Compiler crash in the generator

[rdrpenguin04]

... Why do I keep finding all of the crashes...

Here's my slint code:

import { Button, HorizontalBox, ListView, ScrollView, VerticalBox } from "std-widgets.slint";

export struct VisualTreeNode := {
    expanded: bool,
    id: int,
    indent: int,
    name: string,
}

export struct SubMenuItem := {
    name: string,
}

export struct MenuItem := {
    name: string,
    children: [SubMenuItem],
}

Main := Window {
    property<length> tree-view-item-height: 20px;
    property<[VisualTreeNode]> tree: [];
    callback expand(int, bool);
    property<[MenuItem]> menu-items;
    callback menu-button-clicked(string);
    preferred-width: 1280px;
    preferred-height: 720px;
    VerticalBox {
        HorizontalBox {
            height: 15px;
            for menu-item in menu-items : VerticalBox { Text {
                text: menu-item.name;
                popup := PopupWindow {
                    VerticalBox {
                        for child in menu-item.children : Text {
                            text: child.name;
                        }
                    }
                }
                TouchArea {
                    clicked => {
                        menu-button-clicked(menu-item.name);
                    }
                }
            } }
        }
        HorizontalBox {
            ListView {
                width: 25%;
                for node in root.tree : HorizontalLayout {
                    height: tree-view-item-height;
                    padding-left: node.indent * tree-view-item-height * 2;
                    Button {
                        width: tree-view-item-height * 3 / 4;
                        text: node.expanded ? "-" : "+";
                        clicked => {
                            node.expanded = !node.expanded;
                            root.expand(node.id, node.expanded);
                        }
                    }
                    Text {
                        text: node.name;
                        font-size: tree-view-item-height * 3 / 4;
                    }
                }
            }
            VerticalBox {
                width: 50%;
                Text { text: "Hello"; }
            }
        }
    }
}

And here's the panic:

  process didn't exit successfully: `/home/rdrpenguin/OpenDisasm/target/debug/build/od_gui_slint-209520c725cd716c/build-script-build` (exit status: 101)
  --- stderr
  thread 'main' panicked at 'Expression::StructFieldAccess's base expression is not an Object type', /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:1604:18
  stack backtrace:
     0: rust_begin_unwind
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/std/src/panicking.rs:584:5
     1: core::panicking::panic_fmt
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/panicking.rs:143:14
     2: i_slint_compiler::generator::rust::compile_expression
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:1604:18
     3: i_slint_compiler::generator::rust::compile_expression
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:1477:21
     4: i_slint_compiler::generator::rust::generate_sub_component
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:612:25
     5: i_slint_compiler::generator::rust::generate_item_tree
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:997:20
     6: i_slint_compiler::generator::rust::generate_sub_component::{{closure}}
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:534:13
     7: core::iter::adapters::map::map_fold::{{closure}}
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/iter/adapters/map.rs:84:28
     8: core::iter::traits::iterator::Iterator::fold
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/iter/traits/iterator.rs:2362:21
     9: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/iter/adapters/map.rs:124:9
    10: core::iter::traits::iterator::Iterator::for_each
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/iter/traits/iterator.rs:779:9
    11: <alloc::vec::Vec<T,A> as alloc::vec::spec_extend::SpecExtend<T,I>>::spec_extend
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/alloc/src/vec/spec_extend.rs:40:17
    12: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter_nested::SpecFromIterNested<T,I>>::from_iter
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/alloc/src/vec/spec_from_iter_nested.rs:62:9
    13: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/alloc/src/vec/spec_from_iter.rs:33:9
    14: <alloc::vec::Vec<T> as core::iter::traits::collect::FromIterator<T>>::from_iter
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/alloc/src/vec/mod.rs:2552:9
    15: core::iter::traits::iterator::Iterator::collect
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/iter/traits/iterator.rs:1784:9
    16: i_slint_compiler::generator::rust::generate_sub_component
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:530:32
    17: i_slint_compiler::generator::rust::generate_item_tree
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:997:20
    18: i_slint_compiler::generator::rust::generate_public_component
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:248:9
    19: i_slint_compiler::generator::rust::generate
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/internal/compiler/generator/rust.rs:125:17
    20: slint_build::compile_with_config
               at /home/rdrpenguin/.cargo/git/checkouts/slint-8153123e5dffa129/6622f33/api/rs/build/lib.rs:250:21
    21: build_script_build::main
               at ./build.rs:2:5
    22: core::ops::function::FnOnce::call_once
               at /rustc/1d9c262eea411ec5230f8a4c9ba50b3647064da4/library/core/src/ops/function.rs:227:5

Let me know if there's any way I can help debugging! Sorry again that I couldn't minimize the example code; I'm about out of time for the day.

[hunger]

Can I have you as a replacement for the fuzzer I run sometimes? That keeps turning up empty handed before I run out of patience and kill it :-)