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core: update System.Contract.Call syscall

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1. Remove `System.Contract.CallEx`.
2. Extend number of parameters.
3. Add return value count to `VM.Context`.
This commit is contained in:
Evgenii Stratonikov 2020-12-29 13:44:07 +03:00 • committed by Evgeniy Stratonikov
parent 86b0e76bf0
commit 1c0c331e25
38 changed files with 170 additions and 171 deletions
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9
pkg/compiler/codegen.go
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@ -866,14 +866,7 @@ func (c *codegen) Visit(node ast.Node) ast.Visitor {
emit.Opcodes(c.prog.BinWriter, opcode.PACK)
numArgs -= varSize - 1
}
// CallFlag in CallEx interop should be the last argument
// but this can't be reflected in signature due to varargs.
// It is first in compiler interop though, thus we just need to reverse 1 values less.
if f != nil && isSyscall(f) && f.pkg.Name() == "contract" && f.name == "CallEx" {
c.emitReverse(numArgs - 1)
} else {
c.emitReverse(numArgs)
}
c.emitReverse(numArgs)
}
// Check builtin first to avoid nil pointer on funcScope!