Separate database Result and start generics

1 files changed, 0 insertions, 118 deletions

diff --git a/src/db.zig b/src/db.zig
deleted file mode 100644
index b0aa63a..0000000
--- a/src/db.zig
+++ /dev/null
@@ -1,118 +0,0 @@
-const std = @import("std");
-const assert = std.debug.assert;
-const c = @cImport({
-    @cInclude("duckdb.h");
-});
-
-
-const Result = struct {
-    _res:   c.duckdb_result,
-    _chunk: c.duckdb_data_chunk,
-
-    pub fn init() Result {
-        return .{
-            ._res   = undefined,
-            ._chunk = null
-        };
-    }
-    pub fn deinit(self: *Result) void {
-        c.duckdb_destroy_result(&self._res);
-        c.duckdb_destroy_data_chunk(&self._chunk);
-    }
-
-    /// There's not way to know how many total elements we have, but we can
-    /// know how many we have in the current chunk.
-    fn getCurrentChunkSize(self: Result) usize {
-        if (self._chunk != null) {
-            return 0;
-        }
-        return c.duckdb_data_chunk_get_size(self._chunk);
-    }
-
-    pub fn getColumnCount(self: Result) usize {
-        return c.duckdb_data_chunk_get_column_count(self._chunk);
-    }
-
-    /// This needs to be called repeatedly to obtain the next blocks of
-    /// data. There's no way to know how many elements we'll obtain from
-    /// it.
-    pub fn fetchDataChunk(self: *Result) void{
-        if (self._chunk != null){
-            c.duckdb_destroy_data_chunk(&self._chunk);
-        }
-        self._chunk = c.duckdb_fetch_chunk(self._res);
-    }
-
-    pub fn exausted(self: Result) bool{
-        return self._chunk != null;
-    }
-};
-
-
-const Connection = struct {
-    _conn: c.duckdb_connection,
-
-    pub fn init(db: Self) !Connection {
-        var conn: Connection = undefined;
-        if( c.duckdb_connect(db._db, &conn._conn) == c.DuckDBError ){
-            return error.DuckDBError;
-        }
-        return conn;
-    }
-
-    pub fn deinit(self: *Connection) void {
-        c.duckdb_disconnect(&self._conn);
-    }
-
-    pub fn query(self: *Connection, q: [*c]const u8) !Result{
-        var result = Result.init();
-        const state = c.duckdb_query(self._conn, q, &result._res);
-        if ( state == c.DuckDBError){
-            return error.DuckDBError;
-        }
-        result.fetchDataChunk();
-        return result;
-    }
-};
-
-
-pub const Self = @This();
-
-_db: c.duckdb_database,
-
-pub fn init(file: [*c]const u8) !Self{
-    var db : Self = undefined;
-    if (c.duckdb_open(file, &db._db) == c.DuckDBError) {
-        return error.DuckDBError;
-    }
-    return db;
-}
-
-pub fn deinit(self: *Self) void{
-    c.duckdb_close(&self._db);
-}
-
-pub fn connect(self: Self) !Connection {
-    return Connection.init(self);
-}
-
-test "Open and connect" {
-    var database = try Self.init(":memory:");
-    defer database.deinit();
-    var connection = try database.connect();
-    defer connection.deinit();
-}
-
-test "Query size" {
-    var database = try Self.init(":memory:");
-    defer database.deinit();
-    var connection = try database.connect();
-    defer connection.deinit();
-
-    _ = try connection.query("CREATE TABLE integers (i INTEGER, j INTEGER);");
-    _ = try connection.query("INSERT INTO integers VALUES (3, 4), (5, 6), (7, NULL);");
-    var result = try connection.query("SELECT * FROM integers;");
-    defer result.deinit();
-
-    try std.testing.expect(2 == result.getColumnCount());
-}