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Confirmed by a 17-agent review pass over the refactor diff (12 findings
verified against the code and reproduced end-to-end):
- marshalCallArgs: BYREF arguments must match the declared parameter
type exactly (was: silent bit-reinterpretation, e.g. REAL passed to
BYREF INTEGER printed garbage with exit 0); whole-array arguments are
rejected (was: callee assignment smashed the array data pointer ->
runtime SIGSEGV)
- Null guards for CHR/LCASE/UCASE/IS_NUM/NUM_TO_STR/STR_TO_NUM/ASC
argument emission (was: compiler SIGSEGV on e.g. CHR(undeclared)),
matching the guards MID/RIGHT/LEFT already had
- ParseReturnStmt: propagate expression-parse failure (was: diagnostic
printed but exit 0) and recognize bare RETURN before
ENDWHILE/UNTIL/NEXT (was: bogus diagnostic on legal early return)
- emitPrototype rejects FUNCTION/PROCEDURE names that collide with
runtime/libc symbols (was: FUNCTION strlen silently hijacked the
string runtime; arity mismatch crashed createArgumentAllocas) or with
builtins (was: silently shadowed); conflicting redefinitions keep the
first signature
- FOR STEP is evaluated exactly once, before the loop (was: once per
iteration; the runtime-direction refactor had moved it to N+1)
- RETURN values are coerced to the declared return type via the
signature table (RETURN n in a RETURNS REAL function now compiles)
- '&' coerces its operands to STRING (CHAR/number operands work);
OUTPUT of a PROCEDURE call reports a clean error
AGENTS docs updated to match. All positive samples remain byte-identical
to the pre-refactor baseline.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Integer/Real/Boolean/CharHandler carried only five one-line LLVM API
wrappers (now inlined at their call sites in CodeGen.cc) plus dead
emitDeclare methods that violated the documented two-table lock-step
invariant. StringHandler::emitDeclare (also dead) and its NamedValues
reference go too.
With the dead writers gone, NamedValues held no information not already
in Symbols[].Storage, so the parallel map is removed: getNamedValue
reads Symbols, ArrayHandler/FunctionGen take one table, and function
bodies save/restore a single map. Behavior unchanged.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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emitPrototype now records each FUNCTION/PROCEDURE's pseudocode signature
(FuncSig: return type + per-param type/BYREF flag). CodeGen::
marshalCallArgs replaces the two verbatim-duplicated marshalling blocks
and dispatches on the declared signature instead of inferring BYREF from
pointer-typed LLVM params: BYVAL STRING params now receive the string
data pointer (no more runtime garbage), and BYVAL args are coerced to
the declared type (INTEGER->REAL args no longer emit invalid IR).
Top-level prototypes are pre-registered in compile(), so calls may
precede definitions; GenerateCall no longer fabricates i64 externs for
unknown names - an unregistered callee is a compile error. OUTPUT
reports an error when it cannot infer the expression type instead of
printing with the INTEGER format.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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- MID/RIGHT/LEFT integer args now coerced at call sites (RIGHT(s, n/2)
no longer emits invalid IR); drop emitLeft's private conversion
- FOR loop direction decided at run time via select on STEP sign;
descending FOR works, STEP evaluated once per iteration
- ArrayHandler: extract emitCheckedIndices/loadElement; index count is
validated before emission, fixing a compiler-crash (vector OOB UB) on
OUTPUT with too many indices
- Error contract: Lexer/Parser/CodeGen track errors; all silent failure
paths now print Error: diagnostics with line numbers; unterminated
char literal no longer truncates the rest of the program; module is
verified with verifyModule; driver exits non-zero on any error
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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