public String toString() { return identifier + ":" + declarator.getType(); }
@Override public String toString() { return identifier + ":" + declarator.getType(); }
public CtClass lookupClass(Declarator decl) throws CompileError { return lookupClass(decl.getType(), decl.getArrayDim(), decl.getClassName()); }
public void atVariable(Variable v) throws CompileError { Declarator d = v.getDeclarator(); exprType = d.getType(); arrayDim = d.getArrayDim(); className = d.getClassName(); }
@Override public void atVariable(Variable v) throws CompileError { Declarator d = v.getDeclarator(); exprType = d.getType(); arrayDim = d.getArrayDim(); className = d.getClassName(); }
private void atVariableAssign(Expr expr, int op, Variable var, Declarator d, ASTree right) throws CompileError { int varType = d.getType(); int varArray = d.getArrayDim(); String varClass = d.getClassName(); if (op != '=') atVariable(var); right.accept(this); exprType = varType; arrayDim = varArray; className = varClass; }
public CtClass lookupClass(Declarator decl) throws CompileError { return lookupClass(decl.getType(), decl.getArrayDim(), decl.getClassName()); }
private void atVariableAssign(Expr expr, int op, Variable var, Declarator d, ASTree right) throws CompileError { int varType = d.getType(); int varArray = d.getArrayDim(); String varClass = d.getClassName(); if (op != '=') atVariable(var); right.accept(this); exprType = varType; arrayDim = varArray; className = varClass; }
private void atPlusPlus(int token, ASTree oprand, Expr expr) throws CompileError { boolean isPost = oprand == null; // ++i or i++? if (isPost) oprand = expr.oprand2(); if (oprand instanceof Variable) { Declarator d = ((Variable)oprand).getDeclarator(); exprType = d.getType(); arrayDim = d.getArrayDim(); } else { if (oprand instanceof Expr) { Expr e = (Expr)oprand; if (e.getOperator() == ARRAY) { atArrayRead(e.oprand1(), e.oprand2()); // arrayDim should be 0. int t = exprType; if (t == INT || t == BYTE || t == CHAR || t == SHORT) exprType = INT; return; } } atFieldPlusPlus(oprand); } }
private Declarator parseDeclarator(SymbolTable tbl, Declarator d) throws CompileError { if (lex.get() != Identifier || d.getType() == VOID) throw new SyntaxError(lex); String name = lex.getString(); Symbol symbol = new Symbol(name); int dim = parseArrayDimension(); ASTree init = null; if (lex.lookAhead() == '=') { lex.get(); init = parseInitializer(tbl); } Declarator decl = d.make(symbol, dim, init); tbl.append(name, decl); return decl; }
public void atDeclarator(Declarator d) throws CompileError { d.setLocalVar(getMaxLocals()); d.setClassName(resolveClassName(d.getClassName())); int size; if (is2word(d.getType(), d.getArrayDim())) size = 2; else size = 1; incMaxLocals(size); /* NOTE: Array initializers has not been supported. */ ASTree init = d.getInitializer(); if (init != null) { doTypeCheck(init); atVariableAssign(null, '=', null, d, init, false); } }
public void atVariable(Variable v) throws CompileError { Declarator d = v.getDeclarator(); exprType = d.getType(); arrayDim = d.getArrayDim(); className = d.getClassName(); int var = getLocalVar(d); if (arrayDim > 0) bytecode.addAload(var); else switch (exprType) { case CLASS : bytecode.addAload(var); break; case LONG : bytecode.addLload(var); break; case FLOAT : bytecode.addFload(var); break; case DOUBLE : bytecode.addDload(var); break; default : // BOOLEAN, BYTE, CHAR, SHORT, INT bytecode.addIload(var); break; } }
private void atPlusPlus(int token, ASTree oprand, Expr expr) throws CompileError { boolean isPost = oprand == null; // ++i or i++? if (isPost) oprand = expr.oprand2(); if (oprand instanceof Variable) { Declarator d = ((Variable)oprand).getDeclarator(); exprType = d.getType(); arrayDim = d.getArrayDim(); } else { if (oprand instanceof Expr) { Expr e = (Expr)oprand; if (e.getOperator() == ARRAY) { atArrayRead(e.oprand1(), e.oprand2()); // arrayDim should be 0. int t = exprType; if (t == INT || t == BYTE || t == CHAR || t == SHORT) exprType = INT; return; } } atFieldPlusPlus(oprand); } }
private Declarator parseDeclarator(SymbolTable tbl, Declarator d) throws CompileError { if (lex.get() != Identifier || d.getType() == VOID) throw new SyntaxError(lex); String name = lex.getString(); Symbol symbol = new Symbol(name); int dim = parseArrayDimension(); ASTree init = null; if (lex.lookAhead() == '=') { lex.get(); init = parseInitializer(tbl); } Declarator decl = d.make(symbol, dim, init); tbl.append(name, decl); return decl; }
@Override public void atDeclarator(Declarator d) throws CompileError { d.setLocalVar(getMaxLocals()); d.setClassName(resolveClassName(d.getClassName())); int size; if (is2word(d.getType(), d.getArrayDim())) size = 2; else size = 1; incMaxLocals(size); /* NOTE: Array initializers has not been supported. */ ASTree init = d.getInitializer(); if (init != null) { doTypeCheck(init); atVariableAssign(null, '=', null, d, init, false); } }
public void atMethodDecl(MethodDecl method) throws CompileError { ASTList mods = method.getModifiers(); setMaxLocals(1); while (mods != null) { Keyword k = (Keyword)mods.head(); mods = mods.tail(); if (k.get() == STATIC) { setMaxLocals(0); inStaticMethod = true; } } ASTList params = method.getParams(); while (params != null) { atDeclarator((Declarator)params.head()); params = params.tail(); } Stmnt s = method.getBody(); atMethodBody(s, method.isConstructor(), method.getReturn().getType() == VOID); }
@Override public void atMethodDecl(MethodDecl method) throws CompileError { ASTList mods = method.getModifiers(); setMaxLocals(1); while (mods != null) { Keyword k = (Keyword)mods.head(); mods = mods.tail(); if (k.get() == STATIC) { setMaxLocals(0); inStaticMethod = true; } } ASTList params = method.getParams(); while (params != null) { atDeclarator((Declarator)params.head()); params = params.tail(); } Stmnt s = method.getBody(); atMethodBody(s, method.isConstructor(), method.getReturn().getType() == VOID); }
boolean doDup) throws CompileError int varType = d.getType(); int varArray = d.getArrayDim(); String varClass = d.getClassName();
private Stmnt parseTry(SymbolTable tbl) throws CompileError { lex.get(); // TRY Stmnt block = parseBlock(tbl); ASTList catchList = null; while (lex.lookAhead() == CATCH) { lex.get(); // CATCH if (lex.get() != '(') throw new SyntaxError(lex); SymbolTable tbl2 = new SymbolTable(tbl); Declarator d = parseFormalParam(tbl2); if (d.getArrayDim() > 0 || d.getType() != CLASS) throw new SyntaxError(lex); if (lex.get() != ')') throw new SyntaxError(lex); Stmnt b = parseBlock(tbl2); catchList = ASTList.append(catchList, new Pair(d, b)); } Stmnt finallyBlock = null; if (lex.lookAhead() == FINALLY) { lex.get(); // FINALLY finallyBlock = parseBlock(tbl); } return Stmnt.make(TRY, block, catchList, finallyBlock); }
private Stmnt parseTry(SymbolTable tbl) throws CompileError { lex.get(); // TRY Stmnt block = parseBlock(tbl); ASTList catchList = null; while (lex.lookAhead() == CATCH) { lex.get(); // CATCH if (lex.get() != '(') throw new SyntaxError(lex); SymbolTable tbl2 = new SymbolTable(tbl); Declarator d = parseFormalParam(tbl2); if (d.getArrayDim() > 0 || d.getType() != CLASS) throw new SyntaxError(lex); if (lex.get() != ')') throw new SyntaxError(lex); Stmnt b = parseBlock(tbl2); catchList = ASTList.append(catchList, new Pair(d, b)); } Stmnt finallyBlock = null; if (lex.lookAhead() == FINALLY) { lex.get(); // FINALLY finallyBlock = parseBlock(tbl); } return Stmnt.make(TRY, block, catchList, finallyBlock); }