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| author | Nathan Sidwell <nathan@acm.org> | 2022-03-08 13:00:35 -0800 |
|---|---|---|
| committer | Nathan Sidwell <nathan@acm.org> | 2022-05-17 11:10:03 -0700 |
| commit | 451894cadcf1210883ceefb2d69a0ed2d6a8cd8b (patch) | |
| tree | 1d02872b057666ed99f2fbd5d5abb1bcefb2293b /libiberty | |
| parent | 7a3f38a966a52893fb5bae301a1a3d56961358fb (diff) | |
| download | gcc-451894cadcf1210883ceefb2d69a0ed2d6a8cd8b.zip gcc-451894cadcf1210883ceefb2d69a0ed2d6a8cd8b.tar.gz gcc-451894cadcf1210883ceefb2d69a0ed2d6a8cd8b.tar.bz2 | |
demangler: Structured Bindings
C++ Structured bindings have a mangling that has yet to be formally
documented. However, it's been around for a while and shows up for
module support.
include/
* demangle.h (enum demangle_component_type): Add
DEMANGLE_COMPONENT_STRUCTURED_BINDING.
libiberty/
* cp-demangle.c (d_make_comp): Adjust.
(d_unqualified_name): Add 'DC' support.
(d_count_template_scopes): Adjust.
(d_print_comp_inner): Add structured binding.
* testsuite/demangle-expected: Add testcases.
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/cp-demangle.c | 49 | ||||
| -rw-r--r-- | libiberty/testsuite/demangle-expected | 10 |
2 files changed, 53 insertions, 6 deletions
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c index 6dff7d2..fc618fa 100644 --- a/libiberty/cp-demangle.c +++ b/libiberty/cp-demangle.c @@ -1020,6 +1020,7 @@ d_make_comp (struct d_info *di, enum demangle_component_type type, case DEMANGLE_COMPONENT_NULLARY: case DEMANGLE_COMPONENT_TRINARY_ARG2: case DEMANGLE_COMPONENT_TPARM_OBJ: + case DEMANGLE_COMPONENT_STRUCTURED_BINDING: if (left == NULL) return NULL; break; @@ -1619,12 +1620,12 @@ d_prefix (struct d_info *di, int subst) } } -/* <unqualified-name> ::= <operator-name> - ::= <ctor-dtor-name> - ::= <source-name> - ::= <local-source-name> - - <local-source-name> ::= L <source-name> <discriminator> +/* <unqualified-name> ::= <operator-name> [<abi-tags>] + ::= <ctor-dtor-name> [<abi-tags>] + ::= <source-name> [<abi-tags>] + ::= <local-source-name> [<abi-tags>] + ::= DC <source-name>+ E [<abi-tags>] + <local-source-name> ::= L <source-name> <discriminator> [<abi-tags>] */ static struct demangle_component * @@ -1655,6 +1656,28 @@ d_unqualified_name (struct d_info *di) d_source_name (di)); } } + else if (peek == 'D' && d_peek_next_char (di) == 'C') + { + // structured binding + d_advance (di, 2); + struct demangle_component *prev = NULL; + do + { + struct demangle_component *next = + d_make_comp (di, DEMANGLE_COMPONENT_STRUCTURED_BINDING, + d_source_name (di), NULL); + if (prev) + d_right (prev) = next; + else + ret = next; + prev = next; + } + while (prev && d_peek_char (di) != 'E'); + if (prev) + d_advance (di, 1); + else + ret = NULL; + } else if (peek == 'C' || peek == 'D') ret = d_ctor_dtor_name (di); else if (peek == 'L') @@ -4179,6 +4202,7 @@ d_count_templates_scopes (struct d_print_info *dpi, case DEMANGLE_COMPONENT_CHARACTER: case DEMANGLE_COMPONENT_NUMBER: case DEMANGLE_COMPONENT_UNNAMED_TYPE: + case DEMANGLE_COMPONENT_STRUCTURED_BINDING: break; case DEMANGLE_COMPONENT_TEMPLATE: @@ -4850,6 +4874,19 @@ d_print_comp_inner (struct d_print_info *dpi, int options, d_append_char (dpi, ']'); return; + case DEMANGLE_COMPONENT_STRUCTURED_BINDING: + d_append_char (dpi, '['); + for (;;) + { + d_print_comp (dpi, options, d_left (dc)); + dc = d_right (dc); + if (!dc) + break; + d_append_string (dpi, ", "); + } + d_append_char (dpi, ']'); + return; + case DEMANGLE_COMPONENT_QUAL_NAME: case DEMANGLE_COMPONENT_LOCAL_NAME: d_print_comp (dpi, options, d_left (dc)); diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected index de54ad7..2b0b531 100644 --- a/libiberty/testsuite/demangle-expected +++ b/libiberty/testsuite/demangle-expected @@ -1493,3 +1493,13 @@ decltype ({parm#1}.A::x) f<A>(A) _Z2f6IP1AEDtptfp_gssr1A1BE1xET_ decltype ({parm#1}->(::A::B::x)) f6<A*>(A*) + +# Structured Bindings +_ZDC1a1bE +[a, b] + +_ZNStDC1aEE +std::[a] + +_ZN3NMSDC1aEE +NMS::[a] |