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util/bitcompat.lua

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util/bitcompat.lua @ 12748:7b9de8109a90

util.roles: Add a :policies() method to iterate through available policies We don't expose the policies directly, to force people to go through :may(). However, there are times when we really just need to know what policies a role has inside it (e.g. for reporting or debugging purposes).
author Matthew Wild <mwild1@gmail.com>
date Fri, 07 Oct 2022 17:01:35 +0100
parent 12573:0f4feaf9ca64
child 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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10241
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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1 -- Compatibility layer for bitwise operations
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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2
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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3 -- First try the bit32 lib
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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4 -- Lua 5.3 has it with compat enabled
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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5 -- Lua 5.2 has it by default
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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6 if _G.bit32 then
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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7 return _G.bit32;
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Kim Alvefur <zash@zash.se>
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8 end
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Kim Alvefur <zash@zash.se>
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9
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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10 do
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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11 -- Lua 5.3 and 5.4 would be able to use native infix operators
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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12 local ok, bitop = pcall(require, "util.bit53")
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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13 if ok then
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Kim Alvefur <zash@zash.se>
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14 return bitop;
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15 end
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Kim Alvefur <zash@zash.se>
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16 end
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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17
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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18 error "No bit module found. See https://prosody.im/doc/depends#bitop";