package ppxlib
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sha256=2e223837e7cecc3bc84a432432c0a72f4e1d5be9165c9c33772f156db85db0b3
sha512=78c62c6de7a641b950de9b4b744841c8823918c545046693e291077adfcd069a812094c11d8d51f792c0b5f340307d38f452ff0a92520df63ed17a3ca9922e2e
doc/ppxlib/Ppxlib/Extension/index.html
Module Ppxlib.ExtensionSource
Declare extenders to rewrite extension nodes.
Type of declared extensions.
val declare :
string ->
'context Context.t ->
(Astlib.Ast_502.Parsetree.payload, 'a, 'context) Ast_pattern.t ->
(loc:Location.t -> path:string -> 'a) ->
tdeclare name context pattern expander declares the extension names name for context.
expander is responsible for producing the code to replace the extension in the AST. It receives as argument:
loc: the location of the enclosing node. For instance for expression it is thepexp_locfieldpath: the current module path
val declare_with_path_arg :
string ->
'context Context.t ->
(Astlib.Ast_502.Parsetree.payload, 'a, 'context) Ast_pattern.t ->
(loc:Location.t ->
path:string ->
arg:Longident.t Ppxlib_ast.Asttypes.loc option ->
'a) ->
tSame as declare except that the extension name takes an additional path argument. The path is the part of the name that start with a capitalized component. For instance in the following, the extension "map" would receive the path argument Foo.Bar:
let%map.Foo.Bar x = 1 in
...val declare_inline :
string ->
'context Context.t ->
(Astlib.Ast_502.Parsetree.payload, 'a, 'context list) Ast_pattern.t ->
(loc:Location.t -> path:string -> 'a) ->
tInline the result of the expansion into its parent. Only works for these contexts:
class_fieldclass_type_fieldsignature_itemstructure_item
val declare_inline_with_path_arg :
string ->
'context Context.t ->
(Astlib.Ast_502.Parsetree.payload, 'a, 'context list) Ast_pattern.t ->
(loc:Location.t ->
path:string ->
arg:Longident.t Ppxlib_ast.Asttypes.loc option ->
'a) ->
tThis module is used to implement Context_free.map_top_down
Given a context and a list of extension expander, returns all the ones that are for this context.
This module allows to declare extensions that do not produce a value of the context type. This is typically useful for extensions point that depends on more things from the context than the path and location.