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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.Unary_c
public class Unary_c
A Unary
represents a Java unary expression, an
immutable pair of an expression and an operator.
Nested Class Summary |
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Nested classes/interfaces inherited from interface polyglot.ast.Unary |
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Unary.Operator |
Field Summary | |
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protected Expr |
expr
|
protected Unary.Operator |
op
|
Fields inherited from class polyglot.ext.jl.ast.Expr_c |
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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 |
Fields inherited from interface polyglot.ast.Unary |
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BIT_NOT, NEG, NOT, POS, POST_DEC, POST_INC, PRE_DEC, PRE_INC |
Constructor Summary | |
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Unary_c(Position pos,
Unary.Operator op,
Expr expr)
|
Method Summary | |
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java.util.List |
acceptCFG(CFGBuilder v,
java.util.List succs)
Visit this term in evaluation order. |
Type |
childExpectedType(Expr child,
AscriptionVisitor av)
Get the expected type of a child expression of this . |
java.lang.Object |
constantValue()
Returns the constant value of the expression, if any. |
Term |
entry()
Return the first (sub)term performed when evaluating this term. |
Expr |
expr()
Get the sub-expression of the expression. |
Unary |
expr(Expr expr)
Set the sub-expression of the expression. |
boolean |
isConstant()
Return whether the expression evaluates to a constant. |
Unary.Operator |
operator()
Get the operator. |
Unary |
operator(Unary.Operator op)
Set the operator. |
Precedence |
precedence()
Get the precedence of the expression. |
void |
prettyPrint(CodeWriter w,
PrettyPrinter tr)
Pretty-print the AST using the given CodeWriter . |
protected Unary_c |
reconstruct(Expr expr)
Reconstruct the expression. |
java.lang.String |
toString()
Check exceptions thrown by the statement. |
Node |
typeCheck(TypeChecker tc)
Type check the expression. |
Node |
visitChildren(NodeVisitor v)
Visit the children of the expression. |
Methods inherited from class polyglot.ext.jl.ast.Expr_c |
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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 |
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exceptionCheck, exceptions, exceptions, listEntry, reachable, reachable |
Methods inherited from class polyglot.ext.jl.ast.Node_c |
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addDecls, addMembers, addMembersEnter, addMembersOverride, buildTypesEnter, buildTypesOverride, 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, visitEdge, visitList |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface polyglot.ast.Expr |
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printSubExpr, printSubExpr, type |
Methods inherited from interface polyglot.ast.Node |
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del, del, dump, ext, ext, ext, ext, position, position, visit, visitChild, visitEdge, visitList |
Methods inherited from interface polyglot.ast.JL |
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init, node |
Methods inherited from interface polyglot.ast.NodeOps |
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addDecls, addMembers, addMembersEnter, buildTypes, buildTypesEnter, disambiguate, disambiguateEnter, enterScope, enterScope, exceptionCheck, exceptionCheckEnter, throwTypes, translate, typeCheckEnter |
Methods inherited from interface polyglot.util.Copy |
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copy |
Methods inherited from interface polyglot.ast.Typed |
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type |
Methods inherited from interface polyglot.ast.Term |
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exceptions, exceptions, reachable, reachable |
Field Detail |
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protected Unary.Operator op
protected Expr expr
Constructor Detail |
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public Unary_c(Position pos, Unary.Operator op, Expr expr)
Method Detail |
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public Precedence precedence()
precedence
in interface Expr
precedence
in class Expr_c
public Expr expr()
expr
in interface Unary
public Unary expr(Expr expr)
expr
in interface Unary
public Unary.Operator operator()
operator
in interface Unary
public Unary operator(Unary.Operator op)
operator
in interface Unary
protected Unary_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 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)
Node_c
CodeWriter
.
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 entry()
Term_c
entry
in interface Term
entry
in class Term_c
public java.util.List acceptCFG(CFGBuilder v, java.util.List succs)
Term_c
acceptCFG
in interface Term
acceptCFG
in class Term_c
public boolean isConstant()
Expr
isConstant
in interface Expr
isConstant
in class Expr_c
public java.lang.Object constantValue()
Expr
constantValue
in interface Expr
constantValue
in class Expr_c
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