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java.lang.Objectpolyglot.ext.jl.ast.Node_c
polyglot.ext.jl.ast.Term_c
polyglot.ext.jl.ast.Stmt_c
polyglot.ext.jl.ast.Switch_c
A Switch is an immutable representation of a Java
switch statement. Such a statement has an expression which
is evaluated to determine where to branch to, an a list of labels
and block statements which are conditionally evaluated. One of the
labels, rather than having a constant expression, may be lablled
default.
| Field Summary | |
protected java.util.List |
elements
|
protected Expr |
expr
|
| Fields inherited from class polyglot.ext.jl.ast.Term_c |
exceptions, reachable |
| Fields inherited from class polyglot.ext.jl.ast.Node_c |
del, ext, position |
| Constructor Summary | |
Switch_c(Position pos,
Expr expr,
java.util.List elements)
|
|
| Method Summary | |
java.util.List |
acceptCFG(CFGBuilder v,
java.util.List succs)
Visit this node, calling calling v.edge() for each successor in succs, if data flows on that edge. |
Type |
childExpectedType(Expr child,
AscriptionVisitor av)
Get the expected type of a child expression of this. |
java.util.List |
elements()
Get the switch elements of the statement. |
Switch |
elements(java.util.List elements)
Set the switch elements of the statement. |
Context |
enterScope(Context c)
Push a new scope upon entering this node, and add any declarations to the context that should be in scope when visiting children of this node. |
Term |
entry()
Return the first (sub)term performed when evaluating this term. |
Expr |
expr()
Get the expression to switch on. |
Switch |
expr(Expr expr)
Set the expression to switch on. |
void |
prettyPrint(CodeWriter w,
PrettyPrinter tr)
Write the statement to an output file. |
protected Switch_c |
reconstruct(Expr expr,
java.util.List elements)
Reconstruct the statement. |
java.lang.String |
toString()
|
Node |
typeCheck(TypeChecker tc)
Type check the statement. |
Node |
visitChildren(NodeVisitor v)
Visit the children of the statement. |
| 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, buildTypes, buildTypesEnter, buildTypesOverride, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, dump, enterScope, exceptionCheckEnter, exceptionCheckOverride, ext, ext, ext, ext, init, node, position, position, 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, 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, exceptionCheck, exceptionCheckEnter, throwTypes, translate, typeCheckEnter |
| Methods inherited from interface polyglot.util.Copy |
copy |
| Field Detail |
protected Expr expr
protected java.util.List elements
| Constructor Detail |
public Switch_c(Position pos,
Expr expr,
java.util.List elements)
| Method Detail |
public Expr expr()
expr in interface Switchpublic Switch expr(Expr expr)
expr in interface Switchpublic java.util.List elements()
elements in interface SwitchSwitchElement.public Switch elements(java.util.List elements)
elements in interface Switchelements - A list of SwitchElement.
protected Switch_c reconstruct(Expr expr,
java.util.List elements)
public Context enterScope(Context c)
NodeOpsaddDecls when leaving the node
for that.
enterScope in interface NodeOpsenterScope in class Node_cc - the current Context
Context to be used for visiting this node.public Node visitChildren(NodeVisitor v)
visitChildren in interface NodeOpsvisitChildren in class Node_c
public Node typeCheck(TypeChecker tc)
throws SemanticException
typeCheck in interface NodeOpstypeCheck in class Node_cSemanticException
public Type childExpectedType(Expr child,
AscriptionVisitor av)
Nodethis.
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 NodechildExpectedType in class Node_cpublic java.lang.String toString()
toString in class Node_c
public void prettyPrint(CodeWriter w,
PrettyPrinter tr)
prettyPrint in interface NodeOpsprettyPrint in class Node_cpublic Term entry()
Term
entry in interface Termentry in class Term_c
public java.util.List acceptCFG(CFGBuilder v,
java.util.List succs)
Term
acceptCFG in interface TermacceptCFG in class Term_c
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