UDF Parse Define

[arcosx]

created by base64

CREATE FUNCTION [FUNCTION NAME](x [TYPE], y [TYPE]) RETURNS  [TYPE] FROM WASM://[base64];

Example:

Wasm Raw Wat

(module
  (func $gcd (param i32 i32) (result i32)
    (local i32)
    block  ;; label = @1
      block  ;; label = @2
        local.get 0
        br_if 0 (;@2;)
        local.get 1
        local.set 2
        br 1 (;@1;)
      end
      loop  ;; label = @2
        local.get 1
        local.get 0
        local.tee 2
        i32.rem_u
        local.set 0
        local.get 2
        local.set 1
        local.get 0
        br_if 0 (;@2;)
      end
    end
    local.get 2
  )
  (export "gcd" (func $gcd))
)

CREATE FUNCTION  gcd (x INT, y INT) RETURNS INT FROM WASM: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 ;

# run
YIELD gcd(5,6);

[Triple-Z]

CREATE FUNCTION function_name ([params]) RETURN type_spec FROM create_function_from_vendor;

function_param
    : name_label type_spec {
        $$ = new FunctionParam($1, $2->type);
    }
    ;

function_param_list
    : function_param {
        $$ = new FunctionParamList();
        $$->addParam($1);
    }
    | function_param_list COMMA function_param {
        $$ = $1;
        $$->addParam($3);
    }
    ;

create_function_from_vendor
    : HTTP_URL {
        $$ = new FunctionSource(std::string("HTTP"), *$1);
    }
    | WASM_BASE64 {
        $$ = new FunctionSource(std::string("WASM"), *$1);
    }
    ;

create_function_sentence
    : KW_CREATE KW_FUNCTION opt_if_not_exists name_label L_PAREN R_PAREN KW_RETURN type_spec KW_FROM create_function_from_vendor {
        $$ = new CreateFunctionSentence($4, new FunctionParamList(), $8->type, $10, $3);
    }
    | KW_CREATE KW_FUNCTION opt_if_not_exists name_label L_PAREN function_param_list R_PAREN KW_RETURN type_spec KW_FROM create_function_from_vendor {
        $$ = new CreateFunctionSentence($4, $6, $9->type, $11, $3);
    }
    ;

[arcosx]

Can we make this?

CREATE FUNCTION [FUNCTION NAME](x [TYPE], y [TYPE]) RETURNS  [TYPE] FROM WASM://[base64];
CREATE FUNCTION [FUNCTION NAME](x [TYPE], y [TYPE]) RETURNS  [TYPE] FROM WAT://[base64];
CREATE FUNCTION [FUNCTION NAME](x [TYPE], y [TYPE]) RETURNS  [TYPE] FROM PATH://[HTTP Path Or File Path];

[Triple-Z]

A greatest common divider example:

CREATE FUNCTION gcd_main(x INT32, y INT32) RETURN INT32 FROM WAT: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;

RETURN UDF("gcd", [12, 27]);

DROP FUNCTION gcd;

[arcosx]

A greatest common divider example:

CREATE FUNCTION gcd_main(x INT32, y INT32) RETURN INT32 FROM WASM: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;

RETURN UDF("gcd", [12, 27]);

DROP FUNCTION gcd;

great work.