chore(3p/nix): unvendor tvix 0.1 r/4098

Nothing is using this now, and we'll likely never pick this up again,
but we learned a lot in the process.

Every now and then this breaks in some bizarre way on channel bumps
and it's just a waste of time to maintain that.

Change-Id: Idcf2f5acd4ca7070ce18d7149cbfc0d967dc0a44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5632
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Autosubmit: tazjin <tazjin@tvl.su>

1 files changed, 0 insertions, 100 deletions

diff --git a/third_party/nix/src/libexpr/parser.hh b/third_party/nix/src/libexpr/parser.hh
deleted file mode 100644
index 70b5450b5aa8..000000000000
--- a/third_party/nix/src/libexpr/parser.hh
+++ /dev/null
@@ -1,100 +0,0 @@
-// Parser utilities for use in parser.y
-#pragma once
-
-// TODO(tazjin): Audit these includes, they were in parser.y
-#include <optional>
-#include <variant>
-
-#include <glog/logging.h>
-
-#include "libexpr/eval.hh"
-#include "libexpr/nixexpr.hh"
-#include "libutil/util.hh"
-
-#define YY_DECL                                                               \
-  int yylex(YYSTYPE* yylval_param, YYLTYPE* yylloc_param, yyscan_t yyscanner, \
-            nix::ParseData* data)
-
-#define CUR_POS makeCurPos(*yylocp, data)
-
-namespace nix {
-
-struct ParseData {
-  EvalState& state;
-  SymbolTable& symbols;
-  Expr* result;
-  Path basePath;
-  std::optional<Symbol> path;
-  std::string error;
-  Symbol sLetBody;
-
-  ParseData(EvalState& state)
-      : state(state),
-        symbols(state.symbols),
-        sLetBody(symbols.Create("<let-body>")){};
-};
-
-// Clang fails to identify these functions as used, probably because
-// of some interaction between the lexer/parser codegen and something
-// else.
-//
-// To avoid warnings for that we disable -Wunused-function in this block.
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunused-function"
-
-// TODO(tazjin): move dupAttr to anonymous namespace
-static void dupAttr(const AttrPath& attrPath, const Pos& pos,
-                    const Pos& prevPos) {
-  throw ParseError(format("attribute '%1%' at %2% already defined at %3%") %
-                   showAttrPath(attrPath) % pos % prevPos);
-}
-
-static void dupAttr(Symbol attr, const Pos& pos, const Pos& prevPos) {
-  throw ParseError(format("attribute '%1%' at %2% already defined at %3%") %
-                   attr % pos % prevPos);
-}
-
-void addAttr(ExprAttrs* attrs, AttrPath& attrPath, Expr* e, const Pos& pos);
-
-void addFormal(const Pos& pos, Formals* formals, const Formal& formal);
-
-Expr* stripIndentation(const Pos& pos, SymbolTable& symbols, VectorExprs& es);
-
-Path resolveExprPath(Path path);
-
-// implementations originally from lexer.l
-
-static Expr* unescapeStr(SymbolTable& symbols, const char* s, size_t length) {
-  std::string t;
-  t.reserve(length);
-  char c;
-  while ((c = *s++)) {
-    if (c == '\\') {
-      assert(*s);
-      c = *s++;
-      if (c == 'n') {
-        t += '\n';
-      } else if (c == 'r') {
-        t += '\r';
-      } else if (c == 't') {
-        t += '\t';
-      } else {
-        t += c;
-      }
-    } else if (c == '\r') {
-      /* Normalise CR and CR/LF into LF. */
-      t += '\n';
-      if (*s == '\n') {
-        s++;
-      } /* cr/lf */
-    } else {
-      t += c;
-    }
-  }
-  return new ExprString(symbols.Create(t));
-}
-
-#pragma clang diagnostic pop  // re-enable -Wunused-function
-
-}  // namespace nix