forked from lix-project/lix
ac1e8f40d4
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.
35 lines
740 B
C++
35 lines
740 B
C++
#include "common-opts.hh"
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#include "../libmain/shared.hh"
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#include "util.hh"
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#include "parser.hh"
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namespace nix {
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bool parseOptionArg(const string & arg, Strings::iterator & i,
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const Strings::iterator & argsEnd, EvalState & state,
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Bindings & autoArgs)
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{
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if (arg != "--arg" && arg != "--argstr") return false;
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UsageError error(format("`%1%' requires two arguments") % arg);
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if (i == argsEnd) throw error;
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string name = *i++;
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if (i == argsEnd) throw error;
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string value = *i++;
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Value & v(autoArgs[state.symbols.create(name)]);
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if (arg == "--arg")
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state.mkThunk_( v, parseExprFromString(state, value, absPath(".")));
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else
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mkString(v, value);
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return true;
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}
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}
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