listLocalSymbols -- display of local symbols and their values

Description

Synopsis

Usage:

listLocalSymbols f
Inputs:
- f, an instance of the type Pseudocode, a symbol, a dictionary, or a function
Outputs:
- a net, a compact display of the symbols in the local dictionaries attached to the closure f, and their values

i1 : x:=3; y:="hi there"; z:=2^30; f = x->x;

i5 : listLocalSymbols f

o5 = symbol   class     value      location of symbol
     ------   -----     -----      ------------------
     x      : ZZ     -- 3          stdio:1:1-1:2     
     y      : String -- "hi there" stdio:1:7-1:8     
     z      : ZZ     -- 1073741824 stdio:1:22-1:23

i6 : listLocalSymbols symbol x

o6 = symbol   class     value      location of symbol
     ------   -----     -----      ------------------
     x      : ZZ     -- 3          stdio:1:1-1:2     
     y      : String -- "hi there" stdio:1:7-1:8     
     z      : ZZ     -- 1073741824 stdio:1:22-1:23

Synopsis

Usage:

listLocalSymbols
Outputs:
- a net, a compact display of the symbols in the local dictionaries attached to current

This usage works only in the debugger, where current has a non-null value.

i7 : load "Macaulay2Doc/demo1.m2"

i8 : g 2
/usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:12:(3):[2]: error: division by zero
/usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:12:(3):[2]: --entering debugger (type help to see debugger commands)
/usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:11-8:13: --source code:
     b := 1/x;

ii9 : listLocalSymbols

oo9 = symbol   class              value      location of symbol
      ------   -----              -----      ------------------                                                  
      a      : String          -- "hi there" /usr/share/Macaulay2/Macaulay2Doc/demo1.m2:7:6-7:7
      b      : Nothing         -- null       /usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:6-8:7
      x      : ZZ              -- 0          /usr/share/Macaulay2/Macaulay2Doc/demo1.m2:6:6-6:7
      f      : FunctionClosure -- ...        /usr/share/Macaulay2/Macaulay2Doc/demo1.m2:6:1-6:2

Synopsis

Usage:

listLocalSymbols(X,f)
Inputs:
- X, a type
- f, an instance of the type Pseudocode, a symbol, a dictionary, or a function
Outputs:
- a net, a compact display of the symbols in the local dictionaries attached to the closure f, and their values, provided their values are instances of the type X

ii10 : h := x -> y -> y+1;

ii11 : listLocalSymbols(ZZ,h 11)

oo11 = symbol   class    value location of symbol
       ------   -----    ----- ------------------                                                  
       x      : ZZ    -- 0     /usr/share/Macaulay2/Macaulay2Doc/demo1.m2:6:6-6:7
       x      : ZZ    -- 11    stdio:2:6-2:7

Synopsis

Usage:

listLocalSymbols X
Outputs:
- a net, a compact display of the symbols in the local dictionaries attached to current whose values have type X.

This usage works only in the debugger, where current has a non-null value.

ii12 : load "Macaulay2Doc/demo1.m2"

ii13 : g 2
/usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:12:(3):[2]: error: division by zero
/usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:12:(3):[2]: --entering debugger (type help to see debugger commands)
/usr/share/Macaulay2/Macaulay2Doc/demo1.m2:8:11-8:13: --source code:
     b := 1/x;

iii14 : listLocalSymbols ZZ

ooo14 = symbol   class    value
        ------   -----    -----
        x      : ZZ    -- 0    
        ---------------------------------------------------------------------
        location of symbol
        ------------------                                                  
        /usr/share/Macaulay2/Macaulay2Doc/demo1.m2:6:6-6:7

For the programmer

The object listLocalSymbols is a command.