Dart VM GC performance for functions with named parameters

[Bibaswan Bhawal]

When calling a function with named parameters does Dart create a new map which needs to be GCd after? This could be a potential performance problem and it might be better use positional  parameters versus named parameters

[Martin Kustermann]

> When calling a function with named parameters does Dart create a new map which needs to be GCd after? This

No it doesn't. The caller will pass a hidden argument to the callee that describes the number of positional arguments and the names of named arguments it passes (this information is constant per-call site and is therefore a simple load instruction). The callee will then use this information to detect whether a value was passed or the default value should be used.

On Wed, Apr 12, 2023 at 3:42 PM Bibaswan Bhawal <bibasw...@gmail.com> wrote:

When calling a function with named parameters does Dart create a new map which needs to be GCd after? This could be a potential performance problem and it might be better use positional  parameters versus named parameters

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