tpl: Add reflection functions #2427
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I'll update the docs once this is reviewed and before merged |
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@anagio, I'm curious what your use case is for these. Are you just adding function to add functions or is this useful for you? |
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@moorereason these are useful to me and i'm sure will be to others. I have a data file (JSON) where a property in each object is usually a string but in some cases it may store another object. While looping over this data file these functions will help determine if I have a string or map returned. |
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Thanks I'll update the docs soon |
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Please update your commit message subject to following the contributing guide. |
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@moorereason updated title, and squashed commits |
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@anagio, you're close. I meant for you to update your commit message subject, not the PR title. |
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| ### typeOf | ||
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| Takes an interface and returns a string representation of the type. For pointers, this will return a type prefixed with an asterisk(*). So a pointer to type Foo will be *Foo. |
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Use backticks to keep the markdown from thinking you mean to use italics around the asterisks. For example,
with an asterisk(`*`). So a pointer to a type `Foo` will be `*Foo`.
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@moorereason thanks just made those updates |
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| ### typeIs | ||
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| Compares an interface with a string name, and returns true if they match. Note that a pointer will not match a reference. For example `*`Foo will not match Foo. |
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Should be:
For example `*Foo` will not match `Foo`.
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@anagio, it would be helpful to add example usages for all functions. |
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@moorereason docs are updated with an example of each function |
| return defaultT(translationID, args...) | ||
| if translated := defaultT(translationID, args...); translated != translationID { | ||
| return translated | ||
| } |
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Don't include this in your commit.
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@moorereason sorry about that it's removed |
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LGTM |
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Can this get merged in to make the release of 0.17 ? |
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Hello @anagio. Thanks for this PR. This PR was referenced in this discussion. I need what you have as What was the blocker for merging this? |
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@kaushalmodi I was not able to merge it on my own. moorereason said LGTM but it was just never merged. Ping him for more info |
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@anagio Well you should have pinged him a reminder to merge this. If you reopen this PR, may be @moorereason can take further steps. |
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I really didn't feel the need to ping anyone about merging it |
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Alright. Would you like to reopen this PR and wait for it to be merged? Or should I just open a new PR? I just wanted to give credits where they were due by having your commit merged if feasible. |
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We didn't merge because it would have permanently added some rather esoteric funcs to the global func map. Now that we have template func namespacing, we can revisit this. A lot has changed since this PR, so it would be better to start a new one. |
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@kaushalmodi feel free to submit a new PR |
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This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. |
This adds template functions to check types. Originally from https://github.com/Masterminds/sprig#reflection
typeOf: Takes an interface and returns a string representation of the type. For pointers, this will return a type prefixed with an asterisk(*). So a pointer to type Foo will be *Foo.typeIs: Compares an interface with a string name, and returns true if they match. Note that a pointer will not match a reference. For example *Foo will not match Foo.typeIsLike: returns true if the interface is of the given type, or is a pointer to the given type.kindOf: Takes an interface and returns a string representation of its kind.kindIs: Returns true if the given string matches the kind of the given interface.