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all: implement wasmimport directive

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Go programs can now use the //go:wasmimport module_name function_name
directive to import functions from the WebAssembly runtime.

For now, the directive is restricted to the runtime and syscall/js
packages.

* Derived from CL 350737
* Original work modified to work with changes to the IR conversion code.
* Modification of CL 350737 changes to fully exist in Unified IR path (emp)
* Original work modified to work with changes to the ABI configuration code.
* Fixes #38248

Co-authored-by: Vedant Roy <vroy101@gmail.com>
Co-authored-by: Richard Musiol <mail@richard-musiol.de>
Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Change-Id: I740719735d91c306ac718a435a78e1ee9686bc16
Reviewed-on: https://go-review.googlesource.com/c/go/+/463018
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
Reviewed-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>
This commit is contained in:
Evan Phoenix 2023-01-22 15:30:59 -08:00 • committed by Gopher Robot
parent af9f21289f
commit 02411bcd7c
29 changed files with 585 additions and 145 deletions
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10
src/cmd/compile/internal/ir/func.go
View file

@ -133,6 +133,16 @@ type Func struct {
// For wrapper functions, WrappedFunc point to the original Func.
// Currently only used for go/defer wrappers.
WrappedFunc *Func
// WasmImport is used by the //go:wasmimport directive to store info about
// a WebAssembly function import.
WasmImport *WasmImport
}
// WasmImport stores metadata associated with the //go:wasmimport pragma.
type WasmImport struct {
Module string
Name string
}
func NewFunc(pos src.XPos) *Func {