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|
use std::fs;
use llvm_bitcode::bitcode::{BitcodeElement, Payload, Record};
use llvm_bitcode::{BitStreamVisitor, Bitcode};
#[test]
fn test_bitcode() {
let data = fs::read("tests/fixtures/serialized.dia").unwrap();
let _bitcode = Bitcode::new(&data).unwrap();
let data = fs::read("tests/fixtures/simple.bc").unwrap();
let bitcode = Bitcode::new(&data).unwrap();
let module_block = bitcode
.elements
.iter()
.find(|ele| match ele {
BitcodeElement::Record(_) => false,
BitcodeElement::Block(block) => block.id == 8,
})
.unwrap();
let target_triple_record = module_block
.as_block()
.unwrap()
.elements
.iter()
.find(|ele| match ele {
BitcodeElement::Record(record) => record.id == 2,
BitcodeElement::Block(_) => false,
})
.unwrap()
.as_record()
.unwrap();
let fields: Vec<u8> = target_triple_record
.fields
.iter()
.map(|x| *x as u8)
.collect();
let target_triple = std::str::from_utf8(&fields).unwrap();
assert_eq!(target_triple, "x86_64-apple-macosx11.0.0");
}
#[test]
fn test_bitstream_reader() {
struct LoggingVisitor(Vec<String>);
impl BitStreamVisitor for LoggingVisitor {
fn should_enter_block(&mut self, id: u64) -> bool {
self.0.push(format!("entering block: {}", id));
true
}
fn did_exit_block(&mut self) {
self.0.push("exiting block".to_string());
}
fn visit(&mut self, record: Record) {
let payload = if let Some(payload) = &record.payload {
match payload {
Payload::Array(ele) => format!("array({} elements)", ele.len()),
Payload::Blob(blob) => format!("blob({} bytes)", blob.len()),
Payload::Char6String(s) => s.to_string(),
}
} else {
"none".to_string()
};
self.0.push(format!(
"Record (id: {}, fields: {:?}, payload: {}",
record.id, record.fields, payload
));
}
}
let data = fs::read("tests/fixtures/serialized.dia").unwrap();
let mut visitor = LoggingVisitor(Vec::new());
Bitcode::read(&data, &mut visitor).unwrap();
assert_eq!(
visitor.0,
&[
"entering block: 8",
"Record (id: 1, fields: [1], payload: none",
"exiting block",
"entering block: 9",
"Record (id: 6, fields: [1, 0, 0, 100], payload: blob(100 bytes)",
"Record (id: 2, fields: [3, 1, 53, 28, 0, 0, 0, 34], payload: blob(34 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 1, 53, 28, 0, 0, 0, 59], payload: blob(59 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 1, 113, 1, 0, 0, 0, 38], payload: blob(38 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 1, 113, 1, 0, 0, 0, 20], payload: blob(20 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 6, fields: [2, 0, 0, 98], payload: blob(98 bytes)",
"Record (id: 2, fields: [3, 2, 21, 69, 0, 0, 0, 34], payload: blob(34 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 2, 21, 69, 0, 0, 0, 22], payload: blob(22 bytes)",
"Record (id: 7, fields: [2, 21, 69, 0, 2, 21, 69, 0, 1], payload: blob(1 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 2, 21, 69, 0, 0, 0, 42], payload: blob(42 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 2, 21, 69, 0, 0, 0, 22], payload: blob(22 bytes)",
"Record (id: 7, fields: [2, 21, 69, 0, 2, 21, 69, 0, 1], payload: blob(1 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 6, fields: [3, 0, 0, 84], payload: blob(84 bytes)",
"Record (id: 2, fields: [3, 3, 38, 28, 0, 0, 0, 34], payload: blob(34 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 3, 38, 28, 0, 0, 0, 59], payload: blob(59 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 3, 66, 1, 0, 0, 0, 38], payload: blob(38 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 3, 66, 1, 0, 0, 0, 20], payload: blob(20 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 6, fields: [4, 0, 0, 93], payload: blob(93 bytes)",
"Record (id: 2, fields: [3, 4, 15, 46, 0, 0, 0, 40], payload: blob(40 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 4, 15, 46, 0, 0, 0, 22], payload: blob(22 bytes)",
"Record (id: 7, fields: [4, 15, 46, 0, 4, 15, 46, 0, 1], payload: blob(1 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 4, 15, 46, 0, 0, 0, 42], payload: blob(42 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 2, fields: [3, 4, 15, 46, 0, 0, 0, 22], payload: blob(22 bytes)",
"Record (id: 7, fields: [4, 15, 46, 0, 4, 15, 46, 0, 1], payload: blob(1 bytes)",
"exiting block",
"entering block: 9",
"Record (id: 6, fields: [5, 0, 0, 72], payload: blob(72 bytes)",
"Record (id: 2, fields: [3, 5, 34, 13, 0, 0, 0, 44], payload: blob(44 bytes)",
"Record (id: 3, fields: [5, 34, 13, 0, 5, 34, 26, 0], payload: none",
"exiting block"
]
)
}
|
