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ethereum eth-to-wei fix & float support #63

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ethereum eth-to-wei fix & float support #63

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27 changes: 18 additions & 9 deletions libs/ethereum.red
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Original file line number Diff line number Diff line change
Expand Up @@ -12,24 +12,33 @@ Red [

eth: context [

eth-to-wei: func [eth /local cnt n d scale][
eth-to-wei: func [eth [string! float! integer!] /local cnt n d scale][
either string? eth [
string-to-i256 eth 18
][
cnt: 0
scale: to-i256 #{0DE0B6B3A7640000} ;-- 1e18
if string? eth [
if d: find/tail eth #"." [
cnt: length? d

if eth == 0.0 [eth: 0] ; integer

if float? eth [ ; non-zero
cnt: 0
n: 1

while [(cnt < 18) and ((eth * n: power 10 cnt) < 1)] [
cnt: cnt + 1
]
eth: to float! eth
]
if cnt > 0 [

d: find/tail to string! eth * n #"."
cnt: cnt +
min length? d 18 - cnt

n: power 10 cnt
eth: eth * n

scale: div256 scale to-i256 n
]
eth: to-i256 any [attempt [to-integer eth] eth]

eth: to-i256 to-integer eth
mul256 eth scale
]
]
Expand Down