Comments (6)
It looks like the arguments to Droid
aren't being enforested. It will work if you wrap the constructor call in parens:
let bb8 = (new Droid('BB-8', 'orange'));
console.log(bb8.beep());
from sweet-core.
Hello @gabejohnson
Thanks for your answer.
Seems that you know how to workaround the possible problems that could emerge. Could you please help me building a very simple macro ? I just want to simulate the apply operator from haskell. So:
add $ 1 2
// becomes
add (1) (2)
I made several attempts, but none of them succeed compiling.
Regards
from sweet-core.
@danielo515 You're going to need to use the operator
keyword as outlined https://www.sweetjs.org/doc/tutorial#sweet-operators
This is what I came up with
operator $ right 0 = (left, right) =>
#`
${left}(${right})
`;
log $ 1; // log(1);
You're not going to be able to support something like log $ 1 2
though as the second argument to $
is an already fully expanded expression. log $ 1 $ 2
should work though.
from sweet-core.
@gabejohnson "space" does not play in precedence resolution, right?
from sweet-core.
@vendethiel not certain what you mean, but the space b/w 1 2
should just result in a syntax error. But sweet resolves it by putting 2
in a separate statement.
from sweet-core.
Hello @gabejohnson ,
That's something I tried already. Since writing one dollar sing instead of two parents is less typing, the final result will be equally ugly.
This seems to be a great challenge for everything I tried so far: babel-macros, livescript, babel plugins, sweet....
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Related Issues (20)
- How to import macros by one macro, maybe we can name it meta-macro? HOT 2
- Syntactical feasibility/implementation advice HOT 12
- Updating codegen HOT 1
- Errors with valid ES6 import syntax HOT 3
- Hygiene broken in template literals that use interpolation HOT 1
- Can you make a "symbol" macro? HOT 5
- Is this repo being maintained?
- Operator precedence not respected HOT 2
- Question: best way to include sweet.js in my project HOT 4
- Import not working HOT 6
- Compile to JavaScript without semi colons HOT 4
- [Question] How does sweet.compile or sweet.parse function works? HOT 1
- Extend native JS / TS objects in a safe way HOT 1
- Not renaming variables inside parens HOT 3
- Wrong precedence for operator HOT 1
- is this still repo active? we need es macros HOT 1
- [Question] How to render a dynamic expression inside a function?
- Let's fork the project! HOT 4
- Variable binding (hygiene, gensym) not working in 2-level macros HOT 2
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