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2 changes: 1 addition & 1 deletion src/compiler/checker.ts
Original file line numberDiff line numberDiff line change
Expand Up@@ -5981,7 +5981,7 @@ namespace ts {
typeParameter.default = targetDefault ? instantiateType(targetDefault, typeParameter.mapper) : noConstraintType;
}
else {
const defaultDeclaration = typeParameter.symbol && forEach(typeParameter.symbol.declarations, decl => isTypeParameter(decl) && decl.default);
const defaultDeclaration = typeParameter.symbol && forEach(typeParameter.symbol.declarations, decl => isTypeParameterDeclaration(decl) && decl.default);
typeParameter.default = defaultDeclaration ? getTypeFromTypeNode(defaultDeclaration) : noConstraintType;
}
}
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2 changes: 1 addition & 1 deletion src/compiler/utilities.ts
Original file line numberDiff line numberDiff line change
Expand Up@@ -4092,7 +4092,7 @@ namespace ts {

// Signature elements

export function isTypeParameter(node: Node): node is TypeParameterDeclaration {
export function isTypeParameterDeclaration(node: Node): node is TypeParameterDeclaration {
return node.kind === SyntaxKind.TypeParameter;
}

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28 changes: 14 additions & 14 deletions src/compiler/visitor.ts
Original file line numberDiff line numberDiff line change
Expand Up@@ -275,7 +275,7 @@ namespace ts {

case SyntaxKind.MethodSignature:
return updateMethodSignature(<MethodSignature>node,
nodesVisitor((<MethodSignature>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<MethodSignature>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<MethodSignature>node).parameters, visitor, isParameterDeclaration),
visitNode((<MethodSignature>node).type, visitor, isTypeNode),
visitNode((<MethodSignature>node).name, visitor, isPropertyName),
Expand All@@ -288,7 +288,7 @@ namespace ts {
visitNode((<MethodDeclaration>node).asteriskToken, tokenVisitor, isToken),
visitNode((<MethodDeclaration>node).name, visitor, isPropertyName),
visitNode((<MethodDeclaration>node).questionToken, tokenVisitor, isToken),
nodesVisitor((<MethodDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<MethodDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
visitParameterList((<MethodDeclaration>node).parameters, visitor, context, nodesVisitor),
visitNode((<MethodDeclaration>node).type, visitor, isTypeNode),
visitFunctionBody((<MethodDeclaration>node).body, visitor, context));
Expand DownExpand Up@@ -319,13 +319,13 @@ namespace ts {

case SyntaxKind.CallSignature:
return updateCallSignature(<CallSignatureDeclaration>node,
nodesVisitor((<CallSignatureDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<CallSignatureDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<CallSignatureDeclaration>node).parameters, visitor, isParameterDeclaration),
visitNode((<CallSignatureDeclaration>node).type, visitor, isTypeNode));

case SyntaxKind.ConstructSignature:
return updateConstructSignature(<ConstructSignatureDeclaration>node,
nodesVisitor((<ConstructSignatureDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<ConstructSignatureDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<ConstructSignatureDeclaration>node).parameters, visitor, isParameterDeclaration),
visitNode((<ConstructSignatureDeclaration>node).type, visitor, isTypeNode));

Expand All@@ -350,13 +350,13 @@ namespace ts {

case SyntaxKind.FunctionType:
return updateFunctionTypeNode(<FunctionTypeNode>node,
nodesVisitor((<FunctionTypeNode>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<FunctionTypeNode>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<FunctionTypeNode>node).parameters, visitor, isParameterDeclaration),
visitNode((<FunctionTypeNode>node).type, visitor, isTypeNode));

case SyntaxKind.ConstructorType:
return updateConstructorTypeNode(<ConstructorTypeNode>node,
nodesVisitor((<ConstructorTypeNode>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<ConstructorTypeNode>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<ConstructorTypeNode>node).parameters, visitor, isParameterDeclaration),
visitNode((<ConstructorTypeNode>node).type, visitor, isTypeNode));

Expand DownExpand Up@@ -400,7 +400,7 @@ namespace ts {
case SyntaxKind.MappedType:
return updateMappedTypeNode((<MappedTypeNode>node),
visitNode((<MappedTypeNode>node).readonlyToken, tokenVisitor, isToken),
visitNode((<MappedTypeNode>node).typeParameter, visitor, isTypeParameter),
visitNode((<MappedTypeNode>node).typeParameter, visitor, isTypeParameterDeclaration),
visitNode((<MappedTypeNode>node).questionToken, tokenVisitor, isToken),
visitNode((<MappedTypeNode>node).type, visitor, isTypeNode));

Expand DownExpand Up@@ -476,15 +476,15 @@ namespace ts {
nodesVisitor((<FunctionExpression>node).modifiers, visitor, isModifier),
visitNode((<FunctionExpression>node).asteriskToken, tokenVisitor, isToken),
visitNode((<FunctionExpression>node).name, visitor, isIdentifier),
nodesVisitor((<FunctionExpression>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<FunctionExpression>node).typeParameters, visitor, isTypeParameterDeclaration),
visitParameterList((<FunctionExpression>node).parameters, visitor, context, nodesVisitor),
visitNode((<FunctionExpression>node).type, visitor, isTypeNode),
visitFunctionBody((<FunctionExpression>node).body, visitor, context));

case SyntaxKind.ArrowFunction:
return updateArrowFunction(<ArrowFunction>node,
nodesVisitor((<ArrowFunction>node).modifiers, visitor, isModifier),
nodesVisitor((<ArrowFunction>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<ArrowFunction>node).typeParameters, visitor, isTypeParameterDeclaration),
visitParameterList((<ArrowFunction>node).parameters, visitor, context, nodesVisitor),
visitNode((<ArrowFunction>node).type, visitor, isTypeNode),
visitFunctionBody((<ArrowFunction>node).body, visitor, context));
Expand DownExpand Up@@ -543,7 +543,7 @@ namespace ts {
return updateClassExpression(<ClassExpression>node,
nodesVisitor((<ClassExpression>node).modifiers, visitor, isModifier),
visitNode((<ClassExpression>node).name, visitor, isIdentifier),
nodesVisitor((<ClassExpression>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<ClassExpression>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<ClassExpression>node).heritageClauses, visitor, isHeritageClause),
nodesVisitor((<ClassExpression>node).members, visitor, isClassElement));

Expand DownExpand Up@@ -676,7 +676,7 @@ namespace ts {
nodesVisitor((<FunctionDeclaration>node).modifiers, visitor, isModifier),
visitNode((<FunctionDeclaration>node).asteriskToken, tokenVisitor, isToken),
visitNode((<FunctionDeclaration>node).name, visitor, isIdentifier),
nodesVisitor((<FunctionDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<FunctionDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
visitParameterList((<FunctionDeclaration>node).parameters, visitor, context, nodesVisitor),
visitNode((<FunctionDeclaration>node).type, visitor, isTypeNode),
visitFunctionBody((<FunctionExpression>node).body, visitor, context));
Expand All@@ -686,7 +686,7 @@ namespace ts {
nodesVisitor((<ClassDeclaration>node).decorators, visitor, isDecorator),
nodesVisitor((<ClassDeclaration>node).modifiers, visitor, isModifier),
visitNode((<ClassDeclaration>node).name, visitor, isIdentifier),
nodesVisitor((<ClassDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<ClassDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<ClassDeclaration>node).heritageClauses, visitor, isHeritageClause),
nodesVisitor((<ClassDeclaration>node).members, visitor, isClassElement));

Expand All@@ -695,7 +695,7 @@ namespace ts {
nodesVisitor((<InterfaceDeclaration>node).decorators, visitor, isDecorator),
nodesVisitor((<InterfaceDeclaration>node).modifiers, visitor, isModifier),
visitNode((<InterfaceDeclaration>node).name, visitor, isIdentifier),
nodesVisitor((<InterfaceDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<InterfaceDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
nodesVisitor((<InterfaceDeclaration>node).heritageClauses, visitor, isHeritageClause),
nodesVisitor((<InterfaceDeclaration>node).members, visitor, isTypeElement));

Expand All@@ -704,7 +704,7 @@ namespace ts {
nodesVisitor((<TypeAliasDeclaration>node).decorators, visitor, isDecorator),
nodesVisitor((<TypeAliasDeclaration>node).modifiers, visitor, isModifier),
visitNode((<TypeAliasDeclaration>node).name, visitor, isIdentifier),
nodesVisitor((<TypeAliasDeclaration>node).typeParameters, visitor, isTypeParameter),
nodesVisitor((<TypeAliasDeclaration>node).typeParameters, visitor, isTypeParameterDeclaration),
visitNode((<TypeAliasDeclaration>node).type, visitor, isTypeNode));

case SyntaxKind.EnumDeclaration:
Expand Down