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//! ink! event 2.0 IR.
use ra_ap_syntax::ast;
use crate::Topic;
/// An ink! event 2.0.
///
/// Ref: <https://github.com/paritytech/ink/pull/1827>
#[ink_analyzer_macro::entity(macro_kind = Event)]
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct EventV2 {
// ASTNode type.
ast: ast::Struct,
// ink! topics.
topics: Vec<Topic>,
}
impl_ast_type_trait!(EventV2, IsInkStruct);
impl_is_ink_event!(EventV2);
impl EventV2 {
impl_pub_ink_arg_getter!(anonymous_arg, Anonymous, anonymous);
impl_pub_ink_arg_getter!(signature_arg, SignatureTopic, signature_topic);
impl_pub_ink_arg_getter!(name_arg, Name, name);
}
#[cfg(test)]
mod tests {
use super::*;
use crate::test_utils::*;
use crate::traits::{InkEntity, IsInkStruct};
use test_utils::quote_as_str;
#[test]
fn cast_works() {
for (code, is_anonymous, signature, name, expected_n_topics) in [
(
quote_as_str! {
#[ink::event]
pub struct MyEvent {}
},
false,
None,
None,
0,
),
(
quote_as_str! {
#[ink::event(anonymous)]
pub struct MyEvent {}
},
true,
None,
None,
0,
),
(
quote_as_str! {
#[ink::event(signature_topic = "1111111111111111111111111111111111111111111111111111111111111111")]
pub struct MyEvent {}
},
false,
Some("1111111111111111111111111111111111111111111111111111111111111111"),
None,
0,
),
(
quote_as_str! {
#[ink::event(name = "Event")]
pub struct MyEvent {}
},
false,
None,
Some("Event"),
0,
),
(
quote_as_str! {
#[ink::event]
pub struct MyEvent {
#[ink(topic)]
value: i32,
}
},
false,
None,
None,
1,
),
(
quote_as_str! {
#[ink::event]
pub struct MyEvent {
#[ink(topic)]
value: i32,
#[ink(topic)]
value2: bool,
}
},
false,
None,
None,
2,
),
] {
let node = parse_first_syntax_node(code);
let event = EventV2::cast(node).unwrap();
// `anonymous` argument exists.
assert_eq!(event.anonymous_arg().is_some(), is_anonymous);
// `signature_topic` argument exists.
assert_eq!(event.signature_arg().is_some(), signature.is_some());
// `signature_topic` argument value.
assert_eq!(
event
.signature_arg()
.and_then(|arg| arg.value()?.as_string())
.as_deref(),
signature
);
// `name` argument value.
assert_eq!(
event
.name_arg()
.and_then(|arg| arg.value()?.as_string())
.as_deref(),
name
);
// Checks the expected number of topics.
assert_eq!(event.topics().len(), expected_n_topics);
// `struct` item exists.
assert!(event.struct_item().is_some());
}
}
}