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using put_new instead of assign to prevent constant re-render

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Conor Sinclair 2023-06-03 21:21:01 +01:00 committed by Wout De Puysseleir
parent cb57b77303
commit 97edfc8be5
1 changed files with 10 additions and 9 deletions
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19
lib/components.ex
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@ -33,22 +33,23 @@ defmodule LiveSvelte.Components do
assigns
|> Map.filter(fn
{:svelte_opts, _v} -> false
{k, _v} -> k not in [:__changed__]
{k, _v} -> k not in [:__changed__, :__given__, :ssr]
_ -> false
end)
var!(assigns) =
assign(assigns,
__component_name: unquote(name),
props: props || %{}
)
assigns
|> Map.put(:__component_name, unquote(name))
|> Map.put_new(:ssr, true)
|> Map.put_new(:class, nil)
|> assign(:props, props)
~H"""
<LiveSvelte.svelte
name={Map.get(var!(assigns), :__component_name)}
class={Map.get(var!(assigns), :class)}
ssr={LiveSvelte.get_ssr(var!(assigns))}
props={Map.get(var!(assigns), :props, %{})}
name={@__component_name}
class={@class}
ssr={@ssr}
props={@props}
/>
"""
end