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56 lines
2 KiB
OpenEdge ABL
56 lines
2 KiB
OpenEdge ABL
[PackageTypeInstruction::] The PackageType Construct.
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Defining the packagetype construct.
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@h Definition.
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For what this does and why it is used, see //inter: Textual Inter//.
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=
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void PackageTypeInstruction::define_construct(void) {
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inter_construct *IC = InterInstruction::create_construct(PACKAGETYPE_IST, I"packagetype");
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InterInstruction::defines_symbol_in_fields(IC, DEFN_PTYPE_IFLD, -1);
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InterInstruction::specify_syntax(IC, I"packagetype _IDENTIFIER");
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InterInstruction::data_extent_always(IC, 1);
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METHOD_ADD(IC, CONSTRUCT_READ_MTID, PackageTypeInstruction::read);
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METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, PackageTypeInstruction::write);
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InterInstruction::permit(IC, OUTSIDE_OF_PACKAGES_ICUP);
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}
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@h Instructions.
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In bytecode, the frame of a |packagetype| instruction is laid out with the
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compulsory words -- see //Inter Nodes// -- followed by:
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@d DEFN_PTYPE_IFLD (DATA_IFLD + 0)
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=
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inter_error_message *PackageTypeInstruction::new(inter_bookmark *IBM, inter_symbol *ptype,
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inter_ti level, inter_error_location *eloc) {
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inter_tree_node *P = Inode::new_with_1_data_field(IBM, PACKAGETYPE_IST,
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/* DEFN_PTYPE_IFLD: */ InterSymbolsTable::id_at_bookmark(IBM, ptype),
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eloc, level);
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inter_error_message *E = VerifyingInter::instruction(InterBookmark::package(IBM), P);
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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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@h Creating from textual Inter syntax.
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=
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void PackageTypeInstruction::read(inter_construct *IC, inter_bookmark *IBM,
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inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) {
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inter_symbol *ptype_name =
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TextualInter::new_symbol(eloc, InterBookmark::scope(IBM), ilp->mr.exp[0], E);
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if (*E) return;
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*E = PackageTypeInstruction::new(IBM, ptype_name, (inter_ti) ilp->indent_level, eloc);
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}
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@h Writing to textual Inter syntax.
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=
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void PackageTypeInstruction::write(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P) {
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inter_symbol *ptype_name = InterSymbolsTable::symbol_from_ID_at_node(P, DEFN_PTYPE_IFLD);
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WRITE("packagetype %S", InterSymbol::identifier(ptype_name));
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}
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