All Implemented Interfaces:

java.util.Map<java.lang.Object,Declaration>

public class NameLookup
extends GeneralHashTable<java.lang.Object,Declaration>

• Nested Class Summary

  • Nested classes/interfaces inherited from class java.util.AbstractMap

    java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

  • Nested classes/interfaces inherited from interface java.util.Map

    java.util.Map.Entry<K,V>

• Field Summary

  • Fields inherited from class gnu.kawa.util.AbstractHashTable

    DEFAULT_INITIAL_SIZE, mask, num_bindings, table

• Constructor Summary

  Constructors

  Constructor and Description
  NameLookup (Language language)

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  boolean	doSaveTopLevelRedefs () When true, top-level defs should push rather then replace old ones.
  void	getCompletingSymbols (java.lang.String initialPart, int namespace, java.util.List<? super java.lang.String> candidates)
  static NameLookup	getInstance (Environment env, Language language) Get or create a NameLookup instance for a given Environment.
  Language	getLanguage ()
  Declaration	lookup (java.lang.Object symbol, boolean function)
  Declaration	lookup (java.lang.Object symbol, int namespace)
  boolean	pop (Declaration decl)
  void	pop (ScopeExp exp)
  void	popSaveTopLevelRedefs ()
  void	push (Declaration decl)
  void	push (ScopeExp exp)
  void	pushSaveTopLevelRedefs ()
  void	removeSubsumed (Declaration decl) Remove visible declarations subsumed (hidden) by a given declaration.
  static void	setInstance (Environment env, NameLookup instance)
  void	setLanguage (Language language)
  protected boolean	subsumedBy (Declaration decl, Declaration other) True if decl subsumes (hides) other.

  • Methods inherited from class gnu.kawa.util.GeneralHashTable

    allocEntries, getEntryHashCode, getEntryNext, getNode, makeEntry, setEntryNext

  • Methods inherited from class gnu.kawa.util.AbstractHashTable

    clear, entrySet, get, get, getOrDefault, hash, hashToIndex, matches, matches, put, put, rehash, remove, size

  • Methods inherited from class java.util.AbstractMap

    clone, containsKey, containsValue, equals, hashCode, isEmpty, keySet, putAll, toString, values

  • Methods inherited from class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

  • Methods inherited from interface java.util.Map

    compute, computeIfAbsent, computeIfPresent, forEach, merge, putIfAbsent, remove, replace, replace, replaceAll

• Constructor Detail

  • NameLookup

    public NameLookup(Language language)

• Method Detail

  • getLanguage

    public Language getLanguage()

  • setLanguage

    public void setLanguage(Language language)

  • getInstance

    public static NameLookup getInstance(Environment env,
     Language language)

    Get or create a NameLookup instance for a given Environment. We want the same NameLookup instance to be used for multiple interactive commands in the same "session", to preserve top-level declarations. We do that by registering it in the Environment.

  • setInstance

    public static void setInstance(Environment env,
     NameLookup instance)

  • doSaveTopLevelRedefs

    public boolean doSaveTopLevelRedefs()

    When true, top-level defs should push rather then replace old ones. Otherwise, a module-level declaration should replace a matching previous declaration, to avoid leaks. However, sometimes we temporarily push new declarations that should not permanently replace old declarations - for example when a hygienic macro changes the current scope.

  • pushSaveTopLevelRedefs

    public void pushSaveTopLevelRedefs()

  • popSaveTopLevelRedefs

    public void popSaveTopLevelRedefs()

  • push

    public void push(Declaration decl)

  • pop

    public boolean pop(Declaration decl)

  • push

    public void push(ScopeExp exp)

  • pop

    public void pop(ScopeExp exp)

  • removeSubsumed

    public void removeSubsumed(Declaration decl)

    Remove visible declarations subsumed (hidden) by a given declaration. This is primarily used to avoid memory leaks.

  • subsumedBy

    protected boolean subsumedBy(Declaration decl,
     Declaration other)

    True if decl subsumes (hides) other.

  • lookup

    public Declaration lookup(java.lang.Object symbol,
     int namespace)

  • lookup

    public Declaration lookup(java.lang.Object symbol,
     boolean function)

  • getCompletingSymbols

    public void getCompletingSymbols(java.lang.String initialPart,
     int namespace,
     java.util.List<? super java.lang.String> candidates)