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Author SHA1 Message Date
Graeme Geldenhuys a561525ebd Add symbol table with scope nesting and built-in types 
TSymbolTable manages a scope stack with case-insensitive lookup. Each
TScope holds a sorted TStringList (names → TSymbol) and chains to its
parent for identifier resolution. Built-in primitives (Integer, Int64,
UInt32, Byte, Boolean, string) and I/O procedures (Write, WriteLn) are
pre-registered in the global scope. 29 FPCUnit tests, all passing.
 2026-04-20 17:52:09 +01:00
Graeme Geldenhuys 95e1ea58af Add FPC-compatible CLI mode to Blaise compiler 
Blaise can now act as a drop-in FPC replacement for PasBuild when
invoked via `pasbuild compile --fpc /path/to/blaise`.

- Detects FPC-style invocation (single-dash flags vs. native double-dash)
- Handles -iV / -iTP / -iTO probe queries PasBuild uses before compiling
- Maps -FE<dir>, -o<name> to output path; silently ignores -Fu, -FU,
  -Mobjfpc, -O<n>, -g, -gl, -CX and unknown single-dash flags
- Native --source / --output / --emit-ir mode is fully preserved
 2026-04-20 17:37:14 +01:00
Graeme Geldenhuys 25de8be212 Fix compilation errors; vendor QBE 1.2; end-to-end Hello World works 
Fix TProgram.Uses reserved-word clash (renamed to UsedUnits), nested
brace-comment in uParser.pas, and missing uAST in Blaise.pas uses clause.

Vendor QBE 1.2 source in vendor/qbe/ (built locally with make; binary
excluded via .gitignore). End-to-end pipeline confirmed: Blaise compiles
Hello World and Calc (6*7=42) to native x86_64 Linux binaries.

71/71 FPCUnit tests passing.
 2026-04-20 16:38:57 +01:00
Graeme Geldenhuys 3fce5f86de Phase 1 bootstrap: Blaise compiler skeleton 
Renames the project from 'Clean Pascal' to Blaise (after Blaise Pascal).
Adds the Phase 1 compiler pipeline with TDD test suite:

- uPasTokeniser: general Pascal tokeniser (ported from fpGUI IDE)
- uLexer: compiler-specific adapter — filters whitespace/comments,
  maps to TTokenKind, unescapes string literals
- uAST: typed AST node hierarchy (TProgram, TBlock, TBinaryExpr, etc.)
- uParser: recursive-descent parser for the Phase 1 BNF grammar
- uCodeGenQBE: QBE IR emitter — WriteLn/Write built-ins, integer
  variables, arithmetic, string literals
- Blaise.pas: compiler driver — parses flags, shells to qbe+cc
- FPCUnit test suites for lexer, parser, and code generator
 2026-04-20 15:35:50 +01:00
Graeme Geldenhuys fd79a7db98 Initial project scaffold 
PasBuild multi-module layout with three modules: compiler (application),
rtl (library), and tools/migration-analyser (application). Includes root
aggregator project.xml, debug/release build profiles, BSD 3-Clause licence,
README, .gitignore, and design document. QBE vendored as the Phase 1
backend. Bootstrap requires FPC 3.2.2.
 2026-04-20 14:22:10 +01:00