?
suffix used in safe call operator.nitc :: ASafeExpr :: defaultinit
nitc :: ASafeExpr :: init_asafeexpr
nitc :: typing $ ASafeExpr :: accept_typing
nitc :: naive_interpreter $ ASafeExpr :: expr
Evaluate the node as a possible expression.nitc :: abstract_compiler $ ASafeExpr :: expr
Try to compile self as an expressionnitc :: parser_prod $ ASafeExpr :: replace_child
Replace a child with an other node in the ASTnitc :: AExpr :: _after_flow_context
The flow after the full evaluation of the expression/statementnitc :: AExpr :: _comprehension
Is non-null ifself
is a leaf of a comprehension array construction.
nitc :: Prod :: _first_location
Location on the first token after the start of a productionnitc :: Prod :: _first_token
The first token of the production in the ASTnitc :: AExpr :: _implicit_cast_to
If required, the following implicit cast.as(XXX)
nitc :: ANode :: _is_broken
The indication that the node did not pass some semantic verifications.nitc :: Prod :: _last_token
The last token of the production in the ASTnitc :: Prod :: _n_annotations
All the annotations attached directly to the nodenitc :: AExpr :: _vararg_decl
It indicates the number of arguments collected as a vararg.nitc :: AExpr :: _variable_cache
nitc :: ANode :: accept_ast_validation
nitc :: ANode :: accept_auto_super_init
nitc :: AExpr :: accept_explain_assert
Fillv
to explain this node if the parent assert fails
nitc :: ANode :: accept_flow_visitor
nitc :: ANode :: accept_forward_analysis
Apply the forward analysisv
to self
.
nitc :: ANode :: accept_literal
nitc :: ANode :: accept_post_typing
nitc :: ANode :: accept_pretty_printer
Start visit ofself
using a PrettyPrinterVisitor
nitc :: ANode :: accept_reaching_defs
Apply a ReachingDefsAnalysis toself
.
nitc :: ANode :: accept_regex_visitor
nitc :: ANode :: accept_scope_visitor
nitc :: ANode :: accept_simple_misc
nitc :: ANode :: accept_string_finder
nitc :: AExpr :: accept_typing
nitc :: AExpr :: after_flow_context
The flow after the full evaluation of the expression/statementnitc :: AExpr :: after_flow_context=
The flow after the full evaluation of the expression/statementnitc :: ANode :: after_simple_misc
nitc :: AExpr :: allocate_mtype
Make themtype
of the expression live
nitc :: ANode :: bad_expr_message
An additional information message to explain the role of a child expression.nitc :: ANode :: check_callsite
core :: Object :: class_factory
Implementation used byget_class
to create the specific class.
nitc :: ANode :: collect_annotations_by_name
Do a deep search and return an array of node that are annotatednitc :: Prod :: collect_comments
Collect allTComment
contained in the production
nitc :: ANode :: collect_length
Collect the length (inChar
) of the node.
nitc :: ANode :: collect_tokens_by_text
Do a deep search and return an array of tokens that match a given textnitc :: ANode :: common_parent
The most specific common parent betweenself
and other
nitc :: AExpr :: comprehension
Is non-null ifself
is a leaf of a comprehension array construction.
nitc :: AExpr :: comprehension=
Is non-null ifself
is a leaf of a comprehension array construction.
nitc :: ANode :: create_contracts
nitc :: ANode :: decorate_tag
Add aditionnal information on a child-token and return an additionnal HInfoBox on itnitc :: Prod :: defaultinit
nitc :: ASafeExpr :: defaultinit
core :: Cloneable :: defaultinit
nitc :: ANode :: defaultinit
nitc :: AExpr :: defaultinit
core :: Object :: defaultinit
nitc :: AExpr :: detach_with_placeholder
Thedetach
method completely remove the node in the parent.
nitc :: ANode :: do_cloneable
nitc :: Prod :: first_location
Location on the first token after the start of a productionnitc :: Prod :: first_location=
Location on the first token after the start of a productionnitc :: Prod :: first_token
The first token of the production in the ASTnitc :: Prod :: first_token=
The first token of the production in the ASTnitc :: ANode :: force_block=
Forceself
to be rendered as a block.
nitc :: ANode :: force_inline=
Forceself
to be rendered as a line.
nitc :: ANode :: full_transform_visitor
nitc :: AExpr :: generate_basic_blocks
Generate recursively basic block for this expressionnitc :: Prod :: get_annotations
Return all its annotations of a given name in the order of their declarationnitc :: Prod :: get_single_annotation
Try to get its single annotation with a given namenitc :: ANode :: hot_location
The location of the important part of the node (identifier or whatever)nitc :: AExpr :: implicit_cast_to
If required, the following implicit cast.as(XXX)
nitc :: AExpr :: implicit_cast_to=
If required, the following implicit cast.as(XXX)
nitc :: ASafeExpr :: init_asafeexpr
nitc :: ANode :: is_broken=
The indication that the node did not pass some semantic verifications.nitc :: ANode :: is_noserialize
Is this node annotated to not be made serializable?core :: Object :: is_same_instance
Return true ifself
and other
are the same instance (i.e. same identity).
core :: Object :: is_same_serialized
Isself
the same as other
in a serialization context?
core :: Object :: is_same_type
Return true ifself
and other
have the same dynamic type.
nitc :: ANode :: is_serialize
Is this node annotated to be made serializable?nitc :: ANode :: is_structural
Isself
a token or a pure-structural production like AQId
?
nitc :: Prod :: last_token
The last token of the production in the ASTnitc :: Prod :: last_token=
The last token of the production in the ASTnitc :: AExpr :: make_var_read
Return a new variable read that contains the value of the expressionnitc :: ANode :: must_be_block
Doesself
have to be rendered as a block?
nitc :: ANode :: must_be_inline
Doesself
have be rendered as a line?
nitc :: Prod :: n_annotations
All the annotations attached directly to the nodenitc :: Prod :: n_annotations=
All the annotations attached directly to the nodecore :: Object :: native_class_name
The class name of the object in CString format.core :: Object :: output_class_name
Display class name on stdout (debug only).nitc :: ANode :: parentize_tokens
Visit the AST and computes advanced AST attributes on Tokens and Prodnitc :: ANode :: replace_child
Replace a child with an other node in the ASTnitc :: ANode :: replace_with
Replace itself with an other node in the ASTnitc :: Prod :: start_token
The token where the production really start (skipping ADoc).nitc :: AExpr :: vararg_decl
It indicates the number of arguments collected as a vararg.nitc :: AExpr :: vararg_decl=
It indicates the number of arguments collected as a vararg.nitc :: AExpr :: variable_cache
nitc :: AExpr :: variable_cache=
nitc :: AExpr :: warn_parentheses
Warn in case of superfluous parenthesesnitc :: ANode :: was_inline
Doesself
was written in one line before transformation?
redef class ASafeExpr
init init_asafeexpr (
n_expr: nullable AExpr,
n_quest: nullable TQuest
)
do
_n_expr = n_expr.as(not null)
n_expr.parent = self
_n_quest = n_quest.as(not null)
n_quest.parent = self
end
redef fun replace_child(old_child: ANode, new_child: nullable ANode)
do
if _n_expr == old_child then
n_expr = new_child.as(AExpr)
return
end
if _n_quest == old_child then
n_quest = new_child.as(TQuest)
return
end
end
redef fun n_expr=(node)
do
_n_expr = node
node.parent = self
end
redef fun n_quest=(node)
do
_n_quest = node
node.parent = self
end
redef fun visit_all(v: Visitor)
do
v.enter_visit(_n_expr)
v.enter_visit(_n_quest)
end
end
src/parser/parser_prod.nit:7410,1--7451,3
redef class ASafeExpr
redef fun accept_typing(v)
do
var mtype = v.visit_expr(n_expr)
if mtype == null then return # Skip error
if mtype isa MNullType then
# While `null?.foo` is semantically well defined and should not execute `foo` and just return `null`,
# currently `null.foo` is forbidden so it seems coherent to also forbid `null?.foo`
v.modelbuilder.error(self, "Error: safe operator `?` on `null`.")
return
end
self.mtype = mtype.as_notnull
if not v.can_be_null(mtype) then
v.display_warning(self, "useless-safe", "Warning: useless safe operator `?` on non-nullable value.")
return
end
end
end
src/semantize/typing.nit:2584,1--2604,3