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Tobias Hunger
qt-creator
Commits
349e2d68
Commit
349e2d68
authored
Feb 19, 2009
by
Roberto Raggi
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Plain Diff
Initial work on unqualified and qualified name lookup.
parent
6178a44f
Changes
1
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1 changed file
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140 additions
and
4 deletions
+140
-4
tests/manual/binding/main.cpp
tests/manual/binding/main.cpp
+140
-4
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tests/manual/binding/main.cpp
View file @
349e2d68
...
...
@@ -43,6 +43,8 @@
#include <Symbols.h>
#include <Literals.h>
#include <vector>
#include <cstdio>
#include <cstdlib>
#include <cassert>
...
...
@@ -79,6 +81,11 @@ public:
/// Returns the binding associated with the given symbol.
NamespaceBinding
*
findOrCreateNamespaceBinding
(
Namespace
*
symbol
);
NamespaceBinding
*
resolveNamespace
(
QualifiedNameId
*
q
,
unsigned
index
,
unsigned
count
);
NamespaceBinding
*
resolveNamespace
(
Name
*
name
,
bool
lookAtParent
=
true
);
/// Helpers.
std
::
string
qualifiedId
()
const
;
void
dump
();
...
...
@@ -96,6 +103,9 @@ public: // attributes
/// This binding's connections.
Array
<
NamespaceBinding
*>
children
;
/// This binding's usings
Array
<
NamespaceBinding
*>
usings
;
/// This binding's namespace symbols.
Array
<
Namespace
*>
symbols
;
};
...
...
@@ -211,6 +221,99 @@ NamespaceBinding *NamespaceBinding::findOrCreateNamespaceBinding(Namespace *symb
return
binding
;
}
static
void
closure
(
NamespaceBinding
*
binding
,
Name
*
name
,
Array
<
NamespaceBinding
*>
*
bindings
)
{
for
(
unsigned
i
=
0
;
i
<
bindings
->
size
();
++
i
)
{
NamespaceBinding
*
b
=
bindings
->
at
(
i
);
if
(
b
==
binding
)
return
;
}
bindings
->
push_back
(
binding
);
assert
(
name
->
isNameId
());
Identifier
*
id
=
name
->
asNameId
()
->
identifier
();
bool
ignoreUsingDirectives
=
false
;
for
(
unsigned
i
=
0
;
i
<
binding
->
symbols
.
size
();
++
i
)
{
Namespace
*
symbol
=
binding
->
symbols
.
at
(
i
);
Scope
*
scope
=
symbol
->
members
();
for
(
Symbol
*
symbol
=
scope
->
lookat
(
id
);
symbol
;
symbol
=
symbol
->
next
())
{
if
(
symbol
->
isUsingDeclaration
()
||
symbol
->
isUsingNamespaceDirective
())
continue
;
//printf("found declaration at %s:%d\n", symbol->fileName(), symbol->line());
// ### FIXME: ignoreUsingDirectives = true;
break
;
}
}
if
(
ignoreUsingDirectives
)
return
;
for
(
unsigned
i
=
0
;
i
<
binding
->
usings
.
size
();
++
i
)
{
NamespaceBinding
*
u
=
binding
->
usings
.
at
(
i
);
closure
(
u
,
name
,
bindings
);
}
}
NamespaceBinding
*
NamespaceBinding
::
resolveNamespace
(
Name
*
name
,
bool
lookAtParent
)
{
if
(
!
name
)
return
0
;
else
if
(
NameId
*
nameId
=
name
->
asNameId
())
{
Array
<
NamespaceBinding
*>
bindings
;
closure
(
this
,
nameId
,
&
bindings
);
Array
<
NamespaceBinding
*>
results
;
for
(
unsigned
i
=
0
;
i
<
bindings
.
size
();
++
i
)
{
NamespaceBinding
*
binding
=
bindings
.
at
(
i
);
if
(
NamespaceBinding
*
b
=
binding
->
findNamespaceBinding
(
nameId
))
results
.
push_back
(
b
);
}
if
(
results
.
size
()
==
1
)
return
results
.
at
(
0
);
else
if
(
results
.
size
()
>
1
)
{
// ### FIXME: return 0;
return
results
.
at
(
0
);
}
else
if
(
parent
&&
lookAtParent
)
return
parent
->
resolveNamespace
(
name
);
}
else
if
(
QualifiedNameId
*
q
=
name
->
asQualifiedNameId
())
{
if
(
q
->
nameCount
()
==
1
)
{
assert
(
q
->
isGlobal
());
return
globalNamespaceBinding
()
->
resolveNamespace
(
q
->
nameAt
(
0
));
}
NamespaceBinding
*
current
=
this
;
if
(
q
->
isGlobal
())
current
=
globalNamespaceBinding
();
current
=
current
->
resolveNamespace
(
q
->
nameAt
(
0
));
for
(
unsigned
i
=
1
;
current
&&
i
<
q
->
nameCount
();
++
i
)
current
=
current
->
resolveNamespace
(
q
->
nameAt
(
i
),
false
);
return
current
;
}
return
0
;
}
// ### rewrite me
std
::
string
NamespaceBinding
::
qualifiedId
()
const
{
...
...
@@ -255,28 +358,38 @@ public:
Binder
();
virtual
~
Binder
();
NamespaceBinding
*
operator
()(
Symbol
*
symbol
)
{
return
bind
(
symbol
,
0
);
}
NamespaceBinding
*
operator
()(
TranslationUnit
*
u
,
Namespace
*
globals
)
{
TranslationUnit
*
previousUnit
=
unit
;
unit
=
u
;
NamespaceBinding
*
binding
=
bind
(
globals
,
0
);
unit
=
previousUnit
;
return
binding
;
}
protected:
NamespaceBinding
*
bind
(
Symbol
*
symbol
,
NamespaceBinding
*
binding
);
NamespaceBinding
*
findOrCreateNamespaceBinding
(
Namespace
*
symbol
);
NamespaceBinding
*
resolveNamespace
(
Name
*
name
);
NamespaceBinding
*
switchNamespaceBinding
(
NamespaceBinding
*
binding
);
using
SymbolVisitor
::
visit
;
virtual
bool
visit
(
Namespace
*
);
virtual
bool
visit
(
UsingNamespaceDirective
*
);
virtual
bool
visit
(
Class
*
);
virtual
bool
visit
(
Function
*
);
virtual
bool
visit
(
Block
*
);
private:
NamespaceBinding
*
namespaceBinding
;
TranslationUnit
*
unit
;
};
Binder
::
Binder
()
:
namespaceBinding
(
0
)
:
namespaceBinding
(
0
),
unit
(
0
)
{
}
Binder
::~
Binder
()
...
...
@@ -299,6 +412,15 @@ NamespaceBinding *Binder::findOrCreateNamespaceBinding(Namespace *symbol)
return
namespaceBinding
;
}
NamespaceBinding
*
Binder
::
resolveNamespace
(
Name
*
name
)
{
if
(
!
namespaceBinding
)
return
0
;
return
namespaceBinding
->
resolveNamespace
(
name
);
}
NamespaceBinding
*
Binder
::
switchNamespaceBinding
(
NamespaceBinding
*
binding
)
{
NamespaceBinding
*
previousBinding
=
namespaceBinding
;
...
...
@@ -319,6 +441,20 @@ bool Binder::visit(Namespace *symbol)
return
false
;
}
bool
Binder
::
visit
(
UsingNamespaceDirective
*
u
)
{
NamespaceBinding
*
resolved
=
resolveNamespace
(
u
->
name
());
if
(
!
resolved
)
{
unit
->
error
(
u
->
sourceLocation
(),
"expected namespace-name"
);
return
false
;
}
namespaceBinding
->
usings
.
push_back
(
resolved
);
return
false
;
}
bool
Binder
::
visit
(
Class
*
)
{
return
false
;
}
...
...
@@ -376,7 +512,7 @@ int main(int argc, char *argv[])
// bind
Binder
bind
;
NamespaceBinding
*
binding
=
bind
(
globalNamespace
);
NamespaceBinding
*
binding
=
bind
(
&
unit
,
globalNamespace
);
binding
->
dump
();
delete
binding
;
...
...
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