Before this change, many kinds of error would cause the loader to stop.
making it brittle when analyzing large codebases, as in "godoc -analysis".
This change moves operations that used to occur during
configuration---(*build.Context).Import, loading, and parsing of
initial packages---into the Load call, and ensures that all failures
during Loading are reported at the end so that the maximum amount of
progress is made.
Also: redesign the tests and add many new cases.
Change-Id: Ia8cd99416af7c5d4a5fe133908adfa83676d401f
Reviewed-on: https://go-review.googlesource.com/3626
Reviewed-by: Robert Griesemer <gri@golang.org>
- use import path not file path in go/buildutil.FakeContext OpenFile;
- use regexp to compare error messages in TestErrors, because
they contain windows file paths;
- use OS file path (not unix path), when checking move results
in TestMoves.
Change-Id: Ib62d344acb551fb612d8a0773ae1ab5f18341294
Reviewed-on: https://go-review.googlesource.com/3171
Reviewed-by: Alan Donovan <adonovan@google.com>
And log its value in godoc -analysis.
Related to issue 8968
Change-Id: I96a96922a3fa5c434c69e0faff1cc8ec4686b6f2
Reviewed-on: https://go-review.googlesource.com/3154
Reviewed-by: Robert Griesemer <gri@golang.org>
Details:
- rename (*Program).TypesWithMethodSets() to RuntimeTypes()
- delete (*Package).TypesWithMethodSets() method and simplify
- move code to methods.go
- update test to use
1-2% improvement in space and time (though I barely trust this data
because the GC at tip is in such terrible state).
Change-Id: I38eab78b11e0ad0ff16e0530e775b6ff6a2ab246
Reviewed-on: https://go-review.googlesource.com/3148
Reviewed-by: Robert Griesemer <gri@golang.org>
...to avoid namespace conflicts.
Also make its name "main", since it defines func main().
And fix 2 typos.
Change-Id: I7cf7894d6bed134907b3d2742255e5a82426071b
Reviewed-on: https://go-review.googlesource.com/3150
Reviewed-by: Robert Griesemer <gri@golang.org>
This refactoring of the tests of go/loader and refactor/rename made it
possible to write some loader tests I wanted, but the new tests reveal
bugs so they're commented out for now. I will fix them in a follow-up.
Change-Id: Iae3a20681a0a0791076debd4b82bb5ed74b0c577
Reviewed-on: https://go-review.googlesource.com/2825
Reviewed-by: Robert Griesemer <gri@golang.org>
See loader.go comments for orientation.
This is what happens when you use start using Dmitry's new trace tool. :)
Tests:
- added test of cycles
- load/parse/typecheck of 'godoc' is ~2.5x faster
- race detector finds no errors.
Change-Id: Icb5712c7825002342baf471b216252cecd9149d6
Reviewed-on: https://go-review.googlesource.com/1582
Reviewed-by: Robert Griesemer <gri@golang.org>
PackageCreated is a hook called when a types.Package
is created but before it has been populated.
The package's import Path() and Scope() are defined,
but not its Name() since no package declaration has
been seen yet.
Clients may use this to insert synthetic items into
the package scope, for example.
Change-Id: I210a0c4c766f03f715f03f26d5cd765f15f56e04
Reviewed-on: https://go-review.googlesource.com/2138
Reviewed-by: Alan Donovan <adonovan@google.com>
Classic Go pitfall: "defer" in a loop does not do what you might expect.
+ test case
Fixes issue 9570
Fixes issue 9569
Change-Id: Iec05420872ef71190083a7192f76c92f54f4a2a1
Reviewed-on: https://go-review.googlesource.com/2655
Reviewed-by: Robert Griesemer <gri@golang.org>
The parser was assuming it would find <body> or </head>.
If the entire response is just <meta> tags, it finds EOF and
treats that as an error. It's not.
This is the same change as in https://golang.org/cl/68520044.
Fixes#9556.
Change-Id: If51ed36e7364c15788311039caf8323eb5fe9a6c
Reviewed-on: https://go-review.googlesource.com/2650
Reviewed-by: Minux Ma <minux@golang.org>
Also: Better position for error messages related to wrong use of ... .
Fixes#9473.
Change-Id: I90565f51a42897b7292f651a84a23611a5d8f359
Reviewed-on: https://go-review.googlesource.com/2390
Reviewed-by: Alan Donovan <adonovan@google.com>
It is sometimes useful for API clients to be able to disable the unused
import check, although for good reason this should not be exposed as part of
a user-facing interface. There are at least two use cases that I am aware of:
1) It allows for automated test case reduction tools such as delta or C-Reduce
to be more easily applied to type checker input. Disabling the check
makes it possible for the tool to identify and remove code that depends
on imported packages without any specific knowledge of Go, as the import
need not be removed simultaneously with the code.
2) Interactive tools (such as REPLs) that may have previously received a
list of imports and subsequently receive a line of code that may use any
number of these imports. It is simpler for such tools to import all the
packages in its list than to try to identify the correct set of imports.
Change-Id: I00091a4e5c8e1bd664efd82a636f255eaaa5a2db
Reviewed-on: https://go-review.googlesource.com/2136
Reviewed-by: Robert Griesemer <gri@golang.org>
The new interface makes the functions more useful by allowing clients to
check the various properties that TypeAndValue provides.
Change-Id: I8b41a27316081bea24a18ffe6fa1812e809d6f67
Reviewed-on: https://go-review.googlesource.com/2134
Reviewed-by: Robert Griesemer <gri@golang.org>
+ Tests:
Extend function name uniqueness check to exported wrappers.
Check that expected synthetic functions are created, reachable, and not duplicated.
Change-Id: I0e87ebb2712e33e1f49da3fa9a9dde0085bf3850
Reviewed-on: https://go-review.googlesource.com/2013
Reviewed-by: Robert Griesemer <gri@golang.org>
+ test
Change-Id: Ie37835577ffcdd764cf6a0b611e02f04386755cf
Reviewed-on: https://go-review.googlesource.com/1580
Reviewed-by: Robert Griesemer <gri@golang.org>
...like we do for "runtime" functions, so that they fail informatively
if executed. They all need intrinsics, but only some are yet defined.
Also:
- added test for issue 9462
- "BUG" in test output is now a failure in all tests (not just $GOROOT tests)
- added intrinsic for reflect.SliceOf
- show dynamic type of panic value
Fixes issue 9462
Change-Id: I3a504c7faeed81e922fedc7dd59222717f3a7e95
Reviewed-on: https://go-review.googlesource.com/2145
Reviewed-by: Robert Griesemer <gri@golang.org>
Fixes various problems reported by go vet.
Change-Id: I12a6fdba8f911b21805d8e42903f8f6a5033790a
Reviewed-on: https://go-review.googlesource.com/2163
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
"static" ignores dynamic calls altogether.
"cha" uses Class Hierarchy Analysis, which assumes that a
dynamic call may dispatch to any func or method that satisfies
the type.
Both these algorithms can work on partial programs,
e.g. libraries without a main function or tests.
(This feature was requested after my talk last night.)
+ Tests.
LGTM=sameer
R=sameer, minux
CC=golang-codereviews, gri
https://golang.org/cl/176780043
Also use type assertions in a more defensive
way (check for != nil rather than ok).
LGTM=dsymonds, adonovan
R=adonovan, dsymonds
CC=golang-codereviews
https://golang.org/cl/169480043
This is an algorithm for callgraph construction that is faster
but much less precise than pointer analysis.
(I evaluated this for the Go Oracle last year but shelved it,
but it's a natural fit for the work Brian is doing on
automatic program minimization.)
LGTM=sameer
R=gri, crawshaw, sameer
CC=bwkster, golang-codereviews
https://golang.org/cl/124690043
Rewrite performed with this command:
sed -i '' 's_code.google.com/p/go\._golang.org/x/_g' \
$(grep -lr 'code.google.com/p/go.' *)
LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/170920043
See regression test for explanation.
I audited the code for similar issues and found none.
Many thanks to Daniel Morsing for providing a small
reproducible test case, a rarity for PTA bugs!
Fixesgolang/go#9002
LGTM=crawshaw
R=crawshaw
CC=daniel.morsing, golang-codereviews
https://golang.org/cl/163350043
Also removes a potential race condition regarding the
used flag of Var objects when type-checking packages
concurrently.
Implementation: Rather than marking all used dot-imported
objects and then deduce which corresponding package was used,
now we consider all dot-imported packages as unused and remove
each package from the unused packages map as objects are used.
Now only objects that can be marked as used have a used field
(variables, labels, and packages).
As a result, the code became cleaner and simpler.
Fixesgolang/go#8969.
LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/163740043
The previous logic would descend into (e.g.) .git repositories
and vendored packages with "_"-prefixed names.
Fixesgolang/go#8907
LGTM=gri
R=gri
CC=golang-codereviews, shurcool
https://golang.org/cl/157800043
The type-checker depended on (token.Pos) position information of
the presented files to determine source order. That information
is determined by the parse order of the files rather than the
order in which the files are presented to the type-checker.
Introduced an order number strictly determined by the file
order as presented to the type-checker and the AST structure
of each file; thus providing source order information even in
the absence of (token.Pos) position information.
Added test case (provided by adonovan).
LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://golang.org/cl/151160043
Alan Donovan
Robert Griesemer
Alex Brainman
Peter Collingbourne
Dmitri Shuralyov
Emil Hessman
David Symonds
Andrew Gerrand