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Feat events #46
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Feat events #46
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d45cee1
feat(if-else): add if-else access control
HansBhatia 4ca2eac
fix(if_else): CI issue
HansBhatia 0782ff7
fix: add pr review changes
HansBhatia 5f8ebc3
fix: pr review comments
HansBhatia 81b840f
docs: add documentation to contract
HansBhatia 8e824f3
docs(src): add readme file
HansBhatia d172d3f
docs(src): add contract desc
HansBhatia a5cd1b9
fix: terminology & add to SUMMARY
enitrat 2303874
feat(events): add events
HansBhatia 9f85dda
chore: add to summary
HansBhatia 809130d
chore: add type
HansBhatia 21032bb
Merge branch 'main' into feat-events
HansBhatia 66be22b
fix: pr review changes
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target |
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[package] | ||
name = "counter" | ||
version = "0.1.0" | ||
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[dependencies] | ||
starknet = "1.1.0" | ||
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[[target.starknet-contract]] |
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#[contract] | ||
mod SimpleCounter { | ||
struct Storage { | ||
// Counter value | ||
_counter: u256, | ||
} | ||
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#[event] | ||
// Increment event - emitted when the counter is incremented. | ||
fn Increment(counterVal: u256) {} | ||
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#[constructor] | ||
fn constructor() {} | ||
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#[external] | ||
fn increment() { | ||
let mut counter: u256 = _counter::read(); | ||
counter += 1; | ||
_counter::write(counter); | ||
// Emit event | ||
Increment(counter); | ||
} | ||
} |
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mod counter; |
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# Events | ||
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An event is defined as function with the #[event] attribute. The parameters of the function correspond to data that will be emitted. An event is to be logged for easy and fast access to querying the data at a later time. | ||
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Here's a simple example of a contract using events that emit an event each time a counter is incremented by the "increment" function: | ||
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```rust | ||
{{#include ../listings/ch00-introduction/events/src/counter.cairo}} | ||
``` |
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@enitrat when does the new syntactic update come out?
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With 0.12