A function. More...

#include <thorin/lam.h>

Inheritance diagram for thorin::Lam:

Public Member Functions
Lam *	stub (Ref type)

ops & type
Ref	filter () const

Ref	body () const

const Pi *	type () const

dom
See also proj
Ref	dom () const

codom
See also proj
Ref	codom () const

Return Continuation
See also Pi: Return Continuation
const Pi *	ret_pi () const

Ref	ret_dom () const

Ref	ret_var ()
	Yields the Lam::var of the Lam::ret_pi.

Type Checking
void	check () override

Public Member Functions inherited from thorin::Def
World &	world () const

flags_t	flags () const

u32	gid () const

hash_t	hash () const

node_t	node () const

std::string_view	node_name () const

const Def *	type () const
	Yields the raw type of this Def, i.e. maybe `nullptr`.

const Def *	unfold_type () const
	Yields the type of this Def and builds a new `.Type (UInc n)` if necessary.

bool	is_term () const
	Yields `true` if `this:T` and `T:(.Type 0)`.

Ref	arity () const

std::optional< nat_t >	isa_lit_arity () const

nat_t	as_lit_arity () const

template<size_t N = std::dynamic_extent>
auto	ops () const

const Def *	op (size_t i) const

size_t	num_ops () const

Def *	set (size_t i, const Def *def)
	Successively set from left to right.

Def *	reset (size_t i, const Def *def)
	Successively reset from left to right.

Def *	set (Defs ops)
	Def::set `ops` all at once.

Def *	reset (Defs ops)
	Def::reset `ops` all at once.

Def *	unset ()
	Unsets all Def::ops; works even, if not set at all or partially.

Def *	set_type (const Def *)

void	unset_type ()

void	update ()
	Resolves Infers of this Def's type.

bool	is_set () const
	Yields `true` if empty or the last op is set.

Defs	extended_ops () const

const Def *	extended_op (size_t i) const

size_t	num_extended_ops () const

Defs	partial_ops () const

const Def *	partial_op (size_t i) const

size_t	num_partial_ops () const

const Uses &	uses () const

size_t	num_uses () const

unsigned	dep () const

bool	has_dep (Dep d) const

bool	has_dep (unsigned u) const

bool	dep_const () const

nat_t	num_projs () const
	Yields Def::as_lit_arity(), if it is in fact a Lit, or `1` otherwise.

nat_t	num_tprojs () const
	As above but yields 1, if Flags::scalerize_threshold is exceeded.

const Def *	proj (nat_t a, nat_t i) const
	Similar to World::extract while assuming an arity of `a`, but also works on Sigmas and Arrays.

const Def *	proj (nat_t i) const
	As above but takes Def::num_projs as arity.

const Def *	tproj (nat_t i) const
	As above but takes Def::num_tprojs.

template<nat_t A = -1_n, class F >
auto	projs (F f) const
	Splits this Def via Def::projections into an Array (if `A == -1_n`) or `std::array` (otherwise).

template<class F >
auto	tprojs (F f) const

template<class F >
auto	projs (nat_t a, F f) const

template<nat_t A = -1_n>
auto	projs () const

auto	tprojs () const

auto	projs (nat_t a) const

nat_t	num_vars ()

nat_t	num_tvars ()

Ref	var (nat_t a, nat_t i)

Ref	var (nat_t i)

Ref	tvar (nat_t i)

template<nat_t A = std::dynamic_extent, class F >
auto	vars (F f)

template<class F >
auto	tvars (F f)

template<nat_t A = std::dynamic_extent>
auto	vars ()

auto	tvars ()

template<class F >
auto	vars (nat_t a, F f)

auto	vars (nat_t a)

Ref	var ()
	Not necessarily a Var: E.g., if the return type is `[]`, this will yield `()`.

const Var *	has_var ()
	Only returns not `nullptr`, if Var of this mutable has ever been created.

const Var *	has_var () const
	As above if `this` is a mutable.

Muts	local_muts () const

Vars	local_vars () const

Vars	free_vars () const

Vars	free_vars ()

bool	is_open () const
	Has free_vars()?

bool	is_closed () const
	Has no free_vars()?

Muts	fv_consumers ()

bool	is_external () const

void	make_external ()

void	make_internal ()

void	transfer_external (Def *to)

template<class T = Def>
const T *	isa_imm () const

template<class T = Def>
const T *	as_imm () const

template<class T = Def, class R >
const T *	isa_imm (R(T::*f)() const) const

template<class T = Def, bool invert = false>
T *	isa_mut () const
	If `this` is mutable, it will cast `const`ness away and perform a `dynamic_cast` to `T`.

template<class T = Def, bool invert = false>
T *	as_mut () const
	Asserts that `this` is a mutable, casts `const`ness away and performs a `static_cast` to `T`.

Dbg	dbg () const

Loc	loc () const

Sym	sym () const

std::string	unique_name () const
	name + "_" + Def::gid

template<bool Ow = false>
const Def *	set (Loc l) const

template<bool Ow = false>
Def *	set (Loc l)

template<bool Ow = false>
const Def *	set (Sym s) const

template<bool Ow = false>
Def *	set (Sym s)

template<bool Ow = false>
const Def *	set (std::string s) const

template<bool Ow = false>
Def *	set (std::string s)

template<bool Ow = false>
const Def *	set (Loc l, Sym s) const

template<bool Ow = false>
Def *	set (Loc l, Sym s)

template<bool Ow = false>
const Def *	set (Loc l, std::string s) const

template<bool Ow = false>
Def *	set (Loc l, std::string s)

template<bool Ow = false>
const Def *	set (Dbg d) const

template<bool Ow = false>
Def *	set (Dbg d)

const Def *	debug_prefix (std::string) const

const Def *	debug_suffix (std::string) const

Def *	stub (World &w, Ref type)

Def *	stub (Ref type)

Ref	rebuild (World &w, Ref type, Defs ops) const
	Def::rebuilds this Def while using `new_op` as substitute for its `i'th` Def::op.

Ref	rebuild (Ref type, Defs ops) const

virtual const Def *	immutabilize ()
	Tries to make an immutable from a mutable.

const Def *	refine (size_t i, const Def *new_op) const

DefVec	reduce (const Def *arg) const
	Rewrites Def::ops by substituting `this` mutable's Var with `arg`.

DefVec	reduce (const Def *arg)

void	dump () const

void	dump (int max) const

void	write (int max) const

void	write (int max, const char *file) const

std::ostream &	stream (std::ostream &, int max) const

void	dot (std::ostream &os, uint32_t max=0xFFFFFF, bool types=false) const

void	dot (const char *file=nullptr, uint32_t max=0xFFFFFF, bool types=false) const
	Same as above but write to `file` or `std::cout` if `file` is `nullptr`.

void	dot (const std::string &file, uint32_t max=0xFFFFFF, bool types=false) const

Static Public Member Functions
Continuations
See also Pi: Continuations
static const Lam *	isa_cn (Ref d)

static const Lam *	isa_basicblock (Ref d)

static const Lam *	isa_returning (Ref d)

static Lam *	isa_mut_cn (Ref d)
	Only for mutables.

static Lam *	isa_mut_basicblock (Ref d)
	Only for mutables.

static Lam *	isa_mut_returning (Ref d)
	Only for mutables.

Private Member Functions
Lam *	stub_ (World &, Ref) override

Setters
Lam::Filter is a `std::variant<bool, const Def*>` that lets you set the Lam::filter() like this: lam1->app(true, f, arg); lam2->app(my_filter_def, f, arg); See also Setting Ops
using	Filter = std::variant< bool, const Def * >

Lam *	set (Filter filter, const Def *body)

Lam *	set_filter (Filter)
	Set filter first.

Lam *	set_body (const Def *body)
	Set body second.

Lam *	app (Filter filter, const Def callee, const Def arg)
	Set body to an App of `callee` and `arg`.

Lam *	app (Filter filter, const Def *callee, Defs args)
	Set body to an App of `callee` and `args`.

Lam *	branch (Filter filter, const Def cond, const Def t, const Def f, const Def mem=nullptr)
	Set body to an App of `(f, t)#cond mem` or `(f, t)#cond ()` if `mem` is `nullptr`.

Lam *	test (Filter filter, const Def val, const Def idx, const Def match, const Def clash, const Def *mem)

Lam *	set (Defs ops)

Lam *	unset ()

Additional Inherited Members
Protected Member Functions inherited from thorin::Def
	Def (World , node_t, const Def type, Defs ops, flags_t flags)
	Constructor for an immutable Def.

	Def (node_t n, const Def *type, Defs ops, flags_t flags)
	As above but World retrieved from `type`.

	Def (node_t, const Def *type, size_t num_ops, flags_t flags)
	Constructor for a mutable Def.

virtual	~Def ()=default

Sym	sym (const char *) const

Sym	sym (std::string_view) const

Sym	sym (std::string) const

Protected Attributes inherited from thorin::Def
Dbg	dbg_

union {

NormalizeFn	normalizer_
	Axiom only: Axioms use this member to store their normalizer.

const Axiom *	axiom_
	App only: Curried Apps of Axioms use this member to propagate the Axiom.

const Var *	var_
	Mutable only: Var of a mutable.

World *	world_

};

flags_t	flags_

u8	curry_

u8	trip_