diff options
Diffstat (limited to 'src/piglet/PigletParser.java')
| -rw-r--r-- | src/piglet/PigletParser.java | 676 |
1 files changed, 676 insertions, 0 deletions
diff --git a/src/piglet/PigletParser.java b/src/piglet/PigletParser.java new file mode 100644 index 0000000..fe6b4ec --- /dev/null +++ b/src/piglet/PigletParser.java @@ -0,0 +1,676 @@ +package piglet;
+/* Generated By:JavaCC: Do not edit this line. PigletParser.java */
+import piglet.syntaxtree.BinOp;
+import piglet.syntaxtree.CJumpStmt;
+import piglet.syntaxtree.Call;
+import piglet.syntaxtree.ErrorStmt;
+import piglet.syntaxtree.Exp;
+import piglet.syntaxtree.Goal;
+import piglet.syntaxtree.HAllocate;
+import piglet.syntaxtree.HLoadStmt;
+import piglet.syntaxtree.HStoreStmt;
+import piglet.syntaxtree.IntegerLiteral;
+import piglet.syntaxtree.JumpStmt;
+import piglet.syntaxtree.Label;
+import piglet.syntaxtree.MoveStmt;
+import piglet.syntaxtree.NoOpStmt;
+import piglet.syntaxtree.NodeChoice;
+import piglet.syntaxtree.NodeListOptional;
+import piglet.syntaxtree.NodeOptional;
+import piglet.syntaxtree.NodeSequence;
+import piglet.syntaxtree.NodeToken;
+import piglet.syntaxtree.Operator;
+import piglet.syntaxtree.PrintStmt;
+import piglet.syntaxtree.Procedure;
+import piglet.syntaxtree.Stmt;
+import piglet.syntaxtree.StmtExp;
+import piglet.syntaxtree.StmtList;
+import piglet.syntaxtree.Temp;
+
+
+public class PigletParser implements PigletParserConstants {
+
+ static final public Goal Goal() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ StmtList n2;
+ NodeToken n3;
+ Token n4;
+ NodeListOptional n5 = new NodeListOptional();
+ Procedure n6;
+ NodeToken n7;
+ Token n8;
+ n1 = jj_consume_token(MAIN);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = StmtList();
+ n4 = jj_consume_token(END);
+ n3 = JTBToolkit.makeNodeToken(n4);
+ label_1:
+ while (true) {
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case IDENTIFIER:
+ ;
+ break;
+ default:
+ jj_la1[0] = jj_gen;
+ break label_1;
+ }
+ n6 = Procedure();
+ n5.addNode(n6);
+ }
+ n5.nodes.trimToSize();
+ n8 = jj_consume_token(0);
+ n8.beginColumn++; n8.endColumn++;
+ n7 = JTBToolkit.makeNodeToken(n8);
+ {if (true) return new Goal(n0,n2,n3,n5,n7);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public StmtList StmtList() throws ParseException {
+ NodeListOptional n0 = new NodeListOptional();
+ NodeSequence n1;
+ NodeOptional n2;
+ Label n3;
+ Stmt n4;
+ label_2:
+ while (true) {
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case NOOP:
+ case MOVE:
+ case ERROR:
+ case PRINT:
+ case JUMP:
+ case CJUMP:
+ case HSTORE:
+ case HLOAD:
+ case IDENTIFIER:
+ ;
+ break;
+ default:
+ jj_la1[1] = jj_gen;
+ break label_2;
+ }
+ n2 = new NodeOptional();
+ n1 = new NodeSequence(2);
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case IDENTIFIER:
+ n3 = Label();
+ n2.addNode(n3);
+ break;
+ default:
+ jj_la1[2] = jj_gen;
+ ;
+ }
+ n1.addNode(n2);
+ n4 = Stmt();
+ n1.addNode(n4);
+ n0.addNode(n1);
+ }
+ n0.nodes.trimToSize();
+ {if (true) return new StmtList(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Procedure Procedure() throws ParseException {
+ Label n0;
+ NodeToken n1;
+ Token n2;
+ IntegerLiteral n3;
+ NodeToken n4;
+ Token n5;
+ StmtExp n6;
+ n0 = Label();
+ n2 = jj_consume_token(LSQPAREN);
+ n1 = JTBToolkit.makeNodeToken(n2);
+ n3 = IntegerLiteral();
+ n5 = jj_consume_token(RSQPAREN);
+ n4 = JTBToolkit.makeNodeToken(n5);
+ n6 = StmtExp();
+ {if (true) return new Procedure(n0,n1,n3,n4,n6);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Stmt Stmt() throws ParseException {
+ NodeChoice n0;
+ NoOpStmt n1;
+ ErrorStmt n2;
+ CJumpStmt n3;
+ JumpStmt n4;
+ HStoreStmt n5;
+ HLoadStmt n6;
+ MoveStmt n7;
+ PrintStmt n8;
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case NOOP:
+ n1 = NoOpStmt();
+ n0 = new NodeChoice(n1, 0);
+ break;
+ case ERROR:
+ n2 = ErrorStmt();
+ n0 = new NodeChoice(n2, 1);
+ break;
+ case CJUMP:
+ n3 = CJumpStmt();
+ n0 = new NodeChoice(n3, 2);
+ break;
+ case JUMP:
+ n4 = JumpStmt();
+ n0 = new NodeChoice(n4, 3);
+ break;
+ case HSTORE:
+ n5 = HStoreStmt();
+ n0 = new NodeChoice(n5, 4);
+ break;
+ case HLOAD:
+ n6 = HLoadStmt();
+ n0 = new NodeChoice(n6, 5);
+ break;
+ case MOVE:
+ n7 = MoveStmt();
+ n0 = new NodeChoice(n7, 6);
+ break;
+ case PRINT:
+ n8 = PrintStmt();
+ n0 = new NodeChoice(n8, 7);
+ break;
+ default:
+ jj_la1[3] = jj_gen;
+ jj_consume_token(-1);
+ throw new ParseException();
+ }
+ {if (true) return new Stmt(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public NoOpStmt NoOpStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ n1 = jj_consume_token(NOOP);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ {if (true) return new NoOpStmt(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public ErrorStmt ErrorStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ n1 = jj_consume_token(ERROR);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ {if (true) return new ErrorStmt(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public CJumpStmt CJumpStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Exp n2;
+ Label n3;
+ n1 = jj_consume_token(CJUMP);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Exp();
+ n3 = Label();
+ {if (true) return new CJumpStmt(n0,n2,n3);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public JumpStmt JumpStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Label n2;
+ n1 = jj_consume_token(JUMP);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Label();
+ {if (true) return new JumpStmt(n0,n2);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public HStoreStmt HStoreStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Exp n2;
+ IntegerLiteral n3;
+ Exp n4;
+ n1 = jj_consume_token(HSTORE);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Exp();
+ n3 = IntegerLiteral();
+ n4 = Exp();
+ {if (true) return new HStoreStmt(n0,n2,n3,n4);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public HLoadStmt HLoadStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Temp n2;
+ Exp n3;
+ IntegerLiteral n4;
+ n1 = jj_consume_token(HLOAD);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Temp();
+ n3 = Exp();
+ n4 = IntegerLiteral();
+ {if (true) return new HLoadStmt(n0,n2,n3,n4);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public MoveStmt MoveStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Temp n2;
+ Exp n3;
+ n1 = jj_consume_token(MOVE);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Temp();
+ n3 = Exp();
+ {if (true) return new MoveStmt(n0,n2,n3);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public PrintStmt PrintStmt() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Exp n2;
+ n1 = jj_consume_token(PRINT);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Exp();
+ {if (true) return new PrintStmt(n0,n2);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Exp Exp() throws ParseException {
+ NodeChoice n0;
+ StmtExp n1;
+ Call n2;
+ HAllocate n3;
+ BinOp n4;
+ Temp n5;
+ IntegerLiteral n6;
+ Label n7;
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case BEGIN:
+ n1 = StmtExp();
+ n0 = new NodeChoice(n1, 0);
+ break;
+ case CALL:
+ n2 = Call();
+ n0 = new NodeChoice(n2, 1);
+ break;
+ case HALLOCATE:
+ n3 = HAllocate();
+ n0 = new NodeChoice(n3, 2);
+ break;
+ case LT:
+ case PLUS:
+ case MINUS:
+ case TIMES:
+ n4 = BinOp();
+ n0 = new NodeChoice(n4, 3);
+ break;
+ case TEMP:
+ n5 = Temp();
+ n0 = new NodeChoice(n5, 4);
+ break;
+ case INTEGER_LITERAL:
+ n6 = IntegerLiteral();
+ n0 = new NodeChoice(n6, 5);
+ break;
+ case IDENTIFIER:
+ n7 = Label();
+ n0 = new NodeChoice(n7, 6);
+ break;
+ default:
+ jj_la1[4] = jj_gen;
+ jj_consume_token(-1);
+ throw new ParseException();
+ }
+ {if (true) return new Exp(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public StmtExp StmtExp() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ StmtList n2;
+ NodeToken n3;
+ Token n4;
+ Exp n5;
+ NodeToken n6;
+ Token n7;
+ n1 = jj_consume_token(BEGIN);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = StmtList();
+ n4 = jj_consume_token(RETURN);
+ n3 = JTBToolkit.makeNodeToken(n4);
+ n5 = Exp();
+ n7 = jj_consume_token(END);
+ n6 = JTBToolkit.makeNodeToken(n7);
+ {if (true) return new StmtExp(n0,n2,n3,n5,n6);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Call Call() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Exp n2;
+ NodeToken n3;
+ Token n4;
+ NodeListOptional n5 = new NodeListOptional();
+ Exp n6;
+ NodeToken n7;
+ Token n8;
+ n1 = jj_consume_token(CALL);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Exp();
+ n4 = jj_consume_token(LPAREN);
+ n3 = JTBToolkit.makeNodeToken(n4);
+ label_3:
+ while (true) {
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case LT:
+ case PLUS:
+ case MINUS:
+ case TIMES:
+ case HALLOCATE:
+ case CALL:
+ case BEGIN:
+ case TEMP:
+ case INTEGER_LITERAL:
+ case IDENTIFIER:
+ ;
+ break;
+ default:
+ jj_la1[5] = jj_gen;
+ break label_3;
+ }
+ n6 = Exp();
+ n5.addNode(n6);
+ }
+ n5.nodes.trimToSize();
+ n8 = jj_consume_token(RPAREN);
+ n7 = JTBToolkit.makeNodeToken(n8);
+ {if (true) return new Call(n0,n2,n3,n5,n7);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public HAllocate HAllocate() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ Exp n2;
+ n1 = jj_consume_token(HALLOCATE);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = Exp();
+ {if (true) return new HAllocate(n0,n2);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public BinOp BinOp() throws ParseException {
+ Operator n0;
+ Exp n1;
+ Exp n2;
+ n0 = Operator();
+ n1 = Exp();
+ n2 = Exp();
+ {if (true) return new BinOp(n0,n1,n2);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Operator Operator() throws ParseException {
+ NodeChoice n0;
+ NodeToken n1;
+ Token n2;
+ NodeToken n3;
+ Token n4;
+ NodeToken n5;
+ Token n6;
+ NodeToken n7;
+ Token n8;
+ switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
+ case LT:
+ n2 = jj_consume_token(LT);
+ n1 = JTBToolkit.makeNodeToken(n2);
+ n0 = new NodeChoice(n1, 0);
+ break;
+ case PLUS:
+ n4 = jj_consume_token(PLUS);
+ n3 = JTBToolkit.makeNodeToken(n4);
+ n0 = new NodeChoice(n3, 1);
+ break;
+ case MINUS:
+ n6 = jj_consume_token(MINUS);
+ n5 = JTBToolkit.makeNodeToken(n6);
+ n0 = new NodeChoice(n5, 2);
+ break;
+ case TIMES:
+ n8 = jj_consume_token(TIMES);
+ n7 = JTBToolkit.makeNodeToken(n8);
+ n0 = new NodeChoice(n7, 3);
+ break;
+ default:
+ jj_la1[6] = jj_gen;
+ jj_consume_token(-1);
+ throw new ParseException();
+ }
+ {if (true) return new Operator(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Temp Temp() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ IntegerLiteral n2;
+ n1 = jj_consume_token(TEMP);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ n2 = IntegerLiteral();
+ {if (true) return new Temp(n0,n2);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public IntegerLiteral IntegerLiteral() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ n1 = jj_consume_token(INTEGER_LITERAL);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ {if (true) return new IntegerLiteral(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static final public Label Label() throws ParseException {
+ NodeToken n0;
+ Token n1;
+ n1 = jj_consume_token(IDENTIFIER);
+ n0 = JTBToolkit.makeNodeToken(n1);
+ {if (true) return new Label(n0);}
+ throw new Error("Missing return statement in function");
+ }
+
+ static private boolean jj_initialized_once = false;
+ static public PigletParserTokenManager token_source;
+ static JavaCharStream jj_input_stream;
+ static public Token token, jj_nt;
+ static private int jj_ntk;
+ static private int jj_gen;
+ static final private int[] jj_la1 = new int[7];
+ static private int[] jj_la1_0;
+ static private int[] jj_la1_1;
+ static {
+ jj_la1_0();
+ jj_la1_1();
+ }
+ private static void jj_la1_0() {
+ jj_la1_0 = new int[] {0x0,0x0,0x0,0x0,0x48c10000,0x48c10000,0x8c10000,};
+ }
+ private static void jj_la1_1() {
+ jj_la1_1 = new int[] {0x8000,0x879b,0x8000,0x79b,0xd024,0xd024,0x0,};
+ }
+
+ public PigletParser(java.io.InputStream stream) {
+ this(stream, null);
+ }
+ public PigletParser(java.io.InputStream stream, String encoding) {
+ if (jj_initialized_once) {
+ System.out.println("ERROR: Second call to constructor of static parser. You must");
+ System.out.println(" either use ReInit() or set the JavaCC option STATIC to false");
+ System.out.println(" during parser generation.");
+ throw new Error();
+ }
+ jj_initialized_once = true;
+ try { jj_input_stream = new JavaCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
+ token_source = new PigletParserTokenManager(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 7; i++) jj_la1[i] = -1;
+ }
+
+ static public void ReInit(java.io.InputStream stream) {
+ ReInit(stream, null);
+ }
+ static public void ReInit(java.io.InputStream stream, String encoding) {
+ try { jj_input_stream.ReInit(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
+ token_source.ReInit(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 7; i++) jj_la1[i] = -1;
+ }
+
+ public PigletParser(java.io.Reader stream) {
+ if (jj_initialized_once) {
+ System.out.println("ERROR: Second call to constructor of static parser. You must");
+ System.out.println(" either use ReInit() or set the JavaCC option STATIC to false");
+ System.out.println(" during parser generation.");
+ throw new Error();
+ }
+ jj_initialized_once = true;
+ jj_input_stream = new JavaCharStream(stream, 1, 1);
+ token_source = new PigletParserTokenManager(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 7; i++) jj_la1[i] = -1;
+ }
+
+ static public void ReInit(java.io.Reader stream) {
+ jj_input_stream.ReInit(stream, 1, 1);
+ token_source.ReInit(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 7; i++) jj_la1[i] = -1;
+ }
+
+ public PigletParser(PigletParserTokenManager tm) {
+ if (jj_initialized_once) {
+ System.out.println("ERROR: Second call to constructor of static parser. You must");
+ System.out.println(" either use ReInit() or set the JavaCC option STATIC to false");
+ System.out.println(" during parser generation.");
+ throw new Error();
+ }
+ jj_initialized_once = true;
+ token_source = tm;
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 7; i++) jj_la1[i] = -1;
+ }
+
+ public void ReInit(PigletParserTokenManager tm) {
+ token_source = tm;
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 7; i++) jj_la1[i] = -1;
+ }
+
+ static final private Token jj_consume_token(int kind) throws ParseException {
+ Token oldToken;
+ if ((oldToken = token).next != null) token = token.next;
+ else token = token.next = token_source.getNextToken();
+ jj_ntk = -1;
+ if (token.kind == kind) {
+ jj_gen++;
+ return token;
+ }
+ token = oldToken;
+ jj_kind = kind;
+ throw generateParseException();
+ }
+
+ static final public Token getNextToken() {
+ if (token.next != null) token = token.next;
+ else token = token.next = token_source.getNextToken();
+ jj_ntk = -1;
+ jj_gen++;
+ return token;
+ }
+
+ static final public Token getToken(int index) {
+ Token t = token;
+ for (int i = 0; i < index; i++) {
+ if (t.next != null) t = t.next;
+ else t = t.next = token_source.getNextToken();
+ }
+ return t;
+ }
+
+ static final private int jj_ntk() {
+ if ((jj_nt=token.next) == null)
+ return (jj_ntk = (token.next=token_source.getNextToken()).kind);
+ else
+ return (jj_ntk = jj_nt.kind);
+ }
+
+ static private java.util.Vector jj_expentries = new java.util.Vector();
+ static private int[] jj_expentry;
+ static private int jj_kind = -1;
+
+ static public ParseException generateParseException() {
+ jj_expentries.removeAllElements();
+ boolean[] la1tokens = new boolean[50];
+ for (int i = 0; i < 50; i++) {
+ la1tokens[i] = false;
+ }
+ if (jj_kind >= 0) {
+ la1tokens[jj_kind] = true;
+ jj_kind = -1;
+ }
+ for (int i = 0; i < 7; i++) {
+ if (jj_la1[i] == jj_gen) {
+ for (int j = 0; j < 32; j++) {
+ if ((jj_la1_0[i] & (1<<j)) != 0) {
+ la1tokens[j] = true;
+ }
+ if ((jj_la1_1[i] & (1<<j)) != 0) {
+ la1tokens[32+j] = true;
+ }
+ }
+ }
+ }
+ for (int i = 0; i < 50; i++) {
+ if (la1tokens[i]) {
+ jj_expentry = new int[1];
+ jj_expentry[0] = i;
+ jj_expentries.addElement(jj_expentry);
+ }
+ }
+ int[][] exptokseq = new int[jj_expentries.size()][];
+ for (int i = 0; i < jj_expentries.size(); i++) {
+ exptokseq[i] = (int[])jj_expentries.elementAt(i);
+ }
+ return new ParseException(token, exptokseq, tokenImage);
+ }
+
+ static final public void enable_tracing() {
+ }
+
+ static final public void disable_tracing() {
+ }
+
+}
+
+class JTBToolkit {
+ static NodeToken makeNodeToken(Token t) {
+ return new NodeToken(t.image.intern(), t.kind, t.beginLine, t.beginColumn, t.endLine, t.endColumn);
+ }
+}
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