nix/src/libexpr/attr-path.hh

#pragma once

#include "eval.hh"

#include <string>
#include <map>
#include <tuple>

namespace nix {

Value * findAlongAttrPath(EvalState & state, const string & attrPath,
    Bindings & autoArgs, Value & vIn);

/* Heuristic to find the filename and lineno or a derivation. */
std::tuple<std::string, int> findDerivationFilename(EvalState & state,
    Value & v, std::string what);

}
Use "#pragma once" to prevent repeated header file inclusion 2012-07-18 14:59:03 -04:00			`#pragma once`
* Refactoring: get the selection path stuff out of getDerivations() and put it into a separate function findAlongAttrPath(). 2006-07-26 11:05:15 -04:00
* Make sure that config.h is included before the system headers, because it defines _FILE_OFFSET_BITS. Without this, on OpenSolaris the system headers define it to be 32, and then the 32-bit stat() ends up being called with a 64-bit "struct stat", or vice versa. This also ensures that we get 64-bit file sizes everywhere. * Remove the redundant call to stat() in parseExprFromFile(). The file cannot be a symlink because that's the exit condition of the loop before. 2010-10-04 13:55:38 -04:00			`#include "eval.hh"`

* Refactoring: get the selection path stuff out of getDerivations() and put it into a separate function findAlongAttrPath(). 2006-07-26 11:05:15 -04:00			`#include <string>`
			`#include <map>`
libexpr: add findDerivationFilename extract the derivation to filename:lineno heuristic 2019-10-23 11:21:10 -04:00			`#include <tuple>`
* Refactoring: get the selection path stuff out of getDerivations() and put it into a separate function findAlongAttrPath(). 2006-07-26 11:05:15 -04:00
* Use a proper namespace. * Optimise header file usage a bit. * Compile the parser as C++. 2006-09-04 17:06:23 -04:00			`namespace nix {`

Work on Values instead of Exprs This prevents some duplicate evaluation in nix-env and nix-instantiate. Also, when traversing ~/.nix-defexpr, only read regular files with the extension .nix. Previously it was reading files like .../channels/binary-caches/<name>. The only reason this didn't cause problems is pure luck (namely, <name> shadows an actual Nix expression, the binary-caches files happen to be syntactically valid Nix expressions, and we iterate over the directory contents in just the right order). 2013-09-03 09:17:51 -04:00			`Value * findAlongAttrPath(EvalState & state, const string & attrPath,`
			`Bindings & autoArgs, Value & vIn);`
* Refactoring: get the selection path stuff out of getDerivations() and put it into a separate function findAlongAttrPath(). 2006-07-26 11:05:15 -04:00
libexpr: add findDerivationFilename extract the derivation to filename:lineno heuristic 2019-10-23 11:21:10 -04:00			`/* Heuristic to find the filename and lineno or a derivation. */`
			`std::tuple<std::string, int> findDerivationFilename(EvalState & state,`
			`Value & v, std::string what);`

* Use a proper namespace. * Optimise header file usage a bit. * Compile the parser as C++. 2006-09-04 17:06:23 -04:00			`}`