@nativescript/core/utils/layout-helper/layout-helper-common.js

// cache the MeasureSpec constants here, to prevent extensive marshaling calls to and from Java
// TODO: While this boosts the performance it is error-prone in case Google changes these constants
export const MODE_SHIFT = 30;
export const MODE_MASK = 0x3 << MODE_SHIFT;
export const UNSPECIFIED = 0 << MODE_SHIFT;
export const EXACTLY = 1 << MODE_SHIFT;
export const AT_MOST = 2 << MODE_SHIFT;
export const MEASURED_HEIGHT_STATE_SHIFT = 0x00000010; /* 16 */
export const MEASURED_STATE_TOO_SMALL = 0x01000000;
export const MEASURED_STATE_MASK = 0xff000000;
export const MEASURED_SIZE_MASK = 0x00ffffff;
export function getMode(mode) {
    switch (mode) {
        case EXACTLY:
            return 'Exact';
        case AT_MOST:
            return 'AtMost';
        default:
            return 'Unspecified';
    }
}
export function getMeasureSpecMode(spec) {
    return spec & MODE_MASK;
}
export function getMeasureSpecSize(spec) {
    return spec & ~MODE_MASK;
}
export function measureSpecToString(measureSpec) {
    const mode = getMeasureSpecMode(measureSpec);
    const size = getMeasureSpecSize(measureSpec);
    let text = 'MeasureSpec: ';
    if (mode === UNSPECIFIED) {
        text += 'UNSPECIFIED ';
    }
    else if (mode === EXACTLY) {
        text += 'EXACTLY ';
    }
    else if (mode === AT_MOST) {
        text += 'AT_MOST ';
    }
    text += size;
    return text;
}
export function round(value) {
    const res = Math.floor(value + 0.5);
    if (res !== 0) {
        return res;
    }
    else if (value === 0) {
        return 0;
    }
    else if (value > 0) {
        return 1;
    }
    return -1;
}
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