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92 lines
2.6 KiB
92 lines
2.6 KiB
4 months ago
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use std::fmt::{self, Display};
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#[derive(Copy, Clone)]
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pub struct Error {
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pub msg: &'static str,
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pub label: Option<&'static str>,
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pub note: Option<&'static str>,
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}
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impl Display for Error {
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fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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self.msg.fmt(formatter)
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}
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}
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pub static ERRORS: &[Error] = &[
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BOX_CXX_TYPE,
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CXXBRIDGE_RESERVED,
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CXX_STRING_BY_VALUE,
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CXX_TYPE_BY_VALUE,
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DISCRIMINANT_OVERFLOW,
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DOT_INCLUDE,
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DOUBLE_UNDERSCORE,
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RUST_TYPE_BY_VALUE,
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UNSUPPORTED_TYPE,
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USE_NOT_ALLOWED,
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];
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pub static BOX_CXX_TYPE: Error = Error {
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msg: "Box of a C++ type is not supported yet",
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label: None,
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note: Some("hint: use UniquePtr<> or SharedPtr<>"),
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};
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pub static CXXBRIDGE_RESERVED: Error = Error {
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msg: "identifiers starting with cxxbridge are reserved",
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label: Some("reserved identifier"),
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note: Some("identifiers starting with cxxbridge are reserved"),
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};
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pub static CXX_STRING_BY_VALUE: Error = Error {
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msg: "C++ string by value is not supported",
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label: None,
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note: Some("hint: wrap it in a UniquePtr<>"),
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};
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pub static CXX_TYPE_BY_VALUE: Error = Error {
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msg: "C++ type by value is not supported",
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label: None,
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note: Some("hint: wrap it in a UniquePtr<> or SharedPtr<>"),
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};
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pub static DISCRIMINANT_OVERFLOW: Error = Error {
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msg: "discriminant overflow on value after ",
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label: Some("discriminant overflow"),
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note: Some("note: explicitly set `= 0` if that is desired outcome"),
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};
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pub static DOT_INCLUDE: Error = Error {
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msg: "#include relative to `.` or `..` is not supported in Cargo builds",
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label: Some("#include relative to `.` or `..` is not supported in Cargo builds"),
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note: Some("note: use a path starting with the crate name"),
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};
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pub static DOUBLE_UNDERSCORE: Error = Error {
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msg: "identifiers containing double underscore are reserved in C++",
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label: Some("reserved identifier"),
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note: Some("identifiers containing double underscore are reserved in C++"),
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};
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pub static RUST_TYPE_BY_VALUE: Error = Error {
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msg: "opaque Rust type by value is not supported",
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label: None,
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note: Some("hint: wrap it in a Box<>"),
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};
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pub static UNSUPPORTED_TYPE: Error = Error {
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msg: "unsupported type: ",
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label: Some("unsupported type"),
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note: None,
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};
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pub static USE_NOT_ALLOWED: Error = Error {
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msg: "`use` items are not allowed within cxx bridge",
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label: Some("not allowed"),
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note: Some(
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"`use` items are not allowed within cxx bridge; only types defined\n\
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within your bridge, primitive types, or types exported by the cxx\n\
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crate may be used",
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),
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};
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