sugar: add var x syntax to =>
#1492
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Summary ======= Allow prefixing parameter names with `var`, to designate the parameter as being a `var` parameter. Details ======= Type parameters cannot be inferred as `var`, and therefore it's effectively not possible to use the `=>` macro for creating anonymous procedures where the procedures needs `var` parameters. The `x: T` syntax does exist, but it applies to all preceding parameter, limiting its usefulness. To address the aforementioned shortcoming, the `var x` syntax is now supported (example: `(x, var y) => x`), assigning `var auto` as the respective parameter's type. Due a NimSkull syntax/parser limitation, `var x` cannot be used as the first parameter.
saem
approved these changes
Feb 18, 2025
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/merge |
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Merge requested by: @saem Contents after the first section break of the PR description has been removed and preserved below: |
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Summary
Allow prefixing parameter names with
var, to designate the parameteras being a
varparameter.Details
Type parameters cannot be inferred as
var, and therefore it'seffectively not possible to use the
=>macro for creating anonymousprocedures where the procedures needs
varparameters. Thex: Tsyntax does exist, but it applies to all preceding parameter, limiting
its usefulness.
To address the aforementioned shortcoming, the
var xsyntax is nowsupported (example:
(x, var y) => x), assigningvar autoas therespective parameter's type. Due a NimSkull syntax/parser limitation,
var xcannot be used as the first parameter.