import location
import ordered_tree
+private import console
# Root of the AST class-hierarchy
abstract class ANode
- # Location is set during AST building. Once built, location cannon be null.
+ # Location is set during AST building. Once built, location can not be null.
# However, manual instantiated nodes may need more care.
var location: Location is writable, noinit
sys.stderr.write "{hot_location} {self.class_name}: {message}\n{hot_location.colored_line("0;32")}\n"
end
+ # Is `self` a token or a pure-structural production like `AQId`?
+ fun is_structural: Bool do return false
+
# Write the subtree on stdout.
- # See `ASTDump`
- fun dump_tree
+ #
+ # Visit the subtree and display it with additional and useful information.
+ #
+ # By default, this displays all kind of nodes and the corresponding lines of codes.
+ #
+ # See `ASTDump` for details.
+ fun dump_tree(display_structural, display_line: nullable Bool)
do
- var d = new ASTDump
+ var d = new ASTDump(display_structural or else true, display_line or else true)
d.enter_visit(self)
d.write_to(sys.stdout)
end
+ # Information to display on a node
+ #
+ # Refine this method to add additional information on each node type.
+ fun dump_info(v: ASTDump): String do return ""
+
# Parent of the node in the AST
var parent: nullable ANode = null
# Is used to handle the initial node parent and workaround possible inconsistent `ANode::parent`
private var last_parent: nullable ANode = null
+ # Display tokens and structural production?
+ #
+ # Should tokens (and structural production like AQId) be displayed?
+ var display_structural: Bool
+
+ # Display lines?
+ #
+ # Should each new line be displayed (numbered and in gray)?
+ var display_line: Bool
+
+ # Current line number (when printing lines)
+ private var line = 0
+
redef fun visit(n)
do
+ if not display_structural and n.is_structural then return
var p = last_parent
add(p, n)
last_parent = n
last_parent = p
end
- redef fun display(n)
+ redef fun write_line(o, n, p)
do
- if n isa Token then
- return "{n.class_name} \"{n.text.escape_to_c}\" @{n.location}"
- else
- return "{n.class_name} @{n.location}"
+ if display_line then
+ var ls = n.location.line_start
+ var file = n.location.file
+ var line = self.line
+ if ls > line and file != null then
+ if line == 0 then line = ls - 1
+ while line < ls do
+ line += 1
+ o.write "{line}\t{file.get_line(line)}\n".light_gray
+ end
+ self.line = ls
+ end
end
+
+ super
end
+
+ redef fun display(n)
+ do
+ return "{n.class_name} {n.dump_info(self)} @{n.location}"
+ end
+
+ # `s` as yellow
+ fun yellow(s: String): String do return s.yellow
+
+ # `s` as red
+ fun red(s: String): String do return s.red
end
# A sequence of nodes
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
+
+ redef fun is_structural do return true
+
+ redef fun dump_info(v) do return " {text.escape_to_c}"
+
+ # 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
super TokenKeyword
end
-# The keywords `enum` ane `universal`
+# The keywords `enum` and `universal`
class TKwenum
super TokenKeyword
end
+# The keyword `subset`
+class TKwsubset
+ super TokenKeyword
+end
+
# The keyword `end`
class TKwend
super TokenKeyword
super TokenKeyword
end
+# The keyword `catch`
+class TKwcatch
+ super TokenKeyword
+end
+
# The keyword `var`
class TKwvar
super TokenKeyword
super TokenKeyword
end
+# The keyword `with`
+class TKwwith
+ super TokenKeyword
+end
+
+# The keyword `yield`
+class TKwyield
+ super TokenKeyword
+end
+
# The special keyword `__DEBUG__`
class TKwdebug
super Token
super TokenOperator
end
+# The operator `*=`
+class TStareq
+ super TokenOperator
+end
+
+# The operator `/=`
+class TSlasheq
+ super TokenOperator
+end
+
+# The operator `%=`
+class TPercenteq
+ super TokenOperator
+end
+
+# The operator `**=`
+class TStarstareq
+ super TokenOperator
+end
+
+# The operator `|=`
+class TPipeeq
+ super TokenOperator
+end
+
+# The operator `^=`
+class TCareteq
+ super TokenOperator
+end
+
+# The operator `&=`
+class TAmpeq
+ super TokenOperator
+end
+
+# The operator `<<=`
+class TLleq
+ super TokenOperator
+end
+
+# The operator `>>=`
+class TGgeq
+ super TokenOperator
+end
+
# The symbol `...`
class TDotdotdot
super Token
super TokenOperator
end
-# The operator `+%
+# The operator `%`
class TPercent
super TokenOperator
end
+# The operator `|`
+class TPipe
+ super TokenOperator
+end
+
+# The operator `^`
+class TCaret
+ super TokenOperator
+end
+
+# The operator `&`
+class TAmp
+ super TokenOperator
+end
+
+# The operator `~`
+class TTilde
+ super TokenOperator
+end
+
# The operator `==`
class TEq
super TokenOperator
super TokenOperator
end
+# The operator `?`
+class TQuest
+ super TokenOperator
+end
+
# The operator `!`
class TBang
super TokenOperator
super Token
end
+# The symbol `;`
+class TSemi
+ super Token
+end
+
# A class (or formal type) identifier. They start with an uppercase.
class TClassid
super Token
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
end
end
+# A malformed triple quoted string
+class TBadTString
+ super TBadString
+end
+
# A malformed char
class TBadChar
super Token
super Token
end
+# A malformed extern code block
+class TBadExtern
+ super Token
+ redef fun to_s
+ do
+ do return "malformed extern segment {text}"
+ end
+end
+
# A end of file
class EOF
super Token
class APublicVisibility
super AVisibility
# The `public` keyword, if any
- var n_kwpublic: nullable TKwpublic is writable
+ var n_kwpublic: nullable TKwpublic = null is writable
end
# An explicit private visibility modifier
class APrivateVisibility
end
# A class definition
-# While most definition are `AStdClassdef`
-# There is tow special case of class definition
+#
+# While most definitions are `AStdClassdef`s,
+# there are 2 special cases of class definitions.
abstract class AClassdef
super Prod
# All the declared properties (including the main method)
var n_classkind: AClasskind is writable, noinit
# The name of the class
- var n_id: nullable TClassid = null is writable
+ var n_qid: nullable AQclassid = 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
return [for d in n_propdefs do if d isa ASuperPropdef then d]
end
- redef fun hot_location do return n_id.location
+ redef fun hot_location do return n_qid.location
end
# The implicit class definition of the implicit main method
var n_kwclass: nullable TKwclass = null is writable
end
+class ASubsetClasskind
+ super AClasskind
+
+ # The `subset` keyword.
+ var n_kwsubset: TKwsubset is writable, noinit
+
+ redef fun visit_all(v) do
+ # TODO: Remove this redefinition once generated from the grammar.
+ v.enter_visit(n_kwsubset)
+ end
+end
+
# The definition of a formal generic parameter type. eg `X: Y`
class AFormaldef
super Prod
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 `init` keyword, if any
var n_kwinit: nullable TKwinit = null is writable
+ # The `isa` keyword, if any
+ var n_kwisa: nullable TKwisa = null is writable
+
# The `new` keyword, if any
var n_kwnew: nullable TKwnew = null is writable
# 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_kwtype: TKwtype is writable, noinit
# The name of the virtual type
- var n_id: TClassid is writable, noinit
+ var n_qid: AQclassid is writable, noinit
# The bound of the virtual type
var n_type: AType is writable, noinit
var n_id: TId is writable, noinit
end
-# A method name `+`
-class APlusMethid
+# A method name for an operator
+class AOperatorMethid
super AMethid
- # The `+` symbol
- var n_plus: TPlus is writable, noinit
+ # The associated operator symbol
+ var n_op: Token is writable, noinit
+end
+# A method name `+`
+class APlusMethid
+ super AOperatorMethid
end
# A method name `-`
class AMinusMethid
- super AMethid
-
- # The `-` symbol
- var n_minus: TMinus is writable, noinit
+ super AOperatorMethid
end
# A method name `*`
class AStarMethid
- super AMethid
-
- # The `*` symbol
- var n_star: TStar is writable, noinit
+ super AOperatorMethid
end
# A method name `**`
class AStarstarMethid
- super AMethid
-
- # The `**` symbol
- var n_starstar: TStarstar is writable, noinit
+ super AOperatorMethid
end
# A method name `/`
class ASlashMethid
- super AMethid
-
- # The `/` symbol
- var n_slash: TSlash is writable, noinit
+ super AOperatorMethid
end
# A method name `%`
class APercentMethid
- super AMethid
+ super AOperatorMethid
+end
+
+# A method name `|`
+class APipeMethid
+ super AOperatorMethid
+end
+
+# A method name `^`
+class ACaretMethid
+ super AOperatorMethid
+end
+
+# A method name `&`
+class AAmpMethid
+ super AOperatorMethid
+end
- # The `%` symbol
- var n_percent: TPercent is writable, noinit
+# A method name `~`
+class ATildeMethid
+ super AOperatorMethid
end
# A method name `==`
class AEqMethid
- super AMethid
-
- # The `==` symbol
- var n_eq: TEq is writable, noinit
+ super AOperatorMethid
end
# A method name `!=`
class ANeMethid
- super AMethid
-
- # The `!=` symbol
- var n_ne: TNe is writable, noinit
+ super AOperatorMethid
end
# A method name `<=`
class ALeMethid
- super AMethid
-
- # The `<=` symbol
- var n_le: TLe is writable, noinit
+ super AOperatorMethid
end
# A method name `>=`
class AGeMethid
- super AMethid
-
- # The `>=` symbol
- var n_ge: TGe is writable, noinit
+ super AOperatorMethid
end
# A method name `<`
class ALtMethid
- super AMethid
-
- # The `<` symbol
- var n_lt: TLt is writable, noinit
+ super AOperatorMethid
end
# A method name `>`
class AGtMethid
- super AMethid
-
- # The `>` symbol
- var n_gt: TGt is writable, noinit
+ super AOperatorMethid
end
# A method name `<<`
class ALlMethid
- super AMethid
-
- # The `<<` symbol
- var n_ll: TLl is writable, noinit
+ super AOperatorMethid
end
# A method name `>>`
class AGgMethid
- super AMethid
+ super AOperatorMethid
+end
- # The `>>` symbol
- var n_gg: TGg is writable, noinit
+# A method name `<=>`
+class AStarshipMethid
+ super AOperatorMethid
end
# A method name `[]`
var n_cbra: TCbra is writable, noinit
end
-# A method name `<=>`
-class AStarshipMethid
- super AMethid
-
- # The `<=>` symbol
- var n_starship: TStarship is writable, noinit
-end
-
# A setter method name with a simple identifier (with a `=`)
class AAssignMethid
super AMethid
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
+
+ redef fun is_structural do return true
+end
+
+# A potentially qualified class identifier `foo::bar::Baz`
+class AQclassid
+ super Prod
+ # The qualifier, if any
+ var n_qualified: nullable AQualified = null is writable
+
+ # The final identifier
+ var n_id: TClassid is writable, noinit
+
+ redef fun is_structural do return true
+end
+
# A signature in a method definition. eg `(x,y:X,z:Z):T`
class ASignature
super Prod
var n_kwnullable: nullable TKwnullable = null is writable
# The name of the class or of the formal type
- var n_id: TClassid is writable, noinit
+ var n_qid: AQclassid 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`
super AExpr
# The `var` keyword
- var n_kwvar: TKwvar is writable, noinit
+ var n_kwvar: nullable TKwvar = null is writable
# The name of the local variable
var n_id: TId is writable, noinit
# A `return` statement. eg `return x`
class AReturnExpr
- super AExpr
+ super AEscapeExpr
# The `return` keyword
var n_kwreturn: nullable TKwreturn = null is writable
+end
+
+# A `yield` statement. eg `yield x`
+class AYieldExpr
+ super AExpr
+
+ # The `yield` keyword
+ var n_kwyield: nullable TKwyield = null is writable
# The return value, if any
var n_expr: nullable AExpr = null is writable
# The list of statements of the `do`.
var n_block: nullable AExpr = null is writable
+
+ # The `catch` keyword
+ var n_kwcatch: nullable TKwcatch = null is writable
+
+ # The do catch block
+ var n_catch: nullable AExpr = null is writable
end
# A `if` statement
# 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 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 `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
+ super ALabelable
+
+ # The `with` keyword
+ var n_kwwith: TKwwith is writable, noinit
+
+ # The expression used to get the value to control
+ var n_expr: AExpr is writable, noinit
# The `do` keyword
var n_kwdo: TKwdo is writable, noinit
# 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
# A binary operation on a method
abstract class ABinopExpr
super ASendExpr
+
+ # The operator
+ var n_op: Token is writable, noinit
+
# The second operand of the operation
# Note: the receiver (`n_expr`) is the first operand
var n_expr2: AExpr is writable, noinit
+
+ # The name of the operator (eg '+')
+ fun operator: String is abstract
end
# Something that is boolean expression
# The first boolean operand
var n_expr: AExpr is writable, noinit
+ # The operator
+ var n_op: Token is writable, noinit
+
# The second boolean operand
var n_expr2: AExpr is writable, noinit
end
# A `or else` expression
class AOrElseExpr
super ABinBoolExpr
+
+ # The `else` keyword
+ var n_kwelse: TKwelse is writable, noinit
end
# A `implies` expression
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
# A `<` expression
class ALtExpr
super ABinopExpr
+ redef fun operator do return "<"
end
# A `<=` expression
class ALeExpr
super ABinopExpr
+ redef fun operator do return "<="
end
# A `<<` expression
class ALlExpr
super ABinopExpr
+ redef fun operator do return "<<"
end
# A `>` expression
class AGtExpr
super ABinopExpr
+ redef fun operator do return ">"
end
# A `>=` expression
class AGeExpr
super ABinopExpr
+ redef fun operator do return ">="
end
# A `>>` expression
class AGgExpr
super ABinopExpr
+ redef fun operator do return ">>"
end
# A type-ckeck expression. eg `x isa T`
# The expression to check
var n_expr: AExpr is writable, noinit
+ # The `isa` keyword
+ var n_kwisa: TKwisa is writable, noinit
+
# The destination type to check to
var n_type: AType is writable, noinit
end
# A `+` expression
class APlusExpr
super ABinopExpr
+ redef fun operator do return "+"
end
# A `-` expression
class AMinusExpr
super ABinopExpr
+ redef fun operator do return "-"
end
# A `<=>` expression
class AStarshipExpr
super ABinopExpr
+ redef fun operator do return "<=>"
end
# A `*` expression
class AStarExpr
super ABinopExpr
+ redef fun operator do return "*"
end
# A `**` expression
class AStarstarExpr
super ABinopExpr
+ redef fun operator do return "**"
end
# A `/` expression
class ASlashExpr
super ABinopExpr
+ redef fun operator do return "/"
end
# A `%` expression
class APercentExpr
super ABinopExpr
+ redef fun operator do return "%"
+end
+
+# A `|` expression
+class APipeExpr
+ super ABinopExpr
+ redef fun operator do return "|"
+end
+
+# A `^` expression
+class ACaretExpr
+ super ABinopExpr
+ redef fun operator do return "^"
+end
+
+# A `&` expression
+class AAmpExpr
+ super ABinopExpr
+ redef fun operator do return "&"
+end
+
+# A unary operation on a method
+abstract class AUnaryopExpr
+ super ASendExpr
+
+ # The operator
+ var n_op: Token is writable, noinit
+
+ # The name of the operator (eg '+')
+ fun operator: String is abstract
end
# A unary minus expression. eg `-x`
class AUminusExpr
- super ASendExpr
+ super AUnaryopExpr
+ redef fun operator do return "-"
+end
- # The `-` symbol
- var n_minus: TMinus is writable, noinit
+# A unary plus expression. eg `+x`
+class AUplusExpr
+ super AUnaryopExpr
+ redef fun operator do return "+"
+end
+
+# A unary `~` expression
+class AUtildeExpr
+ super AUnaryopExpr
+ redef fun operator do return "~"
end
# An explicit instantiation. eg `new T`
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
super ASendReassignFormExpr
end
+# A reference to a method with a captured receiver. eg. `&x.foo` or just `&foo` is self is captured.
+#
+# Currently, the syntax is analogous to a simple call (`recv.foo`) with a prefix `&`.
+# On chains, only the last call is captured (`.` has a higher precedence than `&`).
+#
+# The syntax is analogous to a call (except the &), there is always a receiver (including the implicit self or sys) and arguments are accepted by the parser.
+#
+# TODO There is no clear syntax proposal
+#
+# * to avoid the capture of a receiver since a receiver is statically expected to resolve the method name
+# * for special method names (setters, brackets and operators)
+#
+# Note: The class specializes `ASendExpr` (trough `ACallFormExpr`) so some behavior of a genuine send expression must be redefined.
+class ACallrefExpr
+ super ACallFormExpr
+
+ # The `&` operator
+ var n_amp: TAmp is writable, noinit
+end
+
+
# A call to `super`. OR a call of a super-constructor
class ASuperExpr
super AExpr
# 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
var n_exprs = new ANodes[AExpr](self)
end
+class ALambdaExpr
+ super AExpr
+ var n_kwmeth: TKwmeth is writable, noinit
+ var n_signature: ASignature is writable, noinit
+ var n_kwdo: TKwdo is writable, noinit
+ var n_expr: AExpr is writable, noinit
+end
+
# A simple parenthesis. eg `(x)`
class AParExpr
super AExpr
var n_dotdotdot: TDotdotdot is writable, noinit
end
+# A receiver with a `?` suffix used in safe call operator.
+class ASafeExpr
+ super AExpr
+
+ # The expression made safe
+ var n_expr: AExpr is writable, noinit
+
+ # The `?` symbol
+ var n_quest: TQuest is writable, noinit
+end
+
+# An named notation used to pass an expression by name in a parameter
+class ANamedargExpr
+ super AExpr
+
+ # The name of the argument
+ var n_id: TId is writable, noinit
+
+ # The `=` synbol
+ var n_assign: TAssign is writable, noinit
+
+ # The passed expression
+ var n_expr: AExpr is writable, noinit
+end
+
# A list of expression separated with commas (arguments for instance)
class AManyExpr
super AExpr
# A complex assignment operator. (`+=` and `-=`)
abstract class AAssignOp
super Prod
+
+ # The combined assignment operator
+ var n_op: Token is writable, noinit
+
+ # The name of the operator without the `=` (eg '+')
+ fun operator: String is abstract
end
-# The `+=` assignment operation
+# A `+=` assignment operation
class APlusAssignOp
super AAssignOp
- # The `+=` operator
- var n_pluseq: TPluseq is writable, noinit
+ redef fun operator do return "+"
end
-# The `-=` assignment operator
+# A `-=` assignment operation
class AMinusAssignOp
super AAssignOp
- # The `-=` operator
- var n_minuseq: TMinuseq is writable, noinit
+ redef fun operator do return "-"
+end
+
+# A `*=` assignment operation
+class AStarAssignOp
+ super AAssignOp
+
+ redef fun operator do return "*"
+end
+
+# A `/=` assignment operation
+class ASlashAssignOp
+ super AAssignOp
+
+ redef fun operator do return "/"
+end
+
+# A `%=` assignment operation
+class APercentAssignOp
+ super AAssignOp
+
+ redef fun operator do return "%"
+end
+
+# A `**=` assignment operation
+class AStarstarAssignOp
+ super AAssignOp
+
+ redef fun operator do return "**"
+end
+
+# A `|=` assignment operation
+class APipeAssignOp
+ super AAssignOp
+
+ redef fun operator do return "|"
+end
+
+# A `^=` assignment operation
+class ACaretAssignOp
+ super AAssignOp
+
+ redef fun operator do return "^"
+end
+
+# A `&=` assignment operation
+class AAmpAssignOp
+ super AAssignOp
+
+ redef fun operator do return "&"
+end
+
+# A `<<=` assignment operation
+class ALlAssignOp
+ super AAssignOp
+
+ redef fun operator do return "<<"
+end
+
+# A `>>=` assignment operation
+class AGgAssignOp
+ super AAssignOp
+
+ redef fun operator do return ">>"
end
# A possibly fully-qualified module identifier
# 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
super Prod
# The identifier of the annotation.
- # Can be a TId of a keyword
+ #
+ # Can be a TId or a keyword.
var n_id: Token is writable, noinit
end
nitlanguage / nit.git / blobdiff