rust highlights: clean up constructor logic (#8957)
Enum variants and (tuple) structs are indistinguishable in general, so we mark any PascalCase pattern or expression as a "constructor", which covers all three.
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1 changed files with 43 additions and 21 deletions
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@ -189,6 +189,33 @@
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; TODO: variable.mut to highlight mutable identifiers via locals.scm
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; TODO: variable.mut to highlight mutable identifiers via locals.scm
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; -------
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; Constructors
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; -------
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; TODO: this is largely guesswork, remove it once we get actual info from locals.scm or r-a
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(struct_expression
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name: (type_identifier) @constructor)
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(tuple_struct_pattern
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type: [
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(identifier) @constructor
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(scoped_identifier
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name: (identifier) @constructor)
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])
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(struct_pattern
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type: [
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((type_identifier) @constructor)
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(scoped_type_identifier
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name: (type_identifier) @constructor)
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])
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(match_pattern
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((identifier) @constructor) (#match? @constructor "^[A-Z]"))
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(or_pattern
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((identifier) @constructor)
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((identifier) @constructor)
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(#match? @constructor "^[A-Z]"))
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; -------
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; -------
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; Guess Other Types
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; Guess Other Types
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; -------
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; -------
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@ -203,33 +230,28 @@
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(call_expression
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(call_expression
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function: [
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function: [
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((identifier) @type.enum.variant
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((identifier) @constructor
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(#match? @type.enum.variant "^[A-Z]"))
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(#match? @constructor "^[A-Z]"))
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(scoped_identifier
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(scoped_identifier
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name: ((identifier) @type.enum.variant
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name: ((identifier) @constructor
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(#match? @type.enum.variant "^[A-Z]")))
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(#match? @constructor "^[A-Z]")))
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])
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])
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; ---
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; ---
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; Assume that types in match arms are enums and not
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; PascalCase identifiers under a path which is also PascalCase
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; tuple structs. Same for `if let` expressions.
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; are assumed to be constructors if they have methods or fields.
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; ---
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; ---
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(match_pattern
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(field_expression
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(scoped_identifier
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value: (scoped_identifier
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name: (identifier) @constructor))
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path: [
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(tuple_struct_pattern
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(identifier) @type
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type: [
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((identifier) @constructor)
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(scoped_identifier
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(scoped_identifier
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name: (identifier) @constructor)
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name: (identifier) @type)
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])
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]
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(struct_pattern
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name: (identifier) @constructor
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type: [
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(#match? @type "^[A-Z]")
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((type_identifier) @constructor)
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(#match? @constructor "^[A-Z]")))
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(scoped_type_identifier
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name: (type_identifier) @constructor)
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])
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; ---
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; ---
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; Other PascalCase identifiers are assumed to be structs.
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; Other PascalCase identifiers are assumed to be structs.
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