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/*
* Copyright (C) 2012 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.eclipse.agent;
import static org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants.AccStatic;
import static org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants.AccVarargs;
import java.util.Arrays;
import org.eclipse.jdt.core.CompletionProposal;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.codeassist.CompletionEngine;
import org.eclipse.jdt.internal.codeassist.InternalCompletionProposal;
import org.eclipse.jdt.internal.codeassist.complete.CompletionOnMemberAccess;
import org.eclipse.jdt.internal.codeassist.complete.CompletionOnQualifiedNameReference;
import org.eclipse.jdt.internal.codeassist.complete.CompletionOnSingleNameReference;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
public class ExtensionMethodCompletionProposal extends InternalCompletionProposal {
public ExtensionMethodCompletionProposal(final int replacementOffset) {
super(CompletionProposal.METHOD_REF, replacementOffset - 1);
}
public void setMethodBinding(final MethodBinding method, final ASTNode node) {
MethodBinding original = method.original();
TypeBinding[] parameters = Arrays.copyOf(method.parameters, method.parameters.length);
method.parameters = Arrays.copyOfRange(method.parameters, 1, method.parameters.length);
// Add proposal parameter names, sometimes its still empty...
if (method.parameterNames != null && method.parameterNames.length > 0) {
setParameterNames(Arrays.copyOfRange(method.parameterNames, 1, method.parameterNames.length));
}
TypeBinding[] originalParameters = null;
if (original != method) {
originalParameters = Arrays.copyOf(method.original().parameters, method.original().parameters.length);
method.original().parameters = Arrays.copyOfRange(method.original().parameters, 1, method.original().parameters.length);
}
int length = method.parameters == null ? 0 : method.parameters.length;
char[][] parameterPackageNames = new char[length][];
char[][] parameterTypeNames = new char[length][];
for (int i = 0; i < length; i++) {
TypeBinding type = method.original().parameters[i];
parameterPackageNames[i] = type.qualifiedPackageName();
parameterTypeNames[i] = type.qualifiedSourceName();
}
char[] completion = CharOperation.concat(method.selector, new char[] { '(', ')' });
setDeclarationSignature(CompletionEngine.getSignature(method.declaringClass));
setSignature(CompletionEngine.getSignature(method));
if (original != method) {
setOriginalSignature(CompletionEngine.getSignature(original));
}
setDeclarationPackageName(method.declaringClass.qualifiedPackageName());
setDeclarationTypeName(method.declaringClass.qualifiedSourceName());
setParameterPackageNames(parameterPackageNames);
setParameterTypeNames(parameterTypeNames);
setPackageName(method.returnType.qualifiedPackageName());
setTypeName(method.returnType.qualifiedSourceName());
setName(method.selector);
setCompletion(completion);
setFlags(method.modifiers & (~AccStatic));
// Remove varargs flag if it is the only parameter
if (method.isVarargs() && length == 0) {
setFlags(getFlags() & (~AccVarargs));
}
int index = node.sourceEnd + 1;
if (node instanceof CompletionOnQualifiedNameReference) {
index -= ((CompletionOnQualifiedNameReference) node).completionIdentifier.length;
}
if (node instanceof CompletionOnMemberAccess) {
index -= ((CompletionOnMemberAccess) node).token.length;
}
if (node instanceof CompletionOnSingleNameReference) {
index -= ((CompletionOnSingleNameReference) node).token.length;
}
setReplaceRange(index, index);
setTokenRange(index, index);
setRelevance(100);
method.parameters = parameters;
if (original != method) {
method.original().parameters = originalParameters;
}
}
}
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