Struct wasmer_compiler_singlepass::common_decl::MachineStateDiff

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pub struct MachineStateDiff {
    pub last: Option<usize>,
    pub stack_push: Vec<MachineValue>,
    pub stack_pop: usize,
    pub reg_diff: Vec<(RegisterIndex, MachineValue)>,
    pub prev_frame_diff: BTreeMap<usize, Option<MachineValue>>,
    pub wasm_stack_push: Vec<WasmAbstractValue>,
    pub wasm_stack_pop: usize,
    pub wasm_inst_offset: usize,
}
Expand description

A diff of two MachineStates.

A MachineStateDiff can only be applied after the MachineStateDiff its last field points to is already applied.

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§last: Option<usize>

Link to the previous diff this diff is based on, or None if this is the first diff.

§stack_push: Vec<MachineValue>

What values are pushed onto the stack?

§stack_pop: usize

How many values are popped from the stack?

§reg_diff: Vec<(RegisterIndex, MachineValue)>

Register diff.

§prev_frame_diff: BTreeMap<usize, Option<MachineValue>>

Changes in the previous frame’s data.

§wasm_stack_push: Vec<WasmAbstractValue>

Values pushed to the Wasm stack.

§wasm_stack_pop: usize

§of values popped from the Wasm stack.

§wasm_inst_offset: usize

Wasm instruction offset.

Implementations§

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impl MachineStateDiff

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pub fn _build_state(&self, m: &FunctionStateMap) -> MachineState

Creates a MachineState from the given &FunctionStateMap.

Trait Implementations§

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impl Clone for MachineStateDiff

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fn clone(&self) -> MachineStateDiff

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for MachineStateDiff

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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 MachineStateDiff

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fn default() -> MachineStateDiff

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

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