printStackTrace (--)

Inputs

• None.

Outputs

• None.

printStackTrace does not change the data stack. It only prints the current scope stack.

Behavior

• The first printed frame is the current location.
• Older frames follow on later lines with the suffix , Called from here.
• Each line includes the file path, line, column, and the formatted source text of the node for that frame.

Example

test.mpl

{} 0 {} [
  inner: [printStackTrace];
  outer: [inner];
  outer
  0
] "main" exportFunction

Expected Output During Compilation

test.mpl(2,11): «printStackTrace»
test.mpl(3,11): «inner», Called from here
test.mpl(4,3): «outer», Called from here
test.mpl(6,10): «exportFunction», Called from here

See also

• failCompilation builtin (--) Aborts compilation immediately.
• getCallTrace builtin (-- callTrace) Returns a Ref to the current call trace, or NIL when unavailable.
• printCompilerMessage builtin (message --) Prints a known Text message during compilation and appends one line-feed character.
• printStack builtin (--) Prints the current data stack in canonical formatter form; it does not itself pop stack objects.
• raiseStaticError builtin (message --) Raises a compile-time error with the given known Text message.