extend M7 type construction
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+11
-2
@@ -37,9 +37,12 @@ FeType *fe_m7_optional_type(FeTypeCtx *ctx, FeType *payload)
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if (t->kind == FE_TYPE_UNKNOWN) {
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t->kind = FE_TYPE_OPTIONAL;
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t->elem = payload;
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t->unwrap_cname = m7_generated_name(ctx, "fe_unwrap_option_");
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t->drop_cname = m7_generated_name(ctx, "fe_drop_option_");
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if (!fe_m7_optional_uses_niche(payload)) {
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t->cname = m7_generated_name(ctx, "struct fe_option_");
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t->maker = m7_generated_name(ctx, "fe_make_option_");
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t->none_cname = m7_generated_name(ctx, "fe_none_option_");
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}
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}
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return t;
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@@ -63,13 +66,13 @@ FeType *fe_m7_error_union_type(FeTypeCtx *ctx, FeType *error_type,
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if (!t) return 0;
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if (t->kind == FE_TYPE_UNKNOWN) {
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t->kind = FE_TYPE_ERROR_UNION;
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/* For FE_TYPE_ERROR_UNION, elem is the nominal error identity.
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A null elem denotes the built-in core.Error shorthand !T. */
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t->elem = error_type;
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t->error_value = value_type;
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t->drop_cname = m7_generated_name(ctx, "fe_drop_result_");
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if (value_type->kind != FE_TYPE_VOID) {
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t->cname = m7_generated_name(ctx, "struct fe_result_");
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t->maker = m7_generated_name(ctx, "fe_make_result_");
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t->none_cname = m7_generated_name(ctx, "fe_fail_result_");
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t->alloc_cname = m7_generated_name(ctx, "fe_alloc_result_");
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}
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}
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@@ -112,3 +115,9 @@ int fe_m7_is_try(const FeNode *node)
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return node && node->kind == FE_N_UNARY && node->text &&
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strcmp(node->text, "try") == 0;
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}
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int fe_m7_is_null(const FeNode *node)
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{
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return node && node->kind == FE_N_LITERAL && node->text &&
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strcmp(node->text, "null") == 0;
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}
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