Class SymbolTableEntry

java.lang.Object
  SymbolTableEntry

Direct Known Subclasses:

BlockEntry, FunctionEntry, VariableEntry

public abstract class SymbolTableEntry

extends java.lang.Object

A SymbolTableEntry holds semantic information for a symbol declared in a program. The information is the string name of the symbol and its declared data type.

SymbolTableEntry is an abstract class, with extensions for variable data entries and functional entries. These are defined, respectively, in the VariableEntry and FunctionEntry classes.

Field Summary

java.lang.String	name This symbol's name
TreeNode	type Data type, represented as a parse tree.

Constructor Summary

SymbolTableEntry()
Construct this with null data fields.

SymbolTableEntry(java.lang.String name, TreeNode type)
Construct this with the given data field values.

Method Summary

protected java.lang.String	doToString(int level, java.lang.String type) Common work doer for other toStrings.
protected java.lang.String	indentString(int level) Convenience method for creating an indent string.
java.lang.String	toString() Return toString(0).
java.lang.String	toString(int level) Return the string representation of this' two fields, with other fields added by this' extensions.
java.lang.String	toStringDeep() Return toStringDeep(0).
java.lang.String	toStringDeep(int level) Version of toString that dumps out the full type structure, not just its root ID.

Methods inherited from class java.lang.Object

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

Field Detail

name

public java.lang.String name

This symbol's name

type

public TreeNode type

Data type, represented as a parse tree.

Constructor Detail

SymbolTableEntry

public SymbolTableEntry()

Construct this with null data fields.

SymbolTableEntry

public SymbolTableEntry(java.lang.String name,
                        TreeNode type)

Construct this with the given data field values.

Method Detail

toString

public java.lang.String toString()

Return toString(0).

toStringDeep

public java.lang.String toStringDeep()

Return toStringDeep(0).

toString

public java.lang.String toString(int level)

Return the string representation of this' two fields, with other fields added by this' extensions. The fields are output on a single line, indented level * 2 blanks. Only the shallowest type string is output, namely just its root tree ID. The toStringDeep method outputs the full type field.

toStringDeep

public java.lang.String toStringDeep(int level)

Version of toString that dumps out the full type structure, not just its root ID.

doToString

protected java.lang.String doToString(int level,
                                      java.lang.String type)

Common work doer for other toStrings.

indentString

protected java.lang.String indentString(int level)

Convenience method for creating an indent string.