Basic traverse and linter rules #78
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## master #78 +/- ##
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- Coverage 90.55% 87.34% -3.22%
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Files 31 32 +1
Lines 1440 1501 +61
Branches 227 241 +14
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+ Hits 1304 1311 +7
- Misses 118 172 +54
Partials 18 18
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I find confusing a little bit what we consider a binding. Firstly it seemed it was only local variables + function arguments. But then module did extract definitions.
A couple of alternative ideas to make it more clear:
- Remove syntaxBindings (do it inside module directly).
- Define 2 kind of bindings, lexical-global.
| return expressionBindings(s); | ||
| } else { | ||
| switch (s.node.tag) { | ||
| case "definition": |
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Should definition also include a binding?
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These are global bindings, so handled by the moduleBindings. This function returns the bindings that only exist within the node.
| switch (s.node.tag) { | ||
| case "definition": | ||
| case "export": | ||
| case "type-alias": |
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I get the rule is unused-variables, but maybe it would make sense to extend it to unused types as well?
| } | ||
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| function moduleBindings<I>(m: Module<I>): Identifier[] { | ||
| return moduleChildren(m) |
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I would have expected this in syntaxBindings actually.
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It would be nice to find a more functional-friendly way of writing rules. The visitor patterns rely too much on the execution order and keeping state. It's quite imperative. It would be interesting if we can compare with other implementations at some point. But this looks good, with a bit of clean up and tests we can merge it. It should be easy to maintain. |
This needs some improvement around the
Module | Syntaxparts still, as a lot of functions could be merged.