Summary:
This diff removes the redundancy in the representation of types where
struct types could be represented either directly using Tstruct or
indirectly using Tvar to refer to the type environment. A consequence
is that it is much harder to construct large type values.
Reviewed By: sblackshear, cristianoc
Differential Revision: D3839753
fbshipit-source-id: cf04ea5
Summary:
There were overly complex and different ways of identifying C++/objC languages. Simplify and unify them.
How I came up with naming - there are two languages C and C++. You can apply "Objective-" extention to both of them.
We usually need to differentiate C and C++ (different AST) and whether it's extended (checks specific to ObjC)
Reviewed By: dulmarod
Differential Revision: D3804457
fbshipit-source-id: 685e40a
Summary:
This helps avoid some unintended reports where the actual is known to point to
a specific object before a call to a skipped function. This requires a change
in the plugin to export more info about const types.
Reviewed By: dulmarod
Differential Revision: D3711901
fbshipit-source-id: f5c903e
Summary:
Make necessary changes so that the clang frontend compiles with the
corresponding changes to the facebook clang plugins. Does not actually use the
extra qualifier information yet.
depends on D3684150
Reviewed By: akotulski
Differential Revision: D3684173
fbshipit-source-id: f715f75
Summary:
Move the Sil.attribute type and associated types and operations to a new
PredSymb module.
Reviewed By: cristianoc
Differential Revision: D3683834
fbshipit-source-id: d3606a8
Summary:
Use Itanium mangling for C++ functions/methods instead of raw type name. This is a step towards removing expensive `ti_raw` field from `type_info`.
For virtual methods, use mangled name of the method from base class in order for dynamic dispatch to work.
Reviewed By: dulmarod
Differential Revision: D3556118
fbshipit-source-id: e45edb5
Summary:
Class names fragile, easy to break and they introduce another level of indirection.
Since C++ translation doesn't need names, pass decl pointers everywhere.
Doing otherwise will most likely result in assert false.
Handling of class names in objc translation is more involving and it's left
for now. Later, objc can use same mechanism as C++.
Reviewed By: dulmarod
Differential Revision: D3570176
fbshipit-source-id: b957aba
Summary:
When clang instantiates template function with argument pack, it will
give the same name to all parameters coming from the pack. To avoid
name collisions, always add index of argument's position to mangled part
of the variable.
Seemingly unrelated changes are to make existing tests pass (don't use
simple variable name where it matters)
Reviewed By: dulmarod
Differential Revision: D3503608
fbshipit-source-id: 794093a
Summary:
Now that array types record only static - and therefore constant -
lengths, Sil typ and exp no longer need to be mutually recursive.
This diff:
- splits the recursion in the type definitions of typ and exp,
- splits the recursion in the comparison and pretty-printing
functions,
- and then refactors typ into a separate module.
Reviewed By: cristianoc
Differential Revision: D3423575
fbshipit-source-id: 6130630
Summary:
Pass object by reference every time struct object is passed by value
in C++. Do it only for C++/objC++ where we have guarantee that the
object which is passed will be temporary one (created by copy constructor).
Reviewed By: jberdine
Differential Revision: D3346271
fbshipit-source-id: d3e5daa
Summary:
Non-fatal warnings are only checked by `make -C infer/src test_build`,
which should be part of `make test`
Reviewed By: sblackshear
Differential Revision: D3301913
fbshipit-source-id: 8196e03
Summary:
Reimplement command line options in preparation for uniformly passing
options from the top-level infer driver that invokes a build command
through the build system to the descendant infer processes.
All command line options of all executables are collected into Config,
and declared using a new CommandLineOption module that supports
maintining backward compatibility with the current command line
interface. Very few values representing command line options are
mutable now, as they are set once during parsing but are constant
thereafter. All ordering dependencies are contained within the
implementation of Config, and the implementation of Config is careful to
avoid unintended interactions and ordering dependencies between options.
Reviewed By: jvillard
Differential Revision: D3273345
fbshipit-source-id: 8e8c6fa
Summary:This diff translate cpp lambdas. For the moment it does not take care of
captured variables. Captured variables will come in the next diff.
Reviewed By: dulmarod
Differential Revision: D3114790
fb-gh-sync-id: bf36450
fbshipit-source-id: bf36450
Summary:public
When a conditional is the last instruction, there will be a join node leading directly to the exit node.
Some instructions, such as nullification of dead variables, and abstraction, are added to the control flow graph automatically. But, join nodes cannot contain instructions. So when a procedure ends with a conditional, there might be no place to store these instructions.
This diff adds one extra node between the join and the exit node in that situation.
Reviewed By: jvillard
Differential Revision: D3179056
fb-gh-sync-id: 2b9cd7e
fbshipit-source-id: 2b9cd7e
Summary:public
Eliminate the use of the -open Utils command line option passed to the compiler in favor of `open! Utils` in each source file. While slightly convenient, this option causes more headaches than it is worth with other tools e.g. merlin.
Reviewed By: jvillard
Differential Revision: D3168193
fb-gh-sync-id: 4285ef6
fbshipit-source-id: 4285ef6
Summary:public
I have seen enough comments in this space by people during code review to switch on the analyses the compiler can already do. This diff is an automated renaming of unused identifiers to _, with a few additional changes made when reading the diff of the results for things that stood out as particularly strange. This base-lines all of the existing warnings. I'm not sure this is a good idea, since it might be better for those familiar with each part of the code to look at these warnings and use them as pointers to suspicious code.
Reviewed By: jeremydubreil
Differential Revision: D2938376
fb-gh-sync-id: 6e67817
shipit-source-id: 6e67817
Summary:
public
Add type of return parameter to the context. It allows for better translation
of returnStmt and will be necessary for easy implementation of constructor init lists
Reviewed By: cristianoc
Differential Revision: D2890838
fb-gh-sync-id: e791c3d
Summary:
public
C++ allows for parameters with empty names (unused/default copy constructors). Make backend happy by assigning a non-empty
name to these variables
Reviewed By: jvillard
Differential Revision: D2895550
fb-gh-sync-id: b466397
Summary:
public
1. When function uses return parameter instead of returning directly, populate that parameter.
2. Turn on new feature for C/C++ functions/methods that return structured types
Reviewed By: jberdine
Differential Revision: D2865091
fb-gh-sync-id: e15e6eb
Summary:
public
This information will be useful when returning values
Reviewed By: jberdine, jvillard
Differential Revision: D2864864
fb-gh-sync-id: 36da0bb
Summary:
public
Introduce additional parameter for functions returning struct types - instead of returning it, populate output parameter.
This diff just changes method signature, there are more coming
Reviewed By: jberdine
Differential Revision: D2864842
fb-gh-sync-id: 52fc12c
Summary:
public
Remove the need to create a record with two elements to create a procedure description
Reviewed By: cristianoc
Differential Revision: D2872744
fb-gh-sync-id: d26bbdc
Summary:
public
Get newest version of facebook-clang-plugin that replaces pointers from strings to ints.
Fix all compilation issues infer has
Reviewed By: jvillard
Differential Revision: D2815144
fb-gh-sync-id: e93d4b3
Summary:
public
Using Typename.t in the list of superclasses to match the type for the key of the type environment. This avoids to make back and forth convertions from typename to type (csu, mangled name).
Depends on D2786574
Reviewed By: jberdine
Differential Revision: D2792116
fb-gh-sync-id: 6100f1a
Summary:
public
The paramtere where defined as simple strings in the procedure description. This diff force the use of the Mangled module to avoid possible conflict when converting variable back and forth from string to pvar. The code is now more consistent as the local variable were already named using mangled names.
Reviewed By: jberdine
Differential Revision: D2782863
fb-gh-sync-id: 1867574
Summary:
public
Move the naming of types to it own module, so that it can be used by modules `Sil` depends from like `Procname`
Reviewed By: jberdine
Differential Revision: D2773148
fb-gh-sync-id: a89f595
Summary:
public
Move the representation of data-structure into it own module, so that it can be used by modules `Sil` depends from like `Procname`.
Reviewed By: jberdine
Differential Revision: D2772791
fb-gh-sync-id: cda4e3a
Summary:
public
Treat destructors in the same way we treat methods/constructors.
It doesn't deal with inheritance/composition - we'll need to add calls to these
destructors later
Reviewed By: dulmarod
Differential Revision: D2769142
fb-gh-sync-id: b1c77e1
Summary:
public there was a problem with
templated method names that had '/' in its names.
This happened for names like this: `method_name<(anonymous lambda in path/to/src:1:1)>`
Plus random fix to backend logging
Reviewed By: dulmarod
Differential Revision: D2749359
fb-gh-sync-id: b9a0fcd
Summary:
public The concept of generated method is not used anymore, so it is removed.
In general, I think we have noticed that generating code in the frontend is not the best
idea because it decreases performance, it's better to do it in the backend like with the
getters/setters.
Reviewed By: akotulski
Differential Revision: D2739142
fb-gh-sync-id: 0cf9535
Summary:
public This continues the work on adding builtins for getters and setters
and removing the generated code from the frontend. This is extending it to setters and
removing the preanalysis that is no longer needed.
Reviewed By: akotulski
Differential Revision: D2734499
fb-gh-sync-id: 7cf5749
Summary:
public
After supporting template classes and template functions, it's time
to support template methods (they are very similar to template functions)
Reviewed By: dulmarod
Differential Revision: D2734807
fb-gh-sync-id: 41c7f96
Summary:
public The ivar corresponding to the property is only available in the ast when the
implementation of the peroperty is available. Otherwise we add an ivar with the correct type
and the default name to the tenv and use it in the getter (and later in the setter).
This was not causing crashes because the generated code was swallowing the Missing_fld exception.
Now it flags it.
Reviewed By: akotulski
Differential Revision: D2734217
fb-gh-sync-id: 21c62af
Summary:
public Using the new information from the plugin that links method decls in objc with their
properties if they are getters. Setters to be done in next diff.
Reviewed By: ddino
Differential Revision: D2729511
fb-gh-sync-id: dc58894
Summary:
public This puts the bugs found with the checker strong delegate to a dummy method.
The error message will appear in the line of the class implementation definition, since the properties
are likely to be defined in the h file, and getting the reporting in a file that is not the current is
difficult.
Reviewed By: ddino
Differential Revision: D2718016
fb-gh-sync-id: 66273a4
Summary: public This only supports parameters for now, but should be easy to extend to return values and fields. The work of this diff is all in the translation--the task of finding annotations and doing the actual checking is handled by existing code.
Reviewed By: akotulski
Differential Revision: D2706791
fb-gh-sync-id: 0d706a8
Summary: public
We were generating getters and setters in the frontend, and then removing them if they were not needed
in the preanalysis. This diff adds a builtin getter that gets called if we are going to skip the function. That
means, if there was a getter written by the developers we still use that one rather than the builtin.
Code for setter and cleanup of preanalysis will come in a next diff.
Reviewed By: jvillard
Differential Revision: D2702890
fb-gh-sync-id: d65f25e
Summary: public
`this` can't be null in C++ methods, make backend aware of it.
Behavior for other languages remains the same
Reviewed By: dulmarod
Differential Revision: D2668945
fb-gh-sync-id: c85acbf
Summary: public
Using clang's method resolution. This means that, in method calls, clang gives you a pointer to the declaration of the method.
In some cases though, clang doesn't find the right method. For example, when it finds a method in a category, we
need to make it into a method in the corresponding class, because that's how we treat categories in Infer. Moreover,
when it finds a method in a protocol, that is not useful for us, since the implementation will be in some class. Finally,
sometimes the call is on an object of type id, in which case clang doesn't know what is the correct declaration. In
those cases, we fall back to what we were doing before of approximating the method resolution. We also refactor
some of the code.
Reviewed By: akotulski
Differential Revision: D2679766
fb-gh-sync-id: b79bb85
Summary: public
Add support for translation and calling c++ static methods.
They can be called in two ways:
ClassName::method()
classInstance.method()
Both of them have the same meaning, but AST produced is different
Reviewed By: dulmarod
Differential Revision: D2636489
fb-gh-sync-id: 9294a3f
Summary: public
New qual_name exporting logic in facebook-clang-plugins handles anonymous
classes in much better way. This allows us to simplify name generation for
classes that don't rely on a type of the object (which could be wrong for
methods from superclasses).
Reviewed By: dulmarod
Differential Revision: D2663810
fb-gh-sync-id: 08146b8
Summary: public
The static and global variables used in blocks don't appear in the ast as captured.
We need them however to try and find retain cycles involving those variables.
This diff adds a way of collecting the static variables used in blocks and treat them
like we treat other captured variables to find retain cycles.
Reviewed By: ddino
Differential Revision: D2663727
fb-gh-sync-id: d5b44ec
Summary: public
Update clang plugin version that has following changes:
1. Don't dump DeclContext as a part of BlockDecl
2. Add location information to C++ constructor initializers
This diff is making infer compatible with these changes by
1. Making infer compile
2. Reading location information from c++ constructor initializers so we don't miss update to line number
Reviewed By: dulmarod
Differential Revision: D2575066
fb-gh-sync-id: 6dc594a
Summary: public
Adds incomplete translation of constructor bodies. Treat constructors as
methods with something 'extra'.
We still don't translate initializer lists, just pass the information to cTrans
where it's ignored
Reviewed By: dulmarod
Differential Revision: D2550214
fb-gh-sync-id: 102c13a
Summary: public
modules are better for namespacing.
How I made this diff:
1. moved list_* functions from utils.ml{,i} to iList.ml{,i}
2. shell commands:
grep '^val ' infer/src/backend/iList.mli | cut -f 2 -d ' ' | tr '\n' ' '
# gives a list of former list_ functions that IList implements, fed into the loops below:
LISTNAMES=" compare equal append combine exists filter flatten flatten_options find fold_left fold_left2 for_all for_all2 hd iter iter2 length fold_right map mem nth partition rev rev_append rev_map sort split stable_sort tl drop_first drop_last rev_with_acc remove_duplicates remove_irrelevant_duplicates merge_sorted_nodup intersect mem_assoc assoc map2 to_string"
# replace " list_*" function calls with IList.* ones
for i in $LISTNAMES; do find . -name '*.ml' -exec sed -i -e "s/ list_$i\b/ IList.$i/g" \{\} \; ; done
# replace (list_* functions with (IList.* ones
for i in $LISTNAMES; do find . -name '*.ml' -exec sed -i -e "s/(list_$i\b/(IList.$i/g" \{\} \; ; done
# ditto with [
for i in $LISTNAMES; do find . -name '*.ml' -exec sed -i -e "s/\[list_$i\b/[IList.$i/g" \{\} \; ; done
3. Then fix up the rest by hand. In particular, stuff that called Utils.list_*
explicitely, and stuff that used the "Fail" exception that has moved to
IList. (may revisit this in the future)
Reviewed By: jeremydubreil, cristianoc
Differential Revision: D2550241
fb-gh-sync-id: cd64b10
Summary: @public
This removes the old way of finding variable declarations to create sil variables and replaces it with
a a new way based on the map from pointers to declarations.
Basically, every variable dereference contains a pointer to the variable declaration, with that we can
build the corresponding sil variable.
Reviewed By: @akotulski
Differential Revision: D2536000
fb-gh-sync-id: dd29cf9
Summary: @public
Refactor exising code that handles __nonnull annotations.
Create extendable way to add extra stuff to be translated before
rest of statements get translated.
This will make handling of constructor initializer list simpler
Reviewed By: @dulmarod
Differential Revision: D2521659
fb-gh-sync-id: ba613e7
Summary: @public
Update version of clang plugin, it changes type
of CXXMethodDecl, all of the changes are to make frontend compile.
Reviewed By: @jvillard
Differential Revision: D2522117
fb-gh-sync-id: 970bdc8
Summary: @public remove `is_instance` function parameter that was used for
blocks only. Instead, pass context everywhere - it holds information that is
very relevant when defining block.
Reviewed By: @dulmarod
Differential Revision: D2521772
fb-gh-sync-id: 5fb53f9
Summary: @public
1. Add support for `this` keyword. It will allow to access fields/methods of the object from the method body.
2. Fix problem with method formals to add pointer to type of first parameter (which corresponds to `this`)
Reviewed By: @dulmarod
Differential Revision: D2484882
fb-gh-sync-id: c318619
Summary: @public
Get newest goodness from facebook-clang-plugins
that allows us to change type of type_ptr during deserialization
We are modifying clang_ast_types.ml that fcp/clang-ocaml expects to
exist - we provide our own implementations of:
t_ptr, pointer_to_type_ptr, type_ptr_to_pointer
Reviewed By: @dulmarod
Differential Revision: D2498623
Summary: @public
First diff to give better language information in the frontend.
This information is necessary to understand when 'self' is objc keyword,
when 'this' is C++ keyword and when they are not.
Reviewed By: @ddino, @dulmarod
Differential Revision: D2489252
Summary: @public
qual_type was the same as type_ptr, so it was removed.
This commit makes it compatible with facebook-clang-plugins
Commands ran:
codemod --extensions ml,mli 'qual_type' 'type_ptr'
codemod --extensions ml,mli 'qt' 'tp'
If there is any other popular name for qual_type, let me know
Reviewed By: @dulmarod
Differential Revision: D2498289
Summary:
This diff aims at removing the occurrences of the types in string form so that we can remove them
from the ast which will save space.
There is one occurrence left regarding attributes that will be handled later by Andrzej.
We build a function to create a string out of a function type used for name mangling.
Summary:
frontend and backend assume that Sil.Struct
doesn't have methods nor inheritance. In order to plug C++
classes we probably need them to be Sil.Class
Summary:
C function names depend only on their name (and their file is they are static, and their type if we are in C++)
This is more in sync with the actual semantics of C function names than the previous implementation.
Summary:
This is the second of 3 stack diffs to deal with replacing the parser of types.
This diff is about general changes to the frontend to make it cope with the change. There
are two main challenges:
1. We create pieces of ast in ast_expressions, such as getters and setters. For that we create
custom types.
2. We store types in cMethod_signature for parameters and return type of functions. This was
stored as strings, but that means losing the pointer information which is vital to get the
sil types.
So this diff consists mostly of dealing with these challenges. It change the signature of
cMethod_signature and update modules accordingly.
To deal with the custom types, we build methods in ast_expressions for creating those types,
with a custom type pointer, like "internal_typeint". At the beginning of the translation we save
all these custom types in the map from type pointers to sil types that we build as we compute the
types, so that they are available later.
Another custom type that we build is a type of classes or pointer of classes based on the current
class. I found a simple way to deal with it, giving it a pointer "class_name", and then we know
how to translate those. Something I tried is to save the declaration of the current class and pass
that declaration around, but somehow that lead to pref regression, so I removed it in favor of this
more lightweight version.
Summary:
Move proc_attributes to a separate module.
Field err_log, in common between proc desc and summary, can now be moved to ProcAttributes without creating cycles of dependencies.
Summary:
There's a lot of overlap between the representation of a proc desc and a spec summary. This diff moves all the data in common to the single record proc_attributes defined in Sil.
This gives a unified way of accessing most of the data carried by a procedure, whether it is contained in a proc desc or a spec. Also, it ensures that there is a single flow of information from proc desc to spec in the back-end, making sure that the information represented stays consistent.
Summary:
Use the map of pointers to find method declarations and build method signatures.
Remove the need for having an extra map for method signatures (and remove that map).
Summary:
Handle C++ method declarations and create cfgs for them.
Doesn't do:
Method calls (CXXMethodCall)
Using `this` expression in methods (including implicit ones)
Summary:
Refactor of creating method signatures. First step to use the map of pointers to find method declarations.
The idea is to have a function that creates a method signature from a declaration, later we can get the declaration from a pointer
and use this function to retrieve the method signature.
(authored by @dulmarod)
Summary:
The methods in objc can have the same name in the same class, but one be instance and the other class,
so that we need to take the instance flag into account when defining unique names for ObjC methods.
Summary:
This commit is the result of
`find infer/src -name '*.ml' -or -name '*.mli' -exec ocp-indent -i \{\} \;`
and
`INFER_CHECK_COPYRIGHT=1 InferPrint`
Summary:
In preparation for C++ methods, we need to have type with
class, method, mangled (for overloading?)
1. Change objc method to support it
2. Do some renames to be less confusing
Dulma Churchill
Josh Berdine
Andrzej Kotulski
Jules Villard
Sam Blackshear
Dino Distefano
Cristiano Calcagno
jrm