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fix: support json_name with non-alphanumeric characters for all field types #521

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Feb 21, 2022
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Binary file modified integration/simple-json-name/simple.bin
Binary file not shown.
1 change: 1 addition & 0 deletions integration/simple-json-name/simple.proto
Original file line number Diff line number Diff line change
Expand Up @@ -12,4 +12,5 @@ message Simple {
string spaces = 4 [json_name = "name with spaces"];
string dollarStart = 5 [json_name = "$dollar"];
string dollarEnd = 6 [json_name = "dollar$"];
repeated string hyphenList = 7 [json_name = "hyphen-list"];
}
25 changes: 24 additions & 1 deletion integration/simple-json-name/simple.ts
Original file line number Diff line number Diff line change
Expand Up @@ -13,10 +13,20 @@ export interface Simple {
spaces: string;
dollarStart: string;
dollarEnd: string;
hyphenList: string[];
}

function createBaseSimple(): Simple {
return { name: '', age: undefined, createdAt: undefined, hyphen: '', spaces: '', dollarStart: '', dollarEnd: '' };
return {
name: '',
age: undefined,
createdAt: undefined,
hyphen: '',
spaces: '',
dollarStart: '',
dollarEnd: '',
hyphenList: [],
};
}

export const Simple = {
Expand All @@ -42,6 +52,9 @@ export const Simple = {
if (message.dollarEnd !== '') {
writer.uint32(50).string(message.dollarEnd);
}
for (const v of message.hyphenList) {
writer.uint32(58).string(v!);
}
return writer;
},

Expand Down Expand Up @@ -73,6 +86,9 @@ export const Simple = {
case 6:
message.dollarEnd = reader.string();
break;
case 7:
message.hyphenList.push(reader.string());
break;
default:
reader.skipType(tag & 7);
break;
Expand All @@ -90,6 +106,7 @@ export const Simple = {
spaces: isSet(object['name with spaces']) ? String(object['name with spaces']) : '',
dollarStart: isSet(object.$dollar) ? String(object.$dollar) : '',
dollarEnd: isSet(object.dollar$) ? String(object.dollar$) : '',
hyphenList: Array.isArray(object?.['hyphen-list']) ? object['hyphen-list'].map((e: any) => String(e)) : [],
};
},

Expand All @@ -102,6 +119,11 @@ export const Simple = {
message.spaces !== undefined && (obj['name with spaces'] = message.spaces);
message.dollarStart !== undefined && (obj.$dollar = message.dollarStart);
message.dollarEnd !== undefined && (obj.dollar$ = message.dollarEnd);
if (message.hyphenList) {
obj['hyphen-list'] = message.hyphenList.map((e) => e);
} else {
obj['hyphen-list'] = [];
}
return obj;
},

Expand All @@ -114,6 +136,7 @@ export const Simple = {
message.spaces = object.spaces ?? '';
message.dollarStart = object.dollarStart ?? '';
message.dollarEnd = object.dollarEnd ?? '';
message.hyphenList = object.hyphenList?.map((e) => e) || [];
return message;
},
};
Expand Down
15 changes: 8 additions & 7 deletions src/main.ts
Original file line number Diff line number Diff line change
Expand Up @@ -1117,6 +1117,7 @@ function generateFromJson(ctx: Context, fullName: string, messageDesc: Descripto
const fieldName = maybeSnakeToCamel(field.name, options);
const jsonName = getFieldJsonName(field, options);
const jsonProperty = getPropertyAccessor('object', jsonName);
const jsonPropertyOptional = getPropertyAccessor('object', jsonName, true);

// get code that extracts value from incoming object
const readSnippet = (from: string): Code => {
Expand Down Expand Up @@ -1224,11 +1225,11 @@ function generateFromJson(ctx: Context, fullName: string, messageDesc: Descripto
} else {
const readValueSnippet = readSnippet('e');
if (readValueSnippet.toString() === code`e`.toString()) {
chunks.push(code`${fieldName}: Array.isArray(object?.${jsonName}) ? [...${jsonProperty}] : [],`);
chunks.push(code`${fieldName}: Array.isArray(${jsonPropertyOptional}) ? [...${jsonProperty}] : [],`);
} else {
// Explicit `any` type required to make TS with noImplicitAny happy. `object` is also `any` here.
chunks.push(code`
${fieldName}: Array.isArray(object?.${jsonName}) ? ${jsonProperty}.map((e: any) => ${readValueSnippet}): [],
${fieldName}: Array.isArray(${jsonPropertyOptional}) ? ${jsonProperty}.map((e: any) => ${readValueSnippet}): [],
`);
}
}
Expand All @@ -1250,7 +1251,7 @@ function generateFromJson(ctx: Context, fullName: string, messageDesc: Descripto
chunks.push(code`undefined,`);
}
} else if (isAnyValueType(field)) {
chunks.push(code`${fieldName}: ${ctx.utils.isSet}(object?.${jsonName})
chunks.push(code`${fieldName}: ${ctx.utils.isSet}(${jsonPropertyOptional})
? ${readSnippet(`${jsonProperty}`)}
: undefined,
`);
Expand Down Expand Up @@ -1365,20 +1366,20 @@ function generateToJson(ctx: Context, fullName: string, messageDesc: DescriptorP
if (isMapType(ctx, messageDesc, field)) {
// Maps might need their values transformed, i.e. bytes --> base64
chunks.push(code`
obj.${jsonName} = {};
${jsonProperty} = {};
if (message.${fieldName}) {
Object.entries(message.${fieldName}).forEach(([k, v]) => {
obj.${jsonName}[k] = ${readSnippet('v')};
${jsonProperty}[k] = ${readSnippet('v')};
});
}
`);
} else if (isRepeated(field)) {
// Arrays might need their elements transformed
chunks.push(code`
if (message.${fieldName}) {
obj.${jsonName} = message.${fieldName}.map(e => ${readSnippet('e')});
${jsonProperty} = message.${fieldName}.map(e => ${readSnippet('e')});
} else {
obj.${jsonName} = [];
${jsonProperty} = [];
}
`);
} else if (isWithinOneOfThatShouldBeUnion(options, field)) {
Expand Down
7 changes: 4 additions & 3 deletions src/utils.ts
Original file line number Diff line number Diff line change
Expand Up @@ -189,12 +189,13 @@ export function getFieldJsonName(field: FieldDescriptorProto, options: Options):
* For simplicity, we don't match the ECMA 5/6 rules for valid identifiers exactly, and return array syntax liberally.
* @param objectName
* @param propertyName
* @param optional
*/
export function getPropertyAccessor(objectName: string, propertyName: string): string {
export function getPropertyAccessor(objectName: string, propertyName: string, optional: boolean = false): string {
let validIdentifier = /^[a-zA-Z_$][\w$]*$/;
return validIdentifier.test(propertyName)
? `${objectName}.${propertyName}`
: `${objectName}[${JSON.stringify(propertyName)}]`;
? `${objectName}${optional ? '?' : ''}.${propertyName}`
: `${objectName}${optional ? '?.' : ''}[${JSON.stringify(propertyName)}]`;
}

export function impProto(options: Options, module: string, type: string): Import {
Expand Down