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Add string subscript

This commit is contained in:
Vasilii Rogin 2023-05-14 21:26:32 +03:00
parent 2dcae640c9
commit 7faccc9923
1 changed files with 15 additions and 4 deletions
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19
src/sfall_opcodes.cc
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@ -568,16 +568,27 @@ static void opScanArray(Program* program)
// get_array
static void opGetArray(Program* program)
{
// TODO: If type is string then do substr instead of array operation
auto key = programStackPopValue(program);
auto arrayId = programStackPopValue(program);
if (arrayId.isInt()) {
auto value = GetArray(arrayId.integerValue, key);
programStackPushValue(program, value);
} else if (arrayId.isString()) {
throw std::invalid_argument("String subscript is not implemented yet!");
} else if (arrayId.isString() && key.isInt()) {
auto& strVal = arrayId;
auto pos = key.asInt();
auto str = programGetString(program, strVal.opcode, strVal.integerValue);
// TODO: Is this works?
char buf[2] = { 0 };
if (pos < strlen(str)) {
buf[0] = str[pos];
programPushString(program, buf);
} else {
programPushString(program, buf);
}
}
}