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Readonly type literal members

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This commit is contained in:
Arthur Ozga 2017-04-19 10:36:40 -07:00
parent 7e2517975c
commit 55388d16b4
3 changed files with 14 additions and 7 deletions
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9
src/compiler/checker.ts
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@ -2602,14 +2602,17 @@ namespace ts {
}
}
else {
// TODO(aozgaa): should we create a node with explicit or implict any?
const propertyTypeNode = propertyType ? typeToTypeNodeHelper(propertyType, context) : createKeywordTypeNode(SyntaxKind.AnyKeyword);
typeElements.push(createPropertySignature(
const modifiers = isReadonlySymbol(propertySymbol) ? [createToken(SyntaxKind.ReadonlyKeyword)] : undefined;
const propertySignature = createPropertySignature(
modifiers,
propertyName,
optionalToken,
propertyTypeNode,
/*initializer*/undefined));
/*initializer*/undefined);
typeElements.push(propertySignature);
}
}
return typeElements.length ? typeElements : undefined;

10
src/compiler/factory.ts
View file

@ -480,8 +480,9 @@ namespace ts {
// Signature elements
export function createPropertySignature(name: PropertyName | string, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): PropertySignature {
export function createPropertySignature(modifiers: Modifier[] | undefined, name: PropertyName | string, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined): PropertySignature {
const propertySignature = createSynthesizedNode(SyntaxKind.PropertySignature) as PropertySignature;
propertySignature.modifiers = asNodeArray(modifiers);
propertySignature.name = asName(name);
propertySignature.questionToken = questionToken;
propertySignature.type = type;
@ -489,12 +490,13 @@ namespace ts {
return propertySignature;
}
export function updatePropertySignature(node: PropertySignature, name: PropertyName, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined) {
return node.name !== name
export function updatePropertySignature(node: PropertySignature, modifiers: Modifier[] | undefined, name: PropertyName, questionToken: QuestionToken | undefined, type: TypeNode | undefined, initializer: Expression | undefined) {
return node.modifiers !== modifiers
|| node.name !== name
|| node.questionToken !== questionToken
|| node.type !== type
|| node.initializer !== initializer
? updateNode(createPropertySignature(name, questionToken, type, initializer), node)
? updateNode(createPropertySignature(modifiers, name, questionToken, type, initializer), node)
: node;
}

2
src/compiler/visitor.ts
View file

@ -355,6 +355,8 @@ namespace ts {
case SyntaxKind.PropertySignature:
return updatePropertySignature((<PropertySignature>node),
// TODO: tokenVisitor or visitor for a nodearray of tokens?
nodesVisitor((<PropertySignature>node).modifiers, visitor, isToken),
visitNode((<PropertySignature>node).name, visitor, isPropertyName),
visitNode((<PropertySignature>node).questionToken, tokenVisitor, isToken),
visitNode((<PropertySignature>node).type, visitor, isTypeNode),