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149 lines
5.7 KiB
OpenEdge ABL
149 lines
5.7 KiB
OpenEdge ABL
[Synoptic::] Synoptic Utilities.
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Utility functions for generating the code in the synoptic module.
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@h Dealing with symbols.
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We are going to need to read and write these: for reading --
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=
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inter_symbol *Synoptic::get_symbol(inter_package *pack, text_stream *name) {
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inter_symbol *loc_s =
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InterSymbolsTable::symbol_from_name(InterPackage::scope(pack), name);
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if (loc_s == NULL) Metadata::err("package symbol not found", pack, name);
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return loc_s;
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}
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inter_tree_node *Synoptic::get_definition(inter_package *pack, text_stream *name) {
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inter_symbol *def_s = InterSymbolsTable::symbol_from_name(InterPackage::scope(pack), name);
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if (def_s == NULL) {
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LOG("Unable to find symbol %S in $6\n", name, pack);
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internal_error("no symbol");
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}
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inter_tree_node *D = def_s->definition;
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if (D == NULL) {
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LOG("Undefined symbol %S in $6\n", name, pack);
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internal_error("undefined symbol");
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}
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return D;
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}
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@ To clarify: here, the symbol is optional, that is, need not exist; but if it
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does exist, it must have a definition, and we return that.
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=
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inter_tree_node *Synoptic::get_optional_definition(inter_package *pack, text_stream *name) {
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inter_symbol *def_s = InterSymbolsTable::symbol_from_name(InterPackage::scope(pack), name);
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if (def_s == NULL) return NULL;
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inter_tree_node *D = def_s->definition;
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if (D == NULL) internal_error("undefined symbol");
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return D;
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}
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@ And this creates a new symbol:
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=
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inter_symbol *Synoptic::new_symbol(inter_package *pack, text_stream *name) {
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return InterSymbolsTable::create_with_unique_name(InterPackage::scope(pack), name);
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}
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@h Making textual constants.
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=
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void Synoptic::textual_constant(inter_tree *I, pipeline_step *step,
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inter_symbol *con_s, text_stream *S, inter_bookmark *IBM) {
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Inter::Symbols::annotate_i(con_s, TEXT_LITERAL_IANN, 1);
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inter_ti ID = InterWarehouse::create_text(InterTree::warehouse(I),
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InterBookmark::package(IBM));
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Str::copy(InterWarehouse::get_text(InterTree::warehouse(I), ID), S);
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Produce::guard(Inter::Constant::new_textual(IBM,
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InterSymbolsTable::id_from_symbol(I, InterBookmark::package(IBM), con_s),
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InterSymbolsTable::id_from_symbol(I, InterBookmark::package(IBM),
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RunningPipelines::get_symbol(step, unchecked_kind_RPSYM)),
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ID, (inter_ti) InterBookmark::baseline(IBM) + 1, NULL));
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}
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@h Making functions.
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=
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inter_package *synoptic_fn_package = NULL;
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packaging_state synoptic_fn_ps;
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void Synoptic::begin_function(inter_tree *I, inter_name *iname) {
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synoptic_fn_package = Produce::function_body(I, &synoptic_fn_ps, iname);
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}
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void Synoptic::end_function(inter_tree *I, pipeline_step *step, inter_name *iname) {
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Produce::end_function_body(I);
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inter_symbol *fn_s = InterNames::define(iname);
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Produce::guard(Inter::Constant::new_function(Packaging::at(I),
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InterSymbolsTable::id_from_symbol(I, InterBookmark::package(Packaging::at(I)), fn_s),
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InterSymbolsTable::id_from_symbol(I, InterBookmark::package(Packaging::at(I)),
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RunningPipelines::get_symbol(step, unchecked_kind_RPSYM)),
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synoptic_fn_package,
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Produce::baseline(Packaging::at(I)), NULL));
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Packaging::exit(I, synoptic_fn_ps);
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}
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@ To give such a function a local:
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=
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inter_symbol *Synoptic::local(inter_tree *I, text_stream *name, text_stream *comment) {
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return Produce::local(I, K_value, name, 0, comment);
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}
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@h Making arrays.
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=
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inter_tree_node *synoptic_array_node = NULL;
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packaging_state synoptic_array_ps;
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void Synoptic::begin_array(inter_tree *I, pipeline_step *step, inter_name *iname) {
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synoptic_array_ps = Packaging::enter_home_of(iname);
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inter_symbol *con_s = InterNames::define(iname);
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synoptic_array_node = Inode::new_with_3_data_fields(Packaging::at(I), CONSTANT_IST,
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InterSymbolsTable::id_from_symbol_at_bookmark(Packaging::at(I), con_s),
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InterSymbolsTable::id_from_symbol_at_bookmark(Packaging::at(I),
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RunningPipelines::get_symbol(step, list_of_unchecked_kind_RPSYM)),
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CONSTANT_INDIRECT_LIST, NULL,
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(inter_ti) InterBookmark::baseline(Packaging::at(I)) + 1);
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}
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void Synoptic::end_array(inter_tree *I) {
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inter_error_message *E = Inter::Defn::verify_construct(
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InterBookmark::package(Packaging::at(I)), synoptic_array_node);
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if (E) {
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Inter::Errors::issue(E);
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internal_error("synoptic array failed verification");
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}
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NodePlacement::move_to_moving_bookmark(synoptic_array_node, Packaging::at(I));
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Packaging::exit(I, synoptic_array_ps);
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}
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@ Three ways to define an entry:
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=
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void Synoptic::numeric_entry(inter_ti val2) {
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Inode::extend_instruction_by(synoptic_array_node, 2);
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synoptic_array_node->W.instruction[synoptic_array_node->W.extent-2] = LITERAL_IVAL;
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synoptic_array_node->W.instruction[synoptic_array_node->W.extent-1] = val2;
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}
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void Synoptic::symbol_entry(inter_symbol *S) {
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Inode::extend_instruction_by(synoptic_array_node, 2);
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inter_package *pack = InterPackage::container(synoptic_array_node);
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inter_symbol *local_S =
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InterSymbolsTable::create_with_unique_name(InterPackage::scope(pack), S->symbol_name);
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Wiring::wire_to(local_S, S);
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inter_ti val1 = 0, val2 = 0;
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Inter::Symbols::to_data(InterPackage::tree(pack), pack, local_S, &val1, &val2);
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synoptic_array_node->W.instruction[synoptic_array_node->W.extent-2] = ALIAS_IVAL;
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synoptic_array_node->W.instruction[synoptic_array_node->W.extent-1] = val2;
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}
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void Synoptic::textual_entry(text_stream *text) {
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Inode::extend_instruction_by(synoptic_array_node, 2);
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inter_package *pack = InterPackage::container(synoptic_array_node);
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inter_tree *I = InterPackage::tree(pack);
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inter_ti val2 = InterWarehouse::create_text(InterTree::warehouse(I), pack);
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text_stream *glob_storage = InterWarehouse::get_text(InterTree::warehouse(I), val2);
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Str::copy(glob_storage, text);
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synoptic_array_node->W.instruction[synoptic_array_node->W.extent-2] = LITERAL_TEXT_IVAL;
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synoptic_array_node->W.instruction[synoptic_array_node->W.extent-1] = val2;
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}
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