//private int trydepth;
public void buildAS3Try(CompileEnv env, ASTool.AS3.AS3Try as3try, Builder builder)
{
//***先编译Try块
//trydepth++;
int tryid = as3try.holdTryId;
//string LBL_BEGIN_TRY = "BEGIN_TRY_" + tryid;
//string LBL_END_TRY = "END_TRY_" + tryid;
string LBL_BEGIN_FINALLY = "BEGIN_FINALLY_" + tryid;
string LBL_END_FINALLY = "END_FINALLY_" + tryid;
string LBL_CATCH = "BEGIN_CATCH_" + tryid;
//OpStep begintry = new OpStep(OpCode.flag, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
//begintry.flag = LBL_BEGIN_TRY;
//env.block.opSteps.Add(begintry);
//**包装一个block**
ASTool.AS3.AS3Block tempblock = new ASTool.AS3.AS3Block(as3try.Token);
tempblock.CodeList = as3try.TryBlock;
tempblock.label = as3try.label;
{
OpStep enter_try = new OpStep(OpCode.enter_try, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
enter_try.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
enter_try.arg1Type = RunTimeDataType.rt_int;
env.block.opSteps.Add(enter_try);
}
builder.buildStmt(env, tempblock);
{
OpStep quit_try = new OpStep(OpCode.quit_try, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
quit_try.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
quit_try.arg1Type = RunTimeDataType.rt_int;
env.block.opSteps.Add(quit_try);
}
//OpStep endtry= new OpStep(OpCode.flag, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
//endtry.flag = LBL_END_TRY;
//env.block.opSteps.Add(endtry);
//***跳转到Finally块***
{
jumpTo(env, as3try, builder, LBL_BEGIN_FINALLY);
}
OpStep startCatch = new OpStep(OpCode.flag, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
startCatch.flag = LBL_CATCH;
env.block.opSteps.Add(startCatch);
//***编译Catch块***
for (int i = 0; i < as3try.CatchList.Count; i++)
{
var c = as3try.CatchList[i];
//c.CatchVariable.Name = "0"+c.CatchVariable.Name + "_" + i;
VariableBase rtVariable = new Variable(c.CatchVariable.Name, env.block.scope.members.Count, true, env.block.id);
rtVariable.valueType = TypeReader.fromSourceCodeStr(c.CatchVariable.TypeStr, c.CatchVariable.token, builder);
env.block.scope.members.Add(rtVariable);
//builder.buildVariables(env, c.CatchVariable);
//string catchvariablename = "0" + c.CatchVariable.Name + "_" + i + "_" + tryid;
//Variable rtVariable = (Variable)MemberFinder.find(catchvariablename, env);
//rtVariable.resetName(c.CatchVariable.Name);
//rtVariable.valueType = RunTimeDataType.rt_void;
OpStep op = new OpStep(OpCode.catch_error,
new SourceToken(c.CatchVariable.token.line,
c.CatchVariable.token.ptr, c.CatchVariable.token.sourceFile));
op.reg = rtVariable;
op.regType = TypeReader.fromSourceCodeStr(c.CatchVariable.TypeStr, c.CatchVariable.token, builder);
op.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
op.arg1Type = RunTimeDataType.rt_int;
op.arg2 = null;
op.arg2Type = RunTimeDataType.unknown;
env.block.opSteps.Add(op);
{
OpStep enter_catch = new OpStep(OpCode.enter_catch, new SourceToken(c.CatchVariable.token.line, c.CatchVariable.token.ptr, c.CatchVariable.token.sourceFile));
enter_catch.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
enter_catch.arg1Type = RunTimeDataType.rt_int;
env.block.opSteps.Add(enter_catch);
}
int bstidx = env.block.opSteps.Count;
for (int j = 0; j < c.CatchBlock.Count; j++)
{
builder.buildStmt(env, c.CatchBlock[j]);
}
for (int k = bstidx; k < env.block.opSteps.Count; k++)
{
var oop = env.block.opSteps[k];
if (Equals(oop.reg, rtVariable))
{
((Variable)oop.reg).resetName("0" + rtVariable.name + "_" + i + "_" + tryid);
}
if (Equals(oop.arg1, rtVariable))
{
((Variable)oop.arg1).resetName("0" + rtVariable.name + "_" + i + "_" + tryid);
}
if (Equals(oop.arg2, rtVariable))
{
((Variable)oop.arg2).resetName("0" + rtVariable.name + "_" + i + "_" + tryid);
}
}
rtVariable.resetName("0" + rtVariable.name + "_" + i + "_" + tryid);
{
OpStep quit_catch = new OpStep(OpCode.quit_catch, new SourceToken(c.CatchVariable.token.line, c.CatchVariable.token.ptr, c.CatchVariable.token.sourceFile));
quit_catch.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
quit_catch.arg1Type = RunTimeDataType.rt_int;
env.block.opSteps.Add(quit_catch);
}
{
jumpTo(env, as3try, builder, LBL_BEGIN_FINALLY);
}
}
//FINALLY
{
OpStep finallylbl = new OpStep(OpCode.flag, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
finallylbl.flag = LBL_BEGIN_FINALLY;
env.block.opSteps.Add(finallylbl);
{
OpStep enter_finally = new OpStep(OpCode.enter_finally, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
enter_finally.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
enter_finally.arg1Type = RunTimeDataType.rt_int;
env.block.opSteps.Add(enter_finally);
}
if (as3try.FinallyBlock != null)
{
for (int i = 0; i < as3try.FinallyBlock.Count; i++)
{
builder.buildStmt(env, as3try.FinallyBlock[i]);
}
}
else
{
if (as3try.CatchList.Count == 0)
{
throw new BuildException(as3try.Token.line,
as3try.Token.ptr,
as3try.Token.sourceFile, "try块至少要有1个catch块或1个finally块.");
}
}
{
OpStep quit_finally = new OpStep(OpCode.quit_finally, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
quit_finally.arg1 = new ASBinCode.rtData.RightValue(new ASBinCode.rtData.rtInt(tryid));
quit_finally.arg1Type = RunTimeDataType.rt_int;
env.block.opSteps.Add(quit_finally);
}
OpStep endfinally = new OpStep(OpCode.flag, new SourceToken(as3try.Token.line, as3try.Token.ptr, as3try.Token.sourceFile));
endfinally.flag = LBL_END_FINALLY;
env.block.opSteps.Add(endfinally);
}
//trydepth--;
//throw new BuildException(as3try.Token.line,as3try.Token.ptr,as3try.Token.sourceFile,"try catch finally编译没实现");
}
