source: tests/withStatement.cfa @ 686cb63

//
// Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// tupleFunction.c --
//
// Author           : Rob Schluntz
// Created On       : Mon Dec 04 17:41:45 2017
// Last Modified By : Peter A. Buhr
// Last Modified On : Mon Dec 24 19:08:18 2018
// Update Count     : 5
//

#include <fstream.hfa>

struct S {
        int i;
        // dynamically allocated member ensures ctor/dtors are called correctly on temporaries
        int * ptr;
};

// with clause on reference parameter
void ?{}( S & this, int n ) with( this ) {
        i = n;
        ptr = (int *)malloc( sizeof(int) );
}

void ?{}( S & this ) {
        this{ 0 };
}

void ?{}( S & this, S other ) {
        this{ other.i };
}

S ?=?( S & this, S other ) with( this ) {
        i = other.i;
        *ptr = *other.ptr;
        return this;
}

void ^?{}( S & this ) with( this ) {
        free( ptr );
}

struct S2 {
        S s;
};

void ?{}( S2 & this, int n ) {
        (this.s){ n };
}

forall( otype T )
struct Box {
        T x;
};

forall( otype T )
void ?{}( Box(T) & this ) with( this ) { // with clause in polymorphic function
        x{};
}

void print( int i ) { sout | i; }

forall( otype T | { void print( T ); })
void foo( T t ) {
        Box( T ) b = { t };
        with( b ) {  // with statement in polymorphic function
                print( x );
        }
}

// ensure with-statement temporary generation works correctly
S mk() {
        sout | "called mk";
        return (S){ 444 };
}

// ensure with-statement temporary generation with reference-returning functions works correctly
S & ref() {
        static S var = { 123456789 };
        return var;
}

int main() {
        S2 s2 = { 12345 };
        with ( s2) {
                with( s ) { // with s2.s
                        sout | i | s.i | s2.s.i;
                        foo( i );  // s.i
                        with( mk()) {
                                sout | i | i | i;
                                with( ref()) {
                                        sout | i | i | i;
                                } // with ref()
                                with( ref()) {
                                        sout | i | i | i;
                                } // with ref()
                        } // with mk()
                } // with s
        } // with s2
}

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