Add template debugging functions #1026
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Template developers frequently need to show variable values while debugging templates. Issue #1009 requests better support for this. The `printf "%#v"` idiom is powerful but requires some knowledge of Hugo's internal representation of Go value types. Not all template designers will have that knowledge. The two functions `inspect` and `typeOf` provide a path towards easier to use and understand printing of variables and values. The `inspect` function replaces the `printf` call. This version relies on the default `string` conversion for the result. This provides a path towards pretty-printing variables and values. Templates may use `typeOf` to determine the best formatting for variables and values.
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Rebuilt as PR #1042 |
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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. |
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Template developers frequently need to show variable values while
debugging templates. Issue #1009 requests better support for this.
The
printf "%#v"idiom is powerful but requires some knowledgeof Hugo's internal representation of Go value types. Not all
template designers will have that knowledge. The two functions
inspectandtypeOfprovide a path towards easier to use andunderstand printing of variables and values.
The
inspectfunction replaces theprintfcall. This versionrelies on the default
stringconversion for the result. Thisprovides a path towards pretty-printing variables and values.
Templates may use
typeOfto determine the best formattingfor variables and values.