Brummel
96db54d15d
Iteration-discipline milestone, 1 of 3. Adds named loop + recur as strictly-additive first-class AST nodes: parse/print/prose/serde/ round-trip/schema lockstep, typecheck (binder typing + recur arity/type unification via loop_stack threaded as mut.2's mut_scope_stack; recur-tail-position via verify_loop_body), codegen (loop-header + one phi per binder; recur back-edge br with a NEW parallel block_terminated setter; lambda-boundary loop_frames save/restore). Four Recur* CheckError variants. Strictly additive: zero deletions touch tail-app/tail-do or the seven existing block_terminated sites — this is what makes the destructive it.3 safe. recur synth = fresh metavar (resolves the plan's flagged Type::unit() risk). loop_counter->55, loop_in_lambda->49, four negatives fire, tail-app byte-identical, cargo test --workspace green. Specfda9b78, plan7381a42.
61 lines
1.7 KiB
JSON
61 lines
1.7 KiB
JSON
{
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"schema": "ailang/v0",
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"name": "test_recur_not_in_tail_position",
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"imports": [],
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"defs": [
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{
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"kind": "fn",
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"name": "main",
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"type": {
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"k": "fn",
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"params": [],
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"ret": {
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"k": "con",
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"name": "Int"
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},
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"effects": []
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},
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"params": [],
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"doc": "Iter it.1: recur in the lhs of a seq (non-tail) fires recur-not-in-tail-position.",
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"body": {
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"t": "loop",
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"binders": [
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{
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"name": "i",
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"type": {
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"k": "con",
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"name": "Int"
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},
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"init": {
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"t": "lit",
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"lit": {
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"kind": "int",
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"value": 0
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}
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}
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}
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],
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"body": {
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"t": "seq",
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"lhs": {
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"t": "recur",
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"args": [
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{
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"t": "var",
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"name": "i"
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}
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]
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},
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"rhs": {
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"t": "lit",
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"lit": {
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"kind": "int",
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"value": 0
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}
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}
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}
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}
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}
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]
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}
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