Zig 0.17.0-dev (Split by item)

This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig library itself.

extraData

Ast.extraData

pub fn extraData(tree: Ast, index: ExtraIndex, comptime T: type) T

File

lib/std/zig/Ast.zig:305

Code

pub fn extraData(tree: Ast, index: ExtraIndex, comptime T: type) T {
    const info = @typeInfo(T).@"struct";
    var result: T = undefined;
    inline for (info.field_names, info.field_types, 0..) |field_name, field_type, i| {
        @field(result, field_name) = switch (field_type) {
            Node.Index,
            Node.OptionalIndex,
            OptionalTokenIndex,
            ExtraIndex,
            => @fromBackingInt(@intCast(tree.extra_data[@backingInt(index) + i])),
            TokenIndex => tree.extra_data[@backingInt(index) + i],
            else => @compileError("unexpected field type: " ++ @typeName(field_type)),
        };
    }
    return result;
}