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/*
* VariableBinder.java
*
* comments here.
*
* @author Michiaki Tatsubori
* @version %VERSION% %DATE%
* @see java.lang.Object
*
* COPYRIGHT 1998 by Michiaki Tatsubori, ALL RIGHTS RESERVED.
*/
package io.devnulllabs.openjava.ptree.util;
import io.devnulllabs.openjava.mop.Environment;
import io.devnulllabs.openjava.mop.OJClass;
import io.devnulllabs.openjava.mop.OJClassNotFoundException;
import io.devnulllabs.openjava.ptree.ForStatement;
import io.devnulllabs.openjava.ptree.Parameter;
import io.devnulllabs.openjava.ptree.ParseTreeException;
import io.devnulllabs.openjava.ptree.Statement;
import io.devnulllabs.openjava.ptree.TypeName;
import io.devnulllabs.openjava.ptree.VariableDeclaration;
import io.devnulllabs.openjava.ptree.VariableDeclarator;
import io.devnulllabs.openjava.tools.DebugOut;
/**
* The class <code>VariableBinder</code>
* <p>
* For example
* <pre>
* </pre>
* <p>
*
* @author Michiaki Tatsubori
* @version 1.0
* @since $Id: VariableBinder.java,v 1.2 2003/02/19 02:55:00 tatsubori Exp $
* @see java.lang.Object
*/
public class VariableBinder extends ScopeHandler {
public VariableBinder(Environment env) {
super(env);
}
public Statement evaluateDown(VariableDeclaration ptree)
throws ParseTreeException {
super.evaluateDown(ptree);
bindLocalVariable(ptree, getEnvironment());
return ptree;
}
public Statement evaluateDown(ForStatement ptree)
throws ParseTreeException {
super.evaluateDown(ptree);
TypeName tspec = ptree.getInitDeclType();
if (tspec == null)
return ptree;
VariableDeclarator[] vdecls = ptree.getInitDecls();
bindForInit(tspec, vdecls, getEnvironment());
return ptree;
}
public Parameter evaluateDown(Parameter ptree) throws ParseTreeException {
super.evaluateDown(ptree);
bindParameter(ptree, getEnvironment());
return ptree;
}
private static void bindLocalVariable(
VariableDeclaration var_decl,
Environment env) {
String type = var_decl.getTypeSpecifier().toString();
String name = var_decl.getVariable();
bindName(env, type, name);
}
private static void bindForInit(
TypeName tspec,
VariableDeclarator[] vdecls,
Environment env) {
for (int i = 0; i < vdecls.length; ++i) {
String type = tspec.toString() + vdecls[i].dimensionString();
String name = vdecls[i].getVariable();
bindName(env, type, name);
}
}
private static void bindParameter(Parameter param, Environment env) {
String type = param.getTypeSpecifier().toString();
String name = param.getVariable();
bindName(env, type, name);
}
private static void bindName(Environment env, String type, String name) {
String qtypename = env.toQualifiedName(type);
try {
OJClass clazz = env.lookupClass(qtypename);
if (clazz == null)
clazz = OJClass.forName(qtypename);
env.bindVariable(name, clazz);
DebugOut.println("binds variable\t" + name + "\t: " + qtypename);
} catch (OJClassNotFoundException e) {
System.err.println(
"VariableBinder.bindName() "
+ e.toString()
+ " : "
+ qtypename);
System.err.println(env);
}
}
}
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