llir 0.2.2

LLVM IR Binding
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

use llvm_sys::core::*;
use llvm_sys::prelude::*;
use std::ffi::CStr;
use std::os::raw::c_char;

pub unsafe fn raw_to_string(raw: *const c_char) -> String {
  let cstr = CStr::from_ptr(raw);
  cstr.to_str().expect("Failed to convert CStr").to_owned()
}

pub fn string_of_value(ptr: LLVMValueRef) -> String {
  let mut len = 0;
  let ptr = unsafe { LLVMGetValueName2(ptr, &mut len) };
  unsafe { raw_to_string(ptr) }
}

pub fn string_of_type(ptr: LLVMTypeRef) -> String {
  let ptr = unsafe { LLVMGetStructName(ptr) };
  unsafe { raw_to_string(ptr) }
}

pub fn string_of_debugloc_filename(ptr: LLVMValueRef) -> Option<String> {
  let mut len = 0;
  let ptr = unsafe { LLVMGetDebugLocFilename(ptr, &mut len) };
  if len == 0 || ptr.is_null() {
    None
  } else {
    Some(unsafe { raw_to_string(ptr) })
  }
}

pub fn string_of_debugloc_directory(ptr: LLVMValueRef) -> Option<String> {
  let mut len = 0;
  let ptr = unsafe { LLVMGetDebugLocDirectory(ptr, &mut len) };
  if len == 0 || ptr.is_null() {
    None
  } else {
    Some(unsafe { raw_to_string(ptr) })
  }
}