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Prevent data races.

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This commit is contained in:
Stephen Chung
2020-08-02 13:33:51 +08:00
parent 1daf91df30
commit b86c87253b
6 changed files with 124 additions and 6 deletions
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8
src/result.rs
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@@ -69,6 +69,8 @@ pub enum EvalAltResult {
ErrorVariableNotFound(String, Position),
/// Usage of an unknown module. Wrapped value is the name of the module.
ErrorModuleNotFound(String, Position),
/// Data race detected when accessing a variable. Wrapped value is the name of the variable.
ErrorDataRace(String, Position),
/// Assignment to an inappropriate LHS (left-hand-side) expression.
ErrorAssignmentToUnknownLHS(Position),
/// Assignment to a constant variable.
@@ -136,7 +138,8 @@ impl EvalAltResult {
Self::ErrorLogicGuard(_) => "Boolean value expected",
Self::ErrorFor(_) => "For loop expects an array, object map, or range",
Self::ErrorVariableNotFound(_, _) => "Variable not found",
Self::ErrorModuleNotFound(_, _) => "module not found",
Self::ErrorModuleNotFound(_, _) => "Module not found",
Self::ErrorDataRace(_, _) => "Data race detected when accessing variable",
Self::ErrorAssignmentToUnknownLHS(_) => {
"Assignment to an unsupported left-hand side expression"
}
@@ -180,6 +183,7 @@ impl fmt::Display for EvalAltResult {
Self::ErrorFunctionNotFound(s, _)
| Self::ErrorVariableNotFound(s, _)
| Self::ErrorDataRace(s, _)
| Self::ErrorModuleNotFound(s, _) => write!(f, "{}: '{}'", desc, s)?,
Self::ErrorDotExpr(s, _) if !s.is_empty() => write!(f, "{}", s)?,
@@ -289,6 +293,7 @@ impl EvalAltResult {
| Self::ErrorFor(pos)
| Self::ErrorVariableNotFound(_, pos)
| Self::ErrorModuleNotFound(_, pos)
| Self::ErrorDataRace(_, pos)
| Self::ErrorAssignmentToUnknownLHS(pos)
| Self::ErrorAssignmentToConstant(_, pos)
| Self::ErrorMismatchOutputType(_, _, pos)
@@ -329,6 +334,7 @@ impl EvalAltResult {
| Self::ErrorFor(pos)
| Self::ErrorVariableNotFound(_, pos)
| Self::ErrorModuleNotFound(_, pos)
| Self::ErrorDataRace(_, pos)
| Self::ErrorAssignmentToUnknownLHS(pos)
| Self::ErrorAssignmentToConstant(_, pos)
| Self::ErrorMismatchOutputType(_, _, pos)