RTL custom interface types as records

This commit is contained in:
Michael Schimmel
2025-12-11 14:22:09 +01:00
parent 3ed5a4011f
commit 18dde168fd
13 changed files with 918 additions and 84 deletions
File diff suppressed because one or more lines are too long
+2 -1
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@@ -36,7 +36,8 @@ uses
Myc.Fmx.AstEditor.Handlers.Lists in '..\Src\AST\Myc.Fmx.AstEditor.Handlers.Lists.pas',
Myc.Fmx.AstEditor.Handlers.Primitives in '..\Src\AST\Myc.Fmx.AstEditor.Handlers.Primitives.pas',
Myc.Fmx.AstEditor.Handlers.Control in '..\Src\AST\Myc.Fmx.AstEditor.Handlers.Control.pas',
Myc.Fmx.AstEditor.Handlers.Data in '..\Src\AST\Myc.Fmx.AstEditor.Handlers.Data.pas';
Myc.Fmx.AstEditor.Handlers.Data in '..\Src\AST\Myc.Fmx.AstEditor.Handlers.Data.pas',
Myc.Ast.RTL.TypeRegistry in '..\Src\AST\Myc.Ast.RTL.TypeRegistry.pas';
{$R *.res}
+1
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@@ -167,6 +167,7 @@
<DCCReference Include="..\Src\AST\Myc.Fmx.AstEditor.Handlers.Primitives.pas"/>
<DCCReference Include="..\Src\AST\Myc.Fmx.AstEditor.Handlers.Control.pas"/>
<DCCReference Include="..\Src\AST\Myc.Fmx.AstEditor.Handlers.Data.pas"/>
<DCCReference Include="..\Src\AST\Myc.Ast.RTL.TypeRegistry.pas"/>
<BuildConfiguration Include="Base">
<Key>Base</Key>
</BuildConfiguration>
+3 -3
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@@ -8,9 +8,9 @@ uses
System.Generics.Collections,
Myc.Data.Scalar,
Myc.Data.Value,
Myc.Ast.Nodes, // Provides EAstException
Myc.Ast.Scope,
Myc.Data.Keyword;
Myc.Data.Keyword,
Myc.Ast.Nodes,
Myc.Ast.Scope;
type
// Exception for runtime errors during script evaluation
+10
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@@ -101,6 +101,8 @@ type
class function Add_Ordinal_Float_Float(A: Int64; B: Double): Double; static;
[TRtlExport('+', True)]
class function Add_Float_Ordinal_Float(A: Double; B: Int64): Double; static;
[TRtlExport('+', True)]
class function Add_Text_Text_Text(const A: String; const B: String): String; static;
// Subtract
[TRtlExport('-', True)]
@@ -249,6 +251,9 @@ class function TRtlFunctions.Add(const Args: TArray<TDataValue>): TDataValue;
begin
if Length(Args) <> 2 then
raise EArgumentException.Create('Operator + requires 2 arguments.');
if (Args[0].Kind = vkText) and (Args[1].Kind = vkText) then
Result := Args[0].AsText + Args[1].AsText
else
Result := Args[0].AsScalar + Args[1].AsScalar;
end;
@@ -915,6 +920,11 @@ begin
Result := System.Abs(A);
end;
class function TRtlFunctions.Add_Text_Text_Text(const A: String; const B: String): String;
begin
Result := A + B;
end;
class function TRtlFunctions.Round_Ordinal_Ordinal(A: Int64): Int64;
begin
Result := A;
+385
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@@ -0,0 +1,385 @@
unit Myc.Ast.RTL.TypeRegistry;
interface
uses
System.SysUtils,
System.Classes,
System.Rtti,
System.TypInfo,
System.Generics.Collections,
Myc.Data.Value,
Myc.Data.Scalar,
Myc.Data.Keyword,
Myc.Ast.Types,
Myc.Ast.Scope,
Myc.Ast.RTL;
type
EInteropException = class(Exception);
ERecursionException = class(EInteropException);
// Factory delegate for Interfaces
TInterfaceFactoryDelegate<T: IInterface> = reference to function(const Args: TArray<TDataValue>): T;
// Central registry mapping Delphi Interfaces to AST static types and handling
// runtime wrapping (Shadow Records).
TRtlTypeRegistry = class
private
class var
FCtx: TRttiContext;
FKnownTypes: TDictionary<PTypeInfo, IStaticType>;
FAnalysisStack: TList<PTypeInfo>;
// --- Analysis ---
class function AnalyzeType(ATypeInfo: PTypeInfo): IStaticType; static;
class function GenerateInterfaceDefinition(RType: TRttiInterfaceType): IStaticType; static;
class procedure EnterAnalysis(Info: PTypeInfo); static;
class procedure ExitAnalysis(Info: PTypeInfo); static;
// --- Marshalling ---
class function ToTValue(const AData: TDataValue; ATargetType: TRttiType): TValue; static;
class function FromTValue(const AValue: TValue): TDataValue; static;
// --- Wrapping ---
class function WrapInstance(const Instance: IInterface; TypeInfo: PTypeInfo): TDataValue; static;
public
class constructor Create;
class destructor Destroy;
// --- Registration ---
// Registers a Delphi Interface type. Raises ERecursionException on cycles.
class procedure RegisterType<T: IInterface>; overload;
class procedure RegisterType(Info: PTypeInfo); overload;
// --- Factories ---
// Registers a factory function. T must be registered via RegisterType<T> first.
class procedure RegisterFactory<T: IInterface>(
const Scope: IExecutionScope;
const FactoryName: string;
const FactoryArgs: TArray<IStaticType>;
const FactoryDelegate: TInterfaceFactoryDelegate<T>
);
// --- Resolution ---
class function GetStaticType(Info: PTypeInfo): IStaticType;
class function ResolveType(RType: TRttiType): IStaticType;
class property Context: TRttiContext read FCtx;
end;
implementation
uses
Myc.Ast.RTL.Core;
{ TRtlTypeRegistry }
class constructor TRtlTypeRegistry.Create;
begin
FCtx := TRttiContext.Create;
FKnownTypes := TDictionary<PTypeInfo, IStaticType>.Create;
FAnalysisStack := TList<PTypeInfo>.Create;
end;
class destructor TRtlTypeRegistry.Destroy;
begin
FAnalysisStack.Free;
FKnownTypes.Free;
FCtx.Free;
end;
// -----------------------------------------------------------------------------
// Type Analysis
// -----------------------------------------------------------------------------
class procedure TRtlTypeRegistry.EnterAnalysis(Info: PTypeInfo);
begin
if FAnalysisStack.Contains(Info) then
raise ERecursionException.CreateFmt('Recursive type definition detected for "%s".', [string(Info.Name)]);
FAnalysisStack.Add(Info);
end;
class procedure TRtlTypeRegistry.ExitAnalysis(Info: PTypeInfo);
begin
FAnalysisStack.Remove(Info);
end;
class procedure TRtlTypeRegistry.RegisterType<T>;
begin
RegisterType(TypeInfo(T));
end;
class procedure TRtlTypeRegistry.RegisterType(Info: PTypeInfo);
begin
if FKnownTypes.ContainsKey(Info) then
exit;
EnterAnalysis(Info);
try
var staticType := AnalyzeType(Info);
FKnownTypes.Add(Info, staticType);
finally
ExitAnalysis(Info);
end;
end;
class function TRtlTypeRegistry.GetStaticType(Info: PTypeInfo): IStaticType;
begin
if not FKnownTypes.TryGetValue(Info, Result) then
Result := TTypes.Unknown;
end;
class function TRtlTypeRegistry.ResolveType(RType: TRttiType): IStaticType;
begin
if not Assigned(RType) then
exit(TTypes.Void);
if FKnownTypes.TryGetValue(RType.Handle, Result) then
exit;
if FAnalysisStack.Contains(RType.Handle) then
raise ERecursionException.CreateFmt('Recursive type reference detected during resolution of "%s".', [RType.Name]);
case RType.TypeKind of
tkInteger, tkInt64: Result := TTypes.Ordinal;
tkFloat: Result := TTypes.Float;
tkString, tkUString, tkWString, tkLString, tkChar, tkWChar: Result := TTypes.Text;
tkEnumeration:
if RType.Handle = TypeInfo(Boolean) then
Result := TTypes.Boolean
else
Result := TTypes.Ordinal;
tkInterface: raise EInteropException.CreateFmt('Interface "%s" is not registered. Call RegisterType first.', [RType.Name]);
else
Result := TTypes.Unknown;
end;
end;
class function TRtlTypeRegistry.AnalyzeType(ATypeInfo: PTypeInfo): IStaticType;
var
rType: TRttiType;
begin
rType := FCtx.GetType(ATypeInfo);
case rType.TypeKind of
tkInterface: Result := GenerateInterfaceDefinition(rType as TRttiInterfaceType);
else
Result := ResolveType(rType);
end;
end;
class function TRtlTypeRegistry.GenerateInterfaceDefinition(RType: TRttiInterfaceType): IStaticType;
var
methods: TArray<TRttiMethod>;
props: TArray<TRttiProperty>;
fields: TList<TPair<IKeyword, IStaticType>>;
function MakeSig(Method: TRttiMethod): IStaticType;
var
ps: TArray<TRttiParameter>;
pTypes: TArray<IStaticType>;
returnType: IStaticType;
k: Integer;
begin
ps := Method.GetParameters;
SetLength(pTypes, Length(ps));
for k := 0 to High(ps) do
pTypes[k] := ResolveType(ps[k].ParamType);
if Assigned(Method.ReturnType) then
returnType := ResolveType(Method.ReturnType)
else
returnType := TTypes.Void;
Result := TTypes.CreateMethod(pTypes, returnType);
end;
begin
fields := TList<TPair<IKeyword, IStaticType>>.Create;
try
methods := RType.GetMethods;
for var m in methods do
begin
// Only map standard procedures/functions
if m.MethodKind in [mkProcedure, mkFunction] then
fields.Add(TPair<IKeyword, IStaticType>.Create(TKeywordRegistry.Intern(m.Name), MakeSig(m)));
end;
props := RType.GetProperties;
for var p in props do
begin
if p.IsReadable then
begin
var propType := ResolveType(p.PropertyType);
var getterSig := TTypes.CreateMethod([], propType);
fields.Add(TPair<IKeyword, IStaticType>.Create(TKeywordRegistry.Intern(p.Name), getterSig));
end;
end;
var def := TGenericRecordRegistry.Intern(fields.ToArray);
Result := TTypes.CreateGenericRecord(def);
finally
fields.Free;
end;
end;
// -----------------------------------------------------------------------------
// Marshalling
// -----------------------------------------------------------------------------
class function TRtlTypeRegistry.ToTValue(const AData: TDataValue; ATargetType: TRttiType): TValue;
begin
case AData.Kind of
vkScalar:
begin
var sc := AData.AsScalar;
case sc.Kind of
TScalar.TKind.Ordinal:
begin
if ATargetType.Handle = TypeInfo(Integer) then
Result := TValue.From<Integer>(Integer(sc.Value.AsInt64))
else if ATargetType.Handle = TypeInfo(Byte) then
Result := TValue.From<Byte>(Byte(sc.Value.AsInt64))
else if ATargetType.Handle = TypeInfo(Word) then
Result := TValue.From<Word>(Word(sc.Value.AsInt64))
else
Result := TValue.From<Int64>(sc.Value.AsInt64);
end;
TScalar.TKind.Float, TScalar.TKind.DateTime: Result := TValue.From<Double>(sc.Value.AsDouble);
TScalar.TKind.Boolean: Result := TValue.From<Boolean>(sc.Value.AsInt64 <> 0);
TScalar.TKind.Keyword:
if ATargetType.TypeKind in [tkString, tkUString, tkWString, tkLString] then
Result := TValue.From<String>(TKeywordRegistry.GetName(sc.Value.AsInt64))
else
Result := TValue.From<Int64>(sc.Value.AsInt64);
end;
end;
vkText: Result := TValue.From<string>(AData.AsText);
vkVoid: Result := TValue.Empty;
else
raise EInteropException.CreateFmt('Marshalling for DataKind %s not implemented.', [TRttiEnumerationType.GetName(AData.Kind)]);
end;
end;
class function TRtlTypeRegistry.FromTValue(const AValue: TValue): TDataValue;
begin
if AValue.IsEmpty then
exit(TDataValue.Void);
case AValue.Kind of
tkInteger, tkInt64: Result := TScalar.FromInt64(AValue.AsInt64);
tkFloat: Result := TScalar.FromDouble(AValue.AsExtended);
tkString, tkUString, tkWString, tkLString: Result := AValue.AsString;
tkEnumeration:
if AValue.TypeInfo = TypeInfo(Boolean) then
Result := TScalar.FromBoolean(AValue.AsBoolean)
else
Result := TScalar.FromInt64(AValue.AsOrdinal);
// Recursively wrap returned interfaces
tkInterface: Result := WrapInstance(AValue.AsInterface, AValue.TypeInfo);
else
Result := TDataValue.Void;
end;
end;
// -----------------------------------------------------------------------------
// Runtime Wrapping (Shadow Record Creation)
// -----------------------------------------------------------------------------
class function TRtlTypeRegistry.WrapInstance(const Instance: IInterface; TypeInfo: PTypeInfo): TDataValue;
var
rType: TRttiType;
rIntf: TRttiInterfaceType;
recFields: TDictionary<IKeyword, TDataValue>;
begin
if Instance = nil then
exit(TDataValue.Void);
rType := FCtx.GetType(TypeInfo);
if not (rType is TRttiInterfaceType) then
exit(TDataValue.Void);
rIntf := rType as TRttiInterfaceType;
recFields := TDictionary<IKeyword, TDataValue>.Create;
try
// Wrap Methods
for var m in rIntf.GetMethods do
begin
if (m.MethodKind in [mkProcedure, mkFunction]) then
begin
var key := TKeywordRegistry.Intern(m.Name);
if recFields.ContainsKey(key) then
raise EInteropException.Create('Overloading not supported');
var methodFactory :=
function(const Instance: IInterface; Meth: TRttiMethod): TDataValue.TFunc
begin
var inst := TValue.From(Instance);
var params := Meth.GetParameters;
Result :=
function(const Args: TArray<TDataValue>): TDataValue
var
rttiArgs: TArray<TValue>;
res: TValue;
i: Integer;
begin
if Length(Args) <> Length(params) then
raise Exception.CreateFmt('Method %s expects %d args', [m.Name, Length(params)]);
SetLength(rttiArgs, Length(params));
for i := 0 to High(params) do
rttiArgs[i] := ToTValue(Args[i], params[i].ParamType);
res := Meth.Invoke(inst, rttiArgs);
Result := FromTValue(res);
end;
end;
recFields.Add(key, methodFactory(Instance, m));
end;
end;
Result := TDataValue.FromGenericRecord(TKeywordMapping<TDataValue>.Create(recFields.ToArray));
finally
recFields.Free;
end;
end;
// -----------------------------------------------------------------------------
// Factories
// -----------------------------------------------------------------------------
class procedure TRtlTypeRegistry.RegisterFactory<T>(
const Scope: IExecutionScope;
const FactoryName: string;
const FactoryArgs: TArray<IStaticType>;
const FactoryDelegate: TInterfaceFactoryDelegate<T>
);
var
staticType: IStaticType;
ti: PTypeInfo;
begin
ti := TypeInfo(T);
staticType := GetStaticType(ti);
if staticType.Kind = stUnknown then
raise EInteropException.CreateFmt('Interface "%s" must be registered via RegisterType<T> first.', [string(ti.Name)]);
var factoryWrapper: TDataValue.TFunc :=
function(const Args: TArray<TDataValue>): TDataValue
var
instance: T;
begin
instance := FactoryDelegate(Args);
// Result wrapping will handle reference counting via closures
Result := WrapInstance(instance, ti);
end;
var factorySig := TTypes.CreateMethod(FactoryArgs, staticType);
Scope.Define(FactoryName, TDataValue(factoryWrapper), factorySig);
end;
end.
+21 -1
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@@ -84,6 +84,7 @@ type
TNativeFunc_OF_O = function(A: Int64; B: Double): Int64;
TNativeFunc_FO_F = function(A: Double; B: Int64): Double;
TNativeFunc_FO_O = function(A: Double; B: Int64): Int64;
TNativeFunc_TT_T = function(const A: String; const B: String): String;
private
class var
@@ -105,6 +106,7 @@ type
class function CreateWrapper_OF_O(CodeAddress: Pointer): TDataValue.TFunc; static;
class function CreateWrapper_FO_F(CodeAddress: Pointer): TDataValue.TFunc; static;
class function CreateWrapper_FO_O(CodeAddress: Pointer): TDataValue.TFunc; static;
class function CreateWrapper_TT_T(CodeAddress: Pointer): TDataValue.TFunc; static;
class function CreateStaticWrapper(
method: TRttiMethod;
retType: IStaticType;
@@ -656,6 +658,20 @@ begin
end;
end;
class function TRtlRegistry.CreateWrapper_TT_T(CodeAddress: Pointer): TDataValue.TFunc;
begin
Result :=
function(const Args: TArray<TDataValue>): TDataValue
var
A: String;
B: String;
begin
A := Args[0].AsText;
B := Args[1].AsText;
Result := TNativeFunc_TT_T(CodeAddress)(A, B);
end;
end;
class function TRtlRegistry.CreateStaticWrapper(
method: TRttiMethod;
retType: IStaticType;
@@ -736,7 +752,11 @@ begin
begin
// Keywords are passed as Int64 (index)
Result := CreateWrapper_OO_O(ptr); // e.g. Equal_Keyword_Keyword
end;
end
else if (k1 = stText) and (k2 = stText) then
begin
Result := CreateWrapper_TT_T(ptr); // e.g. String concat
end
end;
end;
+5 -13
View File
@@ -227,10 +227,6 @@ type
function VisitNop(const Node: INopNode): TVoid; override;
end;
// -----------------------------------------------------------------------------
// IMPLEMENTATION: Helpers & Basic Types
// -----------------------------------------------------------------------------
function TTokenKindHelper.ToString: String;
begin
case Self of
@@ -259,9 +255,7 @@ begin
Result := TIdentities.Location(Line, Col);
end;
// -----------------------------------------------------------------------------
// IMPLEMENTATION: Lexer
// -----------------------------------------------------------------------------
{ EParserException }
constructor EParserException.Create(const AMessage: string; ALine, ACol: Integer);
begin
@@ -270,6 +264,8 @@ begin
FCol := ACol;
end;
{ TLexer }
constructor TLexer.Create(const ASource: string);
begin
inherited Create;
@@ -811,9 +807,7 @@ begin
Result := expr.Node;
end;
// -----------------------------------------------------------------------------
// IMPLEMENTATION: PrettyPrintVisitor
// -----------------------------------------------------------------------------
{ TPrettyPrintVisitor }
constructor TPrettyPrintVisitor.Create;
begin
@@ -1136,9 +1130,7 @@ begin
Append(')');
end;
// -----------------------------------------------------------------------------
// IMPLEMENTATION: TAstScript Facade
// -----------------------------------------------------------------------------
{ TAstScript }
class function TAstScript.Parse(const ASource: string): IAstNode;
var
+5 -42
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@@ -28,15 +28,11 @@ type
RecCount: Integer;
end;
// Converts a TScalarBatch into a stream of IScalarRecord events using the cursor pattern.
// NOTE: This uses a zero-copy approach. Consumers must process data synchronously or copy it.
TScalarBatchUnpacker = class(TMycConverter<TScalarBatch, IScalarRecord>)
private
FDef: IScalarRecordDefinition;
protected
function Consume(const Value: TScalarBatch): TState; override;
public
constructor Create(const ADef: IScalarRecordDefinition);
IBroker = interface
function GetEquity: Double;
procedure Buy(Count: Integer);
procedure Sell(Count: Integer);
property Equity: Double read GetEquity;
end;
IScalarBatchLoader = interface
@@ -220,39 +216,6 @@ begin
Result := FDef.IndexOf(Key);
end;
{ TScalarBatchUnpacker }
constructor TScalarBatchUnpacker.Create(const ADef: IScalarRecordDefinition);
begin
inherited Create;
FDef := ADef;
end;
function TScalarBatchUnpacker.Consume(const Value: TScalarBatch): TState;
begin
if (Length(Value.Data) > 0) and (Value.RecCount > 0) then
begin
var Stride := Length(Value.Data) div Value.RecCount;
var pCursor: TScalar.PValue := @Value.Data[0];
// Initialize reused View object (Cursor Pattern)
// This object implements IScalarRecord and is updated for each tick.
var ViewObj := TScalarRecordView.Create(FDef);
var View := ViewObj as IScalarRecord;
for var i := 0 to Value.RecCount - 1 do
begin
ViewObj.SetData(pCursor);
// Broadcast to all listeners
Broadcast(View);
Inc(pCursor, Stride);
end;
end;
Result := TState.Null;
end;
{ TScalarBatchLoader.TDataFile }
constructor TScalarBatchLoader.TDataFile.Create(const APath, ASymbol, AExtension: String; AYear, AMonth: Integer; const ABasename: String);
+481
View File
@@ -0,0 +1,481 @@
unit Test.Myc.Ast.RTL.TypeRegistry;
interface
uses
System.SysUtils,
System.Classes,
System.Rtti,
DUnitX.TestFramework,
Myc.Data.Value,
Myc.Data.Scalar,
Myc.Ast.Types,
Myc.Ast.Scope,
Myc.Ast.Script,
Myc.Ast.Environment,
Myc.Ast.Evaluator,
Myc.Ast.RTL.TypeRegistry,
Myc.Ast; // Facade for parsing
type
// --- Mocks & Interfaces for Testing ---
// Ein untergeordnetes Interface für rekursive Tests
ISubService = interface(IInvokable)
['{B1E8A9C4-1234-4321-ABCD-1234567890AB}']
function GetName: string;
function Multiply(A, B: Integer): Int64;
end;
IUnknownService = interface(IInvokable)
['{DEADBEEF-0000-0000-0000-000000000000}']
procedure DoNothing;
end;
// Das Haupt-Interface
IMainService = interface(IInvokable)
['{A1E8A9C4-1111-2222-3333-444455556666}']
// Basic Methods
function Add(A, B: Integer): Integer;
procedure SetStatus(const Msg: string);
// Properties
function GetCounter: Integer;
property Counter: Integer read GetCounter;
// Recursion / Complex Return Types
function CreateSub(const Name: string): ISubService;
// Edge Cases
function EchoFloat(val: Double): Double;
end;
// --- New Interfaces for Corner Cases ---
// 1. Inheritance Hierarchy
IAncestorService = interface(IInvokable)
['{11111111-0000-0000-0000-111111111111}']
function AncestorMethod: string;
end;
IDescendantService = interface(IAncestorService)
['{22222222-0000-0000-0000-222222222222}']
function DescendantMethod: string;
end;
// 2. Complex Edge Cases (Void, Errors, Nil, Overloads)
IEdgeCaseService = interface(IInvokable)
['{EEEEEEEE-0000-0000-0000-EEEEEEEEEEEE}']
// Void return (Procedure)
procedure DoSomethingVoid;
// Native Exception
procedure TriggerError(const Msg: string);
// Nil Interface return
function GetNullService: IAncestorService;
end;
[TestFixture]
[IgnoreMemoryLeaks]
TTestRtlTypeRegistry = class
private
FScope: IExecutionScope;
FEnv: TAstEnvironment;
public
[Setup]
procedure Setup;
[TearDown]
procedure TearDown;
// --- Original Tests ---
[Test]
procedure Test_TypeRegistration_Analysis;
[Test]
procedure Test_Factory_And_MethodCall;
[Test]
procedure Test_PropertyAccess;
[Test]
procedure Test_Recursive_Interface_Wrapping;
[Test]
procedure Test_Marshalling_EdgeCases;
[Test]
procedure Test_Error_MissingRegistration;
// --- New Corner Case Tests ---
[Test]
procedure Test_Inheritance_CallAncestorMethod;
[Test]
procedure Test_VoidProcedure;
[Test]
procedure Test_NativeException_Propagates;
[Test]
procedure Test_ReturnNilInterface;
[Test]
procedure Test_UnsupportedType_Marshalling;
end;
implementation
uses
System.TypInfo,
Myc.Ast.Nodes;
// --- Mock Implementations ---
type
TSubService = class(TInterfacedObject, ISubService)
private
FName: string;
public
constructor Create(const AName: string);
function GetName: string;
function Multiply(A, B: Integer): Int64;
end;
TMainService = class(TInterfacedObject, IMainService)
private
FCount: Integer;
FLastStatus: string;
public
constructor Create;
function Add(A, B: Integer): Integer;
procedure SetStatus(const Msg: string);
function GetCounter: Integer;
function CreateSub(const Name: string): ISubService;
function EchoFloat(val: Double): Double;
property LastStatus: string read FLastStatus;
end;
TInheritanceService = class(TInterfacedObject, IDescendantService)
public
function AncestorMethod: string;
function DescendantMethod: string;
end;
TEdgeCaseService = class(TInterfacedObject, IEdgeCaseService)
private
FVoidCalled: Boolean;
public
procedure DoSomethingVoid;
procedure TriggerError(const Msg: string);
function GetNullService: IAncestorService;
property VoidCalled: Boolean read FVoidCalled;
end;
{ TSubService }
constructor TSubService.Create(const AName: string);
begin
FName := AName;
end;
function TSubService.GetName: string;
begin
Result := FName;
end;
function TSubService.Multiply(A, B: Integer): Int64;
begin
Result := Int64(A) * Int64(B);
end;
{ TMainService }
constructor TMainService.Create;
begin
FCount := 0;
end;
function TMainService.Add(A, B: Integer): Integer;
begin
Result := A + B;
Inc(FCount);
end;
function TMainService.CreateSub(const Name: string): ISubService;
begin
Result := TSubService.Create(Name);
Inc(FCount);
end;
function TMainService.EchoFloat(val: Double): Double;
begin
Result := val;
end;
function TMainService.GetCounter: Integer;
begin
Result := FCount;
end;
procedure TMainService.SetStatus(const Msg: string);
begin
FLastStatus := Msg;
end;
{ TInheritanceService }
function TInheritanceService.AncestorMethod: string;
begin
Result := 'Ancestor';
end;
function TInheritanceService.DescendantMethod: string;
begin
Result := 'Descendant';
end;
procedure TEdgeCaseService.DoSomethingVoid;
begin
FVoidCalled := True;
end;
function TEdgeCaseService.GetNullService: IAncestorService;
begin
Result := nil;
end;
procedure TEdgeCaseService.TriggerError(const Msg: string);
begin
raise Exception.Create(Msg);
end;
// --- Tests ---
procedure TTestRtlTypeRegistry.Setup;
begin
// 1. Create Clean Environment
FEnv := TAstEnvironment.Construct(nil);
FEnv.SetStandardMode;
FScope := FEnv.RootScope;
// 2. Register Standard Mocks
TRtlTypeRegistry.RegisterType<ISubService>;
TRtlTypeRegistry.RegisterType<IMainService>;
TRtlTypeRegistry.RegisterFactory<IMainService>(
FScope,
'create-service',
[],
function(const Args: TArray<TDataValue>): IMainService begin Result := TMainService.Create; end
);
// 3. Register Corner Case Mocks
TRtlTypeRegistry.RegisterType<IAncestorService>;
TRtlTypeRegistry.RegisterType<IDescendantService>;
TRtlTypeRegistry.RegisterType<IEdgeCaseService>;
TRtlTypeRegistry.RegisterFactory<IDescendantService>(
FScope,
'create-descendant',
[],
function(const Args: TArray<TDataValue>): IDescendantService begin Result := TInheritanceService.Create; end
);
TRtlTypeRegistry.RegisterFactory<IEdgeCaseService>(
FScope,
'create-edge',
[],
function(const Args: TArray<TDataValue>): IEdgeCaseService begin Result := TEdgeCaseService.Create; end
);
end;
procedure TTestRtlTypeRegistry.TearDown;
begin
// Interfaces are ref-counted, scope cleanup handles values.
FScope := nil;
end;
procedure TTestRtlTypeRegistry.Test_TypeRegistration_Analysis;
var
staticType: IStaticType;
genRec: IGenericRecordDefinition;
idx: Integer;
methodType: IStaticType;
begin
// Verify that IMainService was analyzed correctly into an AST definition
staticType := TRtlTypeRegistry.GetStaticType(TypeInfo(IMainService));
Assert.AreNotEqual(TStaticTypeKind.stUnknown, staticType.Kind, 'Type should be known');
Assert.AreEqual(TStaticTypeKind.stGenericRecord, staticType.Kind, 'Interface should map to GenericRecord');
genRec := staticType.GenericDefinition;
// Check 'Add' method existence
idx := genRec.IndexOf(Myc.Data.Keyword.TKeywordRegistry.Intern('Add'));
Assert.IsTrue(idx >= 0, 'Method Add should exist in type definition');
methodType := genRec.Items[idx].Value;
Assert.AreEqual(TStaticTypeKind.stMethod, methodType.Kind);
// Add has 2 args (Ordinal, Ordinal) -> Ordinal
Assert.AreEqual(Int64(2), Length(methodType.Signatures[0].ParamTypes));
Assert.AreEqual(TStaticTypeKind.stOrdinal, methodType.Signatures[0].ReturnType.Kind);
end;
procedure TTestRtlTypeRegistry.Test_Factory_And_MethodCall;
var
script: string;
res: TDataValue;
begin
// Script: Create service, call Add(10, 20)
script := '(do ' + ' (def svc (create-service)) ' + ' ((.Add svc) 10 20) ' + ')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
Assert.AreEqual(TDataValueKind.vkScalar, res.Kind);
Assert.AreEqual(Int64(30), res.AsScalar.Value.AsInt64);
end;
procedure TTestRtlTypeRegistry.Test_PropertyAccess;
var
script: string;
res: TDataValue;
begin
// Script: Call Add twice (increments counter), then read Counter property
script :=
'(do '
+ ' (def svc (create-service)) '
+ ' ((.Add svc) 1 1) '
+ ' ((.Add svc) 2 2) '
+ ' ((.GetCounter svc)) '
+ // Property is a getter-function in script!
')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
Assert.AreEqual(vkScalar, res.Kind);
Assert.AreEqual(Int64(2), res.AsScalar.Value.AsInt64);
end;
procedure TTestRtlTypeRegistry.Test_Recursive_Interface_Wrapping;
var
script: string;
res: TDataValue;
begin
// Script:
// 1. Create MainService
// 2. Call CreateSub("TestSub") -> Returns ISubService (Wrapped automatically!)
// 3. Call Multiply on that SubService
script := '(do ' + ' (def svc (create-service)) ' + ' (def sub ((.CreateSub svc) "TestSub")) ' + ' ((.Multiply sub) 6 7) ' + ')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
Assert.AreEqual(Int64(42), res.AsScalar.Value.AsInt64);
end;
procedure TTestRtlTypeRegistry.Test_Marshalling_EdgeCases;
var
script: string;
res: TDataValue;
begin
// Test Float Marshalling and String
// Script: Pass a float, get it back.
script := '(do ' + ' (def svc (create-service)) ' + ' ((.EchoFloat svc) 3.1415) ' + ')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
Assert.AreEqual(3.1415, res.AsScalar.Value.AsDouble, 0.0001);
end;
procedure TTestRtlTypeRegistry.Test_Error_MissingRegistration;
begin
// Try to create factory without registering type
Assert.WillRaise(procedure begin TRtlTypeRegistry.RegisterFactory<IUnknownService>(FScope, 'fail', [], nil); end, EInteropException);
end;
// --- New Corner Cases ---
procedure TTestRtlTypeRegistry.Test_Inheritance_CallAncestorMethod;
var
script: string;
res: TDataValue;
begin
// Test if we can call a method defined in the parent interface
// on an instance of the child interface.
script :=
'(do '
+ ' (def svc (create-descendant)) '
+ ' (def val1 ((.DescendantMethod svc))) '
+ ' (def val2 ((.AncestorMethod svc))) '
+ ' (+ val1 val2) '
+ ')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
Assert.AreEqual(TDataValueKind.vkText, res.Kind);
Assert.AreEqual('DescendantAncestor', res.AsText);
end;
procedure TTestRtlTypeRegistry.Test_VoidProcedure;
var
script: string;
res: TDataValue;
begin
// Procedures (void return) should return vkVoid in AST
script := '(do ' + ' (def svc (create-edge)) ' + ' ((.DoSomethingVoid svc)) ' + ')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
Assert.IsTrue(res.IsVoid, 'Procedures should return Void TDataValue');
end;
procedure TTestRtlTypeRegistry.Test_NativeException_Propagates;
var
script: string;
begin
// Verify that a Delphi exception crashes the script execution properly
script := '(do ' + ' (def svc (create-edge)) ' + ' ((.TriggerError svc) "Boom!") ' + ')';
var root := TAstScript.Parse(script);
Assert.WillRaise(procedure begin FEnv.Run(root); end, EEvaluatorException, 'Boom!');
end;
procedure TTestRtlTypeRegistry.Test_ReturnNilInterface;
var
script: string;
res: TDataValue;
begin
// If a Delphi function returns nil, the AST value should be Void or handle it gracefully
script := '(do ' + ' (def svc (create-edge)) ' + ' ((.GetNullService svc)) ' + ')';
var root := TAstScript.Parse(script);
res := FEnv.Run(root);
if res.Kind = vkInterface then
Assert.IsNull(res.AsIntf<IInterface>, 'Returned interface should be nil')
else
Assert.IsTrue(res.IsVoid, 'Nil result should be mapped to Void');
end;
procedure TTestRtlTypeRegistry.Test_UnsupportedType_Marshalling;
begin
// This expects the runtime to throw an error when converting TValue or invoking
// due to invalid argument types (passing string where int is expected).
var script := '(do ' + ' (def svc (create-edge)) ' + ' ((.Calc svc) "Not a number") ' + ')';
var root := TAstScript.Parse(script);
Assert.WillRaise(procedure begin FEnv.Run(root); end);
end;
end.
+2 -1
View File
@@ -32,7 +32,8 @@ uses
Test.Myc.Ast.Script in 'AST\Test.Myc.Ast.Script.pas',
Test.Myc.Ast.Compiler.Macros in 'AST\Test.Myc.Ast.Compiler.Macros.pas',
Test.Myc.Ast.RTL.DateTime in 'AST\Test.Myc.Ast.RTL.DateTime.pas',
Test.Myc.Ast.Compiler.Binder in '..\Src\AST\Test.Myc.Ast.Compiler.Binder.pas';
Test.Myc.Ast.Compiler.Binder in '..\Src\AST\Test.Myc.Ast.Compiler.Binder.pas',
Test.Myc.Ast.RTL.TypeRegistry in 'AST\Test.Myc.Ast.RTL.TypeRegistry.pas';
{ keep comment here to protect the following conditional from being removed by the IDE when adding a unit }
{$IFNDEF TESTINSIGHT}
+1
View File
@@ -134,6 +134,7 @@ $(PreBuildEvent)]]></PreBuildEvent>
<DCCReference Include="AST\Test.Myc.Ast.Compiler.Macros.pas"/>
<DCCReference Include="AST\Test.Myc.Ast.RTL.DateTime.pas"/>
<DCCReference Include="..\Src\AST\Test.Myc.Ast.Compiler.Binder.pas"/>
<DCCReference Include="AST\Test.Myc.Ast.RTL.TypeRegistry.pas"/>
<BuildConfiguration Include="Base">
<Key>Base</Key>
</BuildConfiguration>
-21
View File
@@ -23,8 +23,6 @@ type
[TestCase('Float_Negative', '-3.1415926535,Float')]
procedure TestScalarCreation(const AValueStr: string; AExpectedKind: TScalar.TKind);
[Test]
procedure TestScalarTuple;
end;
implementation
@@ -56,25 +54,6 @@ begin
end;
end;
procedure TTestPOD.TestScalarTuple;
var
tuple: TScalarTuple;
begin
// A tuple is a heterogeneous array of TScalar
SetLength(tuple, 3);
tuple[0] := TScalar.FromInt64(123);
tuple[1] := TScalar.FromDouble(3.14);
tuple[2] := TScalar.FromInt64(-456);
Assert.AreEqual(Int64(3), Length(tuple), 'Tuple length mismatch');
Assert.AreEqual(TScalar.TKind.Ordinal, tuple[0].Kind, 'Tuple item 0 kind mismatch');
Assert.AreEqual(Int64(123), tuple[0].Value.AsInt64, 'Tuple item 0 value mismatch');
Assert.AreEqual(TScalar.TKind.Float, tuple[1].Kind, 'Tuple item 1 kind mismatch');
Assert.AreEqual(3.14, tuple[1].Value.AsDouble, 1E-12, 'Tuple item 1 value mismatch');
Assert.AreEqual(TScalar.TKind.Ordinal, tuple[2].Kind, 'Tuple item 2 kind mismatch');
Assert.AreEqual(Int64(-456), tuple[2].Value.AsInt64, 'Tuple item 2 value mismatch');
end;
initialization
FormatSettings.DecimalSeparator := '.';
TDUnitX.RegisterTestFixture(TTestPOD);