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66 lines
2.4 KiB
OpenEdge ABL
66 lines
2.4 KiB
OpenEdge ABL
[Inter::Code::] The Code Construct.
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Defining the Code construct.
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@
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@e CODE_IST
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=
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void Inter::Code::define(void) {
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inter_construct *IC = InterConstruct::create_construct(
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CODE_IST,
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L"code",
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I"code", I"codes");
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IC->min_level = 0;
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IC->max_level = 100000000;
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IC->usage_permissions = INSIDE_CODE_PACKAGE + CAN_HAVE_CHILDREN;
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METHOD_ADD(IC, CONSTRUCT_READ_MTID, Inter::Code::read);
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METHOD_ADD(IC, CONSTRUCT_VERIFY_MTID, Inter::Code::verify);
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METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, Inter::Code::write);
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METHOD_ADD(IC, VERIFY_INTER_CHILDREN_MTID, Inter::Code::verify_children);
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}
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@
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@d BLOCK_CODE_IFLD 2
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@d EXTENT_CODE_IFR 3
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=
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void Inter::Code::read(inter_construct *IC, inter_bookmark *IBM, inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) {
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if (SymbolAnnotation::nonempty(&(ilp->set))) { *E = Inter::Errors::plain(I"__annotations are not allowed", eloc); return; }
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*E = InterConstruct::vet_level(IBM, CODE_IST, ilp->indent_level, eloc);
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if (*E) return;
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inter_package *routine = InterConstruct::get_latest_block_package();
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if (routine == NULL) { *E = Inter::Errors::plain(I"'code' used outside function", eloc); return; }
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*E = Inter::Code::new(IBM, ilp->indent_level, eloc);
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}
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inter_error_message *Inter::Code::new(inter_bookmark *IBM, int level, inter_error_location *eloc) {
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inter_tree_node *P = Inode::new_with_1_data_field(IBM, CODE_IST, 0, eloc, (inter_ti) level);
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inter_error_message *E = InterConstruct::verify_construct(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 Inter::Code::verify(inter_construct *IC, inter_tree_node *P, inter_package *owner, inter_error_message **E) {
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if (P->W.extent != EXTENT_CODE_IFR) *E = Inode::error(P, I"extent wrong", NULL);
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}
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void Inter::Code::write(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P, inter_error_message **E) {
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WRITE("code");
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}
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void Inter::Code::verify_children(inter_construct *IC, inter_tree_node *P, inter_error_message **E) {
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LOOP_THROUGH_INTER_CHILDREN(C, P) {
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if ((C->W.instruction[0] != INV_IST) && (C->W.instruction[0] != SPLAT_IST) && (C->W.instruction[0] != EVALUATION_IST) && (C->W.instruction[0] != LABEL_IST) && (C->W.instruction[0] != VAL_IST) && (C->W.instruction[0] != COMMENT_IST) && (C->W.instruction[0] != NOP_IST)) {
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*E = Inode::error(C, I"only an inv, a val, a splat, a concatenate or a label can be below a code", NULL);
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return;
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}
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}
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}
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