/** Provides classes for working with architectures. */

import go

/**

* An architecture that is valid in a build constraint.

*

* Information obtained from

* https://github.com/golang/go/blob/e125ccd10ea191101dbc31f0dd39a98f9d3ab929/src/go/types/gccgosizes.go

* where the first field of the struct is 4 for 32-bit architectures

* and 8 for 64-bit architectures.

*/

class Architecture extends string {

int bitSize;

Architecture() {

this in [

"386", "amd64p32", "arm", "armbe", "m64k", "mips", "mipsle", "mips64p32", "mips64p32le",

"nios2", "ppc", "riscv", "s390", "sh", "shbe", "sparc"

] and

bitSize = 32

or

this in [

"alpha", "amd64", "arm64", "arm64be", "ia64", "mips64", "mips64le", "ppc64", "ppc64le",

"riscv64", "s390x", "sparc64", "wasm"

] and

bitSize = 64

}

/**

* Gets the integer and pointer type width for this architecture.

*

* As of the time of writing, this appears to always be identical -- there aren't

* Go architectures with 64-bit pointers but 32-bit ints, for example.

*/

int getBitSize() { result = bitSize }

}