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Allow access to `_slot` for local storage pointer variables.

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chriseth
2020-02-25 14:28:04 +01:00
parent 44bcff42f5
commit 45041e5d3a
8 changed files with 78 additions and 7 deletions
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docs/assembly.rst
+5 -1
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@@ -172,6 +172,11 @@ Assignments are possible to assembly-local variables and to function-local
variables. Take care that when you assign to variables that point to
memory or storage, you will only change the pointer and not the data.
You can assign to the ``_slot`` part of a local storage variable pointer.
For these (structs, arrays or mappings), the ``_offset`` part is always zero.
It is not possible to assign to the ``_slot`` or ``_offset`` part of a state variable,
though.
Things to Avoid
@@ -225,4 +230,3 @@ first slot of the array and followed by the array elements.
Statically-sized memory arrays do not have a length field, but it might be added later
to allow better convertibility between statically- and dynamically-sized arrays, so
do not rely on this.