Builtin Types

This page lists Shape’s core surface types and their intended use.

These are module-owned surface names, not user-defined globals. Import the ones you use explicitly. For the full target model, see Names and Scope.

from std::core::intrinsics use {
  Vec,
  Mat,
  Table,
  DateTime,
  Result,
  Option,
  AnyError,
  HashMap
}
print("imported")

// Prelude convenience does not change module ownership.
print("ok")

The types on this page are not prelude names.

Scalar Types

Type	Description
`int`	Signed 64-bit integer (default)
`number`	Floating-point numeric value (f64)
`bool`	Boolean (`true` / `false`)
`string`	UTF-8 text
`none`	Explicit absence value

Width-Specific Integers

Type	Description
`i8` / `u8`	8-bit signed / unsigned
`i16` / `u16`	16-bit signed / unsigned
`i32` / `u32`	32-bit signed / unsigned
`u64`	64-bit unsigned

Width types support literal suffixes (42i8, 255u8) and out-of-range literals are rejected at compile time. Overflow-arithmetic semantics are not yet uniform across execution modes — see Integer Width Types for the full runtime-support details. Use int for general-purpose integer work.

Generic Container Types

Type	Description
`Vec<T>`	Ordered homogeneous sequence
`Mat<T>`	Dense matrix (numeric workloads)
`Table<T>`	Typed row-oriented data
`Option<T>`	Optional value (`Some(v)` / `None`)
`Result<T, E>`	Fallible value (`Ok(v)` / `Err(e)`)
`HashMap<K, V>`	Ordered key-value map

Notes

[] literals infer as Vec<T>.
Table<T> and Vec<T> are separate abstractions:
- Vec<T> is positional sequence data.
- Table<T> is named-column row data.
Mat<T> is the canonical matrix surface type name. Matrix<T> is not accepted.
print is prelude-provided; the types on this page are not.