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86 lines
3.7 KiB
OpenEdge ABL
86 lines
3.7 KiB
OpenEdge ABL
[Inter::Local::] The Local Construct.
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Defining the local construct.
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@
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@e LOCAL_IST
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=
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void Inter::Local::define(void) {
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inter_construct *IC = Inter::Defn::create_construct(
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LOCAL_IST,
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L"local (%C+) (%c+)",
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I"local", I"locals");
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IC->min_level = 0;
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IC->max_level = 0;
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IC->usage_permissions = INSIDE_CODE_PACKAGE;
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METHOD_ADD(IC, CONSTRUCT_READ_MTID, Inter::Local::read);
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METHOD_ADD(IC, CONSTRUCT_VERIFY_MTID, Inter::Local::verify);
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METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, Inter::Local::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 Inter::Local::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, LOCAL_IST, ilp->indent_level, eloc);
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if (*E) return;
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inter_package *routine = Inter::Defn::get_latest_block_package();
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if (routine == NULL) { *E = Inter::Errors::plain(I"'local' used outside function", eloc); return; }
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inter_symbols_table *locals = Inter::Packages::scope(routine);
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if (locals == NULL) { *E = Inter::Errors::plain(I"function has no symbols table", eloc); return; }
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inter_symbol *var_name = Inter::Textual::find_undefined_symbol(IBM, eloc, locals, ilp->mr.exp[0], E);
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if (*E) return;
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if ((Inter::Symbols::get_scope(var_name) != PRIVATE_ISYMS) ||
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(Inter::Symbols::get_type(var_name) != MISC_ISYMT)) { *E = Inter::Errors::plain(I"symbol of wrong S-type", eloc); return; }
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inter_symbol *var_kind = Inter::Textual::find_symbol(Inter::Bookmarks::tree(IBM), eloc, Inter::Bookmarks::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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*E = Inter::Local::new(IBM, var_name, var_kind, ilp->terminal_comment, (inter_ti) ilp->indent_level, eloc);
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}
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inter_error_message *Inter::Local::new(inter_bookmark *IBM, inter_symbol *var_name, inter_symbol *var_kind, inter_ti ID, inter_ti level, inter_error_location *eloc) {
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inter_tree_node *P = Inode::fill_3(IBM, LOCAL_IST, 0, Inter::SymbolsTables::id_from_IRS_and_symbol(IBM, var_name), var_kind?(Inter::SymbolsTables::id_from_IRS_and_symbol(IBM, var_kind)):0, eloc, level);
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Inode::attach_comment(P, ID);
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inter_error_message *E = Inter::Defn::verify_construct(Inter::Bookmarks::package(IBM), P); if (E) return E;
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Inter::Bookmarks::insert(IBM, P);
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return NULL;
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}
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void Inter::Local::verify(inter_construct *IC, inter_tree_node *P, inter_package *owner, inter_error_message **E) {
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if (P->W.extent != EXTENT_LOCAL_IFR) { *E = Inode::error(P, I"extent wrong", NULL); return; }
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inter_symbols_table *locals = Inter::Packages::scope(owner);
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if (locals == NULL) { *E = Inode::error(P, I"no symbols table in function", NULL); return; }
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*E = Inter::Verify::local_defn(P, DEFN_LOCAL_IFLD, locals); if (*E) return;
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*E = Inter::Verify::symbol(owner, P, P->W.data[KIND_LOCAL_IFLD], KIND_IST); if (*E) return;
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}
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void Inter::Local::write(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P, inter_error_message **E) {
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inter_package *pack = Inter::Packages::container(P);
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inter_symbol *var_name = Inter::SymbolsTables::local_symbol_from_id(pack, P->W.data[DEFN_LOCAL_IFLD]);
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inter_symbol *var_kind = Inter::SymbolsTables::symbol_from_frame_data(P, KIND_LOCAL_IFLD);
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if (var_name) {
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WRITE("local %S %S", var_name->symbol_name, var_kind->symbol_name);
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Inter::Symbols::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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inter_symbol *Inter::Local::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.data[ID_IFLD] != LOCAL_IST) return NULL;
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return Inter::SymbolsTables::symbol_from_frame_data(D, KIND_LOCAL_IFLD);
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}
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