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#pragma once
#include "CodegenConfig.hpp"
#include "CodegenMacros.hpp"
#include "CodegenOutput.inl"
#include <Macros.hpp>
#include <ScopeGuard.hpp>
#include <cstdio>
#include <cstdlib>
#include <filesystem>
namespace Utils {
std::string ReadFileAsString(const std::filesystem::path& path) {
auto file = Utils::OpenCstdioFile(path, Utils::Read);
if (!file) throw std::runtime_error("Failed to open source file.");
DEFER { fclose(file); };
fseek(file, 0, SEEK_END);
auto fileSize = ftell(file);
rewind(file);
std::string result(fileSize, '\0');
fread(result.data(), fileSize, 1, file);
return result;
}
bool WriteOutputFile(const CodegenOutput& output, std::string_view dir, std::string_view filename, std::string_view additionalSuffix = {}) {
char path[2048];
snprintf(path, sizeof(path), "%.*s/%.*s%.*s", PRINTF_STRING_VIEW(dir), PRINTF_STRING_VIEW(filename), PRINTF_STRING_VIEW(additionalSuffix));
auto outputFile = Utils::OpenCstdioFile(path, Utils::WriteTruncate);
if (!outputFile) {
printf("[ERROR] unable to open output file %s\n", path);
return false;
}
DEFER { fclose(outputFile); };
DEBUG_PRINTF("Writing output %s\n", path);
output.Write(outputFile);
return true;
}
std::string MakeFullName(std::string_view name, DeclNamespace* ns = nullptr) {
size_t length = 0;
std::vector<std::string_view> components;
if (!name.empty()) {
components.push_back(name);
length += name.length();
}
DeclNamespace* currentNamespace = ns;
while (currentNamespace) {
components.push_back(currentNamespace->name);
length += currentNamespace->name.size() + /*::*/ 2;
currentNamespace = currentNamespace->container;
}
std::string fullname;
fullname.reserve(length);
for (auto it = components.rbegin(); it != components.rend(); ++it) {
fullname += *it;
fullname += "::";
}
// Get rid of the last "::"
fullname.pop_back();
fullname.pop_back();
return fullname;
}
void ProduceGeneratedHeaderFileHeader(CodegenOutput& output) {
output.AddOutputThing(CodegenOutputThing{
.text = &R"""(
// This file is generated. Any changes will be overidden when building.
#pragma once
#include <MetadataBase.hpp>
#include <cstddef>
#include <cstdint>
)"""[1],
});
}
void ProduceGeneratedSourceFileHeader(CodegenOutput& output) {
output.AddOutputThing(CodegenOutputThing{
// TODO we need to get the header name
.text = &R"""(
// This file is generated. Any changes will be overidden when building.
#include <cstddef>
#include <cstdint>
#include <frozen/string.h>
#include <frozen/unordered_map.h>
using namespace std::literals;
)"""[1],
});
}
} // namespace Utils
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