iSharkFly-Docs
/
java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

smaller methods

This commit is contained in:
Loredana Crusoveanu 2017-11-12 22:31:39 +02:00
parent b383d83bf4
commit 8e50444ba6
1 changed files with 56 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
core-java/src/main/java/com/baeldung/javac/SampleJavacPlugin.java
View File

@ -27,9 +27,8 @@ public class SampleJavacPlugin implements Plugin {
private static Set<String> TARGET_TYPES = new HashSet<>(Arrays.asList(
// Use only primitive types for simplicity
byte.class.getName(), short.class.getName(), char.class.getName(), int.class.getName(),
long.class.getName(), float.class.getName(), double.class.getName()
));
byte.class.getName(), short.class.getName(), char.class.getName(),
int.class.getName(), long.class.getName(), float.class.getName(), double.class.getName()));
@Override
public String getName() {
@ -49,7 +48,8 @@ public class SampleJavacPlugin implements Plugin {
if (e.getKind() != TaskEvent.Kind.PARSE) {
return;
}
e.getCompilationUnit().accept(new TreeScanner<Void, Void>() {
e.getCompilationUnit()
.accept(new TreeScanner<Void, Void>() {
@Override
public Void visitMethod(MethodTree method, Void v) {
List<VariableTree> parametersToInstrument = method.getParameters()
@ -88,37 +88,36 @@ public class SampleJavacPlugin implements Plugin {
private static JCTree.JCIf createCheck(VariableTree parameter, Context context) {
TreeMaker factory = TreeMaker.instance(context);
Names symbolsTable = Names.instance(context);
return factory.at(((JCTree) parameter).pos)
.If(factory.Parens(createIfCondition(factory, symbolsTable, parameter)),
createIfBlock(factory, symbolsTable, parameter),
null);
}
private static JCTree.JCBinary createIfCondition(TreeMaker factory, Names symbolsTable, VariableTree parameter) {
Name parameterId = symbolsTable.fromString(parameter.getName().toString());
return factory.Binary(JCTree.Tag.LE,
factory.Ident(parameterId),
factory.Literal(TypeTag.INT, 0));
}
private static JCTree.JCBlock createIfBlock(TreeMaker factory, Names symbolsTable, VariableTree parameter) {
String parameterName = parameter.getName().toString();
Name parameterId = symbolsTable.fromString(parameterName);
String errorMessagePrefix = String.format("Argument '%s' of type %s is marked by @%s but got '",
parameterName, parameter.getType(), Positive.class.getSimpleName());
String errorMessageSuffix = "' for it";
Name parameterId = symbolsTable.fromString(parameterName);
return factory.at(((JCTree) parameter).pos).If(
factory.Parens(
factory.Binary(
JCTree.Tag.LE,
factory.Ident(parameterId),
factory.Literal(TypeTag.INT, 0))
),
factory.Block(0, com.sun.tools.javac.util.List.of(
return factory.Block(0, com.sun.tools.javac.util.List.of(
factory.Throw(
factory.NewClass(
null,
nil(),
factory.Ident(
symbolsTable.fromString(IllegalArgumentException.class.getSimpleName())
),
com.sun.tools.javac.util.List.of(
factory.Binary(JCTree.Tag.PLUS,
factory.Binary(JCTree.Tag.PLUS,
factory.Literal(TypeTag.CLASS, errorMessagePrefix),
factory.NewClass(null, nil(),
factory.Ident(symbolsTable.fromString(IllegalArgumentException.class.getSimpleName())),
com.sun.tools.javac.util.List.of(factory.Binary(JCTree.Tag.PLUS,
factory.Binary(JCTree.Tag.PLUS, factory.Literal(TypeTag.CLASS, errorMessagePrefix),
factory.Ident(parameterId)),
factory.Literal(TypeTag.CLASS, errorMessageSuffix))),
null
)
)
)),
null
);
factory.Literal(TypeTag.CLASS, errorMessageSuffix))), null))));
}
}