ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsctordeferred_resndemanglerenumforall-pointer-decaygc_noraiijacob/cs343-translationjenkins-sandboxmemorynew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newstringwith_gc
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checked in by Peter A. Buhr <pabuhr@…>, 9 years ago
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[51b7345] | 1 | From the refrat (5.5) we have our specification: |
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| 2 | |
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| 3 | \section{Initialization} An expression that is used as an |
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| 4 | \nonterm{initializer} is treated as being cast to the type of the |
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| 5 | object being initialized. An expression used in an |
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| 6 | \nonterm{initializer-list} is treated as being cast to the type of |
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| 7 | the aggregate member that it initializes. In either case the cast |
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| 8 | must have a single unambiguous |
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| 9 | interpretation\index{interpretations}. |
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| 10 | |
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| 11 | Steps: |
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| 12 | |
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| 13 | - add a member function "void Resolver::visit( SynTree::DeclStmt |
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| 14 | *declStmt )"; for each DeclStmt: |
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| 15 | |
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| 16 | - do what you need to do to establish correspondences between |
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| 17 | expressions in the initializer and pieces of the object to be |
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| 18 | initialized |
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| 19 | |
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| 20 | - for each initializer expression, construct a cast expression that |
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| 21 | casts the value of the expression to the type of the corresponding |
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| 22 | sub-object |
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| 23 | |
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| 24 | - invoke the resolver recursively on each cast expression; it's an invariant |
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| 25 | of the resolver that attempting to resolve a cast expression results either |
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| 26 | in a single resolved expression (corresponding to the unambiguous interpretation |
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| 27 | referred to above) or a thrown SemanticError. |
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| 28 | |
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| 29 | - construct a new initializer from the resolved expressions |
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| 30 | |
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| 31 | You'll undoubtedly have to play with the CodeGen stuff a bit; I |
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| 32 | hacked it to spit out unresolved initializers for file-scope |
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| 33 | declarations so that real programs would compile. You'll want to make |
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| 34 | sure that resolved initializers for all declarations are being |
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| 35 | generated. |
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