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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - YAML IO errors"
href="http://llvm.org/bugs/show_bug.cgi?id=15505">15505</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>YAML IO errors
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rrankene@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I'm trying to parse a simple JSON file, and am having problems with using
YAMLIO.
Also note the unit test YAMLIOTest.cpp is disabled with a #if 0.
The JSON file yaml.json contains:
{
"bool_test": true,
"directory": ".",
"suffix": "_test",
"int_test": 4
}
The test program when run shows:
YAML:5:15: error: invalid number
"int_test": 4
^~ // ^~ points to the 4
bool_test: true
save_directory: .",
"suffix": "_test",
"int_test": 4
}
save_suffix: _test",
"int_test": 4
}
int_test: -627100365
Done
Note the strings are both incorrect - it can't seem to identify the proper
end of each string. And it ends up lost looking at the integer. Adding a ',' to
the end of the 4 allows the 4 to be properly found. The comma should not be
necessary.
The test code is:
#include <iostream>
#include <fstream>
#include "llvm/Support/YAMLTraits.h"
using namespace std;
using llvm::yaml::Input;
using llvm::yaml::MappingTraits;
//===-------------------------
---------------------------------------------===//
// Test MappingTraits
//===----------------------------------------------------------------------===//
struct FooBar {
bool boolTest;
llvm::StringRef directory;
llvm::StringRef suffix;
int32_t intTest;
};
typedef std::vector<FooBar> FooBarSequence;
namespace llvm {
namespace yaml {
template <>
struct MappingTraits<FooBar> {
static void mapping(IO &io, FooBar& fb) {
io.mapRequired("bool_test", fb.boolTest);
io.mapRequired("directory", fb.directory);
io.mapRequired("suffix", fb.suffix);
io.mapRequired("int_test", fb.intTest);
struct FooBar {
bool boolTest;
llvm::StringRef directory;
llvm::StringRef suffix;
int32_t intTest;
};
namespace llvm {
namespace yaml {
template <>
struct MappingTraits<FooBar> {
static void mapping(IO &io, FooBar& fb) {
io.mapRequired("bool_test", fb.boolTest);
io.mapRequired("directory", fb.directory);
io.mapRequired("suffix", fb.suffix);
io.mapRequired("int_test", fb.intTest);
}
};
}
}
int main()
{
ifstream jsonFile("yaml.json");
if (jsonFile.is_open())
{
// Read file into a string
string jsonSource((istreambuf_iterator<char>(jsonFile)),
istreambuf_iterator<char>());
jsonFile.close();
FooBar doc;
Input yin(jsonSource.c_str());
yin >> doc;
cout << "bool_test: " << (doc.boolTest ? "true" : "false") << endl;
cout << "directory: " << doc.directory.data() << endl;
cout << "suffix: " << doc.suffix.data() << endl;
cout << "int_test: " << doc.intTest << endl;
cout << "Done\n";
}
}</pre>
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