fmrisc.Semantics
Class ValueTable

java.lang.Object
  fmrisc.Semantics.SymbolTable
      fmrisc.Semantics.ValueTable

public final class ValueTable
extends SymbolTable

Value table for named value lookup.

Constructor Summary

ValueTable()

Method Summary

ValueTable	cloneValueTable() creates a clone of the symbol table, the clone is a shallow copy (the symbols in the table are not cloned)
ValueSymbol	getSymbol(Identifier name) returns symbol associated to name (null, if none)
ValueSymbol	put(ValueDeclIdentifier name, Type type, Expression value, int depth) put named value in value table

Methods inherited from class fmrisc.Semantics.SymbolTable

cloneTable, getSymbols

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueTable

public ValueTable()

Method Detail

cloneValueTable

public ValueTable cloneValueTable()

creates a clone of the symbol table, the clone is a shallow copy (the symbols in the table are not cloned)

put

public ValueSymbol put(ValueDeclIdentifier name,
                       Type type,
                       Expression value,
                       int depth)

put named value in value table

Parameters:

name - the name of the value

type - the type associated to the value

value - the value itself (may be null)

depth - the current environment depth

Returns:

constructed symbol (null, if an error occured)

getSymbol

public ValueSymbol getSymbol(Identifier name)

returns symbol associated to name (null, if none)

Parameters:

name - the name

Returns:

the symbol associated to the name (may be null)