giles
d9979eaf6c
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Test, Build, and Deploy / test-build-deploy (push) Failing after 27s
<- added to op-table at level 1 (same as :=). Eval short-circuits on
<- to mutate the lhs's field via host SX dict-set!. The lhs must be a
:field expression; otherwise raises.
Tested:
let r = { x = 1; y = 2 } in r.x <- 5; r.x (5)
let r = { x = 0 } in for i = 1 to 5 do r.x <- r.x + i done; r.x (15)
let r = { name = ...; age = 30 } in r.name <- "Alice"; r.name
The 'mutable' keyword in record type decls is parsed-and-discarded;
runtime semantics: every field is mutable. Phase 2 closes this gap
without changing the dict-based record representation.