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[PRISM] Support repeated required parameter names.

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Fixes: https://github.com/ruby/prism/issues/2062

This patch only fixes positional parameters, we still need to fix the
other cases spelled out in test/prism/fixtures/repeat_parameters.txt
This commit is contained in:
Aaron Patterson 2024-01-10 16:27:00 -08:00 committed by Aaron Patterson
parent 72be786017
commit f2149dc094
2 changed files with 9 additions and 12 deletions
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17
prism_compile.c
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@ -5582,7 +5582,6 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
}
if (requireds_list) {
int number_of_anonymous_locals = 0;
for (size_t i = 0; i < requireds_list->size; i++) {
// For each MultiTargetNode, we're going to have one
// additional anonymous local not represented in the locals table
@ -5592,19 +5591,11 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
table_size++;
}
else if (PM_NODE_TYPE_P(required, PM_REQUIRED_PARAMETER_NODE)) {
if (pm_constant_id_lookup(scope_node, ((pm_required_parameter_node_t *)required)->name) == rb_intern("_")) {
number_of_anonymous_locals++;
if (PM_NODE_FLAG_P(required, PM_PARAMETER_FLAGS_REPEATED_PARAMETER)) {
table_size++;
}
}
}
// For each anonymous local we also want to increase the size
// of the locals table. Prism's locals table accounts for all
// anonymous locals as 1, so we need to increase the table size
// by the number of anonymous locals - 1
if (number_of_anonymous_locals > 1) {
table_size += (number_of_anonymous_locals - 1);
}
}
if (posts_list) {
@ -5686,7 +5677,9 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
case PM_REQUIRED_PARAMETER_NODE: {
pm_required_parameter_node_t * param = (pm_required_parameter_node_t *)required;
pm_insert_local_index(param->name, local_index, index_lookup_table, local_table_for_iseq, scope_node);
if (!PM_NODE_FLAG_P(required, PM_PARAMETER_FLAGS_REPEATED_PARAMETER)) {
pm_insert_local_index(param->name, local_index, index_lookup_table, local_table_for_iseq, scope_node);
}
break;
}
default: {

4
test/ruby/test_compile_prism.rb
View File

@ -1299,6 +1299,10 @@ module Prism
CODE
end
def test_repeated_method_params
assert_prism_eval("def self.foo(_a, _a); _a; end; foo(1, 2)")
end
def test_method_parameters
assert_prism_eval(<<-CODE)
def self.prism_test_method_parameters(a, b=1, *c, d:, e: 2, **f, &g)