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49 lines
1.7 KiB
Plaintext
49 lines
1.7 KiB
Plaintext
(defmodule Debug
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(defdynamic sanitize-addresses []
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(add-cflag "-fsanitize=address"))
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(register memory-balance (Fn [] Long))
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(register reset-memory-balance! (Fn [] ()))
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(register log-memory-balance! (Fn [Bool] ()))
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;; The calls inside the form will be logged to stdout. Requires compiling with --log-memory.
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(defmacro memory-logged [form]
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(list 'do
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'(Debug.log-memory-balance! true)
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form
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'(Debug.log-memory-balance! false)))
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;; Raises an error if the memory balance (nr of alloc:s minus nr of free:s) isn't 0. Requires compiling with --log-memory.
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(defmacro assert-balanced [form]
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(list 'let '[balance (Debug.memory-balance)]
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(list 'do
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(list 'let []
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form)
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'(if (= balance (Debug.memory-balance))
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()
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(do (IO.println &(fmt "Invalid memory balance: %d" (Debug.memory-balance)))
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(System.exit 1)))
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())))
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;; Print the value of an expression to stdout, then return its value.
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(defn trace [x]
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(do
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(IO.println &(str &x))
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x))
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)
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;; HACK! This silences compiler errors about 'source-location' and 'source-path' being undefined.
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;; Actual calls to these special forms will be handled directly in the dynamic evaluator, see 'Eval.hs'.
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(defdynamic source-location [] "")
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(defdynamic source-path [] "")
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;; Crash the program with an error message unless the expression evaluates to 'true'.
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(defmacro assert [expr]
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(list 'if (list '= true expr)
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()
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(list 'do
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(list 'println* "Assertion '" (str expr) "' failed at " (list 'source-location))
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'(System.exit 1))))
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