# A source module can locate AST nodes of related MM entities
# Once a source module AST is no more needed, _nodes is set to null
# See ToolContext::keep_ast property in syntax.nit for details
- var _nodes: nullable HashMap[Object, nullable PNode] = new HashMap[Object, nullable PNode]
+ var _nodes: nullable HashMap[Object, nullable ANode] = new HashMap[Object, nullable ANode]
# Release the AST
fun clear_ast do _nodes = null
_src_local_classes = new HashMap[Symbol, MMSrcLocalClass]
end
- redef fun nodes(o: Object): nullable PNode
+ redef fun nodes(o: Object): nullable ANode
do
if _nodes != null and _nodes.has_key(o) then return _nodes[o] else return null
end
- redef fun nodes=(o: Object, n: nullable PNode)
+ redef fun nodes=(o: Object, n: nullable ANode)
do
assert not _nodes.has_key(o)
_nodes[o] = n
redef class MMModule
# The AST node of some entity
- private fun nodes(o: Object): nullable PNode do return null
+ private fun nodes(o: Object): nullable ANode do return null
# The AST node of some entity
- private fun nodes=(o: Object, n: nullable PNode) do abort
+ private fun nodes=(o: Object, n: nullable ANode) do abort
end
redef class MMGlobalClass
# Check that a module can access a class
- fun check_visibility(v: AbsSyntaxVisitor, n: PNode, cm: MMSrcModule): Bool do
+ fun check_visibility(v: AbsSyntaxVisitor, n: ANode, cm: MMSrcModule): Bool do
var pm = intro.module
assert pm isa MMSrcModule
var vpm = cm.visibility_for(pm)
class MMSrcLocalClass
special MMConcreteClass
# The first related AST node (if any)
- fun node: nullable PClassdef do return module.nodes(self).as(nullable PClassdef)
+ fun node: nullable AClassdef do return module.nodes(self).as(nullable AClassdef)
# Concrete NIT source generic formal parameter by name
readable var _formal_dict: Map[Symbol, MMTypeFormalParameter] = new HashMap[Symbol, MMTypeFormalParameter]
# Concrete NIT source properties by name
readable var _src_local_properties: Map[Symbol, MMLocalProperty]
- init(mod: MMSrcModule, n: Symbol, cla: nullable PClassdef, a: Int)
+ init(mod: MMSrcModule, n: Symbol, cla: nullable AClassdef, a: Int)
do
super(mod, n, a)
mod.nodes(self) = cla
redef class MMGlobalProperty
# Check that a module can access a property
- fun check_visibility(v: AbsSyntaxVisitor, n: PNode, cm: MMSrcModule, allows_protected: Bool): Bool do
+ fun check_visibility(v: AbsSyntaxVisitor, n: ANode, cm: MMSrcModule, allows_protected: Bool): Bool do
var pm = local_class.module
assert pm isa MMSrcModule
var vpm = cm.visibility_for(pm)
redef class MMLocalProperty
# The attached node (if any)
- fun node: nullable PNode do return null
+ fun node: nullable ANode do return null
# Is the concrete method defined as init
fun is_init: Bool do return false
readable var _name: Symbol
# Declaration AST node
- readable var _decl: nullable PNode
+ readable var _decl: nullable ANode
# Static type
readable writable var _stype: nullable MMType
fun kind: String is abstract
- init(n: Symbol, d: nullable PNode)
+ init(n: Symbol, d: nullable ANode)
do
_name = n
_decl = d
class VarVariable
special Variable
redef fun kind do return once "variable"
- init(n: Symbol, d: PNode) do super
+ init(n: Symbol, d: ANode) do super
end
# Parameter of method (declared in signature)
class ParamVariable
special Variable
redef fun kind do return once "parameter"
- init(n: Symbol, d: nullable PNode) do super
+ init(n: Symbol, d: nullable ANode) do super
end
# Automatic variable (like in the 'for' statement)
class AutoVariable
special Variable
redef fun kind do return once "automatic variable"
- init(n: Symbol, d: PNode) do super
+ init(n: Symbol, d: ANode) do super
end
# False variable corresponding to closures declared in signatures
# The signature of the closure
readable var _closure: MMClosure
- init(n: Symbol, d: PNode, c: MMClosure)
+ init(n: Symbol, d: ANode, c: MMClosure)
do
super(n, d)
_closure = c
readable var _tc: ToolContext
# Display an error for a given syntax node
- fun error(n: nullable PNode, s: String)
+ fun error(n: nullable ANode, s: String)
do
_tc.error(if n == null then null else n.location, s)
end
# Add an error, show errors and quit
- fun fatal_error(n: nullable PNode, s: String)
+ fun fatal_error(n: nullable ANode, s: String)
do
_tc.fatal_error(if n == null then null else n.location, s)
end
# Display a warning for a given syntax node
- fun warning(n: nullable PNode, s: String)
+ fun warning(n: nullable ANode, s: String)
do
_tc.warning(if n == null then null else n.location, s)
end
# Check conformity and display error
- fun check_conform(n: PNode, subtype: nullable MMType, stype: nullable MMType): Bool
+ fun check_conform(n: ANode, subtype: nullable MMType, stype: nullable MMType): Bool
do
if stype == null or subtype == null then
return false
# Check that an expression has a static type and that
# Display an error and return false if n is a statement
# Require that the static type of n is known
- fun check_expr(n: PExpr): Bool
+ fun check_expr(n: AExpr): Bool
do
if not n.is_typed then
if tc.error_count == 0 then
end
# Combine check_conform and check_expr
- fun check_conform_expr(n: PExpr, stype: nullable MMType): Bool
+ fun check_conform_expr(n: AExpr, stype: nullable MMType): Bool
do
if stype == null then return false
if check_expr(n) then return check_conform(n, n.stype, stype) else return false
# Int, Int, Object => return Object
# Int, Float => display error, return null
# nullable Int, Object => return nullable Object
- fun check_conform_multiexpr(stype: nullable MMType, nodes: Collection[PExpr]): nullable MMType
+ fun check_conform_multiexpr(stype: nullable MMType, nodes: Collection[AExpr]): nullable MMType
do
- var node: nullable PExpr = null # candidate node
+ var node: nullable AExpr = null # candidate node
for n in nodes do
if not check_expr(n) then return null
var ntype = n.stype
###############################################################################
-redef class PNode
+redef class ANode
protected fun accept_abs_syntax_visitor(v: AbsSyntaxVisitor) do visit_all(v)
end
end
end
-redef class PClassdef
+redef class AClassdef
# Associated class (MM entity)
fun local_class: MMSrcLocalClass is abstract
- # Next PClassdef of the same class (if any)
- readable writable var _next_node: nullable PClassdef = null
+ # Next AClassdef of the same class (if any)
+ readable writable var _next_node: nullable AClassdef = null
end
-redef class PPropdef
+redef class APropdef
# Associated 'self' variable
fun self_var: ParamVariable is abstract
end
fun prop: MMSrcTypeProperty is abstract
end
-redef class PParam
+redef class AParam
# Position in the signature
fun position: Int is abstract
fun variable: ParamVariable is abstract
end
-redef class PClosureDecl
+redef class AClosureDecl
# Position in the signature
fun position: Int is abstract
fun variable: ClosureVariable is abstract
end
-redef class PType
- # Retrieve the local class corresponding to the type.
- # Display an error and return null if there is no class
- # Display an error and return null if the type is not class based (formal one)
- fun get_local_class(v: AbsSyntaxVisitor): nullable MMLocalClass is abstract
-
- # Retrieve corresponding static type.
- # Display an error and return null if there is a problem
- fun get_stype(v: AbsSyntaxVisitor): nullable MMType is abstract
-
- # Retrieve corresponding static type.
- # Display an error and return null if there is a problem
- # But do not performs any subtype check.
- # get_unchecked_stype should be called to check that the static type is fully valid
- fun get_unchecked_stype(v: AbsSyntaxVisitor): nullable MMType is abstract
-
- # Check that a static definition type is conform with regard to formal types
- # Useful with get_unchecked_stype
- # Remember that conformance check need that ancestors are totaly computed
- fun check_conform(v: AbsSyntaxVisitor) is abstract
-
+redef class AType
# Is the node correcly typed
# Return false if typed was not yet computed or
# if an error occured during the typing computation
# Return corresponding static type. (require is_typed)
fun stype: MMType is abstract
-end
-redef class AType
var _stype_cache: nullable MMType = null
var _stype_cached: Bool = false
- redef fun get_local_class(v)
+ # Retrieve the local class corresponding to the type.
+ # Display an error and return null if there is no class
+ # Display an error and return null if the type is not class based (formal one)
+ fun get_local_class(v: AbsSyntaxVisitor): nullable MMLocalClass
do
var name = n_id.to_symbol
var mod = v.module
return local_class
end
- redef fun get_unchecked_stype(v)
+ # Retrieve corresponding static type.
+ # Display an error and return null if there is a problem
+ # But do not performs any subtype check.
+ # get_unchecked_stype should be called to check that the static type is fully valid
+ fun get_unchecked_stype(v: AbsSyntaxVisitor): nullable MMType
do
if _stype_cached then return _stype_cache
_stype_cached = true
_stype_cache = t
return t
end
-
- redef fun get_stype(v)
+
+ # Retrieve corresponding static type.
+ # Display an error and return null if there is a problem
+ fun get_stype(v: AbsSyntaxVisitor): nullable MMType
do
var t = get_unchecked_stype(v)
if t == null then return null
return t
end
- redef fun check_conform(v)
+ # Check that a static definition type is conform with regard to formal types
+ # Useful with get_unchecked_stype
+ # Remember that conformance check need that ancestors are totaly computed
+ fun check_conform(v: AbsSyntaxVisitor)
do
var st = get_unchecked_stype(v)
if st == null then return
end
end
-redef class PExpr
+redef class AExpr
# Is the expression node correcly typed
# Return false if typed was not yet computed or
# if an error occured during the typing computation
end
class AAbsAbsSendExpr
-special PExpr
+special AExpr
# The signature of the called property (require is_typed)
fun prop_signature: MMSignature is abstract
# The real arguments used (after star transformation) (require is_typed)
- fun arguments: Array[PExpr] is abstract
+ fun arguments: Array[AExpr] is abstract
end
class AAbsSendExpr
redef class ASendExpr
special ASuperInitCall
# Closure definitions
- fun closure_defs: nullable Array[PClosureDef] is abstract
+ fun closure_defs: nullable Array[AClosureDef] is abstract
end
redef class AReassignFormExpr
fun variable: ClosureVariable is abstract
end
-redef class PClosureDef
+redef class AClosureDef
# Associated closure
fun closure: MMClosure is abstract
nitlanguage / nit.git / blobdiff