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Added is_unique_value. Its semantics is equal to the old is_value method. The contract for is_value changed. See comments at ast.h for more information.

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-12-07 12:53:51 -08:00
parent bd0366eef7
commit a07b459fdf
19 changed files with 157 additions and 50 deletions
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29
src/ast/ast.cpp
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@ -872,6 +872,10 @@ bool basic_decl_plugin::is_value(app* a) const {
return a->get_decl() == m_true_decl || a->get_decl() == m_false_decl;
}
bool basic_decl_plugin::is_unique_value(app* a) const {
return is_value(a);
}
void basic_decl_plugin::finalize() {
#define DEC_REF(FIELD) if (FIELD) { m_manager->dec_ref(FIELD); }
#define DEC_ARRAY_REF(FIELD) m_manager->dec_array_ref(FIELD.size(), FIELD.begin())
@ -1151,6 +1155,10 @@ bool model_value_decl_plugin::is_value(app* n) const {
return is_app_of(n, m_family_id, OP_MODEL_VALUE);
}
bool model_value_decl_plugin::is_unique_value(app* n) const {
return is_value(n);
}
// -----------------------------------
//
// user_sort_plugin
@ -1442,6 +1450,27 @@ bool ast_manager::is_value(expr* e) const {
return false;
}
bool ast_manager::is_unique_value(expr* e) const {
decl_plugin const * p = 0;
if (is_app(e)) {
p = get_plugin(to_app(e)->get_family_id());
return p && p->is_unique_value(to_app(e));
}
return false;
}
bool ast_manager::are_equal(expr * a, expr * b) const {
if (is_app(a) && is_app(b)) {
app* ap = to_app(a), *bp = to_app(b);
decl_plugin const * p = get_plugin(ap->get_family_id());
if (!p) {
p = get_plugin(bp->get_family_id());
}
return p && p->are_equal(ap, bp);
}
return false;
}
bool ast_manager::are_distinct(expr* a, expr* b) const {
if (is_app(a) && is_app(b)) {
app* ap = to_app(a), *bp = to_app(b);