This is a port of CL 332553 to go/types. The "expr" variable is renamed to
"e" in Checker.indexExpr to be consistent with types2.
Change-Id: I7905bebf2e8dab47256361362b16becf7596cf95
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This is a port of CL 332411 to go/types. methodset_test.go is similarly
updated.
Change-Id: I332b1837a954acc9d3b7e0e2ad2bec3425f088f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/335109
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This is a port of CL 332093 to go/types. A missing comment is added to
named.go, and some TODOs were added to converge on the TypeParam API.
Change-Id: I781a1d0d3fc6c11bb323123e954c106094d998ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/335040
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This is a port of CL 332092 to go/types.
Change-Id: I9971c49570424368575108832eac0cd978eb3fe6
Reviewed-on: https://go-review.googlesource.com/c/go/+/335039
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This is a port of CL 332091 to go/types. Notably types.Signature is
missing APIs for RParams. This is left for a later CL, when the API is
finalized.
Change-Id: I70b664d656e8c1e32958a75e1d13eab5f3281bf9
Reviewed-on: https://go-review.googlesource.com/c/go/+/335038
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This is a port of CL 332090 to go/types.
Change-Id: Idc480374f5efe0e7f34f76f37ffd02a3aef59c67
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This is a port of CL 332089 to go/types.
Change-Id: I39321eaee184c8204bd255b7770a0770ecb25fda
Reviewed-on: https://go-review.googlesource.com/c/go/+/335036
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This is a straightforward port of CL 332011 to go/types.
Change-Id: I682791886c8496c52094f3688e36934afbd7a241
Reviewed-on: https://go-review.googlesource.com/c/go/+/335035
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This is a port of CL 331690 to go/types. It diverges from that CL due to
the different representation of Fields in the AST.
Change-Id: I3ae9ac3a0172dc58ac748f28772d87b00db0732a
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Type parameters are now always enabled. Users should guard against type
checking generic code by using the types.Config.GoVersion field.
This cleans up some differences with types2.
Change-Id: Ie3e35a549e456a90a10d6a7e158ff58653cc1394
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This is a straightforward port of CL 331517 to go/types.
Change-Id: Id00761fd5dffb4d09e19f086d18ddc20f11528d0
Reviewed-on: https://go-review.googlesource.com/c/go/+/335032
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This is a straightforward port of CL 331515 to go/types.
Change-Id: I05c687e7dd7a64a8a7815c4483ff7fbb06b37627
Reviewed-on: https://go-review.googlesource.com/c/go/+/335031
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This is a straightforward port of CL 331514 to go/types, with minor
adjustments for the different position API.
Change-Id: I714b3f1cd5a0e8d249912bb589d456885a87e167
Reviewed-on: https://go-review.googlesource.com/c/go/+/335030
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This is a straightforward port of CL 331512 to go/types. API usage in
methodset.go was also updated.
Change-Id: I6701265c9d2ae40eb9aa0ea5f00c98ce3516edab
Reviewed-on: https://go-review.googlesource.com/c/go/+/335009
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These wrappers and aliases were necessary when we had different versions
of the API depending on the typeparams build constraint, but now they're
just boilerplate. Remove them.
Notably the documentation for types.Info is restored.
Change-Id: I5363d1d5df47649c2641c03328dfba45b1456278
Reviewed-on: https://go-review.googlesource.com/c/go/+/334895
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This is a port of CL 329309 to go/types, with minor updates for API
differences and to handle methodset.go, which doesn't exist in types2.
A couple pre-existing comments were adjusted to match types2.
Change-Id: I3fd556e1326013a694ff5edb8518ca24c27bd10b
Reviewed-on: https://go-review.googlesource.com/c/go/+/334894
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This is a straightforward port of CL 323569 to go/types. It is
line-for-line identical, except where names are unexported to preserve
the current go/types API.
Change-Id: I4c78211bff90f982ca2e90ed224946716118ee31
Reviewed-on: https://go-review.googlesource.com/c/go/+/334893
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When comparing a value whose type is a type parameter to an interface,
we need to convert that type parameter to an interface using the dictionary
entries.
Change-Id: I409c9e36e376fe4ef8163407d0fd4e84496d5b65
Reviewed-on: https://go-review.googlesource.com/c/go/+/334150
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- set correct position for closure capture variable in (*irgen).use()
(issue20250.go) Also, evaluate rhs, lhs in that order in assignment
statements to match noder1 (affects ordering of closure variables).
- make sure to set Assign flag properly in (*irgen).forStmt() for range
variables which are map accesses (issue9691.go)
- make sure CheckSize() is call on the base type for top-level types
converted by (*irgen).typ() that are pointer types (issue20174.go and
issue37837.go)
- deal with parentheses properly in validation function
(*irgen).validate() (issue17270.go)
- avoid HasNil call on type TTYPEPARAM - types2 typechecker will have
already checked validity of the typeparam having nil value (new test
issue39755.go)
Change-Id: Ie68004d964698aea047e19e7dcd79b297e9d47ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/334733
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Rather than removing "any" from the universe scope, keep it predeclared
but provide a better error message.
While at it, remove some unnecessary type assertions.
Change-Id: I10603274282ea6afc107f703ab194f32bd334dd1
Reviewed-on: https://go-review.googlesource.com/c/go/+/334911
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When instantiating a generic type or function with multiple type
arguments, we need to represent an index expression with multiple
indexes in the AST. Previous to this CL this was done with a new
ast.ListExpr node, which allowed packing multiple expressions into a
single ast.Expr. This compositional pattern can be both inefficient and
cumbersome to work with, and introduces a new node type that only exists
to augment the meaning of an existing node type.
By comparison, other specializations of syntax are given distinct nodes
in go/ast, for example variations of switch or for statements, so the
use of ListExpr was also (arguably) inconsistent.
This CL removes ListExpr, and instead adds a MultiIndexExpr node, which
is exactly like IndexExpr but allows for multiple index arguments. This
requires special handling for this new node type, but a new wrapper in
the typeparams helper package largely mitigates this special handling.
Change-Id: I65eb29c025c599bae37501716284dc7eb953b2ad
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The test currently fails if the default -G level is changed from 0 to
3, and it only makes sense to run in -G=0 mode anyway. So might as
well hard code it that way.
Change-Id: I026d25d567157df5d3f2ca3c68d31d75d9c74532
Reviewed-on: https://go-review.googlesource.com/c/go/+/334910
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For #47127.
Change-Id: Ie979ff56ae7c2dd0e5ce0ff39588f98ae68b5ee9
Reviewed-on: https://go-review.googlesource.com/c/go/+/334151
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Change-Id: If25ceb2aa403b94608760be331faa2aff11c47cc
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There is no (obvious) way to test this at the moment because we
don't permit such constraint interfaces as ordinary types.
Change-Id: Ieeec023ed82a2c71ed50d111f26916aba4a59099
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Generic receiver types may be defined such that an instantiated
receiver ends up being a pointer type. Disallow them as we do
for non-generic receivers.
Change-Id: I6612a52615a2999375c35aa1d69ab42f37d9f55d
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Change-Id: Iaf33c15128af911b6101df9885cb8b5a8495b942
Reviewed-on: https://go-review.googlesource.com/c/go/+/333729
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Change-Id: I45189468553e83390fd2640b5708c60a7852fbb5
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For #47115.
Change-Id: Ib9c8652c0346029369735ccf7ee9098ab1ae7fd3
Reviewed-on: https://go-review.googlesource.com/c/go/+/333712
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For #43671
Change-Id: I7db4b3886fab44ec0de7c0935e0ab21c26e3335c
Reviewed-on: https://go-review.googlesource.com/c/go/+/333709
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Call SetPos() in g.expr() so it is available for any new nodes.
Print out the actual type for a composite literal in exprFmt() if
available, else use Ntype if available. Seems generally useful, since
the type name is always more useful than just 'composite literal'.
Fixes a bunch of cases that are excluded in run.go for -G=3.
Change-Id: I40b9bba88027ea4f36d419e3989e7f14891bea04
Reviewed-on: https://go-review.googlesource.com/c/go/+/334609
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Export the types.Config.GoVersion field, so that users can specify a
language compatibility version for go/types to enforce.
Updates #46648
Change-Id: I9e00122925faf0006cfb08c3f2d022619d5d54d5
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Records whether a derived type is needed at run-time as well as
instantiated functions that rely on derived types (and thus need
sub-dictionaries).
Change-Id: I2f2036976bfce5b3b4372fba88b4116dafa7e6b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/334349
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There's no point in reading the object dictionary for a stub
declaration. Only the package that contains the full object definition
will contain an object dictionary.
Change-Id: I458b77d20745105bf46190ef552312bdb5ca4d06
Reviewed-on: https://go-review.googlesource.com/c/go/+/334409
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No other code changes except for an additional comment.
Change-Id: Ica3cea446c6c88f4f81a86d77b289a0b54b1e76f
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This change concentrates the creation is lazily instantiated types
in one place (InstantiateLazy). This should also make it easier to
replace the implementation of lazily instantiated types (e.g. getting
rid of instance types).
Change-Id: I452c463219b466ce79f227c44fb67b79d428842a
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No code changes besides moving the two functions and updating a
couple of file comments.
Change-Id: I13a6a78b6e8c132c20c7f81a329f31d5edab0453
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Allow Checker.Instantiate to work with a nil *Checker receiver
(for now). This opens the door to passing in a *Checker at all
times.
Also, added a verify flag to Instantiate, InstantiateLazy, and
instance, to be able to control if constraint satisfaction should
be checked or not.
Removed types2.Instantiate.
For #47103.
Change-Id: Ie00ce41b3e50a0fc4341e013922e5f874276d282
Reviewed-on: https://go-review.googlesource.com/c/go/+/333569
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In the case that a generic function/method f does a method call on a
type param allowed by its bound, an instantiation of f may do a direct
method call of a concrete type or a method call defined on a generic
type, depending on whether the passed type in a concrete type or an
instantiated type with the appropriate method defined. See the test case
boundmethod.go added to this change.
In order to keep the dictionary format the same for all instantiations
of a generic function/method, I decided to have an optional
sub-dictionary entry for "bounds" calls. At the point that we are
creating the actual dictionary, we can then fill in the needed
sub-dictionary, if the type arg is an instantiated type, or a zeroed
dictionary entry, if type arg is not instantiated and the method will be
on a concrete type.
In order to implement this, I now fill in n.Selection for "bounds"
method calls in generic functions as well. Also, I need to calculate
n.Selection correctly during import for the case where it is now set -
method calls on generic types, and bounds calls on typeparams.
With this change, the dictionaries/sub-dictionaries are correct for
absdiff.go. The new test boundmethod.go illustrates the case where the
bound sub-dict entry is not used for a dictionary for stringify[myint],
but is used for a dictionary for stringify[StringInt[myint]].
Change-Id: Ie2bcb971b7019a9f1da68c97eb03da2333327457
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This CL pushes the typecheck.Expr calls further down to the IR
construction points. It turns out we don't really care about
typecheck.AssignExpr, because it's only used to distinguish whether
ir.BlankNode is allowed. We can avoid that issue by just skipping the
call to typecheck.Expr for blank nodes.
Similarly, for typecheck.Callee, only two details matter: (1) don't
report errors for builtin functions (which aren't allowed outside of
callee contexts); and (2) method-value selector expressions need to
have Op ODOTMETH/ODOTINTER rather than OMETHVALUE. The first can be
handled by simply skipping typecheck on Names (as with ir.BlankNode,
we don't need to typecheck these). The second currently requires
adding a 'callee bool' parameter to disambiguate the context.
The other option would be for exprCall to reset the fun's Op from
OMETHVALUE to OXDOT and let typecheck handle it a second time. But I
anticipate needing to add extra logic in the exprSelector case which
would be harder to undo, so this seems somewhat better.
Change-Id: I1a8dfb6af04265ab466fd7f4cb6ee8b479e92282
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CL 332469 changed the unified IR reader to incrementally typecheck
each statement as they're read/constructed. This CL goes further to
incrementally typecheck each expression.
While here, this CL reorganizes a few things to make this go more
smoothly. In particular, it renames expr to expr0 and adds a new expr
wrapper that applies typecheck.Expr; gets rid of exprTypeSwitchguard
by moving that logic into switchStmt; and splits exprConvert out from
exprCall, which simplifies the logic for typechecking the calleee
expression somewhat.
Change-Id: I6289de9388dc94a947971f4b7213aafeb2faa5dc
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This CL reuses the symabi wrapper information to warn when a function
is defined both in Go (i.e., has a function declaration with a body)
and in assembly (i.e., has a TEXT instruction).
This will eventually produce a linker error anyway, but we can provide
a slightly nicer error message earlier.
Change-Id: Ia107f813343c0b10f4cd1013e7c72e67149ee52e
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There's nothing GOARCH-specific about ABI wrappers, so allow enabling
them on all architectures.
For unified IR, I want to have a testing mode where we add dictionary
parameters even to non-generic functions, as a way to help stress test
that they're handled correctly. This requires callers to know to
supply the appropriate dictionary arguments when calling them. Calls
generated by the Go compiler know to do this, but calls written in
assembly won't.
Reusing the regabi wrappers is a convenient choke-point for inserting
dictionary arguments for assembly calls.
Change-Id: Ic2c06b7626730289c5405829b61653d1daec430b
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When types2.Instantiate is called externally, no *Checker is provided and
substitution doesn't have access to Checker.typMap; and instantiation of
recursive generic types leads to an infinite recursion in subst.
There was a local subster.cache but it was only set and never used.
Replaced subster.cache with subster.typMap, which is set to the global
Checker.typMap if available, and set to a local map otherwise. This
prevents such infinite recursions. Added a simple test.
More generally, because we don't have a global type map for external
instantiations, instantiating the same type twice, independently but
with the same type arguments, will result in two different types. This
is not correct. We need to provide some form of context for external
instantiations (which means the importers). This is a separate but
related issue which is not yet addressed (filed #47103).
Change-Id: I541556c677db54f7396fd0c88c7467894dfcf2e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/333383
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Rather than using a local types' position information, use the type
name's scope numbers to uniquely identify the type from others with
the same name.
We use scope numbers rather than indices (with number-1 == index)
to preserve the invariant that the zero value for a scope is a ready
to use empty scope.
Using scope numbers turned out to be fairly simple after all and
provides a reasonably stable identification which will make debugging
simpler. A scope number series may be a bit longer than a unique ID for
each type name but local types should be reasonably rare.
Also did a minor cleanup in universe.go to ensure Named.orig is set up
correctly (there's still an open TODO but with a work-around).
Change-Id: I73935fa9bd960809fd5c95fe8b8a535c313cfc8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/333192
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
types2 currently ignores pragmas, so it does not catch a conversion
error when converting a pointer to a type which is NOT marked notinheap
to a pointer to a convertible type, but which is marked notinheap.
So, we specifically check for this error in transformConv() and report
it during noder2.
Change-Id: I6e9c9ee29f53fa5e490c1ac8306e2191db59eeb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/333369
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Conflicts:
- src/runtime/runtime2.go
On master, CL 317191 fixed the mentions of gc/reflect.go in comments
to reflectdata/reflect.go; but on dev.typeparams, CL 325921 fixed
that the same comment to reflect that deferstruct actually ended up
in ssagen/ssa.go.
Merge List:
+ 2021-07-08 296ddf2a93 net: filter bad names from Lookup functions instead of hard failing
+ 2021-07-08 ce76298ee7 Update oudated comment
+ 2021-07-08 2ca44fe221 doc/go1.17: linkify time.UnixMilli and time.UnixMicro
+ 2021-07-07 5c59e11f5e cmd/compile: remove special-casing of blank in types.sconv{,2}
+ 2021-07-07 b003a8b1ae cmd/compile: optimize types.sconv
+ 2021-07-07 11f5df2d67 cmd/compile: extract pkgqual from symfmt
+ 2021-07-07 991fd381d5 cmd/go: don't lock .mod and .sum files for read in overlay
+ 2021-07-07 186a3bb4b0 cmd/go/internal/modfetch/codehost: skip hg tests if no hg binary is present
+ 2021-07-07 00c00558e1 cmd/go/internal/modload: remove unused functions
+ 2021-07-07 f264879f74 cmd/go/internal/modload: fix an apparent typo in the AutoRoot comment
+ 2021-07-07 c96833e5ba doc: remove stale comment about arm64 port
Change-Id: I849046b6d8f7421f60323549f3f763ef418bf9e7
This CL cleans a few minor nits with the ABI utils tests that are now
necessary because of cleanups that happened on master:
1. Initialize types.LocalPkg; this needs to be set for selector names
to be handled correctly.
2. In TestABIUtilsInterfaces, switch to using an exported identifier,
so it doesn't need to be package qualified.
3. While here, change the method result type from "untyped string" to
just "string". Constants are the only declared object that can ever
have an untyped type.
Change-Id: Iabed46594361a516317a1c2d20c3d59bdb519844
Reviewed-on: https://go-review.googlesource.com/c/go/+/333189
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
1.go, 12.go: similar to calculating type sizes, we delay computing
instantiations during import until we get up to a top-level type, in
order to make sure recursive types are complete. But we should always
delay calculating sizes when we delay instantiating types, since
otherwise we may try to calculate the size of an incomplete type. So,
needed to add Defer/ResumeCheckSize in (*importReader).typ where we also
defer instantiations. (iimport.go)
2.go: when doing type substition, we have to handle named, parameterized
basic types i.e. the type has a type parameter even though the
underlying type is a basic type that doesn't depend on the parameter.
(subr.go)
3.go: for go 1.18, we allow arbitrary types in interfaces. We had
already allowed union types and tilde types, but didn't allow regular
non-interface types in Go 1.17 for compatibility. Just skip an error
in the case of 1.18. (size.go)
5.go: types2 and types1 differ in how they print out interfaces. types1
puts a space between "interface" and "{", types2 does not. So, since
some typenames come from types2 and some from types1, we need to remove
the space when printing out type arguments. (iimport.go/subr.go)
9.go: in subst.node(), we were missing the KeyExpr case where a node has
no type. The assertion is just there, to make sure we understand all the
cases where there is no type to translate. We could just remove the
whole error check. (stencil.go)
13.go: in subst.node(), missed handling the case where a method
expression is immediate called (which of course, is quite unusual, since
then there's no real reason to have used the method expression syntax in
that case). Just needed to add ir.OMETHEXPR in the OCALL switch
statement. (stencil.go)
Change-Id: I202cbe9541dfafe740e3b84b44982d6181738ea0
Reviewed-on: https://go-review.googlesource.com/c/go/+/333165
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Instead of hard failing on a single bad record, filter the bad records
and return anything valid. This only applies to the methods which can
return multiple records, LookupMX, LookupNS, LookupSRV, and LookupAddr.
When bad results are filtered out, also return an error, indicating
that this filtering has happened.
Updates #46241Fixes#46979
Change-Id: I6493e0002beaf89f5a9795333a93605abd30d171
Reviewed-on: https://go-review.googlesource.com/c/go/+/332549
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
