# Display a message for the colored location of the node
fun debug(message: String)
do
- print "{hot_location} {self.class_name}: {message}\n{hot_location.colored_line("0;32")}"
+ sys.stderr.write "{hot_location} {self.class_name}: {message}\n{hot_location.colored_line("0;32")}\n"
end
# Parent of the node in the AST
var parent: nullable ANode = null
- # Protect form invalid instantiation of nodes
+ # The topmost ancestor of the element
+ # This just apply `parent` until the first one
+ fun root: ANode
+ do
+ var res = self
+ loop
+ var p = res.parent
+ if p == null then return res
+ res = p
+ end
+ end
+
+ # The most specific common parent between `self` and `other`
+ # Return null if the two node are unrelated (distinct root)
+ fun common_parent(other: ANode): nullable ANode
+ do
+ # First, get the same depth
+ var s: nullable ANode = self
+ var o: nullable ANode = other
+ var d = s.depth - o.depth
+ while d > 0 do
+ s = s.parent
+ d -= 1
+ end
+ while d < 0 do
+ o = o.parent
+ d += 1
+ end
+ assert o.depth == s.depth
+ # Second, go up until same in found
+ while s != o do
+ s = s.parent
+ o = o.parent
+ end
+ return s
+ end
+
+ # Number of nodes between `self` and the `root` of the AST
+ # ENSURE `self == self.root implies result == 0 `
+ # ENSURE `self != self.root implies result == self.parent.depth + 1`
+ fun depth: Int
+ do
+ var n = self
+ var res = 0
+ loop
+ var p = n.parent
+ if p == null then return res
+ n = p
+ res += 1
+ end
+ end
+
+ # Protect from invalid instantiation of nodes
private init do end
# Replace a child with an other node in the AST
# The previous token in the Lexer.
# May have disapeared in the AST
- var prev_token: nullable Token
+ var prev_token: nullable Token = null
# The next token in the Lexer.
# May have disapeared in the AST
- var next_token: nullable Token
+ var next_token: nullable Token = null
+
+ # The verbatim blank text between `prev_token` and `self`
+ fun blank_before: String
+ do
+ if prev_token == null then return ""
+ var from = prev_token.location.pend+1
+ var to = location.pstart
+ return location.file.string.substring(from,to-from)
+ end
redef fun to_s: String do
return "'{text}'"
redef fun replace_child(old_child: ANode, new_child: nullable ANode) do end
end
+redef class SourceFile
+ # The first token parser by the lexer
+ # May have disapeared in the final AST
+ var first_token: nullable Token = null
+
+ # The first token parser by the lexer
+ # May have disapeared in the final AST
+ var last_token: nullable Token = null
+end
+
# Ancestor of all productions
# A production is a node without text but that usually has children.
abstract class Prod
super TokenOperator
end
class TDotdotdot
- super TokenOperator
+ super Token
end
class TDotdot
- super TokenOperator
+ super Token
end
class TDot
- super TokenOperator
+ super Token
end
class TPlus
super TokenOperator
readable var _n_imports: ANodes[AImport] = new ANodes[AImport](self)
readable var _n_extern_code_blocks: ANodes[AExternCodeBlock] = new ANodes[AExternCodeBlock](self)
readable var _n_classdefs: ANodes[AClassdef] = new ANodes[AClassdef](self)
+ init do end
end
# The declaration of the module with the documentation, name, and annotations
readable writable var _n_doc: nullable ADoc = null
readable writable var _n_kwmodule: TKwmodule
readable writable var _n_name: AModuleName
+ init do end
end
# A import clause of a module
readable writable var _n_visibility: AVisibility
readable writable var _n_kwimport: TKwimport
readable writable var _n_name: AModuleName
+ init do end
end
# The special import clause of the kernel module. eg `import end`
readable writable var _n_visibility: AVisibility
readable writable var _n_kwimport: TKwimport
readable writable var _n_kwend: TKwend
+ init do end
end
# A visibility modifier
class APrivateVisibility
super AVisibility
readable writable var _n_kwprivate: TKwprivate
+ init do end
end
class AProtectedVisibility
super AVisibility
readable writable var _n_kwprotected: TKwprotected
+ init do end
end
class AIntrudeVisibility
super AVisibility
readable writable var _n_kwintrude: TKwintrude
+ init do end
end
# A class definition
# While most definition are `AStdClassdef`
# There is tow special case of class definition
-abstract class AClassdef super Prod
+abstract class AClassdef
+ super Prod
readable var _n_propdefs: ANodes[APropdef] = new ANodes[APropdef](self)
+ init do end
end
# A standard class definition with a name, superclasses and properties
readable var _n_superclasses: ANodes[ASuperclass] = new ANodes[ASuperclass](self)
readable writable var _n_kwend: TKwend
redef fun hot_location do return n_id.location
+ init do end
end
# The implicit class definition of the implicit main method
class AConcreteClasskind
super AClasskind
readable writable var _n_kwclass: TKwclass
+ init do end
end
class AAbstractClasskind
super AClasskind
readable writable var _n_kwabstract: TKwabstract
readable writable var _n_kwclass: TKwclass
+ init do end
end
class AInterfaceClasskind
super AClasskind
readable writable var _n_kwinterface: TKwinterface
+ init do end
end
class AEnumClasskind
super AClasskind
readable writable var _n_kwenum: TKwenum
+ init do end
end
class AExternClasskind
super AClasskind
readable writable var _n_kwextern: TKwextern
readable writable var _n_kwclass: nullable TKwclass = null
+ init do end
end
# The definition of a formal generic parameter type. eg `X: Y`
readable writable var _n_id: TClassid
# The bound of the parameter type
readable writable var _n_type: nullable AType = null
+ init do end
end
# A super-class. eg `super X`
super Prod
readable writable var _n_kwsuper: TKwsuper
readable writable var _n_type: AType
+ init do end
end
# The definition of a property
do
if n_id != null then return n_id.location else return n_id2.location
end
+ init do end
end
# A definition of all kind of method (including constructors)
abstract class AMethPropdef
super APropdef
- readable writable var _n_kwmeth: nullable TKwmeth
- readable writable var _n_kwinit: nullable TKwinit
- readable writable var _n_kwnew: nullable TKwnew
+ readable writable var _n_kwmeth: nullable TKwmeth = null
+ readable writable var _n_kwinit: nullable TKwinit = null
+ readable writable var _n_kwnew: nullable TKwnew = null
readable writable var _n_methid: nullable AMethid = null
- readable writable var _n_signature: nullable ASignature
+ readable writable var _n_signature: nullable ASignature = null
readable writable var _n_block: nullable AExpr = null
readable writable var _n_extern: nullable TString = null
readable writable var _n_extern_calls: nullable AExternCalls = null
super AInitPropdef
end
+class AInternNewPropdef
+ super AInternMethPropdef
+ super AInitPropdef
+end
+
# A constructor marked extern (defined with the `new` keyword)
class AExternInitPropdef
super AExternPropdef
super Prod
readable writable var _n_kwimport: TKwimport
readable var _n_extern_calls: ANodes[AExternCall] = new ANodes[AExternCall](self)
+ init do end
end
abstract class AExternCall
super Prod
class ALocalPropExternCall
super APropExternCall
readable writable var _n_methid: AMethid
+ init do end
end
class AFullPropExternCall
super APropExternCall
readable writable var _n_type: AType
readable writable var _n_dot: nullable TDot = null
readable writable var _n_methid: AMethid
+ init do end
end
class AInitPropExternCall
super APropExternCall
readable writable var _n_type: AType
+ init do end
end
class ASuperExternCall
super AExternCall
readable writable var _n_kwsuper: TKwsuper
+ init do end
end
abstract class ACastExternCall
super AExternCall
readable writable var _n_dot: nullable TDot = null
readable writable var _n_kwas: TKwas
readable writable var _n_to_type: AType
+ init do end
end
class AAsNullableExternCall
super ACastExternCall
readable writable var _n_type: AType
readable writable var _n_kwas: TKwas
readable writable var _n_kwnullable: TKwnullable
+ init do end
end
class AAsNotNullableExternCall
super ACastExternCall
readable writable var _n_kwas: TKwas
readable writable var _n_kwnot: TKwnot
readable writable var _n_kwnullable: TKwnullable
+ init do end
end
# A definition of a virtual type
readable writable var _n_kwtype: TKwtype
readable writable var _n_id: TClassid
readable writable var _n_type: AType
+ init do end
end
# A `writable` or `readable` modifier
super Prod
readable writable var _n_visibility: nullable AVisibility = null
readable writable var _n_kwredef: nullable TKwredef = null
+ init do end
end
# A `readable` modifier
class AReadAble
super AAble
readable writable var _n_kwreadable: TKwreadable
+ init do end
end
# A `writable` modifier
class AWriteAble
super AAble
readable writable var _n_kwwritable: TKwwritable
+ init do end
end
# The identifier of a method in a method declaration.
class AIdMethid
super AMethid
readable writable var _n_id: TId
+ init do end
end
class APlusMethid
super AMethid
readable writable var _n_plus: TPlus
+ init do end
end
class AMinusMethid
super AMethid
readable writable var _n_minus: TMinus
+ init do end
end
class AStarMethid
super AMethid
readable writable var _n_star: TStar
+ init do end
end
class ASlashMethid
super AMethid
readable writable var _n_slash: TSlash
+ init do end
end
class APercentMethid
super AMethid
readable writable var _n_percent: TPercent
+ init do end
end
class AEqMethid
super AMethid
readable writable var _n_eq: TEq
+ init do end
end
class ANeMethid
super AMethid
readable writable var _n_ne: TNe
+ init do end
end
class ALeMethid
super AMethid
readable writable var _n_le: TLe
+ init do end
end
class AGeMethid
super AMethid
readable writable var _n_ge: TGe
+ init do end
end
class ALtMethid
super AMethid
readable writable var _n_lt: TLt
+ init do end
end
class AGtMethid
super AMethid
readable writable var _n_gt: TGt
+ init do end
end
class ALlMethid
super AMethid
readable writable var _n_ll: TLl
+ init do end
end
class AGgMethid
super AMethid
readable writable var _n_gg: TGg
+ init do end
end
class ABraMethid
super AMethid
readable writable var _n_obra: TObra
readable writable var _n_cbra: TCbra
+ init do end
end
class AStarshipMethid
super AMethid
readable writable var _n_starship: TStarship
+ init do end
end
class AAssignMethid
super AMethid
readable writable var _n_id: TId
readable writable var _n_assign: TAssign
+ init do end
end
class ABraassignMethid
super AMethid
readable writable var _n_obra: TObra
readable writable var _n_cbra: TCbra
readable writable var _n_assign: TAssign
+ init do end
end
# A signature in a method definition. eg `(x,y:X,z:Z):T`
readable var _n_params: ANodes[AParam] = new ANodes[AParam](self)
readable writable var _n_cpar: nullable TCpar = null
readable writable var _n_type: nullable AType = null
+ init do end
end
# A parameter definition in a signature. eg `x:X`
readable writable var _n_id: TId
readable writable var _n_type: nullable AType = null
readable writable var _n_dotdotdot: nullable TDotdotdot = null
+ init do end
end
# A static type. eg `nullable X[Y]`
# Type arguments for a generic type
readable var _n_types: ANodes[AType] = new ANodes[AType](self)
+ init do end
end
# A label at the end of a block or in a break/continue statement. eg `label x`
super Prod
readable writable var _n_kwlabel: TKwlabel
readable writable var _n_id: TId
+ init do end
end
# Expression and statements
super AExpr
readable var _n_expr: ANodes[AExpr] = new ANodes[AExpr](self)
readable writable var _n_kwend: nullable TKwend = null
+ init do end
end
# A declaration of a local variable. eg `var x: X = y`
# The initial value, if any
readable writable var _n_expr: nullable AExpr = null
+ init do end
end
# A `return` statement. eg `return x`
super AExpr
readable writable var _n_kwreturn: nullable TKwreturn = null
readable writable var _n_expr: nullable AExpr = null
+ init do end
end
# Something that has a label.
abstract class ALabelable
super Prod
readable writable var _n_label: nullable ALabel = null
+ init do end
end
# A `break` statement.
super ALabelable
readable writable var _n_kwbreak: TKwbreak
readable writable var _n_expr: nullable AExpr = null
+ init do end
end
# An `abort` statement
class AAbortExpr
super AExpr
readable writable var _n_kwabort: TKwabort
+ init do end
end
# A `continue` statement
super ALabelable
readable writable var _n_kwcontinue: nullable TKwcontinue = null
readable writable var _n_expr: nullable AExpr = null
+ init do end
end
# A `do` statement
super ALabelable
readable writable var _n_kwdo: TKwdo
readable writable var _n_block: nullable AExpr = null
+ init do end
end
# A `if` statement
readable writable var _n_expr: AExpr
readable writable var _n_then: nullable AExpr = null
readable writable var _n_else: nullable AExpr = null
+ init do end
end
# A `if` expression
readable writable var _n_then: AExpr
readable writable var _n_kwelse: TKwelse
readable writable var _n_else: AExpr
+ init do end
end
# A `while` statement
readable writable var _n_expr: AExpr
readable writable var _n_kwdo: TKwdo
readable writable var _n_block: nullable AExpr = null
+ init do end
end
# A `loop` statement
super ALabelable
readable writable var _n_kwloop: TKwloop
readable writable var _n_block: nullable AExpr = null
+ init do end
end
# A `for` statement
readable writable var _n_expr: AExpr
readable writable var _n_kwdo: TKwdo
readable writable var _n_block: nullable AExpr = null
+ init do end
end
# An `assert` statement
readable writable var _n_id: nullable TId = null
readable writable var _n_expr: AExpr
readable writable var _n_else: nullable AExpr = null
+ init do end
end
# Whatever is a simple assignment. eg `= something`
super AExpr
readable writable var _n_assign: TAssign
readable writable var _n_value: AExpr
+ init do end
end
# Whatever is a combined assignment. eg `+= something`
super AExpr
readable writable var _n_assign_op: AAssignOp
readable writable var _n_value: AExpr
+ init do end
end
# A `once` expression. eg `once x`
class AOnceExpr
super AProxyExpr
readable writable var _n_kwonce: TKwonce
+ init do end
end
# A polymorphic invocation of a method
super AExpr
# The receiver of the method invocation
readable writable var _n_expr: AExpr
+ init do end
end
# A binary operation on a method
# The second operand of the operation
# Note: the receiver (`n_expr`) is the first operand
readable writable var _n_expr2: AExpr
+ init do end
end
# Something that is boolean expression
super ABoolExpr
readable writable var _n_expr: AExpr
readable writable var _n_expr2: AExpr
+ init do end
end
# A `and` expression
super ABoolExpr
readable writable var _n_expr: AExpr
readable writable var _n_expr2: AExpr
+ init do end
end
# A `or else` expression
super ABoolExpr
readable writable var _n_expr: AExpr
readable writable var _n_expr2: AExpr
+ init do end
end
# A `implies` expression
super ABoolExpr
readable writable var _n_expr: AExpr
readable writable var _n_expr2: AExpr
+ init do end
end
# A `not` expression
super ABoolExpr
readable writable var _n_kwnot: TKwnot
readable writable var _n_expr: AExpr
+ init do end
end
# A `==` expression
super ABoolExpr
readable writable var _n_expr: AExpr
readable writable var _n_type: AType
+ init do end
end
# A `+` expression
class AUminusExpr
super ASendExpr
readable writable var _n_minus: TMinus
+ init do end
end
# An explicit instantiation. eg `new T`
# The name of the named-constructor, if any
readable writable var _n_id: nullable TId = null
readable writable var _n_args: AExprs
+ init do end
end
# Whatever is a old-style attribute access
# The name of the attribute
readable writable var _n_id: TAttrid
+
+ init do end
end
# The read of an attribute. eg `x._a`
# The arguments of the call
readable writable var _n_args: AExprs
+ init do end
end
# A complex setter call (standard or brackets)
readable writable var _n_qualified: nullable AQualified = null
readable writable var _n_kwsuper: TKwsuper
readable writable var _n_args: AExprs
+ init do end
end
# A call to the `init` constructor.
super ASendExpr
readable writable var _n_kwinit: TKwinit
readable writable var _n_args: AExprs
+ init do end
end
# Whatever looks-like a call of the brackets `[]` operator.
abstract class ABraFormExpr
super ASendExpr
readable writable var _n_args: AExprs
+ init do end
end
# A call of the brackets operator. eg `x[y,z]`
abstract class AVarFormExpr
super AExpr
readable writable var _n_id: TId
+ init do end
end
# A complex setter call of the bracket operator. eg `x[y,z]+=t`
super AExpr
readable writable var _n_expr: AExpr
readable writable var _n_expr2: AExpr
+ init do end
end
# A closed literal range. eg `[x..y]`
super ARangeExpr
readable writable var _n_obra: TObra
readable writable var _n_cbra: TCbra
+ init do end
end
# An open literal range. eg `[x..y[`
super ARangeExpr
readable writable var _n_obra: TObra
readable writable var _n_cbra: TObra
+ init do end
end
# A literal array. eg. `[x,y,z]`
class AArrayExpr
super AExpr
readable writable var _n_exprs: AExprs
+ init do end
end
# A read of `self`
class ASelfExpr
super AExpr
readable writable var _n_kwself: nullable TKwself
+ init do end
end
# When there is no explicit receiver, `self` is implicit
class ATrueExpr
super ABoolExpr
readable writable var _n_kwtrue: TKwtrue
+ init do end
end
# A `false` boolean literal constant
class AFalseExpr
super ABoolExpr
readable writable var _n_kwfalse: TKwfalse
+ init do end
end
# A `null` literal constant
class ANullExpr
super AExpr
readable writable var _n_kwnull: TKwnull
+ init do end
end
# An integer literal
class AIntExpr
class ADecIntExpr
super AIntExpr
readable writable var _n_number: TNumber
+ init do end
end
# An integer literal in hexadecimal format
class AHexIntExpr
super AIntExpr
readable writable var _n_hex_number: THexNumber
+ init do end
end
# A float literal
class AFloatExpr
super AExpr
readable writable var _n_float: TFloat
+ init do end
end
# A character literal
class ACharExpr
super AExpr
readable writable var _n_char: TChar
+ init do end
end
# A string literal
abstract class AStringFormExpr
super AExpr
readable writable var _n_string: Token
+ init do end
end
# A simple string. eg. `"abc"`
class ASuperstringExpr
super AExpr
readable var _n_exprs: ANodes[AExpr] = new ANodes[AExpr](self)
+ init do end
end
# A simple parenthesis. eg `(x)`
super AProxyExpr
readable writable var _n_opar: TOpar
readable writable var _n_cpar: TCpar
+ init do end
end
# Whatevej just contains (and mimic) an other expression
abstract class AProxyExpr
super AExpr
readable writable var _n_expr: AExpr
+ init do end
end
# A type cast. eg `x.as(T)`
readable writable var _n_opar: nullable TOpar = null
readable writable var _n_type: AType
readable writable var _n_cpar: nullable TCpar = null
+ init do end
end
# A as-not-null cast. eg `x.as(not null)`
readable writable var _n_kwnot: TKwnot
readable writable var _n_kwnull: TKwnull
readable writable var _n_cpar: nullable TCpar = null
+ init do end
end
# A is-set check of old-style attributes. eg `isset x._a`
class AIssetAttrExpr
super AAttrFormExpr
readable writable var _n_kwisset: TKwisset
+ init do end
end
# A list of expression separated with commas (arguments for instance)
abstract class AExprs
super Prod
readable var _n_exprs: ANodes[AExpr] = new ANodes[AExpr](self)
+ init do end
end
class ADebugTypeExpr
readable writable var _n_kwtype: TKwtype
readable writable var _n_expr: AExpr
readable writable var _n_type: AType
+ init do end
end
# A simple list of expressions
super AExprs
readable writable var _n_opar: TOpar
readable writable var _n_cpar: TCpar
+ init do end
end
# A list of expressions enclosed in brackets
super AExprs
readable writable var _n_obra: TObra
readable writable var _n_cbra: TCbra
+ init do end
end
# A complex assignment operator. eg `+=`
class APlusAssignOp
super AAssignOp
readable writable var _n_pluseq: TPluseq
+ init do end
end
class AMinusAssignOp
super AAssignOp
readable writable var _n_minuseq: TMinuseq
+ init do end
end
class AModuleName
readable writable var _n_quad: nullable TQuad = null
readable var _n_path: ANodes[TId] = new ANodes[TId](self)
readable writable var _n_id: TId
+ init do end
end
class AInLanguage
super Prod
readable writable var _n_kwin: TKwin
readable writable var _n_string: TString
+ init do end
end
class AExternCodeBlock
super Prod
readable writable var _n_in_language: nullable AInLanguage = null
readable writable var _n_extern_code_segment: TExternCodeSegment
+ init do end
end
class AQualified
super Prod
readable writable var _n_quad: nullable TQuad = null
readable var _n_id: ANodes[TId] = new ANodes[TId](self)
readable writable var _n_classid: nullable TClassid = null
+ init do end
end
# A documentation of a definition
class ADoc
super Prod
readable var _n_comment: ANodes[TComment] = new ANodes[TComment](self)
+ init do end
end
class AAnnotations
readable writable var _n_opar: nullable TOpar = null
readable var _n_items: ANodes[AAnnotation] = new ANodes[AAnnotation](self)
readable writable var _n_cpar: nullable TCpar = null
+ init do end
end
class AAnnotation
super Prod
readable writable var _n_opar: nullable TOpar = null
readable var _n_args: ANodes[AAtArg] = new ANodes[AAtArg](self)
readable writable var _n_cpar: nullable TCpar = null
+ init do end
end
abstract class AAtArg
super Prod
class ATypeAtArg
super AAtArg
readable writable var _n_type: AType
+ init do end
end
class AExprAtArg
super AAtArg
readable writable var _n_expr: AExpr
+ init do end
end
class AAtAtArg
super AAtArg
abstract class AAtid
super Prod
readable writable var _n_id: Token
+ init do end
end
class AIdAtid
super AAtid
nitlanguage / nit.git / blobdiff