fuchsia_inspect/writer/types/
string_property.rsuse crate::writer::{Inner, InnerPropertyType, InspectType, Property};
use log::error;
use std::borrow::Cow;
#[derive(Debug, PartialEq, Eq, Default)]
pub struct StringProperty {
inner: Inner<InnerPropertyType>,
}
impl<'t> Property<'t> for StringProperty {
type Type = &'t str;
fn set(&self, value: &'t str) {
if let Some(ref inner_ref) = self.inner.inner_ref() {
inner_ref
.state
.try_lock()
.and_then(|mut state| {
state.set_string_property(inner_ref.block_index, Cow::Borrowed(value))
})
.unwrap_or_else(|e| error!("Failed to set property. Error: {:?}", e));
}
}
}
impl InspectType for StringProperty {}
crate::impl_inspect_type_internal!(StringProperty);
#[cfg(test)]
mod tests {
use super::*;
use crate::writer::testing_utils::{get_state, GetBlockExt};
use crate::writer::Node;
use inspect_format::{BlockType, Buffer, PropertyFormat};
impl StringProperty {
fn load_data(&self) -> Option<String> {
let mut data_index = None;
self.get_block::<_, Buffer>(|b| data_index = Some(b.extent_index()));
self.inner.inner_ref().and_then(|inner_ref| {
inner_ref
.state
.try_lock()
.and_then(|state| state.load_string(data_index.unwrap()))
.ok()
})
}
}
#[fuchsia::test]
fn basic_string_property() {
let default = StringProperty::default();
default.set("test");
let state = get_state(4096);
let root = Node::new_root(state);
let node = root.create_child("node");
{
let property = node.create_string("property", "test");
property.get_block::<_, Buffer>(|property_block| {
assert_eq!(property_block.block_type(), Some(BlockType::BufferValue));
assert_eq!(property_block.total_length(), 0);
assert_eq!(property_block.format(), Some(PropertyFormat::StringReference));
});
assert_eq!(property.load_data().unwrap(), "test");
node.get_block::<_, inspect_format::Node>(|node_block| {
assert_eq!(node_block.child_count(), 1);
});
property.set("test-set");
property.get_block::<_, Buffer>(|property_block| {
assert_eq!(property_block.total_length(), 0);
});
assert_eq!(property.load_data().unwrap(), "test-set");
}
node.get_block::<_, inspect_format::Node>(|node_block| {
assert_eq!(node_block.child_count(), 0);
});
}
#[fuchsia::test]
fn string_property_interning() {
let default = StringProperty::default();
default.set("test");
let state = get_state(4096);
let root = Node::new_root(state);
let node = root.create_child("node");
let property1 = node.create_string("property", "test");
let mut name_idx_1 = None;
let mut payload_idx_1 = None;
property1.get_block::<_, Buffer>(|property_block| {
name_idx_1 = Some(property_block.name_index());
payload_idx_1 = Some(property_block.extent_index());
});
let property2 = node.create_string("test", "property");
let mut name_idx_2 = None;
let mut payload_idx_2 = None;
property2.get_block::<_, Buffer>(|property_block| {
name_idx_2 = Some(property_block.name_index());
payload_idx_2 = Some(property_block.extent_index());
});
assert_eq!(property1.load_data().unwrap(), "test");
assert_eq!(property2.load_data().unwrap(), "property");
assert_eq!(name_idx_1, payload_idx_2);
assert_eq!(name_idx_2, payload_idx_1);
}
}