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84 lines
2.9 KiB
OpenEdge ABL
84 lines
2.9 KiB
OpenEdge ABL
[CConditions::] C Conditions.
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Evaluating conditions.
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@
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=
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int CConditions::compile_primitive(code_generation *gen, inter_ti bip, inter_tree_node *P) {
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text_stream *OUT = CodeGen::current(gen);
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switch (bip) {
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case NOT_BIP: WRITE("(!("); INV_A1; WRITE("))"); break;
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case AND_BIP: WRITE("(("); INV_A1; WRITE(") && ("); INV_A2; WRITE("))"); break;
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case OR_BIP: WRITE("(("); INV_A1; WRITE(") || ("); INV_A2; WRITE("))"); break;
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case EQ_BIP: @<Generate comparison@>; break;
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case NE_BIP: @<Generate comparison@>; break;
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case GT_BIP: @<Generate comparison@>; break;
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case GE_BIP: @<Generate comparison@>; break;
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case LT_BIP: @<Generate comparison@>; break;
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case LE_BIP: @<Generate comparison@>; break;
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case OFCLASS_BIP: @<Generate comparison@>; break;
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case HAS_BIP: @<Generate comparison@>; break;
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case HASNT_BIP: @<Generate comparison@>; break;
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case IN_BIP: @<Generate comparison@>; break;
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case NOTIN_BIP: @<Generate comparison@>; break;
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case PROVIDES_BIP: @<Generate comparison@>; break;
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case ALTERNATIVE_BIP: internal_error("loose ALTERNATIVE_BIP primitive node"); break;
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default: return NOT_APPLICABLE;
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}
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return FALSE;
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}
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@<Generate comparison@> =
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CConditions::comparison_r(gen, bip, InterTree::first_child(P), InterTree::second_child(P), 0);
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@ =
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void CConditions::comparison_r(code_generation *gen,
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inter_ti bip, inter_tree_node *X, inter_tree_node *Y, int depth) {
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if (Y->W.data[ID_IFLD] == INV_IST) {
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if (Y->W.data[METHOD_INV_IFLD] == INVOKED_PRIMITIVE) {
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inter_symbol *prim = Inter::Inv::invokee(Y);
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inter_ti ybip = Primitives::to_bip(gen->from, prim);
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if (ybip == ALTERNATIVE_BIP) {
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text_stream *OUT = CodeGen::current(gen);
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if (depth == 0) { WRITE("(i7_tmp = "); CodeGen::FC::frame(gen, X); WRITE(", ("); }
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CConditions::comparison_r(gen, bip, NULL, InterTree::first_child(Y), depth+1);
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if ((bip == NE_BIP) || (bip == NOTIN_BIP) || (bip == HASNT_BIP)) WRITE(" && ");
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else WRITE(" || ");
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CConditions::comparison_r(gen, bip, NULL, InterTree::second_child(Y), depth+1);
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if (depth == 0) { WRITE("))"); }
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return;
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}
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}
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}
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text_stream *OUT = CodeGen::current(gen);
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int positive = TRUE;
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text_stream *test_fn = CObjectModel::test_with_function(bip, &positive);
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if (Str::len(test_fn) > 0) {
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WRITE("(%S(", test_fn);
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@<Compile first compared@>;
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WRITE(", ");
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@<Compile second compared@>;
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WRITE(")");
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if (positive == FALSE) WRITE(" == 0");
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WRITE(")");
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} else {
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WRITE("("); @<Compile first compared@>;
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switch (bip) {
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case EQ_BIP: WRITE(" == "); break;
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case NE_BIP: WRITE(" != "); break;
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case GT_BIP: WRITE(" > "); break;
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case GE_BIP: WRITE(" >= "); break;
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case LT_BIP: WRITE(" < "); break;
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case LE_BIP: WRITE(" <= "); break;
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}
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@<Compile second compared@>; WRITE(")");
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}
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}
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@<Compile first compared@> =
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if (X) CodeGen::FC::frame(gen, X); else WRITE("i7_tmp");
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@<Compile second compared@> =
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CodeGen::FC::frame(gen, Y);
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