本文整理汇总了Java中scouter.javassist.bytecode.Bytecode.addExceptionHandler方法的典型用法代码示例。如果您正苦于以下问题：Java Bytecode.addExceptionHandler方法的具体用法？Java Bytecode.addExceptionHandler怎么用？Java Bytecode.addExceptionHandler使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类scouter.javassist.bytecode.Bytecode的用法示例。
在下文中一共展示了Bytecode.addExceptionHandler方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: atSyncStmnt
import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
private void atSyncStmnt(Stmnt st) throws CompileError {
int nbreaks = getListSize(breakList);
int ncontinues = getListSize(continueList);
compileExpr(st.head());
if (exprType != CLASS && arrayDim == 0)
throw new CompileError("bad type expr for synchronized block");
Bytecode bc = bytecode;
final int var = bc.getMaxLocals();
bc.incMaxLocals(1);
bc.addOpcode(DUP);
bc.addAstore(var);
bc.addOpcode(MONITORENTER);
ReturnHook rh = new ReturnHook(this) {
protected boolean doit(Bytecode b, int opcode) {
b.addAload(var);
b.addOpcode(MONITOREXIT);
return false;
}
};
int pc = bc.currentPc();
Stmnt body = (Stmnt)st.tail();
if (body != null)
body.accept(this);
int pc2 = bc.currentPc();
int pc3 = 0;
if (!hasReturned) {
rh.doit(bc, 0); // the 2nd arg is ignored.
bc.addOpcode(Opcode.GOTO);
pc3 = bc.currentPc();
bc.addIndex(0);
}
if (pc < pc2) { // if the body is not empty
int pc4 = bc.currentPc();
rh.doit(bc, 0); // the 2nd arg is ignored.
bc.addOpcode(ATHROW);
bc.addExceptionHandler(pc, pc2, pc4, 0);
}
if (!hasReturned)
bc.write16bit(pc3, bc.currentPc() - pc3 + 1);
rh.remove(this);
if (getListSize(breakList) != nbreaks
|| getListSize(continueList) != ncontinues)
throw new CompileError(
"sorry, cannot break/continue in synchronized block");
}
示例2: atTryStmnt
import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
protected void atTryStmnt(Stmnt st) throws CompileError {
Bytecode bc = bytecode;
Stmnt body = (Stmnt)st.getLeft();
if (body == null)
return;
ASTList catchList = (ASTList)st.getRight().getLeft();
Stmnt finallyBlock = (Stmnt)st.getRight().getRight().getLeft();
ArrayList gotoList = new ArrayList();
JsrHook jsrHook = null;
if (finallyBlock != null)
jsrHook = new JsrHook(this);
int start = bc.currentPc();
body.accept(this);
int end = bc.currentPc();
if (start == end)
throw new CompileError("empty try block");
boolean tryNotReturn = !hasReturned;
if (tryNotReturn) {
bc.addOpcode(Opcode.GOTO);
gotoList.add(new Integer(bc.currentPc()));
bc.addIndex(0); // correct later
}
int var = getMaxLocals();
incMaxLocals(1);
while (catchList != null) {
// catch clause
Pair p = (Pair)catchList.head();
catchList = catchList.tail();
Declarator decl = (Declarator)p.getLeft();
Stmnt block = (Stmnt)p.getRight();
decl.setLocalVar(var);
CtClass type = resolver.lookupClassByJvmName(decl.getClassName());
decl.setClassName(MemberResolver.javaToJvmName(type.getName()));
bc.addExceptionHandler(start, end, bc.currentPc(), type);
bc.growStack(1);
bc.addAstore(var);
hasReturned = false;
if (block != null)
block.accept(this);
if (!hasReturned) {
bc.addOpcode(Opcode.GOTO);
gotoList.add(new Integer(bc.currentPc()));
bc.addIndex(0); // correct later
tryNotReturn = true;
}
}
if (finallyBlock != null) {
jsrHook.remove(this);
// catch (any) clause
int pcAnyCatch = bc.currentPc();
bc.addExceptionHandler(start, pcAnyCatch, pcAnyCatch, 0);
bc.growStack(1);
bc.addAstore(var);
hasReturned = false;
finallyBlock.accept(this);
if (!hasReturned) {
bc.addAload(var);
bc.addOpcode(ATHROW);
}
addFinally(jsrHook.jsrList, finallyBlock);
}
int pcEnd = bc.currentPc();
patchGoto(gotoList, pcEnd);
hasReturned = !tryNotReturn;
if (finallyBlock != null) {
if (tryNotReturn)
finallyBlock.accept(this);
}
}