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// This file defines how to compile lists
#include <gc.h>
#include <glob.h>
#include <gmp.h>
#include <uninorm.h>
#include "../ast.h"
#include "../config.h"
#include "../environment.h"
#include "../stdlib/text.h"
#include "../stdlib/util.h"
#include "../typecheck.h"
#include "compilation.h"
static ast_t *add_to_list_comprehension(ast_t *item, ast_t *subject) {
return WrapAST(item, MethodCall, .name = "insert", .self = subject, .args = new (arg_ast_t, .value = item));
}
public
Text_t compile_typed_list(env_t *env, ast_t *ast, type_t *list_type) {
DeclareMatch(list, ast, List);
if (!list->items) return Text("EMPTY_LIST");
type_t *item_type = Match(list_type, ListType)->item_type;
if (item_type == NULL) code_err(ast, "I couldn't figure out what item type goes into this list");
int64_t n = 0;
for (ast_list_t *item = list->items; item; item = item->next) {
++n;
if (item->ast->tag == Comprehension) goto list_comprehension;
}
{
env_t *scope = item_type->tag == EnumType ? with_enum_scope(env, item_type) : env;
if (is_incomplete_type(item_type)) code_err(ast, "This list's type can't be inferred!");
Text_t code = Texts("TypedListN(", compile_type(item_type), ", ", n);
for (ast_list_t *item = list->items; item; item = item->next) {
code = Texts(code, ", ", compile_to_type(scope, item->ast, item_type));
}
return Texts(code, ")");
}
list_comprehension: {
env_t *scope = item_type->tag == EnumType ? with_enum_scope(env, item_type) : fresh_scope(env);
static int64_t comp_num = 1;
const char *comprehension_name = String("list$", comp_num++);
ast_t *comprehension_var =
LiteralCode(Texts("&", comprehension_name), .type = Type(PointerType, .pointed = list_type, .is_stack = true));
Closure_t comp_action = {.fn = add_to_list_comprehension, .userdata = comprehension_var};
scope->comprehension_action = &comp_action;
Text_t code = Texts("({ List_t ", comprehension_name, " = EMPTY_LIST;");
// set_binding(scope, comprehension_name, list_type, comprehension_name);
for (ast_list_t *item = list->items; item; item = item->next) {
if (item->ast->tag == Comprehension) code = Texts(code, "\n", compile_statement(scope, item->ast));
else code = Texts(code, compile_statement(scope, add_to_list_comprehension(item->ast, comprehension_var)));
}
code = Texts(code, " ", comprehension_name, "; })");
return code;
}
}
public
Text_t compile_list_method_call(env_t *env, ast_t *ast) {
DeclareMatch(call, ast, MethodCall);
type_t *self_t = get_type(env, call->self);
int64_t pointer_depth = 0;
type_t *self_value_t = self_t;
for (; self_value_t->tag == PointerType; self_value_t = Match(self_value_t, PointerType)->pointed)
pointer_depth += 1;
Text_t self = compile(env, call->self);
#define EXPECT_POINTER() \
do { \
if (pointer_depth < 1) code_err(call->self, "I expected a list pointer here, not a list value"); \
else if (pointer_depth > 1) code_err(call->self, "I expected a list pointer here, not a nested list pointer"); \
} while (0)
type_t *item_t = Match(self_value_t, ListType)->item_type;
Text_t padded_item_size = Texts("sizeof(", compile_type(item_t), ")");
if (streq(call->name, "insert")) {
EXPECT_POINTER();
arg_t *arg_spec =
new (arg_t, .name = "item", .type = item_t,
.next = new (arg_t, .name = "at", .type = INT_TYPE, .default_val = FakeAST(Int, .str = "0")));
return Texts("List$insert_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
padded_item_size, ")");
} else if (streq(call->name, "insert_all")) {
EXPECT_POINTER();
arg_t *arg_spec =
new (arg_t, .name = "items", .type = self_value_t,
.next = new (arg_t, .name = "at", .type = INT_TYPE, .default_val = FakeAST(Int, .str = "0")));
return Texts("List$insert_all(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
padded_item_size, ")");
} else if (streq(call->name, "remove_at")) {
EXPECT_POINTER();
arg_t *arg_spec =
new (arg_t, .name = "index", .type = INT_TYPE, .default_val = FakeAST(Int, .str = "-1"),
.next = new (arg_t, .name = "count", .type = INT_TYPE, .default_val = FakeAST(Int, .str = "1")));
return Texts("List$remove_at(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
padded_item_size, ")");
} else if (streq(call->name, "remove_item")) {
EXPECT_POINTER();
arg_t *arg_spec =
new (arg_t, .name = "item", .type = item_t,
.next = new (arg_t, .name = "max_count", .type = INT_TYPE, .default_val = FakeAST(Int, .str = "-1")));
return Texts("List$remove_item_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "has")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "item", .type = item_t);
return Texts("List$has_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "sample")) {
type_t *random_num_type = parse_type_string(env, "func(->Num)?");
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec =
new (arg_t, .name = "count", .type = INT_TYPE,
.next = new (
arg_t, .name = "weights", .type = Type(ListType, .item_type = Type(NumType, .bits = TYPE_NBITS64)),
.default_val = FakeAST(None),
.next = new (arg_t, .name = "random", .type = random_num_type, .default_val = FakeAST(None))));
return Texts("List$sample(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
padded_item_size, ")");
} else if (streq(call->name, "shuffle")) {
type_t *random_int64_type = parse_type_string(env, "func(min,max:Int64->Int64)?");
EXPECT_POINTER();
arg_t *arg_spec = new (arg_t, .name = "random", .type = random_int64_type, .default_val = FakeAST(None));
return Texts("List$shuffle(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
padded_item_size, ")");
} else if (streq(call->name, "shuffled")) {
type_t *random_int64_type = parse_type_string(env, "func(min,max:Int64->Int64)?");
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "random", .type = random_int64_type, .default_val = FakeAST(None));
return Texts("List$shuffled(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
padded_item_size, ")");
} else if (streq(call->name, "random")) {
type_t *random_int64_type = parse_type_string(env, "func(min,max:Int64->Int64)?");
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "random", .type = random_int64_type, .default_val = FakeAST(None));
return Texts("List$random_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type(item_t), ")");
} else if (streq(call->name, "sort") || streq(call->name, "sorted")) {
if (streq(call->name, "sort")) EXPECT_POINTER();
else self = compile_to_pointer_depth(env, call->self, 0, false);
Text_t comparison;
if (call->args) {
type_t *item_ptr = Type(PointerType, .pointed = item_t, .is_stack = true);
type_t *fn_t = NewFunctionType(Type(IntType, .bits = TYPE_IBITS32), {.name = "x", .type = item_ptr},
{.name = "y", .type = item_ptr});
arg_t *arg_spec = new (arg_t, .name = "by", .type = Type(ClosureType, .fn = fn_t));
comparison = compile_arguments(env, ast, arg_spec, call->args);
} else {
comparison = Texts("((Closure_t){.fn=generic_compare, "
".userdata=(void*)",
compile_type_info(item_t), "})");
}
return Texts("List$", call->name, "(", self, ", ", comparison, ", ", padded_item_size, ")");
} else if (streq(call->name, "heapify")) {
EXPECT_POINTER();
Text_t comparison;
if (call->args) {
type_t *item_ptr = Type(PointerType, .pointed = item_t, .is_stack = true);
type_t *fn_t = NewFunctionType(Type(IntType, .bits = TYPE_IBITS32), {.name = "x", .type = item_ptr},
{.name = "y", .type = item_ptr});
arg_t *arg_spec = new (arg_t, .name = "by", .type = Type(ClosureType, .fn = fn_t));
comparison = compile_arguments(env, ast, arg_spec, call->args);
} else {
comparison = Texts("((Closure_t){.fn=generic_compare, "
".userdata=(void*)",
compile_type_info(item_t), "})");
}
return Texts("List$heapify(", self, ", ", comparison, ", ", padded_item_size, ")");
} else if (streq(call->name, "heap_push")) {
EXPECT_POINTER();
type_t *item_ptr = Type(PointerType, .pointed = item_t, .is_stack = true);
type_t *fn_t = NewFunctionType(Type(IntType, .bits = TYPE_IBITS32), {.name = "x", .type = item_ptr},
{.name = "y", .type = item_ptr});
ast_t *default_cmp = LiteralCode(Texts("((Closure_t){.fn=generic_compare, "
".userdata=(void*)",
compile_type_info(item_t), "})"),
.type = Type(ClosureType, .fn = fn_t));
arg_t *arg_spec =
new (arg_t, .name = "item", .type = item_t,
.next = new (arg_t, .name = "by", .type = Type(ClosureType, .fn = fn_t), .default_val = default_cmp));
Text_t arg_code = compile_arguments(env, ast, arg_spec, call->args);
return Texts("List$heap_push_value(", self, ", ", arg_code, ", ", padded_item_size, ")");
} else if (streq(call->name, "heap_pop")) {
EXPECT_POINTER();
type_t *item_ptr = Type(PointerType, .pointed = item_t, .is_stack = true);
type_t *fn_t = NewFunctionType(Type(IntType, .bits = TYPE_IBITS32), {.name = "x", .type = item_ptr},
{.name = "y", .type = item_ptr});
ast_t *default_cmp = LiteralCode(Texts("((Closure_t){.fn=generic_compare, "
".userdata=(void*)",
compile_type_info(item_t), "})"),
.type = Type(ClosureType, .fn = fn_t));
arg_t *arg_spec = new (arg_t, .name = "by", .type = Type(ClosureType, .fn = fn_t), .default_val = default_cmp);
Text_t arg_code = compile_arguments(env, ast, arg_spec, call->args);
return Texts("List$heap_pop_value(", self, ", ", arg_code, ", ", compile_type(item_t), ", _, ",
promote_to_optional(item_t, Text("_")), ", ", compile_none(item_t), ")");
} else if (streq(call->name, "binary_search")) {
self = compile_to_pointer_depth(env, call->self, 0, call->args != NULL);
type_t *item_ptr = Type(PointerType, .pointed = item_t, .is_stack = true);
type_t *fn_t = NewFunctionType(Type(IntType, .bits = TYPE_IBITS32), {.name = "x", .type = item_ptr},
{.name = "y", .type = item_ptr});
ast_t *default_cmp = LiteralCode(Texts("((Closure_t){.fn=generic_compare, "
".userdata=(void*)",
compile_type_info(item_t), "})"),
.type = Type(ClosureType, .fn = fn_t));
arg_t *arg_spec =
new (arg_t, .name = "target", .type = item_t,
.next = new (arg_t, .name = "by", .type = Type(ClosureType, .fn = fn_t), .default_val = default_cmp));
Text_t arg_code = compile_arguments(env, ast, arg_spec, call->args);
return Texts("List$binary_search_value(", self, ", ", arg_code, ")");
} else if (streq(call->name, "clear")) {
EXPECT_POINTER();
(void)compile_arguments(env, ast, NULL, call->args);
return Texts("List$clear(", self, ")");
} else if (streq(call->name, "find")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
arg_t *arg_spec = new (arg_t, .name = "item", .type = item_t);
return Texts("List$find_value(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ",
compile_type_info(self_value_t), ")");
} else if (streq(call->name, "where")) {
self = compile_to_pointer_depth(env, call->self, 0, call->args != NULL);
type_t *item_ptr = Type(PointerType, .pointed = item_t, .is_stack = true);
type_t *predicate_type =
Type(ClosureType, .fn = NewFunctionType(Type(BoolType), {.name = "item", .type = item_ptr}));
arg_t *arg_spec = new (arg_t, .name = "predicate", .type = predicate_type);
return Texts("List$first(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ")");
} else if (streq(call->name, "from")) {
self = compile_to_pointer_depth(env, call->self, 0, true);
arg_t *arg_spec = new (arg_t, .name = "first", .type = INT_TYPE);
return Texts("List$from(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ")");
} else if (streq(call->name, "to")) {
self = compile_to_pointer_depth(env, call->self, 0, true);
arg_t *arg_spec = new (arg_t, .name = "last", .type = INT_TYPE);
return Texts("List$to(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ")");
} else if (streq(call->name, "slice")) {
self = compile_to_pointer_depth(env, call->self, 0, true);
arg_t *arg_spec =
new (arg_t, .name = "first", .type = INT_TYPE, .next = new (arg_t, .name = "last", .type = INT_TYPE));
return Texts("List$slice(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ")");
} else if (streq(call->name, "by")) {
self = compile_to_pointer_depth(env, call->self, 0, true);
arg_t *arg_spec = new (arg_t, .name = "stride", .type = INT_TYPE);
return Texts("List$by(", self, ", ", compile_arguments(env, ast, arg_spec, call->args), ", ", padded_item_size,
")");
} else if (streq(call->name, "reversed")) {
self = compile_to_pointer_depth(env, call->self, 0, true);
(void)compile_arguments(env, ast, NULL, call->args);
return Texts("List$reversed(", self, ", ", padded_item_size, ")");
} else if (streq(call->name, "unique")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
(void)compile_arguments(env, ast, NULL, call->args);
return Texts("Table$from_entries(", self, ", Table$info(", compile_type_info(item_t), ", &Empty$$info))");
} else if (streq(call->name, "pop")) {
EXPECT_POINTER();
arg_t *arg_spec = new (arg_t, .name = "index", .type = INT_TYPE, .default_val = FakeAST(Int, "-1"));
Text_t index = compile_arguments(env, ast, arg_spec, call->args);
return Texts("List$pop(", self, ", ", index, ", ", compile_type(item_t), ", _, ",
promote_to_optional(item_t, Text("_")), ", ", compile_none(item_t), ")");
} else if (streq(call->name, "counts")) {
self = compile_to_pointer_depth(env, call->self, 0, false);
(void)compile_arguments(env, ast, NULL, call->args);
return Texts("List$counts(", self, ", ", compile_type_info(self_value_t), ")");
} else {
code_err(ast, "There is no '", call->name, "' method for lists");
}
}
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