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/*
* MRustC - Rust Compiler
* - By John Hodge (Mutabah/thePowersGang)
*
* synexts/lang_item.cpp
* - Binds language items to #[lang_item] tagged items
*/
#include <synext.hpp>
#include "../common.hpp"
#include "../ast/ast.hpp"
#include "../ast/crate.hpp"
void handle_lang_item(const Span& sp, AST::Crate& crate, const AST::Path& path, const ::std::string& name, AST::eItemType type)
{
if(name == "phantom_fn") {
// - Just save path
}
else if( name == "send" ) {
// Don't care, Send is fully library in mrustc
// - Needed for `static`
}
else if( name == "sync" ) {
// Don't care, Sync is fully library in mrustc
// - Needed for `static`
}
else if( name == "sized" ) {
DEBUG("Bind 'sized' to " << path);
}
else if( name == "copy" ) {
DEBUG("Bind 'copy' to " << path);
}
// ops traits
else if( name == "drop" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "add" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "sub" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "mul" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "div" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "rem" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "neg" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "not" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "bitand" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "bitor" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "bitxor" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "shl" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "shr" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "add_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "sub_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "div_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "rem_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "mul_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "bitand_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "bitor_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "bitxor_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "shl_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "shr_assign" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "index" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "deref" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "index_mut" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "deref_mut" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "fn" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "fn_mut" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "fn_once" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "eq" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "ord" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "unsize" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "coerce_unsized" ) { DEBUG("Bind '"<<name<<"' to " << path); }
else if( name == "iterator" ) { /* mrustc just desugars? */ }
else if( name == "debug_trait" ) { /* TODO: Poke derive() with this */ }
// Structs
else if( name == "non_zero" ) { }
else if( name == "phantom_data" ) { }
else if( name == "range_full" ) { }
else if( name == "range" ) { }
else if( name == "range_from" ) { }
else if( name == "range_to" ) { }
else if( name == "unsafe_cell" ) { }
// Functions
else if( name == "panic" ) { }
else if( name == "panic_bounds_check" ) { }
else if( name == "panic_fmt" ) { }
else if( name == "str_eq" ) { }
else {
ERROR(sp, E0000, "Unknown language item '" << name << "'");
}
auto rv = crate.m_lang_items.insert( ::std::make_pair( name, ::AST::Path(path) ) );
if( !rv.second ) {
ERROR(sp, E0000, "Duplicate definition of language item '" << name << "'");
}
}
class Decorator_LangItem:
public ExpandDecorator
{
public:
AttrStage stage() const override { return AttrStage::EarlyPost; }
void handle(const Span& sp, const AST::MetaItem& attr, AST::Crate& crate, const AST::Path& path, AST::Module& mod, AST::Item& i) const override
{
TU_MATCH_DEF(::AST::Item, (i), (e),
(
TODO(sp, "Unknown item type with #[lang=\""<<attr<<"\"] attached at " << path);
),
(Function,
handle_lang_item(sp, crate, path, attr.string(), AST::ITEM_FN);
),
(Struct,
handle_lang_item(sp, crate, path, attr.string(), AST::ITEM_STRUCT);
),
(Trait,
handle_lang_item(sp, crate, path, attr.string(), AST::ITEM_TRAIT);
)
)
}
void handle(const Span& sp, const AST::MetaItem& mi, AST::Crate& crate, const AST::Module& mod, AST::ImplDef& impl) const override {
const ::std::string& name = mi.string();
if( name == "i8" ) {}
else if( name == "u8" ) {}
else if( name == "i16" ) {}
else if( name == "u16" ) {}
else if( name == "i32" ) {}
else if( name == "u32" ) {}
else if( name == "i64" ) {}
else if( name == "u64" ) {}
else if( name == "isize" ) {}
else if( name == "usize" ) {}
else if( name == "const_ptr" ) {}
else if( name == "mut_ptr" ) {}
else {
ERROR(sp, E0000, "Unknown lang item '" << name << "' on impl");
}
// TODO: Somehow annotate these impls to allow them to provide inherents?
}
};
STATIC_DECORATOR("lang", Decorator_LangItem)
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