mbien commented on code in PR #3240:
URL: https://github.com/apache/netbeans/pull/3240#discussion_r904278293
##########
java/java.hints/src/org/netbeans/modules/java/hints/perf/Tiny.java:
##########
@@ -462,36 +485,94 @@ public static ErrorDescription
redundantToString(HintContext ctx) {
suppressWarnings = "UnnecessaryTemporaryOnConversionFromString"
)
public static ErrorDescription unnecessaryTempFromString(HintContext ctx) {
- TypeMirror resType =
ctx.getInfo().getTrees().getTypeMirror(ctx.getPath());
- if (resType == null) {
- return null;
+
+ String type;
+ String method;
+
+ // determine if the destination is primitive
+ TypeMirror destType = getDestinationType(ctx, ctx.getPath());
+ TypeMirror srcType =
ctx.getInfo().getTrees().getTypeMirror(ctx.getPath());
+
+ if (destType instanceof PrimitiveType && !(srcType instanceof
PrimitiveType)) {
+ srcType = ctx.getInfo().getTypes().unboxedType(srcType);
+ String[] replacement = PARSE_METHODS.get(srcType.getKind());
+ type = replacement[0];
+ method = replacement[1];
+ } else if (!(destType instanceof PrimitiveType) && srcType instanceof
PrimitiveType) {
+ type = PARSE_METHODS.get(srcType.getKind())[0];
+ method = "valueOf"; // NOI18N
+ } else {
+ return null; // nothing to do, a different rule handles
.intValue() boxing problems
}
- if (resType.getKind() == TypeKind.BOOLEAN) {
- if
(ctx.getInfo().getSourceVersion().compareTo(SourceVersion.RELEASE_5) < 0) {
- // might alter new Boolean($v) to Boolean.valueOf($v), but
that's all we can do. JDK < 5 has no
- // primitive-valued pasre* method for booleans.
- return null;
- }
+
+ if (srcType.getKind() == TypeKind.BOOLEAN &&
ctx.getInfo().getSourceVersion().compareTo(SourceVersion.RELEASE_5) < 0) {
+ return null; // JDK < 5 has no primitive-valued pasre* method for
booleans.
}
- String[] arr = PARSE_METHODS.get(resType.getKind());
- if (arr == null) {
- return null; // just in case
+
+ Fix fix = JavaFixUtilities.rewriteFix(ctx,
Bundle.FIX_UnnecessaryTempFromString1(type, method), ctx.getPath(), type + "."
+ method + "($v)"); // NOI18N
+ return ErrorDescriptionFactory.forTree(ctx, ctx.getPath(),
Bundle.TEXT_UnnecessaryTempFromString(), fix); // NOI18N
+ }
+
+ private static TypeMirror getDestinationType(HintContext ctx, TreePath
path) {
+
+ TreePath parent = path.getParentPath();
+ Tree parentLeaf = parent.getLeaf();
+
+ Types types = ctx.getInfo().getTypes();
+ Trees trees = ctx.getInfo().getTrees();
+
+ if (parentLeaf instanceof MethodInvocationTree) {
+
+ MethodInvocationTree met = (MethodInvocationTree) parentLeaf;
+
+ int index = met.getArguments().indexOf(path.getLeaf());
+
+ TypeMirror method = trees.getElement(new TreePath(path,
met.getMethodSelect())).asType();
Review Comment:
the "destination type" is basically only needed to check if its a primitive
type or not. So even though I haven't figured out how to get a type mirror of a
constructor (NewClassTree), this will work just fine since generic types can't
be primitive (for now :)) - there is no need to resolve them here.
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