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feat(jsii): enforce enum names to be UPPER_CASE #541

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merged 18 commits into from
Jun 20, 2019

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shivlaks
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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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No..... enum member names, not type names :-(

@@ -63,13 +64,26 @@ function _defaultValidations(): ValidationFunction[] {

function _typeNamesMustUsePascalCase(_: Validator, assembly: spec.Assembly, diagnostic: DiagnosticEmitter) {
for (const type of _allTypes(assembly)) {
if (spec.isEnumType(type)) { continue; }
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The enum /type/ should be pascal case, just members should be capital

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ah i see, totally misread that - so enum values then?
i'll get on it.

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Enum members:

export enum MyEnum {
  MEMBER_NUMBER_ONE,
  MEMBER_FOO,
  MEMBER_XOO
}

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updated

@@ -1,4 +1,4 @@
///!MATCH_ERROR: Type names must use PascalCase: My_Enum
///!MATCH_ERROR: Enum names must use TRUMP_CASE: My_Enum
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Nope! Just the member names should be TRUMP_CASE

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I think my Java disposition's are showing - enum names vs enum values. I'll get it updated!

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Need to make a decision about python and .NET. Not sure what's the idiomatic way to express enum members in those languages.

Assert.Equal(EnumFromScopedModule.Value1, obj.LoadFoo());
obj.SaveFoo(EnumFromScopedModule.Value2);
Assert.Equal(EnumFromScopedModule.Value2, obj.Foo);
Assert.Equal(EnumFromScopedModule.VALUE2, obj.Foo);
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wait... what's the convention for .NET? Do we want .NET to also use all-caps?
Same question for Python.... @garnaat is it idiomatic to use all caps for enum values?

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  • .NET seems to prefer PascalCase.
  • Python looks like ALL_CAPS are good.

So basically, the .NET code generator needs to covert the case for .NET.

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that's a good question. I thought we wanted to avoid dropping into the language specific mangling... let me check.

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I think Pascal casing for both names and values are the idiomatic thing for .NET

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No. We wanted to normalize the typescript/jsii source to CAPITALS but then, jsii is all about language-specific idiomacy.

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Sounds good. I'll make the changes to the generation of .NET so we can change enum values into PascalCase.

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we decided we would make the changes for .NET generation to use enum members in PascalCase outside of this PR.

Should I create an issue for it before resolving this conversation?

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Sure, "right click, create issue"

@shivlaks shivlaks marked this pull request as ready for review June 20, 2019 19:46
@shivlaks shivlaks requested review from costleya and a team as code owners June 20, 2019 19:46
packages/jsii/lib/validator.ts Outdated Show resolved Hide resolved
@shivlaks shivlaks merged commit c88080d into master Jun 20, 2019
@shivlaks shivlaks deleted the shivlaks/upper-case-all-enums branch June 28, 2019 06:11
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2 participants