forked from lix-project/lix
81 lines
1.4 KiB
C++
81 lines
1.4 KiB
C++
#pragma once
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#include "nixexpr.hh"
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#include "eval.hh"
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#include <string>
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#include <map>
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namespace nix {
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void printValueAsJSON(EvalState & state, bool strict,
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Value & v, std::ostream & out, PathSet & context);
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void escapeJSON(std::ostream & str, const string & s);
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struct JSONObject
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{
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std::ostream & str;
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bool first;
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JSONObject(std::ostream & str) : str(str), first(true)
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{
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str << "{";
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}
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~JSONObject()
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{
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str << "}";
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}
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void attr(const string & s)
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{
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if (!first) str << ","; else first = false;
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escapeJSON(str, s);
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str << ":";
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}
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void attr(const string & s, const string & t)
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{
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attr(s);
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escapeJSON(str, t);
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}
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void attr(const string & s, const char * t)
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{
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attr(s);
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escapeJSON(str, t);
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}
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void attr(const string & s, bool b)
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{
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attr(s);
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str << (b ? "true" : "false");
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}
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template<typename T>
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void attr(const string & s, const T & n)
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{
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attr(s);
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str << n;
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}
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};
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struct JSONList
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{
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std::ostream & str;
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bool first;
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JSONList(std::ostream & str) : str(str), first(true)
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{
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str << "[";
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}
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~JSONList()
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{
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str << "]";
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}
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void elem()
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{
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if (!first) str << ","; else first = false;
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}
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void elem(const string & s)
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{
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elem();
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escapeJSON(str, s);
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}
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};
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}
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