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update multiple assignment in script engine

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This commit is contained in:
xmaple555 2024-08-23 04:10:11 +08:00
parent 0b404c61ae
commit 8edd118a40
4 changed files with 763 additions and 611 deletions
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95
hyperdbg/script-engine/code/script-engine.c
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@ -1016,7 +1016,7 @@ CodeGen(PTOKEN_LIST MatchedStack, PSYMBOL_BUFFER CodeBuffer, PTOKEN Operator, PS
if (!strcmp(Operator->Value, "@END_OF_CALLING_USER_DEFINED_FUNCTION_WITH_RETURNING_VALUE"))
{
if (FunctionToken->Type == (TOKEN_TYPE)VARIABLE_TYPE_VOID)
if ((VARIABLE_TYPE *)Node->VariableType == VARIABLE_TYPE_VOID)
{
*Error = SCRIPT_ENGINE_ERROR_VOID_FUNCTION_RETURNING_VALUE;
break;
@ -1052,6 +1052,99 @@ CodeGen(PTOKEN_LIST MatchedStack, PSYMBOL_BUFFER CodeBuffer, PTOKEN Operator, PS
RemoveToken(&FunctionToken);
}
else if (!strcmp(Operator->Value, "@MULTIPLE_ASSIGNMENT"))
{
PSYMBOL Symbol = NewSymbol();
Symbol->Type = SYMBOL_SEMANTIC_RULE_TYPE;
Symbol->Value = FUNC_MOV;
Op0 = Pop(MatchedStack);
Op0Symbol = ToSymbol(Op0, Error);
for (int i = MatchedStack->Pointer; i > 0; i--)
{
Op1 = Top(MatchedStack);
if (Op1->Type == TEMP || Op1->Type == HEX || Op1->Type == OCTAL || Op1->Type == BINARY)
{
*Error = SCRIPT_ENGINE_ERROR_SYNTAX;
Pop(MatchedStack);
break;
}
else if (Op1->Type == GLOBAL_UNRESOLVED_ID)
{
PushSymbol(CodeBuffer, Symbol);
PushSymbol(CodeBuffer, Op0Symbol);
Op1Symbol = NewSymbol();
free((void *)Op1Symbol->Value);
Op1Symbol->Value = NewGlobalIdentifier(Op1);
SetType(&Op1Symbol->Type, SYMBOL_GLOBAL_ID_TYPE);
Pop(MatchedStack);
PushSymbol(CodeBuffer, Op1Symbol);
}
else if (Op1->Type == LOCAL_UNRESOLVED_ID)
{
PushSymbol(CodeBuffer, Symbol);
PushSymbol(CodeBuffer, Op0Symbol);
Op1Symbol = NewSymbol();
free((void *)Op1Symbol->Value);
Op1Symbol->Value = NewLocalIdentifier(Op1);
SetType(&Op1Symbol->Type, SYMBOL_LOCAL_ID_TYPE);
Pop(MatchedStack);
PushSymbol(CodeBuffer, Op1Symbol);
RemoveSymbol(&Op1Symbol);
}
else if (Op1->Type == LOCAL_ID || Op1->Type == GLOBAL_ID || Op1->Type == FUNCTION_PARAMETER_ID || Op1->Type == REGISTER)
{
PushSymbol(CodeBuffer, Symbol);
PushSymbol(CodeBuffer, Op0Symbol);
Op1Symbol = ToSymbol(Op1, Error);
PushSymbol(CodeBuffer, Op1Symbol);
Pop(MatchedStack);
RemoveSymbol(&Op1Symbol);
}
else
{
break;
}
}
RemoveSymbol(&Symbol);
Op1 = 0;
if (*Error != SCRIPT_ENGINE_ERROR_FREE)
{
FreeTemp(Op0);
break;
}
if (MatchedStack->Pointer > 0)
{
if (Top(MatchedStack)->Type == SCRIPT_VARIABLE_TYPE)
{
VariableType = HandleType(MatchedStack);
if (VariableType == VARIABLE_TYPE_UNKNOWN)
{
*Error = SCRIPT_ENGINE_ERROR_UNDEFINED_VARIABLE_TYPE;
break;
}
// Op1Symbol->VariableType = (unsigned long long)VariableType;
}
}
//
// Free the operand if it is a temp value
//
FreeTemp(Op0);
if (*Error != SCRIPT_ENGINE_ERROR_FREE)
{
break;
}
}
else if (!strcmp(Operator->Value, "@MOV"))
{
PushSymbol(CodeBuffer, OperatorSymbol);