Brandon Chinn pushed to branch wip/interpolated-strings at Glasgow Haskell Compiler / GHC Commits: ae191fb0 by Brandon Chinn at 2026-10-31T15:22:48-07:00 Add regression test for pprHsString - - - - - cf005af1 by Brandon Chinn at 2026-10-31T15:22:49-07:00 Reorganize processChars functions Move functions around, no code changes - - - - - 6290a0a8 by Brandon Chinn at 2026-10-31T15:22:49-07:00 Always use processCharsSingle to get StringLexError - - - - - 44b3d624 by Brandon Chinn at 2026-10-31T15:22:49-07:00 Add pprHsStringMulti, unify string ppr functions - - - - - 00be406b by Brandon Chinn at 2026-10-31T15:44:58-07:00 Implement interpolated strings (#27592) - - - - - 23c1155a by Brandon Chinn at 2026-10-31T19:30:06-07:00 [ci skip] wip - - - - - 88 changed files: - + changelog.d/string-interpolation - compiler/GHC/Builtin/KnownOccs.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/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 - docs/users_guide/exts/qualified_strings.rst - + docs/users_guide/exts/string_interpolation.rst - libraries/base/src/GHC/Essentials.hs - libraries/base/src/GHC/Show.hs - libraries/ghc-experimental/ghc-experimental.cabal.in - + libraries/ghc-experimental/src/Data/String/Experimental.hs - + libraries/ghc-experimental/src/Data/String/Interpolate/Builder/Experimental.hs - + libraries/ghc-experimental/src/Data/String/Interpolate/Class/Experimental.hs - + libraries/ghc-experimental/src/Data/String/Interpolate/Default/Experimental.hs - + libraries/ghc-experimental/src/Data/String/Interpolate/ShowS/Experimental.hs - libraries/ghc-internal/ghc-internal.cabal.in - + libraries/ghc-internal/src/GHC/Internal/Data/String/Interpolate.hs - libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs - libraries/ghc-internal/src/GHC/Internal/Show.hs - libraries/ghc-internal/src/GHC/Internal/TH/Lib.hs - testsuite/tests/count-deps/CountDepsAst.stdout - testsuite/tests/driver/T4437.hs - testsuite/tests/interface-stability/base-exports.stdout - testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs - testsuite/tests/interface-stability/base-exports.stdout-mingw32 - testsuite/tests/interface-stability/ghc-experimental-exports.stdout - testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32 - testsuite/tests/interface-stability/template-haskell-exports.stdout - + 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/StringInterpolationSmartQuotes.hs - + testsuite/tests/parser/should_fail/StringInterpolationSmartQuotes.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 - testsuite/tests/printer/Makefile - + testsuite/tests/printer/PprStringInterpolation.hs - + testsuite/tests/printer/PprStringNoSourceText.hs - + testsuite/tests/printer/PprStringNoSourceText.stderr - testsuite/tests/printer/all.T - + testsuite/tests/qualified-strings/should_run/Example/SQL.hs - testsuite/tests/qualified-strings/should_run/all.T - + testsuite/tests/qualified-strings/should_run/qstrings_interpolation.hs - + testsuite/tests/qualified-strings/should_run/qstrings_interpolation.stdout - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs The diff was not included because it is too large. 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