81 lines
2.4 KiB
OCaml
81 lines
2.4 KiB
OCaml
open Trace
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open Simple_utils.Display
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module CST = Cst.Cameligo
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type parser_error = [
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| `Parser_generic of string Region.reg
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| `Parser_wrong_function_arguments of CST.expr
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| `Parser_invalid_wild of CST.expr
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]
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let stage = "parser"
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let generic reg = `Parser_generic reg
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let wrong_function_arguments expr = `Parser_wrong_function_arguments expr
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let invalid_wild expr = `Parser_invalid_wild expr
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let wrong_function_msg =
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"It looks like you are defining a function, \
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however we do not\n\
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understand the parameters declaration.\n\
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Examples of valid functions:\n\
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let x = (a: string, b: int) : int => 3;\n\
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let tuple = ((a, b): (int, int)) => a + b; \n\
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let x = (a: string) : string => \"Hello, \" ++ a;\n"
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let wild_pattern_msg =
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"It looks like you are using a wild pattern where it cannot be used"
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let error_ppformat : display_format:string display_format ->
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Format.formatter -> parser_error -> unit =
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fun ~display_format f a ->
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match display_format with
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| Human_readable | Dev -> (
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match a with
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| `Parser_generic reg ->
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Format.pp_print_string f reg.Region.value ;
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| `Parser_wrong_function_arguments expr ->
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let loc = Format.asprintf "%a"
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Location.pp_lift @@ CST.expr_to_region expr in
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let s = Format.asprintf "%s\n%s" loc wrong_function_msg in
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Format.pp_print_string f s ;
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| `Parser_invalid_wild expr ->
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let loc = Format.asprintf "%a"
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Location.pp_lift @@ CST.expr_to_region expr in
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let s = Format.asprintf "%s\n%s" loc wild_pattern_msg in
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Format.pp_print_string f s ;
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)
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let error_jsonformat : parser_error -> J.t = fun a ->
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let json_error ~stage ~content =
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`Assoc [
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("status", `String "error") ;
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("stage", `String stage) ;
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("content", content )]
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in
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match a with
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| `Parser_generic reg ->
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let content = `Assoc [
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("message", `String reg.Region.value); ]
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in
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json_error ~stage ~content
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| `Parser_wrong_function_arguments expr ->
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let loc = Format.asprintf "%a" Location.pp_lift @@
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CST.expr_to_region expr in
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let content = `Assoc [
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("message", `String wrong_function_msg);
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("location", `String loc); ]
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in
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json_error ~stage ~content
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| `Parser_invalid_wild expr ->
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let loc = Format.asprintf "%a" Location.pp_lift @@
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CST.expr_to_region expr in
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let content = `Assoc [
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("message", `String wild_pattern_msg);
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("location", `String loc); ]
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in
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json_error ~stage ~content
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