fuchsia_inspect/writer/types/
bool_property.rs

1// Copyright 2021 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use crate::writer::{Inner, InnerValueType, InspectType, Property};
6
7/// Inspect API Bool Property data type.
8///
9/// NOTE: do not rely on PartialEq implementation for true comparison.
10/// Instead leverage the reader.
11///
12/// NOTE: Operations on a Default value are no-ops.
13#[derive(Debug, PartialEq, Eq, Default)]
14pub struct BoolProperty {
15    inner: Inner<InnerValueType>,
16}
17
18impl Property<'_> for BoolProperty {
19    type Type = bool;
20
21    fn set(&self, value: bool) {
22        if let Some(ref inner_ref) = self.inner.inner_ref() {
23            if let Ok(mut state) = inner_ref.state.try_lock() {
24                state.set_bool(inner_ref.block_index, value);
25            }
26        }
27    }
28}
29
30impl InspectType for BoolProperty {}
31
32crate::impl_inspect_type_internal!(BoolProperty);
33
34#[cfg(test)]
35mod tests {
36    use super::*;
37    use crate::writer::testing_utils::{get_state, GetBlockExt};
38    use crate::writer::Node;
39    use inspect_format::{BlockType, Bool};
40
41    #[fuchsia::test]
42    fn bool_property() {
43        // Create and use a default value.
44        let default = BoolProperty::default();
45        default.set(true);
46
47        let state = get_state(4096);
48        let root = Node::new_root(state);
49        let node = root.create_child("node");
50        {
51            let property = node.create_bool("property", true);
52            property.get_block::<_, Bool>(|block| {
53                assert_eq!(block.block_type(), Some(BlockType::BoolValue));
54                assert!(block.value());
55            });
56            node.get_block::<_, inspect_format::Node>(|block| {
57                assert_eq!(block.child_count(), 1);
58            });
59
60            property.set(false);
61            property.get_block::<_, Bool>(|block| {
62                assert!(!block.value());
63            });
64        }
65        node.get_block::<_, inspect_format::Node>(|block| {
66            assert_eq!(block.child_count(), 0);
67        });
68    }
69}
fuchsia_inspect/writer/types/bool_property.rs

fuchsia_inspect/writer/types/
bool_property.rs
