tinc_build/codegen/cel/functions/
bytes.rs

1use syn::parse_quote;
2use tinc_cel::CelValue;
3
4use super::Function;
5use crate::codegen::cel::compiler::{CompileError, CompiledExpr, CompilerCtx, ConstantCompiledExpr, RuntimeCompiledExpr};
6use crate::codegen::cel::types::CelType;
7
8#[derive(Debug, Clone, Default)]
9pub(crate) struct Bytes;
10
11impl Function for Bytes {
12    fn name(&self) -> &'static str {
13        "bytes"
14    }
15
16    fn syntax(&self) -> &'static str {
17        "<this>.bytes()"
18    }
19
20    fn compile(&self, ctx: CompilerCtx) -> Result<CompiledExpr, CompileError> {
21        let Some(this) = ctx.this else {
22            return Err(CompileError::syntax("missing this", self));
23        };
24
25        if !ctx.args.is_empty() {
26            return Err(CompileError::syntax("takes no arguments", self));
27        }
28
29        match this.into_cel()? {
30            CompiledExpr::Constant(ConstantCompiledExpr { value }) => {
31                Ok(CompiledExpr::constant(CelValue::cel_to_bytes(value)?))
32            }
33            CompiledExpr::Runtime(RuntimeCompiledExpr { expr, .. }) => Ok(CompiledExpr::runtime(
34                CelType::CelValue,
35                parse_quote!(::tinc::__private::cel::CelValue::cel_to_bytes(#expr)?),
36            )),
37        }
38    }
39}
40
41#[cfg(test)]
42#[cfg(feature = "prost")]
43#[cfg_attr(coverage_nightly, coverage(off))]
44mod tests {
45    use quote::quote;
46    use syn::parse_quote;
47    use tinc_cel::CelValue;
48
49    use crate::codegen::cel::compiler::{CompiledExpr, Compiler, CompilerCtx};
50    use crate::codegen::cel::functions::{Bytes, Function};
51    use crate::codegen::cel::types::CelType;
52    use crate::types::{ProtoType, ProtoTypeRegistry, ProtoValueType};
53
54    #[test]
55    fn test_bytes_syntax() {
56        let registry = ProtoTypeRegistry::new(crate::Mode::Prost, crate::extern_paths::ExternPaths::new(crate::Mode::Prost));
57        let compiler = Compiler::new(&registry);
58        insta::assert_debug_snapshot!(Bytes.compile(CompilerCtx::new(compiler.child(), None, &[])), @r#"
59        Err(
60            InvalidSyntax {
61                message: "missing this",
62                syntax: "<this>.bytes()",
63            },
64        )
65        "#);
66
67        insta::assert_debug_snapshot!(Bytes.compile(CompilerCtx::new(compiler.child(), Some(CompiledExpr::constant(CelValue::String("hi".into()))), &[])), @r"
68        Ok(
69            Constant(
70                ConstantCompiledExpr {
71                    value: Bytes(
72                        Borrowed(
73                            [
74                                104,
75                                105,
76                            ],
77                        ),
78                    ),
79                },
80            ),
81        )
82        ");
83
84        insta::assert_debug_snapshot!(Bytes.compile(CompilerCtx::new(compiler.child(), Some(CompiledExpr::constant(CelValue::List(Default::default()))), &[
85            cel_parser::parse("1 + 1").unwrap(), // not an ident
86        ])), @r#"
87        Err(
88            InvalidSyntax {
89                message: "takes no arguments",
90                syntax: "<this>.bytes()",
91            },
92        )
93        "#);
94    }
95
96    #[test]
97    #[cfg(not(valgrind))]
98    fn test_bytes_runtime() {
99        let registry = ProtoTypeRegistry::new(crate::Mode::Prost, crate::extern_paths::ExternPaths::new(crate::Mode::Prost));
100        let compiler = Compiler::new(&registry);
101
102        let string_value =
103            CompiledExpr::runtime(CelType::Proto(ProtoType::Value(ProtoValueType::String)), parse_quote!(input));
104
105        let output = Bytes
106            .compile(CompilerCtx::new(compiler.child(), Some(string_value), &[]))
107            .unwrap();
108
109        insta::assert_snapshot!(postcompile::compile_str!(
110            postcompile::config! {
111                test: true,
112                dependencies: vec![
113                    postcompile::Dependency::version("tinc", "*"),
114                ],
115            },
116            quote! {
117                fn to_bytes(input: &str) -> Result<::tinc::__private::cel::CelValue<'_>, ::tinc::__private::cel::CelError<'_>> {
118                    Ok(#output)
119                }
120
121                #[test]
122                fn test_to_bytes() {
123                    assert_eq!(to_bytes("some string").unwrap(), ::tinc::__private::cel::CelValueConv::conv(b"some string"));
124                }
125            },
126        ));
127    }
128}
tinc_build/codegen/cel/functions/bytes.rs

tinc_build/codegen/cel/functions/
bytes.rs
