public class VarLabel_c extends Label_c implements VarLabel
VarLabel
interface.description, toJava, variables
Modifier | Constructor and Description |
---|---|
protected |
VarLabel_c() |
|
VarLabel_c(java.lang.String name,
java.lang.String description,
JifTypeSystem ts,
polyglot.util.Position pos) |
Modifier and Type | Method and Description |
---|---|
java.lang.String |
componentString(java.util.Set<Label> printedLabels)
return a string s such that {s} is a label
|
boolean |
equalsImpl(polyglot.types.TypeObject o) |
int |
hashCode() |
boolean |
isCanonical() |
boolean |
isComparable()
Is this label comparable to other labels?
|
boolean |
isCovariant()
Is this label covariant?
|
boolean |
isDisambiguatedImpl()
Check if the label is disambiguated, without recursing into child labels.
|
boolean |
isEnumerable()
Are the components of this label enumerable?
|
boolean |
isRuntimeRepresentable() |
boolean |
leq_(Label L,
LabelEnv env,
LabelEnv.SearchState state)
Implementation of leq, should only be called by JifTypeSystem
|
boolean |
mustRuntimeRepresentable()
Does this var label need to map to a runtime representable label?
|
java.lang.String |
name() |
void |
setMustRuntimeRepresentable()
Set the mustRuntimeRepresentable flag, meaning that any solution for this
VarLabel must be to a runtime representable label.
|
java.util.Set<Variable> |
variableComponents()
The set of variables that this label contains as components.
|
java.util.Set<Variable> |
variables()
The set of variables that this label contains including variables contained
in upper bounds of arg labels.
|
componentString, confProjection, copy, description, hasVariableComponents, hasVariables, hasWritersToReaders, integProjection, isBottom, isDisambiguated, isInvariant, isTop, labelCheck, normalize, setDescription, simplify, simplifyImpl, subst, throwTypes, toJava, toJava, toString, toString
typeSystem
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
componentString, confProjection, copy, description, hasVariableComponents, hasVariables, hasWritersToReaders, integProjection, isBottom, isDisambiguated, isInvariant, isTop, labelCheck, normalize, setDescription, simplify, subst, throwTypes, toJava, toString, toString
toJava
typeSystem
protected VarLabel_c()
public VarLabel_c(java.lang.String name, java.lang.String description, JifTypeSystem ts, polyglot.util.Position pos)
public boolean isEnumerable()
Label
For example, Singletons are enumerable, JoinLabels are enumerable, RuntimeLabel (the label of all runtime representable components) is not enumerable. NOTE: The components of a label are not neccessarily stuck together with a join operation. For example, the MeetLabel uses the meet operation between its components.
isEnumerable
in interface Label
public boolean isComparable()
Label
For example, an UnknownLabel is not comparable to others, neither is a VarLabel. Most other labels are.
isComparable
in interface Label
public boolean isCanonical()
isCanonical
in interface Param
isCanonical
in interface polyglot.types.TypeObject
public boolean isDisambiguatedImpl()
Label_c
isDisambiguatedImpl
in class Label_c
public boolean isRuntimeRepresentable()
isRuntimeRepresentable
in interface Label
isRuntimeRepresentable
in interface Param
public boolean isCovariant()
Label
isCovariant
in interface Label
public void setMustRuntimeRepresentable()
Variable
setMustRuntimeRepresentable
in interface Variable
public boolean mustRuntimeRepresentable()
Variable
mustRuntimeRepresentable
in interface Variable
public java.lang.String componentString(java.util.Set<Label> printedLabels)
Label
componentString
in interface Label
componentString
in class Label_c
printedLabels
- the set of labels for which auxiliary information should be
omitted.public boolean equalsImpl(polyglot.types.TypeObject o)
equalsImpl
in interface polyglot.types.TypeObject
equalsImpl
in class Label_c
public int hashCode()
hashCode
in class polyglot.types.TypeObject_c
public boolean leq_(Label L, LabelEnv env, LabelEnv.SearchState state)
Label
public java.util.Set<Variable> variableComponents()
Label
variableComponents
in interface Label
variableComponents
in class Label_c
public java.util.Set<Variable> variables()
Label