TupleLen¶
The number of elements of a tuple.
Declaración¶
Sintaxis¶
TupleLen(expr arg, ttype type, expr value)
Argumentos¶
Argument |
Descripción |
|---|---|
|
the tuple. |
|
the type of the expression. |
|
the length. It is always known, so this member is required. |
Valores devueltos¶
The value of the expression.
Descripción¶
len(t). The length is part of the type, so unlike
ListLen the answer is always known at compile time, and the
value member is required rather than optional.
Ejemplos¶
(TupleLen
:arg (Var
:v (SymbolRef 1 "t")
)
:type (Integer
:kind 4
)
:value (IntegerConstant
:n 2
:type (Integer
:kind 4
)
:intboz_type :Decimal
)
)
It comes from this complete ASR text document:
(TranslationUnit
:symtab (SymbolTable
:id 0
:symbols {
"main" (Program
:symtab (SymbolTable
:id 1
:symbols {
"i" (Variable
:parent_symtab 1
: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 1
:name "p"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Logical
: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 []
)
"t" (Variable
:parent_symtab 1
:name "t"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Tuple
:type [
(Integer
:kind 4
)
(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 []
)
"u" (Variable
:parent_symtab 1
:name "u"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Tuple
:type [
(Integer
:kind 4
)
(Real
:kind 4
)
(Integer
:kind 4
)
(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 "main"
:dependencies []
:body [
(Assignment
:target (Var
:v (SymbolRef 1 "t")
)
:value (TupleConstant
:elements [
(IntegerConstant
:n 1
:type (Integer
:kind 4
)
:intboz_type :Decimal
)
(RealConstant
:r 2.0
:type (Real
:kind 4
)
)
]
:type (Tuple
:type [
(Integer
:kind 4
)
(Real
:kind 4
)
]
)
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "i")
)
:value (TupleLen
:arg (Var
:v (SymbolRef 1 "t")
)
:type (Integer
:kind 4
)
:value (IntegerConstant
:n 2
:type (Integer
:kind 4
)
:intboz_type :Decimal
)
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "u")
)
:value (TupleConcat
:left (Var
:v (SymbolRef 1 "t")
)
:right (Var
:v (SymbolRef 1 "t")
)
:type (Tuple
:type [
(Integer
:kind 4
)
(Real
:kind 4
)
(Integer
:kind 4
)
(Real
:kind 4
)
]
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "p")
)
:value (TupleCompare
:left (Var
:v (SymbolRef 1 "t")
)
:op :Eq
:right (Var
:v (SymbolRef 1 "t")
)
:type (Logical
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "p")
)
:value (TupleContains
:left (Var
:v (SymbolRef 1 "t")
)
:right (IntegerConstant
:n 1
:type (Integer
:kind 4
)
:intboz_type :Decimal
)
:type (Logical
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "i")
)
:value (TupleItem
:a (Var
:v (SymbolRef 1 "t")
)
:pos (IntegerConstant
:n 0
:type (Integer
:kind 4
)
:intboz_type :Decimal
)
:type (Integer
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
]
)
}
)
:items []
)