Releases · fjl/geas

This release has some language changes and new compiler features.
Go 1.23 or later is required to build this version.

Expresssion macro definitions must now contain an equals sign (=) before the body expresssion.
New definition syntax:

#define macro1 = 1
#define macro2(a) = (100 + $a) / b

Note the old syntax without '=' is still accepted, but produces a warning.

You can now declare the EVM version the program should be compiled for.
Use the #pragma target directive to change the target instruction set.

#pragma target "berlin"

All past forks up to "prague" are supported.

Binary operator precedence is now implemented.
Unused label detection: geas will now warn you about labels which are defined but never used.
Unreachable code detection: a warning will also be issued for code that can never be reached
by the EVM, e.g. instructions after JUMP or STOP.

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