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/*******************************************************************************
* Copyright (c) 2005, 2007 committers of openArchitectureWare and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* committers of openArchitectureWare - initial API and implementation
*******************************************************************************/
package org.eclipse.internal.xpand2.ast;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.internal.xpand2.model.XpandDefinition;
import org.eclipse.internal.xpand2.model.XpandResource;
import org.eclipse.internal.xtend.expression.ast.DeclaredParameter;
import org.eclipse.internal.xtend.expression.ast.Identifier;
import org.eclipse.internal.xtend.expression.ast.SyntaxElement;
import org.eclipse.xpand2.XpandExecutionContext;
import org.eclipse.xtend.expression.AnalysationIssue;
import org.eclipse.xtend.expression.ExecutionContext;
import org.eclipse.xtend.expression.Variable;
import org.eclipse.xtend.typesystem.Type;
public abstract class AbstractDefinition extends SyntaxElement implements XpandDefinition {
private Template owner = null;
private DeclaredParameter[] params;
private Identifier name;
private Identifier type;
private Statement[] body;
private String _stringRepresentation = null;
protected boolean wildParams = false;
public AbstractDefinition(final Identifier name, final Identifier type, final DeclaredParameter[] params,
final Statement[] body) {
this.name = name;
this.type = type;
this.params = params;
this.body = body;
}
public XpandResource getOwner() {
return owner;
}
public void setOwner(final Template owner) {
this.owner = owner;
}
public DeclaredParameter[] getParams() {
return params;
}
public List<DeclaredParameter> getParamsAsList() {
return Arrays.asList(params);
}
public Identifier getType() {
return type;
}
public String getTargetType() {
return type.getValue();
}
public Identifier getDefName() {
return name;
}
public String getName() {
return name.getValue();
}
public String getQualifiedName() {
if (getFileName() != null) {
String prefix = getFileName().replaceAll("/", "::");
prefix = prefix.substring(0, prefix.length() - 4);
return prefix + "::" + getName();
}
return getName();
}
public String getParamString(boolean typesOnly) {
if (params == null || params.length == 0)
return wildParams ? "(*)" : "";
final StringBuffer buff = new StringBuffer("(");
for (int i = 0; i < params.length; i++) {
final DeclaredParameter p = params[i];
buff.append(p.getType().getValue());
if (!typesOnly) {
buff.append(" ").append(p.getName().getValue());
}
if (i + 1 < params.length) {
buff.append(",");
}
}
if (wildParams) {
buff.append(",*");
}
return buff.append(")").toString();
}
public Statement[] getBody() {
return body;
}
public List<Statement> getBodyAsList() {
return Arrays.asList(body);
}
public void analyze(XpandExecutionContext ctx, final Set<AnalysationIssue> issues) {
try {
if (ctx.getCallback() != null) {
ctx.getCallback().pre(this, ctx);
}
final Type thisType = ctx.getTypeForName(getType().getValue());
if (thisType == null) {
issues.add(new AnalysationIssue(AnalysationIssue.TYPE_NOT_FOUND, "Couldn't find "
+ getType().getValue(), getType()));
}
ctx = (XpandExecutionContext) ctx.cloneWithVariable(new Variable(ExecutionContext.IMPLICIT_VARIABLE,
thisType));
for (int i = 0; i < params.length; i++) {
final DeclaredParameter param = params[i];
Type paramType = ctx.getTypeForName(param.getType().getValue());
if (paramType == null) {
issues.add(new AnalysationIssue(AnalysationIssue.TYPE_NOT_FOUND, "Couldn't find "
+ param.getType().getValue(), param.getType()));
paramType = ctx.getObjectType();
}
final String name = param.getName().getValue();
ctx = (XpandExecutionContext) ctx.cloneWithVariable(new Variable(name, paramType));
}
for (int i = 0; i < getBody().length; i++) {
Statement stmt = getBody()[i];
try {
stmt.analyze(ctx, issues);
}
catch (RuntimeException ex) {
Map<String, Object> info = new HashMap<String, Object>();
info.put("body", stmt);
ctx.handleRuntimeException(ex, this, info);
}
}
}
finally {
if (ctx.getCallback() != null) {
ctx.getCallback().post(null);
}
}
}
public void evaluate(XpandExecutionContext ctx) {
try {
if (ctx.getCallback() != null) {
ctx.getCallback().pre(this, ctx);
}
ctx = (XpandExecutionContext) ctx.cloneWithResource(getOwner());
for (int i = 0; i < getBody().length; i++) {
Statement stmt = getBody()[i];
try {
stmt.evaluate(ctx);
}
catch (RuntimeException ex) {
Map<String, Object> info = new HashMap<String, Object>();
info.put("body", stmt);
ctx.handleRuntimeException(ex, this, info);
}
}
}
finally {
if (ctx.getCallback() != null) {
ctx.getCallback().post(null);
}
}
}
@Override
public String toString() {
if (_stringRepresentation == null) {
_stringRepresentation = name.getValue() + getParamString(false) + " : " + getType().getValue();
}
return _stringRepresentation;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((toString() == null) ? 0 : toString().hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null || toString() == null)
return false;
if (getClass() != obj.getClass())
return false;
AbstractDefinition other = (AbstractDefinition) obj;
return toString().equals(other.toString());
}
}
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