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oaspec
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0.1.3
Generate Gleam code from OpenAPI 3.x specifications
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src/oaspec@generate.erl
-module(oaspec@generate).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/oaspec/generate.gleam").
-export([generate_all_files/1, generate/2]).
-export_type([generation_summary/0, generate_error/0]).
-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.
-type generation_summary() :: {generation_summary,
list(oaspec@codegen@context:generated_file()),
binary(),
list(oaspec@codegen@validate:validation_error())}.
-type generate_error() :: {validation_errors,
list(oaspec@codegen@validate:validation_error())}.
-file("src/oaspec/generate.gleam", 77).
?DOC(" Generate shared files (types, decoders, encoders, middleware, guards).\n").
-spec generate_shared(oaspec@codegen@context:context()) -> list(oaspec@codegen@context:generated_file()).
generate_shared(Ctx) ->
Type_files = oaspec@codegen@types:generate(Ctx),
Decoder_files = oaspec@codegen@decoders:generate(Ctx),
Middleware_files = oaspec@codegen@middleware:generate(Ctx),
Guard_files = oaspec@codegen@guards:generate(Ctx),
lists:append([Type_files, Decoder_files, Middleware_files, Guard_files]).
-file("src/oaspec/generate.gleam", 63).
?DOC(" Pure file generation: produce all GeneratedFile values without any IO.\n").
-spec generate_all_files(oaspec@codegen@context:context()) -> list(oaspec@codegen@context:generated_file()).
generate_all_files(Ctx) ->
Shared = generate_shared(Ctx),
Server_files = case erlang:element(6, erlang:element(3, Ctx)) of
server ->
oaspec@codegen@server:generate(Ctx);
both ->
oaspec@codegen@server:generate(Ctx);
client ->
[]
end,
Client_files = case erlang:element(6, erlang:element(3, Ctx)) of
client ->
oaspec@codegen@client:generate(Ctx);
both ->
oaspec@codegen@client:generate(Ctx);
server ->
[]
end,
lists:append([Shared, Server_files, Client_files]).
-file("src/oaspec/generate.gleam", 32).
?DOC(
" Pure generation pipeline: hoist → dedup → validate → generate files.\n"
" Takes an already-parsed spec and config; returns generated files or errors.\n"
" Does not perform IO — callers handle writing files and printing output.\n"
).
-spec generate(oaspec@openapi@spec:open_api_spec(), oaspec@config:config()) -> {ok,
generation_summary()} |
{error, generate_error()}.
generate(Spec, Cfg) ->
Spec_title = <<<<(erlang:element(2, erlang:element(3, Spec)))/binary,
" v"/utf8>>/binary,
(erlang:element(4, erlang:element(3, Spec)))/binary>>,
Spec@1 = oaspec@openapi@hoist:hoist(Spec),
Spec@2 = oaspec@openapi@dedup:dedup(Spec@1),
Ctx = oaspec@codegen@context:new(Spec@2, Cfg),
Validation_issues = begin
_pipe = oaspec@codegen@validate:validate(Ctx),
oaspec@codegen@validate:filter_by_mode(_pipe, erlang:element(6, Cfg))
end,
Blocking_errors = oaspec@codegen@validate:errors_only(Validation_issues),
Warnings = oaspec@codegen@validate:warnings_only(Validation_issues),
case gleam@list:is_empty(Blocking_errors) of
false ->
{error, {validation_errors, Blocking_errors}};
true ->
Files = generate_all_files(Ctx),
{ok, {generation_summary, Files, Spec_title, Warnings}}
end.