Enum finite_wasm::gas::InstrumentationKind
source · pub enum InstrumentationKind {
Pure,
Unreachable,
PreControlFlow,
PostControlFlow,
Aggregate,
}Variants§
Pure
This instrumentation point precedes an instruction that is largely uninteresting for the purposes of gas analysis, besides its inherent cost.
These do not participate in branching, trapping or any other kind of data flow. Simple operations such as an addition or subtraction will typically fall under this kind.
Unreachable
This instrumentation point is unreachable (usually because the stack is polymorphic at this point.)
For example,
block
br 0 ;; the stack becomes polymorphic
;; this instrumentation point is unreachable
i32.add (i32.const 0) (i32.const 1)
;; this instrumentation point is still unreachable
end
;; this instrumentation point is reachable again
PreControlFlow
This instrumentation point precedes a branch target, branch, side effect, potential trap or similar construct.
As a result none of the succeeding instrumentation points may be merged up into this instrumentation point, as the gas may be observed by the instruction that is going to execute after this instruction.
PostControlFlow
This instrumentation point succeeds a branch target, branch, side effect, potential trap or similar construct.
As a result this instrumentation point may not be merged up into the preceding instrumentation points (but succeeding instrumentation points may still be merged into this).
Aggregate
This instrumentation point precedes an aggregate operation.
Instructions such as memory.fill cause this categorization. The amount of work they do
depends on the operands.
TODO: a variant for each such instruction may be warranted?
Trait Implementations§
source§impl Clone for InstrumentationKind
impl Clone for InstrumentationKind
source§fn clone(&self) -> InstrumentationKind
fn clone(&self) -> InstrumentationKind
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moresource§impl Debug for InstrumentationKind
impl Debug for InstrumentationKind
impl Copy for InstrumentationKind
Auto Trait Implementations§
impl RefUnwindSafe for InstrumentationKind
impl Send for InstrumentationKind
impl Sync for InstrumentationKind
impl Unpin for InstrumentationKind
impl UnwindSafe for InstrumentationKind
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T: ?Sized,
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T: ?Sized,
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Self: Sized,
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Self: Sized,
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R: 'a,
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R: 'a,
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Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
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&'a mut self,
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) -> Rwhere
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> Rwhere
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
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Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> Rwhere
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U: 'a + ?Sized,
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