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Add float.fromhex
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Jeong YunWon committed
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@@ -323,6 +323,31 @@ dependencies = [
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"unicode-segmentation 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "hexf"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"hexf-impl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"hexf-parse 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"proc-macro-hack 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "hexf-impl"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"hexf-parse 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"proc-macro-hack 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "hexf-parse"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "humantime"
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version = "1.2.0"
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@@ -553,6 +578,19 @@ name = "precomputed-hash"
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version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "proc-macro-hack"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"proc-macro-hack-impl 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "proc-macro-hack-impl"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "proc-macro2"
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version = "0.4.27"
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@@ -575,6 +613,11 @@ name = "quick-error"
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version = "1.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "quote"
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version = "0.3.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "quote"
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version = "0.6.11"
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@@ -829,6 +872,7 @@ dependencies = [
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"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"caseless 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"hexf 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"lexical 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1014,6 +1058,16 @@ name = "strsim"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "syn"
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version = "0.11.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "syn"
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version = "0.15.29"
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@@ -1024,6 +1078,14 @@ dependencies = [
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"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "synom"
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version = "0.11.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "synstructure"
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version = "0.10.1"
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@@ -1147,6 +1209,11 @@ name = "unicode-width"
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version = "0.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "unicode-xid"
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version = "0.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "unicode-xid"
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version = "0.1.0"
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@@ -1372,6 +1439,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)" = "49e7653e374fe0d0c12de4250f0bdb60680b8c80eed558c5c7538eec9c89e21b"
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"checksum generic-array 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3c0f28c2f5bfb5960175af447a2da7c18900693738343dc896ffbcabd9839592"
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"checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
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"checksum hexf 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e54653cc32d838771a36532647afad59c4bf7155745eeeec406f71fd5d7e7538"
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"checksum hexf-impl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "22eadcfadba76a730b2764eaa577d045f35e0ef5174b9c5b46adf1ee42b85e12"
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"checksum hexf-parse 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "79296f72d53a89096cbc9a88c9547ee8dfe793388674620e2207593d370550ac"
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"checksum humantime 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3ca7e5f2e110db35f93b837c81797f3714500b81d517bf20c431b16d3ca4f114"
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"checksum itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5b8467d9c1cebe26feb08c640139247fac215782d35371ade9a2136ed6085358"
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"checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
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@@ -1401,9 +1471,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum phf_generator 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "09364cc93c159b8b06b1f4dd8a4398984503483891b0c26b867cf431fb132662"
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"checksum phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "234f71a15de2288bcb7e3b6515828d22af7ec8598ee6d24c3b526fa0a80b67a0"
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"checksum precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
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"checksum proc-macro-hack 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b773f824ff2a495833f85fcdddcf85e096949971decada2e93249fa2c6c3d32f"
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"checksum proc-macro-hack-impl 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0f674ccc446da486175527473ec8aa064f980b0966bbf767ee743a5dff6244a7"
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"checksum proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)" = "4d317f9caece796be1980837fd5cb3dfec5613ebdb04ad0956deea83ce168915"
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"checksum python3-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "61e4aac43f833fd637e429506cb2ac9d7df672c4b68f2eaaa163649b7fdc0444"
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"checksum quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
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"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
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"checksum quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)" = "cdd8e04bd9c52e0342b406469d494fcb033be4bdbe5c606016defbb1681411e1"
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"checksum rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c618c47cd3ebd209790115ab837de41425723956ad3ce2e6a7f09890947cacb9"
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"checksum rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6d71dacdc3c88c1fde3885a3be3fbab9f35724e6ce99467f7d9c5026132184ca"
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@@ -1446,7 +1519,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum string_cache_codegen 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1eea1eee654ef80933142157fdad9dd8bc43cf7c74e999e369263496f04ff4da"
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"checksum string_cache_shared 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b1884d1bc09741d466d9b14e6d37ac89d6909cbcac41dd9ae982d4d063bbedfc"
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"checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
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"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
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"checksum syn 0.15.29 (registry+https://github.com/rust-lang/crates.io-index)" = "1825685f977249735d510a242a6727b46efe914bb67e38d30c071b1b72b1d5c2"
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"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
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"checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
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"checksum term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "fa63644f74ce96fbeb9b794f66aff2a52d601cbd5e80f4b97123e3899f4570f1"
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"checksum termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4096add70612622289f2fdcdbd5086dc81c1e2675e6ae58d6c4f62a16c6d7f2f"
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@@ -1464,6 +1539,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "141339a08b982d942be2ca06ff8b076563cbe223d1befd5450716790d44e2426"
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"checksum unicode-segmentation 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "aa6024fc12ddfd1c6dbc14a80fa2324d4568849869b779f6bd37e5e4c03344d1"
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"checksum unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "882386231c45df4700b275c7ff55b6f3698780a650026380e72dabe76fa46526"
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"checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
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"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
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"checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
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"checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
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@@ -196,3 +196,9 @@ assert str(1.123456789) == '1.123456789'
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a = .5
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assert a == 0.5
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assert float.fromhex('0x0.0p+0') == 0.0
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assert float.fromhex('-0x0.0p+0') == -0.0
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assert float.fromhex('0x1.000000p+0') == 1.0
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assert float.fromhex('-0x1.800000p+0') == -1.5
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assert float.fromhex('inf') == float('inf')
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assert math.isnan(float.fromhex('nan'))
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@@ -28,6 +28,7 @@ unicode-xid = "0.1.0"
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lazy_static = "^1.0.1"
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lexical = "2.0.0"
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itertools = "^0.8.0"
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hexf = "0.1.0"
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# TODO: release and publish to crates.io
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[dependencies.unicode-casing]
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@@ -3,6 +3,7 @@ use super::objint;
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use super::objstr;
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use super::objtype;
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use crate::function::OptionalArg;
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use crate::obj::objstr::PyStringRef;
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use crate::obj::objtype::PyClassRef;
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use crate::pyhash;
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use crate::pyobject::{
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@@ -10,6 +11,7 @@ use crate::pyobject::{
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TypeProtocol,
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};
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use crate::vm::VirtualMachine;
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use hexf;
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use num_bigint::{BigInt, ToBigInt};
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use num_rational::Ratio;
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use num_traits::{ToPrimitive, Zero};
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@@ -473,6 +475,16 @@ impl PyFloat {
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let denom = vm.ctx.new_int(ratio.denom().clone());
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Ok(vm.ctx.new_tuple(vec![numer, denom]))
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}
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#[pymethod]
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fn fromhex(repr: PyStringRef, vm: &VirtualMachine) -> PyResult<f64> {
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hexf::parse_hexf64(&repr.value, false).or_else(|_| match repr.value.as_ref() {
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"nan" => Ok(std::f64::NAN),
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"inf" => Ok(std::f64::INFINITY),
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"-inf" => Ok(std::f64::NEG_INFINITY),
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_ => Err(vm.new_value_error("invalid hexadecimal floating-point string".to_string())),
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})
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}
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}
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pub type PyFloatRef = PyRef<PyFloat>;
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