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
+# A literal integer
+class TInteger
super TokenLiteral
end
# The name of the class
var n_id: nullable TClassid = null is writable
+ # The `[` symbol
+ var n_obra: nullable TObra = null is writable
+
# The list of formal parameter types
var n_formaldefs = new ANodes[AFormaldef](self)
+ # The `]` symbol
+ var n_cbra: nullable TCbra = null is writable
+
# The extern block code
var n_extern_code_block: nullable AExternCodeBlock = null is writable
class AAttrPropdef
super APropdef
- # The identifier for a old-style attribute (null if new-style)
+ # The `var` keyword
var n_kwvar: TKwvar is writable, noinit
- # The identifier for a new-style attribute (null if old-style)
+ # The identifier for a new-style attribute
var n_id2: TId is writable, noinit
# The declared type of the attribute
var n_type: nullable AType = null is writable
+ # The `=` symbol
+ var n_assign: nullable TAssign = null is writable
+
# The initial value, if any (set with `=`)
var n_expr: nullable AExpr = null is writable
+ # The `do` keyword
+ var n_kwdo: nullable TKwdo = null is writable
+
# The initial value, if any (set with `do return`)
var n_block: nullable AExpr = null is writable
+ # The `end` keyword
+ var n_kwend: nullable TKwend = null is writable
+
redef fun hot_location
do
return n_id2.location
# The signature of the method, if any
var n_signature: nullable ASignature = null is writable
+ # The `do` keyword
+ var n_kwdo: nullable TKwdo = null is writable
+
# The body (in Nit) of the method, if any
var n_block: nullable AExpr = null is writable
+ # The `end` keyword
+ var n_kwend: nullable TKwend = null is writable
+
# The list of declared callbacks (for extern methods)
var n_extern_calls: nullable AExternCalls = null is writable
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 name of the class or of the formal type
var n_id: TClassid is writable, noinit
+ # The opening bracket
+ var n_obra: nullable TObra = null is writable
+
# Type arguments for a generic type
var n_types = new ANodes[AType](self)
+
+ # The closing bracket
+ var n_cbra: nullable TCbra = null is writable
end
# A label at the end of a block or in a break/continue statement. eg `label x`
# The expression used as the condition of the `if`
var n_expr: AExpr is writable, noinit
+ # The `then` keyword
+ var n_kwthen: TKwthen is writable, noinit
+
# The body of the `then` part
var n_then: nullable AExpr = null is writable
+ # The `else` keyword
+ var n_kwelse: nullable TKwelse = null is writable
+
# The body of the `else` part
var n_else: nullable AExpr = null is writable
end
# The `for` keyword
var n_kwfor: TKwfor is writable, noinit
- # 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 list of groups to iterate
+ var n_groups = new ANodes[AForGroup](self)
# The `do` keyword
var n_kwdo: TKwdo is writable, noinit
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 `in` keyword
+ var n_kwin: TKwin is writable, noinit
+
+ # The expression used as the collection to iterate on
+ var n_expr: AExpr is writable, noinit
+end
+
# A `with` statement
class AWithExpr
super AExpr
# The expression used as the condition of the `assert`
var n_expr: AExpr is writable, noinit
+ # The `else` keyword
+ var n_kwelse: nullable TKwelse = null is writable
+
# The body to execute when the assert fails
var n_else: nullable AExpr = null is writable
end
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
# The left (lower) element of the range
var n_expr: AExpr is writable, noinit
- # The right (uppr) element of the range
+ # The `..`
+ var n_dotdot: TDotdot is writable, noinit
+
+ # The right (upper) element of the range
var n_expr2: AExpr is writable, noinit
end
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
+ # 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
class AAnnotations
super Prod
+ # The `is` keyword, for *is* annotations
+ var n_kwis: nullable TKwis = null is writable
+
# The `@` symbol, for *at* annotations
var n_at: nullable TAt = null is writable
# The closing parenthesis in *at* annotations
var n_cpar: nullable TCpar = null is writable
+
+ # The `end` keyword, for *is* annotations
+ var n_kwend: nullable TKwend = null is writable
end
# A single annotation
nitlanguage / nit.git / blobdiff