Sometimes the placeholder is identified as EditorPlaceholderPattern and sometimes as EditorPlaceholderExpr

[HassanTaleb90]

Code:

let <#name#> = <#value#>

<#name#> // EditorPlaceholderPattern

<#value#> // EditorPlaceholderExpr

What is the difference between EditorPlaceholderPattern and EditorPlaceholderExpr?

[ahoppen]

Tracked in Apple’s issue tracker as rdar://115211644

[ahoppen]

The left-hand side of a variable declaration is a PatternSyntax and thus the editor placeholder is parsed as an EditorPalceholderPatternSyntax. This comes from the facto that Swift models variable declarations as pattern bindings with a pattern on the left and an expression that is being bound on the right side of the = sign.

https://swiftpackageindex.com/apple/swift-syntax/main/documentation/swiftsyntax/patternbindingsyntax.