}
-const Interpreter::ParsedDefinition &Interpreter::GetDefinition(const string &identifier) const {
- return parsedDefinitions.at(identifier);
+const Interpreter::ParsedDefinition &Interpreter::GetDefinition(const string &identifier) {
+ std::map<string, ParsedDefinition>::const_iterator i(parsedDefinitions.find(identifier));
+ if (i != parsedDefinitions.end()) {
+ return i->second;
+ } else if (source.IsDefined(identifier)) {
+ ReadDefinition(source.GetDefinition(identifier));
+ return parsedDefinitions.at(identifier);
+ } else {
+ throw Error("access to undefined object " + identifier);
+ }
}
|| dfn.GetLiteral()->GetType() == Literal::STRING)
? dfn.GetLiteral()->GetString().size() : td.Size());
char *object(alloc.Alloc(size));
+ values[typeId].push_back(object);
+ parsedDefinitions.insert(make_pair(dfn.Identifier(), ParsedDefinition(&dfn, typeId, id)));
if (dfn.GetLiteral()->GetType() == Literal::OBJECT) {
ReadObject(typeId, id, object, *dfn.GetLiteral()->GetProperties());
} else {
ReadLiteral(typeId, id, object, *dfn.GetLiteral());
}
- values[typeId].push_back(object);
- parsedDefinitions.insert(make_pair(dfn.Identifier(), ParsedDefinition(&dfn, typeId, id)));
}
void Interpreter::ReadLiteral(int typeId, int id, char *object, const Literal &literal) {
case Literal::SCRIPT:
{
typeId = TypeDescription::GetTypeId("Script");
+ char *script(ReadScript(v.GetLiteral().GetScript()));
id = values[typeId].size();
- values[typeId].push_back(ReadScript(v.GetLiteral().GetScript()));
+ values[typeId].push_back(script);
}
break;
case Literal::STRING:
char *object(alloc.Alloc(td.Size()));
td.Construct(object);
values[typeId].push_back(object);
- ReadObject(typeId, id, object, *dfn.GetProperties());
parsedDefinitions.insert(make_pair(dfn.Identifier(), ParsedDefinition(&dfn, typeId, id)));
+ ReadObject(typeId, id, object, *dfn.GetProperties());
}
void Interpreter::ReadScript(const std::vector<ScriptToken *> &s, Script *script) {
+ std::map<string, int> labels;
int size(0);
for (vector<ScriptToken *>::const_iterator i(s.begin()), end(s.end()); i != end; ++i) {
- if ((*i)->GetType() != ScriptToken::COMMAND) {
+ if ((*i)->GetType() == ScriptToken::LABEL) {
+ if (labels.count((*i)->Label())) {
+ throw Error("duplicate label " + (*i)->Label());
+ } else {
+ labels[(*i)->Label()] = size;
+ }
+ } else if ((*i)->GetType() != ScriptToken::COMMAND) {
throw Error("unexpected script token");
}
++size;
if (i == end) {
throw Error("unexpected script end after rand");
}
+ } else if (cmd == "cmp") {
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jmp") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jeq") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jne") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jl") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jle") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jg") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
+ } else if (cmd == "jge") {
+ size += sizeof(int);
+ ++i;
+ if (i == end) {
+ throw Error("unexpected script end after cmp");
+ }
} else if (cmd == "sysc") {
} else {
unsigned char *text(reinterpret_cast<unsigned char *>(alloc.Alloc(size)));
int cursor(0);
for (vector<ScriptToken *>::const_iterator i(s.begin()), end(s.end()); i != end; ++i) {
+ if ((*i)->GetType() == ScriptToken::LABEL) {
+ continue;
+ }
if ((*i)->GetType() != ScriptToken::COMMAND) {
throw Error("unexpected script token");
}
} else {
throw Error("unexpected register " + reg);
}
+ } else if (cmd == "cmp") {
+ ++i;
+ const string ®((*i)->RegisterName());
+ ++i;
+ if (reg == "i0") {
+ if ((*i)->GetType() == ScriptToken::REGISTER && (*i)->RegisterName() == "i1") {
+ text[cursor] = Script::CODE_CMP_I0_I1;
+ ++cursor;
+ } else {
+ text[cursor] = Script::CODE_CMP_I0;
+ ++cursor;
+ ReadScriptInteger(**i, text + cursor);
+ cursor += sizeof(int);
+ }
+ } else if (reg == "i1") {
+ text[cursor] = Script::CODE_CMP_I1;
+ ++cursor;
+ ReadScriptInteger(**i, text + cursor);
+ cursor += sizeof(int);
+ } else {
+ throw Error("cannot use " + reg + " as lhs for comparison");
+ }
+ } else if (cmd == "jmp") {
+ text[cursor] = Script::CODE_JUMP;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
+ } else if (cmd == "jeq") {
+ text[cursor] = Script::CODE_JUMP_EQUAL;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
+ } else if (cmd == "jne") {
+ text[cursor] = Script::CODE_JUMP_NOT_EQUAL;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
+ } else if (cmd == "jl") {
+ text[cursor] = Script::CODE_JUMP_LESS;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
+ } else if (cmd == "jle") {
+ text[cursor] = Script::CODE_JUMP_LESS_EQUAL;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
+ } else if (cmd == "jg") {
+ text[cursor] = Script::CODE_JUMP_GREATER;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
+ } else if (cmd == "jge") {
+ text[cursor] = Script::CODE_JUMP_GREATER_EQUAL;
+ ++cursor;
+ ++i;
+ if (!labels.count((*i)->Identifier())) {
+ throw Error("use of undefined label " + (*i)->Identifier());
+ }
+ *reinterpret_cast<int *>(text + cursor) = labels[(*i)->Identifier()];
+ cursor += sizeof(int);
} else if (cmd == "sysc") {
text[cursor] = Script::CODE_SYSCALL;
++cursor;
if (t.GetType() != ScriptToken::IDENTIFIER) {
throw Error("expected identifier for address");
}
- if (source.IsDefined(t.GetIdentifier())) {
- const ParsedDefinition &def(GetDefinition(t.GetIdentifier()));
- void *addr(GetObject(def.type, t.GetIdentifier()));
+ if (source.IsDefined(t.Identifier())) {
+ const ParsedDefinition &def(GetDefinition(t.Identifier()));
+ void *addr(GetObject(def.type, t.Identifier()));
*reinterpret_cast<void **>(dest) = addr;
} else {
throw Error("postponing values in scripts not implemented");
void Interpreter::ReadScriptInteger(const ScriptToken &t, unsigned char *dest) {
if (t.GetType() == ScriptToken::IDENTIFIER) {
- if (source.IsDefined(t.GetIdentifier())) {
- void *num(GetObject(TypeDescription::GetTypeId("Number"), t.GetIdentifier()));
+ if (source.IsDefined(t.Identifier())) {
+ void *num(GetObject(TypeDescription::GetTypeId("Number"), t.Identifier()));
*reinterpret_cast<int *>(dest) = *reinterpret_cast<int *>(num);
} else {
throw Error("postponing values in scripts not implemented");
void Interpreter::ReadScriptVector(const ScriptToken &t, unsigned char *dest) {
if (t.GetType() == ScriptToken::IDENTIFIER) {
- if (source.IsDefined(t.GetIdentifier())) {
- void *vec(GetObject(TypeDescription::GetTypeId("Vector"), t.GetIdentifier()));
+ if (source.IsDefined(t.Identifier())) {
+ void *vec(GetObject(TypeDescription::GetTypeId("Vector"), t.Identifier()));
*reinterpret_cast<Vector<int> *>(dest) = *reinterpret_cast<Vector<int> *>(vec);
} else {
throw Error("postponing values in scripts not implemented");