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replace AST visitors with macro

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This commit is contained in:
Ekaterina Babshukova 2019-10-05 17:03:03 +03:00
parent dbf869b4d2
commit 2fc2290173
10 changed files with 334 additions and 297 deletions
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18
crates/ra_syntax/src/validation.rs
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@ -5,8 +5,7 @@ mod block;
use rustc_lexer::unescape;
use crate::{
algo::visit::{visitor_ctx, VisitorCtx},
ast, AstNode, SyntaxError, SyntaxErrorKind,
ast, match_ast, AstNode, SyntaxError, SyntaxErrorKind,
SyntaxKind::{BYTE, BYTE_STRING, CHAR, INT_NUMBER, STRING},
SyntaxNode, SyntaxToken, TextUnit, T,
};
@ -97,12 +96,15 @@ impl From<rustc_lexer::unescape::EscapeError> for SyntaxErrorKind {
pub(crate) fn validate(root: &SyntaxNode) -> Vec<SyntaxError> {
let mut errors = Vec::new();
for node in root.descendants() {
let _ = visitor_ctx(&mut errors)
.visit::<ast::Literal, _>(validate_literal)
.visit::<ast::BlockExpr, _>(block::validate_block_expr)
.visit::<ast::FieldExpr, _>(|it, errors| validate_numeric_name(it.name_ref(), errors))
.visit::<ast::RecordField, _>(|it, errors| validate_numeric_name(it.name_ref(), errors))
.accept(&node);
match_ast! {
match node {
ast::Literal(it) => { validate_literal(it, &mut errors) },
ast::BlockExpr(it) => { block::validate_block_expr(it, &mut errors) },
ast::FieldExpr(it) => { validate_numeric_name(it.name_ref(), &mut errors) },
ast::RecordField(it) => { validate_numeric_name(it.name_ref(), &mut errors) },
_ => (),
}
}
}
errors
}