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Make source location info in the XML output optional.

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* src/libexpr/expr-to-xml.cc (nix::showAttrs): Add `location'
  parameter.  Provide location XML attributes when it's true.  Update
  callers.
  (nix::printTermAsXML): Likewise.

* src/libexpr/expr-to-xml.hh (nix::printTermAsXML): Update prototype;
  have `location' default to `false'.

* src/nix-instantiate/nix-instantiate.cc (printResult, processExpr): Add
  `location' parameter; update callers.
  (run): Add support for `--no-location'.

* src/nix-instantiate/help.txt: Update accordingly.

* tests/lang.sh: Invoke `nix-instantiate' with `--no-location' for the
  XML tests.

* tests/lang/eval-okay-toxml.exp, tests/lang/eval-okay-to-xml.nix: New
  files.
This commit is contained in:
Ludovic Courtès 2010-03-31 12:38:31 +00:00
parent 471419d1fa
commit 09381cccff
7 changed files with 29 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/nix-instantiate/help.txt
View file

@ -22,6 +22,8 @@ Options:
For --eval-only / --parse-only:
--xml: print an XML representation of the abstract syntax tree
--no-location: don't provide source location information in the
output XML tree
For --eval-only:

15
src/nix-instantiate/nix-instantiate.cc
View file

@ -38,13 +38,13 @@ static bool indirectRoot = false;
static void printResult(EvalState & state, Expr e,
bool evalOnly, bool xmlOutput, const ATermMap & autoArgs)
bool evalOnly, bool xmlOutput, bool location, const ATermMap & autoArgs)
{
PathSet context;
if (evalOnly)
if (xmlOutput)
printTermAsXML(e, std::cout, context);
printTermAsXML(e, std::cout, context, location);
else
std::cout << format("%1%\n") % canonicaliseExpr(e);
@ -67,7 +67,7 @@ static void printResult(EvalState & state, Expr e,
void processExpr(EvalState & state, const Strings & attrPaths,
bool parseOnly, bool strict, const ATermMap & autoArgs,
bool evalOnly, bool xmlOutput, Expr e)
bool evalOnly, bool xmlOutput, bool location, Expr e)
{
for (Strings::const_iterator i = attrPaths.begin(); i != attrPaths.end(); ++i) {
Expr e2 = findAlongAttrPath(state, *i, autoArgs, e);
@ -76,7 +76,7 @@ void processExpr(EvalState & state, const Strings & attrPaths,
e2 = strictEvalExpr(state, e2);
else
e2 = evalExpr(state, e2);
printResult(state, e2, evalOnly, xmlOutput, autoArgs);
printResult(state, e2, evalOnly, xmlOutput, location, autoArgs);
}
}
@ -89,6 +89,7 @@ void run(Strings args)
bool evalOnly = false;
bool parseOnly = false;
bool xmlOutput = false;
bool xmlOutputSourceLocation = true;
bool strict = false;
Strings attrPaths;
ATermMap autoArgs(128);
@ -124,6 +125,8 @@ void run(Strings args)
indirectRoot = true;
else if (arg == "--xml")
xmlOutput = true;
else if (arg == "--no-location")
xmlOutputSourceLocation = false;
else if (arg == "--strict")
strict = true;
else if (arg[0] == '-')
@ -139,7 +142,7 @@ void run(Strings args)
if (readStdin) {
Expr e = parseStdin(state);
processExpr(state, attrPaths, parseOnly, strict, autoArgs,
evalOnly, xmlOutput, e);
evalOnly, xmlOutput, xmlOutputSourceLocation, e);
}
for (Strings::iterator i = files.begin();
@ -148,7 +151,7 @@ void run(Strings args)
Path path = absPath(*i);
Expr e = parseExprFromFile(state, path);
processExpr(state, attrPaths, parseOnly, strict, autoArgs,
evalOnly, xmlOutput, e);
evalOnly, xmlOutput, xmlOutputSourceLocation, e);
}
printEvalStats(state);