Struct rspirv::binary::Parser [−][src]
pub struct Parser<'c, 'd> { /* fields omitted */ }
Expand description
The SPIR-V binary parser.
Takes in a vector of bytes and a consumer, this parser will invoke the consume methods on the consumer for the module header and each instruction parsed.
Different from the Decoder
,
this parser is high-level; it has knowlege of the SPIR-V grammar.
It will parse instructions according to SPIR-V grammar.
Examples
use spirv::{AddressingModel, MemoryModel};
use rspirv::binary::Parser;
use rspirv::dr::{Loader, Operand};
fn main() {
let bin = vec![
// Magic number. Version number: 1.0.
0x03, 0x02, 0x23, 0x07, 0x00, 0x00, 0x01, 0x00,
// Generator number: 0. Bound: 0.
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
// Reserved word: 0.
0x00, 0x00, 0x00, 0x00,
// OpMemoryModel. Logical.
0x0e, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00,
// GLSL450.
0x01, 0x00, 0x00, 0x00];
let mut loader = Loader::new(); // You can use your own consumer here.
{
let p = Parser::new(&bin, &mut loader);
p.parse().unwrap();
}
let module = loader.module();
assert_eq!((1, 0), module.header.unwrap().version());
let m = module.memory_model.as_ref().unwrap();
assert_eq!(Operand::AddressingModel(AddressingModel::Logical),
m.operands[0]);
assert_eq!(Operand::MemoryModel(MemoryModel::GLSL450),
m.operands[1]);
}