Provisional API: This reference documents current compiler behavior. Compatibility is not yet promised.
src/components/dynamic-operators.x
Dynamic operators.
Design notes
An operation with a Var operand that no protocol member resolved
lowers to the dynamic runtime. A binary operator boxes both operands
for Var.binary; a compound assignment, increment, or decrement calls
the update helper of its target’s storage, which takes the target’s
address once and stores once.
Each definition precedes the definitions that call it: the compiler settles whether a linked copy reaches a compile-time operation when the copy binds.