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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 FUNCTION and PROCEDURE body tail_ov4
ParseFunctionBody() scopes the prototype's pack parameters, parses the body up to ENDFUNCTION/ENDPROCEDURE, reports the same "expected ..." diagnostic and builds the FunctionDefAST for both declaration forms. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22refactor(parser): share call-argument, result-access and type-token checks_ov4
Add ParseOptionalCallArgs() for member calls and NEW, diagnoseResultAccess() for the duplicated "access on a function result" diagnostic, and isBuiltinTypeToken() for the builtin type keyword list used by template-call lookahead, cast detection and CASE label scanning. Co-Authored-By: Claude Opus 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(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): support global binary operator overloads_ov4
Resolve exact operand types and preserve declared operator return types. Reject implicit STRING to BOOLEAN conversion at typed expression boundaries. 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(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>
2026-10-16fix(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>
2026-10-14feat(parser): add explicit parenthesized type casts_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>
2026-10-13Refactor record fields to preserve visibility and share parsing_ov4
Co-Authored-By: Claude Fable 5.1 <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
2026-02-02Added STRING_ov4
2026-02-02Added logical operators_ov4
2026-01-30Added BYREF and BYVAL_ov4
2026-01-30Added FUNCTION and PROCEDURE_ov4
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