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Fix poping uninitialized pointer 

Closes #113
This commit is contained in:
Alexander Batalov 2022-08-06 12:46:05 +03:00
parent 5170948588
commit 17382d7c7e
1 changed files with 8 additions and 0 deletions
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8
src/interpreter.cc
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@ -3033,6 +3033,14 @@ char* programStackPopString(Program* program)
void* programStackPopPointer(Program* program) void* programStackPopPointer(Program* program)
{ {
ProgramValue programValue = programStackPopValue(program); ProgramValue programValue = programStackPopValue(program);
// There are certain places in the scripted code where they refer to
// uninitialized exported variables designed to hold objects (pointers).
// If this is one theses places simply return NULL.
if (programValue.opcode == VALUE_TYPE_INT && programValue.integerValue == 0) {
return NULL;
}
if (programValue.opcode != VALUE_TYPE_PTR) { if (programValue.opcode != VALUE_TYPE_PTR) {
programFatalError("pointer expected, got %x", programValue.opcode); programFatalError("pointer expected, got %x", programValue.opcode);
} }