private static void catchBody(
BytecodeContext bc,
GeneratorAdapter adapter,
Catch ct,
int pe,
int lRef,
boolean caugth,
boolean store)
throws BytecodeException {
// pc.setCatch(pe,true);
adapter.loadArg(0);
adapter.loadLocal(pe);
adapter.push(caugth);
adapter.push(store);
adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.SET_CATCH3);
// ref=
ct.name.writeOut(bc, Expression.MODE_REF);
adapter.storeLocal(lRef);
adapter.loadLocal(lRef);
adapter.loadArg(0);
adapter.loadLocal(pe); // (...,pe.getCatchBlock(pc))
adapter.loadArg(0);
adapter.invokeVirtual(Types.PAGE_EXCEPTION, GET_CATCH_BLOCK);
adapter.invokeInterface(Types.REFERENCE, SET);
adapter.pop();
ct.body.writeOut(bc);
}
/**
* @see
* railo.transformer.bytecode.statement.StatementBase#_writeOut(org.objectweb.asm.commons.GeneratorAdapter)
*/
public void _writeOut(BytecodeContext bc) throws BytecodeException {
GeneratorAdapter adapter = bc.getAdapter();
adapter.visitLabel(begin);
// Reference ref=null;
final int lRef = adapter.newLocal(Types.REFERENCE);
adapter.visitInsn(Opcodes.ACONST_NULL);
adapter.storeLocal(lRef);
// has no try body, if there is no try body, no catches are executed, only finally
if (!tryBody.hasStatements()) {
if (finallyBody != null) finallyBody.writeOut(bc);
return;
}
TryCatchFinallyVisitor tcfv =
new TryCatchFinallyVisitor(
new OnFinally() {
public void writeOut(BytecodeContext bc) throws BytecodeException {
_writeOutFinally(bc, lRef);
}
},
getFlowControlFinal());
// try
tcfv.visitTryBegin(bc);
tryBody.writeOut(bc);
int lThrow = tcfv.visitTryEndCatchBeging(bc);
_writeOutCatch(bc, lRef, lThrow);
tcfv.visitCatchEnd(bc);
}
private void _writeOutCatch(BytecodeContext bc, int lRef, int lThrow) throws BytecodeException {
GeneratorAdapter adapter = bc.getAdapter();
int pe = adapter.newLocal(Types.PAGE_EXCEPTION);
// instance of Abort
Label abortEnd = new Label();
adapter.loadLocal(lThrow);
adapter.invokeStatic(Types.ABORT, TryCatchFinally.IS_ABORT);
// adapter.instanceOf(Types.ABORT);
adapter.ifZCmp(Opcodes.IFEQ, abortEnd);
adapter.loadLocal(lThrow);
adapter.throwException();
adapter.visitLabel(abortEnd);
// PageExceptionImpl old=pc.getCatch();
int old = adapter.newLocal(Types.PAGE_EXCEPTION);
adapter.loadArg(0);
adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.GET_CATCH);
adapter.storeLocal(old);
// cast to PageException Caster.toPagException(t);
adapter.loadLocal(lThrow);
adapter.invokeStatic(Types.CASTER, TO_PAGE_EXCEPTION);
// PageException pe=...
adapter.storeLocal(pe);
// catch loop
Label endAllIf = new Label();
Iterator<Catch> it = catches.iterator();
Catch ctElse = null;
while (it.hasNext()) {
Catch ct = it.next();
// store any for else
if (ct.type != null
&& ct.type instanceof LitString
&& ((LitString) ct.type).getString().equalsIgnoreCase("any")) {
ctElse = ct;
continue;
}
ExpressionUtil.visitLine(bc, ct.line);
// pe.typeEqual(type)
if (ct.type == null) {
LitBoolean.TRUE.writeOut(bc, Expression.MODE_VALUE);
} else {
adapter.loadLocal(pe);
ct.type.writeOut(bc, Expression.MODE_REF);
adapter.invokeVirtual(Types.PAGE_EXCEPTION, TYPE_EQUAL);
}
Label endIf = new Label();
adapter.ifZCmp(Opcodes.IFEQ, endIf);
catchBody(bc, adapter, ct, pe, lRef, true, true);
adapter.visitJumpInsn(Opcodes.GOTO, endAllIf);
adapter.visitLabel(endIf);
}
if (ctElse != null) {
catchBody(bc, adapter, ctElse, pe, lRef, true, true);
} else {
// pc.setCatch(pe,true);
adapter.loadArg(0);
adapter.loadLocal(pe);
adapter.push(false);
adapter.push(false);
adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.SET_CATCH3);
adapter.loadLocal(pe);
adapter.throwException();
}
adapter.visitLabel(endAllIf);
// PageExceptionImpl old=pc.setCatch(old);
adapter.loadArg(0);
adapter.loadLocal(old);
adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.SET_CATCH_PE);
}