2017-04-04 18:45 GMT+02:00 Esteban Lorenzano <estebanlm@gmail.com>:

still is not there, because is not the same primitive :)

look, this is the way where it is generated:��

translatedPrimitives

"an assorted list of various primitives"

(ByteString compiledMethodAt: #findSubstringViaPrimitive:in:startingAt:matchTable: ifAbsent: []) ifNotNil:

[^#("Pharo uses findSubstringViaPrimitive:in:startingAt:matchTable:"

(Bitmap compress:toByteArray:)

(Bitmap decompress:fromByteArray:at:)

(Bitmap encodeBytesOf:in:at:)

(Bitmap encodeInt:in:at:)

(ByteString compare:with:collated:)

(ByteString translate:from:to:table:)

(ByteString findFirstInString:inSet:startingAt:)

(ByteString indexOfAscii:inString:startingAt:)

(String findSubstringViaPrimitive:in:startingAt:matchTable:)

(ByteArray hashBytes:startingWith:)

(SampledSound convert8bitSignedFrom:to16Bit:))].

^#(

(Bitmap compress:toByteArray:)

(Bitmap decompress:fromByteArray:at:)

(Bitmap encodeBytesOf:in:at:)

(Bitmap encodeInt:in:at:)

(ByteString compare:with:collated:)

(ByteString translate:from:to:table:)

(ByteString findFirstInString:inSet:startingAt:)

(ByteString indexOfAscii:inString:startingAt:)

(ByteString findSubstring:in:startingAt:matchTable:)

(ByteArray hashBytes:startingWith:)

(SampledSound convert8bitSignedFrom:to16Bit:)

)

means that Pharo uses #indSubstringViaPrimitive:in:startingAt:matchTable: while squeak uses #findSubstring:in:startingAt:matchTable:.��

Ok maybe I not understand anything :) But to clarify lets look at image side methods.

in Squeak:

ByteString>>findSubstring: key in: body startingAt: start matchTable: matchTable

<primitive: 'primitiveFindSubstring' module: 'MiscPrimitivePlugin'>

in Pharo:

String>>findSubstringViaPrimitive: key in: body startingAt: start matchTable: matchTable

<primitive: 'primitiveFindSubstring' module: 'MiscPrimitivePlugin'>

So to me they both uses same VM primitive primitiveFindSubstring. Does they are really different inside VM?��