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* Use a symbol table to represent identifiers and attribute names

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efficiently.  The symbol table ensures that there is only one copy
  of each symbol, thus allowing symbols to be compared efficiently
  using a pointer equality test.
This commit is contained in:
Eelco Dolstra 2010-04-13 12:25:42 +00:00
parent 10e8b1fd15
commit ac1e8f40d4
15 changed files with 228 additions and 101 deletions
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4
src/libexpr/parser.hh
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@ -9,10 +9,10 @@ namespace nix {
/* Parse a Nix expression from the specified file. If `path' refers
to a directory, then "/default.nix" is appended. */
Expr * parseExprFromFile(Path path);
Expr * parseExprFromFile(EvalState & state, Path path);
/* Parse a Nix expression from the specified string. */
Expr * parseExprFromString(const string & s, const Path & basePath);
Expr * parseExprFromString(EvalState & state, const string & s, const Path & basePath);
}