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80 lines
3.4 KiB
OpenEdge ABL
80 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_bookmark *IBM, inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) {
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*E = Inter::Defn::vet_level(IBM, 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, InterBookmark::scope(IBM), ilp->mr.exp[0], E);
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if (*E) return;
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inter_symbol *var_kind = Inter::Textual::find_symbol(InterBookmark::tree(IBM), eloc, InterBookmark::scope(IBM), ilp->mr.exp[1], KIND_IST, E);
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if (*E) return;
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Inter::Annotations::copy_set_to_symbol(&(ilp->set), var_name);
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inter_ti var_val1 = 0;
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inter_ti var_val2 = 0;
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*E = Inter::Types::read(ilp->line, eloc, InterBookmark::tree(IBM), InterBookmark::package(IBM), var_kind, ilp->mr.exp[2], &var_val1, &var_val2, InterBookmark::scope(IBM));
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if (*E) return;
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*E = Inter::Variable::new(IBM, InterSymbolsTables::id_from_IRS_and_symbol(IBM, var_name), InterSymbolsTables::id_from_IRS_and_symbol(IBM, var_kind), var_val1, var_val2, (inter_ti) ilp->indent_level, eloc);
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}
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inter_error_message *Inter::Variable::new(inter_bookmark *IBM, inter_ti VID, inter_ti KID, inter_ti var_val1, inter_ti var_val2, inter_ti level, inter_error_location *eloc) {
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inter_tree_node *P = Inode::new_with_4_data_fields(IBM, VARIABLE_IST, VID, KID, var_val1, var_val2, eloc, level);
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inter_error_message *E = Inter::Defn::verify_construct(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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void Inter::Variable::verify(inter_construct *IC, inter_tree_node *P, inter_package *owner, inter_error_message **E) {
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if (P->W.extent != EXTENT_VAR_IFR) { *E = Inode::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->W.instruction[KIND_VAR_IFLD], KIND_IST);
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}
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void Inter::Variable::write(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P, inter_error_message **E) {
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inter_symbol *var_name = InterSymbolsTables::symbol_from_frame_data(P, DEFN_VAR_IFLD);
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inter_symbol *var_kind = InterSymbolsTables::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, var_kind, P->W.instruction[VAL1_VAR_IFLD], P->W.instruction[VAL2_VAR_IFLD], InterPackage::scope_of(P), FALSE);
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Inter::Symbols::write_annotations(OUT, P, var_name);
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} else { *E = Inode::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_tree_node *D = Inter::Symbols::definition(con_symbol);
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if (D == NULL) return NULL;
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if (D->W.instruction[ID_IFLD] != VARIABLE_IST) return NULL;
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return InterSymbolsTables::symbol_from_frame_data(D, KIND_VAR_IFLD);
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}
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