addFieldAccess

fn addFieldAccess(
    tag: Zir.Inst.Tag,
    gz: *GenZir,
    scope: *Scope,
    lhs_ri: ResultInfo,
    node: Ast.Node.Index,
) InnerError!Zir.Inst.Ref {
    const astgen = gz.astgen;
    const tree = astgen.tree;

    const object_node, const field_ident = tree.nodeData(node).node_and_token;
    const str_index = try astgen.identAsString(field_ident);
    const lhs = try expr(gz, scope, lhs_ri, object_node);

    const cursor = maybeAdvanceSourceCursorToMainToken(gz, node);
    try emitDbgStmt(gz, cursor);

    return gz.addPlNode(tag, node, Zir.Inst.Field{
        .lhs = lhs,
        .field_name_start = str_index,
    });
}