Package gnu.expr

Class BlockExp

java.lang.Object

gnu.mapping.PropertySet

gnu.mapping.Procedure

gnu.expr.Expression

gnu.expr.BlockExp

All Implemented Interfaces:

gnu.kawa.format.Printable, Named, SourceLocator, javax.xml.transform.SourceLocator, org.xml.sax.Locator

public class BlockExp
extends Expression

Class used to implement a block that can be exited.

Nested Class Summary

Nested classes/interfaces inherited from interface gnu.text.SourceLocator

SourceLocator.Simple

Field Summary

Fields inherited from class gnu.expr.Expression

applyMethodExpression, flags, NEXT_AVAIL_FLAG, noExpressions, type, VALIDATED

Fields inherited from class gnu.mapping.Procedure

applyMethodType, applyToConsumerDefault, applyToConsumerMethod, applyToObjectDefault, applyToObjectMethod, compilerKey, compilerXKey, inlineIfConstantSymbol, validateApplyKey, validateXApplyKey

Fields inherited from class gnu.mapping.PropertySet

nameKey

Constructor Summary

Constructors

Constructor	Description
BlockExp()

Method Summary

Modifier and Type	Method	Description
void	apply(CallContext ctx)	Evaluate the expression.
void	compile(Compilation comp, Target target)
protected boolean	mustCompile()
void	print(gnu.kawa.io.OutPort out)
void	setBody(Expression body)
void	setBody(Expression body, Expression exitBody)
void	setLabel(Declaration label)
void	setRunFinallyBlocks(boolean value)
java.lang.String	toString()
protected <R,D> R	visit(ExpVisitor<R,D> visitor, D d)
protected <R,D> void	visitChildren(ExpVisitor<R,D> visitor, D d)

Methods inherited from class gnu.expr.Expression

applyMethodExpression, calculateType, checkLiteralKeyword, compile, compile, compileWithPosition, compileWithPosition, deepCopy, deepCopy, deepCopy, deepCopy, eval, eval, getColumnNumber, getEndColumn, getEndLine, getFileName, getFlag, getFlags, getLineNumber, getPublicId, getStartColumn, getStartLine, getSystemId, getType, getTypeRaw, isSingleValue, isStableSourceLocation, makeWhile, maybeSetLine, neverReturns, numArgs, print, printLineColumn, setFile, setFlag, setFlag, setLine, setLine, setLine, setLine, setLine, setLocation, setType, side_effects, validateApply, valueIfConstant

Methods inherited from class gnu.mapping.Procedure

apply0, apply1, apply2, apply3, apply4, applyL, applyN, applyToConsumerDefault, applyToObjectDefault, checkArgCount, checkBadCode, getApplyMethod, getApplyToConsumerMethod, getApplyToObjectMethod, getReturnType, getSetter, getSourceLocation, isSideEffectFree, lookupApplyHandle, maxArgs, maxArgs, minArgs, minArgs, set0, set1, setN, setSetter, setSourceLocation

Methods inherited from class gnu.mapping.PropertySet

getName, getProperty, getSymbol, removeProperty, setName, setProperty, setProperty, setSymbol

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BlockExp

public BlockExp()

Method Detail

setBody

public void setBody(Expression body)

setBody

public void setBody(Expression body,
                    Expression exitBody)

setRunFinallyBlocks

public void setRunFinallyBlocks(boolean value)

setLabel

public void setLabel(Declaration label)

mustCompile

protected boolean mustCompile()

Specified by:

mustCompile in class Expression

apply

public void apply(CallContext ctx)
           throws java.lang.Throwable

Description copied from class: Expression

Evaluate the expression. This is named apply rather than eval so it is compatible with the full-tail-call calling convention, and we can stash an Expression in CallContext's proc field. FIXME - are we making use of this?

Overrides:

apply in class Expression

Throws:

java.lang.Throwable

compile

public void compile(Compilation comp,
                    Target target)

Specified by:

compile in class Expression

visit

protected <R,D> R visit(ExpVisitor<R,D> visitor,
                              D d)

Overrides:

visit in class Expression

visitChildren

protected <R,D> void visitChildren(ExpVisitor<R,D> visitor,
                                         D d)

Overrides:

visitChildren in class Expression

toString

public java.lang.String toString()

Overrides:

toString in class Expression

print

public void print(gnu.kawa.io.OutPort out)

Specified by:

print in class Expression