Merge pull request #116 from bloomberg/isolated-declarations-ctor-props

Fixed optional constructor properties.
bloomberg · Nov 27, 2023 · d4e8654 · d4e8654
2 parents 867e100 + 3199057
commit d4e8654
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Showing 9 changed files with 195 additions and 5 deletions.
diff --git a/src/compiler/transformers/declarations/localInferenceResolver.ts b/src/compiler/transformers/declarations/localInferenceResolver.ts
@@ -61,6 +61,7 @@ import {
     LiteralExpression,
     MethodDeclaration,
     MethodSignature,
+    ModifierFlags,
     Node,
     NodeArray,
     NodeFlags,
@@ -83,7 +84,9 @@ import {
 } from "../../types";
 import {
     createDiagnosticForNode,
+    hasSyntacticModifier,
     isEntityNameExpression,
+    isOptionalDeclaration,
 } from "../../utilities";
 import {
     isConstTypeReference,
@@ -745,8 +748,22 @@ export function createLocalInferenceResolver({
                 localType = invalid(node);
             }
 
-            if (node.initializer && !(localType.flags & LocalTypeInfoFlags.Invalid) && strictNullChecks && !resolver.isOptionalParameter(node)) {
-                localType.typeNode = addUndefinedInUnion(localType.typeNode);
+            if (strictNullChecks && !(localType.flags & LocalTypeInfoFlags.Invalid)) {
+                const isOptional = resolver.isOptionalParameter(node);
+                /**
+                 * If a parameter with a default value is not optional we need to add undefined
+                 * function x(o = "", v: string)
+                 */
+                if (node.initializer && !isOptional) {
+                    localType.typeNode = addUndefinedInUnion(localType.typeNode);
+                }
+                /**
+                 * Constructor properties that are optional must have | undefined included to work well with exactOptionalPropertyTypes
+                 * constructor(public x?: number) -> x?: number | undefined
+                 */
+                if (isOptional && !node.initializer && hasSyntacticModifier(node, ModifierFlags.ParameterPropertyModifier)) {
+                    localType.typeNode = addUndefinedInUnion(localType.typeNode);
+                }
             }
         }
         else if (type) {
@@ -764,14 +781,17 @@ export function createLocalInferenceResolver({
                 localType = invalid(node);
             }
             else if (isClassExpression(node.initializer)) {
-                localType = invalid(node.initializer, Diagnostics.Declaration_emit_for_class_expressions_are_not_supported_with_isolatedDeclarations)
+                localType = invalid(node.initializer, Diagnostics.Declaration_emit_for_class_expressions_are_not_supported_with_isolatedDeclarations);
             }
             else {
                 localType = localInference(node.initializer, node.parent.flags & NodeFlags.Const ? NarrowBehavior.KeepLiterals : NarrowBehavior.None);
             }
         }
         else if (isPropertyDeclaration(node) && node.initializer) {
             localType = localInference(node.initializer);
+            if (isOptionalDeclaration(node)) {
+                localType.typeNode = addUndefinedInUnion(localType.typeNode);
+            }
         }
         else if (isInterfaceDeclaration(node.parent) || isTypeLiteralNode(node.parent)) {
             return factory.createKeywordTypeNode(SyntaxKind.AnyKeyword);

diff --git a/...ence/isolated-declarations/auto-fixed/diff/declarationEmitParameterProperty.d.ts.map.diff b/...ence/isolated-declarations/auto-fixed/diff/declarationEmitParameterProperty.d.ts.map.diff
@@ -0,0 +1,16 @@
+// [[Reason: Sourcemap is more detailed]] ////
+
+//// [tests/cases/compiler/declarationEmitParameterProperty.ts] ////
+
+===================================================================
+--- TSC	declarations
++++ DTE	declarations
+@@ -1,6 +1,6 @@
+
+ //// [declarationEmitParameterProperty.d.ts.map]
+-{"version":3,"file":"declarationEmitParameterProperty.d.ts","sourceRoot":"","sources":["declarationEmitParameterProperty.ts"],"names":[],"mappings":"AAAA,qBAAa,GAAG;IACK,GAAG,CAAC;gBAAJ,GAAG,CAAC,oBAAQ;CAEhC"}
++{"version":3,"file":"declarationEmitParameterProperty.d.ts","sourceRoot":"","sources":["declarationEmitParameterProperty.ts"],"names":[],"mappings":"AAAA,qBAAa,GAAG;IACK,GAAG,CAAC,EAAE,MAAM;gBAAZ,GAAG,CAAC,EAAE,MAAM,YAAA;CAEhC"}
+
+-//// https://sokra.github.io/source-map-visualization#base64,ZXhwb3J0IGRlY2xhcmUgY2xhc3MgRm9vIHsNCiAgICBiYXI/OiBzdHJpbmcgfCB1bmRlZmluZWQ7DQogICAgY29uc3RydWN0b3IoYmFyPzogc3RyaW5nIHwgdW5kZWZpbmVkKTsNCn0NCi8vIyBzb3VyY2VNYXBwaW5nVVJMPWRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LmQudHMubWFw,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZGVjbGFyYXRpb25FbWl0UGFyYW1ldGVyUHJvcGVydHkuZC50cyIsInNvdXJjZVJvb3QiOiIiLCJzb3VyY2VzIjpbImRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LnRzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLHFCQUFhLEdBQUc7SUFDSyxHQUFHLENBQUM7Z0JBQUosR0FBRyxDQUFDLG9CQUFRO0NBRWhDIn0=,ZXhwb3J0IGNsYXNzIEZvbyB7CiAgY29uc3RydWN0b3IocHVibGljIGJhcj86IHN0cmluZykgewogIH0KfQo=
++//// https://sokra.github.io/source-map-visualization#base64,ZXhwb3J0IGRlY2xhcmUgY2xhc3MgRm9vIHsNCiAgICBiYXI/OiBzdHJpbmcgfCB1bmRlZmluZWQ7DQogICAgY29uc3RydWN0b3IoYmFyPzogc3RyaW5nIHwgdW5kZWZpbmVkKTsNCn0NCi8vIyBzb3VyY2VNYXBwaW5nVVJMPWRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LmQudHMubWFw,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZGVjbGFyYXRpb25FbWl0UGFyYW1ldGVyUHJvcGVydHkuZC50cyIsInNvdXJjZVJvb3QiOiIiLCJzb3VyY2VzIjpbImRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LnRzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLHFCQUFhLEdBQUc7SUFDSyxHQUFHLENBQUMsRUFBRSxNQUFNO2dCQUFaLEdBQUcsQ0FBQyxFQUFFLE1BQU0sWUFBQTtDQUVoQyJ9,ZXhwb3J0IGNsYXNzIEZvbyB7CiAgY29uc3RydWN0b3IocHVibGljIGJhcj86IHN0cmluZykgewogIH0KfQo=
+
diff --git a/...s/baselines/reference/isolated-declarations/auto-fixed/diff/optionalMethods.d.ts.map.diff b/...s/baselines/reference/isolated-declarations/auto-fixed/diff/optionalMethods.d.ts.map.diff
@@ -0,0 +1,16 @@
+// [[Reason: Sourcemap is more detailed]] ////
+
+//// [tests/cases/conformance/types/namedTypes/optionalMethods.ts] ////
+
+===================================================================
+--- TSC	declarations
++++ DTE	declarations
+@@ -1,6 +1,6 @@
+
+ //// [optionalMethods.d.ts.map]
+-{"version":3,"file":"optionalMethods.d.ts","sourceRoot":"","sources":["optionalMethods.ts"],"names":[],"mappings":"AAAA,UAAU,GAAG;IACT,CAAC,EAAE,MAAM,CAAC;IACV,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,IAAI,MAAM,CAAC;IACZ,CAAC,CAAC,IAAI,MAAM,CAAC;CAChB;AAED,iBAAS,KAAK,CAAC,CAAC,EAAE,GAAG,GAAG,IAAI,CAQ3B;AAED,cAAM,GAAG;IAIc,CAAC,CAAC;IAAiB,CAAC;IAHvC,CAAC,EAAE,MAAM,CAAC;IACV,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,CAAC,qBAAK;gBACY,CAAC,CAAC,oBAAQ,EAAS,CAAC,SAAK;IAC5C,CAAC,IAAI,MAAM;IAGX,CAAC,CAAC,IAAI,MAAM;IACZ,CAAC,CAAC,IAAI,MAAM;CAGf;AAED,iBAAS,KAAK,CAAC,CAAC,EAAE,GAAG,GAAG,IAAI,CAa3B;AAED,cAAM,IAAI;IACN,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,CAAC,IAAI,MAAM;CACf;AAED,cAAM,OAAQ,SAAQ,IAAI;IACtB,CAAC,SAAK;IACN,CAAC,IAAI,MAAM;CACd"}
++{"version":3,"file":"optionalMethods.d.ts","sourceRoot":"","sources":["optionalMethods.ts"],"names":[],"mappings":"AAAA,UAAU,GAAG;IACT,CAAC,EAAE,MAAM,CAAC;IACV,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,IAAI,MAAM,CAAC;IACZ,CAAC,CAAC,IAAI,MAAM,CAAC;CAChB;AAED,iBAAS,KAAK,CAAC,CAAC,EAAE,GAAG,GAAG,IAAI,CAQ3B;AAED,cAAM,GAAG;IAIc,CAAC,CAAC,EAAE,MAAM;IAAS,CAAC;IAHvC,CAAC,EAAE,MAAM,CAAC;IACV,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,CAAC,qBAAK;gBACY,CAAC,CAAC,EAAE,MAAM,YAAA,EAAS,CAAC,SAAK;IAC5C,CAAC,IAAI,MAAM;IAGX,CAAC,CAAC,IAAI,MAAM;IACZ,CAAC,CAAC,IAAI,MAAM;CAGf;AAED,iBAAS,KAAK,CAAC,CAAC,EAAE,GAAG,GAAG,IAAI,CAa3B;AAED,cAAM,IAAI;IACN,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,CAAC,IAAI,MAAM;CACf;AAED,cAAM,OAAQ,SAAQ,IAAI;IACtB,CAAC,SAAK;IACN,CAAC,IAAI,MAAM;CACd"}
+
+-//// https://sokra.github.io/source-map-visualization#base64,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,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,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
++//// https://sokra.github.io/source-map-visualization#base64,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,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,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
+
diff --git a/.../reference/isolated-declarations/auto-fixed/dte/declarationEmitParameterProperty.d.ts.map b/.../reference/isolated-declarations/auto-fixed/dte/declarationEmitParameterProperty.d.ts.map
@@ -0,0 +1,23 @@
+//// [tests/cases/compiler/declarationEmitParameterProperty.ts] ////
+
+
+
+/// [Declarations] ////
+
+
+
+//// [declarationEmitParameterProperty.d.ts]
+export declare class Foo {
+    bar?: string | undefined;
+    constructor(bar?: string | undefined);
+}
+//# sourceMappingURL=declarationEmitParameterProperty.d.ts.map
+
+/// [Declarations Maps] ////
+
+
+//// [declarationEmitParameterProperty.d.ts.map]
+{"version":3,"file":"declarationEmitParameterProperty.d.ts","sourceRoot":"","sources":["declarationEmitParameterProperty.ts"],"names":[],"mappings":"AAAA,qBAAa,GAAG;IACK,GAAG,CAAC,EAAE,MAAM;gBAAZ,GAAG,CAAC,EAAE,MAAM,YAAA;CAEhC"}
+
+//// https://sokra.github.io/source-map-visualization#base64,ZXhwb3J0IGRlY2xhcmUgY2xhc3MgRm9vIHsNCiAgICBiYXI/OiBzdHJpbmcgfCB1bmRlZmluZWQ7DQogICAgY29uc3RydWN0b3IoYmFyPzogc3RyaW5nIHwgdW5kZWZpbmVkKTsNCn0NCi8vIyBzb3VyY2VNYXBwaW5nVVJMPWRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LmQudHMubWFw,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZGVjbGFyYXRpb25FbWl0UGFyYW1ldGVyUHJvcGVydHkuZC50cyIsInNvdXJjZVJvb3QiOiIiLCJzb3VyY2VzIjpbImRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LnRzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLHFCQUFhLEdBQUc7SUFDSyxHQUFHLENBQUMsRUFBRSxNQUFNO2dCQUFaLEdBQUcsQ0FBQyxFQUFFLE1BQU0sWUFBQTtDQUVoQyJ9,ZXhwb3J0IGNsYXNzIEZvbyB7CiAgY29uc3RydWN0b3IocHVibGljIGJhcj86IHN0cmluZykgewogIH0KfQo=
+
diff --git a/tests/baselines/reference/isolated-declarations/auto-fixed/dte/optionalMethods.d.ts.map b/tests/baselines/reference/isolated-declarations/auto-fixed/dte/optionalMethods.d.ts.map
@@ -0,0 +1,46 @@
+//// [tests/cases/conformance/types/namedTypes/optionalMethods.ts] ////
+
+
+
+/// [Declarations] ////
+
+
+
+//// [optionalMethods.d.ts]
+interface Foo {
+    a: number;
+    b?: number;
+    f(): number;
+    g?(): number;
+}
+declare function test1(x: Foo): void;
+declare class Bar {
+    d?: number | undefined;
+    e: number;
+    a: number;
+    b?: number;
+    c?: number | undefined;
+    constructor(d?: number | undefined, e?: number);
+    f(): number;
+    g?(): number;
+    h?(): number;
+}
+declare function test2(x: Bar): void;
+declare class Base {
+    a?: number;
+    f?(): number;
+}
+declare class Derived extends Base {
+    a: number;
+    f(): number;
+}
+//# sourceMappingURL=optionalMethods.d.ts.map
+
+/// [Declarations Maps] ////
+
+
+//// [optionalMethods.d.ts.map]
+{"version":3,"file":"optionalMethods.d.ts","sourceRoot":"","sources":["optionalMethods.ts"],"names":[],"mappings":"AAAA,UAAU,GAAG;IACT,CAAC,EAAE,MAAM,CAAC;IACV,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,IAAI,MAAM,CAAC;IACZ,CAAC,CAAC,IAAI,MAAM,CAAC;CAChB;AAED,iBAAS,KAAK,CAAC,CAAC,EAAE,GAAG,GAAG,IAAI,CAQ3B;AAED,cAAM,GAAG;IAIc,CAAC,CAAC,EAAE,MAAM;IAAS,CAAC;IAHvC,CAAC,EAAE,MAAM,CAAC;IACV,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,CAAC,qBAAK;gBACY,CAAC,CAAC,EAAE,MAAM,YAAA,EAAS,CAAC,SAAK;IAC5C,CAAC,IAAI,MAAM;IAGX,CAAC,CAAC,IAAI,MAAM;IACZ,CAAC,CAAC,IAAI,MAAM;CAGf;AAED,iBAAS,KAAK,CAAC,CAAC,EAAE,GAAG,GAAG,IAAI,CAa3B;AAED,cAAM,IAAI;IACN,CAAC,CAAC,EAAE,MAAM,CAAC;IACX,CAAC,CAAC,IAAI,MAAM;CACf;AAED,cAAM,OAAQ,SAAQ,IAAI;IACtB,CAAC,SAAK;IACN,CAAC,IAAI,MAAM;CACd"}
+
+//// https://sokra.github.io/source-map-visualization#base64,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,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,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
+
diff --git a/.../reference/isolated-declarations/auto-fixed/tsc/declarationEmitParameterProperty.d.ts.map b/.../reference/isolated-declarations/auto-fixed/tsc/declarationEmitParameterProperty.d.ts.map
@@ -0,0 +1,23 @@
+//// [tests/cases/compiler/declarationEmitParameterProperty.ts] ////
+
+
+
+/// [Declarations] ////
+
+
+
+//// [declarationEmitParameterProperty.d.ts]
+export declare class Foo {
+    bar?: string | undefined;
+    constructor(bar?: string | undefined);
+}
+//# sourceMappingURL=declarationEmitParameterProperty.d.ts.map
+
+/// [Declarations Maps] ////
+
+
+//// [declarationEmitParameterProperty.d.ts.map]
+{"version":3,"file":"declarationEmitParameterProperty.d.ts","sourceRoot":"","sources":["declarationEmitParameterProperty.ts"],"names":[],"mappings":"AAAA,qBAAa,GAAG;IACK,GAAG,CAAC;gBAAJ,GAAG,CAAC,oBAAQ;CAEhC"}
+
+//// https://sokra.github.io/source-map-visualization#base64,ZXhwb3J0IGRlY2xhcmUgY2xhc3MgRm9vIHsNCiAgICBiYXI/OiBzdHJpbmcgfCB1bmRlZmluZWQ7DQogICAgY29uc3RydWN0b3IoYmFyPzogc3RyaW5nIHwgdW5kZWZpbmVkKTsNCn0NCi8vIyBzb3VyY2VNYXBwaW5nVVJMPWRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LmQudHMubWFw,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZGVjbGFyYXRpb25FbWl0UGFyYW1ldGVyUHJvcGVydHkuZC50cyIsInNvdXJjZVJvb3QiOiIiLCJzb3VyY2VzIjpbImRlY2xhcmF0aW9uRW1pdFBhcmFtZXRlclByb3BlcnR5LnRzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBLHFCQUFhLEdBQUc7SUFDSyxHQUFHLENBQUM7Z0JBQUosR0FBRyxDQUFDLG9CQUFRO0NBRWhDIn0=,ZXhwb3J0IGNsYXNzIEZvbyB7CiAgY29uc3RydWN0b3IocHVibGljIGJhcj86IHN0cmluZykgewogIH0KfQo=
+