You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
3.1 KiB
75 lines
3.1 KiB
/*
|
|
* Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
|
|
*/
|
|
package org.jetbrains.java.decompiler.util;
|
|
|
|
import org.jetbrains.java.decompiler.code.CodeConstants;
|
|
import org.jetbrains.java.decompiler.main.ClassesProcessor;
|
|
import org.jetbrains.java.decompiler.main.DecompilerContext;
|
|
import org.jetbrains.java.decompiler.main.extern.IFernflowerPreferences;
|
|
import org.jetbrains.java.decompiler.modules.decompiler.ExprProcessor;
|
|
|
|
import java.util.Arrays;
|
|
import java.util.HashSet;
|
|
|
|
public class TextUtil {
|
|
private static final HashSet<String> KEYWORDS = new HashSet<>(Arrays.asList(
|
|
"abstract", "default", "if", "private", "this", "boolean", "do", "implements", "protected", "throw", "break", "double", "import",
|
|
"public", "throws", "byte", "else", "instanceof", "return", "transient", "case", "extends", "int", "short", "try", "catch", "final",
|
|
"interface", "static", "void", "char", "finally", "long", "strictfp", "volatile", "class", "float", "native", "super", "while",
|
|
"const", "for", "new", "switch", "continue", "goto", "package", "synchronized", "true", "false", "null", "assert"));
|
|
|
|
public static void writeQualifiedSuper(TextBuffer buf, String qualifier) {
|
|
ClassesProcessor.ClassNode classNode = (ClassesProcessor.ClassNode)DecompilerContext.getProperty(DecompilerContext.CURRENT_CLASS_NODE);
|
|
if (!qualifier.equals(classNode.classStruct.qualifiedName)) {
|
|
buf.append(DecompilerContext.getImportCollector().getShortName(ExprProcessor.buildJavaClassName(qualifier))).append('.');
|
|
}
|
|
buf.append("super");
|
|
}
|
|
|
|
public static String getIndentString(int length) {
|
|
if (length == 0) return "";
|
|
StringBuilder buf = new StringBuilder();
|
|
String indent = (String)DecompilerContext.getProperty(IFernflowerPreferences.INDENT_STRING);
|
|
append(buf, indent, length);
|
|
return buf.toString();
|
|
}
|
|
|
|
public static void append(StringBuilder buf, String string, int times) {
|
|
while (times-- > 0) buf.append(string);
|
|
}
|
|
|
|
public static boolean isPrintableUnicode(char c) {
|
|
int t = Character.getType(c);
|
|
return t != Character.UNASSIGNED && t != Character.LINE_SEPARATOR && t != Character.PARAGRAPH_SEPARATOR &&
|
|
t != Character.CONTROL && t != Character.FORMAT && t != Character.PRIVATE_USE && t != Character.SURROGATE;
|
|
}
|
|
|
|
public static String charToUnicodeLiteral(int value) {
|
|
String sTemp = Integer.toHexString(value);
|
|
sTemp = ("0000" + sTemp).substring(sTemp.length());
|
|
return "\\u" + sTemp;
|
|
}
|
|
|
|
public static boolean isValidIdentifier(String id, int version) {
|
|
return isJavaIdentifier(id) && !isKeyword(id, version);
|
|
}
|
|
|
|
private static boolean isJavaIdentifier(String id) {
|
|
if (id.isEmpty() || !Character.isJavaIdentifierStart(id.charAt(0))) {
|
|
return false;
|
|
}
|
|
|
|
for (int i = 1; i < id.length(); i++) {
|
|
if (!Character.isJavaIdentifierPart(id.charAt(i))) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private static boolean isKeyword(String id, int version) {
|
|
return KEYWORDS.contains(id) || version > CodeConstants.BYTECODE_JAVA_5 && "enum".equals(id);
|
|
}
|
|
} |