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Add a Luau declaration-pattern table to the cs structural ranker.
Upstream cs (v3.1.0) ships a "Lua" entry in languageDeclarationPatterns but no
"Luau" entry, even though its bundled scc database recognises ".luau" files as a
distinct "Luau" language. Without a matching declaration table, every match in a
.luau file is classified as a plain "usage": --only-declarations returns nothing
and the structural ranker gives definitions no boost. This is the dominant file
type in Roblox codebases, so we add a Luau entry that mirrors Lua's function
prefixes and additionally covers Luau's `type` / `export type` declarations.
This is a purely additive change (one new map entry); it does not alter any
existing language's behaviour and passes cs's own pkg/ranker test suite. Applied
during the Docker build via `git apply` against the pinned v3.1.0 checkout
(see Dockerfile / Dockerfile.dev). Candidate for upstreaming to boyter/cs.
diff --git a/pkg/ranker/declarations.go b/pkg/ranker/declarations.go
index 42cd934..36f9f68 100644
--- a/pkg/ranker/declarations.go
+++ b/pkg/ranker/declarations.go
@@ -187,6 +187,12 @@ var languageDeclarationPatterns = map[string][]DeclarationPattern{
{Prefix: []byte("function ")},
{Prefix: []byte("local function ")},
},
+ "Luau": {
+ {Prefix: []byte("function ")},
+ {Prefix: []byte("local function ")},
+ {Prefix: []byte("type ")},
+ {Prefix: []byte("export type ")},
+ },
"Scala": {
{Prefix: []byte("def ")},
{Prefix: []byte("val ")},
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