BuggySemanticInput.mj

// Test input for checking symbol table handling
//**************************************************
// invoke as:  java MJ.Compiler BuggySemanticInput.mj
//**************************************************

program P
  final int  c1 = 'x';
//----------------| integer constant expected
  final char cc = 3;
//----------------| character constant expected

  class C {
    int f;
  }

  int i;
  char ch;
  C c, c2;
  char[] a;

     ch x;
//---| type expected
     ch[] y;
//---| type expected
  char i;
//-----| i already declared

{
  void foo (int x) {
    return 3;
//---------| void method must not return a value
  }

  int bar (char c) {
    if (c > 'x') return; else return c;
//---------------------| return expression expected
//-----------------------------------| return type must match method type
  }

  int main()
//| must be void
  {
    i = 1;
    int = 3;
//--| type identifier not allowed here
    ch = 3;
//--------| incompatible types in assignment
    i = 3 * v + 1;
//----------| v not found
    x(3, ch);
//--| called object is not a method
    read(foo);
//--------| read object must be a variable
    read(c);
//-------| can only read int or char variables
    print(c);
//--------| can only print int or char variables
    foo(3, i);
//----------| more actual than formal parameters
    foo();
//-------| fewer actual than formal parameters
    foo('x');
//------| parameter type mismatch
    if (i == 'a') i = i + ch; else i = i * ch;
//------------| type mismatch
//-------------------------| operands must be of type int
//------------------------------------------| operands must be on type int
    if (c > c2) c = - c2;
//------------| invalid compare
//---------------------| integer operand required
    i = ch();
//------| called object is not a method
    i = new int;
//------------| class type expected
    a = new ch[3];
//-----------| type expected
    a = new char['3'];
//---------------| array size must be an integer
    i = a.f + 3 * c.g;
//------| dereferenced object is not a class
//------------------| g not found
    i = foo[2];
//-------| bad method call
    i = ch[2];
//--------| indexed object is not an array
    i = a['2'];
//-------| indexed object is not an array
//----------| index must be an int
  }
}