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77 lines
3.1 KiB
OpenEdge ABL
77 lines
3.1 KiB
OpenEdge ABL
[LocalInstruction::] The Local Construct.
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Defining the local construct.
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@
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=
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void LocalInstruction::define_construct(void) {
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inter_construct *IC = InterInstruction::create_construct(LOCAL_IST, I"local");
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InterInstruction::defines_symbol_in_fields(IC, DEFN_LOCAL_IFLD, KIND_LOCAL_IFLD);
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InterInstruction::specify_syntax(IC, I"local TOKENS");
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InterInstruction::fix_instruction_length_between(IC, EXTENT_LOCAL_IFR, EXTENT_LOCAL_IFR);
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InterInstruction::permit(IC, INSIDE_CODE_PACKAGE_ICUP);
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InterInstruction::permit(IC, CAN_HAVE_ANNOTATIONS_ICUP);
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METHOD_ADD(IC, CONSTRUCT_READ_MTID, LocalInstruction::read);
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METHOD_ADD(IC, CONSTRUCT_VERIFY_MTID, LocalInstruction::verify);
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METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, LocalInstruction::write);
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}
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@
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@d BLOCK_LOCAL_IFLD 2
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@d DEFN_LOCAL_IFLD 3
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@d KIND_LOCAL_IFLD 4
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@d EXTENT_LOCAL_IFR 5
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=
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void LocalInstruction::read(inter_construct *IC, inter_bookmark *IBM, inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) {
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inter_package *routine = InterBookmark::package(IBM);
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if (routine == NULL) { *E = InterErrors::plain(I"'local' used outside function", eloc); return; }
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inter_symbols_table *locals = InterPackage::scope(routine);
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if (locals == NULL) { *E = InterErrors::plain(I"function has no symbols table", eloc); return; }
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text_stream *kind_text = NULL, *name_text = ilp->mr.exp[0];
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match_results mr2 = Regexp::create_mr();
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if (Regexp::match(&mr2, name_text, L"%((%c+)%) (%c+)")) {
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kind_text = mr2.exp[0];
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name_text = mr2.exp[1];
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}
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inter_type var_type = InterTypes::parse_simple(InterBookmark::scope(IBM), eloc, kind_text, E);
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if (*E) return;
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inter_symbol *var_name = TextualInter::new_symbol(eloc, locals, name_text, E);
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if (*E) return;
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InterSymbol::make_local(var_name);
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SymbolAnnotation::copy_set_to_symbol(&(ilp->set), var_name);
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*E = LocalInstruction::new(IBM, var_name, var_type, (inter_ti) ilp->indent_level, eloc);
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}
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inter_error_message *LocalInstruction::new(inter_bookmark *IBM, inter_symbol *var_name,
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inter_type var_type, inter_ti level, inter_error_location *eloc) {
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inter_tree_node *P = Inode::new_with_3_data_fields(IBM, LOCAL_IST, 0, InterSymbolsTable::id_at_bookmark(IBM, var_name), InterTypes::to_TID_at(IBM, var_type), eloc, level);
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inter_error_message *E = VerifyingInter::instruction(InterBookmark::package(IBM), P); if (E) return E;
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NodePlacement::move_to_moving_bookmark(P, IBM);
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return NULL;
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}
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void LocalInstruction::verify(inter_construct *IC, inter_tree_node *P, inter_package *owner, inter_error_message **E) {
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*E = VerifyingInter::TID_field(owner, P, KIND_LOCAL_IFLD);
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}
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void LocalInstruction::write(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P, inter_error_message **E) {
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inter_package *pack = InterPackage::container(P);
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inter_symbol *var_name = InterSymbolsTable::symbol_from_ID_in_package(pack, P->W.instruction[DEFN_LOCAL_IFLD]);
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if (var_name) {
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WRITE("local ");
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TextualInter::write_optional_type_marker(OUT, P, KIND_LOCAL_IFLD);
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WRITE("%S", InterSymbol::identifier(var_name));
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SymbolAnnotation::write_annotations(OUT, P, var_name);
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} else { *E = Inode::error(P, I"cannot write local", NULL); return; }
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}
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