78 lines
3.7 KiB
C
78 lines
3.7 KiB
C
// 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"
|
|
|
|
CORD compile_struct_typeinfo(env_t *env, type_t *t, const char *name, arg_ast_t *fields, bool is_secret, bool is_opaque)
|
|
{
|
|
CORD typeinfo_name = CORD_all(namespace_prefix(env, env->namespace), name, "$$info");
|
|
CORD type_code = Match(t, StructType)->external ? name : CORD_all("struct ", namespace_prefix(env, env->namespace), name, "$$struct");
|
|
|
|
int num_fields = 0;
|
|
for (arg_ast_t *f = fields; f; f = f->next)
|
|
num_fields += 1;
|
|
const char *short_name = name;
|
|
if (strchr(short_name, '$'))
|
|
short_name = strrchr(short_name, '$') + 1;
|
|
|
|
const char *metamethods = is_packed_data(t) ? "PackedData$metamethods" : "Struct$metamethods";
|
|
CORD typeinfo = CORD_asprintf("public const TypeInfo_t %r = {.size=sizeof(%r), .align=__alignof__(%r), .metamethods=%s, "
|
|
".tag=StructInfo, .StructInfo.name=\"%s\"%s%s, "
|
|
".StructInfo.num_fields=%ld",
|
|
typeinfo_name, type_code, type_code, metamethods, short_name, is_secret ? ", .StructInfo.is_secret=true" : "",
|
|
is_opaque ? ", .StructInfo.is_opaque=true" : "",
|
|
num_fields);
|
|
if (fields) {
|
|
typeinfo = CORD_asprintf("%r, .StructInfo.fields=(NamedType_t[%d]){", typeinfo, num_fields);
|
|
for (arg_ast_t *f = fields; f; f = f->next) {
|
|
type_t *field_type = get_arg_ast_type(env, f);
|
|
typeinfo = CORD_all(typeinfo, "{\"", f->name, "\", ", compile_type_info(field_type), "}");
|
|
if (f->next) typeinfo = CORD_all(typeinfo, ", ");
|
|
}
|
|
typeinfo = CORD_all(typeinfo, "}");
|
|
}
|
|
return CORD_all(typeinfo, "};\n");
|
|
}
|
|
|
|
CORD compile_struct_header(env_t *env, ast_t *ast)
|
|
{
|
|
auto def = Match(ast, StructDef);
|
|
CORD typeinfo_name = CORD_all(namespace_prefix(env, env->namespace), def->name, "$$info");
|
|
CORD type_code = def->external ? def->name : CORD_all("struct ", namespace_prefix(env, env->namespace), def->name, "$$struct");
|
|
|
|
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);
|
|
type_t *check_for_opaque = non_optional(field_t);
|
|
if (check_for_opaque->tag == StructType && Match(check_for_opaque, StructType)->opaque) {
|
|
if (field->type)
|
|
code_err(field->type, "This is an opaque type, so it can't be used as a struct field type");
|
|
else if (field->value)
|
|
code_err(field->value, "This is an opaque type, so it can't be used as a struct field type");
|
|
}
|
|
fields = CORD_all(fields, compile_declaration(field_t, field->name), field_t->tag == BoolType ? ":1" : CORD_EMPTY, ";\n");
|
|
}
|
|
CORD struct_code = def->external ? CORD_EMPTY : CORD_all(type_code, " {\n", fields, "};\n");
|
|
type_t *t = Table$str_get(*env->types, def->name);
|
|
|
|
CORD unpadded_size = def->opaque ? CORD_all("sizeof(", type_code, ")") : CORD_asprintf("%zu", unpadded_struct_size(t));
|
|
CORD typeinfo_code = CORD_all("extern const TypeInfo_t ", typeinfo_name, ";\n");
|
|
CORD optional_code = CORD_EMPTY;
|
|
if (!def->opaque) {
|
|
optional_code = CORD_all("DEFINE_OPTIONAL_TYPE(", compile_type(t), ", ", unpadded_size, ",",
|
|
namespace_prefix(env, env->namespace), "$Optional", def->name, "$$type);\n");
|
|
}
|
|
return CORD_all(struct_code, optional_code, typeinfo_code);
|
|
}
|
|
|
|
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
|