Assume :foldable in isuppercase/islowercase for Char
#54346
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topolarity
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May 6, 2024
aviatesk
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May 7, 2024
Annotate `@ccall` macro Co-authored-by: Shuhei Kadowaki <40514306+aviatesk@users.noreply.github.com>
Annotate `@ccall` macro in `isuppercase` Co-authored-by: Shuhei Kadowaki <40514306+aviatesk@users.noreply.github.com>
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Should similar changes me made elsewhere as well, e.g. in |
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If you're motivated, that would be helpful. Having said that I don't believe it's necessary for merging this PR. |
aviatesk
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May 8, 2024
Following on from #54346, this marks the `ccall` in `category_code` as foldable. This lets us compute the results of several functions at compile time, such as: ```julia julia> @code_typed (() -> isletter('C'))() CodeInfo( 1 ─ return true ) => Bool julia> @code_typed (() -> isnumeric('C'))() CodeInfo( 1 ─ return false ) => Bool julia> @code_typed (() -> ispunct('C'))() CodeInfo( 1 ─ return false ) => Bool ```
xlxs4
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May 9, 2024
Following on from JuliaLang#54346, this marks the `ccall` in `category_code` as foldable. This lets us compute the results of several functions at compile time, such as: ```julia julia> @code_typed (() -> isletter('C'))() CodeInfo( 1 ─ return true ) => Bool julia> @code_typed (() -> isnumeric('C'))() CodeInfo( 1 ─ return false ) => Bool julia> @code_typed (() -> ispunct('C'))() CodeInfo( 1 ─ return false ) => Bool ```
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With this,
isuppercase/islowercaseare evaluated at compile-time forChararguments:This would be useful in #54303, where the case of the character indicates which triangular half of a matrix is filled, and may be constant-propagated downstream.