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81 lines
3.4 KiB
OpenEdge ABL
81 lines
3.4 KiB
OpenEdge ABL
[Inter::Variable::] The Variable Construct.
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Defining the variable construct.
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@
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@e VARIABLE_IST
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=
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void Inter::Variable::define(void) {
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inter_construct *IC = Inter::Defn::create_construct(
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VARIABLE_IST,
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L"variable (%i+) (%i+) = (%c+)",
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I"variable", I"variables");
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METHOD_ADD(IC, CONSTRUCT_READ_MTID, Inter::Variable::read);
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METHOD_ADD(IC, CONSTRUCT_VERIFY_MTID, Inter::Variable::verify);
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METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, Inter::Variable::write);
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}
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@
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@d DEFN_VAR_IFLD 2
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@d KIND_VAR_IFLD 3
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@d VAL1_VAR_IFLD 4
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@d VAL2_VAR_IFLD 5
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@d EXTENT_VAR_IFR 6
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=
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void Inter::Variable::read(inter_construct *IC, inter_reading_state *IRS, inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) {
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*E = Inter::Defn::vet_level(IRS, VARIABLE_IST, ilp->indent_level, eloc);
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if (*E) return;
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inter_symbol *var_name = Inter::Textual::new_symbol(eloc, Inter::Bookmarks::scope(IRS), ilp->mr.exp[0], E);
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if (*E) return;
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inter_symbol *var_kind = Inter::Textual::find_symbol(IRS->read_into, eloc, Inter::Bookmarks::scope(IRS), ilp->mr.exp[1], KIND_IST, E);
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if (*E) return;
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for (int i=0; i<ilp->no_annotations; i++)
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Inter::Symbols::annotate(IRS->read_into, var_name, ilp->annotations[i]);
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inter_t var_val1 = 0;
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inter_t var_val2 = 0;
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*E = Inter::Types::read(ilp->line, eloc, IRS->read_into, IRS->current_package, var_kind, ilp->mr.exp[2], &var_val1, &var_val2, Inter::Bookmarks::scope(IRS));
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if (*E) return;
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*E = Inter::Variable::new(IRS, Inter::SymbolsTables::id_from_IRS_and_symbol(IRS, var_name), Inter::SymbolsTables::id_from_IRS_and_symbol(IRS, var_kind), var_val1, var_val2, (inter_t) ilp->indent_level, eloc);
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}
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inter_error_message *Inter::Variable::new(inter_reading_state *IRS, inter_t VID, inter_t KID, inter_t var_val1, inter_t var_val2, inter_t level, inter_error_location *eloc) {
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inter_frame P = Inter::Frame::fill_4(IRS, VARIABLE_IST, VID, KID, var_val1, var_val2, eloc, level);
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inter_error_message *E = Inter::Defn::verify_construct(IRS->current_package, P);
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if (E) return E;
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Inter::Frame::insert(P, IRS);
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return NULL;
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}
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void Inter::Variable::verify(inter_construct *IC, inter_frame P, inter_package *owner, inter_error_message **E) {
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if (P.extent != EXTENT_VAR_IFR) { *E = Inter::Frame::error(&P, I"extent wrong", NULL); return; }
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*E = Inter__Verify__defn(owner, P, DEFN_VAR_IFLD); if (*E) return;
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*E = Inter::Verify::symbol(owner, P, P.data[KIND_VAR_IFLD], KIND_IST);
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}
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void Inter::Variable::write(inter_construct *IC, OUTPUT_STREAM, inter_frame P, inter_error_message **E) {
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inter_symbol *var_name = Inter::SymbolsTables::symbol_from_frame_data(P, DEFN_VAR_IFLD);
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inter_symbol *var_kind = Inter::SymbolsTables::symbol_from_frame_data(P, KIND_VAR_IFLD);
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if ((var_name) && (var_kind)) {
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WRITE("variable %S %S = ", var_name->symbol_name, var_kind->symbol_name);
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Inter::Types::write(OUT, P.repo_segment->owning_repo, var_kind, P.data[VAL1_VAR_IFLD], P.data[VAL2_VAR_IFLD], Inter::Packages::scope_of(P), FALSE);
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Inter::Symbols::write_annotations(OUT, P.repo_segment->owning_repo, var_name);
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} else { *E = Inter::Frame::error(&P, I"cannot write variable", NULL); return; }
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}
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inter_symbol *Inter::Variable::kind_of(inter_symbol *con_symbol) {
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if (con_symbol == NULL) return NULL;
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inter_frame D = Inter::Symbols::defining_frame(con_symbol);
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if (Inter::Frame::valid(&D) == FALSE) return NULL;
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if (D.data[ID_IFLD] != VARIABLE_IST) return NULL;
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return Inter::SymbolsTables::symbol_from_frame_data(D, KIND_VAR_IFLD);
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}
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