#include <string>
#include <fstream>
#include <algorithm>
+#include <set>
#include "./../glslang/Public/ShaderLang.h"
// Can be overridden to customize.
class DirStackFileIncluder : public glslang::TShader::Includer {
public:
+ DirStackFileIncluder() : externalLocalDirectoryCount(0) { }
+
virtual IncludeResult* includeLocal(const char* headerName,
const char* includerName,
size_t inclusionDepth) override
{
- return readLocalPath(headerName, includerName, inclusionDepth);
+ return readLocalPath(headerName, includerName, (int)inclusionDepth);
}
virtual IncludeResult* includeSystem(const char* headerName,
return readSystemPath(headerName);
}
+ // Externally set directories. E.g., from a command-line -I<dir>.
+ // - Most-recently pushed are checked first.
+ // - All these are checked after the parse-time stack of local directories
+ // is checked.
+ // - This only applies to the "local" form of #include.
+ // - Makes its own copy of the path.
+ virtual void pushExternalLocalDirectory(const std::string& dir)
+ {
+ directoryStack.push_back(dir);
+ externalLocalDirectoryCount = (int)directoryStack.size();
+ }
+
virtual void releaseInclude(IncludeResult* result) override
{
if (result != nullptr) {
}
}
+ virtual std::set<std::string> getIncludedFiles()
+ {
+ return includedFiles;
+ }
+
virtual ~DirStackFileIncluder() override { }
protected:
typedef char tUserDataElement;
std::vector<std::string> directoryStack;
+ int externalLocalDirectoryCount;
+ std::set<std::string> includedFiles;
// Search for a valid "local" path based on combining the stack of include
// directories and the nominal name of the header.
virtual IncludeResult* readLocalPath(const char* headerName, const char* includerName, int depth)
{
- // Discard popped include directories, and if first level, initialize.
- directoryStack.resize(depth);
+ // Discard popped include directories, and
+ // initialize when at parse-time first level.
+ directoryStack.resize(depth + externalLocalDirectoryCount);
if (depth == 1)
- directoryStack.front() = getDirectory(includerName);
+ directoryStack.back() = getDirectory(includerName);
- // find a directory that works, reverse search of include stack
+ // Find a directory that works, using a reverse search of the include stack.
for (auto it = directoryStack.rbegin(); it != directoryStack.rend(); ++it) {
std::string path = *it + '/' + headerName;
std::replace(path.begin(), path.end(), '\\', '/');
std::ifstream file(path, std::ios_base::binary | std::ios_base::ate);
if (file) {
directoryStack.push_back(getDirectory(path));
+ includedFiles.insert(path);
return newIncludeResult(path, file, (int)file.tellg());
}
}