org.apache.xalan.xsltc.compiler
public abstract class Pattern extends Expression
Method Summary | |
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abstract double | getPriority()
Returns the priority of this pattern (section 5.5 in the XSLT spec). |
abstract void | translate(ClassGenerator classGen, MethodGenerator methodGen)
Translate this node into JVM bytecodes. |
abstract Type | typeCheck(SymbolTable stable)
Returns the type of a pattern, which is always a NodeType .
|
translate
on a pattern, make sure that the node being
matched is on top of the stack. After calling translate
,
make sure to backpatch both true and false lists. True lists are the
default, in the sense that they always "fall through". If this
is not the intended semantics (e.g., see
{@link org.apache.xalan.xsltc.compiler.AlternativePattern#translate})
then a GOTO must be appended to the instruction list after calling
translate
.NodeType
.
A NodeType
has a number of subtypes defined by
NodeType._type
corresponding to each type of node.