com.google.errorprone.bugpatterns.flogger.FloggerHelpers Maven / Gradle / Ivy
/*
* Copyright 2021 The Error Prone Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.errorprone.bugpatterns.flogger;
import static com.google.errorprone.util.ASTHelpers.getType;
import com.google.errorprone.VisitorState;
import com.sun.source.tree.Tree;
import com.sun.tools.javac.code.Type;
/** Analysis helpers for flogger. */
final class FloggerHelpers {
private static final char STRING_FORMAT = 's';
static char inferFormatSpecifier(Tree piece, VisitorState state) {
Type type = getType(piece);
return inferFormatSpecifier(type, state);
}
static char inferFormatSpecifier(Type type, VisitorState state) {
if (type == null) {
return STRING_FORMAT;
}
switch (state.getTypes().unboxedTypeOrType(type).getKind()) {
case INT:
case LONG:
return 'd';
case FLOAT:
case DOUBLE:
return 'g';
case BOOLEAN:
// %b is identical to %s in Flogger, but not in String.format, so it might be risky
// to train people to prefer it. (In format() a Boolean "null" becomes "false",)
return STRING_FORMAT;
default:
return STRING_FORMAT;
}
}
private FloggerHelpers() {}
}