done

node_modules/better-sqlite3/src/util/bind-map.cpp

@@ -0,0 +1,73 @@
+class BindMap {
+public:
+
+	// This nested class represents a single mapping between a parameter name
+	// and its associated parameter index in a prepared statement.
+	class Pair { friend class BindMap;
+		public:
+
+			inline int GetIndex() {
+				return index;
+			}
+
+			inline v8::Local<v8::String> GetName(v8::Isolate* isolate) {
+				return name.Get(isolate);
+			}
+
+		private:
+
+			explicit Pair(v8::Isolate* isolate, const char* name, int index)
+				: name(isolate, InternalizedFromUtf8(isolate, name, -1)), index(index) {}
+
+			explicit Pair(v8::Isolate* isolate, Pair* pair)
+				: name(isolate, pair->name), index(pair->index) {}
+
+			const v8::Global<v8::String> name;
+			const int index;
+	};
+
+	explicit BindMap(char _) {
+		assert(_ == 0);
+		pairs = NULL;
+		capacity = 0;
+		length = 0;
+	}
+
+	~BindMap() {
+		while (length) pairs[--length].~Pair();
+		FREE_ARRAY<Pair>(pairs);
+	}
+
+	inline Pair* GetPairs() {
+		return pairs;
+	}
+
+	inline int GetSize() {
+		return length;
+	}
+
+	// Adds a pair to the bind map, expanding the capacity if necessary.
+	void Add(v8::Isolate* isolate, const char* name, int index) {
+		assert(name != NULL);
+		if (capacity == length) Grow(isolate);
+		new (pairs + length++) Pair(isolate, name, index);
+	}
+
+private:
+
+	void Grow(v8::Isolate* isolate) {
+		assert(capacity == length);
+		capacity = (capacity << 1) | 2;
+		Pair* new_pairs = ALLOC_ARRAY<Pair>(capacity);
+		for (int i = 0; i < length; ++i) {
+			new (new_pairs + i) Pair(isolate, pairs + i);
+			pairs[i].~Pair();
+		}
+		FREE_ARRAY<Pair>(pairs);
+		pairs = new_pairs;
+	}
+
+	Pair* pairs;
+	int capacity;
+	int length;
+};