Package net.hydromatic.morel.compile

Class Environments.MapEnvironment

java.lang.Object

net.hydromatic.morel.compile.Environment

net.hydromatic.morel.compile.Environments.MapEnvironment

Enclosing class:

Environments

static class Environments.MapEnvironment
extends Environment

Environment that keeps bindings in a map.

Field Summary

Fields

Modifier and Type	Field	Description
private final com.google.common.collect.ImmutableMultimap<Core.IdPat,Binding>	instanceMap
private final Map<Core.NamedPat,Binding>	map
private final Environment	parent

Constructor Summary

Constructors

Constructor	Description
MapEnvironment(Environment parent, com.google.common.collect.ImmutableMap<Core.NamedPat,Binding> map, com.google.common.collect.ImmutableMultimap<Core.IdPat,Binding> instanceMap)

Method Summary

Modifier and Type	Method	Description
void	collect(Core.NamedPat id, Consumer<Binding> consumer)	Calls a consumer for all bindings of id.
(package private) int	distance(int soFar, Core.NamedPat id)
private <E> int	find(Iterable<E> iterable, E e)
@Nullable Binding	getOpt(Core.NamedPat id)	Returns the binding of id if bound, null if not.
@Nullable Binding	getOpt2(Core.NamedPat id)	Alternative version of Environment.getOpt(Core.NamedPat).
@Nullable Binding	getTop(String name)	Returns the top binding of name.
(package private) Environment	nearestAncestorNotObscuredBy(Set<Core.NamedPat> names)	If this environment only defines bindings in the given set, returns its parent.
(package private) void	visit(Consumer<Binding> consumer)	Visits every variable binding in this environment.

Methods inherited from class net.hydromatic.morel.compile.Environment

asString, bind, bind, bindAll, forEachType, forEachValue, getOpt, getOverloads, getValueMap, hasOverloaded, plus, renumber

Methods inherited from class java.lang.Object

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

Field Details

parent

private final Environment parent

map

private final Map<Core.NamedPat,Binding> map

instanceMap

private final com.google.common.collect.ImmutableMultimap<Core.IdPat,Binding> instanceMap

Constructor Details

MapEnvironment

MapEnvironment(Environment parent,
 com.google.common.collect.ImmutableMap<Core.NamedPat,Binding> map,
 com.google.common.collect.ImmutableMultimap<Core.IdPat,Binding> instanceMap)

Method Details

visit

void visit(Consumer<Binding> consumer)

Description copied from class: Environment

Visits every variable binding in this environment.

Bindings that are obscured by more recent bindings of the same name are visited, but after the more obscuring bindings.

Specified by:

visit in class Environment

getTop

public @Nullable Binding getTop(String name)

Description copied from class: Environment

Returns the top binding of name.

If the top binding is overloaded, there may be other bindings. But at least it gives you a Core.NamedPat with which to call Environment.collect(Core.NamedPat, Consumer).

Specified by:

getTop in class Environment

getOpt

public @Nullable Binding getOpt(Core.NamedPat id)

Description copied from class: Environment

Returns the binding of id if bound, null if not.

Specified by:

getOpt in class Environment

getOpt2

public @Nullable Binding getOpt2(Core.NamedPat id)

Description copied from class: Environment

Alternative version of Environment.getOpt(Core.NamedPat).

Specified by:

getOpt2 in class Environment

collect

public void collect(Core.NamedPat id,
 Consumer<Binding> consumer)

Description copied from class: Environment

Calls a consumer for all bindings of id.

Specified by:

collect in class Environment

nearestAncestorNotObscuredBy

Environment nearestAncestorNotObscuredBy(Set<Core.NamedPat> names)

Description copied from class: Environment

If this environment only defines bindings in the given set, returns its parent. Never returns null. The empty environment returns itself.

Specified by:

nearestAncestorNotObscuredBy in class Environment

distance

int distance(int soFar,
 Core.NamedPat id)

Specified by:

distance in class Environment

find

private <E> int find(Iterable<E> iterable,
 E e)