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Remove index fields from ParamPatterns (#6815)

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This is a step toward removing the index from `InitForm`, so that equal
form values always have equal representations.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
This commit is contained in:
Geoff Romer
2026-03-03 00:19:47 +00:00
committed by GitHub
co-authored by Jon Ross-Perkins
parent 9ff6b0a682
commit 6dba8ee111
298 changed files with 1741 additions and 1747 deletions
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toolchain/check/pattern_match.cpp
+1 -5
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@@ -419,10 +419,6 @@ auto MatchContext::DoEmitPatternMatch(Context& context,
switch (kind_) {
case MatchKind::Caller: {
CARBON_CHECK(
static_cast<size_t>(param_pattern.index.index) == call_args_.size(),
"Parameters out of order; expecting {0} but got {1}",
call_args_.size(), param_pattern.index.index);
CARBON_CHECK(entry.scrutinee_id.has_value());
if (entry.scrutinee_id == SemIR::ErrorInst::InstId) {
call_args_.push_back(SemIR::ErrorInst::InstId);
@@ -446,7 +442,7 @@ auto MatchContext::DoEmitPatternMatch(Context& context,
.kind = ParamKindFor(context, param_pattern, entry, form_kind),
.type_id =
ExtractScrutineeType(context.sem_ir(), param_pattern.type_id),
.index = param_pattern.index,
.index = SemIR::CallParamIndex(call_params_.size()),
.pretty_name_id = SemIR::GetPrettyNameFromPatternId(
context.sem_ir(), entry.pattern_id)};
auto param_id =