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java.lang.Objectpolyglot.ext.jl.ast.Node_c
polyglot.ext.jl.ast.Term_c
polyglot.ext.jl.ast.Expr_c
polyglot.ext.jl.ast.Lit_c
polyglot.ext.jl.ast.NullLit_c
public class NullLit_c
The Java literal null.
| Field Summary |
|---|
| Fields inherited from class polyglot.ext.jl.ast.Expr_c |
|---|
type |
| Fields inherited from class polyglot.ext.jl.ast.Term_c |
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exceptions, reachable |
| Fields inherited from class polyglot.ext.jl.ast.Node_c |
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del, ext, position |
| Constructor Summary | |
|---|---|
NullLit_c(Position pos)
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| Method Summary | |
|---|---|
java.lang.Object |
constantValue()
Returns the constant value of the expression, if any. |
java.lang.Object |
objValue()
Get the value of the expression, as an object. |
void |
prettyPrint(CodeWriter w,
PrettyPrinter tr)
Write the expression to an output file. |
java.lang.String |
toString()
|
Node |
typeCheck(TypeChecker tc)
Type check the expression. |
| Methods inherited from class polyglot.ext.jl.ast.Lit_c |
|---|
acceptCFG, entry, isConstant, precedence |
| Methods inherited from class polyglot.ext.jl.ast.Expr_c |
|---|
booleanValue, buildTypes, byteValue, charValue, doubleValue, dump, floatValue, intValue, longValue, printSubExpr, printSubExpr, shortValue, stringValue, type, type |
| Methods inherited from class polyglot.ext.jl.ast.Term_c |
|---|
exceptionCheck, exceptions, exceptions, listEntry, reachable, reachable |
| Methods inherited from class polyglot.ext.jl.ast.Node_c |
|---|
addDecls, addMembers, addMembersEnter, addMembersOverride, buildTypesEnter, buildTypesOverride, childExpectedType, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, enterScope, enterScope, exceptionCheckEnter, exceptionCheckOverride, ext, ext, ext, ext, init, node, position, position, print, printBlock, printSubStmt, throwTypes, translate, typeCheckEnter, typeCheckOverride, visit, visitChild, visitChildren, visitEdge, visitList |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface polyglot.ast.Expr |
|---|
isConstant, precedence, printSubExpr, printSubExpr, type |
| Methods inherited from interface polyglot.ast.Node |
|---|
childExpectedType, del, del, dump, ext, ext, ext, ext, position, position, visit, visitChild, visitEdge, visitList |
| Methods inherited from interface polyglot.ast.JL |
|---|
init, node |
| Methods inherited from interface polyglot.ast.NodeOps |
|---|
addDecls, addMembers, addMembersEnter, buildTypes, buildTypesEnter, disambiguate, disambiguateEnter, enterScope, enterScope, exceptionCheck, exceptionCheckEnter, throwTypes, translate, typeCheckEnter, visitChildren |
| Methods inherited from interface polyglot.util.Copy |
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copy |
| Methods inherited from interface polyglot.ast.Typed |
|---|
type |
| Methods inherited from interface polyglot.ast.Term |
|---|
acceptCFG, entry, exceptions, exceptions, reachable, reachable |
| Constructor Detail |
|---|
public NullLit_c(Position pos)
| Method Detail |
|---|
public Node typeCheck(TypeChecker tc)
typeCheck in interface NodeOpstypeCheck in class Node_ctc - The type checking visitor.public java.lang.Object objValue()
public java.lang.String toString()
toString in class Node_c
public void prettyPrint(CodeWriter w,
PrettyPrinter tr)
prettyPrint in interface NodeOpsprettyPrint in class Node_cw - The code writer to which to write.tr - The pretty printer. This is not a visitor.public java.lang.Object constantValue()
Expr
constantValue in interface ExprconstantValue in class Lit_c
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