Hello, Is it possible to recover the source code of a function as a string? For example, f(x,y) = 2sin(x+y)+1 Is there a function call on f that can get me s="2sin(x+y)+1"? Thanks!

Take a look at Sugar.jl, specifically to its macro_form() function. It first tries to find and parse function’s source, and only if it’s unavailable, falls back to parsing AST. macro_form often fails for functions generated using @eval (since source code includes interpolated values from the context…

If you do @which f(x,y) it will print the file and line number where the function was defined (or it will tell you it was done in the REPL). Try, for example @which sin(π).

In the REPL you could also try @less f(x,y) which wraps the call to the pager on the result from @which

For reference, the source expression is available using the following: Base.uncompressed_ast(methods(f).ms[1]).code But right now it is necessary to go to the original code to get the unparsed version, as suggested above. It’s on the roadmap for 1.0; see this issue and others cross-referenced ther…

Thanks! That’s exactly what I was looking for. In particular, these lines did it: using Sugar method = Sugar.get_method(f, types) code, str = Sugar.get_source(method)

[image] rcnlee: method = Sugar.get_method It took me some time to realize that types is supposed to be a tuple. So, if you want to get the source of a method with the type Vector{Float64} you need to write : method = Sugar.get_method(f, (Vector{Float64),))

[image] ihnorton: But right now it is necessary to go to the original code to get the unparsed version, as suggested above. It’s on the roadmap for 1.0; see this issue and others cross-referenced there. well, the Gallium debugger seems to be capable of showing the source, either in a file or…

The rcnlee procedure with Sugar.jl works just fine…

IIRC Gallium reparses the source.

I’m using Julia 1.0.2, it looks like I can not install Sugar package now. |__/ | julia> using Sugar ERROR: ArgumentError: Package Sugar not found in current path: Run import Pkg; Pkg.add("Sugar") to install the Sugar package. Stacktrace: [1] require(::Module, ::Symbol) at .…

Source code of a function

General Usage

pfitzseb April 2, 2019, 10:27am 12

Take a look at CodeTracking.jl.

Topic		Replies	Views
How to run lowered AST? General Usage	10	1107	April 10, 2018
Is there a way to get the full definition of a function as String? General Usage	8	835	September 22, 2018
Get function as expr General Usage metaprogramming	5	1008	December 15, 2020
Directly modify compiled method without recompilation Performance compilation	25	1434	August 31, 2022
Codegen woes Performance	30	2644	August 27, 2019

Source code of a function

Related topics