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// Logic for compiling new struct types defined in code
#include <ctype.h>
#include <gc/cord.h>
#include <gc.h>
#include <stdio.h>
#include "ast.h"
#include "stdlib/text.h"
#include "compile.h"
#include "cordhelpers.h"
#include "environment.h"
#include "typecheck.h"
#include "stdlib/util.h"
void compile_struct_def(env_t *env, ast_t *ast)
{
auto def = Match(ast, StructDef);
CORD full_name = CORD_cat(namespace_prefix(env, env->namespace), def->name);
type_t *t = Table$str_get(*env->types, def->name);
assert(t && t->tag == StructType);
int num_fields = 0;
for (arg_ast_t *f = def->fields; f; f = f->next)
num_fields += 1;
const char *short_name = def->name;
if (strchr(short_name, '$'))
short_name = strrchr(short_name, '$') + 1;
env->code->typeinfos = CORD_all("public const TypeInfo_t ", full_name, ";\n", env->code->typeinfos);
CORD typeinfo = CORD_asprintf("public const TypeInfo_t %r = {.size=%zu, .align=%zu, .tag=StructInfo, .StructInfo.name=\"%s\"%s, "
".StructInfo.num_fields=%ld",
full_name, type_size(t), type_align(t), short_name, def->secret ? ", .StructInfo.is_secret=true" : "",
num_fields);
if (def->fields) {
typeinfo = CORD_asprintf("%r, .StructInfo.fields=(NamedType_t[%d]){", typeinfo, num_fields);
for (arg_ast_t *f = def->fields; f; f = f->next) {
type_t *field_type = get_arg_ast_type(env, f);
typeinfo = CORD_all(typeinfo, "{\"", f->name, "\", ", compile_type_info(env, field_type), "}");
if (f->next) typeinfo = CORD_all(typeinfo, ", ");
}
typeinfo = CORD_all(typeinfo, "}");
}
typeinfo = CORD_all(typeinfo, "};\n");
env->code->typeinfos = CORD_all(env->code->typeinfos, typeinfo);
compile_namespace(env, def->name, def->namespace);
}
CORD compile_struct_header(env_t *env, ast_t *ast)
{
auto def = Match(ast, StructDef);
CORD full_name = CORD_cat(namespace_prefix(env, env->namespace), def->name);
CORD fields = CORD_EMPTY;
for (arg_ast_t *field = def->fields; field; field = field->next) {
type_t *field_t = get_arg_ast_type(env, field);
CORD type_code = compile_type(field_t);
fields = CORD_all(fields, type_code, " $", field->name, field_t->tag == BoolType ? ":1" : CORD_EMPTY, ";\n");
}
CORD struct_code = CORD_all("struct ", full_name, "_s {\n");
struct_code = CORD_all(struct_code, "};\n");
type_t *t = Table$str_get(*env->types, def->name);
return CORD_all(
"typedef struct ", full_name, "_s ", full_name, "_t;\n",
"struct ", full_name, "_s {\n",
fields,
"};\n",
"typedef struct {\n",
"union {\n",
full_name, "_t value;\n"
"struct {\n"
"char _padding[", heap_strf("%zu", unpadded_struct_size(t)), "];\n",
"Bool_t is_null;\n"
"};\n"
"};\n"
"} ", namespace_prefix(env, env->namespace), "$Optional", def->name, "_t;\n"
"extern const TypeInfo_t ", full_name, ";\n");
}
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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