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java.lang.Objectpolyglot.ast.Node_c
polyglot.ast.Term_c
polyglot.ast.Stmt_c
polyglot.ast.Case_c
public class Case_c
A Case
is a representation of a Java case
statement. It can only be contained in a Switch
.
Field Summary | |
---|---|
protected Expr |
expr
|
protected long |
value
|
Fields inherited from class polyglot.ast.Term_c |
---|
exceptions, reachable |
Fields inherited from class polyglot.ast.Node_c |
---|
del, error, ext, position |
Fields inherited from interface polyglot.ast.Term |
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ENTRY, EXIT |
Constructor Summary | |
---|---|
Case_c(Position pos,
Expr expr)
|
Method Summary | |
---|---|
java.util.List |
acceptCFG(CFGBuilder v,
java.util.List succs)
Visit this term in evaluation order. |
Node |
checkConstants(ConstantChecker cc)
Check if the node is a compile-time constant. |
Type |
childExpectedType(Expr child,
AscriptionVisitor av)
Get the expected type of a child expression of this . |
Node |
copy(NodeFactory nf)
Produce a copy of this node using the given NodeFactory. |
Expr |
expr()
Get the case label. |
Case |
expr(Expr expr)
Set the case label. |
Term |
firstChild()
Return the first direct subterm performed when evaluating this term. |
boolean |
isDefault()
Returns true iff this is the default case. |
void |
prettyPrint(CodeWriter w,
PrettyPrinter tr)
Write the statement to an output file. |
protected Case_c |
reconstruct(Expr expr)
Reconstruct the statement. |
java.lang.String |
toString()
|
Node |
typeCheck(TypeChecker tc)
Type check the statement. |
long |
value()
Returns the value of the case label. |
Case |
value(long value)
Set the value of the case label. |
Node |
visitChildren(NodeVisitor v)
Visit the children of the statement. |
Methods inherited from class polyglot.ast.Term_c |
---|
exceptionCheck, exceptions, exceptions, listChild, reachable, reachable |
Methods inherited from class polyglot.ast.Node_c |
---|
addDecls, buildTypes, buildTypesEnter, copy, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, dump, dump, dump, enterChildScope, enterScope, error, error, exceptionCheckEnter, ext, ext, ext, ext, init, isDisambiguated, isTypeChecked, node, position, position, prettyPrint, prettyPrint, print, printBlock, printSubStmt, throwTypes, translate, typeCheckEnter, typeCheckOverride, visit, visitChild, 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.Term |
---|
exceptions, exceptions, reachable, reachable |
Methods inherited from interface polyglot.ast.Node |
---|
del, del, dump, error, error, ext, ext, ext, ext, isDisambiguated, isTypeChecked, position, position, visit, visitChild, visitEdge, visitList |
Methods inherited from interface polyglot.ast.JL |
---|
init, node |
Methods inherited from interface polyglot.ast.NodeOps |
---|
addDecls, buildTypes, buildTypesEnter, copy, disambiguate, disambiguateEnter, disambiguateOverride, dump, dump, enterChildScope, enterScope, exceptionCheck, exceptionCheckEnter, prettyPrint, prettyPrint, throwTypes, translate, typeCheckEnter, typeCheckOverride |
Methods inherited from interface polyglot.util.Copy |
---|
copy |
Field Detail |
---|
protected Expr expr
protected long value
Constructor Detail |
---|
public Case_c(Position pos, Expr expr)
Method Detail |
---|
public boolean isDefault()
isDefault
in interface Case
public Expr expr()
default
case.
expr
in interface Case
public Case expr(Expr expr)
expr
in interface Case
public long value()
value
in interface Case
public Case value(long value)
value
in interface Case
protected Case_c reconstruct(Expr expr)
public Node visitChildren(NodeVisitor v)
visitChildren
in interface NodeOps
visitChildren
in class Node_c
v
- The visitor that will traverse/rewrite the AST.
this
.public Node typeCheck(TypeChecker tc) throws SemanticException
typeCheck
in interface NodeOps
typeCheck
in class Node_c
tc
- The type checking visitor.
SemanticException
public Node checkConstants(ConstantChecker cc) throws SemanticException
NodeOps
leave()
method of the
visitor. The method should perform work that should be done
after visiting the children of the node. The method may return
this
or a new copy of the node which will be
installed as a child of the node's parent.
checkConstants
in interface NodeOps
checkConstants
in class Node_c
cc
- The constant checking visitor.
SemanticException
public Type childExpectedType(Expr child, AscriptionVisitor av)
Node
this
.
The expected type is determined by the context in that the child occurs
(e.g., for x = e
, the expected type of e
is
the declared type of x
.
The expected type should impose the least constraints on the child's
type that are allowed by the parent node.
childExpectedType
in interface Node
childExpectedType
in class Node_c
child
- A child expression of this node.av
- An ascription visitor.
child
.public java.lang.String toString()
toString
in class Node_c
public void prettyPrint(CodeWriter w, PrettyPrinter tr)
prettyPrint
in interface NodeOps
prettyPrint
in class Node_c
w
- The code writer to which to write.tr
- The pretty printer. This is not a visitor.public Term firstChild()
Term
firstChild
in interface Term
public java.util.List acceptCFG(CFGBuilder v, java.util.List succs)
Term_c
acceptCFG
in interface Term
acceptCFG
in class Term_c
public Node copy(NodeFactory nf)
NodeOps
copy
in interface NodeOps
copy
in class Node_c
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