refactor: move (object/content) components out

solanaceae/ngc_ft1_sha1/components.cpp

@@ -0,0 +1,25 @@
+#include "./components.hpp"
+
+std::vector<size_t> Components::FT1ChunkSHA1Cache::chunkIndices(const SHA1Digest& hash) const {
+	const auto it = chunk_hash_to_index.find(hash);
+	if (it != chunk_hash_to_index.cend()) {
+		return it->second;
+	} else {
+		return {};
+	}
+}
+
+bool Components::FT1ChunkSHA1Cache::haveChunk(const SHA1Digest& hash) const {
+	if (have_all) { // short cut
+		return true;
+	}
+
+	if (auto i_vec = chunkIndices(hash); !i_vec.empty()) {
+		// TODO: should i test all?
+		return have_chunk[i_vec.front()];
+	}
+
+	// not part of this file
+	return false;
+}
+