@bufbuild/protoc-gen-es
Version:
Protocol Buffers code generator for ECMAScript
207 lines (206 loc) • 7.19 kB
JavaScript
"use strict";
// Copyright 2021-2025 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.fieldTypeScriptType = fieldTypeScriptType;
exports.fieldJsonType = fieldJsonType;
exports.functionCall = functionCall;
const protobuf_1 = require("@bufbuild/protobuf");
const codegenv1_1 = require("@bufbuild/protobuf/codegenv1");
const wkt_1 = require("@bufbuild/protobuf/wkt");
function fieldTypeScriptType(field, imports) {
const typing = [];
let optional = false;
switch (field.fieldKind) {
case "scalar":
typing.push((0, codegenv1_1.scalarTypeScriptType)(field.scalar, field.longAsString));
optional = field.proto.proto3Optional;
break;
case "message": {
typing.push(messageFieldTypeScriptType(field, imports));
optional = true;
break;
}
case "enum":
typing.push({
kind: "es_shape_ref",
desc: field.enum,
});
optional = field.proto.proto3Optional;
break;
case "list":
optional = false;
switch (field.listKind) {
case "enum":
typing.push({
kind: "es_shape_ref",
desc: field.enum,
}, "[]");
break;
case "scalar":
typing.push((0, codegenv1_1.scalarTypeScriptType)(field.scalar, field.longAsString), "[]");
break;
case "message": {
typing.push(messageFieldTypeScriptType(field, imports), "[]");
break;
}
}
break;
case "map": {
let keyType;
switch (field.mapKey) {
case protobuf_1.ScalarType.INT32:
case protobuf_1.ScalarType.FIXED32:
case protobuf_1.ScalarType.UINT32:
case protobuf_1.ScalarType.SFIXED32:
case protobuf_1.ScalarType.SINT32:
keyType = "number";
break;
default:
keyType = "string";
break;
}
let valueType;
switch (field.mapKind) {
case "scalar":
valueType = (0, codegenv1_1.scalarTypeScriptType)(field.scalar, false);
break;
case "message":
valueType = messageFieldTypeScriptType(field, imports);
break;
case "enum":
valueType = {
kind: "es_shape_ref",
desc: field.enum,
};
break;
}
typing.push("{ [key: ", keyType, "]: ", valueType, " }");
optional = false;
break;
}
}
return { typing, optional };
}
function messageFieldTypeScriptType(field, imports) {
var _a;
if ((0, wkt_1.isWrapperDesc)(field.message) &&
!field.oneof &&
field.fieldKind == "message") {
const baseType = field.message.fields[0].scalar;
return (0, codegenv1_1.scalarTypeScriptType)(baseType, false);
}
if (field.message.typeName == wkt_1.StructSchema.typeName &&
((_a = field.parent) === null || _a === void 0 ? void 0 : _a.typeName) != wkt_1.ValueSchema.typeName) {
return imports.JsonObject;
}
return {
kind: "es_shape_ref",
desc: field.message,
};
}
function fieldJsonType(field) {
switch (field.fieldKind) {
case "scalar":
return (0, codegenv1_1.scalarJsonType)(field.scalar);
case "message":
return {
kind: "es_json_type_ref",
desc: field.message,
};
case "enum":
return {
kind: "es_json_type_ref",
desc: field.enum,
};
case "list":
switch (field.listKind) {
case "enum":
return [
{
kind: "es_json_type_ref",
desc: field.enum,
},
"[]",
];
case "scalar": {
const t = (0, codegenv1_1.scalarJsonType)(field.scalar);
if (t.includes("|")) {
return ["(", t, ")[]"];
}
return [t, "[]"];
}
case "message":
return [
{
kind: "es_json_type_ref",
desc: field.message,
},
"[]",
];
}
break;
case "map": {
let keyType;
switch (field.mapKey) {
case protobuf_1.ScalarType.INT32:
case protobuf_1.ScalarType.FIXED32:
case protobuf_1.ScalarType.UINT32:
case protobuf_1.ScalarType.SFIXED32:
case protobuf_1.ScalarType.SINT32:
keyType = "number";
break;
default:
keyType = "string";
break;
}
let valueType;
switch (field.mapKind) {
case "scalar":
valueType = (0, codegenv1_1.scalarJsonType)(field.scalar);
break;
case "message":
valueType = {
kind: "es_json_type_ref",
desc: field.message,
};
break;
case "enum":
valueType = {
kind: "es_json_type_ref",
desc: field.enum,
};
break;
}
return ["{ [key: ", keyType, "]: ", valueType, " }"];
}
}
}
function functionCall(fn, args, typeParams) {
let tp = [];
if (typeParams !== undefined && typeParams.length > 0) {
tp = ["<", commaSeparate(typeParams), ">"];
}
return [fn, ...tp, "(", commaSeparate(args), ")"];
}
function commaSeparate(elements) {
const r = [];
for (let i = 0; i < elements.length; i++) {
r.push(elements[i]);
if (i < elements.length - 1) {
r.push(", ");
}
}
return r;
}