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// This file defines how to compile types and type info values
#include "../types.h"
#include "../ast.h"
#include "../environment.h"
#include "../naming.h"
#include "../stdlib/datatypes.h"
#include "../stdlib/text.h"
#include "../util.h"
#include "compilation.h"
public
Text_t compile_type(type_t *t) {
if (t == PATH_TYPE) return Text("Path_t");
switch (t->tag) {
case ReturnType: errx(1, "Shouldn't be compiling ReturnType to a type");
case AbortType: return Text("void");
case VoidType: return Text("void");
case MemoryType: return Text("void");
case BoolType: return Text("Bool_t");
case ByteType: return Text("Byte_t");
case CStringType: return Text("const char*");
case BigIntType: return Text("Int_t");
case IntType: return Texts("Int", (int32_t)Match(t, IntType)->bits, "_t");
case NumType:
return Match(t, NumType)->bits == TYPE_NBITS64 ? Text("Num_t")
: Texts("Num", (int32_t)Match(t, NumType)->bits, "_t");
case TextType: {
DeclareMatch(text, t, TextType);
if (!text->lang || streq(text->lang, "Text")) return Text("Text_t");
else return namespace_name(text->env, text->env->namespace, Text("$type"));
}
case ListType: return Text("List_t");
case TableType: return Text("Table_t");
case FunctionType: {
DeclareMatch(fn, t, FunctionType);
Text_t code = Texts(compile_type(fn->ret), " (*)(");
for (arg_t *arg = fn->args; arg; arg = arg->next) {
code = Texts(code, compile_type(arg->type));
if (arg->next) code = Texts(code, ", ");
}
if (!fn->args) code = Texts(code, "void");
return Texts(code, ")");
}
case ClosureType: return Text("Closure_t");
case PointerType: return Texts(compile_type(Match(t, PointerType)->pointed), "*");
case StructType: {
DeclareMatch(s, t, StructType);
if (s->external) return Text$from_str(s->name);
return Texts("struct ", namespace_name(s->env, s->env->namespace, Text("$struct")));
}
case EnumType: {
DeclareMatch(e, t, EnumType);
return namespace_name(e->env, e->env->namespace, Text("$type"));
}
case OptionalType: {
type_t *nonnull = Match(t, OptionalType)->type;
switch (nonnull->tag) {
case CStringType:
case FunctionType:
case ClosureType:
case PointerType:
case EnumType: return compile_type(nonnull);
case TextType:
case IntType:
case BigIntType:
case NumType:
case BoolType:
case ByteType:
case ListType:
case TableType: return Texts("Optional", compile_type(nonnull));
case StructType: {
if (nonnull == PATH_TYPE) return Text("OptionalPath_t");
DeclareMatch(s, nonnull, StructType);
return namespace_name(s->env, s->env->namespace->parent, Texts("$Optional", s->name, "$$type"));
}
default: compiler_err(NULL, NULL, NULL, "Optional types are not supported for: ", type_to_text(t));
}
}
case TypeInfoType: return Text("TypeInfo_t");
default: compiler_err(NULL, NULL, NULL, "Compiling type is not implemented for type with tag ", t->tag);
}
return EMPTY_TEXT;
}
public
Text_t compile_type_info(type_t *t) {
if (t == NULL) compiler_err(NULL, NULL, NULL, "Attempt to compile a NULL type");
if (t == PATH_TYPE) return Text("&Path$info");
switch (t->tag) {
case BoolType:
case ByteType:
case IntType:
case BigIntType:
case NumType:
case CStringType: return Texts("&", type_to_text(t), "$info");
case TextType: {
DeclareMatch(text, t, TextType);
if (!text->lang || streq(text->lang, "Text")) return Text("&Text$info");
return Texts("(&", namespace_name(text->env, text->env->namespace, Text("$info")), ")");
}
case StructType: {
DeclareMatch(s, t, StructType);
return Texts("(&", namespace_name(s->env, s->env->namespace, Text("$info")), ")");
}
case EnumType: {
DeclareMatch(e, t, EnumType);
return Texts("(&", namespace_name(e->env, e->env->namespace, Text("$info")), ")");
}
case ListType: {
type_t *item_t = Match(t, ListType)->item_type;
return Texts("List$info(", compile_type_info(item_t), ")");
}
case TableType: {
DeclareMatch(table, t, TableType);
type_t *key_type = table->key_type;
type_t *value_type = table->value_type;
return Texts("Table$info(", compile_type_info(key_type), ", ", compile_type_info(value_type), ")");
}
case PointerType: {
DeclareMatch(ptr, t, PointerType);
const char *sigil = ptr->is_stack ? "&" : "@";
return Texts("Pointer$info(", quoted_str(sigil), ", ", compile_type_info(ptr->pointed), ")");
}
case FunctionType: {
return Texts("Function$info(", quoted_text(type_to_text(t)), ")");
}
case ClosureType: {
return Texts("Closure$info(", quoted_text(type_to_text(t)), ")");
}
case OptionalType: {
type_t *non_optional = Match(t, OptionalType)->type;
return Texts("Optional$info(", (int64_t)type_size(t), ", ", (int64_t)type_align(t), ", ",
compile_type_info(non_optional), ")");
}
case TypeInfoType: return Texts("Type$info(", quoted_text(type_to_text(Match(t, TypeInfoType)->type)), ")");
case MemoryType: return Text("&Memory$info");
case VoidType: return Text("&Void$info");
default: compiler_err(NULL, 0, 0, "I couldn't convert to a type info: ", type_to_text(t));
}
return EMPTY_TEXT;
}
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