static void jitAndPrintExpr(ExprPtr expr) {
//expr -> println(expr);
NameRefPtr println = new NameRef(Identifier::get("println"));
ExprPtr call = new Call(println.ptr(), new ExprList(expr));
ExprStatementPtr callStmt = new ExprStatement(call);
jitStatements(vector<StatementPtr>(1, callStmt.ptr()));
}
StatementPtr desugarSwitchStatement(SwitchPtr x, CompilerState* cst) {
BlockPtr block = new Block();
block->location = x->location;
block->statements.insert(block->statements.end(),
x->exprStatements.begin(), x->exprStatements.end());
// %thing is the value being switched on
IdentifierPtr thing = Identifier::get("%case", x->expr->location);
NameRefPtr thingRef = new NameRef(thing);
thingRef->location = x->expr->location;
// initialize %case
{
BindingPtr b = new Binding(FORWARD, identV(thing), new ExprList(x->expr));
b->location = x->expr->location;
block->statements.push_back(b.ptr());
}
ExprPtr caseCallable = operator_expr_caseP(cst);
StatementPtr root;
StatementPtr *nextPtr = &root;
// dispatch logic
for (size_t i = 0; i < x->caseBlocks.size(); ++i) {
CaseBlockPtr caseBlock = x->caseBlocks[i];
ExprListPtr caseArgs = new ExprList(thingRef.ptr());
ExprPtr caseCompareArgs = new Paren(caseBlock->caseLabels);
caseCompareArgs->location = caseBlock->location;
caseArgs->add(caseCompareArgs);
ExprPtr condition = new Call(caseCallable, caseArgs);
condition->location = caseBlock->location;
IfPtr ifStmt = new If(condition, caseBlock->body);
ifStmt->location = caseBlock->location;
*nextPtr = ifStmt.ptr();
nextPtr = &(ifStmt->elsePart);
}
if (x->defaultCase.ptr())
*nextPtr = x->defaultCase;
else
*nextPtr = NULL;
block->statements.push_back(root);
return block.ptr();
}
void convertFreeVars(ExprPtr &x, EnvPtr env, LambdaContext &ctx)
{
switch (x->exprKind) {
case BOOL_LITERAL :
case INT_LITERAL :
case FLOAT_LITERAL :
case CHAR_LITERAL :
case STRING_LITERAL :
case IDENTIFIER_LITERAL :
break;
case NAME_REF : {
NameRef *y = (NameRef *)x.ptr();
bool isNonLocal = false;
bool isGlobal = false;
ObjectPtr z = lookupEnvEx(env, y->name, ctx.nonLocalEnv,
isNonLocal, isGlobal);
if (isNonLocal && !isGlobal) {
if ((z->objKind == PVALUE) || (z->objKind == CVALUE)) {
TypePtr t = typeOfValue(z);
if (isStaticOrTupleOfStatics(t)) {
ExprListPtr args = new ExprList();
args->add(new ObjectExpr(t.ptr()));
CallPtr call = new Call(operator_expr_typeToRValue(), args);
call->location = y->location;
x = call.ptr();
}
else {
addFreeVar(ctx, y->name->str);
IdentifierPtr a = new Identifier(ctx.closureDataName);
a->location = y->location;
NameRefPtr b = new NameRef(a);
b->location = y->location;
FieldRefPtr c = new FieldRef(b.ptr(), y->name);
c->location = y->location;
if (ctx.captureByRef) {
vector<int> ops;
ops.push_back(DEREFERENCE);
ExprPtr d = new VariadicOp(ops, new ExprList(c.ptr()));
d->location = y->location;
x = d.ptr();
}
else {
x = c.ptr();
}
}
}
else if ((z->objKind == MULTI_PVALUE) || (z->objKind == MULTI_CVALUE)) {
vector<TypePtr> types = typesOfValues(z);
bool allStatic = true;
for (unsigned i = 0; i < types.size(); ++i) {
if (!isStaticOrTupleOfStatics(types[i])) {
allStatic = false;
break;
}
}
if (allStatic) {
ExprListPtr args = new ExprList();
for (unsigned i = 0; i < types.size(); ++i)
args->add(new ObjectExpr(types[i].ptr()));
CallPtr call = new Call(operator_expr_typesToRValues(), args);
call->location = y->location;
x = call.ptr();
}
else {
addFreeVar(ctx, y->name->str);
IdentifierPtr a = new Identifier(ctx.closureDataName);
a->location = y->location;
NameRefPtr b = new NameRef(a);
b->location = y->location;
FieldRefPtr c = new FieldRef(b.ptr(), y->name);
c->location = y->location;
if (ctx.captureByRef) {
ExprPtr f =
operator_expr_unpackMultiValuedFreeVarAndDereference();
CallPtr d = new Call(f, new ExprList());
d->parenArgs->add(c.ptr());
x = d.ptr();
}
else {
ExprPtr f = operator_expr_unpackMultiValuedFreeVar();
CallPtr d = new Call(f, new ExprList());
d->parenArgs->add(c.ptr());
x = d.ptr();
}
}
}
}
break;
}
case TUPLE : {
Tuple *y = (Tuple *)x.ptr();
convertFreeVars(y->args, env, ctx);
break;
}
case PAREN : {
Paren *y = (Paren *)x.ptr();
convertFreeVars(y->args, env, ctx);
break;
}
case INDEXING : {
Indexing *y = (Indexing *)x.ptr();
convertFreeVars(y->expr, env, ctx);
convertFreeVars(y->args, env, ctx);
break;
}
case CALL : {
Call *y = (Call *)x.ptr();
convertFreeVars(y->expr, env, ctx);
convertFreeVars(y->parenArgs, env, ctx);
convertFreeVars(y->lambdaArgs, env, ctx);
break;
}
case FIELD_REF : {
FieldRef *y = (FieldRef *)x.ptr();
convertFreeVars(y->expr, env, ctx);
break;
}
case STATIC_INDEXING : {
StaticIndexing *y = (StaticIndexing *)x.ptr();
convertFreeVars(y->expr, env, ctx);
break;
}
case VARIADIC_OP : {
VariadicOp *y = (VariadicOp *)x.ptr();
convertFreeVars(y->exprs, env, ctx);
break;
}
case AND : {
And *y = (And *)x.ptr();
convertFreeVars(y->expr1, env, ctx);
convertFreeVars(y->expr2, env, ctx);
break;
}
case OR : {
Or *y = (Or *)x.ptr();
convertFreeVars(y->expr1, env, ctx);
convertFreeVars(y->expr2, env, ctx);
break;
}
case LAMBDA : {
Lambda *y = (Lambda *)x.ptr();
EnvPtr env2 = new Env(env);
for (unsigned i = 0; i < y->formalArgs.size(); ++i)
addLocal(env2, y->formalArgs[i]->name, y->formalArgs[i]->name.ptr());
if (y->formalVarArg.ptr())
addLocal(env2, y->formalVarArg->name, y->formalVarArg->name.ptr());
convertFreeVars(y->body, env2, ctx);
break;
}
case UNPACK : {
Unpack *y = (Unpack *)x.ptr();
convertFreeVars(y->expr, env, ctx);
break;
}
case STATIC_EXPR : {
StaticExpr *y = (StaticExpr *)x.ptr();
convertFreeVars(y->expr, env, ctx);
break;
}
case DISPATCH_EXPR : {
DispatchExpr *y = (DispatchExpr *)x.ptr();
convertFreeVars(y->expr, env, ctx);
break;
}
case EVAL_EXPR : {
EvalExpr *eval = (EvalExpr *)x.ptr();
convertFreeVars(eval->args, env, ctx);
break;
}
case FOREIGN_EXPR :
case OBJECT_EXPR :
case FILE_EXPR :
case LINE_EXPR :
case COLUMN_EXPR :
case ARG_EXPR :
break;
}
}
static void initializeLambdaWithFreeVars(LambdaPtr x, EnvPtr env,
string const &closureDataName, string const &lname)
{
RecordPtr r = new Record(PRIVATE);
r->location = x->location;
r->name = new Identifier(lname);
r->env = env;
x->lambdaRecord = r;
r->lambda = x;
vector<RecordFieldPtr> fields;
CallPtr converted = new Call(NULL, new ExprList());
for (unsigned i = 0; i < x->freeVars.size(); ++i) {
IdentifierPtr ident = new Identifier(x->freeVars[i]);
NameRefPtr nameRef = new NameRef(ident);
TypePtr type;
ObjectPtr obj = safeLookupEnv(env, ident);
switch (obj->objKind) {
case PVALUE :
case CVALUE : {
type = typeOfValue(obj);
if (x->captureByRef) {
type = pointerType(type);
vector<int> ops;
ops.push_back(ADDRESS_OF);
ExprPtr addr = new VariadicOp(ops, new ExprList(nameRef.ptr()));
converted->parenArgs->add(addr);
}
else {
converted->parenArgs->add(nameRef.ptr());
}
break;
}
case MULTI_PVALUE :
case MULTI_CVALUE : {
vector<TypePtr> types = typesOfValues(obj);
vector<TypePtr> elementTypes;
for (unsigned j = 0; j < types.size(); ++j) {
TypePtr t = types[j];
if (x->captureByRef)
t = pointerType(t);
elementTypes.push_back(t);
}
type = tupleType(elementTypes);
if (x->captureByRef) {
ExprPtr e = operator_expr_packMultiValuedFreeVarByRef();
CallPtr call = new Call(e, new ExprList());
call->parenArgs->add(new Unpack(nameRef.ptr()));
converted->parenArgs->add(call.ptr());
}
else {
ExprPtr e = operator_expr_packMultiValuedFreeVar();
CallPtr call = new Call(e, new ExprList());
call->parenArgs->add(new Unpack(nameRef.ptr()));
converted->parenArgs->add(call.ptr());
}
break;
}
default :
assert(false);
}
ExprPtr fieldType = new ObjectExpr(type.ptr());
RecordFieldPtr field = new RecordField(ident, fieldType);
fields.push_back(field);
}
r->body = new RecordBody(fields);
TypePtr t = recordType(r, vector<ObjectPtr>());
x->lambdaType = t;
ExprPtr typeExpr = new ObjectExpr(t.ptr());
converted->expr = typeExpr;
x->converted = converted.ptr();
CodePtr code = new Code();
code->location = x->location;
IdentifierPtr closureDataIdent = new Identifier(closureDataName);
FormalArgPtr closureDataArg = new FormalArg(closureDataIdent, typeExpr);
code->formalArgs.push_back(closureDataArg.ptr());
for (unsigned i = 0; i < x->formalArgs.size(); ++i) {
code->formalArgs.push_back(x->formalArgs[i]);
}
if (x->formalVarArg.ptr()) {
code->formalVarArg = x->formalVarArg;
}
code->body = x->body;
OverloadPtr overload = new Overload(
operator_expr_call(), code, false, false
);
overload->env = env;
overload->location = x->location;
ObjectPtr obj = operator_call();
if (obj->objKind != PROCEDURE)
error("'call' operator not found!");
Procedure *callObj = (Procedure *)obj.ptr();
callObj->overloads.insert(callObj->overloads.begin(), overload);
}