Zig 0.17.0-dev (Split by item)

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constantExtraDataTrail

Builder.constantExtraDataTrail

fn constantExtraDataTrail(
    self: *const Builder,
    comptime T: type,
    index: Constant.Item.ExtraIndex,
) struct

File

lib/std/zig/llvm/Builder.zig:12062

Code

fn constantExtraDataTrail(
    self: *const Builder,
    comptime T: type,
    index: Constant.Item.ExtraIndex,
) struct { data: T, trail: ConstantExtraDataTrail } {
    var result: T = undefined;
    const info = @typeInfo(T).@"struct";
    inline for (
        info.field_names,
        info.field_types,
        self.constant_extra.items[index..][0..info.field_names.len],
    ) |field_name, field_type, value|
        @field(result, field_name) = switch (field_type) {
            u32 => value,
            String, Type, Constant, Function.Index, Function.Block.Index => @fromBackingInt(@intCast(value)),
            Constant.GetElementPtr.Info => @bitCast(value),
            else => @compileError("bad field type: " ++ @typeName(field_type)),
        };
    return .{
        .data = result,
        .trail = .{ .index = index + @as(Constant.Item.ExtraIndex, @intCast(info.field_names.len)) },
    };
}