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Introduce context module

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To make `set_result` and `report_error` in functions module
visible to vtab module.
This commit is contained in:
gwenn
2018-05-13 11:28:56 +02:00
parent f4beb18904
commit 6cbeb6ef59
7 changed files with 25 additions and 137 deletions
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12
src/error.rs
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@@ -68,6 +68,10 @@ pub enum Error {
/// to the requested type.
#[cfg(feature = "functions")]
InvalidFunctionParameterType(usize, Type),
/// Error returned by `vtab::Values::get` when the filter argument cannot be converted
/// to the requested type.
#[cfg(feature = "vtab")]
InvalidFilterParameterType(usize, Type),
/// An error case available for implementors of custom user functions (e.g.,
/// `create_scalar_function`).
@@ -135,6 +139,10 @@ impl fmt::Display for Error {
Error::InvalidFunctionParameterType(i, ref t) => {
write!(f, "Invalid function parameter type {} at index {}", t, i)
}
#[cfg(feature = "vtab")]
Error::InvalidFilterParameterType(i, ref t) => {
write!(f, "Invalid filter parameter type {} at index {}", t, i)
}
#[cfg(feature = "functions")]
Error::UserFunctionError(ref err) => err.fmt(f),
Error::ToSqlConversionFailure(ref err) => err.fmt(f),
@@ -165,6 +173,8 @@ impl error::Error for Error {
#[cfg(feature = "functions")]
Error::InvalidFunctionParameterType(_, _) => "invalid function parameter type",
#[cfg(feature = "vtab")]
Error::InvalidFilterParameterType(_, _) => "invalid filter parameter type",
#[cfg(feature = "functions")]
Error::UserFunctionError(ref err) => err.description(),
Error::ToSqlConversionFailure(ref err) => err.description(),
@@ -192,6 +202,8 @@ impl error::Error for Error {
#[cfg(feature = "functions")]
Error::InvalidFunctionParameterType(_, _) => None,
#[cfg(feature = "vtab")]
Error::InvalidFilterParameterType(_, _) => None,
#[cfg(feature = "functions")]
Error::UserFunctionError(ref err) => Some(&**err),