}
}
fn spanned<'source>(
@ -600,6 +962,8 @@ mod tests {
use pretty_assertions::assert_eq;
fn assert_lex(source: &str, tokens: &[TestToken<'_>]) {
let _ = pretty_env_logger::try_init();
let lex = Lexer::new(source, false);
let mut current = 0;
@ -629,7 +993,26 @@ mod tests {
let actual_tokens: Result<Vec<SpannedToken>, _> =
lex.map(|result| result.map(|(_, i, _)| i)).collect();
let actual_tokens = actual_tokens.unwrap();
let actual_tokens = match actual_tokens {
Ok(v) => v,
Err(ShellError::Diagnostic(diag)) => {
use language_reporting::termcolor;
let writer = termcolor::StandardStream::stdout(termcolor::ColorChoice::Auto);
let files = crate::parser::span::Files::new(source.to_string());
language_reporting::emit(
&mut writer.lock(),
&files,
&diag.diagnostic,
&language_reporting::DefaultConfig,
)
.unwrap();
panic!("Test failed")
}
Err(err) => panic!("Something went wrong during lex: {:#?}", err),
};
assert_eq!(actual_tokens, expected_tokens);
}
@ -652,12 +1035,16 @@ mod tests {
impl TestToken<'source> {
fn to_token(&self, range: &std::ops::Range<usize>) -> SpannedToken<'source> {
match self.desc {
TokenDesc::Top(tok) => {
SpannedToken::new(Span::new(range), self.source, tok.to_token().unwrap())
}
TokenDesc::Var(tok) => {
SpannedToken::new(Span::new(range), self.source, tok.to_token().unwrap())
}
TokenDesc::Top(tok) => SpannedToken::new(
Span::new(range),
self.source,
tok.to_token(&self.source).unwrap(),
),
TokenDesc::Var(tok) => SpannedToken::new(
Span::new(range),
self.source,
tok.to_token(&self.source).unwrap(),
),
TokenDesc::Member => {
SpannedToken::new(Span::new(range), self.source, Token::Member)
}

149
src/parser/parser.lalrpop
View File

@ -1,7 +1,11 @@
#![allow(unused)]
use std::str::FromStr;
use crate::parser::ast::*;
use crate::parser::ast::expression::*;
use crate::parser::ast::module::*;
use crate::parser::ast::parser_utils::*;
use crate::parser::ast::{ExpressionBuilder, ModuleBuilder};
use crate::prelude::*;
use crate::parser::lexer::{SpannedToken, Spanned, Span, Token};
use byte_unit::Byte;
@ -26,7 +30,73 @@ use byte_unit::Byte;
grammar<'input>;
pub Pipeline: Pipeline = {
// === MODULES === //
pub Module: Module = {
<l: @L> <first:Item> <items: ( ("newline")+ <Item> )*> <r: @R> => ModuleBuilder::spanned_items(concat(first, items), l, r),
}
Item: Item = {
<l: @L> <pipeline:Pipeline> <r: @R> => Spanned::from_item(RawItem::Expression(pipeline), Span::from((l, r))),
<l: @L> <function:Function> <r: @R> => Spanned::from_item(RawItem::Function(function), Span::from((l, r))),
}
// === FUNCTIONS === //
Function: Function = {
<l: @L> "function" <bare: CommandName> "start-params"
<params: ParameterList>
"end-params" <ret: ("->" <Type>)?> <block: Block> <r: @R> => {
ModuleBuilder::spanned_function((bare, params, ret, block), l, r)
}
}
ParameterList: Vec<FormalParameter> = {
<params: Comma<FormalParameter>> => params
}
FormalParameter: FormalParameter = {
<l: @L> <name: ParameterName> ":" <ty: Type> <r: @R> => ModuleBuilder::spanned_formal_parameter((name, ty), l, r),
}
ParameterName: ParameterIdentifier = {
<l: @L> "-" <b: SpannedBare> <r: @R> => ParameterIdentifier::shorthand(b.map(|b| b.to_string()), (l, r)),
<l: @L> "--" <b: SpannedBare> <r: @R> => ParameterIdentifier::flag(b.map(|b| b.to_string()), (l, r)),
<l: @L> <var: ParameterVariable> <r: @R> => ParameterIdentifier::var(var, (l, r)),
}
ParameterVariable: Spanned<Variable> = {
<l: @L> "$" <v: "variable"> <r: @R> => Spanned::from_item(ast::Variable::from_string(v.as_slice()), (l, r)),
}
// === TYPES === //
Type: Spanned<Type> = {
<l: @L> <ty: RawType> <r: @R> => Spanned::from_item(ty, (l, r)),
}
RawType: Type = {
"any" => Type::Any,
"int" => Type::Int,
"decimal" => Type::Decimal,
"bytes" => Type::Bytes,
"text" => Type::Text,
"boolean" => Type::Boolean,
"date" => Type::Date,
// TODO: generics
"object" => Type::Object,
"list" => Type::List,
"block" => Type::Block,
}
// === EXPRESSIONS === //
pub ReplLine: Pipeline = {
<Pipeline> ("newline")*
}
Pipeline: Pipeline = {
<l: @L> <first:PipelineElement> <rest: ( "|" <PipelineElement> )*> <r: @R> => Pipeline::from_parts(first, rest, l, r),
}
@ -57,7 +127,18 @@ Binary: Expression = {
// In a block, a single bare word is interpreted as a call:
//
// foreach { ls }
Block: Expression = {
Block: Spanned<Block> = {
<l: @L> "{" <expr: SingleExpression> "}" <r: @R> => ExpressionBuilder::spanned_raw_block(expr, l, r),
<l: @L> "{" <bare: BareExpression> "}" <r: @R> => {
let call = ExpressionBuilder::spanned_call(bare.clone(), bare.span.start, bare.span.end);
ExpressionBuilder::spanned_raw_block(call, l, r)
}
}
// In a block, a single bare word is interpreted as a call:
//
// foreach { ls }
BlockExpression: Expression = {
<l: @L> "{" <expr: SingleExpression> "}" <r: @R> => ExpressionBuilder::spanned_block(expr, l, r),
<l: @L> "{" <bare: BareExpression> "}" <r: @R> => {
let call = ExpressionBuilder::spanned_call(bare.clone(), bare.span.start, bare.span.end);
@ -69,7 +150,7 @@ Block: Expression = {
// even as the first part of a call.
MemberHeadExpression: Expression = {
<LeafExpression> => <>,
<Block> => <>,
<BlockExpression> => <>,
<l: @L> "(" <expr: Call> ")" <r: @R> => ExpressionBuilder::spanned_call(expr, l, r),
<l: @L> "(" <expr: BareExpression> ")" <r: @R> => ExpressionBuilder::spanned_call((expr, vec![]), l, r),
<l: @L> "(" <expr:Binary> ")" <r: @R> => ExpressionBuilder::spanned_parens(expr, l, r),
@ -77,7 +158,7 @@ MemberHeadExpression: Expression = {
Expression: Expression = {
<MemberHeadExpression> => <>,
<l: @L> <expr:MemberHeadExpression> <rest: ( "???." <"member"> )+> <r: @R> => ExpressionBuilder::spanned_path((expr, rest.iter().map(|i| i.to_spanned_string()).collect()), l, r),
<l: @L> <expr:MemberHeadExpression> <rest: ( "???." <Member> )+> <r: @R> => ExpressionBuilder::spanned_path((expr, rest), l, r),
}
// An `ArgumentExpression` is an expression that appears in an argument list. It includes all of `Expression`, and
@ -117,6 +198,14 @@ SpannedOperator: Spanned<Operator> = {
<l: @L> <op: Operator> <r: @R> => Spanned::from_item(op, Span::from((l, r)))
}
Newlines: () = {
("newline")+
}
OptionalNewlines: () = {
("newline")*
}
// === LOGICAL TOKENS === //
// A logical token may be composed of more than one raw token, but the tokens must be emitted
@ -129,12 +218,18 @@ Bare: Bare = {
// A member is a special token that represents bare words or string literals immediate
// following a dot.
Member: String = {
<"member"> => <>.to_string(),
<"dqmember"> => <>.to_string(),
<"sqmember"> => <>.to_string(),
Member: Spanned<String> = {
<"member"> => <>.to_spanned_string(),
<"dqmember"> => <>.to_spanned_string(),
<"sqmember"> => <>.to_spanned_string(),
<"function"> => <>.to_spanned_string(),
}
CommandName: Spanned<Bare> = {
<l: @L> <name: "command-name"> <r: @R> => Spanned::from_item(Bare::from_string(name.as_slice()), (l, r)),
}
Operator: Operator = {
"==" => Operator::Equal,
"!=" => Operator::NotEqual,
@ -166,11 +261,42 @@ Var: Expression = {
<l: @L> "$" <v: "variable"> <r: @R> => ExpressionBuilder::spanned_var(v.as_slice(), l, r),
}
SpannedBare: Spanned<Bare> = {
<l: @L> <bare: Bare> <r: @R> => Spanned::from_item(bare, (l, r)),
}
// === MACROS === //
Comma<T>: Vec<T> = { // (1)
<v:(<T> OptionalNewlines "," OptionalNewlines)*> <e:T?> => match e { // (2)
None => v,
Some(e) => {
let mut v = v;
v.push(e);
v
}
}
};
extern {
type Location = usize;
type Error = ShellError;
enum SpannedToken<'input> {
"any" => SpannedToken { token: Token::TyAny, .. },
"int" => SpannedToken { token: Token::TyInt, .. },
"decimal" => SpannedToken { token: Token::TyDecimal, .. },
"bytes" => SpannedToken { token: Token::TyBytes, .. },
"text" => SpannedToken { token: Token::TyText, .. },
"boolean" => SpannedToken { token: Token::TyBoolean, .. },
"date" => SpannedToken { token: Token::TyDate, .. },
"object" => SpannedToken { token: Token::TyObject, .. },
"list" => SpannedToken { token: Token::TyList, .. },
"block" => SpannedToken { token: Token::TyBlock, .. },
"->" => SpannedToken { token: Token::ReturnArrow, .. },
"," => SpannedToken { token: Token::Comma, .. },
":" => SpannedToken { token: Token::Colon, .. },
"|" => SpannedToken { token: Token::Pipe, .. },
"(" => SpannedToken { token: Token::OpenParen, .. },
")" => SpannedToken { token: Token::CloseParen, .. },
@ -186,6 +312,9 @@ extern {
"--" => SpannedToken { token: Token::DashDash, .. },
"$" => SpannedToken { token: Token::Dollar, .. },
"???." => SpannedToken { token: Token::PathDot, .. },
"command-name" => SpannedToken { token: Token::CommandName, .. },
"start-params" => SpannedToken { token: Token::StartParamList, .. },
"end-params" => SpannedToken { token: Token::EndParamList, .. },
"num" => SpannedToken { token: Token::Num, .. },
"member" => SpannedToken { token: Token::Member, .. },
"sqmember" => SpannedToken { token: Token::SQMember, .. },
@ -195,5 +324,7 @@ extern {
"dqstring" => SpannedToken { token: Token::DQString, .. },
"sqstring" => SpannedToken { token: Token::SQString, .. },
"unit" => SpannedToken { token: Token::Unit, .. },
"newline" => SpannedToken { token: Token::Newline, .. },
"function" => SpannedToken { token: Token::KeywordFunction, .. },
}
}

15435
src/parser/parser.rs
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2
tests/json_roundtrip.out
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@ -1 +1 @@
S
"S"