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Remove Examples/contract

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This set of examples was never tested/documented
There is an equivalent testcase in Examples/test-suite/contract.i
This commit is contained in:
William S Fulton 2020-08-15 12:26:21 +01:00
commit bc7a067587
10 changed files with 0 additions and 293 deletions
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11
Examples/contract/simple_c/example.c
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#include <stdio.h>
int Circle (int x, int y, int radius) {
/* Draw Circle */
printf("Drawing the circle...\n");
/* Return -1 to test contract post assertion */
if (radius == 2)
return -1;
else
return 1;
}

19
Examples/contract/simple_c/example.i
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/* File : example.i */
/* Basic C example for swig contract */
/* Tiger, University of Chicago, 2003 */
%module example
%contract Circle (int x, int y, int radius) {
require:
x >= 0;
y >= 0;
radius > x;
ensure:
Circle >= 0;
}
%inline %{
extern int Circle (int x, int y, int radius);
%}

17
Examples/contract/simple_c/runme1.py
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import example
# Call the Circle() function correctly
x = 1;
y = 1;
r = 3;
c = example.Circle(x, y, r)
# test post-assertion
x = 1;
y = 1;
r = 2;
c = example.Circle(x, y, r)
print "The return value of Circle(%d, %d, %d) is %d" % (x,y,r,c)

20
Examples/contract/simple_c/runme2.py
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import example
# Call the Circle() function correctly
x = 1;
y = 1;
r = 3;
c = example.Circle(x, y, r)
print "The return value of Circle(%d, %d, %d) is %d" % (x,y,r,c)
# test pre-assertion
x = 1;
y = -1;
r = 3;
c = example.Circle(x, y, r)
print "The return value of Circle(%d, %d, %d) is %d" % (x,y,r,c)

30
Examples/contract/simple_cxx/example.cxx
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#include "example.h"
#define M_PI 3.14159265358979323846
/* Move the shape to a new location */
void Shape::move(double dx, double dy) {
x += dx;
y += dy;
}
int Shape::nshapes = 0;
double Circle::area(void) {
/* return -1 is to test post-assertion */
if (radius == 1)
return -1;
return M_PI*radius*radius;
}
double Circle::perimeter(void) {
return 2*M_PI*radius;
}
double Square::area(void) {
return width*width;
}
double Square::perimeter(void) {
return 4*width;
}

34
Examples/contract/simple_cxx/example.h
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/* File : example.h */
class Shape {
public:
Shape() {
nshapes++;
}
virtual ~Shape() {
nshapes--;
}
double x, y;
void move(double dx, double dy);
virtual double area(void) = 0;
virtual double perimeter(void) = 0;
static int nshapes;
};
class Circle : public Shape {
private:
double radius;
public:
Circle(double r) : radius(r) { }
virtual double area(void);
virtual double perimeter(void);
};
class Square : public Shape {
private:
double width;
public:
Square(double w) : width(w) { }
virtual double area(void);
virtual double perimeter(void);
};

28
Examples/contract/simple_cxx/example.i
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%module example
%contract Circle::Circle(double radius) {
require:
radius > 0;
}
%contract Circle::area(void) {
ensure:
area > 0;
}
%contract Shape::move(double dx, double dy) {
require:
dx > 0;
}
/* should be no effect, since there is no move() for class Circle */
%contract Circle::move(double dx, double dy) {
require:
dy > 1;
}
# include must be after contracts
%{
#include "example.h"
%}
%include "example.h"

33
Examples/contract/simple_cxx/runme1.py
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import example
# Create the Circle object
r = 2;
print " Creating circle (radium: %d) :" % r
c = example.Circle(r)
# Set the location of the object
c.x = 20
c.y = 30
print " Here is its current position:"
print " Circle = (%f, %f)" % (c.x,c.y)
# ----- Call some methods -----
print "\n Here are some properties of the Circle:"
print " area = ", c.area()
print " perimeter = ", c.perimeter()
dx = 1;
dy = 1;
print " Moving with (%d, %d)..." % (dx, dy)
c.move(dx, dy)
del c
print "==================================="
# test construction */
r = -1;
print " Creating circle (radium: %d) :" % r
c = example.Circle(r)

44
Examples/contract/simple_cxx/runme2.py
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import example
# Create the Circle object
r = 2;
print " Creating circle (radium: %d) :" % r
c = example.Circle(r)
# Set the location of the object
c.x = 20
c.y = 30
print " Here is its current position:"
print " Circle = (%f, %f)" % (c.x,c.y)
# ----- Call some methods -----
print "\n Here are some properties of the Circle:"
print " area = ", c.area()
print " perimeter = ", c.perimeter()
dx = 1;
dy = 1;
print " Moving with (%d, %d)..." % (dx, dy)
c.move(dx, dy)
del c
print "==================================="
# test area function */
r = 1;
print " Creating circle (radium: %d) :" % r
c = example.Circle(r)
# Set the location of the object
c.x = 20
c.y = 30
print " Here is its current position:"
print " Circle = (%f, %f)" % (c.x,c.y)
# ----- Call some methods -----
print "\n Here are some properties of the Circle:"
print " area = ", c.area()

57
Examples/contract/simple_cxx/runme3.py
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import example
# Create the Circle object
r = 2;
print " Creating circle (radium: %d) :" % r
c = example.Circle(r)
# Set the location of the object
c.x = 20
c.y = 30
print " Here is its current position:"
print " Circle = (%f, %f)" % (c.x,c.y)
# ----- Call some methods -----
print "\n Here are some properties of the Circle:"
print " area = ", c.area()
print " perimeter = ", c.perimeter()
dx = 1;
dy = 1;
print " Moving with (%d, %d)..." % (dx, dy)
c.move(dx, dy)
del c
print "==================================="
# test move function */
r = 2;
print " Creating circle (radium: %d) :" % r
c = example.Circle(r)
# Set the location of the object
c.x = 20
c.y = 30
print " Here is its current position:"
print " Circle = (%f, %f)" % (c.x,c.y)
# ----- Call some methods -----
print "\n Here are some properties of the Circle:"
print " area = ", c.area()
print " perimeter = ", c.perimeter()
# no error for Circle's pre-assertion
dx = 1;
dy = -1;
print " Moving with (%d, %d)..." % (dx, dy)
c.move(dx, dy)
# error with Shape's pre-assertion
dx = -1;
dy = 1;
print " Moving with (%d, %d)..." % (dx, dy)
c.move(dx, dy)