StructStaticMember¶
A component reached through the type rather than through an object.
Declaration¶
Syntax¶
StructStaticMember(expr v, symbol m, ttype type, expr? value)
Arguments¶
Argument |
Description |
|---|---|
|
the expression the type is taken from. |
|
the component’s symbol. |
|
the type of the component. |
|
the compile time value of the expression, when the frontend could fold it; |
Return values¶
The value of the expression.
Description¶
LPython’s class variables are shared by every instance, so reading one does not read the object. Fortran has no such component, and the Fortran frontend uses StructInstanceMember throughout.
Examples¶
(StructStaticMember
:v (Var
:v (SymbolRef 3 "p")
)
:m (SymbolRef 2 "x")
:type (Integer
:kind 4
)
:value nil
)
It comes from this complete ASR text document:
(TranslationUnit
:symtab (SymbolTable
:id 0
:symbols {
"m" (Module
:symtab (SymbolTable
:id 1
:symbols {
"point" (Struct
:symtab (SymbolTable
:id 2
:symbols {
"x" (Variable
:parent_symtab 2
:name "x"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Integer
:kind 4
)
:type_declaration nil
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
"y" (Variable
:parent_symtab 2
:name "y"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Real
:kind 4
)
:type_declaration nil
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
}
)
:name "point"
:struct_signature (StructType
:data_member_types [
(Integer
:kind 4
)
(Real
:kind 4
)
]
:member_function_types []
:is_cstruct false
:is_unlimited_polymorphic false
)
:dependencies []
:members [
"x"
"y"
]
:member_functions []
:abi :Source
:access :Public
:is_packed false
:is_abstract false
:is_sequence false
:initializers []
:alignment nil
:parent nil
:kind_params []
)
}
)
:name "m"
:parent_module nil
:dependencies []
:loaded_from_mod false
:intrinsic false
:has_submodules false
)
"main" (Program
:symtab (SymbolTable
:id 3
:symbols {
"i" (Variable
:parent_symtab 3
:name "i"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Integer
:kind 4
)
:type_declaration nil
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
"p" (Variable
:parent_symtab 3
:name "p"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (StructType
:data_member_types [
(Integer
:kind 4
)
(Real
:kind 4
)
]
:member_function_types []
:is_cstruct false
:is_unlimited_polymorphic false
)
:type_declaration (SymbolRef 3 "point")
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
"point" (ExternalSymbol
:parent_symtab 3
:name "point"
:external (SymbolRef 1 "point")
:module_name "m"
:scope_names []
:original_name "point"
:access :Public
)
}
)
:name "main"
:dependencies [
"m"
]
:body [
(Assignment
:target (Var
:v (SymbolRef 3 "i")
)
:value (StructStaticMember
:v (Var
:v (SymbolRef 3 "p")
)
:m (SymbolRef 2 "x")
:type (Integer
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
]
)
}
)
:items []
)