@eagleoutice/flowr
Version:
Static Dataflow Analyzer and Program Slicer for the R Programming Language
69 lines • 2.59 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DataFrameDomain = void 0;
const positive_interval_domain_1 = require("../domains/positive-interval-domain");
const product_domain_1 = require("../domains/product-domain");
const set_range_domain_1 = require("../domains/set-range-domain");
/**
* The data frame abstract domain as product domain of a column names domain, column count domain, and row count domain.
*/
class DataFrameDomain extends product_domain_1.ProductDomain {
create(value) {
return new DataFrameDomain(value);
}
/**
* The current abstract value of the column names domain.
*/
get colnames() {
return this.value.colnames;
}
/**
* The current abstract value of the column count domain.
*/
get cols() {
return this.value.cols;
}
/**
* The current abstract value of the row count domain.
*/
get rows() {
return this.value.rows;
}
static bottom(maxColNames) {
return new DataFrameDomain({
colnames: set_range_domain_1.SetRangeDomain.bottom(maxColNames),
cols: positive_interval_domain_1.PosIntervalDomain.bottom(),
rows: positive_interval_domain_1.PosIntervalDomain.bottom()
});
}
static top(maxColNames) {
return new DataFrameDomain({
colnames: set_range_domain_1.SetRangeDomain.top(maxColNames),
cols: positive_interval_domain_1.PosIntervalDomain.top(),
rows: positive_interval_domain_1.PosIntervalDomain.top()
});
}
reduce(value) {
if (value.colnames.isValue() && value.cols.isValue()) {
if (value.colnames.value.min.size >= value.cols.value[1]) {
value = {
...value,
colnames: value.colnames.meet({ min: new Set(), range: value.colnames.value.min })
};
}
}
if (value.colnames.isValue() && value.cols.isValue()) {
const minColNames = value.colnames.value.min.size;
const maxColNames = value.colnames.isFinite() ? value.colnames.value.min.size + value.colnames.value.range.size : Infinity;
if (minColNames > value.cols.value[0] || maxColNames < value.cols.value[1]) {
value = {
...value,
cols: value.cols.meet([minColNames, maxColNames])
};
}
}
return value;
}
}
exports.DataFrameDomain = DataFrameDomain;
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