Add basic meta info file parsing

1 files changed, 23 insertions, 0 deletions

diff --git a/src/bencode.zig b/src/bencode.zig
index 44dec0d..d09f394 100644
--- a/src/bencode.zig
+++ b/src/bencode.zig
@@ -70,6 +70,29 @@ pub const BValue = union(enum) {
             .int => {},
         }
     }
+
+    pub fn asDict(self: BValue) !std.StringArrayHashMap(BValue) {
+        switch (self) {
+            .dict => |d| return d,
+            else => return error.WrongType,
+        }
+    }
+
+    pub fn asInt(self: BValue, comptime itype: type) !itype {
+        switch (self) {
+            .int => |i| {
+                return std.math.cast(itype, i) orelse error.Overflow;
+            },
+            else => return error.WrongType,
+        }
+    }
+
+    pub fn asString(self: BValue) ![]const u8 {
+        switch (self) {
+            .string => |s| return s,
+            else => return error.WrongType,
+        }
+    }
 };
 
 pub fn bdecodeBuf(a: std.mem.Allocator, buf: []const u8) !BValue {