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short-circuit rule lookups if explicit default is found

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This commit is contained in:
Ryan Fleury
2025-03-27 15:41:32 -07:00
parent c57b5fcd6d
commit da3c15c7ed
2 changed files with 21 additions and 6 deletions
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src/eval/eval_ir.c
+17 -2
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@@ -2641,12 +2641,18 @@ e_irtree_and_type_from_expr(Arena *arena, E_Expr *expr)
}
//- rjf: pick the ir-generation rule from explicitly-stored expressions
B32 default_is_forced = 0;
E_IRGenRule *explicit_irgen_rule = &e_irgen_rule__default;
E_Expr *explicit_irgen_rule_tag = &e_expr_nil;
for(E_Expr *tag = expr->first_tag; tag != &e_expr_nil; tag = tag->next)
{
String8 name = tag->string;
E_IRGenRule *irgen_rule_candidate = e_irgen_rule_from_string(name);
if(str8_match(name, e_irgen_rule__default.name, 0))
{
default_is_forced = 1;
break;
}
if(irgen_rule_candidate != &e_irgen_rule__default)
{
B32 tag_is_poisoned = e_tag_is_poisoned(tag);
@@ -2685,6 +2691,7 @@ e_irtree_and_type_from_expr(Arena *arena, E_Expr *expr)
}
// rjf: find any auto hooks according to this generation's type
if(!default_is_forced)
{
E_ExprList exprs = e_auto_hook_tag_exprs_from_type_key__cached(result.type_key);
for(E_ExprNode *n = exprs.first; n != 0; n = n->next)
@@ -3028,11 +3035,19 @@ e_lookup_rule_tag_pair_from_expr_irtree(E_Expr *expr, E_IRTreeAndType *irtree)
E_LookupRuleTagPair result = {&e_lookup_rule__default, &e_expr_nil};
{
// rjf: first try explicitly-stored tags
B32 default_is_forced = 0;
if(result.rule == &e_lookup_rule__default)
{
for(E_Expr *tag = expr->first_tag; tag != &e_expr_nil; tag = tag->next)
{
if(e_tag_is_poisoned(tag)) { continue; }
if(str8_match(tag->string, e_lookup_rule__default.name, 0))
{
result.rule = &e_lookup_rule__default;
result.tag = &e_expr_nil;
default_is_forced = 1;
break;
}
E_LookupRule *candidate = e_lookup_rule_from_string(tag->string);
if(candidate != &e_lookup_rule__nil)
{
@@ -3043,7 +3058,7 @@ e_lookup_rule_tag_pair_from_expr_irtree(E_Expr *expr, E_IRTreeAndType *irtree)
}
// rjf: next try implicit set name -> rule mapping
if(result.rule == &e_lookup_rule__default)
if(!default_is_forced && result.rule == &e_lookup_rule__default)
{
E_TypeKind type_kind = e_type_kind_from_key(irtree->type_key);
if(type_kind == E_TypeKind_Set)
@@ -3059,7 +3074,7 @@ e_lookup_rule_tag_pair_from_expr_irtree(E_Expr *expr, E_IRTreeAndType *irtree)
}
// rjf: next try auto hook map
if(result.rule == &e_lookup_rule__default)
if(!default_is_forced && result.rule == &e_lookup_rule__default)
{
E_ExprList tags = e_auto_hook_tag_exprs_from_type_key__cached(irtree->type_key);
for(E_ExprNode *n = tags.first; n != 0; n = n->next)