Class program

java.lang.Object
  TreeNode
      Program
          program

class program

extends Program

Defines AST constructor 'program'.

See TreeNode for full documentation.

Field Summary

Classes	classes
protected int	lineNumber line in the source file from which this node came.

Constructor Summary

program(int lineNumber, Classes a1)
Creates "program" AST node.

Method Summary

void	cgen(java.io.PrintStream s) This method is the entry point to the code generator.
protected AbstractSymbol	copy_AbstractSymbol(AbstractSymbol sym) Copies an AbstractSymbol value.
protected java.lang.Boolean	copy_Boolean(java.lang.Boolean b) Copies a boolean value.
TreeNode	copy() Creates a copy of this node.
protected void	dump_AbstractSymbol(java.io.PrintStream out, int n, AbstractSymbol sym) Dumps a printable representation of an AbstactSymbol value.
protected void	dump_Boolean(java.io.PrintStream out, int n, java.lang.Boolean b) Dumps a printable representation of a boolean value.
protected void	dump_line(java.io.PrintStream out, int n) Dumps a printable representation of current line number This method is used internally by the generated AST classes
void	dump_with_types(java.io.PrintStream out, int n)
void	dump(java.io.PrintStream out, int n) Pretty-prints this node to this output stream.
int	getLineNumber() Retreives the line number from which this node came.
void	semant() This method is the entry point to the semantic checker.
TreeNode	set(TreeNode other) Sets the values of this node object to the values of a given node.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

classes

public Classes classes

lineNumber

protected int lineNumber

line in the source file from which this node came.

Constructor Detail

program

public program(int lineNumber,
               Classes a1)

Creates "program" AST node.

Parameters:

lineNumber - the line in the source file from which this node came.

Method Detail

copy

public TreeNode copy()

Description copied from class: TreeNode

Creates a copy of this node.

Specified by:

copy in class TreeNode

Returns:

a copy of this node

dump

public void dump(java.io.PrintStream out,
                 int n)

Description copied from class: TreeNode

Pretty-prints this node to this output stream.

Specified by:

dump in class TreeNode

Parameters:

out - the output stream

n - the number of spaces to indent the output

dump_with_types

public void dump_with_types(java.io.PrintStream out,
                            int n)

Specified by:

dump_with_types in class Program

semant

public void semant()

This method is the entry point to the semantic checker. You will need to complete it in programming assignment 4.

Your checker should do the following two things:

1. Check that the program is semantically correct
2. Decorate the abstract syntax tree with type information by setting the type field in each Expression node. (see tree.h)

You are free to first do (1) and make sure you catch all semantic errors. Part (2) can be done in a second stage when you want to test the complete compiler.

Specified by:

semant in class Program

cgen

public void cgen(java.io.PrintStream s)

This method is the entry point to the code generator. All of the work of the code generator takes place within CgenClassTable constructor.

Specified by:

cgen in class Program

Parameters:

s - the output stream

See Also:

CgenClassTable

set

public TreeNode set(TreeNode other)

Sets the values of this node object to the values of a given node.

Parameters:

other - the other node

Returns:

this node

getLineNumber

public int getLineNumber()

Retreives the line number from which this node came.

Returns:

the line number

copy_Boolean

protected java.lang.Boolean copy_Boolean(java.lang.Boolean b)

Copies a boolean value. This method is used internally by the generated AST classes

copy_AbstractSymbol

protected AbstractSymbol copy_AbstractSymbol(AbstractSymbol sym)

Copies an AbstractSymbol value. This method is used internally by the generated AST classes

dump_Boolean

protected void dump_Boolean(java.io.PrintStream out,
                            int n,
                            java.lang.Boolean b)

Dumps a printable representation of a boolean value. This method is used internally by the generated AST classes

dump_AbstractSymbol

protected void dump_AbstractSymbol(java.io.PrintStream out,
                                   int n,
                                   AbstractSymbol sym)

Dumps a printable representation of an AbstactSymbol value. This method is used internally by the generated AST classes

dump_line

protected void dump_line(java.io.PrintStream out,
                         int n)

Dumps a printable representation of current line number This method is used internally by the generated AST classes