Library
Module
Module type
Parameter
Class
Class type
Abstract syntax tree produced by parsing
Warning: this module is unstable and part of compiler-libs.
type constant = Parsetree.constant =
| Pconst_integer of string * char option
Integer constants such as 3
3l
3L
3n
.
Suffixes [g-z][G-Z]
are accepted by the parser. Suffixes except 'l'
, 'L'
and 'n'
are rejected by the typechecker
| Pconst_char of char
Character such as 'c'
.
| Pconst_string of string * Location.t * string option
Constant string such as "constant"
or {delim|other constant|delim}
.
The location span the content of the string, without the delimiters.
*)| Pconst_float of string * char option
Float constant such as 3.4
, 2e5
or 1.4e-4
.
Suffixes g-z
G-Z
are accepted by the parser. Suffixes are rejected by the typechecker.
type location_stack = Location.t list
type attribute = Parsetree.attribute = {
attr_name : string Asttypes.loc;
attr_payload : payload;
attr_loc : Location.t;
}
Attributes such as [\@id ARG]
and [\@\@id ARG]
.
Metadata containers passed around within the AST. The compiler ignores unknown attributes.
and extension = string Asttypes.loc * payload
Extension points such as [%id ARG] and [%%id ARG]
.
Sub-language placeholder -- rejected by the typechecker.
and attributes = attribute list
and payload = Parsetree.payload =
| PStr of structure
| PSig of signature
: SIG
in an attribute or an extension point
| PTyp of core_type
: T
in an attribute or an extension point
| PPat of pattern * expression option
? P
or ? P when E
, in an attribute or an extension point
and core_type = Parsetree.core_type = {
ptyp_desc : core_type_desc;
ptyp_loc : Location.t;
ptyp_loc_stack : location_stack;
ptyp_attributes : attributes;
... [\@id1] [\@id2]
}
and core_type_desc = Parsetree.core_type_desc =
| Ptyp_any
_
| Ptyp_var of string
A type variable such as 'a
| Ptyp_arrow of Asttypes.arg_label * core_type * core_type
| Ptyp_tuple of core_type list
Ptyp_tuple([T1 ; ... ; Tn])
represents a product type T1 * ... * Tn
.
Invariant: n >= 2
.
| Ptyp_constr of Longident.t Asttypes.loc * core_type list
Ptyp_constr(lident, l)
represents:
tconstr
when l=[]
,T tconstr
when l=[T]
,(T1, ..., Tn) tconstr
when l=[T1 ; ... ; Tn]
.| Ptyp_object of object_field list * Asttypes.closed_flag
| Ptyp_class of Longident.t Asttypes.loc * core_type list
Ptyp_class(tconstr, l)
represents:
#tconstr
when l=[]
,T #tconstr
when l=[T]
,(T1, ..., Tn) #tconstr
when l=[T1 ; ... ; Tn]
.| Ptyp_alias of core_type * string
T as 'a
.
| Ptyp_variant of row_field list
* Asttypes.closed_flag
* Asttypes.label list option
| Ptyp_poly of string Asttypes.loc list * core_type
'a1 ... 'an. T
Can only appear in the following context:
As the core_type
of a Ppat_constraint
node corresponding to a constraint on a let-binding:
let x : 'a1 ... 'an. T = e ...
Cfk_virtual
for methods (not values).core_type
of a Pctf_method
node.pld_type
field of a label_declaration
.core_type
of a Ptyp_object
node.pval_type
field of a value_description
.| Ptyp_package of package_type
(module S)
.
| Ptyp_extension of extension
[%id]
.
and package_type =
Longident.t Asttypes.loc * (Longident.t Asttypes.loc * core_type) list
As package_type
typed values:
(S, [])
represents (module S)
,(S, [(t1, T1) ; ... ; (tn, Tn)])
represents (module S with type t1 = T1 and ... and tn = Tn)
.and row_field = Parsetree.row_field = {
prf_desc : row_field_desc;
prf_loc : Location.t;
prf_attributes : attributes;
}
and row_field_desc = Parsetree.row_field_desc =
| Rtag of Asttypes.label Asttypes.loc * bool * core_type list
Rtag(`A, b, l)
represents:
`A
when b
is true
and l
is []
,`A of T
when b
is false
and l
is [T]
,`A of T1 & .. & Tn
when b
is false
and l
is [T1;...Tn]
,`A of & T1 & .. & Tn
when b
is true
and l
is [T1;...Tn]
.bool
field is true if the tag contains a constant (empty) constructor.&
occurs when several types are used for the same constructor (see 4.2 in the manual)| Rinherit of core_type
[ | t ]
and object_field = Parsetree.object_field = {
pof_desc : object_field_desc;
pof_loc : Location.t;
pof_attributes : attributes;
}
and object_field_desc = Parsetree.object_field_desc =
| Otag of Asttypes.label Asttypes.loc * core_type
| Oinherit of core_type
and pattern = Parsetree.pattern = {
ppat_desc : pattern_desc;
ppat_loc : Location.t;
ppat_loc_stack : location_stack;
ppat_attributes : attributes;
... [\@id1] [\@id2]
}
and pattern_desc = Parsetree.pattern_desc =
| Ppat_any
The pattern _
.
| Ppat_var of string Asttypes.loc
A variable pattern such as x
| Ppat_alias of pattern * string Asttypes.loc
An alias pattern such as P as 'a
| Ppat_constant of constant
Patterns such as 1
, 'a'
, "true"
, 1.0
, 1l
, 1L
, 1n
| Ppat_interval of constant * constant
Patterns such as 'a'..'z'
.
Other forms of interval are recognized by the parser but rejected by the type-checker.
*)| Ppat_tuple of pattern list
Patterns (P1, ..., Pn)
.
Invariant: n >= 2
| Ppat_construct of Longident.t Asttypes.loc
* (string Asttypes.loc list * pattern) option
Ppat_construct(C, args)
represents:
C
when args
is None
,C P
when args
is Some ([], P)
C (P1, ..., Pn)
when args
is Some ([], Ppat_tuple [P1; ...; Pn])
C (type a b) P
when args
is Some ([a; b], P)
| Ppat_variant of Asttypes.label * pattern option
Ppat_variant(`A, pat)
represents:
`A
when pat
is None
,`A P
when pat
is Some P
| Ppat_record of (Longident.t Asttypes.loc * pattern) list * Asttypes.closed_flag
| Ppat_array of pattern list
Pattern [| P1; ...; Pn |]
| Ppat_or of pattern * pattern
Pattern P1 | P2
| Ppat_constraint of pattern * core_type
Pattern (P : T)
| Ppat_type of Longident.t Asttypes.loc
Pattern #tconst
| Ppat_lazy of pattern
Pattern lazy P
| Ppat_unpack of string option Asttypes.loc
Ppat_unpack(s)
represents:
(module P)
when s
is Some "P"
(module _)
when s
is None
Note: (module P : S)
is represented as Ppat_constraint(Ppat_unpack(Some "P"), Ptyp_package S)
| Ppat_exception of pattern
Pattern exception P
| Ppat_extension of extension
Pattern [%id]
| Ppat_open of Longident.t Asttypes.loc * pattern
Pattern M.(P)
and expression = Parsetree.expression = {
pexp_desc : expression_desc;
pexp_loc : Location.t;
pexp_loc_stack : location_stack;
pexp_attributes : attributes;
... [\@id1] [\@id2]
}
and expression_desc = Parsetree.expression_desc =
| Pexp_ident of Longident.t Asttypes.loc
Identifiers such as x
and M.x
| Pexp_constant of constant
Expressions constant such as 1
, 'a'
, "true"
, 1.0
, 1l
, 1L
, 1n
| Pexp_let of Asttypes.rec_flag * value_binding list * expression
Pexp_let(flag, [(P1,E1) ; ... ; (Pn,En)], E)
represents:
let P1 = E1 and ... and Pn = EN in E
when flag
is Nonrecursive
,let rec P1 = E1 and ... and Pn = EN in E
when flag
is Recursive
.| Pexp_function of case list
function P1 -> E1 | ... | Pn -> En
| Pexp_fun of Asttypes.arg_label * expression option * pattern * expression
Pexp_fun(lbl, exp0, P, E1)
represents:
fun P -> E1
when lbl
is Nolabel
and exp0
is None
fun ~l:P -> E1
when lbl
is Labelled l
and exp0
is None
fun ?l:P -> E1
when lbl
is Optional l
and exp0
is None
fun ?l:(P = E0) -> E1
when lbl
is Optional l
and exp0
is Some E0
Notes:
E0
is provided, only Optional
is allowed.fun P1 P2 .. Pn -> E1
is represented as nested Pexp_fun
.let f P = E
is represented using Pexp_fun
.| Pexp_apply of expression * (Asttypes.arg_label * expression) list
| Pexp_match of expression * case list
match E0 with P1 -> E1 | ... | Pn -> En
| Pexp_try of expression * case list
try E0 with P1 -> E1 | ... | Pn -> En
| Pexp_tuple of expression list
Expressions (E1, ..., En)
Invariant: n >= 2
| Pexp_construct of Longident.t Asttypes.loc * expression option
Pexp_construct(C, exp)
represents:
C
when exp
is None
,C E
when exp
is Some E
,C (E1, ..., En)
when exp
is Some (Pexp_tuple[E1;...;En])
| Pexp_variant of Asttypes.label * expression option
Pexp_variant(`A, exp)
represents
`A
when exp
is None
`A E
when exp
is Some E
| Pexp_record of (Longident.t Asttypes.loc * expression) list * expression option
Pexp_record([(l1,P1) ; ... ; (ln,Pn)], exp0)
represents
{ l1=P1; ...; ln=Pn }
when exp0
is None
{ E0 with l1=P1; ...; ln=Pn }
when exp0
is Some E0
Invariant: n > 0
| Pexp_field of expression * Longident.t Asttypes.loc
E.l
| Pexp_setfield of expression * Longident.t Asttypes.loc * expression
E1.l <- E2
| Pexp_array of expression list
[| E1; ...; En |]
| Pexp_ifthenelse of expression * expression * expression option
if E1 then E2 else E3
| Pexp_sequence of expression * expression
E1; E2
| Pexp_while of expression * expression
while E1 do E2 done
| Pexp_for of pattern
* expression
* expression
* Asttypes.direction_flag
* expression
| Pexp_constraint of expression * core_type
(E : T)
| Pexp_coerce of expression * core_type option * core_type
Pexp_coerce(E, from, T)
represents
(E :> T)
when from
is None
,(E : T0 :> T)
when from
is Some T0
.| Pexp_send of expression * Asttypes.label Asttypes.loc
E # m
| Pexp_new of Longident.t Asttypes.loc
new M.c
| Pexp_setinstvar of Asttypes.label Asttypes.loc * expression
x <- 2
| Pexp_override of (Asttypes.label Asttypes.loc * expression) list
{< x1 = E1; ...; xn = En >}
| Pexp_letmodule of string option Asttypes.loc * module_expr * expression
let module M = ME in E
| Pexp_letexception of extension_constructor * expression
let exception C in E
| Pexp_assert of expression
assert E
.
Note: assert false
is treated in a special way by the type-checker.
| Pexp_lazy of expression
lazy E
| Pexp_poly of expression * core_type option
Used for method bodies.
Can only be used as the expression under Cfk_concrete
for methods (not values).
| Pexp_object of class_structure
object ... end
| Pexp_newtype of string Asttypes.loc * expression
fun (type t) -> E
| Pexp_pack of module_expr
(module ME)
.
(module ME : S)
is represented as Pexp_constraint(Pexp_pack ME, Ptyp_package S)
| Pexp_open of open_declaration * expression
M.(E)
let open M in E
let open! M in E
| Pexp_letop of letop
let* P = E0 in E1
let* P0 = E00 and* P1 = E01 in E1
| Pexp_extension of extension
[%id]
| Pexp_unreachable
.
Values of type case
represents (P -> E)
or (P when E0 -> E)
and binding_op = Parsetree.binding_op = {
pbop_op : string Asttypes.loc;
pbop_pat : pattern;
pbop_exp : expression;
pbop_loc : Location.t;
}
and value_description = Parsetree.value_description = {
pval_name : string Asttypes.loc;
pval_type : core_type;
pval_prim : string list;
pval_attributes : attributes;
... [\@\@id1] [\@\@id2]
pval_loc : Location.t;
}
Values of type value_description
represents:
and type_declaration = Parsetree.type_declaration = {
ptype_name : string Asttypes.loc;
ptype_params : (core_type * (Asttypes.variance * Asttypes.injectivity)) list;
('a1,...'an) t
ptype_cstrs : (core_type * core_type * Location.t) list;
... constraint T1=T1' ... constraint Tn=Tn'
ptype_kind : type_kind;
ptype_private : Asttypes.private_flag;
for = private ...
ptype_manifest : core_type option;
represents = T
ptype_attributes : attributes;
... [\@\@id1] [\@\@id2]
ptype_loc : Location.t;
}
Here are type declarations and their representation, for various ptype_kind
and ptype_manifest
values:
type t
when type_kind
is Ptype_abstract
, and manifest
is None
,type t = T0
when type_kind
is Ptype_abstract
, and manifest
is Some T0
,type t = C of T | ...
when type_kind
is Ptype_variant
, and manifest
is None
,type t = T0 = C of T | ...
when type_kind
is Ptype_variant
, and manifest
is Some T0
,type t = {l: T; ...}
when type_kind
is Ptype_record
, and manifest
is None
,type t = T0 = {l : T; ...}
when type_kind
is Ptype_record
, and manifest
is Some T0
,type t = ..
when type_kind
is Ptype_open
, and manifest
is None
.and type_kind = Parsetree.type_kind =
| Ptype_abstract
| Ptype_variant of constructor_declaration list
| Ptype_record of label_declaration list
Invariant: non-empty list
*)| Ptype_open
and label_declaration = Parsetree.label_declaration = {
pld_name : string Asttypes.loc;
pld_mutable : Asttypes.mutable_flag;
pld_type : core_type;
pld_loc : Location.t;
pld_attributes : attributes;
l : T [\@id1] [\@id2]
}
{ ...; l: T; ... }
when pld_mutable
is Immutable
,{ ...; mutable l: T; ... }
when pld_mutable
is Mutable
.Note: T
can be a Ptyp_poly
.
and constructor_declaration = Parsetree.constructor_declaration = {
pcd_name : string Asttypes.loc;
pcd_vars : string Asttypes.loc list;
pcd_args : constructor_arguments;
pcd_res : core_type option;
pcd_loc : Location.t;
pcd_attributes : attributes;
C of ... [\@id1] [\@id2]
}
and constructor_arguments = Parsetree.constructor_arguments =
| Pcstr_tuple of core_type list
| Pcstr_record of label_declaration list
Values of type constructor_declaration
represents the constructor arguments of:
C of T1 * ... * Tn
when res = None
, and args = Pcstr_tuple [T1; ... ; Tn]
,C: T0
when res = Some T0
, and args = Pcstr_tuple []
,C: T1 * ... * Tn -> T0
when res = Some T0
, and args = Pcstr_tuple [T1; ... ; Tn]
,C of {...}
when res = None
, and args = Pcstr_record [...]
,C: {...} -> T0
when res = Some T0
, and args = Pcstr_record [...]
.and type_extension = Parsetree.type_extension = {
ptyext_path : Longident.t Asttypes.loc;
ptyext_params : (core_type * (Asttypes.variance * Asttypes.injectivity)) list;
ptyext_constructors : extension_constructor list;
ptyext_private : Asttypes.private_flag;
ptyext_loc : Location.t;
ptyext_attributes : attributes;
... \@\@id1
\@\@id2
}
Definition of new extensions constructors for the extensive sum type t
(type t += ...
).
and extension_constructor = Parsetree.extension_constructor = {
pext_name : string Asttypes.loc;
pext_kind : extension_constructor_kind;
pext_loc : Location.t;
pext_attributes : attributes;
C of ... [\@id1] [\@id2]
}
and type_exception = Parsetree.type_exception = {
ptyexn_constructor : extension_constructor;
ptyexn_loc : Location.t;
ptyexn_attributes : attributes;
... [\@\@id1] [\@\@id2]
}
Definition of a new exception (exception E
).
and extension_constructor_kind = Parsetree.extension_constructor_kind =
| Pext_decl of string Asttypes.loc list
* constructor_arguments
* core_type option
Pext_decl(existentials, c_args, t_opt)
describes a new extension constructor. It can be:
C of T1 * ... * Tn
when:
existentials
is []
,c_args
is [T1; ...; Tn]
,t_opt
is None
C: T0
when
existentials
is []
,c_args
is []
,t_opt
is Some T0
.C: T1 * ... * Tn -> T0
when
existentials
is []
,c_args
is [T1; ...; Tn]
,t_opt
is Some T0
.C: 'a... . T1 * ... * Tn -> T0
when
existentials
is ['a;...]
,c_args
is [T1; ... ; Tn]
,t_opt
is Some T0
.| Pext_rebind of Longident.t Asttypes.loc
Pext_rebind(D)
re-export the constructor D
with the new name C
and class_type = Parsetree.class_type = {
pcty_desc : class_type_desc;
pcty_loc : Location.t;
pcty_attributes : attributes;
... [\@id1] [\@id2]
}
and class_type_desc = Parsetree.class_type_desc =
| Pcty_constr of Longident.t Asttypes.loc * core_type list
c
['a1, ..., 'an] c
| Pcty_signature of class_signature
object ... end
| Pcty_arrow of Asttypes.arg_label * core_type * class_type
Pcty_arrow(lbl, T, CT)
represents:
T -> CT
when lbl
is Nolabel
,~l:T -> CT
when lbl
is Labelled l
,?l:T -> CT
when lbl
is Optional l
.| Pcty_extension of extension
%id
| Pcty_open of open_description * class_type
let open M in CT
and class_signature = Parsetree.class_signature = {
pcsig_self : core_type;
pcsig_fields : class_type_field list;
}
Values of type class_signature
represents:
object('selfpat) ... end
object ... end
when pcsig_self
is Ptyp_any
and class_type_field = Parsetree.class_type_field = {
pctf_desc : class_type_field_desc;
pctf_loc : Location.t;
pctf_attributes : attributes;
... [\@\@id1] [\@\@id2]
}
and class_type_field_desc = Parsetree.class_type_field_desc =
| Pctf_inherit of class_type
inherit CT
| Pctf_val of Asttypes.label Asttypes.loc
* Asttypes.mutable_flag
* Asttypes.virtual_flag
* core_type
val x: T
| Pctf_method of Asttypes.label Asttypes.loc
* Asttypes.private_flag
* Asttypes.virtual_flag
* core_type
| Pctf_constraint of core_type * core_type
constraint T1 = T2
| Pctf_attribute of attribute
[\@\@\@id]
| Pctf_extension of extension
[%%id]
and 'a class_infos = 'a Parsetree.class_infos = {
pci_virt : Asttypes.virtual_flag;
pci_params : (core_type * (Asttypes.variance * Asttypes.injectivity)) list;
pci_name : string Asttypes.loc;
pci_expr : 'a;
pci_loc : Location.t;
pci_attributes : attributes;
... [\@\@id1] [\@\@id2]
}
Values of type class_expr class_infos
represents:
class c = ...
class ['a1,...,'an] c = ...
class virtual c = ...
They are also used for "class type" declaration.
and class_description = class_type class_infos
and class_type_declaration = class_type class_infos
and class_expr = Parsetree.class_expr = {
pcl_desc : class_expr_desc;
pcl_loc : Location.t;
pcl_attributes : attributes;
... [\@id1] [\@id2]
}
and class_expr_desc = Parsetree.class_expr_desc =
| Pcl_constr of Longident.t Asttypes.loc * core_type list
c
and ['a1, ..., 'an] c
| Pcl_structure of class_structure
object ... end
| Pcl_fun of Asttypes.arg_label * expression option * pattern * class_expr
Pcl_fun(lbl, exp0, P, CE)
represents:
fun P -> CE
when lbl
is Nolabel
and exp0
is None
,fun ~l:P -> CE
when lbl
is Labelled l
and exp0
is None
,fun ?l:P -> CE
when lbl
is Optional l
and exp0
is None
,fun ?l:(P = E0) -> CE
when lbl
is Optional l
and exp0
is Some E0
.| Pcl_apply of class_expr * (Asttypes.arg_label * expression) list
Pcl_apply(CE, [(l1,E1) ; ... ; (ln,En)])
represents CE ~l1:E1 ... ~ln:En
. li
can be empty (non labeled argument) or start with ?
(optional argument).
Invariant: n > 0
| Pcl_let of Asttypes.rec_flag * value_binding list * class_expr
Pcl_let(rec, [(P1, E1); ... ; (Pn, En)], CE)
represents:
let P1 = E1 and ... and Pn = EN in CE
when rec
is Nonrecursive
,let rec P1 = E1 and ... and Pn = EN in CE
when rec
is Recursive
.| Pcl_constraint of class_expr * class_type
(CE : CT)
| Pcl_extension of extension
[%id]
| Pcl_open of open_description * class_expr
let open M in CE
and class_structure = Parsetree.class_structure = {
pcstr_self : pattern;
pcstr_fields : class_field list;
}
Values of type class_structure
represents:
object(selfpat) ... end
object ... end
when pcstr_self
is Ppat_any
and class_field = Parsetree.class_field = {
pcf_desc : class_field_desc;
pcf_loc : Location.t;
pcf_attributes : attributes;
... [\@\@id1] [\@\@id2]
}
and class_field_desc = Parsetree.class_field_desc =
| Pcf_inherit of Asttypes.override_flag * class_expr * string Asttypes.loc option
| Pcf_val of Asttypes.label Asttypes.loc
* Asttypes.mutable_flag
* class_field_kind
Pcf_val(x,flag, kind)
represents:
val x = E
when flag
is Immutable
and kind
is Cfk_concrete(Fresh, E)
val virtual x: T
when flag
is Immutable
and kind
is Cfk_virtual(T)
val mutable x = E
when flag
is Mutable
and kind
is Cfk_concrete(Fresh, E)
val mutable virtual x: T
when flag
is Mutable
and kind
is Cfk_virtual(T)
| Pcf_method of Asttypes.label Asttypes.loc
* Asttypes.private_flag
* class_field_kind
| Pcf_constraint of core_type * core_type
constraint T1 = T2
| Pcf_initializer of expression
initializer E
| Pcf_attribute of attribute
[\@\@\@id]
| Pcf_extension of extension
[%%id]
and class_field_kind = Parsetree.class_field_kind =
| Cfk_virtual of core_type
| Cfk_concrete of Asttypes.override_flag * expression
and class_declaration = class_expr class_infos
and module_type = Parsetree.module_type = {
pmty_desc : module_type_desc;
pmty_loc : Location.t;
pmty_attributes : attributes;
... [\@id1] [\@id2]
}
and module_type_desc = Parsetree.module_type_desc =
| Pmty_ident of Longident.t Asttypes.loc
Pmty_ident(S)
represents S
| Pmty_signature of signature
sig ... end
| Pmty_functor of functor_parameter * module_type
functor(X : MT1) -> MT2
| Pmty_with of module_type * with_constraint list
MT with ...
| Pmty_typeof of module_expr
module type of ME
| Pmty_extension of extension
[%id]
| Pmty_alias of Longident.t Asttypes.loc
(module M)
and functor_parameter = Parsetree.functor_parameter =
| Unit
()
| Named of string option Asttypes.loc * module_type
Named(name, MT)
represents:
(X : MT)
when name
is Some X
,(_ : MT)
when name
is None
and signature = signature_item list
and signature_item = Parsetree.signature_item = {
psig_desc : signature_item_desc;
psig_loc : Location.t;
}
and signature_item_desc = Parsetree.signature_item_desc =
| Psig_value of value_description
val x: T
external x: T = "s1" ... "sn"
| Psig_type of Asttypes.rec_flag * type_declaration list
type t1 = ... and ... and tn = ...
| Psig_typesubst of type_declaration list
type t1 := ... and ... and tn := ...
| Psig_typext of type_extension
type t1 += ...
| Psig_exception of type_exception
exception C of T
| Psig_module of module_declaration
module X = M
and module X : MT
| Psig_modsubst of module_substitution
module X := M
| Psig_recmodule of module_declaration list
module rec X1 : MT1 and ... and Xn : MTn
| Psig_modtype of module_type_declaration
module type S = MT
and module type S
| Psig_modtypesubst of module_type_declaration
module type S := ...
| Psig_open of open_description
open X
| Psig_include of include_description
include MT
| Psig_class of class_description list
class c1 : ... and ... and cn : ...
| Psig_class_type of class_type_declaration list
class type ct1 = ... and ... and ctn = ...
| Psig_attribute of attribute
[\@\@\@id]
| Psig_extension of extension * attributes
[%%id]
and module_declaration = Parsetree.module_declaration = {
pmd_name : string option Asttypes.loc;
pmd_type : module_type;
pmd_attributes : attributes;
... [\@\@id1] [\@\@id2]
pmd_loc : Location.t;
}
Values of type module_declaration
represents S : MT
and module_substitution = Parsetree.module_substitution = {
pms_name : string Asttypes.loc;
pms_manifest : Longident.t Asttypes.loc;
pms_attributes : attributes;
... [\@\@id1] [\@\@id2]
pms_loc : Location.t;
}
Values of type module_substitution
represents S := M
and module_type_declaration = Parsetree.module_type_declaration = {
pmtd_name : string Asttypes.loc;
pmtd_type : module_type option;
pmtd_attributes : attributes;
... [\@\@id1] [\@\@id2]
pmtd_loc : Location.t;
}
Values of type module_type_declaration
represents:
S = MT
,S
for abstract module type declaration, when pmtd_type
is None
.and 'a open_infos = 'a Parsetree.open_infos = {
popen_expr : 'a;
popen_override : Asttypes.override_flag;
popen_loc : Location.t;
popen_attributes : attributes;
}
Values of type 'a open_infos
represents:
open! X
when popen_override
is Override
(silences the "used identifier shadowing" warning)open X
when popen_override
is Fresh
and open_description = Longident.t Asttypes.loc open_infos
Values of type open_description
represents:
open M.N
open M(N).O
and open_declaration = module_expr open_infos
Values of type open_declaration
represents:
open M.N
open M(N).O
open struct ... end
and 'a include_infos = 'a Parsetree.include_infos = {
pincl_mod : 'a;
pincl_loc : Location.t;
pincl_attributes : attributes;
}
and include_description = module_type include_infos
Values of type include_description
represents include MT
and include_declaration = module_expr include_infos
Values of type include_declaration
represents include ME
and with_constraint = Parsetree.with_constraint =
| Pwith_type of Longident.t Asttypes.loc * type_declaration
with type X.t = ...
Note: the last component of the longident must match the name of the type_declaration.
*)| Pwith_module of Longident.t Asttypes.loc * Longident.t Asttypes.loc
with module X.Y = Z
| Pwith_modtype of Longident.t Asttypes.loc * module_type
with module type X.Y = Z
| Pwith_modtypesubst of Longident.t Asttypes.loc * module_type
with module type X.Y := sig end
| Pwith_typesubst of Longident.t Asttypes.loc * type_declaration
with type X.t := ..., same format as [Pwith_type]
| Pwith_modsubst of Longident.t Asttypes.loc * Longident.t Asttypes.loc
with module X.Y := Z
and module_expr = Parsetree.module_expr = {
pmod_desc : module_expr_desc;
pmod_loc : Location.t;
pmod_attributes : attributes;
... [\@id1] [\@id2]
}
and module_expr_desc = Parsetree.module_expr_desc =
| Pmod_ident of Longident.t Asttypes.loc
X
| Pmod_structure of structure
struct ... end
| Pmod_functor of functor_parameter * module_expr
functor(X : MT1) -> ME
| Pmod_apply of module_expr * module_expr
ME1(ME2)
| Pmod_constraint of module_expr * module_type
(ME : MT)
| Pmod_unpack of expression
(val E)
| Pmod_extension of extension
[%id]
and structure = structure_item list
and structure_item = Parsetree.structure_item = {
pstr_desc : structure_item_desc;
pstr_loc : Location.t;
}
and structure_item_desc = Parsetree.structure_item_desc =
| Pstr_eval of expression * attributes
E
| Pstr_value of Asttypes.rec_flag * value_binding list
Pstr_value(rec, [(P1, E1 ; ... ; (Pn, En))])
represents:
let P1 = E1 and ... and Pn = EN
when rec
is Nonrecursive
,let rec P1 = E1 and ... and Pn = EN
when rec
is Recursive
.| Pstr_primitive of value_description
val x: T
external x: T = "s1" ... "sn"
| Pstr_type of Asttypes.rec_flag * type_declaration list
type t1 = ... and ... and tn = ...
| Pstr_typext of type_extension
type t1 += ...
| Pstr_exception of type_exception
exception C of T
exception C = M.X
| Pstr_module of module_binding
module X = ME
| Pstr_recmodule of module_binding list
module rec X1 = ME1 and ... and Xn = MEn
| Pstr_modtype of module_type_declaration
module type S = MT
| Pstr_open of open_declaration
open X
| Pstr_class of class_declaration list
class c1 = ... and ... and cn = ...
| Pstr_class_type of class_type_declaration list
class type ct1 = ... and ... and ctn = ...
| Pstr_include of include_declaration
include ME
| Pstr_attribute of attribute
[\@\@\@id]
| Pstr_extension of extension * attributes
[%%id]
and value_binding = Parsetree.value_binding = {
pvb_pat : pattern;
pvb_expr : expression;
pvb_attributes : attributes;
pvb_loc : Location.t;
}
and module_binding = Parsetree.module_binding = {
pmb_name : string option Asttypes.loc;
pmb_expr : module_expr;
pmb_attributes : attributes;
pmb_loc : Location.t;
}
Values of type module_binding
represents module X = ME
type toplevel_phrase = Parsetree.toplevel_phrase =
| Ptop_def of structure
| Ptop_dir of toplevel_directive
#use
, #load
...
and toplevel_directive = Parsetree.toplevel_directive = {
pdir_name : string Asttypes.loc;
pdir_arg : directive_argument option;
pdir_loc : Location.t;
}
and directive_argument = Parsetree.directive_argument = {
pdira_desc : directive_argument_desc;
pdira_loc : Location.t;
}
and directive_argument_desc = Parsetree.directive_argument_desc =
| Pdir_string of string
| Pdir_int of string * char option
| Pdir_ident of Longident.t
| Pdir_bool of bool