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-rw-r--r--CompilerUtils.h17
1 files changed, 11 insertions, 6 deletions
diff --git a/CompilerUtils.h b/CompilerUtils.h
index 7ac3cc29..fe28cead 100644
--- a/CompilerUtils.h
+++ b/CompilerUtils.h
@@ -54,6 +54,8 @@ public:
unsigned storeInMemory(unsigned _offset, Type const& _type = IntegerType(256), bool _padToWordBoundaries = false);
/// Dynamic version of @see storeInMemory, expects the memory offset below the value on the stack
/// and also updates that.
+ /// Stack pre: memory_offset value...
+ /// Stack post: (memory_offset+length)
void storeInMemoryDynamic(Type const& _type, bool _padToWordBoundaries = true);
/// @returns _size rounded up to the next multiple of 32 (the number of bytes occupied in the
/// padded calldata)
@@ -75,11 +77,13 @@ public:
/// @note Only works for types of fixed size.
void computeHashStatic(Type const& _type = IntegerType(256), bool _padToWordBoundaries = false);
- /// Copies a byte array to a byte array in storage, where the target is assumed to be on the
- /// to top of the stay. Leaves a reference to the target on the stack.
+ /// Copies a byte array to a byte array in storage.
+ /// Stack pre: [source_reference] target_reference
+ /// Stack post: target_reference
void copyByteArrayToStorage(ByteArrayType const& _targetType, ByteArrayType const& _sourceType) const;
/// Clears the length and data elements of the byte array referenced on the stack.
- /// Removes the reference from the stack.
+ /// Stack pre: reference
+ /// Stack post:
void clearByteArray(ByteArrayType const& _type) const;
/// Bytes we need to the start of call data.
@@ -87,10 +91,11 @@ public:
static const unsigned int dataStartOffset;
private:
+ /// Prepares the given type for storing in memory by shifting it if necessary.
unsigned prepareMemoryStore(Type const& _type, bool _padToWordBoundaries) const;
- /// Appends a loop that clears all storage between the storage reference at the stack top
- /// and the one below it (excluding).
- /// Will leave the single value of the end pointer on the stack.
+ /// Appends a loop that clears a sequence of storage slots (excluding end).
+ /// Stack pre: end_ref start_ref
+ /// Stack post: end_ref
void clearStorageLoop() const;
CompilerContext& m_context;