josh/propane
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Rework tree generation mode and API

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Store tree nodes in congruent, compact arena array.
Define handle types to refer to tree nodes rather than pointers to
structure instances.
Free tree with context.
This commit is contained in:
josh committed 2026-07-27 20:57:44 -04:00
1 parent dddb1b5089
commit 5fc712c6ee
39 files changed
+1349 -811
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spec/propane_spec.rb
+43 -12
View File
@@ -751,7 +751,7 @@ EOF
it "executes user code associated with a parser rule in tree mode" do
case language
when "c", "cpp"
when "c"
write_grammar <<EOF
tree;
context_user_fields <<
@@ -769,18 +769,49 @@ ptype int;
token a << $$ = 11; >>
token b << $$ = 22; >>
Start -> A:ay B:bee C <<
${context.start_n_fields} = $$->n_fields;
${context.start_a_value} = $$->pA->pToken1->pvalue;
${context.a_value} = $1->pToken1->pvalue;
${context.b_value} = $2->pToken1->pvalue;
${context.b_token} = $2->pToken1->token;
${context.c_field_is_null} = ($$->pC == NULL) ? 1 : 0;
${context.alias_a_value} = ${ay}->pToken1->pvalue;
${context.alias_b_value} = ${bee}->pToken1->pvalue;
${context.start_n_fields} = p_node_n_fields($$);
${context.start_a_value} = p_tree_walk_Start($$, pA, pToken1, pvalue);
${context.a_value} = p_tree_walk_A($1, pToken1, pvalue);
${context.b_value} = p_tree_walk_B($2, pToken1, pvalue);
${context.b_token} = p_tree_walk_B($2, pToken1, token);
${context.c_field_is_null} = p_node_valid(p_Start_pC($$)) ? 0 : 1;
${context.alias_a_value} = p_tree_walk_A(${ay}, pToken1, pvalue);
${context.alias_b_value} = p_tree_walk_B(${bee}, pToken1, pvalue);
>>
A -> a;
B -> b;
C -> << ${context.c_is_null} = ($$ == NULL) ? 1 : 0; >>
C -> << ${context.c_is_null} = p_node_valid($$) ? 0 : 1; >>
EOF
when "cpp"
write_grammar <<EOF
tree;
context_user_fields <<
int start_n_fields;
int start_a_value;
int a_value;
int b_value;
p_token_t b_token;
int c_is_null;
int c_field_is_null;
int alias_a_value;
int alias_b_value;
>>
ptype int;
token a << $$ = 11; >>
token b << $$ = 22; >>
Start -> A:ay B:bee C <<
${context.start_n_fields} = $$.n_fields();
${context.start_a_value} = $$.pA().pToken1().pvalue();
${context.a_value} = $1.pToken1().pvalue();
${context.b_value} = $2.pToken1().pvalue();
${context.b_token} = $2.pToken1().token();
${context.c_field_is_null} = $$.pC().valid() ? 0 : 1;
${context.alias_a_value} = ${ay}.pToken1().pvalue();
${context.alias_b_value} = ${bee}.pToken1().pvalue();
>>
A -> a;
B -> b;
C -> << ${context.c_is_null} = $$.valid() ? 0 : 1; >>
EOF
when "d"
write_grammar <<EOF
@@ -805,13 +836,13 @@ Start -> A:ay B:bee C <<
${context.a_value} = $1.pToken1.pvalue;
${context.b_value} = $2.pToken1.pvalue;
${context.b_token} = $2.pToken1.token;
${context.c_field_is_null} = ($$.pC is null) ? 1 : 0;
${context.c_field_is_null} = ($$.pC.valid) ? 0 : 1;
${context.alias_a_value} = ${ay}.pToken1.pvalue;
${context.alias_b_value} = ${bee}.pToken1.pvalue;
>>
A -> a;
B -> b;
C -> << ${context.c_is_null} = ($$ is null) ? 1 : 0; >>
C -> << ${context.c_is_null} = ($$.valid) ? 0 : 1; >>
EOF
end
run_propane(language: language)