This is a starting point for supporting blocks and variable
declarations in the forest API. I'm not sure exactly how the
analyzer handles variable declarations, so we'll probably have
to iterate on that part.
Change-Id: I93aec818baec24f8b038f02c66699117070d6b0c
Reviewed-on: https://dart-review.googlesource.com/55683
Commit-Queue: Peter von der Ahé <ahe@google.com>
Reviewed-by: Kevin Millikin <kmillikin@google.com>
The behavioral difference is that named and optional arguments are filled in
with their default values in the `Invocation` object passed to `noSuchMethod`.
On the implementation side we make NSM forwarders concrete and fill in their
bodies in the CFE. The custom (and somewhat hacky) VM support is no longer
needed, and Dart2JS can benefit from this implementation as well.
According to discussion on #33031 we will be able to re-land this soon without
breaking Mockito.
Prior failures on precompiler bots are fixed in Patchset 2.
Change-Id: If1b7fe4cf6da5ef38f330e1ad226121bcfc958a1
Reviewed-on: https://dart-review.googlesource.com/54401
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
This reverts commit 7d5025e814.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> Fix incorrect handling of NSM forwarders and pull all logic into CFE.
>
> The original implementation was designed around a shared misunderstanding
> of optional parameter handling in the spec. (which was also ambiguous about type parameters).
>
> The correct behavior for optional/type parameters is to fill them in with their default values/bounds.
> This behavior can be implemented without any backend support, as is done in this CL.
>
> Change-Id: Ib81f17ead2d2920e755703e244db5afc328d0315
> Reviewed-on: https://dart-review.googlesource.com/52802
> Commit-Queue: Samir Jindel <sjindel@google.com>
> Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
TBR=dmitryas@google.com,sjindel@google.com
Change-Id: Ice6cd36cc62772e013bded83e0f589fe4b5e9d53
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/53400
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
The original implementation was designed around a shared misunderstanding
of optional parameter handling in the spec. (which was also ambiguous about type parameters).
The correct behavior for optional/type parameters is to fill them in with their default values/bounds.
This behavior can be implemented without any backend support, as is done in this CL.
Change-Id: Ib81f17ead2d2920e755703e244db5afc328d0315
Reviewed-on: https://dart-review.googlesource.com/52802
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
This CL updates fasta parsing of `for` statements
to detect additional errors and improve recovery.
The parser originally called parseType when parsing `for` statements
which committed the parser down a particular path
and limited the ability of the caller to gracefully recovery.
Now the parser calls computeType, which parses and caches
the type information, so that the caller has more opportunity
to recover gracefully.
Change-Id: I6296ffb1f75e77a87a7533bfca77dae18cfcf60d
Reviewed-on: https://dart-review.googlesource.com/46383
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Dan Rubel <danrubel@google.com>
When one of the parameter types needs to be type inferred, don't also
try to use ordinary method type inference for the return type; it is
still inferred as `void`.
Add a test to make sure this corner case works, as well as a similar
corner case for setters (which did not require fixing).
Fixes#31779.
Change-Id: Id443260a12e44f88d9dadbbf916c13be3cc303b9
Reviewed-on: https://dart-review.googlesource.com/37300
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Kevin Millikin <kmillikin@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Reland of https://dart-review.googlesource.com/c/sdk/+/29160
Adds a 'severity' field to diagnostic messages and replaces all
addWarning and addNit functions by a generic addProblem, which uses
the intrinsic severity of the message. Eventually, errors should
also be reported this way.
A special severity value maps into either warning or error for Dart 1
and Dart 2, respectively. Most Dart 1 warnings are in this category.
Fixes some 320 failures of DDK test expecting a compile-time error.
These were previously masked by a workaround in the DDC error handler
which has now been removed.
Closes https://github.com/dart-lang/sdk/issues/31286
Change-Id: Id3b3b7f1fc6a101639fc908c90f3ec7d304a7b4b
Reviewed-on: https://dart-review.googlesource.com/32580
Commit-Queue: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
Adds a 'severity' field to diagnostic messages and replaces all
addWarning and addNit functions by a generic addProblem, which uses
the intrinsic severity of the message. Eventually, errors should
also be reported this way.
A special severity value maps into either warning or error for Dart 1
and Dart 2, respectively. Most Dart 1 warnings are in this category.
Fixes some 320 failures of DDK test expecting a compile-time error.
These were previously masked by a workaround in the DDC error handler
which has now been removed.
Closes https://github.com/dart-lang/sdk/issues/31286
Change-Id: I6acea31b8cba7dec8b318e081d28f4eb4ebbf75c
Reviewed-on: https://dart-review.googlesource.com/29160
Commit-Queue: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Peter von der Ahé <ahe@google.com>
Before: Kernel static errors were represented by throwing a distinguished
error or else by calling a distinguished library const constructor.
Now: Kernel static errors are represented by InvalidExpression. To support
error reporting, InvalidExpression has an optional message and a file
offset. A back end can choose to signal these errors at any time; for
example, when deserializing the binary, or when compiling the procedure
containing the static error, or when the erroneous expression is evaluated
at run time.
InvalidStatement is removed because it can be encoded as ExpressionStatement
of InvalidExpression.
Future work:
* supporting static errors where an expression cannot appear in the AST
* allowing InvalidExpression to contain an Expression for error recovery
* adding a top-level list of static errors and warnings to the binary
Bug: https://github.com/dart-lang/sdk/issues/29840
Change-Id: Ifdfe9a76cee6cefed28061bf245be70531d2f413
Reviewed-on: https://dart-review.googlesource.com/31320
Commit-Queue: Kevin Millikin <kmillikin@google.com>
Reviewed-by: Dan Rubel <danrubel@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Report error when super is used as an expression outside
an initializer. Consolidated some error messages.
Change-Id: Iafaeeeff8a4b72f941925cefcbc832ba47f02a79
Reviewed-on: https://dart-review.googlesource.com/23360
Commit-Queue: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Peter von der Ahé <ahe@google.com>
Fixes#21938 (Front end does not warn on function calls on Object).
A small number of tests begin failing with this change--these tests
have been marked with issue #31533 for later triage.
Change-Id: I3a956410a6780772fe90098d8604fb10718504df
Reviewed-on: https://dart-review.googlesource.com/26045
Commit-Queue: Paul Berry <paulberry@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Previously, the front end recovered from an invalid assignment by
producing an "as" expression, e.g.:
int x;
String y;
x = y;
Would produce an "invalid assignment" error, as well as this kernel
code:
int x;
String y;
x = y as{TypeError} int;
The rationale was that the "as" check was guaranteed to fail, so this
code would produce a runtime error at the correct location. However,
there were two problems:
1. (Minor problem) the "as" doesn't actually fail if the RHS is null.
2. (Major problem) for type inference, the type of an assignment
expression is defined to be the type of the RHS. This means that if
the invalid assignment gets used for type inference, we generate
mal-typed kernel code, e.g.:
int x;
String y;
var z = (x = y);
Gets compiled to:
int x;
String y;
String z = (x = y as{TypeError} int);
This CL addresses both problems by changing the kernel representation
so that it evaluates the RHS and then throws an exception. Since a
"throw" expression has type Bottom, the kernel representation is
guaranteed to be properly typed. This also ensures that an exception
gets thrown if the RHS is null. Finally, as a side bonus, it makes
the error-recovered kernel code more similar to the kernel code we
generate in other error recovery scenarios.
Change-Id: Iac74e0c726ce029ac0560d271413e85c15bfec5c
Reviewed-on: https://dart-review.googlesource.com/24140
Reviewed-by: Kevin Millikin <kmillikin@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
We change the type of FileUriNode.fileUri from String to Uri, which in principle
doesn't change the binary format. However, we did notice that LibraryParts
weren't serialized as specified in binary.md, so we also fixed that.
Since fileUris are stored as strings in a separate table, Uri.parse is only called
once per unique URI.
Fasta only uses relativizeUri when printing diagnostics, and URIs stored in
expectation files (golden files) are relativized using String.replaceAll.
Change-Id: Ib2dc1b80c03a0cdaf84e48b8b3ba73b16bdf8a40
Reviewed-on: https://dart-review.googlesource.com/25421
Commit-Queue: Peter von der Ahé <ahe@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
This reverts commit 8e4b0bda23.
Reason for revert: Failures on most kernel bots
Original change's description:
> Route all messages through Loader.
>
> This ensures that all messages are passed to instrumentation.
>
> Issues addressed in this CL:
>
> * When I added addCompileTimeError, I forgot to remove addError.
>
> * All messages now all arrive in a single location (Loader). SourceLoader adds instrumentation by overriding recordMessage.
>
> * As I changed the type inferrer to use addCompileTimeError, I broke DDC. This is because the front_end API (generateKernelInternal in kernel_generator_impl.dart) returns null if there are any errors reported via addCompileTimeError (and this didn't happen with addError, that shouldn't have been there anyways).
>
> * Due to the previous problem, I changed generateKernelInternal to ignore errors, but then I started getting missing compile-time errors. This turned out to be due to the the silent parameter used during outline- and diet-parsing.
>
> * I've removed all the "silent" parameters. This didn't work reliably and have been confusing Brian, Dan, and me several times when making parser changes. Instead we detect duplicated messages and avoid reporting them more than once.
>
> * Types in error messages got names that where using a global object (globalDebuggingNames in pkg/kernel/lib/text/ast_to_text.dart). This meant that the #lib prefix would vary depending on how many tests were run which affected the serialized error message in pkg/front_end/testcases/invalid_assignment.dart.strong.expect.
>
> Change-Id: I3d89372d6593a6e7e50cce733f61eedb881e15ed
> Reviewed-on: https://dart-review.googlesource.com/24481
> Commit-Queue: Peter von der Ahé <ahe@google.com>
> Reviewed-by: Paul Berry <paulberry@google.com>
> Reviewed-by: Kevin Millikin <kmillikin@google.com>
TBR=paulberry@google.com,ahe@google.com,kmillikin@google.com
Change-Id: I9f7b345a8ff040fc7aa73c5cb605190e47fd284b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/25660
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
This ensures that all messages are passed to instrumentation.
Issues addressed in this CL:
* When I added addCompileTimeError, I forgot to remove addError.
* All messages now all arrive in a single location (Loader). SourceLoader adds instrumentation by overriding recordMessage.
* As I changed the type inferrer to use addCompileTimeError, I broke DDC. This is because the front_end API (generateKernelInternal in kernel_generator_impl.dart) returns null if there are any errors reported via addCompileTimeError (and this didn't happen with addError, that shouldn't have been there anyways).
* Due to the previous problem, I changed generateKernelInternal to ignore errors, but then I started getting missing compile-time errors. This turned out to be due to the the silent parameter used during outline- and diet-parsing.
* I've removed all the "silent" parameters. This didn't work reliably and have been confusing Brian, Dan, and me several times when making parser changes. Instead we detect duplicated messages and avoid reporting them more than once.
* Types in error messages got names that where using a global object (globalDebuggingNames in pkg/kernel/lib/text/ast_to_text.dart). This meant that the #lib prefix would vary depending on how many tests were run which affected the serialized error message in pkg/front_end/testcases/invalid_assignment.dart.strong.expect.
Change-Id: I3d89372d6593a6e7e50cce733f61eedb881e15ed
Reviewed-on: https://dart-review.googlesource.com/24481
Commit-Queue: Peter von der Ahé <ahe@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
Reviewed-by: Kevin Millikin <kmillikin@google.com>
Previously, a ShadowSyntheticExpression was its own kind of Expression
unrelated to any of the Expression types defined in the kernel. It
responded to visit requests by forwarding the visit request to the
desugared expression. This had the advantage that for serialization
purposes, ShadowSyntheticExpressions would automatically disappear.
But it had the disadvantage that if a ShadowSyntheticExpression ever
needed to be replaced with another node (e.g. because an implicit
downcast was needed), the _ChildReplacer would get confused by the
visitor forwarding and fail to replace the node properly.
This CL fixes the problem by changing ShadowSyntheticExpression to a
Let node of the form `let _ = null in desugaredExpression`. Since
this is a genuine kernel expression, it no longer needs special
visiting semantics, and node replacement works properly.
In most circumstances, we replace the ShadowSyntheticExpression with
its desugared equivalent during type inference, so the final
serialized kernel representation is unchanged. However, in a few rare
circumstances involving error recovery, a ShadowSyntheticExpression
remains in the tree. Semantically this shouldn't be a problem, since
the behavior of `let _ = null in x` is the same as the behavior of
`x`. Nonetheless, I hope to get rid of these rare circumstances in
follow up CLs.
Change-Id: Iacf8c0028c424ac9ef98ef8302680e289bf7a017
Reviewed-on: https://dart-review.googlesource.com/21571
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Dart2JS and the VM prefer for Enum names to be stored inline in the Enum
object to avoid having the static array of all Enum values. A base class
for Enums is provided to avoid repeating the common fields and accessors
between Enum definitions.
Bug:
Change-Id: I783f863015b45f13317fda06e627d14844fe2ddf
Reviewed-on: https://dart-review.googlesource.com/16526
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Peter von der Ahé <ahe@google.com>
For compound assignments, we need to look up the "combiner" operation
in the type of the getter (not the setter), since the receiver of the
combiner operation is the value that was read. This is necessary for
soundness.
Change-Id: I02e0e93310b6b6b94d4a6253d4cf2fc1d3c69cd5
Reviewed-on: https://dart-review.googlesource.com/16607
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
Kevin Millikin