static jl_value_t *copy_ast(jl_value_t *expr, jl_tuple_t *sp, int do_sp)
{
if (jl_is_symbol(expr)) {
if (!do_sp) return expr;
// pre-evaluate certain static parameters to help type inference
for(int i=0; i < jl_tuple_len(sp); i+=2) {
assert(jl_is_typevar(jl_tupleref(sp,i)));
if ((jl_sym_t*)expr == ((jl_tvar_t*)jl_tupleref(sp,i))->name) {
jl_value_t *spval = jl_tupleref(sp,i+1);
if (jl_is_long(spval))
return spval;
}
}
}
else if (jl_is_lambda_info(expr)) {
jl_lambda_info_t *li = (jl_lambda_info_t*)expr;
/*
if (sp == jl_null && li->ast &&
jl_lam_capt((jl_expr_t*)li->ast)->length == 0)
return expr;
*/
// TODO: avoid if above condition is true and decls have already
// been evaluated.
JL_GC_PUSH(&li);
li = jl_add_static_parameters(li, sp);
li->ast = jl_prepare_ast(li, li->sparams);
JL_GC_POP();
return (jl_value_t*)li;
}
else if (jl_typeis(expr,jl_array_any_type)) {
jl_array_t *a = (jl_array_t*)expr;
jl_array_t *na = jl_alloc_cell_1d(jl_array_len(a));
JL_GC_PUSH(&na);
size_t i;
for(i=0; i < jl_array_len(a); i++)
jl_cellset(na, i, copy_ast(jl_cellref(a,i), sp, do_sp));
JL_GC_POP();
return (jl_value_t*)na;
}
else if (jl_is_expr(expr)) {
jl_expr_t *e = (jl_expr_t*)expr;
jl_expr_t *ne = jl_exprn(e->head, jl_array_len(e->args));
JL_GC_PUSH(&ne);
size_t i;
if (e->head == lambda_sym) {
jl_exprarg(ne, 0) = copy_ast(jl_exprarg(e,0), sp, 0);
jl_exprarg(ne, 1) = copy_ast(jl_exprarg(e,1), sp, 0);
jl_exprarg(ne, 2) = copy_ast(jl_exprarg(e,2), sp, 1);
}
else {
for(i=0; i < jl_array_len(e->args); i++)
jl_exprarg(ne, i) = copy_ast(jl_exprarg(e,i), sp, 1);
}
JL_GC_POP();
return (jl_value_t*)ne;
}
return expr;
}
// given a new lambda_info with static parameter values, make a copy
// of the tree with declared types evaluated and static parameters passed
// on to all enclosed functions.
// this tree can then be further mutated by optimization passes.
DLLEXPORT
jl_value_t *jl_prepare_ast(jl_lambda_info_t *li, jl_tuple_t *sparams)
{
jl_tuple_t *spenv = NULL;
jl_value_t *ast = li->ast;
if (ast == NULL) return NULL;
JL_GC_PUSH(&spenv, &ast);
spenv = jl_tuple_tvars_to_symbols(sparams);
if (!jl_is_expr(ast)) {
ast = jl_uncompress_ast(li, ast);
ast = dont_copy_ast(ast, sparams, 1);
}
else {
ast = copy_ast(ast, sparams, 1);
}
jl_module_t *last_m = jl_current_module;
JL_TRY {
jl_current_module = li->module;
eval_decl_types(jl_lam_vinfo((jl_expr_t*)ast), spenv);
eval_decl_types(jl_lam_capt((jl_expr_t*)ast), spenv);
}
JL_CATCH {
jl_current_module = last_m;
jl_rethrow();
}
jl_current_module = last_m;
JL_GC_POP();
return ast;
}
errval_t set_record(struct ast_object* ast, uint64_t mode,
struct oct_query_state* sqs)
{
assert(ast != NULL);
assert(sqs != NULL);
assert(mode == 0);
for (size_t i = 0; i < MAX_RECORDS; i++) {
struct record* entry = &record_storage[i];
if (entry->name == NULL) {
continue;
}
OCT_DEBUG("found record: %s\n", entry->name);
if (strcmp(RECORD_NAME(ast), entry->name) == 0) {
assert(entry->record == NULL);
copy_ast(&entry->record, ast);
wakeup_clients(entry);
return SYS_ERR_OK;
}
}
for (size_t i = 0; i < MAX_RECORDS; i++) {
struct record* entry = &record_storage[i];
if (entry->name == NULL) {
entry->name = strdup(RECORD_NAME(ast));
copy_ast(&entry->record, ast);
assert(entry->waiting_parties == NULL);
return SYS_ERR_OK;
}
}
assert(!"No more storage space!");
return OCT_ERR_NO_RECORD;
}
// given a new lambda_info with static parameter values, make a copy
// of the tree with declared types evaluated and static parameters passed
// on to all enclosed functions.
// this tree can then be further mutated by optimization passes.
DLLEXPORT
jl_value_t *jl_prepare_ast(jl_lambda_info_t *li, jl_tuple_t *sparams)
{
jl_tuple_t *spenv = NULL;
jl_value_t *l_ast = li->ast;
if (l_ast == NULL) return NULL;
jl_value_t *ast = l_ast;
JL_GC_PUSH(&spenv, &ast);
if (jl_is_tuple(ast))
ast = jl_uncompress_ast((jl_tuple_t*)ast);
spenv = jl_tuple_tvars_to_symbols(sparams);
ast = copy_ast(ast, sparams);
eval_decl_types(jl_lam_vinfo((jl_expr_t*)ast), spenv);
eval_decl_types(jl_lam_capt((jl_expr_t*)ast), spenv);
JL_GC_POP();
return ast;
}
static jl_value_t *dont_copy_ast(jl_value_t *expr, jl_tuple_t *sp, int do_sp)
{
if (jl_is_symbol(expr) || jl_is_lambda_info(expr)) {
return copy_ast(expr, sp, do_sp);
}
else if (jl_is_expr(expr)) {
jl_expr_t *e = (jl_expr_t*)expr;
if (e->head == lambda_sym) {
jl_exprarg(e, 0) = dont_copy_ast(jl_exprarg(e,0), sp, 0);
jl_exprarg(e, 1) = dont_copy_ast(jl_exprarg(e,1), sp, 0);
jl_exprarg(e, 2) = dont_copy_ast(jl_exprarg(e,2), sp, 1);
}
else {
for(size_t i=0; i < jl_array_len(e->args); i++)
jl_exprarg(e, i) = dont_copy_ast(jl_exprarg(e,i), sp, 1);
}
return (jl_value_t*)e;
}
return expr;
}
static void copy_ast(struct ast_object** copy, struct ast_object* ast)
{
if (ast == NULL) {
return;
}
*copy = malloc(sizeof(struct ast_object));
memcpy(*copy, ast, sizeof(struct ast_object));
switch (ast->type) {
case nodeType_Object:
copy_ast(&(*copy)->u.on.name, ast->u.on.name);
copy_ast(&(*copy)->u.on.attrs, ast->u.on.attrs);
break;
case nodeType_Attribute:
copy_ast(&(*copy)->u.an.attr, ast->u.an.attr);
copy_ast(&(*copy)->u.an.next, ast->u.an.next);
break;
case nodeType_Pair:
copy_ast(&(*copy)->u.pn.left, ast->u.pn.left);
copy_ast(&(*copy)->u.pn.right, ast->u.pn.right);
break;
case nodeType_Ident:
(*copy)->u.in.str = strdup(ast->u.in.str);
break;
case nodeType_String:
(*copy)->u.sn.str = strdup(ast->u.sn.str);
break;
case nodeType_Constant:
// Nothing to copy
break;
default:
OCT_DEBUG("node is: %d\n", ast->type);
assert(!"Unsupported Node!");
break;
}
}
static jl_value_t *copy_ast(jl_value_t *expr, jl_tuple_t *sp, int do_sp)
{
if (jl_is_symbol(expr)) {
if (!do_sp) return expr;
// pre-evaluate certain static parameters to help type inference
for(int i=0; i < jl_tuple_len(sp); i+=2) {
assert(jl_is_typevar(jl_tupleref(sp,i)));
if ((jl_sym_t*)expr == ((jl_tvar_t*)jl_tupleref(sp,i))->name) {
jl_value_t *spval = jl_tupleref(sp,i+1);
if (jl_is_long(spval))
return spval;
}
}
}
else if (jl_is_lambda_info(expr)) {
jl_lambda_info_t *li = (jl_lambda_info_t*)expr;
/*
if (sp == jl_null && li->ast &&
jl_array_len(jl_lam_capt((jl_expr_t*)li->ast)) == 0)
return expr;
*/
// TODO: avoid if above condition is true and decls have already
// been evaluated.
JL_GC_PUSH1(&li);
li = jl_add_static_parameters(li, sp);
// inner lambda does not need the "def" link. it leads to excess object
// retention, for example pointing to the original uncompressed AST
// of a top-level thunk that gets type inferred.
li->def = li;
li->ast = jl_prepare_ast(li, li->sparams);
JL_GC_POP();
return (jl_value_t*)li;
}
else if (jl_typeis(expr,jl_array_any_type)) {
jl_array_t *a = (jl_array_t*)expr;
jl_array_t *na = jl_alloc_cell_1d(jl_array_len(a));
JL_GC_PUSH1(&na);
size_t i;
for(i=0; i < jl_array_len(a); i++)
jl_cellset(na, i, copy_ast(jl_cellref(a,i), sp, do_sp));
JL_GC_POP();
return (jl_value_t*)na;
}
else if (jl_is_expr(expr)) {
jl_expr_t *e = (jl_expr_t*)expr;
jl_expr_t *ne = jl_exprn(e->head, jl_array_len(e->args));
JL_GC_PUSH1(&ne);
if (e->head == lambda_sym) {
jl_exprarg(ne, 0) = copy_ast(jl_exprarg(e,0), sp, 0);
jl_exprarg(ne, 1) = copy_ast(jl_exprarg(e,1), sp, 0);
jl_exprarg(ne, 2) = copy_ast(jl_exprarg(e,2), sp, 1);
}
else {
for(size_t i=0; i < jl_array_len(e->args); i++)
jl_exprarg(ne, i) = copy_ast(jl_exprarg(e,i), sp, 1);
}
JL_GC_POP();
return (jl_value_t*)ne;
}
return expr;
}