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2026-10-30feat(types): support implicit single-argument constructors_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22fix(parser): report missing THEN and ')' on the line that needs them_ov4
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-22refactor(parser): share the designator degrade rule for INPUT and expressions_ov4
INPUT targets and identifier expressions now build their legacy VariableExprAST/ArrayAccessExprAST/DesignatorExprAST node through makeDesignator(). INPUT still sets the target line explicitly. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22refactor(parser): extract INCLUDE/GLOBAL, DELETE, INPUT and OUTPUT parsing_ov4
Move the self-contained arms of ParseStatementImpl into ParseIncludeOrGlobal, ParseDeleteStmt, ParseInputStmt and ParseOutputStmt without changing their bodies. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22refactor(parser): share callee-name parsing and make operator out-param optional_ov4
ParseOperatorName() takes an optional int * so callers that ignore the operator token no longer declare a dummy. The identical identifier-or- OPERATOR prologues of assignment, identifier-expression and CALL parsing move into ParseCalleeName(). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22refactor(parser): remove dead token return, precedence check and includes_ov4
getNextToken() now returns void since no caller reads its result, and GetTokPrecedence() does a single map lookup without the unreachable non-positive precedence check. Unused <cstdio>, <set> and FunctionAST.h includes are dropped. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-21feat(diagnostics): print source diagnostics in gcc file:line: layout_ov4
Lexer, parser, driver and codegen diagnostics now read "<path>:<line>: error: <message>" instead of "error: <message> at line N in <path>". The path is always printed as given on the command line. Call sites pass the bare message to cps::sourceError/sourceWarning, which carry printf format checking; reportError routes through the same helper. The suite iii harness parses the new layout and matches the reason against the message only. iii/template-class-pack-field passed only because its reason regex matched the case path, so it is now case-insensitive. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-21feat(parser): parse TEMPLATE declarations, template ids and parameter packs_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-18feat(classes): add copy constructors and statement-scoped temporaries_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-18feat(operators): add member and unary overloads with explicit calls_ov4
Select member and global candidates together, enforce private access, and reuse argument marshalling. Materialize temporary receivers for chaining and register them for the existing object cleanup mechanism. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17feat(parser): parse EXTERN "C" declarations and INCLUDE_OBJ_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17feat(parser): parse OVERLOAD prefix on FUNCTION and PROCEDURE_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17feat(parser): parse INCLUDE and GLOBAL blocks_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17refactor(diag): file-qualified diagnostic locations_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17feat(classes): parse DELETE destructor methods and DELETE statement_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17feat(classes): allocate objects with NEW and rebind named class variables_ov4
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-17feat(classes): support ordinary member methods and this references_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-17feat(calls): support standalone calls and void pointer casts_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-17feat(input): support array elements and member targets_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-16fix(compiler): correct CIE semantics and diagnostic locations_ov4
Use standard WHILE headers and default-public class fields, resolve pseudocode identifiers without case sensitivity, and check signed i64 literal boundaries before conversion. Preserve source locations across recursive emission and function diagnostics. Add 22 regression cases and update compiler examples and documentation. Validated all 69 CTest entries with the original Linux Actions seed and verified the release package's embedded, native and IR output paths.
2026-10-16feat(constants): implement literal constants with lexical scope_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-16feat(control-flow): implement ordered CASE OF matching_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-16refactor(parser): split expression and control flow parsing_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-14feat(parser): add explicit parenthesized type casts_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-14feat(types): add native C scalar types and imported aliases_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-13feat(compiler)!: add try-catch with C++ stack unwinding_ov4
Add TRY/CATCH/ENDTRY and anonymous THROW statements. Use LLVM exception handling and the C++ ABI to propagate exceptions across function calls, clean up catch state, and handle uncaught exceptions at the program boundary. Register exception runtime symbols for the statically linked embedded runner. Verify runtime checks, nested catches, returns, loops, and invalid syntax with smoke programs; exercise unwinding with MCJIT, lli, and native binaries. BREAKING CHANGE: Runtime check failures now throw anonymous exceptions and print only a generic message when uncaught. Native binaries require linking the C++ runtime. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-13Add record-derived classes with explicit field visibility_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-13fix: distinguish compiler errors and report compilation termination_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-13feat: support comma-separated OUTPUT expressions_ov4
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-07-26fix: close type-safety holes found by adversarial review; update docs_ov4
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>
2026-07-26feat: TYPE-system front end — tokens, designators, ParamDecl grammar_ov4
- Reserve TYPE/ENDTYPE/SET/DEFINE (-600 token block); SET/DEFINE parse to dedicated not-implemented errors (RANDOM precedent). - New TypeAST.h: enum/pointer/record decl nodes, designator chain (DesignatorExprAST + Index/Field/Deref accessors), AddrOfExprAST, DesignatorAssignStmtAST. Bare-name and single-index shapes degrade to their legacy nodes, so existing programs produce identical ASTs. - ParserType.cc: TYPE declarations (top-level only, enforced via a ParseBlock depth counter), DECLARE-only record bodies with local field-level error recovery. - Postfix [ ] . ^ chain in ParseIdentifierExpr; prefix ^ (address-of, designator operand only) in ParseUnary; assignment targets rebuilt on the same suffix parser. - Parameters: ParamDecl{name, type, mode, array rank/bounds} replaces the (name, type, byref) tuple. Pass mode is sticky across parameters and BYREF is rejected in FUNCTIONs, both per guide §8.3 (the old per-param reset made the guide's own SWAP example pass Y by value). ARRAY OF T / ARRAY[l:u,...] OF T parameter syntax parses; codegen rejects it until the parameter-passing phase lands. - CodeGen stubs report clear not-implemented errors for the new nodes so nothing is silently ignored. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-26feat: implement CIE 9.1 text file handling ↵_ov4
(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>
2026-07-26refactor: extract ParseBlock/ParseExprList, resync-based error recovery_ov4
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>
2026-07-26refactor: single builtin registry, retire keyword route for builtins_ov4
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>
2026-07-26refactor: batch 1 - correctness and error contract_ov4
- 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>
2026-03-27feat: generalize typed array support_ov4
2026-03-03Added all built-in functions_ov4
2026-02-02Added STRING_ov4
2026-02-02Added logical operators_ov4
2026-02-02Added REAL and BOOLEAN types, DIV and MOD operators_ov4
2026-01-30Added FUNCTION and PROCEDURE_ov4
2026-01-30Added runtime check for array index and divisionov-4
2026-01-29Added arrayov-4
2026-01-29Added loop statements, FOR, WHILE and REPEATov-4
2026-01-29Added IF statementov-4
2026-01-29Added half way of IF statementov-4
2026-01-29Added binary operations +-*/ov-4
2026-01-29Added INPUT, OUTPUT and DECLAREov-4