Module Parsetree

Abstract syntax tree produced by parsing

Warning: this module is unstable and part of compiler-libs.

type constant =
| Pconst_integer of string * char option
| Pconst_char of char
| Pconst_string of string * string option
| Pconst_float of string * char option

Extension points

type attribute = {
attr_name : string Asttypes.loc;
attr_payload : payload;
attr_loc : Location.t;
}
and extension = string Asttypes.loc * payload
and attributes = attribute list
and payload =
| PStr of structure
| PSig of signature
| PTyp of core_type
| PPat of pattern * expression option

Core language

and core_type = {
ptyp_desc : core_type_desc;
ptyp_loc : Location.t;
ptyp_loc_stack : Location.t list;
ptyp_attributes : attributes;
}
and core_type_desc =
| Ptyp_any
| Ptyp_var of string
| Ptyp_arrow of Asttypes.arg_label * core_type * core_type
| Ptyp_tuple of core_type list
| Ptyp_constr of Longident.t Asttypes.loc * core_type list
| Ptyp_object of object_field list * Asttypes.closed_flag
| Ptyp_class of Longident.t Asttypes.loc * core_type list
| Ptyp_alias of core_type * string
| Ptyp_variant of row_field list * Asttypes.closed_flag * Asttypes.label list option
| Ptyp_poly of string Asttypes.loc list * core_type
| Ptyp_package of package_type
| Ptyp_extension of extension
and package_type = Longident.t Asttypes.loc * (Longident.t Asttypes.loc * core_type) list
and row_field = {
prf_desc : row_field_desc;
prf_loc : Location.t;
prf_attributes : attributes;
}
and row_field_desc =
| Rtag of Asttypes.label Asttypes.loc * bool * core_type list
| Rinherit of core_type
and object_field = {
pof_desc : object_field_desc;
pof_loc : Location.t;
pof_attributes : attributes;
}
and object_field_desc =
| Otag of Asttypes.label Asttypes.loc * core_type
| Oinherit of core_type
and pattern = {
ppat_desc : pattern_desc;
ppat_loc : Location.t;
ppat_loc_stack : Location.t list;
ppat_attributes : attributes;
}
and pattern_desc =
| Ppat_any
| Ppat_var of string Asttypes.loc
| Ppat_alias of pattern * string Asttypes.loc
| Ppat_constant of constant
| Ppat_interval of constant * constant
| Ppat_tuple of pattern list
| Ppat_construct of Longident.t Asttypes.loc * pattern option
| Ppat_variant of Asttypes.label * pattern option
| Ppat_record of (Longident.t Asttypes.loc * pattern) list * Asttypes.closed_flag
| Ppat_array of pattern list
| Ppat_or of pattern * pattern
| Ppat_constraint of pattern * core_type
| Ppat_type of Longident.t Asttypes.loc
| Ppat_lazy of pattern
| Ppat_unpack of string Asttypes.loc
| Ppat_exception of pattern
| Ppat_extension of extension
| Ppat_open of Longident.t Asttypes.loc * pattern
and expression = {
pexp_desc : expression_desc;
pexp_loc : Location.t;
pexp_loc_stack : Location.t list;
pexp_attributes : attributes;
}
and expression_desc =
| Pexp_ident of Longident.t Asttypes.loc
| Pexp_constant of constant
| Pexp_let of Asttypes.rec_flag * value_binding list * expression
| Pexp_function of case list
| Pexp_fun of Asttypes.arg_label * expression option * pattern * expression
| Pexp_apply of expression * (Asttypes.arg_label * expression) list
| Pexp_match of expression * case list
| Pexp_try of expression * case list
| Pexp_tuple of expression list
| Pexp_construct of Longident.t Asttypes.loc * expression option
| Pexp_variant of Asttypes.label * expression option
| Pexp_record of (Longident.t Asttypes.loc * expression) list * expression option
| Pexp_field of expression * Longident.t Asttypes.loc
| Pexp_setfield of expression * Longident.t Asttypes.loc * expression
| Pexp_array of expression list
| Pexp_ifthenelse of expression * expression * expression option
| Pexp_sequence of expression * expression
| Pexp_while of expression * expression
| Pexp_for of pattern * expression * expression * Asttypes.direction_flag * expression
| Pexp_constraint of expression * core_type
| Pexp_coerce of expression * core_type option * core_type
| Pexp_send of expression * Asttypes.label Asttypes.loc
| Pexp_new of Longident.t Asttypes.loc
| Pexp_setinstvar of Asttypes.label Asttypes.loc * expression
| Pexp_override of (Asttypes.label Asttypes.loc * expression) list
| Pexp_letmodule of string Asttypes.loc * module_expr * expression
| Pexp_letexception of extension_constructor * expression
| Pexp_assert of expression
| Pexp_lazy of expression
| Pexp_poly of expression * core_type option
| Pexp_object of class_structure
| Pexp_newtype of string Asttypes.loc * expression
| Pexp_pack of module_expr
| Pexp_open of open_declaration * expression
| Pexp_letop of {
let_ : binding_op;
ands : binding_op list;
body : expression;
}
| Pexp_extension of extension
| Pexp_unreachable
and case = {
pc_lhs : pattern;
pc_guard : expression option;
pc_rhs : expression;
}
and binding_op = {
pbop_op : string Asttypes.loc;
pbop_pat : pattern;
pbop_exp : expression;
pbop_loc : Location.t;
}
and value_description = {
pval_name : string Asttypes.loc;
pval_type : core_type;
pval_prim : string list;
pval_attributes : attributes;
pval_loc : Location.t;
}
and type_declaration = {
ptype_name : string Asttypes.loc;
ptype_params : (core_type * Asttypes.variance) list;
ptype_cstrs : (core_type * core_type * Location.t) list;
ptype_kind : type_kind;
ptype_private : Asttypes.private_flag;
ptype_manifest : core_type option;
ptype_attributes : attributes;
ptype_loc : Location.t;
}
and type_kind =
| Ptype_abstract
| Ptype_variant of constructor_declaration list
| Ptype_record of label_declaration list
| Ptype_open
and label_declaration = {
pld_name : string Asttypes.loc;
pld_mutable : Asttypes.mutable_flag;
pld_type : core_type;
pld_loc : Location.t;
pld_attributes : attributes;
}
and constructor_declaration = {
pcd_name : string Asttypes.loc;
pcd_args : constructor_arguments;
pcd_res : core_type option;
pcd_loc : Location.t;
pcd_attributes : attributes;
}
and constructor_arguments =
| Pcstr_tuple of core_type list
| Pcstr_record of label_declaration list
and type_extension = {
ptyext_path : Longident.t Asttypes.loc;
ptyext_params : (core_type * Asttypes.variance) list;
ptyext_constructors : extension_constructor list;
ptyext_private : Asttypes.private_flag;
ptyext_loc : Location.t;
ptyext_attributes : attributes;
}
and extension_constructor = {
pext_name : string Asttypes.loc;
pext_kind : extension_constructor_kind;
pext_loc : Location.t;
pext_attributes : attributes;
}
and type_exception = {
ptyexn_constructor : extension_constructor;
ptyexn_loc : Location.t;
ptyexn_attributes : attributes;
}
and extension_constructor_kind =
| Pext_decl of constructor_arguments * core_type option
| Pext_rebind of Longident.t Asttypes.loc

Class language

and class_type = {
pcty_desc : class_type_desc;
pcty_loc : Location.t;
pcty_attributes : attributes;
}
and class_type_desc =
| Pcty_constr of Longident.t Asttypes.loc * core_type list
| Pcty_signature of class_signature
| Pcty_arrow of Asttypes.arg_label * core_type * class_type
| Pcty_extension of extension
| Pcty_open of open_description * class_type
and class_signature = {
pcsig_self : core_type;
pcsig_fields : class_type_field list;
}
and class_type_field = {
pctf_desc : class_type_field_desc;
pctf_loc : Location.t;
pctf_attributes : attributes;
}
and class_type_field_desc =
| Pctf_inherit of class_type
| Pctf_val of Asttypes.label Asttypes.loc * Asttypes.mutable_flag * Asttypes.virtual_flag * core_type
| Pctf_method of Asttypes.label Asttypes.loc * Asttypes.private_flag * Asttypes.virtual_flag * core_type
| Pctf_constraint of core_type * core_type
| Pctf_attribute of attribute
| Pctf_extension of extension
and 'a class_infos = {
pci_virt : Asttypes.virtual_flag;
pci_params : (core_type * Asttypes.variance) list;
pci_name : string Asttypes.loc;
pci_expr : 'a;
pci_loc : Location.t;
pci_attributes : attributes;
}
and class_description = class_type class_infos
and class_type_declaration = class_type class_infos
and class_expr = {
pcl_desc : class_expr_desc;
pcl_loc : Location.t;
pcl_attributes : attributes;
}
and class_expr_desc =
| Pcl_constr of Longident.t Asttypes.loc * core_type list
| Pcl_structure of class_structure
| Pcl_fun of Asttypes.arg_label * expression option * pattern * class_expr
| Pcl_apply of class_expr * (Asttypes.arg_label * expression) list
| Pcl_let of Asttypes.rec_flag * value_binding list * class_expr
| Pcl_constraint of class_expr * class_type
| Pcl_extension of extension
| Pcl_open of open_description * class_expr
and class_structure = {
pcstr_self : pattern;
pcstr_fields : class_field list;
}
and class_field = {
pcf_desc : class_field_desc;
pcf_loc : Location.t;
pcf_attributes : attributes;
}
and 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_method of Asttypes.label Asttypes.loc * Asttypes.private_flag * class_field_kind
| Pcf_constraint of core_type * core_type
| Pcf_initializer of expression
| Pcf_attribute of attribute
| Pcf_extension of extension
and class_field_kind =
| Cfk_virtual of core_type
| Cfk_concrete of Asttypes.override_flag * expression
and class_declaration = class_expr class_infos

Module language

and module_type = {
pmty_desc : module_type_desc;
pmty_loc : Location.t;
pmty_attributes : attributes;
}
and module_type_desc =
| Pmty_ident of Longident.t Asttypes.loc
| Pmty_signature of signature
| Pmty_functor of string Asttypes.loc * module_type option * module_type
| Pmty_with of module_type * with_constraint list
| Pmty_typeof of module_expr
| Pmty_extension of extension
| Pmty_alias of Longident.t Asttypes.loc
and signature = signature_item list
and signature_item = {
psig_desc : signature_item_desc;
psig_loc : Location.t;
}
and signature_item_desc =
| Psig_value of value_description
| Psig_type of Asttypes.rec_flag * type_declaration list
| Psig_typesubst of type_declaration list
| Psig_typext of type_extension
| Psig_exception of type_exception
| Psig_module of module_declaration
| Psig_modsubst of module_substitution
| Psig_recmodule of module_declaration list
| Psig_modtype of module_type_declaration
| Psig_open of open_description
| Psig_include of include_description
| Psig_class of class_description list
| Psig_class_type of class_type_declaration list
| Psig_attribute of attribute
| Psig_extension of extension * attributes
and module_declaration = {
pmd_name : string Asttypes.loc;
pmd_type : module_type;
pmd_attributes : attributes;
pmd_loc : Location.t;
}
and module_substitution = {
pms_name : string Asttypes.loc;
pms_manifest : Longident.t Asttypes.loc;
pms_attributes : attributes;
pms_loc : Location.t;
}
and module_type_declaration = {
pmtd_name : string Asttypes.loc;
pmtd_type : module_type option;
pmtd_attributes : attributes;
pmtd_loc : Location.t;
}
and 'a open_infos = {
popen_expr : 'a;
popen_override : Asttypes.override_flag;
popen_loc : Location.t;
popen_attributes : attributes;
}
and open_description = Longident.t Asttypes.loc open_infos
and open_declaration = module_expr open_infos
and 'a include_infos = {
pincl_mod : 'a;
pincl_loc : Location.t;
pincl_attributes : attributes;
}
and include_description = module_type include_infos
and include_declaration = module_expr include_infos
and with_constraint =
| Pwith_type of Longident.t Asttypes.loc * type_declaration
| Pwith_module of Longident.t Asttypes.loc * Longident.t Asttypes.loc
| Pwith_typesubst of Longident.t Asttypes.loc * type_declaration
| Pwith_modsubst of Longident.t Asttypes.loc * Longident.t Asttypes.loc
and module_expr = {
pmod_desc : module_expr_desc;
pmod_loc : Location.t;
pmod_attributes : attributes;
}
and module_expr_desc =
| Pmod_ident of Longident.t Asttypes.loc
| Pmod_structure of structure
| Pmod_functor of string Asttypes.loc * module_type option * module_expr
| Pmod_apply of module_expr * module_expr
| Pmod_constraint of module_expr * module_type
| Pmod_unpack of expression
| Pmod_extension of extension
and structure = structure_item list
and structure_item = {
pstr_desc : structure_item_desc;
pstr_loc : Location.t;
}
and structure_item_desc =
| Pstr_eval of expression * attributes
| Pstr_value of Asttypes.rec_flag * value_binding list
| Pstr_primitive of value_description
| Pstr_type of Asttypes.rec_flag * type_declaration list
| Pstr_typext of type_extension
| Pstr_exception of type_exception
| Pstr_module of module_binding
| Pstr_recmodule of module_binding list
| Pstr_modtype of module_type_declaration
| Pstr_open of open_declaration
| Pstr_class of class_declaration list
| Pstr_class_type of class_type_declaration list
| Pstr_include of include_declaration
| Pstr_attribute of attribute
| Pstr_extension of extension * attributes
and value_binding = {
pvb_pat : pattern;
pvb_expr : expression;
pvb_attributes : attributes;
pvb_loc : Location.t;
}
and module_binding = {
pmb_name : string Asttypes.loc;
pmb_expr : module_expr;
pmb_attributes : attributes;
pmb_loc : Location.t;
}

Toplevel

type toplevel_phrase =
| Ptop_def of structure
| Ptop_dir of toplevel_directive
and toplevel_directive = {
pdir_name : string Asttypes.loc;
pdir_arg : directive_argument option;
pdir_loc : Location.t;
}
and directive_argument = {
pdira_desc : directive_argument_desc;
pdira_loc : Location.t;
}
and directive_argument_desc =
| Pdir_string of string
| Pdir_int of string * char option
| Pdir_ident of Longident.t
| Pdir_bool of bool