cmJSONState.h
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#include "cmConfigure.h" // IWYU pragma: keep
#include <cstddef>
#include <string>
#include <utility>
#include <vector>
#include "cmStringAlgorithms.h"
namespace Json {
class Value;
}
class cmJSONState
{
using Location = struct
{
int line;
int column;
};
public:
using JsonPair = std::pair<const std::string, const Json::Value*>;
cmJSONState() = default;
cmJSONState(const std::string& filename, Json::Value* root);
void AddError(std::string const& errMsg);
void AddErrorAtValue(std::string const& errMsg, const Json::Value* value);
void AddErrorAtOffset(std::string const& errMsg, std::ptrdiff_t offset);
std::string GetErrorMessage(bool showContext = true);
std::string key();
std::string key_after(std::string const& key);
const Json::Value* value_after(std::string const& key);
void push_stack(std::string const& key, const Json::Value* value);
void pop_stack();
class Error
{
public:
Error(Location loc, std::string errMsg)
: location(loc)
, message(std::move(errMsg)){};
Error(std::string errMsg)
: location({ -1, -1 })
, message(std::move(errMsg)){};
std::string GetErrorMessage() const
{
std::string output = message;
if (location.line > 0) {
output = cmStrCat("Error: @", location.line, ",", location.column,
": ", output);
}
return output;
}
Location GetLocation() const { return location; }
private:
Location location;
std::string message;
};
std::vector<JsonPair> parseStack;
std::vector<Error> errors;
std::string doc;
private:
std::string GetJsonContext(Location loc);
Location LocateInDocument(ptrdiff_t offset);
};