root/trunk/ProjectFortress/src/com/sun/fortress/compiler/index/CompilationUnitIndex.java @ 3760

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    4150 Network Circle, Santa Clara, California 95054, U.S.A.
    All rights reserved.

    U.S. Government Rights - Commercial software.
    Government users are subject to the Sun Microsystems, Inc. standard
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 ******************************************************************************/

package com.sun.fortress.compiler.index;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import com.sun.fortress.nodes.APIName;
import com.sun.fortress.nodes.CompilationUnit;
import com.sun.fortress.nodes.Id;
import com.sun.fortress.nodes.IdOrOpOrAnonymousName;
import com.sun.fortress.nodes.Import;
import com.sun.fortress.nodes.ImportedNames;
import com.sun.fortress.nodes.NodeAbstractVisitor_void;
import com.sun.fortress.nodes.Op;

import edu.rice.cs.plt.collect.CollectUtil;
import edu.rice.cs.plt.collect.Relation;

/** Comprises {@link ApiIndex} and {@link CompilationUnit}. */
public abstract class CompilationUnitIndex {

    private final CompilationUnit _ast;
    private final Map<Id, Variable> _variables;
    private final Relation<IdOrOpOrAnonymousName, Function> _functions;
    private final Set<ParametricOperator> _parametricOperators;
    private final Map<Id, TypeConsIndex> _typeConses;
    private final Map<Id, Dimension> _dimensions;
    private final Map<Id, Unit> _units;
    private final long _modifiedDate;

    public CompilationUnitIndex(CompilationUnit ast,
                                Map<Id, Variable> variables,
                                Relation<IdOrOpOrAnonymousName, Function> functions,
                                Set<ParametricOperator> parametricOperators,
                                Map<Id, TypeConsIndex> typeConses,
                                Map<Id, Dimension> dimensions,
                                Map<Id, Unit> units,
                                long modifiedDate) {
        _ast = ast;
        _variables = CollectUtil.immutable(variables);
        _functions = CollectUtil.immutable(functions);
        _parametricOperators = CollectUtil.immutable(parametricOperators);
        _typeConses = CollectUtil.immutable(
                          CollectUtil.union(typeConses,
                                  CollectUtil.union(dimensions, units)));
        _dimensions = CollectUtil.immutable(dimensions);
        _units = CollectUtil.immutable(units);
        _modifiedDate = modifiedDate;
    }

    public CompilationUnit ast() { return _ast; }

    public abstract Set<APIName> exports();

    public Set<APIName> imports() {
        final Set<APIName> result = new HashSet<APIName>();
        for (Import _import : ast().getImports()) {
            _import.accept(new NodeAbstractVisitor_void() {
                public void forImportedNames(ImportedNames that) {
                    result.add(that.getApiName());
                }
            });
        }
        return result;
    }

    public Map<Id, Variable> variables() { return _variables; }

    public Relation<IdOrOpOrAnonymousName, Function> functions() { return _functions; }

    public Set<ParametricOperator> parametricOperators() { return _parametricOperators; }

    public Map<Id, TypeConsIndex> typeConses() { return _typeConses; }

    public Map<Id, Dimension> dimensions() { return _dimensions; }

    public Map<Id, Unit> units() { return _units; }

    public long modifiedDate() { return _modifiedDate; }

    public boolean declared(IdOrOpOrAnonymousName name) {
        if ( name instanceof Id ) {
            Id id = (Id)name;
            return ( _variables.keySet().contains(id) ||
                     _functions.firstSet().contains(id) ||
                     _typeConses.keySet().contains(id) ||
                     _dimensions.keySet().contains(id) ||
                     _units.keySet().contains(id) );
        } else {
            if ( _functions.firstSet().contains(name) )
                return true;
            else {
                if ( name instanceof Op ) {
                    Op op = (Op)name;
                    for ( ParametricOperator opr : _parametricOperators ) {
                        if ( opr.name().getText().equals(op.getText()) )
                            return true;
                    }
                    return false;
                } else return false;
            }
        }
    }
}