mirror of
https://github.com/github/semantic.git
synced 2024-12-23 14:54:16 +03:00
41 lines
1.4 KiB
Haskell
41 lines
1.4 KiB
Haskell
{-# LANGUAGE TypeOperators #-}
|
|
|
|
module Matching.Go.Spec (spec) where
|
|
|
|
import Control.Abstract.Matching
|
|
import Data.Abstract.Module
|
|
import Data.List
|
|
import Data.Sum
|
|
import qualified Data.Syntax.Declaration as Decl
|
|
import qualified Data.Syntax.Literal as Lit
|
|
import qualified Data.Syntax.Statement as Stmt
|
|
import SpecHelpers
|
|
|
|
-- This gets the ByteString contents of all integers
|
|
integerMatcher :: (Lit.Integer :< fs) => Matcher (Term (Sum fs) ann) ByteString
|
|
integerMatcher = match Lit.integerContent target
|
|
|
|
-- This matches all for-loops with its index variable new variable bound to 0,
|
|
-- e.g. `for i := 0; i < 10; i++`
|
|
loopMatcher :: ( Stmt.For :< fs
|
|
, Stmt.Assignment :< fs
|
|
, Lit.Integer :< fs)
|
|
=> TermMatcher fs ann
|
|
loopMatcher = target <* go where
|
|
go = match Stmt.forBefore $
|
|
match Stmt.assignmentValue $
|
|
match Lit.integerContent $
|
|
ensure (== "0")
|
|
|
|
spec :: Spec
|
|
spec = describe "matching/go" $ do
|
|
it "extracts integers" $ do
|
|
parsed <- parseFile goParser "test/fixtures/go/matching/integers.go"
|
|
let matched = runMatcher integerMatcher parsed
|
|
sort matched `shouldBe` ["1", "2", "3"]
|
|
|
|
it "counts for loops" $ do
|
|
parsed <- parseFile goParser "test/fixtures/go/matching/for.go"
|
|
let matched = runMatcher @[] loopMatcher parsed
|
|
length matched `shouldBe` 2
|