File: rust/compiler/rustc_codegen_llvm/src/va_arg.rs 在Rust源代码中,rust/compiler/rustc_codegen_llvm/src/va_arg.rs文件是用于处理Rust编译器的LLVM代码生成部分中可变参数(variadic arguments)的逻辑。 在C和C++中,可变参数函数是一种可以接受任意数量参数的函数。在Rust中,C ABI函数支持可变参数函数,但是...
Go does not have optional arguments, but to some extend, they can be mimicked with a variadic parameter. x is a variadic parameter, which must be the last parameter for the function f. Strictly speaking, x is a list of integers, which might have more than one element. These additional ...
AllowPlus、RecoverQPath、RecoverQuestionMark、RecoverReturnSign和AllowCVariadic这些枚举主要用于指定不同语法规则下类型解析过程中的错误处理策略。例如,AllowPlus表示在解析过程中允许加号(+)出现,RecoverQPath表示在解析过程中回复一个类型路径(QPath)。 总结起来,rust/compiler/rustc_parse/src/parser/ty.rs文件起着...
AllowPlus、RecoverQPath、RecoverQuestionMark、RecoverReturnSign和AllowCVariadic这些枚举主要用于指定不同语法规则下类型解析过程中的错误处理策略。例如,AllowPlus表示在解析过程中允许加号(+)出现,RecoverQPath表示在解析过程中回复一个类型路径(QPath)。 总结起来,rust/compiler/rustc_parse/src/parser/ty.rs文件起着...
https://doc.rust-lang.org/rust-by-example/macros/variadics.html https://stackoverflow.com/questions/28951503/how-can-i-create-a-function-with-a-variable-number-of-arguments https://doc.rust-lang.org/book/ch19-06-macros.html ...
throw_ub_format!("incorrect number of arguments: got {}, expected {}", args.len(), N) }/// Check that the number of args is at least the minumim what we expect. pub fn check_min_arg_count<'a, 'tcx, const N: usize>(
{ unsafety: Normal, constness: NotConst, abi: Rust, decl: FnDecl { inputs: [type(Option<i32>), type(())], output: Return(type(Foo)), variadic: false, has_implicit_self: false } }, BodyId { node_id: NodeId(40) }), span: 1.rs:6:5: 8:6 })', librustc/traits/error_...
is_variadic: 0, }, } } 这似乎适用于以下测试: let arguments_ptr = ZendFunctionArguments::new(5, true).into_raw(); unsafe { let arguments: Vec<php_bindings::_zend_internal_arg_info> = Vec::from_raw_parts(arguments_ptr as *mut _, 1, 1); ...
For type casts, we only generate ownership trans- fer constraints for head pointers; for unions we assume that they contain no pointer fields and consequently, we generate no constraints; similarly, we gener- ate no constraints for variadic arguments. We noticed that unions and variadic arguments...
Our translator does the best that it can to support the features that fit into Rust.Rust supports importing variadic C functions. This means that we can translate code that calls functions like printf. When calling these functions it is necessary for the Rust code to manually promote arguments....