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| author | Philip Herron <philip.herron@embecosm.com> | 2022-01-06 14:45:15 +0000 |
|---|---|---|
| committer | Philip Herron <philip.herron@embecosm.com> | 2022-01-06 15:35:28 +0000 |
| commit | 6d0892636e9642e75a858c40c45acd1df79c63e1 (patch) | |
| tree | 33ecc66b2e24693d103e9531a8d336ef49d7e896 /gcc/rust/backend/rust-compile-expr.cc | |
| parent | 69f6be3ee483c9895b4b5187a44b3e1c8be2ba63 (diff) | |
| download | gcc-6d0892636e9642e75a858c40c45acd1df79c63e1.zip gcc-6d0892636e9642e75a858c40c45acd1df79c63e1.tar.gz gcc-6d0892636e9642e75a858c40c45acd1df79c63e1.tar.bz2 | |
Add support for wildcard patterns within MatchExprs
GCC CASE_LABEL_EXPR's contain operand 0 and 1, operand 0 is used for the
low value of a case label and operand 1 for a high value. So with this
CASE_LABEL_EXPR is is possible to support a range of values from low->high
if set apropriately, but for the wildcard case this is effectively a
default case which means we set both operand 0 and 1 to NULL_TREE.
Fixes #853
Diffstat (limited to 'gcc/rust/backend/rust-compile-expr.cc')
| -rw-r--r-- | gcc/rust/backend/rust-compile-expr.cc | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/gcc/rust/backend/rust-compile-expr.cc b/gcc/rust/backend/rust-compile-expr.cc index b77a4d5..5e43f5a 100644 --- a/gcc/rust/backend/rust-compile-expr.cc +++ b/gcc/rust/backend/rust-compile-expr.cc @@ -275,19 +275,12 @@ CompileExpr::visit (HIR::MatchExpr &expr) tree case_label = ctx->get_backend ()->label ( fndecl, "" /* empty creates an artificial label */, arm_locus); - // not sure if we need to add this to the block or if the CASE_LABEL_EXPR - // does this implicitly - // - // tree case_label_decl_statement - // = ctx->get_backend ()->label_definition_statement (case_label); - // setup the bindings for the block for (auto &kase_pattern : kase_arm.get_patterns ()) { tree switch_kase_expr = CompilePatternCaseLabelExpr::Compile (kase_pattern.get (), case_label, ctx); - // ctx->add_statement (case_label_decl_statement); ctx->add_statement (switch_kase_expr); CompilePatternBindings::Compile (kase_pattern.get (), |