private static void addSuppressWarningsAll(
JCModifiers mods, JavacNode node, int pos, JCTree source) {
TreeMaker maker = node.getTreeMaker();
JCExpression suppressWarningsType = chainDots(node, "java", "lang", "SuppressWarnings");
JCLiteral allLiteral = maker.Literal("all");
suppressWarningsType.pos = pos;
allLiteral.pos = pos;
JCAnnotation annotation =
recursiveSetGeneratedBy(
maker.Annotation(suppressWarningsType, List.<JCExpression>of(allLiteral)), source);
annotation.pos = pos;
mods.annotations = mods.annotations.append(annotation);
}
/**
* Hacky fix for poor javac 6 literal parsing. javac 6 doesn't set the AST node start position
* correctly when a numeric literal is preceded by -. So we scan the source backwards starting at
* the provided start position, looking for whitespace, until we find the true start position.
* javac 7 gets this right.
*
* @return The actual start position of the literal. May be the same as the start position given
* by the tree node itself.
*/
public static int getActualStartPosition(JCLiteral tree, CharSequence source) {
// This only applies to negative numeric literals.
Object value = tree.getValue();
if ((value instanceof Number) && (((Number) value).doubleValue() < 0)) {
int start = tree.getStartPosition() - 1;
while (WHITESPACE_CHARS.matches(source.charAt(start))) {
start--;
}
if (source.charAt(start) == '-') {
return start;
}
}
return tree.getStartPosition();
}