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#include "../ast.h"
#include "../compile.h"
#include "../environment.h"
#include "../stdlib/datatypes.h"
#include "../stdlib/text.h"
#include "../typecheck.h"
#include "../types.h"
#include "functions.h"
#include "optionals.h"
#include "pointers.h"
#include "promotion.h"
static ast_t *add_to_set_comprehension(ast_t *item, ast_t *subject) {
return WrapAST(item, MethodCall, .name = "add", .self = subject, .args = new (arg_ast_t, .value = item));
}
Text_t compile_typed_set(env_t *env, ast_t *ast, type_t *set_type) {
DeclareMatch(set, ast, Set);
if (!set->items) return Text("((Table_t){})");
type_t *item_type = Match(set_type, SetType)->item_type;
int64_t n = 0;
for (ast_list_t *item = set->items; item; item = item->next) {
++n;
if (item->ast->tag == Comprehension) goto set_comprehension;
}
{ // No comprehension:
Text_t code = Texts("Set(", compile_type(item_type), ", ", compile_type_info(item_type), ", ", String(n));
env_t *scope = item_type->tag == EnumType ? with_enum_scope(env, item_type) : env;
for (ast_list_t *item = set->items; item; item = item->next) {
code = Texts(code, ", ", compile_to_type(scope, item->ast, item_type));
}
return Texts(code, ")");
}
set_comprehension: {
static int64_t comp_num = 1;
env_t *scope = item_type->tag == EnumType ? with_enum_scope(env, item_type) : fresh_scope(env);
const char *comprehension_name = String("set$", comp_num++);
ast_t *comprehension_var =
LiteralCode(Texts("&", comprehension_name), .type = Type(PointerType, .pointed = set_type, .is_stack = true));
Text_t code = Texts("({ Table_t ", comprehension_name, " = {};");
Closure_t comp_action = {.fn = add_to_set_comprehension, .userdata = comprehension_var};
scope->comprehension_action = &comp_action;
for (ast_list_t *item = set->items; item; item = item->next) {
if (item->ast->tag == Comprehension) code = Texts(code, "\n", compile_statement(scope, item->ast));
else code = Texts(code, compile_statement(env, add_to_set_comprehension(item->ast, comprehension_var)));
}
code = Texts(code, " ", comprehension_name, "; })");
return code;
}
}
public
Text_t compile_set_method_call(env_t *env, ast_t *ast) {
DeclareMatch(call, ast, MethodCall);
type_t *self_t = get_type(env, call->self);
int64_t pointer_depth = 0;
type_t *self_value_t = self_t;
for (; self_value_t->tag == PointerType; self_value_t = Match(self_value_t, PointerType)->pointed)
pointer_depth += 1;
Text_t self = compile(env, call->self);
#define EXPECT_POINTER() \
do { \
if (pointer_depth < 1) code_err(call->self, "I expected a set pointer here, not a set value"); \
else if (pointer_depth > 1) code_err(call->self, "I expected a set pointer here, not a nested set pointer"); \
} while (0)
DeclareMatch(set, self_value_t, SetType);
if (streq(call->name, "has")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "key", .type = set->item_type);
return Texts("Table$has_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "add")) {
EXPECT_POINTER();
arg_t *arg_spec = new (arg_t, .name = "item", .type = set->item_type);
return Texts("Table$set_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", NULL, ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "add_all")) {
EXPECT_POINTER();
arg_t *arg_spec =
new (arg_t, .name = "items", .type = Type(ListType, .item_type = Match(self_value_t, SetType)->item_type));
return Texts("({ Table_t *set = ", self, "; ",
"List_t to_add = ", compile_arguments(env, ast, arg_spec, call->args), "; ",
"for (int64_t i = 0; i < to_add.length; i++)\n"
"Table$set(set, to_add.data + i*to_add.stride, NULL, ",
compile_type_info(self_value_t), ");\n", "(void)0; })");
} else if (streq(call->name, "remove")) {
EXPECT_POINTER();
arg_t *arg_spec = new (arg_t, .name = "item", .type = set->item_type);
return Texts("Table$remove_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "remove_all")) {
EXPECT_POINTER();
arg_t *arg_spec =
new (arg_t, .name = "items", .type = Type(ListType, .item_type = Match(self_value_t, SetType)->item_type));
return Texts("({ Table_t *set = ", self, "; ",
"List_t to_add = ", compile_arguments(env, ast, arg_spec, call->args), "; ",
"for (int64_t i = 0; i < to_add.length; i++)\n"
"Table$remove(set, to_add.data + i*to_add.stride, ",
compile_type_info(self_value_t), ");\n", "(void)0; })");
} else if (streq(call->name, "clear")) {
EXPECT_POINTER();
(void)compile_arguments(env, ast, NULL, call->args);
return Texts("Table$clear(", self, ")");
} else if (streq(call->name, "with")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "other", .type = self_value_t);
return Texts("Table$with(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "overlap")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "other", .type = self_value_t);
return Texts("Table$overlap(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "without")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "other", .type = self_value_t);
return Texts("Table$without(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "is_subset_of")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec =
new (arg_t, .name = "other", .type = self_value_t,
.next = new (arg_t, .name = "strict", .type = Type(BoolType), .default_val = FakeAST(Bool, false)));
return Texts("Table$is_subset_of(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "is_superset_of")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec =
new (arg_t, .name = "other", .type = self_value_t,
.next = new (arg_t, .name = "strict", .type = Type(BoolType), .default_val = FakeAST(Bool, false)));
return Texts("Table$is_superset_of(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else code_err(ast, "There is no '", call->name, "' method for tables");
}
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