ADT
aaron-thesis
arm-eh
ast-experimental
cleanup-dtors
ctor
deferred_resn
demangler
enum
forall-pointer-decay
gc_noraii
jacob/cs343-translation
jenkins-sandbox
memory
new-ast
new-ast-unique-expr
new-env
no_list
persistent-indexer
pthread-emulation
qualifiedEnum
resolv-new
string
with_gc
|
Last change
on this file since baba5d8 was 843054c2, checked in by Peter A. Buhr <pabuhr@…>, 10 years ago |
|
licencing: seventh groups of files
|
-
Property mode
set to
100644
|
|
File size:
1.4 KB
|
| Rev | Line | |
|---|
| [51b73452] | 1 | From the refrat (5.5) we have our specification:
|
|---|
| 2 |
|
|---|
| 3 | \section{Initialization} An expression that is used as an
|
|---|
| 4 | \nonterm{initializer} is treated as being cast to the type of the
|
|---|
| 5 | object being initialized. An expression used in an
|
|---|
| 6 | \nonterm{initializer-list} is treated as being cast to the type of
|
|---|
| 7 | the aggregate member that it initializes. In either case the cast
|
|---|
| 8 | must have a single unambiguous
|
|---|
| 9 | interpretation\index{interpretations}.
|
|---|
| 10 |
|
|---|
| 11 | Steps:
|
|---|
| 12 |
|
|---|
| 13 | - add a member function "void Resolver::visit( SynTree::DeclStmt
|
|---|
| 14 | *declStmt )"; for each DeclStmt:
|
|---|
| 15 |
|
|---|
| 16 | - do what you need to do to establish correspondences between
|
|---|
| 17 | expressions in the initializer and pieces of the object to be
|
|---|
| 18 | initialized
|
|---|
| 19 |
|
|---|
| 20 | - for each initializer expression, construct a cast expression that
|
|---|
| 21 | casts the value of the expression to the type of the corresponding
|
|---|
| 22 | sub-object
|
|---|
| 23 |
|
|---|
| 24 | - invoke the resolver recursively on each cast expression; it's an invariant
|
|---|
| 25 | of the resolver that attempting to resolve a cast expression results either
|
|---|
| 26 | in a single resolved expression (corresponding to the unambiguous interpretation
|
|---|
| 27 | referred to above) or a thrown SemanticError.
|
|---|
| 28 |
|
|---|
| 29 | - construct a new initializer from the resolved expressions
|
|---|
| 30 |
|
|---|
| 31 | You'll undoubtedly have to play with the CodeGen stuff a bit; I
|
|---|
| 32 | hacked it to spit out unresolved initializers for file-scope
|
|---|
| 33 | declarations so that real programs would compile. You'll want to make
|
|---|
| 34 | sure that resolved initializers for all declarations are being
|
|---|
| 35 | generated.
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
