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Diffstat (limited to 'src/ast.rs')
-rw-r--r-- | src/ast.rs | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/src/ast.rs b/src/ast.rs deleted file mode 100644 index 6c7963e..0000000 --- a/src/ast.rs +++ /dev/null @@ -1,116 +0,0 @@ -/// Representation of Tokens, function names, the like... -pub type Id = String; - -/// Puck's fundamental types. -pub enum Type { - Void, Never, - Integer, Float, String, // char et al are defined later - Func{from: Box<Type>, to: Box<Type>}, // todo: multiple params, effects - Struct(Vec<(Id, Box<Type>)>), - Tuple(Vec<(Option<String>, Box<Type>)>), - Union(Vec<(Id, Box<Type>)>), - Interface { - funcs: Vec<Sig>, - for_type: Option<Box<Type>>, - }, - Array{size: usize, kind: Box<Type>}, - List(Box<Type>), - Slice(Box<Type>), // todo: plus ownership - Reference(Box<Type>), - Mutable(Box<Type>), // parameters only - Static(Box<Type>), // parameters only - Alias{ id: Id, params: Vec<Type> }, // todo: this is wrong -} - -/// Function signatures. -pub struct Sig { - effect: Option<Id>, - id: Id, - generics: Vec<(Id, Option<Type>)>, - params: Vec<Type>, - result: Option<Type> -} - -/// Patterns are recognizable given zero context. -/// This is why there is a generic Number term and no Bool term. -/// Also can be considered to be a Term/Value. -pub enum Pattern { - Ident(Id), // type aliases, union variants, calls... - Number(i64), Float(f64), - Char(char), String(String), - Struct(Vec<StructPattern>), - Tuple(Vec<TuplePattern>), - List(Vec<Expr>), // arrays, slices, lists -} - -pub struct StructPattern { field: Id, value: Expr } -pub struct TuplePattern { field: Option<Id>, value: Expr } - -/// Expressions introduce a new binding or bindings, in some regard. -pub enum Binding { - Let { - id: Pattern, // id: Pattern supports ex. `let (a, b) = ...` - kind: Option<Type>, - value: Box<Expr> - }, - Var { - id: Pattern, - kind: Option<Type>, - value: Option<Box<Expr>> // variable bindings can be delayed - }, - Const { - public: bool, - id: Pattern, - kind: Option<Type>, - value: Box<Expr> - }, - FuncDecl { - public: bool, - effect: Option<Id>, - id: Id, - generics: Vec<GenericDecl>, - params: Vec<ParamDecl>, - kind: Type, - body: Vec<Expr> - }, - TypeDecl { id: Id, generics: Vec<Id>, alias: Type }, - Import { from: Option<Id>, imports: Vec<Id>, alias: Option<Id> }, - Module { id: Id, body: Vec<Expr> }, -} - -pub struct GenericDecl { id: Id, kind: Option<Type> } -pub struct ParamDecl { id: Id, kind: Type } - -/// Expressions related to control flow. -pub enum Control { - Call { id: Id, params: Vec<Expr> }, // function calls, macro invocations, field access... - If { - branches: Vec<CondBranch>, - else_body: Option<Vec<Expr>> - }, - Try { - body: Vec<Expr>, - catches: Vec<CatchBranch>, - finally: Option<Vec<Expr>> - }, - Match { - item: Pattern, - branches: Vec<MatchBranch> - }, - Block { id: Option<Id>, body: Vec<Expr> }, - Static { body: Vec<Expr> }, - For { binding: Pattern, range: Box<Expr>, body: Vec<Expr> }, - While { cond: Box<Expr>, body: Vec<Expr> }, - Loop { body: Vec<Expr> }, -} - -pub struct CondBranch { cond: Expr, body: Vec<Expr> } -pub struct CatchBranch { exceptions: Vec<Id>, binding: Option<Id>, body: Vec<Expr> } -pub struct MatchBranch { pattern: Pattern, guard: Option<Expr>, body: Vec<Expr> } - -/// Expressions are either Patterns, Bindings, or Control flow constructs. -pub enum Expr { - Pattern(Pattern), - Binding(Binding), - Control(Control), -} |