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Add __ipairs metamethod (again) for Lua 5.2 only

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Alex Orlenko 2021-06-03 18:43:29 +01:00
parent a944f4ad6f
commit 64faebf407
1 changed files with 13 additions and 0 deletions
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13
src/userdata.rs
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@ -104,6 +104,15 @@ pub enum MetaMethod {
/// Requires `feature = "lua54/lua53/lua52"`
#[cfg(any(feature = "lua54", feature = "lua53", feature = "lua52", doc))]
Pairs,
/// The `__ipairs` metamethod.
///
/// This is not an operator, but it will be called by the built-in [`ipairs`] function.
///
/// Requires `feature = "lua52"`
///
/// [`ipairs`]: https://www.lua.org/manual/5.2/manual.html#pdf-ipairs
#[cfg(any(feature = "lua52", doc))]
IPairs,
/// The `__close` metamethod.
///
/// Executed when a variable, that marked as to-be-closed, goes out of scope.
@ -181,6 +190,8 @@ impl MetaMethod {
#[cfg(any(feature = "lua54", feature = "lua53", feature = "lua52"))]
MetaMethod::Pairs => "__pairs",
#[cfg(feature = "lua52")]
MetaMethod::IPairs => "__ipairs",
#[cfg(feature = "lua54")]
MetaMethod::Close => "__close",
@ -241,6 +252,8 @@ impl From<StdString> for MetaMethod {
#[cfg(any(feature = "lua54", feature = "lua53", feature = "lua52"))]
"__pairs" => MetaMethod::Pairs,
#[cfg(feature = "lua52")]
"__ipairs" => MetaMethod::IPairs,
#[cfg(feature = "lua54")]
"__close" => MetaMethod::Close,