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StackSection

revmc_codegen::bytecode::passes::sections

Struct StackSection 

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pub(crate) struct StackSection {
    pub(crate) inputs: u16,
    pub(crate) max_growth: i16,
}
Expand description

A stack section tracks stack height requirements for a sequence of instructions.

Stack sections end at instructions that require gasleft, branching instructions, or suspending instructions. This keeps stack failures after dynamic-gas and host-effect instructions from being hoisted ahead of those instructions.

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§inputs: u16

The stack height required to execute the section.

§max_growth: i16

The maximum stack height growth relative to the stack height at section start.

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impl StackSection

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pub(crate) fn is_empty(self) -> bool

Returns true if the section is empty.

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pub(crate) fn from_stack_io(iter: impl IntoIterator<Item = (u8, u8)>) -> Self

Compute a stack section from an iterator of (inputs, outputs) pairs.

Trait Implementations§

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impl Clone for StackSection

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fn clone(&self) -> StackSection

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for StackSection

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impl Debug for StackSection

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for StackSection

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fn default() -> StackSection

Returns the “default value” for a type. Read more
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impl Eq for StackSection

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impl PartialEq for StackSection

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fn eq(&self, other: &StackSection) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for StackSection

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Gets the TypeId of self. Read more
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes