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| 1 | namespace Syntax.Trees.Definitions is | |
| 2 | use IO.Std; | |
| 3 | ||
| 4 | use Source; | |
| 5 | ||
| 6 | class FUNCTION( | |
| 7 | location: LOCATION, | |
| 8 | name: Identifiers.Identifier?, | |
| 9 | generic_arguments: TypeExpressions.LIST, | |
| 10 | arguments: Variables.LIST public, | |
| 11 | type_expression: TypeExpressions.TypeExpression, | |
| 12 | modifiers: Modifiers.LIST, | |
| 13 | body: Bodies.Body? public | |
| 14 | ): MODIFIABLE, ScopeCarrier is | |
| 15 | scope: Semantic.Scope? public; | |
| 16 | ||
| 17 | // True when the body contains an `await` expression (not in | |
| 18 | // a nested lambda). Set by declare-symbols. Drives async | |
| 19 | // classification + downstream IL emission decisions. | |
| 20 | contains_let_await: bool public; | |
| 21 | ||
| 22 | // True when `contains_let_await` is set AND the body has no | |
| 23 | // value-returning `return X;` statements — meaning the | |
| 24 | // function returns the non-generic `Tasks.TASK` (rather than | |
| 25 | // `Tasks.TASK[T]` for some T). | |
| 26 | is_void_async: bool public; | |
| 27 | ||
| 28 | // Set on the `init` FUNCTION synthesised by | |
| 29 | // rewrite-primary-constructors from a class's primary-constructor | |
| 30 | // header. Lets declare-symbols record the primary constructor on | |
| 31 | // the owning type (a class can have secondary constructors too, so | |
| 32 | // the primary is not simply the only `init`). | |
| 33 | is_primary_constructor: bool public; | |
| 34 | ||
| 35 | for_property: PROPERTY? public; | |
| 36 | ||
| 37 | // Set on the accessor FUNCTIONs synthesised by add-accessors-for- | |
| 38 | // properties when the owning property is underscore-prefixed. The | |
| 39 | // accessor's own IL name ($get_/$set_) does not start with an | |
| 40 | // underscore, so this carries the property's underscore scope | |
| 41 | // through to declare-symbols, where it drives the access policy. | |
| 42 | is_underscore_scoped: bool public; | |
| 43 | ||
| 44 | // Set on FUNCTIONs synthesised by add-accessors-for- | |
| 45 | // properties from a `[index]: T` indexer. The CLR-required | |
| 46 | // names `get_Item` / `set_Item` aren't user-chosen, so | |
| 47 | // diagnostics that target user naming (e.g. the snake_case | |
| 48 | // member-name warning) gate on `!for_indexer?`. | |
| 49 | for_indexer: INDEXER? public; | |
| 50 | ||
| 51 | super(location, modifiers); | |
| 52 | ||
| 53 | accept(visitor: Visitor) is | |
| 54 | visitor.visit(self); | |
| 55 | si | |
| 56 | ||
| 57 | walk(visitor: Visitor) is | |
| 58 | if !visitor.pre(self) then | |
| 59 | // the children can be left null when the parser hits | |
| 60 | // catastrophic input and unwinds out of the declaration | |
| 61 | if name? then | |
| 62 | name.walk(visitor); | |
| 63 | fi | |
| 64 | ||
| 65 | arguments.walk(visitor); | |
| 66 | ||
| 67 | type_expression.walk(visitor); | |
| 68 | ||
| 69 | if body? then | |
| 70 | body.walk(visitor); | |
| 71 | fi | |
| 72 | fi | |
| 73 | ||
| 74 | accept(visitor); | |
| 75 | si | |
| 76 | si | |
| 77 | si |