Adopts the Swift/LLVM model: Apache License 2.0 with the Runtime Library
Exception text used verbatim by the Swift project. SPDX identifier:
Apache-2.0 WITH Swift-exception.
Apache 2.0 brings an explicit patent grant and patent-retaliation clause
that BSD-3 lacks. The Runtime Library Exception ensures binaries
produced by the Blaise compiler do not inherit attribution obligations
from the linked-in RTL.
* LICENSE — full Apache 2.0 + RLE text (replaces the deleted LICENCE).
* NOTICE — project header plus QBE attribution (MIT, vendored).
* docs/language-rationale.adoc — new Project Governance section
capturing the decision, alternatives considered, and rationale.
* SPDX headers updated across all .pas, .pp, .inc, .c source files,
build scripts, PasBuild plugins, and the Makefile.
* project.xml license field updated.
* tools/migrate_full.py HEADER template updated so generated
self-hosting source carries the new licence.
Symbol table:
- Added tyClass kind and NewClassType factory; TRecordTypeDesc now
accepts an optional kind parameter so records and classes share the
same descriptor with distinct semantics.
Semantic analyser:
- AnalyseTypeDecls runs before PushScope so type symbols land in global
scope and survive PopScope.
- Handles TRecordTypeDef and TClassTypeDef; sets IsConstructorCall on
TypeName.Create expressions and IsClassAccess on class-variable field
access and assignment nodes.
Code generator (QBE IR):
- Class variables: 8-byte pointer slot, zeroed on entry.
- Constructor calls: malloc(sizeof fields), store pointer.
- Class field access/write: load pointer, add field offset, load/store.
- ARC string assignment: AddRef new value, Release old value, then store.
- Block exit: Release every string variable in scope (EmitStringCleanup).
Lexer / Parser / AST:
- Added tkClass keyword and ParseClassDef; FieldDecl parsing refactored
into ParseFieldDecl(AFields) shared by both record and class.
- AST gains TClassTypeDef, and IsConstructorCall/IsClassAccess flags on
TFieldAccessExpr and TFieldAssignment.
RTL:
- blaise_arc.c: Phase 2 no-op stubs for _StringAddRef / _StringRelease.
- rtl/Makefile: builds blaise_rtl.a; `make install` copies it next to
the compiler binary for automatic discovery by FindRTL.
- Blaise.pas driver: FindRTL checks BLAISE_RTL env var then binary dir;
links the RTL archive when present.
Tests:
- 180 unit tests (records ×23, classes ×22, ARC ×9, codegen ×9, …).
- 4 end-to-end integration tests in tests/integration/test_arc_strings.sh
covering string assignment, two-var cleanup, reassignment cycle, and
empty-program linkage.
Docs:
- design.adoc updated with Phase 2 implementation status table.
- docs/grammar.ebnf: new authoritative EBNF grammar for the Blaise
language as implemented, including ARC semantic annotations.
