private var parent: ANode
private var items = new Array[E]
redef fun iterator do return items.iterator
+ redef fun reverse_iterator do return items.reverse_iterator
redef fun length do return items.length
redef fun is_empty do return items.is_empty
redef fun push(e)
# May have disappeared in the AST
var next_token: nullable Token = null
+ # Is `self` a token discarded from the AST?
+ #
+ # Loose tokens are not present in the AST.
+ # It means they were identified by the lexer but were discarded by the parser.
+ # It also means that they are not visited or manipulated by AST-related functions.
+ #
+ # Each loose token is attached to the non-loose token that precedes or follows it.
+ # The rules are the following:
+ #
+ # * tokens that follow a non-loose token on a same line are attached to it.
+ # See `next_looses`.
+ # * other tokens, thus that precede a non-loose token on the same line or the next one,
+ # are attached to this one. See `prev_looses`.
+ #
+ # Loose tokens are mostly end of lines (`TEol`) and comments (`TComment`).
+ # Whitespace are ignored by the lexer, so they are not even considered as loose tokens.
+ # See `blank_before` to get the whitespace that separate tokens.
+ var is_loose = false
+
+ # Loose tokens that precede `self`.
+ #
+ # These tokens start the line or belong to a line with only loose tokens.
+ var prev_looses = new Array[Token] is lazy
+
+ # Loose tokens that follow `self`
+ #
+ # These tokens are on the same line than `self`.
+ var next_looses = new Array[Token] is lazy
+
# The verbatim blank text between `prev_token` and `self`
fun blank_before: String
do
end
end
-# A literal decimal integer
-class TNumber
- super TokenLiteral
-end
-
-# A literal hexadecimal integer
-class THexNumber
- super TokenLiteral
-end
-
-# A literal binary integer
-class TBinNumber
- super TokenLiteral
-end
-
-# A literal octal integer
-class TOctNumber
+# A literal integer
+class TInteger
super TokenLiteral
end
var n_assign: TAssign is writable, noinit
end
+# A potentially qualified simple identifier `foo::bar::baz`
+class AQid
+ super Prod
+ # The qualifier, if any
+ var n_qualified: nullable AQualified = null is writable
+
+ # The final identifier
+ var n_id: TId is writable, noinit
+end
+
# A signature in a method definition. eg `(x,y:X,z:Z):T`
class ASignature
super Prod
# The `for` keyword
var n_kwfor: TKwfor is writable, noinit
+ # The list of groups to iterate
+ var n_groups = new ANodes[AForGroup](self)
+
+ # The `do` keyword
+ var n_kwdo: TKwdo is writable, noinit
+
+ # The body of the loop
+ var n_block: nullable AExpr = null is writable
+end
+
+# A collection iterated by a for, its automatic variables and its implicit iterator.
+#
+# Standard `for` iterate on a single collection.
+# Multiple `for` can iterate on more than one collection at once.
+class AForGroup
+ super Prod
+
# The list of name of the automatic variables
var n_ids = new ANodes[TId](self)
# The expression used as the collection to iterate on
var n_expr: AExpr is writable, noinit
-
- # The `do` keyword
- var n_kwdo: TKwdo is writable, noinit
-
- # The body of the loop
- var n_block: nullable AExpr = null is writable
end
# A `with` statement
var n_expr: AExpr is writable, noinit
end
+# A `==` or a `!=` expression
+#
+# Both have a similar effect on adaptive typing, so this class factorizes the common behavior.
+class AEqFormExpr
+ super ABinopExpr
+end
+
# A `==` expression
class AEqExpr
- super ABinopExpr
+ super AEqFormExpr
redef fun operator do return "=="
end
# A `!=` expression
class ANeExpr
- super ABinopExpr
+ super AEqFormExpr
redef fun operator do return "!="
end
end
# A unary operation on a method
-class AUnaryopExpr
+abstract class AUnaryopExpr
super ASendExpr
# The operator
var n_type: AType is writable, noinit
# The name of the named-constructor, if any
- var n_id: nullable TId = null is writable
+ var n_qid: nullable AQid = null is writable
# The arguments of the `new`
var n_args: AExprs is writable, noinit
super ASendExpr
# The name of the method
- var n_id: TId is writable, noinit
+ var n_qid: AQid is writable, noinit
# The arguments of the call
var n_args: AExprs is writable, noinit
end
# An integer literal
-class AIntExpr
+class AIntegerExpr
super AExpr
-end
-
-# An integer literal in decimal format
-class ADecIntExpr
- super AIntExpr
-
- # The decimal token
- var n_number: TNumber is writable, noinit
-end
-
-# An integer literal in hexadecimal format
-class AHexIntExpr
- super AIntExpr
-
- # The hexadecimal token
- var n_hex_number: THexNumber is writable, noinit
-end
-
-# An integer literal in binary format
-class ABinIntExpr
- super AIntExpr
-
- # The binary token
- var n_bin_number: TBinNumber is writable, noinit
-end
-
-# An integer literal in octal format
-class AOctIntExpr
- super AIntExpr
- # The octal token
- var n_oct_number: TOctNumber is writable, noinit
+ # The integer token
+ var n_integer: TInteger is writable, noinit
end
# A float literal
# The starting quad (`::`)
var n_quad: nullable TQuad = null is writable
- # The list of quad-separated project/group identifiers
+ # The list of quad-separated package/group identifiers
var n_path = new ANodes[TId](self)
# The final module identifier
# The starting quad (`::`)
var n_quad: nullable TQuad = null is writable
- # The list of quad-separated project/group/module identifiers
+ # The list of quad-separated package/group/module identifiers
var n_id = new ANodes[TId](self)
# A class identifier
nitlanguage / nit.git / blobdiff