GSoC 2025 - Macro support for teal

[Frityet]

This PR implements macro support for Teal.

Project Proposal

[github-actions[bot]]

Teal Playground URL: https://1051--teal-playground-preview.netlify.app

[hishamhm]

@Frityet CI is red (PUC-Rio Lua 5.1 does not support goto)

[Frityet]

@hishamhm done 😄 👍

[Frityet]

seems like nodes made with block() aren't properly showing up in generated lua? investigating...

local macro test!(): Expression
    local s = block("string")
    s.conststr = "hello"
    return s
end

local x = test!()

[Frityet]

seems like nodes made with block() aren't properly showing up in generated lua? investigating...

local macro test!(): Expression
    local s = block("string")
    s.conststr = "hello"
    return s
end

local x = test!()

nevermind, this is intentional, its cause I didn't put in tk... @hishamhm should we make it so if its a block that depends on tk, such as string or integer that it should error?

[Frityet]

seems like nodes made with block() aren't properly showing up in generated lua? investigating...

local macro test!(): Expression

local s = block("string")

s.conststr = "hello"

return s

end

local x = test!()

nevermind, this is intentional, its cause I didn't put in tk... @hishamhm should we make it so if its a block that depends on tk, such as string or integer that it should error?

Actually I think a better solution is to just put conststr and constnum as blocks and make the parser read from the block