Add support for Soroban external calls 🎉 #1679
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Signed-off-by: salaheldinsoliman <[email protected]>
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Signed-off-by: salaheldinsoliman <[email protected]>
Signed-off-by: salaheldinsoliman <[email protected]>
Signed-off-by: salaheldinsoliman <[email protected]>
Signed-off-by: salaheldinsoliman <[email protected]>
Signed-off-by: salaheldinsoliman <[email protected]>
seanyoung
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Feb 2, 2025
src/emit/expression.rs
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| Expression::PointerPosition { pointer } => { | ||
| let ptr = expression(target, bin, pointer, vartab, function, ns); | ||
| let data = bin.vector_bytes(ptr); | ||
| let res = bin | ||
| .builder | ||
| .build_ptr_to_int(data, bin.context.i64_type(), "sesa"); | ||
|
|
||
| res.unwrap().into() | ||
| } |
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Please help me understand Expression::PointerPosition . It takes a vector (e.g. Type::DynamicString), gets the pointer and converts the pointer to i64 (even though pointers are 32 bit in wasm).
How about renaming it to Expression::VectorData ?
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The expression is used to get the ptr position in linear memory as an i64, then it is passed to Soroban's host (as a param to a host function that needs it)
The i64 rationale is that Soroban host always takes i64 values. And that expression is only used in Soroban at the moment
Signed-off-by: salaheldinsoliman <[email protected]>
Signed-off-by: salaheldinsoliman <[email protected]>
Signed-off-by: salaheldinsoliman <[email protected]>
salaheldinsoliman
merged commit 07ad1a1
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hyperledger-solang:main
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This PR adds support for Soroban external calls. This is the first step to support value transfers from inside Soroban contracts.
What a follow up PR should do is support encoding/decoding of a bigger range of value types.