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reorder if

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This commit is contained in:
Wesley Wigham 2015-12-09 16:06:21 -08:00
parent 82386564d4
commit bc01b16057
1 changed files with 7 additions and 6 deletions
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13
src/compiler/checker.ts
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@ -6038,12 +6038,12 @@ namespace ts {
function getWidenedType(type: Type): Type {
if (type.flags & TypeFlags.RequiresWidening) {
if (type.flags & TypeFlags.PredicateType) {
return booleanType;
}
if (type.flags & (TypeFlags.Undefined | TypeFlags.Null)) {
return anyType;
}
if (type.flags & TypeFlags.PredicateType) {
return booleanType;
}
if (type.flags & TypeFlags.ObjectLiteral) {
return getWidenedTypeOfObjectLiteral(type);
}
@ -14329,15 +14329,16 @@ namespace ts {
}
function checkTypePredicate(node: TypePredicateNode) {
if (node.parameterName.kind === SyntaxKind.Identifier && !isInLegalParameterTypePredicatePosition(node)) {
const { parameterName } = node;
if (parameterName.kind === SyntaxKind.Identifier && !isInLegalParameterTypePredicatePosition(node)) {
error(node, Diagnostics.A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods);
}
else if (node.parameterName.kind === SyntaxKind.ThisType) {
else if (parameterName.kind === SyntaxKind.ThisType) {
if (!isInLegalThisTypePredicatePosition(node)) {
error(node, Diagnostics.A_this_based_type_predicate_is_only_allowed_within_a_class_or_interface_s_members_get_accessors_or_return_type_positions_for_functions_and_methods);
}
else {
getTypeFromThisTypeNode(node.parameterName as ThisTypeNode);
getTypeFromThisTypeNode(parameterName as ThisTypeNode);
}
}
}