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Implement capturing.

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This commit is contained in:
Stephen Chung
2020-07-30 18:18:28 +08:00
parent e505a06839
commit 98b294c699
17 changed files with 410 additions and 180 deletions
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11
src/error.rs
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@@ -91,6 +91,10 @@ pub enum ParseErrorType {
///
/// Never appears under the `no_object` and `no_index` features combination.
MalformedInExpr(String),
/// A capturing has syntax error. Wrapped value is the error description (if any).
///
/// Never appears under the `no_capture` feature.
MalformedCapture(String),
/// A map definition has duplicated property names. Wrapped value is the property name.
///
/// Never appears under the `no_object` feature.
@@ -166,6 +170,7 @@ impl ParseErrorType {
Self::MalformedCallExpr(_) => "Invalid expression in function call arguments",
Self::MalformedIndexExpr(_) => "Invalid index in indexing expression",
Self::MalformedInExpr(_) => "Invalid 'in' expression",
Self::MalformedCapture(_) => "Invalid capturing",
Self::DuplicatedProperty(_) => "Duplicated property in object map literal",
Self::ForbiddenConstantExpr(_) => "Expecting a constant",
Self::PropertyExpected => "Expecting name of a property",
@@ -199,9 +204,9 @@ impl fmt::Display for ParseErrorType {
}
Self::UnknownOperator(s) => write!(f, "{}: '{}'", self.desc(), s),
Self::MalformedIndexExpr(s) => f.write_str(if s.is_empty() { self.desc() } else { s }),
Self::MalformedInExpr(s) => f.write_str(if s.is_empty() { self.desc() } else { s }),
Self::MalformedIndexExpr(s) | Self::MalformedInExpr(s) | Self::MalformedCapture(s) => {
f.write_str(if s.is_empty() { self.desc() } else { s })
}
Self::DuplicatedProperty(s) => {
write!(f, "Duplicated property '{}' for object map literal", s)