Parse try expressions#3870
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This doesn't do anything beyond creating TryExpr and parsing them, so try expressions shouldn't be able to make it past AST lowering yet. gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Add visitor for TryExpr. * ast/rust-ast-collector.h (TokenCollector::visit): Likewise. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Likewise. * ast/rust-ast-visitor.h (ASTVisitor::visit): Likewise. (DefaultASTVisitor::visit): Likewise. * expand/rust-derive.h (DeriveVisitor::visit): Likewise. * hir/rust-ast-lower-base.cc (ASTLoweringBase::visit): Likewise. * hir/rust-ast-lower-base.h (ASTLoweringBase::visit): Likewise. * resolve/rust-ast-resolve-base.cc (ResolverBase::visit): Likewise. * resolve/rust-ast-resolve-base.h (ResolverBase::visit): Likewise. * ast/rust-ast-full-decls.h (class TryExpr): New forward class declaration. * ast/rust-ast.cc (TryExpr::as_string): New function. (TryExpr::accept_vis): Likewise. * ast/rust-expr.h (class TryExpr): New class. * parse/rust-parse.h (Parser::parse_try_expr): New function. * parse/rust-parse-impl.h (Parser::parse_try_expr): Likewise. (Parser::null_denotation_not_path): Use parse_try_expr to parse try expressions. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
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This doesn't do anything beyond creating
TryExprand parsing them, so try expressions shouldn't be able to make it past AST lowering yet.