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Sequence Graphs

Sequence Graphs. Ongoing Work. Structure Builder (Tendril Software Inc., www.tendril.com) Code generation from sequence diagram-like structures, called sequence graphs Sequence graphs: overview part / implementation part Object-transportation automatic. Sequence Graph with generated code. A.

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Sequence Graphs

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  1. Sequence Graphs

  2. Ongoing Work • Structure Builder (Tendril Software Inc., www.tendril.com) • Code generation from sequence diagram-like structures, called sequence graphs • Sequence graphs: overview part / implementation part • Object-transportation automatic

  3. Sequence Graph with generated code A get_c() B get_d() C f() D 1 2 3 get_c(): in b:B; out c:C get_d(): in c:C; out d:D f(): in d:D; out x:X code in A: this.b.get_c().get_d().f() bad

  4. Sequence Graph with generated code A get_b() B get_c() C D get_d() 1 2 3 get_c(): in b:B; out c:C get_d(): in c:C; out d:D f(): in d:D; out x:X code in A: this.get_b().get_c().get_d().f() 4 f() X better

  5. 2 A get_c() B get_d() C f() D 1 4 3 get_e() C g() 5 get_c(): in b:B; out c:C get_d(): in c:C; out d:D get_e(): in c:C; out e:E f(): in d:D; out x:X g(): in e:E; out y:Y code in A: C c1 = b.get_c(); X x = c1.get_d().f(); Y y = c1.get_e().g(); E bad

  6. 1 2 A get_c() B get_d() C D f() get_q() 5 3 4 get_e() Q g() get_c(): in b:B; out c:C get_d(): in c:C; out d:D get_q(): in c:B; out q:Q f(): in d:D; out x:X g(): in e:E; out y:Y code in A: X x = get_b().get_c().get_d().f(); Y y = get_b().get_q().get_e().g(); 6 E Bad, not allowed

  7. 1 2 A get_c() B get_d() C D f() get_q() 5 3 B 4 get_e() Q g() get_c(): in b:B; out c:C get_d(): in c:C; out d:D get_q(): in c:B; out q:Q f(): in d:D; out x:X g(): in e:E; out y:Y code in A: X x = get_b().get_c().get_d().f(); Y y = get_b().get_q().get_e().g(); 6 E bad

  8. 2 A get_b() B get_c() C D get_d() 4 1 X 5 3 f() get_q() Q get_e() get_c(): in b:B; out c:C get_d(): in c:C; out d:D get_q(): in c:B; out q:Q f(): in d:D; out x:X g(): in e:E; out y:Y code in A: X x = get_b().get_c().get_d().f(); Y y = get_b().get_q().get_e().g(); 6 E 7 g() Y better Shift right one edge

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