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/*******************************************************************************
* Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report;
import org.objectweb.asm.Type;
/**
* Names for the Java language.
*/
public class JavaNames implements ILanguageNames {
public String getPackageName(final String vmname) {
if (vmname.length() == 0) {
return "default";
}
return vmname.replace('/', '.');
}
private String getClassName(final String vmname) {
final int pos = vmname.lastIndexOf('/');
final String name = pos == -1 ? vmname : vmname.substring(pos + 1);
return name.replace('$', '.');
}
private boolean isAnonymous(final String vmname) {
final int dollarPosition = vmname.lastIndexOf('$');
if (dollarPosition == -1) {
return false;
}
final int internalPosition = dollarPosition + 1;
if (internalPosition == vmname.length()) {
// shouldn't happen for classes compiled from Java source
return false;
}
// assume non-identifier start character for anonymous classes
final char start = vmname.charAt(internalPosition);
return !Character.isJavaIdentifierStart(start);
}
public String getClassName(final String vmname, final String vmsignature,
final String vmsuperclass, final String[] vminterfaces) {
if (isAnonymous(vmname)) {
final String vmsupertype;
if (vminterfaces != null && vminterfaces.length > 0) {
vmsupertype = vminterfaces[0];
} else if (vmsuperclass != null) {
vmsupertype = vmsuperclass;
} else {
vmsupertype = null;
}
// append Eclipse style label, e.g. "Foo.new Bar() {...}"
if (vmsupertype != null) {
final StringBuilder builder = new StringBuilder();
final String vmenclosing = vmname.substring(0,
vmname.lastIndexOf('$'));
builder.append(getClassName(vmenclosing)).append(".new ")
.append(getClassName(vmsupertype)).append("() {...}");
return builder.toString();
}
}
return getClassName(vmname);
}
public String getQualifiedClassName(final String vmname) {
return vmname.replace('/', '.').replace('$', '.');
}
public String getMethodName(final String vmclassname,
final String vmmethodname, final String vmdesc,
final String vmsignature) {
return getMethodName(vmclassname, vmmethodname, vmdesc, false);
}
public String getQualifiedMethodName(final String vmclassname,
final String vmmethodname, final String vmdesc,
final String vmsignature) {
return getQualifiedClassName(vmclassname) + "."
+ getMethodName(vmclassname, vmmethodname, vmdesc, true);
}
private String getMethodName(final String vmclassname,
final String vmmethodname, final String vmdesc,
final boolean qualifiedParams) {
if ("<clinit>".equals(vmmethodname)) {
return "static {...}";
}
final StringBuilder result = new StringBuilder();
if ("<init>".equals(vmmethodname)) {
if (isAnonymous(vmclassname)) {
return "{...}";
} else {
result.append(getClassName(vmclassname));
}
} else {
result.append(vmmethodname);
}
result.append('(');
final Type[] arguments = Type.getArgumentTypes(vmdesc);
boolean comma = false;
for (final Type arg : arguments) {
if (comma) {
result.append(", ");
} else {
comma = true;
}
if (qualifiedParams) {
result.append(getQualifiedClassName(arg.getClassName()));
} else {
result.append(getShortTypeName(arg));
}
}
result.append(')');
return result.toString();
}
private String getShortTypeName(final Type type) {
final String name = type.getClassName();
final int pos = name.lastIndexOf('.');
final String shortName = pos == -1 ? name : name.substring(pos + 1);
return shortName.replace('$', '.');
}
}
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