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fix(jsii): support public autoproperties in private constructor (#256)
Includes a fix in the .NET generator to add support for private constructors.
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13 files changed

+381
-122
lines changed

13 files changed

+381
-122
lines changed

‎packages/jsii-calc/lib/compliance.ts

Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -914,3 +914,11 @@ export class DoNotOverridePrivates {
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this.privateProperty = newValue;
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}
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}
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/**
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* Class that implements interface properties automatically, but using a private constructor
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*/
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export class ClassWithPrivateConstructorAndAutomaticProperties implements IInterfaceWithProperties {
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private constructor(public readonly readOnlyString: string, public readWriteString: string) {
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}
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}

‎packages/jsii-calc/test/assembly.jsii

Lines changed: 36 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1035,6 +1035,41 @@
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}
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]
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},
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"jsii-calc.ClassWithPrivateConstructorAndAutomaticProperties": {
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"assembly": "jsii-calc",
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"docs": {
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"comment": "Class that implements interface properties automatically, but using a private constructor"
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},
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"fqn": "jsii-calc.ClassWithPrivateConstructorAndAutomaticProperties",
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"interfaces": [
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{
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"fqn": "jsii-calc.IInterfaceWithProperties"
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}
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],
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"kind": "class",
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"name": "ClassWithPrivateConstructorAndAutomaticProperties",
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"properties": [
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{
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"immutable": true,
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"name": "readOnlyString",
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"overrides": {
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"fqn": "jsii-calc.IInterfaceWithProperties"
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},
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"type": {
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"primitive": "string"
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}
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},
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{
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"name": "readWriteString",
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"overrides": {
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"fqn": "jsii-calc.IInterfaceWithProperties"
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},
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"type": {
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"primitive": "string"
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}
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}
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]
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},
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"jsii-calc.DefaultedConstructorArgument": {
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"assembly": "jsii-calc",
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"fqn": "jsii-calc.DefaultedConstructorArgument",
@@ -3297,5 +3332,5 @@
32973332
}
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},
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"version": "0.7.6",
3300-
"fingerprint": "IrPnQp841TiCOiG/Z2z18s0K8pxTwuMglW1UJ2t1zsM="
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"fingerprint": "eFasWxN7YC37iWdz+dDbEFTSQCzyangrqP5Nu02rzpw="
33013336
}

‎packages/jsii-dotnet-generator/src/Amazon.JSII.Generator.UnitTests/Class/ClassGeneratorTests.cs

Lines changed: 30 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -57,6 +57,36 @@ protected MyClass(DeputyProps props): base(props)
5757
Assert.Equal(expected, actual, ignoreLineEndingDifferences: true);
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}
5959

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[Fact(DisplayName = Prefix + nameof(AllowsPrivateConstructor))]
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public void AllowsPrivateConstructor()
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{
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ClassType classType = new ClassType
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(
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fullyQualifiedName: "myFqn",
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assembly: "myPackage",
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name: "myClass",
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isAbstract: false
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);
70+
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string actual = Render(classType);
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string expected =
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@"namespace MyNamespace
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{
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[JsiiClass(typeof(MyClass), ""myFqn"", ""[]"")]
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public class MyClass : DeputyBase
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{
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protected MyClass(ByRefValue reference): base(reference)
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{
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}
81+
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protected MyClass(DeputyProps props): base(props)
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{
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}
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}
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}";
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Assert.Equal(expected, actual, ignoreLineEndingDifferences: true);
88+
}
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[Fact(DisplayName = Prefix + nameof(IncludesAbstractKeyword))]
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public void IncludesAbstractKeyword()
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{

‎packages/jsii-dotnet-generator/src/Amazon.JSII.Generator/Class/ClassGenerator.cs

Lines changed: 36 additions & 32 deletions
Original file line numberDiff line numberDiff line change
@@ -1,9 +1,9 @@
1-
using Amazon.JSII.JsonModel.Spec;
1+
using System.Collections.Generic;
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using System.Linq;
3+
using Amazon.JSII.JsonModel.Spec;
24
using Microsoft.CodeAnalysis;
35
using Microsoft.CodeAnalysis.CSharp;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
5-
using System.Collections.Generic;
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using System.Linq;
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using SF = Microsoft.CodeAnalysis.CSharp.SyntaxFactory;
88

99
namespace Amazon.JSII.Generator.Class
@@ -97,37 +97,41 @@ IEnumerable<MemberDeclarationSyntax> CreateConstructors()
9797
{
9898
SyntaxToken typeName = Symbols.GetNameSyntaxToken(Type);
9999

100-
yield return SF.ConstructorDeclaration
101-
(
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SF.List<AttributeListSyntax>(),
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SF.TokenList(SF.Token(
104-
Type.IsAbstract || Type.Initializer.IsProtected ?
105-
SyntaxKind.ProtectedKeyword :
106-
SyntaxKind.PublicKeyword
107-
)),
108-
typeName,
109-
Type.Initializer.GetParameterListSyntax(Namespaces, Symbols),
110-
SF.ConstructorInitializer
100+
if (Type.Initializer != null)
101+
{
102+
yield return SF.ConstructorDeclaration
111103
(
112-
SyntaxKind.BaseConstructorInitializer,
113-
SF.ArgumentList(
114-
SF.SeparatedList(new[] {
115-
SF.Argument(
116-
SF.ObjectCreationExpression(
117-
SF.Token(SyntaxKind.NewKeyword),
118-
SF.ParseTypeName("DeputyProps"),
119-
SF.ArgumentList(SF.SeparatedList(
120-
new[] { GetBaseArgument() }
121-
)),
122-
null
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SF.List<AttributeListSyntax>(),
105+
SF.TokenList(SF.Token(
106+
Type.IsAbstract || Type.Initializer.IsProtected
107+
? SyntaxKind.ProtectedKeyword
108+
: SyntaxKind.PublicKeyword
109+
)),
110+
typeName,
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Type.Initializer.GetParameterListSyntax(Namespaces, Symbols),
112+
SF.ConstructorInitializer
113+
(
114+
SyntaxKind.BaseConstructorInitializer,
115+
SF.ArgumentList(
116+
SF.SeparatedList(new[]
117+
{
118+
SF.Argument(
119+
SF.ObjectCreationExpression(
120+
SF.Token(SyntaxKind.NewKeyword),
121+
SF.ParseTypeName("DeputyProps"),
122+
SF.ArgumentList(SF.SeparatedList(
123+
new[] {GetBaseArgument()}
124+
)),
125+
null
126+
)
123127
)
124-
)
125-
})
126-
)
127-
),
128-
SF.Block(),
129-
null
130-
);
128+
})
129+
)
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),
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SF.Block(),
132+
null
133+
);
134+
}
131135

132136
yield return SF.ConstructorDeclaration
133137
(

‎packages/jsii-dotnet-generator/src/Amazon.JSII.Generator/MethodExtensions.cs

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,10 @@
1-
using Amazon.JSII.JsonModel.Spec;
1+
using System;
2+
using System.Collections.Generic;
3+
using System.Linq;
4+
using Amazon.JSII.JsonModel.Spec;
25
using Microsoft.CodeAnalysis;
36
using Microsoft.CodeAnalysis.CSharp.Syntax;
47
using Newtonsoft.Json;
5-
using System;
6-
using System.Collections.Generic;
7-
using System.Linq;
88
using SF = Microsoft.CodeAnalysis.CSharp.SyntaxFactory;
99

1010
namespace Amazon.JSII.Generator
@@ -44,7 +44,7 @@ IEnumerable<ParameterSyntax> GetParameters()
4444
public static SyntaxToken GetParametersJsonSyntaxToken(this Method method)
4545
{
4646
// Strip docs before serializing.
47-
Parameter[] parameters = (method.Parameters ?? Enumerable.Empty<Parameter>())
47+
Parameter[] parameters = (method?.Parameters ?? Enumerable.Empty<Parameter>())
4848
.Select(p => new Parameter(p.Name, p.Type))
4949
.ToArray();
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