Split deferred node traversal out from check.cpp #4559
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zygoloid
approved these changes
Nov 20, 2024
| Context& context, Parse::DeferredDefinitionIndex index, | ||
| Parse::FunctionDefinitionStartId node_id) -> void { | ||
| worklist_.push_back(CheckSkippedDefinition{ | ||
| index, HandleFunctionDefinitionSuspend(context, node_id)}); |
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This call to HandleFunctionDefinitionSuspend is really breaking the abstraction that these two factored out classes are trying to provide -- this isn't a reusable traversal because it also has this weird side-effect of calling a Handle function.
Please can you add a TODO to move this call out of the worklist?
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| // When we reach the start of a deferred definition scope, add a task to the | ||
| // worklist to check future skipped definitions in the new context. | ||
| if (IsStartOfDeferredDefinitionScope(parse_kind)) { | ||
| worklist_.PushEnterDeferredDefinitionScope(context_); | ||
| } | ||
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| // When we reach the end of a deferred definition scope, add a task to the | ||
| // worklist to leave the scope. If this is not a nested scope, start | ||
| // checking the deferred definitions now. | ||
| if (IsEndOfDeferredDefinitionScope(parse_kind)) { | ||
| chunks_.back().checking_deferred_definitions = | ||
| worklist_.SuspendFinishedScopeAndPush(context_); | ||
| } |
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These calls make me sad for the same reason as the one in the worklist. Can you add a TODO for these also?
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I'm looking at adding more significant logic to checking, particularly for interop. But check.cpp is getting large, and I think just adding more logic will make it harder to reason about, so I'm looking at splitting it up. This moves out NodeIdTraversal and DeferredDefinitionWorklist because they're already independent from the other code, and are reasonably sized to have their own files.