diff options
Diffstat (limited to 'gcc/rust/hir/rust-ast-lower-pattern.cc')
| -rw-r--r-- | gcc/rust/hir/rust-ast-lower-pattern.cc | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/gcc/rust/hir/rust-ast-lower-pattern.cc b/gcc/rust/hir/rust-ast-lower-pattern.cc index 9baf81d..8aabcd8 100644 --- a/gcc/rust/hir/rust-ast-lower-pattern.cc +++ b/gcc/rust/hir/rust-ast-lower-pattern.cc @@ -23,7 +23,9 @@ namespace Rust { namespace HIR { -ASTLoweringPattern::ASTLoweringPattern () : translated (nullptr) {} +ASTLoweringPattern::ASTLoweringPattern () + : translated (nullptr), is_let_top_level (false) +{} HIR::Pattern * ASTLoweringPattern::translate (AST::Pattern &pattern, bool is_let_top_level) @@ -53,7 +55,7 @@ ASTLoweringPattern::visit (AST::IdentifierPattern &pattern) if (pattern.has_subpattern ()) { subpattern = std::unique_ptr<Pattern> ( - ASTLoweringPattern::translate (pattern.get_pattern_to_bind ())); + ASTLoweringPattern::translate (pattern.get_subpattern ())); } translated = new HIR::IdentifierPattern (mapping, pattern.get_ident (), @@ -321,10 +323,27 @@ void ASTLoweringPattern::visit (AST::SlicePattern &pattern) { std::vector<std::unique_ptr<HIR::Pattern>> items; - for (auto &p : pattern.get_items ()) + + switch (pattern.get_items ().get_pattern_type ()) { - HIR::Pattern *item = ASTLoweringPattern::translate (*p); - items.push_back (std::unique_ptr<HIR::Pattern> (item)); + case AST::SlicePatternItems::SlicePatternItemType::NO_REST: + { + AST::SlicePatternItemsNoRest &ref + = static_cast<AST::SlicePatternItemsNoRest &> (pattern.get_items ()); + for (auto &p : ref.get_patterns ()) + { + HIR::Pattern *item = ASTLoweringPattern::translate (*p); + items.push_back (std::unique_ptr<HIR::Pattern> (item)); + } + } + break; + case AST::SlicePatternItems::SlicePatternItemType::HAS_REST: + { + rust_error_at (pattern.get_locus (), + "lowering of slice patterns with rest elements are not " + "supported yet"); + } + break; } auto crate_num = mappings.get_current_crate (); |