# Concrete NIT source module
class MMSrcModule
-special MMModule
+ super MMModule
+ # 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 ANode] = new HashMap[Object, nullable ANode]
+
+ # Release the AST
+ fun clear_ast do _nodes = null
+
# The related AST node
- readable var _node: AModule
+ fun node: AModule do return nodes(self).as(AModule)
# Concrete NIT source local classs by name
readable var _src_local_classes: Map[Symbol, MMSrcLocalClass]
init(c: MMContext, source: AModule, dir: MMDirectory, name: Symbol, loc: Location)
do
super(name, dir, c, loc)
- _node = source
+ nodes(self) = source
_src_local_classes = new HashMap[Symbol, MMSrcLocalClass]
end
+
+ 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 ANode)
+ do
+ assert not _nodes.has_key(o)
+ _nodes[o] = n
+ end
+end
+
+redef class MMModule
+ # The AST node of some entity
+ private fun nodes(o: Object): nullable ANode do return null
+ # The AST node of some entity
+ 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
- var pm = intro.module
+ fun check_visibility(v: AbsSyntaxVisitor, n: ANode, cm: MMSrcModule): Bool do
+ var pm = intro.mmmodule
assert pm isa MMSrcModule
var vpm = cm.visibility_for(pm)
if vpm == 3 then
# Concrete NIT source local classes
class MMSrcLocalClass
-special MMConcreteClass
- # The related AST nodes
- readable var _nodes: Array[PClassdef]
+ super MMConcreteClass
+ # The first related AST node (if any)
+ fun node: nullable AClassdef do return mmmodule.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)
- if cla == null then
- _nodes = new Array[PClassdef]
- else
- _nodes = [cla]
- end
+ mod.nodes(self) = cla
_src_local_properties = new HashMap[Symbol, MMLocalProperty]
end
end
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
- var pm = local_class.module
+ fun check_visibility(v: AbsSyntaxVisitor, n: ANode, cm: MMSrcModule, allows_protected: Bool): Bool do
+ var pm = local_class.mmmodule
assert pm isa MMSrcModule
var vpm = cm.visibility_for(pm)
if vpm == 3 then
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
# Concrete NIT source attribute
class MMSrcAttribute
-special MMAttribute
- redef readable var _node: AAttrPropdef
+ super MMAttribute
+ redef fun node: nullable AAttrPropdef do return mmmodule.nodes(self).as(nullable AAttrPropdef)
init(name: Symbol, cla: MMLocalClass, n: AAttrPropdef)
do
super(name, cla)
- _node = n
+ cla.mmmodule.nodes(self) = n
end
end
# Concrete NIT source method
class MMSrcMethod
-special MMMethod
+ super MMMethod
redef fun is_intern do return false
redef fun is_abstract do return false
+ redef fun extern_name do return null
end
# Concrete NIT source method for an automatic accesor
class MMAttrImplementationMethod
-special MMSrcMethod
- redef readable var _node: AAttrPropdef
+ super MMSrcMethod
+ redef fun node: nullable AAttrPropdef do return mmmodule.nodes(self).as(nullable AAttrPropdef)
init(name: Symbol, cla: MMLocalClass, n: AAttrPropdef)
do
super(name, cla)
- _node = n
+ cla.mmmodule.nodes(self) = n
end
end
# Concrete NIT source method for an automatic read accesor
class MMReadImplementationMethod
-special MMAttrImplementationMethod
+ super MMAttrImplementationMethod
init(name: Symbol, cla: MMLocalClass, n: AAttrPropdef)
do
super(name, cla, n)
# Concrete NIT source method for an automatic write accesor
class MMWriteImplementationMethod
-special MMAttrImplementationMethod
+ super MMAttrImplementationMethod
init(name: Symbol, cla: MMLocalClass, n: AAttrPropdef)
do
super(name, cla, n)
# Concrete NIT source method for an explicit method
class MMMethSrcMethod
-special MMSrcMethod
+ super MMSrcMethod
redef readable var _is_init: Bool
redef readable var _is_intern: Bool
redef readable var _is_abstract: Bool
- redef readable var _node: nullable AMethPropdef
+ redef readable writable var _extern_name: nullable String # Will be computed during MMBuilder
+ redef fun node: nullable AMethPropdef do return mmmodule.nodes(self).as(nullable AMethPropdef)
init(name: Symbol, cla: MMLocalClass, n: nullable AMethPropdef)
do
super(name, cla)
- _node = n
+ cla.mmmodule.nodes(self) = n
_is_init = node isa AConcreteInitPropdef
_is_intern = node isa AInternMethPropdef
_is_abstract = node isa ADeferredMethPropdef
+ _extern_name = null
end
end
# Concrete NIT source virtual type
class MMSrcTypeProperty
-special MMLocalProperty
-special MMTypeProperty
- redef readable var _node: ATypePropdef
+ super MMLocalProperty
+ super MMTypeProperty
init(name: Symbol, cla: MMLocalClass, n: ATypePropdef)
do
super(name, cla)
- _node = n
end
end
# Concrete NIT implicit constructor
class MMImplicitInit
-special MMMethSrcMethod
+ super MMMethSrcMethod
fun super_init: nullable MMLocalProperty is abstract
redef fun is_init do return true
readable var _unassigned_attributes: Array[MMSrcAttribute]
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
# Variable declared with 'var'
class VarVariable
-special Variable
+ super 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
+ super 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
+ super 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
# Lives in the same namespace than variables
class ClosureVariable
-special Variable
+ super Variable
redef fun kind do return once "closure"
# 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
# Visitor used during the syntax analysis
class AbsSyntaxVisitor
-special Visitor
+ super Visitor
+ fun get_type_by_name(clsname: Symbol): MMType
+ do
+ if not _mmmodule.has_global_class_named(clsname) then _tc.fatal_error(_mmmodule.location, "Missing necessary class: \"{clsname}\"")
+ var cls = _mmmodule.class_by_name(clsname)
+ return cls.get_type
+ end
+
+ fun get_instantiated_type_by_name(clsname: Symbol, vtype: Array[MMType]): MMType
+ do
+ if not _mmmodule.has_global_class_named(clsname) then _tc.fatal_error(_mmmodule.location, "Missing necessary class: \"{clsname}\"")
+ var cls = _mmmodule.class_by_name(clsname)
+ return cls.get_instantiate_type(vtype)
+ end
+
# The root type Object
fun type_object: MMType
do
- return _module.class_by_name(once ("Object".to_symbol)).get_type
+ return get_type_by_name(once ("Object".to_symbol))
end
# The primitive type Bool
fun type_bool: MMType
do
- return _module.class_by_name(once ("Bool".to_symbol)).get_type
+ return get_type_by_name(once ("Bool".to_symbol))
end
# The primitive type Int
fun type_int: MMType
do
- return _module.class_by_name(once ("Int".to_symbol)).get_type
+ return get_type_by_name(once ("Int".to_symbol))
end
# The primitive type Float
fun type_float: MMType
do
- return _module.class_by_name(once ("Float".to_symbol)).get_type
+ return get_type_by_name(once ("Float".to_symbol))
end
# The primitive type Char
fun type_char: MMType
do
- return _module.class_by_name(once ("Char".to_symbol)).get_type
+ return get_type_by_name(once ("Char".to_symbol))
end
# The primitive type String
fun type_string: MMType
do
- return _module.class_by_name(once ("String".to_symbol)).get_type
- end
-
- # The primitive type Collection[nullable Object]
- fun type_collection: MMType
- do
- return _module.class_by_name(once ("Collection".to_symbol)).get_instantiate_type([type_object.as_nullable])
+ return get_type_by_name(once ("String".to_symbol))
end
# The primitive type NativeString
fun type_nativestring: MMType
do
- return _module.class_by_name(once ("NativeString".to_symbol)).get_type
+ return get_type_by_name(once ("NativeString".to_symbol))
end
# The primitive type Array[?]
fun type_array(stype: MMType): MMType
do
- return _module.class_by_name(once ("Array".to_symbol)).get_instantiate_type([stype])
+ return get_instantiated_type_by_name(once ("Array".to_symbol), [stype])
end
# The primitive type Discrete
fun type_discrete: MMType
do
- return _module.class_by_name(once ("Discrete".to_symbol)).get_type
+ return get_type_by_name(once ("Discrete".to_symbol))
end
# The primitive type Range[?]
fun type_range(stype: MMType): MMType
do
- return _module.class_by_name(once ("Range".to_symbol)).get_instantiate_type([stype])
+ return get_instantiated_type_by_name(once ("Range".to_symbol), [stype])
end
# The primitive type of null
fun type_none: MMType
do
- return _module.type_none
+ return _mmmodule.type_none
+ end
+
+ fun get_method(recv: MMType, name: Symbol): MMMethod
+ do
+ if not recv.local_class.has_global_property_by_name(name) then
+ fatal_error(current_node, "Fatal Error: {recv} must have a property named {name}.")
+ end
+ return recv.local_class.select_method(name)
end
# The current module
- readable var _module: MMSrcModule
+ readable var _mmmodule: MMSrcModule
# The current class
fun local_class: MMSrcLocalClass do return _local_class.as(not null)
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(n.location, "{locate(n)}: {s}")
+ _tc.error(if n == null then null else n.hot_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(n.location, "{locate(n)}: {s}")
+ _tc.fatal_error(if n == null then null else n.hot_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(n.location, "{locate(n)}: {s}")
- end
-
- #
- fun locate(n: nullable PNode): String
- do
- if n != null then return n.locate
- return _module.location.file
+ _tc.warning(if n == null then null else n.hot_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
- print("{n.locate} not typed but not error")
+ print("{n.location} not typed but not error")
abort
end
# An error occured in a sub node,
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
node = n
end
end
+ assert stype != null
for n in nodes do
- if not n.stype < stype.as(not null) then
+ if not n.stype < stype then
if node == null then
error(n, "Type error: no most general type. Got {n.stype} and {stype}.")
else
- error(n, "Type error: no most general type. Got {n.stype} and {stype} at {node.locate}.")
+ error(n, "Type error: no most general type. Got {n.stype} and {stype} at {node.location.relative_to(n.location)}.")
end
return null
end
return stype
end
- protected init(tc: ToolContext, module: MMSrcModule)
+ protected init(tc: ToolContext, mmmodule: MMSrcModule)
do
_tc = tc
- _module = module
+ _mmmodule = mmmodule
end
end
###############################################################################
-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 AClassdef of the same class (if any)
+ readable writable var _next_node: nullable AClassdef = null
+end
+
+redef class APropdef
+ # Associated 'self' variable
+ fun self_var: ParamVariable is abstract
end
redef class AAttrPropdef
redef class AMethPropdef
# Associated method (MM entity)
fun method: MMMethSrcMethod is abstract
-
- # Associated 'self' variable
- fun self_var: ParamVariable is abstract
end
redef class ATypePropdef
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
+ var mod = v.mmmodule
var cla = v.local_class
if cla.formal_dict.has_key(name) or cla.has_global_property_by_name(name) then
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
var name = n_id.to_symbol
- var mod = v.module
+ var mod = v.mmmodule
var cla = v.local_class
var t: nullable MMType
_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
+ super 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
+ # The raw arguments used (without vararg transformation) (require is_typed)
+ fun raw_arguments: Array[AExpr] is abstract
end
class AAbsSendExpr
-special AAbsAbsSendExpr
+ super AAbsAbsSendExpr
# The invoked method (require is_typed)
fun prop: MMMethod is abstract
end
class ASuperInitCall
-special AAbsSendExpr
+ super AAbsSendExpr
end
redef class ASuperExpr
-special ASuperInitCall
+ super ASuperInitCall
fun init_in_superclass: nullable MMMethod is abstract
end
redef class ANewExpr
-special AAbsSendExpr
+ super AAbsSendExpr
end
redef class ASendExpr
-special ASuperInitCall
+ super ASuperInitCall
# Closure definitions
- fun closure_defs: nullable Array[PClosureDef] is abstract
+ fun closure_defs: nullable Array[AClosureDef] is abstract
end
redef class AReassignFormExpr
end
class ASendReassignExpr
-special ASendExpr
-special AReassignFormExpr
+ super ASendExpr
+ super AReassignFormExpr
# The invoked method used to read (require is_typed)
# prop is the method used to write
fun read_prop: MMMethod is abstract
end
redef class ACallReassignExpr
-special ASendReassignExpr
+ super ASendReassignExpr
end
redef class ABraReassignExpr
-special ASendReassignExpr
+ super ASendReassignExpr
end
redef class AAttrFormExpr
fun attr_type: MMType is abstract
end
-redef class AStringFormExpr
- fun meth_with_native: MMMethod is abstract
-end
-
redef class ASuperstringExpr
- fun meth_with_capacity: MMMethod is abstract
- fun meth_add: MMMethod is abstract
- fun meth_to_s: MMMethod is abstract
fun atype: MMType is abstract
end
-redef class AArrayExpr
- fun meth_with_capacity: MMMethod is abstract
- fun meth_add: MMMethod is abstract
-end
-
-redef class ARangeExpr
- fun meth_init: MMMethod is abstract
-end
-
redef class AVardeclExpr
# Assiociated local variable
fun variable: VarVariable is abstract
redef class AForExpr
# Associated automatic local variable
- fun variable: AutoVariable is abstract
- fun meth_iterator: MMMethod is abstract
- fun meth_is_ok: MMMethod is abstract
- fun meth_item: MMMethod is abstract
- fun meth_next: MMMethod is abstract
+ fun variables: Array[AutoVariable] is abstract
end
redef class ASelfExpr
# Associated local variable
fun variable: ParamVariable is abstract
- #readable writable var _variable: nullable ParamVariable
end
redef class AVarFormExpr
# Associated local variable
fun variable: Variable is abstract
- #readable writable var _variable: nullable Variable
end
redef class AClosureCallExpr
-special AAbsAbsSendExpr
+ super AAbsAbsSendExpr
# Associated closure variable
fun variable: ClosureVariable is abstract
- #readable writable var _variable: nullable ClosureVariable
end
-redef class PClosureDef
+redef class AClosureDef
# Associated closure
- #readable writable var _closure: nullable MMClosure
fun closure: MMClosure is abstract
# Automatic variables
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