Enum ExecutionConstraint 

pub enum ExecutionConstraint {
    PushOrder {
        parent: PushRef,
        child: PushRef,
    },
    PushBeforeRetarget {
        base: PushRef,
        pr: UpdateRef,
    },
    RetargetBeforePush {
        pr: UpdateRef,
        old_base: PushRef,
    },
    PushBeforeCreate {
        push: PushRef,
        create: CreateRef,
    },
    CreateOrder {
        parent: CreateRef,
        child: CreateRef,
    },
}

Dependency constraint between execution operations.

Each variant encodes a semantic relationship between operations. Invalid pairings (e.g., CreatePr → Push) are unrepresentable at the type level.

Constraints may reference operations that don’t exist in the current plan (e.g., a bookmark that’s already synced has no Push node). Resolution returns None for such constraints, which is expected behavior.

Variants

PushOrder

Push parent branch before child branch. Ensures commits are pushed in stack order (ancestors before descendants).

Fields

parent: PushRef

Parent bookmark (pushed first)

child: PushRef

Child bookmark (pushed second)

PushBeforeRetarget

Push new base branch before retargeting PR to it. Can’t retarget a PR to a branch that doesn’t exist on remote yet.

Fields

base: PushRef

Base branch to push

pr: UpdateRef

PR to retarget

RetargetBeforePush

Retarget PR before pushing its old base (swap scenario). When stack order changes and a PR’s current base moves “below” it, must retarget first to avoid platform rejection.

Fields

pr: UpdateRef

PR to retarget first

old_base: PushRef

Old base to push after

PushBeforeCreate

Push branch before creating PR for it. Branch must exist on remote before PR creation.

Fields

push: PushRef

Branch to push

create: CreateRef

PR to create

CreateOrder

Create parent PR before child PR. Parent PR must exist so stack comments can reference its number/URL.

Fields

parent: CreateRef

Parent PR (created first)

child: CreateRef

Child PR (created second)

Trait Implementations

impl Clone for ExecutionConstraint

fn clone(&self) -> ExecutionConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecutionConstraint

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

Formats the value using the given formatter.

impl Display for ExecutionConstraint

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

Formats the value using the given formatter.