+++ /dev/null
-package IR.Tree;
-import IR.*;
-import java.util.*;
-
-
-public class BuildIR {
- State state;
- public BuildIR(State state) {
- this.state=state;
- }
- public void buildtree() {
- for(Iterator it=state.parsetrees.iterator();it.hasNext();) {
- ParseNode pn=(ParseNode)it.next();
- parseFile(pn);
- }
- }
-
- /** Parse the classes in this file */
- public void parseFile(ParseNode pn) {
- NameDescriptor packages;
- Vector singleimports=new Vector();
- Vector multiimports=new Vector();
-
- ParseNode ipn=pn.getChild("imports").getChild("import_decls_list");
- if (ipn!=null) {
- ParseNodeVector pnv=ipn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode pnimport=pnv.elementAt(i);
- NameDescriptor nd=parseName(pnimport.getChild("name"));
- if (isNode(pnimport,"import_single"))
- singleimports.add(nd);
- else
- multiimports.add(nd);
- }
- }
- ParseNode ppn=pn.getChild("packages").getChild("package");
- if (ppn!=null) {
- packages=parseName(pn.getChild("name"));
- }
- ParseNode tpn=pn.getChild("type_declaration_list");
- if (tpn!=null) {
- ParseNodeVector pnv=tpn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode type_pn=pnv.elementAt(i);
- if (isEmpty(type_pn)) /* Skip the semicolon */
- continue;
- if (isNode(type_pn,"class_declaration")) {
- ClassDescriptor cn=parseTypeDecl(type_pn);
- state.addClass(cn);
- } else if (isNode(type_pn,"task_declaration")) {
- TaskDescriptor td=parseTaskDecl(type_pn);
- state.addTask(td);
- } else {
- throw new Error(type_pn.getLabel());
- }
- }
- }
- }
-
- public TaskDescriptor parseTaskDecl(ParseNode pn) {
- TaskDescriptor td=new TaskDescriptor(pn.getChild("name").getTerminal());
- ParseNode bodyn=pn.getChild("body");
- BlockNode bn=parseBlock(bodyn);
- parseParameterList(td, pn);
- state.addTreeCode(td,bn);
- if (pn.getChild("flag_effects_list")!=null)
- td.addFlagEffects(parseFlags(pn.getChild("flag_effects_list")));
- return td;
- }
-
- public Vector parseFlags(ParseNode pn) {
- Vector vfe=new Vector();
- ParseNodeVector pnv=pn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode fn=pnv.elementAt(i);
- FlagEffects fe=parseFlagEffects(fn);
- vfe.add(fe);
- }
- return vfe;
- }
-
- public FlagEffects parseFlagEffects(ParseNode pn) {
- if (isNode(pn,"flag_effect")) {
- String flagname=pn.getChild("name").getTerminal();
- FlagEffects fe=new FlagEffects(flagname);
- if (pn.getChild("flag_list")!=null)
- parseFlagEffect(fe, pn.getChild("flag_list"));
- if (pn.getChild("tag_list")!=null)
- parseTagEffect(fe, pn.getChild("tag_list"));
- return fe;
- } else throw new Error();
- }
-
- public void parseTagEffect(FlagEffects fes, ParseNode pn) {
- ParseNodeVector pnv=pn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode pn2=pnv.elementAt(i);
- boolean status=true;
- if (isNode(pn2,"not")) {
- status=false;
- pn2=pn2.getChild("name");
- }
- String name=pn2.getTerminal();
- fes.addTagEffect(new TagEffect(name,status));
- }
- }
-
- public void parseFlagEffect(FlagEffects fes, ParseNode pn) {
- ParseNodeVector pnv=pn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode pn2=pnv.elementAt(i);
- boolean status=true;
- if (isNode(pn2,"not")) {
- status=false;
- pn2=pn2.getChild("name");
- }
- String name=pn2.getTerminal();
- fes.addEffect(new FlagEffect(name,status));
- }
- }
-
- public FlagExpressionNode parseFlagExpression(ParseNode pn) {
- if (isNode(pn,"or")) {
- ParseNodeVector pnv=pn.getChildren();
- ParseNode left=pnv.elementAt(0);
- ParseNode right=pnv.elementAt(1);
- return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_OR));
- } else if (isNode(pn,"and")) {
- ParseNodeVector pnv=pn.getChildren();
- ParseNode left=pnv.elementAt(0);
- ParseNode right=pnv.elementAt(1);
- return new FlagOpNode(parseFlagExpression(left), parseFlagExpression(right), new Operation(Operation.LOGIC_AND));
- } else if (isNode(pn, "not")) {
- ParseNodeVector pnv=pn.getChildren();
- ParseNode left=pnv.elementAt(0);
- return new FlagOpNode(parseFlagExpression(left), new Operation(Operation.LOGIC_NOT));
-
- } else if (isNode(pn,"name")) {
- return new FlagNode(pn.getTerminal());
- } else {
- throw new Error();
- }
- }
-
- public Vector parseChecks(ParseNode pn) {
- Vector ccs=new Vector();
- ParseNodeVector pnv=pn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode fn=pnv.elementAt(i);
- ConstraintCheck cc=parseConstraintCheck(fn);
- ccs.add(cc);
- }
- return ccs;
- }
-
- public ConstraintCheck parseConstraintCheck(ParseNode pn) {
- if (isNode(pn,"cons_check")) {
- String specname=pn.getChild("name").getChild("identifier").getTerminal();
- Vector[] args=parseConsArgumentList(pn);
- ConstraintCheck cc=new ConstraintCheck(specname);
- for(int i=0;i<args[0].size();i++) {
- cc.addVariable((String)args[0].get(i));
- cc.addArgument((ExpressionNode)args[1].get(i));
- }
- return cc;
- } else throw new Error();
- }
-
- public void parseParameterList(TaskDescriptor td, ParseNode pn) {
-
- boolean optional;
- ParseNode paramlist=pn.getChild("task_parameter_list");
- if (paramlist==null)
- return;
- ParseNodeVector pnv=paramlist.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode paramn=pnv.elementAt(i);
- if(paramn.getChild("optional")!=null){
- optional = true;
- paramn = paramn.getChild("optional").getFirstChild();
- System.out.println("OPTIONAL FOUND!!!!!!!");
- }
- else { optional = false;
- System.out.println("NOT OPTIONAL");
- }
-
- TypeDescriptor type=parseTypeDescriptor(paramn);
-
- String paramname=paramn.getChild("single").getTerminal();
- FlagExpressionNode fen=null;
- if (paramn.getChild("flag")!=null)
- fen=parseFlagExpression(paramn.getChild("flag").getFirstChild());
-
- ParseNode tagnode=paramn.getChild("tag");
-
- TagExpressionList tel=null;
- if (tagnode!=null) {
- tel=parseTagExpressionList(tagnode);
- }
-
- td.addParameter(type,paramname,fen, tel, optional);
- }
- }
-
- public TagExpressionList parseTagExpressionList(ParseNode pn) {
- //BUG FIX: change pn.getChildren() to pn.getChild("tag_expression_list").getChildren()
- //To test, feed in any input program that uses tags
- ParseNodeVector pnv=pn.getChild("tag_expression_list").getChildren();
- TagExpressionList tel=new TagExpressionList();
- for(int i=0;i<pnv.size();i++) {
- ParseNode tn=pnv.elementAt(i);
- String type=tn.getChild("type").getTerminal();
- String name=tn.getChild("single").getTerminal();
- tel.addTag(type, name);
- }
- return tel;
- }
-
- public ClassDescriptor parseTypeDecl(ParseNode pn) {
- ClassDescriptor cn=new ClassDescriptor(pn.getChild("name").getTerminal());
- if (!isEmpty(pn.getChild("super").getTerminal())) {
- /* parse superclass name */
- ParseNode snn=pn.getChild("super").getChild("type").getChild("class").getChild("name");
- NameDescriptor nd=parseName(snn);
- cn.setSuper(nd.toString());
- } else {
- if (!(cn.getSymbol().equals(TypeUtil.ObjectClass)||
- cn.getSymbol().equals(TypeUtil.TagClass)))
- cn.setSuper(TypeUtil.ObjectClass);
- }
- cn.setModifiers(parseModifiersList(pn.getChild("modifiers")));
- parseClassBody(cn, pn.getChild("classbody"));
- return cn;
- }
-
- private void parseClassBody(ClassDescriptor cn, ParseNode pn) {
- ParseNode decls=pn.getChild("class_body_declaration_list");
- if (decls!=null) {
- ParseNodeVector pnv=decls.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode decl=pnv.elementAt(i);
- if (isNode(decl,"member")) {
- parseClassMember(cn,decl);
- } else if (isNode(decl,"constructor")) {
- parseConstructorDecl(cn,decl.getChild("constructor_declaration"));
- } else if (isNode(decl,"block")) {
- } else throw new Error();
- }
- }
- }
-
- private void parseClassMember(ClassDescriptor cn, ParseNode pn) {
- ParseNode fieldnode=pn.getChild("field");
-
- if (fieldnode!=null) {
- parseFieldDecl(cn,fieldnode.getChild("field_declaration"));
- return;
- }
- ParseNode methodnode=pn.getChild("method");
- if (methodnode!=null) {
- parseMethodDecl(cn,methodnode.getChild("method_declaration"));
- return;
- }
- ParseNode flagnode=pn.getChild("flag");
- if (flagnode!=null) {
- parseFlagDecl(cn, flagnode.getChild("flag_declaration"));
- return;
- }
- throw new Error();
- }
-
- private TypeDescriptor parseTypeDescriptor(ParseNode pn) {
- ParseNode tn=pn.getChild("type");
-
- String type_st=tn.getTerminal();
- if(type_st.equals("byte")) {
- return state.getTypeDescriptor(TypeDescriptor.BYTE);
- } else if(type_st.equals("short")) {
- return state.getTypeDescriptor(TypeDescriptor.SHORT);
- } else if(type_st.equals("boolean")) {
- return state.getTypeDescriptor(TypeDescriptor.BOOLEAN);
- } else if(type_st.equals("int")) {
- return state.getTypeDescriptor(TypeDescriptor.INT);
- } else if(type_st.equals("long")) {
- return state.getTypeDescriptor(TypeDescriptor.LONG);
- } else if(type_st.equals("char")) {
- return state.getTypeDescriptor(TypeDescriptor.CHAR);
- } else if(type_st.equals("float")) {
- return state.getTypeDescriptor(TypeDescriptor.FLOAT);
- } else if(type_st.equals("double")) {
- return state.getTypeDescriptor(TypeDescriptor.DOUBLE);
- } else if(type_st.equals("class")) {
- ParseNode nn=tn.getChild("class");
- return state.getTypeDescriptor(parseName(nn.getChild("name")));
- } else if(type_st.equals("array")) {
- ParseNode nn=tn.getChild("array");
- TypeDescriptor td=parseTypeDescriptor(nn.getChild("basetype"));
- Integer numdims=(Integer)nn.getChild("dims").getLiteral();
- for(int i=0;i<numdims.intValue();i++)
- td=td.makeArray(state);
- return td;
- } else {
- throw new Error();
- }
- }
-
- private NameDescriptor parseName(ParseNode nn) {
- ParseNode base=nn.getChild("base");
- ParseNode id=nn.getChild("identifier");
- if (base==null)
- return new NameDescriptor(id.getTerminal());
- return new NameDescriptor(parseName(base.getChild("name")),id.getTerminal());
-
- }
-
- private void parseFlagDecl(ClassDescriptor cn,ParseNode pn) {
- String name=pn.getChild("name").getTerminal();
- FlagDescriptor flag=new FlagDescriptor(name);
- if (pn.getChild("external")!=null)
- flag.makeExternal();
- cn.addFlag(flag);
- }
-
- private void parseFieldDecl(ClassDescriptor cn,ParseNode pn) {
- ParseNode mn=pn.getChild("modifier");
- Modifiers m=parseModifiersList(mn);
-
- ParseNode tn=pn.getChild("type");
- TypeDescriptor t=parseTypeDescriptor(tn);
- ParseNode vn=pn.getChild("variables").getChild("variable_declarators_list");
- ParseNodeVector pnv=vn.getChildren();
- boolean isglobal=pn.getChild("global")!=null;
-
- for(int i=0;i<pnv.size();i++) {
- ParseNode vardecl=pnv.elementAt(i);
- ParseNode tmp=vardecl;
- TypeDescriptor arrayt=t;
- while (tmp.getChild("single")==null) {
- arrayt=arrayt.makeArray(state);
- tmp=tmp.getChild("array");
- }
- String identifier=tmp.getChild("single").getTerminal();
- ParseNode epn=vardecl.getChild("initializer");
-
- ExpressionNode en=null;
- if (epn!=null)
- en=parseExpression(epn.getFirstChild());
-
- cn.addField(new FieldDescriptor(m, arrayt, identifier, en, isglobal));
- }
- }
-
- private ExpressionNode parseExpression(ParseNode pn) {
- if (isNode(pn,"assignment"))
- return parseAssignmentExpression(pn);
- else if (isNode(pn,"logical_or")||isNode(pn,"logical_and")||
- isNode(pn,"bitwise_or")||isNode(pn,"bitwise_xor")||
- isNode(pn,"bitwise_and")||isNode(pn,"equal")||
- isNode(pn,"not_equal")||isNode(pn,"comp_lt")||
- isNode(pn,"comp_lte")||isNode(pn,"comp_gt")||
- isNode(pn,"comp_gte")||isNode(pn,"leftshift")||
- isNode(pn,"rightshift")||isNode(pn,"sub")||
- isNode(pn,"urightshift")||isNode(pn,"sub")||
- isNode(pn,"add")||isNode(pn,"mult")||
- isNode(pn,"div")||isNode(pn,"mod")) {
- ParseNodeVector pnv=pn.getChildren();
- ParseNode left=pnv.elementAt(0);
- ParseNode right=pnv.elementAt(1);
- Operation op=new Operation(pn.getLabel());
- return new OpNode(parseExpression(left),parseExpression(right),op);
- } else if (isNode(pn,"unaryplus")||
- isNode(pn,"unaryminus")||
- isNode(pn,"not")||
- isNode(pn,"comp")) {
- ParseNode left=pn.getFirstChild();
- Operation op=new Operation(pn.getLabel());
- return new OpNode(parseExpression(left),op);
- } else if (isNode(pn,"postinc")||
- isNode(pn,"postdec")) {
- ParseNode left=pn.getFirstChild();
- AssignOperation op=new AssignOperation(pn.getLabel());
- return new AssignmentNode(parseExpression(left),null,op);
-
- } else if (isNode(pn,"preinc")||
- isNode(pn,"predec")) {
- ParseNode left=pn.getFirstChild();
- AssignOperation op=isNode(pn,"preinc")?new AssignOperation(AssignOperation.PLUSEQ):new AssignOperation(AssignOperation.MINUSEQ);
- return new AssignmentNode(parseExpression(left),
- new LiteralNode("integer",new Integer(1)),op);
- } else if (isNode(pn,"literal")) {
- String literaltype=pn.getTerminal();
- ParseNode literalnode=pn.getChild(literaltype);
- Object literal_obj=literalnode.getLiteral();
- return new LiteralNode(literaltype, literal_obj);
- } else if (isNode(pn,"createobject")) {
- TypeDescriptor td=parseTypeDescriptor(pn);
- Vector args=parseArgumentList(pn);
- boolean isglobal=pn.getChild("global")!=null;
- CreateObjectNode con=new CreateObjectNode(td, isglobal);
- for(int i=0;i<args.size();i++) {
- con.addArgument((ExpressionNode)args.get(i));
- }
- /* Could have flag set or tag added here */
- if (pn.getChild("flag_list")!=null||pn.getChild("tag_list")!=null) {
- FlagEffects fe=new FlagEffects(null);
- if (pn.getChild("flag_list")!=null)
- parseFlagEffect(fe, pn.getChild("flag_list"));
-
- if (pn.getChild("tag_list")!=null)
- parseTagEffect(fe, pn.getChild("tag_list"));
- con.addFlagEffects(fe);
- }
-
- return con;
- } else if (isNode(pn,"createarray")) {
- //System.out.println(pn.PPrint(3,true));
- boolean isglobal=pn.getChild("global")!=null;
- TypeDescriptor td=parseTypeDescriptor(pn);
- Vector args=parseDimExprs(pn);
- int num=0;
- if (pn.getChild("dims_opt").getLiteral()!=null)
- num=((Integer)pn.getChild("dims_opt").getLiteral()).intValue();
- for(int i=0;i<(args.size()+num);i++)
- td=td.makeArray(state);
- CreateObjectNode con=new CreateObjectNode(td, isglobal);
- for(int i=0;i<args.size();i++) {
- con.addArgument((ExpressionNode)args.get(i));
- }
- return con;
- } else if (isNode(pn,"name")) {
- NameDescriptor nd=parseName(pn);
- return new NameNode(nd);
- } else if (isNode(pn,"this")) {
- NameDescriptor nd=new NameDescriptor("this");
- return new NameNode(nd);
- } else if (isNode(pn,"isavailable")) {
- NameDescriptor nd=new NameDescriptor(pn.getTerminal());
- return new OpNode(new NameNode(nd),null,new Operation(Operation.ISAVAILABLE));
- } else if (isNode(pn,"methodinvoke1")) {
- NameDescriptor nd=parseName(pn.getChild("name"));
- Vector args=parseArgumentList(pn);
- MethodInvokeNode min=new MethodInvokeNode(nd);
- for(int i=0;i<args.size();i++) {
- min.addArgument((ExpressionNode)args.get(i));
- }
- return min;
- } else if (isNode(pn,"methodinvoke2")) {
- String methodid=pn.getChild("id").getTerminal();
- ExpressionNode exp=parseExpression(pn.getChild("base").getFirstChild());
- Vector args=parseArgumentList(pn);
- MethodInvokeNode min=new MethodInvokeNode(methodid,exp);
- for(int i=0;i<args.size();i++) {
- min.addArgument((ExpressionNode)args.get(i));
- }
- return min;
- } else if (isNode(pn,"fieldaccess")) {
- ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild()); String fieldname=pn.getChild("field").getTerminal();
- return new FieldAccessNode(en,fieldname);
- } else if (isNode(pn,"arrayaccess")) {
- ExpressionNode en=parseExpression(pn.getChild("base").getFirstChild());
- ExpressionNode index=parseExpression(pn.getChild("index").getFirstChild());
- return new ArrayAccessNode(en,index);
- } else if (isNode(pn,"cast1")) {
- return new CastNode(parseTypeDescriptor(pn.getChild("type")),parseExpression(pn.getChild("exp").getFirstChild()));
- } else if (isNode(pn,"cast2")) {
- return new CastNode(parseExpression(pn.getChild("type").getFirstChild()),parseExpression(pn.getChild("exp").getFirstChild()));
- } else {
- System.out.println("---------------------");
- System.out.println(pn.PPrint(3,true));
- throw new Error();
- }
- }
-
- private Vector parseDimExprs(ParseNode pn) {
- Vector arglist=new Vector();
- ParseNode an=pn.getChild("dim_exprs");
- if (an==null) /* No argument list */
- return arglist;
- ParseNodeVector anv=an.getChildren();
- for(int i=0;i<anv.size();i++) {
- arglist.add(parseExpression(anv.elementAt(i)));
- }
- return arglist;
- }
-
- private Vector parseArgumentList(ParseNode pn) {
- Vector arglist=new Vector();
- ParseNode an=pn.getChild("argument_list");
- if (an==null) /* No argument list */
- return arglist;
- ParseNodeVector anv=an.getChildren();
- for(int i=0;i<anv.size();i++) {
- arglist.add(parseExpression(anv.elementAt(i)));
- }
- return arglist;
- }
-
- private Vector[] parseConsArgumentList(ParseNode pn) {
- Vector arglist=new Vector();
- Vector varlist=new Vector();
- ParseNode an=pn.getChild("cons_argument_list");
- if (an==null) /* No argument list */
- return new Vector[] {varlist, arglist};
- ParseNodeVector anv=an.getChildren();
- for(int i=0;i<anv.size();i++) {
- ParseNode cpn=anv.elementAt(i);
- ParseNode var=cpn.getChild("var");
- ParseNode exp=cpn.getChild("exp").getFirstChild();
- varlist.add(var.getTerminal());
- arglist.add(parseExpression(exp));
- }
- return new Vector[] {varlist, arglist};
- }
-
- private ExpressionNode parseAssignmentExpression(ParseNode pn) {
- AssignOperation ao=new AssignOperation(pn.getChild("op").getTerminal());
- ParseNodeVector pnv=pn.getChild("args").getChildren();
-
- AssignmentNode an=new AssignmentNode(parseExpression(pnv.elementAt(0)),parseExpression(pnv.elementAt(1)),ao);
- return an;
- }
-
-
- private void parseMethodDecl(ClassDescriptor cn, ParseNode pn) {
- ParseNode headern=pn.getChild("method_header");
- ParseNode bodyn=pn.getChild("body");
- MethodDescriptor md=parseMethodHeader(headern);
- BlockNode bn=parseBlock(bodyn);
- cn.addMethod(md);
- state.addTreeCode(md,bn);
- }
-
- private void parseConstructorDecl(ClassDescriptor cn, ParseNode pn) {
- ParseNode mn=pn.getChild("modifiers");
- Modifiers m=parseModifiersList(mn);
- ParseNode cdecl=pn.getChild("constructor_declarator");
- boolean isglobal=cdecl.getChild("global")!=null;
- String name=cdecl.getChild("name").getChild("identifier").getTerminal();
- MethodDescriptor md=new MethodDescriptor(m, name, isglobal);
- ParseNode paramnode=cdecl.getChild("parameters");
- parseParameterList(md,paramnode);
- ParseNode bodyn0=pn.getChild("body");
- ParseNode bodyn=bodyn0.getChild("constructor_body");
- cn.addMethod(md);
- BlockNode bn=null;
- if (bodyn!=null&&bodyn.getChild("block_statement_list")!=null)
- bn=parseBlock(bodyn);
- else
- bn=new BlockNode();
- if (bodyn!=null&&bodyn.getChild("superinvoke")!=null) {
- ParseNode sin=bodyn.getChild("superinvoke");
- NameDescriptor nd=new NameDescriptor("super");
- Vector args=parseArgumentList(sin);
- MethodInvokeNode min=new MethodInvokeNode(nd);
- for(int i=0;i<args.size();i++) {
- min.addArgument((ExpressionNode)args.get(i));
- }
- BlockExpressionNode ben=new BlockExpressionNode(min);
- bn.addFirstBlockStatement(ben);
- }
- state.addTreeCode(md,bn);
- }
-
- public BlockNode parseBlock(ParseNode pn) {
- if (pn==null||isEmpty(pn.getTerminal()))
- return new BlockNode();
- ParseNode bsn=pn.getChild("block_statement_list");
- return parseBlockHelper(bsn);
- }
-
- private BlockNode parseBlockHelper(ParseNode pn) {
- ParseNodeVector pnv=pn.getChildren();
- BlockNode bn=new BlockNode();
- for(int i=0;i<pnv.size();i++) {
- Vector bsv=parseBlockStatement(pnv.elementAt(i));
- for(int j=0;j<bsv.size();j++) {
- bn.addBlockStatement((BlockStatementNode)bsv.get(j));
- }
- }
- return bn;
- }
-
- public BlockNode parseSingleBlock(ParseNode pn) {
- BlockNode bn=new BlockNode();
- Vector bsv=parseBlockStatement(pn);
- for(int j=0;j<bsv.size();j++) {
- bn.addBlockStatement((BlockStatementNode)bsv.get(j));
- }
- bn.setStyle(BlockNode.NOBRACES);
- return bn;
- }
-
- public Vector parseBlockStatement(ParseNode pn) {
- Vector blockstatements=new Vector();
- if (isNode(pn,"tag_declaration")) {
- String name=pn.getChild("single").getTerminal();
- String type=pn.getChild("type").getTerminal();
-
- blockstatements.add(new TagDeclarationNode(name, type));
- } else if (isNode(pn,"local_variable_declaration")) {
- TypeDescriptor t=parseTypeDescriptor(pn);
- ParseNode vn=pn.getChild("variable_declarators_list");
- ParseNodeVector pnv=vn.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode vardecl=pnv.elementAt(i);
-
-
- ParseNode tmp=vardecl;
- TypeDescriptor arrayt=t;
- while (tmp.getChild("single")==null) {
- arrayt=arrayt.makeArray(state);
- tmp=tmp.getChild("array");
- }
- String identifier=tmp.getChild("single").getTerminal();
-
- ParseNode epn=vardecl.getChild("initializer");
-
-
- ExpressionNode en=null;
- if (epn!=null)
- en=parseExpression(epn.getFirstChild());
-
- blockstatements.add(new DeclarationNode(new VarDescriptor(arrayt, identifier),en));
- }
- } else if (isNode(pn,"nop")) {
- /* Do Nothing */
- } else if (isNode(pn,"expression")) {
- blockstatements.add(new BlockExpressionNode(parseExpression(pn.getFirstChild())));
- } else if (isNode(pn,"ifstatement")) {
- blockstatements.add(new IfStatementNode(parseExpression(pn.getChild("condition").getFirstChild()),
- parseSingleBlock(pn.getChild("statement").getFirstChild()),
- pn.getChild("else_statement")!=null?parseSingleBlock(pn.getChild("else_statement").getFirstChild()):null));
- } else if (isNode(pn,"taskexit")) {
- Vector vfe=null;
- if (pn.getChild("flag_effects_list")!=null)
- vfe=parseFlags(pn.getChild("flag_effects_list"));
- Vector ccs=null;
- if (pn.getChild("cons_checks")!=null)
- ccs=parseChecks(pn.getChild("cons_checks"));
-
- blockstatements.add(new TaskExitNode(vfe, ccs));
- } else if (isNode(pn,"atomic")) {
- BlockNode bn=parseBlockHelper(pn);
- blockstatements.add(new AtomicNode(bn));
- } else if (isNode(pn,"return")) {
- if (isEmpty(pn.getTerminal()))
- blockstatements.add(new ReturnNode());
- else {
- ExpressionNode en=parseExpression(pn.getFirstChild());
- blockstatements.add(new ReturnNode(en));
- }
- } else if (isNode(pn,"block_statement_list")) {
- BlockNode bn=parseBlockHelper(pn);
- blockstatements.add(new SubBlockNode(bn));
- } else if (isNode(pn,"empty")) {
- /* nop */
- } else if (isNode(pn,"statement_expression_list")) {
- ParseNodeVector pnv=pn.getChildren();
- BlockNode bn=new BlockNode();
- for(int i=0;i<pnv.size();i++) {
- ExpressionNode en=parseExpression(pnv.elementAt(i));
- blockstatements.add(new BlockExpressionNode(en));
- }
- bn.setStyle(BlockNode.EXPRLIST);
- } else if (isNode(pn,"forstatement")) {
- BlockNode init=parseSingleBlock(pn.getChild("initializer").getFirstChild());
- BlockNode update=parseSingleBlock(pn.getChild("update").getFirstChild());
- ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
- BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
- blockstatements.add(new LoopNode(init,condition,update,body));
- } else if (isNode(pn,"whilestatement")) {
- ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
- BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
- blockstatements.add(new LoopNode(condition,body,LoopNode.WHILELOOP));
- } else if (isNode(pn,"dowhilestatement")) {
- ExpressionNode condition=parseExpression(pn.getChild("condition").getFirstChild());
- BlockNode body=parseSingleBlock(pn.getChild("statement").getFirstChild());
- blockstatements.add(new LoopNode(condition,body,LoopNode.DOWHILELOOP));
- } else {
- System.out.println("---------------");
- System.out.println(pn.PPrint(3,true));
- throw new Error();
- }
- return blockstatements;
- }
-
- public MethodDescriptor parseMethodHeader(ParseNode pn) {
- ParseNode mn=pn.getChild("modifiers");
- Modifiers m=parseModifiersList(mn);
-
- ParseNode tn=pn.getChild("returntype");
- TypeDescriptor returntype;
- if (tn!=null)
- returntype=parseTypeDescriptor(tn);
- else
- returntype=new TypeDescriptor(TypeDescriptor.VOID);
-
- ParseNode pmd=pn.getChild("method_declarator");
- String name=pmd.getChild("name").getTerminal();
- MethodDescriptor md=new MethodDescriptor(m, returntype, name);
-
- ParseNode paramnode=pmd.getChild("parameters");
- parseParameterList(md,paramnode);
- return md;
- }
-
- public void parseParameterList(MethodDescriptor md, ParseNode pn) {
- ParseNode paramlist=pn.getChild("formal_parameter_list");
- if (paramlist==null)
- return;
- ParseNodeVector pnv=paramlist.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode paramn=pnv.elementAt(i);
-
- if (isNode(paramn, "tag_parameter")) {
- String paramname=paramn.getChild("single").getTerminal();
- TypeDescriptor type=new TypeDescriptor(TypeDescriptor.TAG);
- md.addTagParameter(type, paramname);
- } else {
- TypeDescriptor type=parseTypeDescriptor(paramn);
-
- ParseNode tmp=paramn;
- while (tmp.getChild("single")==null) {
- type=type.makeArray(state);
- tmp=tmp.getChild("array");
- }
- String paramname=tmp.getChild("single").getTerminal();
-
- md.addParameter(type, paramname);
- }
- }
- }
-
- public Modifiers parseModifiersList(ParseNode pn) {
- Modifiers m=new Modifiers();
- ParseNode modlist=pn.getChild("modifier_list");
- if (modlist!=null) {
- ParseNodeVector pnv=modlist.getChildren();
- for(int i=0;i<pnv.size();i++) {
- ParseNode modn=pnv.elementAt(i);
- if (isNode(modn,"public"))
- m.addModifier(Modifiers.PUBLIC);
- else if (isNode(modn,"protected"))
- m.addModifier(Modifiers.PROTECTED);
- else if (isNode(modn,"private"))
- m.addModifier(Modifiers.PRIVATE);
- else if (isNode(modn,"static"))
- m.addModifier(Modifiers.STATIC);
- else if (isNode(modn,"final"))
- m.addModifier(Modifiers.FINAL);
- else if (isNode(modn,"native"))
- m.addModifier(Modifiers.NATIVE);
- else if (isNode(modn,"synchronized"))
- m.addModifier(Modifiers.SYNCHRONIZED);
- else if (isNode(modn,"atomic"))
- m.addModifier(Modifiers.ATOMIC);
- else throw new Error("Unrecognized Modifier");
- }
- }
- return m;
- }
-
- private boolean isNode(ParseNode pn, String label) {
- if (pn.getLabel().equals(label))
- return true;
- else return false;
- }
-
- private static boolean isEmpty(ParseNode pn) {
- if (pn.getLabel().equals("empty"))
- return true;
- else
- return false;
- }
-
- private static boolean isEmpty(String s) {
- if (s.equals("empty"))
- return true;
- else
- return false;
- }
-
- /** Throw an exception if something is unexpected */
- private void check(ParseNode pn, String label) {
- if (pn == null) {
- throw new Error(pn+ "IE: Expected '" + label + "', got null");
- }
- if (! pn.getLabel().equals(label)) {
- throw new Error(pn+ "IE: Expected '" + label + "', got '"+pn.getLabel()+"'");
- }
- }
-}
projects / IRC.git / blobdiff