Graeme Geldenhuys c371272811 Implement interface type declarations, class implements, and interface dispatch ... Parser: TInterfaceTypeDef AST node; ParseInterfaceDef; ParseClassDef extended to parse comma-separated implements list (first name = parent class, rest = interfaces); ParseMethodDecl body remains optional. Symbol table: tyInterface added to TTypeKind; TInterfaceTypeDesc with unsorted (declaration-order) method list for correct itab slot indexing; FImplements non-owning list on TRecordTypeDesc tracks class→interface pairs; TObject pre-registered as built-in root class. Semantic: AnalyseTypeDecls handles TInterfaceTypeDef (register, inherit parent methods); verifies class implements all interface methods; CheckTypesMatch extended for class→interface assignment; AnalyseMethodCall handles tyInterface object vars via itab dispatch path; TAssignment carries ResolvedLhsType. Codegen: EmitInterfaceDefs emits $typeinfo_IFoo and $itab_TFoo_IFoo data blocks; EmitVarAllocs allocates two-slot fat pointer (_obj + _itab) for interface vars; EmitAssignment stores both obj pointer and itab address on interface assignment; EmitMethodCall dispatches via itab on tyInterface receiver. 15 new tests, 484 total, 0 failures.		2026-04-21 18:24:55 +01:00
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design.adoc	Implement interface type declarations, class implements, and interface dispatch	2026-04-21 18:24:55 +01:00
grammar.ebnf	Add class instance methods (procedure, inline body, Self, method calls)	2026-04-20 19:42:09 +01:00