Brandon Chinn pushed to branch wip/interpolated-strings at Glasgow Haskell Compiler / GHC

Commits:

• 99f32238
  by Brandon Chinn at 2026-04-05T13:40:51-07:00

  [refactor] Always use processCharsSingle to get StringLexError
  

• 433071da
  by Brandon Chinn at 2026-04-05T13:41:14-07:00

  [refactor] Add pprHsStringMulti, unify string ppr functions
  

• 72fd10b5
  by Brandon Chinn at 2026-04-05T14:31:12-07:00

  [refactor] Break out GHC.Data.StringMeta
  

• 72c318d9
  by Brandon Chinn at 2026-04-08T22:04:37-07:00

  Implement interpolated strings
  

70 changed files:

• compiler/GHC/Builtin/Names.hs
• compiler/GHC/Builtin/Names/TH.hs
• compiler/GHC/Builtin/Types.hs
• + compiler/GHC/Data/StringMeta.hs
• compiler/GHC/Driver/Flags.hs
• compiler/GHC/Hs/Expr.hs
• compiler/GHC/Hs/Instances.hs
• compiler/GHC/Hs/Lit.hs
• compiler/GHC/Hs/Syn/Type.hs
• compiler/GHC/HsToCore/Expr.hs
• compiler/GHC/HsToCore/Quote.hs
• compiler/GHC/HsToCore/Ticks.hs
• compiler/GHC/Iface/Ext/Ast.hs
• compiler/GHC/Parser.y
• compiler/GHC/Parser/Lexer.x
• compiler/GHC/Parser/Lexer/String.x
• compiler/GHC/Parser/String.hs
• compiler/GHC/Rename/Expr.hs
• compiler/GHC/Rename/Pat.hs
• + compiler/GHC/Rename/String.hs
• compiler/GHC/Tc/Gen/Expr.hs
• compiler/GHC/Tc/Types/Origin.hs
• compiler/GHC/Tc/Zonk/Type.hs
• compiler/GHC/ThToHs.hs
• compiler/GHC/Utils/Outputable.hs
• compiler/Language/Haskell/Syntax/Expr.hs
• compiler/Language/Haskell/Syntax/Extension.hs
• compiler/ghc.cabal.in
• libraries/ghc-boot-th/GHC/Boot/TH/Ppr.hs
• libraries/ghc-experimental/ghc-experimental.cabal.in
• + libraries/ghc-experimental/src/Data/String/Interpolate/Experimental.hs
• libraries/ghc-internal/ghc-internal.cabal.in
• libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
• + libraries/ghc-internal/src/GHC/Internal/Data/String/Interpolate.hs
• libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs
• libraries/ghc-internal/src/GHC/Internal/TH/Lib.hs
• libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs
• libraries/ghc-internal/src/GHC/Internal/TH/Syntax.hs
• libraries/ghci/GHCi/TH/Binary.hs
• libraries/template-haskell/Language/Haskell/TH/Lib.hs
• testsuite/tests/driver/T4437.hs
• + testsuite/tests/parser/should_fail/MultilineStringsEscapeOverflow.hs
• + testsuite/tests/parser/should_fail/MultilineStringsEscapeOverflow.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationEscapeOverflow.hs
• + testsuite/tests/parser/should_fail/StringInterpolationEscapeOverflow.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationExtraOpen.hs
• + testsuite/tests/parser/should_fail/StringInterpolationExtraOpen.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationInPat.hs
• + testsuite/tests/parser/should_fail/StringInterpolationInPat.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationInType.hs
• + testsuite/tests/parser/should_fail/StringInterpolationInType.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationIncompleteExpr.hs
• + testsuite/tests/parser/should_fail/StringInterpolationIncompleteExpr.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationInvalidExpr.hs
• + testsuite/tests/parser/should_fail/StringInterpolationInvalidExpr.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationLineComment.hs
• + testsuite/tests/parser/should_fail/StringInterpolationLineComment.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationNoDelimClose.hs
• + testsuite/tests/parser/should_fail/StringInterpolationNoDelimClose.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationNoExpr.hs
• + testsuite/tests/parser/should_fail/StringInterpolationNoExpr.stderr
• + testsuite/tests/parser/should_fail/StringInterpolationNoExprClose.hs
• + testsuite/tests/parser/should_fail/StringInterpolationNoExprClose.stderr
• testsuite/tests/parser/should_fail/all.T
• + testsuite/tests/parser/should_run/StringInterpolation.hs
• + testsuite/tests/parser/should_run/StringInterpolation.stdout
• + testsuite/tests/parser/should_run/StringInterpolationOverloaded.hs
• + testsuite/tests/parser/should_run/StringInterpolationOverloaded.stdout
• testsuite/tests/parser/should_run/all.T
• utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs

The diff was not included because it is too large.