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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Add manuals and aliases for all five PP directives, replace the retired #LIB
page, and update compiler and shared-editor architecture notes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Describe -no-std, C_STRING literals, library function semantics and
owning string lifetimes in the manuals and contributor guidance.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Runtime check messages and the unhandled-exception message were printed
to stdout by the generated program, so `cpsc x.cps -r >out.txt` captured
them. They are now formatted with snprintf and written with write(2).
Test expectations and docs are updated accordingly.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Reuse historical runtime messages and source-line reporting for arithmetic,
array, enum, pointer and file checks while preserving anonymous exceptions.
Update the manuals and subsystem guidance to describe diagnostic output.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Update build and native-link examples, PATH version-check rules and LLVM
API guidance. Record Linux verification and retain the Windows/macOS
verification limits.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Add the TRY manual for CATCH, ENDTRY, and anonymous THROW. Update runtime
error descriptions, language links, and native linking examples; document
catch cleanup and embedded runtime integration in the architecture notes.
Verify manual generation, rendered output, relative links, and the TRY
example. Record Linux LLVM 18 validation and unverified Windows/macOS support.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Review findings (all reproduced, then fixed and re-verified):
- '^x' leaked as a raw address into any builtin context (s <- ^x printed
the variable's bytes as a C string; NOT ^x, '&', and ^x = ^x compiled).
Address-of is now rejected everywhere except a pointer-typed target.
- A whole-array variable passed the nominal gate as a value of its
ELEMENT type (s <- arrayOfSeason stored the raw data pointer; = on it
emitted invalid IR). Whole arrays are now rejected as operands and as
coercion sources; array parameters are unaffected.
- Enum values smuggled into INTEGER through array subscripts and DECLARE
bounds (a[Autumn], ARRAY[Spring:Winter]); both now go through
emitCoercedExpr like every other INTEGER context.
- An array DECLAREd inside an IF/WHILE/REPEAT/FOR body and used after the
block was a wild-pointer write (constant bounds) or a verifier dump
(runtime bounds). Arrays are now block-scoped: control-flow bodies
snapshot and restore the ArrayTable, so escape is a clean compile error.
- Duplicate parameter names silently shadowed (BYREF write-back defeated);
now a parse error. Trailing comma in parameter lists accepted; now a
parse error consistent with every other list.
- A variable/array/parameter/function could reuse a TYPE name; reserved.
- RETURN with a value inside a PROCEDURE was silently discarded (control
did not return); now an error, as is a bare RETURN in a FUNCTION.
- INPUT r.f mis-parsed into a three-error cascade; now one clear error.
- Assigning to an enum constant now says so instead of 'Unknown variable'.
Docs: ARCH/CONVENTIONS/EXTENDING/SUBSYSTEMS/PITFALLS rewritten for the
TYPE system (ABI additions, nominal-typing invariants, admission-gate
doors, array-parameter ABI, new recipes, new sharp edges); README
features/TODO updated — random files are unblocked.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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(OPENFILE/READFILE/WRITEFILE/CLOSEFILE/EOF)
Front end: OPENFILE/READFILE/WRITEFILE/CLOSEFILE plus reserved mode
keywords READ/WRITE/APPEND (RANDOM reserved with a dedicated
not-implemented error); statement nodes in new FileAST.h, parsing in new
ParserFile.cc; EOF joins the Builtins table as the 12th builtin and
CallExprAST now carries a line number for its runtime diagnostics.
Runtime: new FileHandler (StringHandler-shaped leaf) lazily synthesizes
internal __cps_file_* helper functions and a 16-slot open-file table
keyed by filename content (strcmp — STRING '=' is pointer identity).
EOF is an fgetc/ungetc peek; READFILE grows a malloc/realloc line buffer
and strips a trailing CR; fopen uses text modes so mingw-w64 line
translation works. File-free programs get byte-identical IR. All misuse
(not open, wrong mode, reopen, fopen failure, read past EOF, table full)
dies with the existing "[Fatal] line N:" pattern via a new
RuntimeCheck::emitErrorAndExit overload taking runtime printf args.
Also fixes a pre-existing ArithmeticHandler hole surfaced by adversarial
review: mixed-width integer operands (i1 BOOLEAN / i8 CHAR vs i64) now
widen via ZExt instead of emitting invalid IR, and remaining type
mismatches get a clean diagnostic; -EOF(f) and -IS_NUM(x) compile.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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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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Seven copy-pasted statement-block loops collapse into
ParseBlock(terminators); five comma-separated expression-list loops
collapse into ParseExprList(close, allowEmpty), which also fixes
"arr[1 2] <- x" being silently accepted as arr[1,2] on the statement
path. Error recovery now lives in one place: syncToStatementStart skips
to the next statement-start/block-end token, so a bad statement no
longer swallows the first token of the following good one. Drop the
dead -1000/-1001 token check in ParsePrototypeArgs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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All 11 builtins now live in one static {Name, Arity, ReturnTypeName}
table in CodeGen.cc: emitExpr checks arity against it (uniform
"Error: X expects N args" diagnostics) and getExprTypeInfo reads return
types from it, removing the duplicated hard-coded table.
LENGTH/MID/RIGHT/LEFT/LCASE/UCASE lose their lexer tokens and
ParseStringBuiltin; they parse as ordinary identifier calls exactly like
ASC/CHR/IS_NUM/NUM_TO_STR/STR_TO_NUM already did. Behavior note: these
six names are no longer reserved words.
AGENTS docs updated for the new builtin story and the batch-1 error
contract (exit codes, verifyModule, fixed descending FOR).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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ARCH.md holds the overview (pipeline, build/run, layout); details are
split into CONVENTIONS.md, EXTENDING.md, SUBSYSTEMS.md and PITFALLS.md.
All claims were verified against the source, most also empirically by
compiling and running test programs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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