a coordination aspect language

coordinator Shape {

selfex adjustLocation;

selfex adjustSize;

mutex {adjustLocation, getX};

mutex {adjustLocation, getY};

mutex {adjustSize, getWidth};

mutex {adjustSize, getHeight};

}

public class Shape {

protected int x = 0;

protected int y = 0;

protected int w = 0;

protected int h = 0;

int getX() { return x; }

int getY() { return y; }

int getWidth(){ return w; }

int getHeight(){ return h; }

void adjustLocation() {

x = longCalculation1();

y = longCalculation2();

}

void adjustSize() {

w = longCalculation3();

h = longCalculation4();

}

}

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