Track source names in SL::Module

[libs/gl.git] / source / glsl / sourcemap.cpp

diff --git a/source/glsl/sourcemap.cpp b/source/glsl/sourcemap.cpp
new file mode 100644 (file)
index 0000000..e74f1b6
--- /dev/null
+++ b/source/glsl/sourcemap.cpp
@@ -0,0 +1,84 @@
+#include <msp/strings/format.h>
+#include <msp/strings/regex.h>
+#include <msp/strings/utils.h>
+#include "sourcemap.h"
+
+using namespace std;
+
+namespace Msp {
+namespace GL {
+namespace SL {
+
+SourceMap::SourceMap():
+       base_index(0)
+{ }
+
+void SourceMap::set_name(unsigned i, const std::string &n)
+{
+       if(source_names.empty())
+               base_index = i;
+       else if(i<base_index)
+       {
+               source_names.insert(source_names.begin(), base_index-i, string());
+               base_index = i;
+       }
+       i -= base_index;
+
+       if(source_names.size()<=i)
+               source_names.resize(i+1);
+       source_names[i] = n;
+}
+
+void SourceMap::merge_from(const SourceMap &other)
+{
+       if(other.base_index<base_index)
+       {
+               source_names.insert(source_names.begin(), base_index-other.base_index, string());
+               base_index = other.base_index;
+       }
+       if(get_count()<other.get_count())
+               source_names.resize(other.get_count()-base_index);
+
+       for(unsigned i=0; i<other.source_names.size(); ++i)
+               if(!other.source_names[i].empty())
+                       source_names[i+other.base_index-base_index] = other.source_names[i];
+}
+
+string SourceMap::translate_errors(const string &errors) const
+{
+       static const Regex r_message("^(([0-9]+)\\(([0-9]+)\\) :|ERROR: ([0-9]+):([0-9]+):) (.*)$");
+       vector<string> lines = split(errors, '\n');
+       string translated;
+       for(vector<string>::const_iterator i=lines.begin(); i!=lines.end(); ++i)
+       {
+               RegMatch m = r_message.match(*i);
+               if(m)
+               {
+                       unsigned index = 0;
+                       unsigned line = 0;
+                       if(m[2])
+                       {
+                               index = lexical_cast<unsigned>(m[2].str);
+                               line = lexical_cast<unsigned>(m[3].str);
+                       }
+                       else if(m[4])
+                       {
+                               index = lexical_cast<unsigned>(m[4].str);
+                               line = lexical_cast<unsigned>(m[5].str);
+                       }
+                       const char *src = "<unknown>";
+                       if(index<source_names.size() && !source_names[index].empty())
+                               src = source_names[index].c_str();
+                       translated += format("%s:%d: %s", src, line, m[6].str);
+               }
+               else
+                       translated += *i;
+               translated += '\n';
+       }
+
+       return translated;
+}
+
+} // namespace SL
+} // namespace GL
+} // namespace Msp