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Checks for . and ?. fixed for namespaces, a liitle bit of logic added for "foo.1"

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This commit is contained in:
Andrey Breslav
2011-03-16 17:44:28 +03:00
parent 71610fb741
commit 1e0d077a73
1 changed files with 15 additions and 6 deletions
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idea/src/org/jetbrains/jet/lang/types/JetTypeInferrer.java
+15 -6
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@@ -176,11 +176,18 @@ public class JetTypeInferrer {
private void checkNullSafety(JetType receiverType, JetQualifiedExpression expression) {
if (receiverType != null) {
if (receiverType.isNullable() && expression.getOperationSign() == JetTokens.DOT) {
boolean namespaceType = receiverType instanceof NamespaceType;
boolean nullable = !namespaceType && receiverType.isNullable();
if (nullable && expression.getOperationSign() == JetTokens.DOT) {
semanticServices.getErrorHandler().genericError(expression.getOperationTokenNode(), "Only safe calls (?.) are allowed on a nullable receiver of type " + receiverType);
}
else if (!receiverType.isNullable() && expression.getOperationSign() == JetTokens.SAFE_ACCESS) {
semanticServices.getErrorHandler().genericWarning(expression.getOperationTokenNode(), "Unnecessary safe call on a non-null receiver of type " + receiverType);
else if (!nullable && expression.getOperationSign() == JetTokens.SAFE_ACCESS) {
if (namespaceType) {
semanticServices.getErrorHandler().genericError(expression.getOperationTokenNode(), "Safe calls are not allowed on namespaces");
}
else {
semanticServices.getErrorHandler().genericWarning(expression.getOperationTokenNode(), "Unnecessary safe call on a non-null receiver of type " + receiverType);
}
}
}
}
@@ -547,12 +554,14 @@ public class JetTypeInferrer {
JetType receiverType = getType(scope, receiverExpression, false);
if (receiverType != null) {
checkNullSafety(receiverType, expression);
if (selectorExpression != null) {
// TODO : review
if (selectorExpression instanceof JetSimpleNameExpression) {
JetScope compositeScope = new ScopeWithReceiver(scope, receiverType);
result = getType(compositeScope, selectorExpression, false);
}
else if (selectorExpression != null) {
// TODO : not a simple name -> resolve in scope, expect property type or a function type
throw new UnsupportedOperationException();
}
}
}