1 // This is unused when no platforms with the new backend are enabled.
2 #![allow(dead_code)]
3 
4 use crate::binemit::{Addend, CodeOffset, CodeSink, Reloc};
5 use crate::ir::Value;
6 use crate::ir::{ConstantOffset, ExternalName, Function, JumpTable, Opcode, SourceLoc, TrapCode};
7 use crate::isa::TargetIsa;
8 
9 use alloc::vec::Vec;
10 use std::string::String;
11 
12 pub struct TestCodeSink {
13     bytes: Vec<u8>,
14 }
15 
16 impl TestCodeSink {
17     /// Create a new TestCodeSink.
new() -> TestCodeSink18     pub fn new() -> TestCodeSink {
19         TestCodeSink { bytes: vec![] }
20     }
21 
22     /// Return the code emitted to this sink as a hex string.
stringify(&self) -> String23     pub fn stringify(&self) -> String {
24         // This is pretty lame, but whatever ..
25         use std::fmt::Write;
26         let mut s = String::with_capacity(self.bytes.len() * 2);
27         for b in &self.bytes {
28             write!(&mut s, "{:02X}", b).unwrap();
29         }
30         s
31     }
32 }
33 
34 impl CodeSink for TestCodeSink {
offset(&self) -> CodeOffset35     fn offset(&self) -> CodeOffset {
36         self.bytes.len() as CodeOffset
37     }
38 
put1(&mut self, x: u8)39     fn put1(&mut self, x: u8) {
40         self.bytes.push(x);
41     }
42 
put2(&mut self, x: u16)43     fn put2(&mut self, x: u16) {
44         self.bytes.push((x >> 0) as u8);
45         self.bytes.push((x >> 8) as u8);
46     }
47 
put4(&mut self, mut x: u32)48     fn put4(&mut self, mut x: u32) {
49         for _ in 0..4 {
50             self.bytes.push(x as u8);
51             x >>= 8;
52         }
53     }
54 
put8(&mut self, mut x: u64)55     fn put8(&mut self, mut x: u64) {
56         for _ in 0..8 {
57             self.bytes.push(x as u8);
58             x >>= 8;
59         }
60     }
61 
reloc_block(&mut self, _rel: Reloc, _block_offset: CodeOffset)62     fn reloc_block(&mut self, _rel: Reloc, _block_offset: CodeOffset) {}
63 
reloc_external( &mut self, _srcloc: SourceLoc, _rel: Reloc, _name: &ExternalName, _addend: Addend, )64     fn reloc_external(
65         &mut self,
66         _srcloc: SourceLoc,
67         _rel: Reloc,
68         _name: &ExternalName,
69         _addend: Addend,
70     ) {
71     }
72 
reloc_constant(&mut self, _rel: Reloc, _constant_offset: ConstantOffset)73     fn reloc_constant(&mut self, _rel: Reloc, _constant_offset: ConstantOffset) {}
74 
reloc_jt(&mut self, _rel: Reloc, _jt: JumpTable)75     fn reloc_jt(&mut self, _rel: Reloc, _jt: JumpTable) {}
76 
trap(&mut self, _code: TrapCode, _srcloc: SourceLoc)77     fn trap(&mut self, _code: TrapCode, _srcloc: SourceLoc) {}
78 
begin_jumptables(&mut self)79     fn begin_jumptables(&mut self) {}
80 
begin_rodata(&mut self)81     fn begin_rodata(&mut self) {}
82 
end_codegen(&mut self)83     fn end_codegen(&mut self) {}
84 
add_stackmap(&mut self, _val_list: &[Value], _func: &Function, _isa: &dyn TargetIsa)85     fn add_stackmap(&mut self, _val_list: &[Value], _func: &Function, _isa: &dyn TargetIsa) {}
86 
add_call_site(&mut self, _opcode: Opcode, _srcloc: SourceLoc)87     fn add_call_site(&mut self, _opcode: Opcode, _srcloc: SourceLoc) {}
88 }
89