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Improve error messages for derived sources

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There seemed to be confusion over reactive-scoping (likely due to
incomplete docs), so I've added more explicit error messages when
deriving in non-reactive scopes to warn the user to use `root()` or
`mount()`.
This commit is contained in:
aaron 2023-09-18 09:40:54 +01:00
parent d13f66a1e1
commit c4a0180a2f
9 changed files with 31 additions and 42 deletions
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8
src/derive.luau
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@ -1,18 +1,14 @@
if not game then script = require "test/relative-string" end
local throw = require(script.Parent.throw)
local graph = require(script.Parent.graph)
local create_node = graph.create_node
local set_owner = graph.set_owner
local track = graph.track
local get_scope = graph.get_scope
local get_owning_scope = graph.get_owning_scope
local evaluate_node = graph.evaluate_node
local function derive<T>(source: () -> T): () -> T
local owner = get_scope()
if not owner then
throw("cannot derive in non-reactive scope")
end; assert(owner)
local owner = get_owning_scope()
local node = create_node(false :: any, source)