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Merge pull request #9717 from ethereum/prepare071

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Prepare release of 0.7.1.
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chriseth 2020-09-02 12:58:13 +02:00 committed by GitHub
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24
Changelog.md
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### 0.7.1 (unreleased)
### 0.7.1 (2020-09-02)
Language Features:
* Allow function definitions outside of contracts, behaving much like internal library functions.
@ -6,16 +6,19 @@ Language Features:
Compiler Features:
* SMTChecker: Add underflow and overflow as verification conditions in the CHC engine.
* Standard JSON Interface: Do not run EVM bytecode code generation, if only Yul IR or EWasm output is requested.
* Yul: Report error when using non-string literals for ``datasize()``, ``dataoffset()``, ``linkersymbol()``, ``loadimmutable()``, ``setimmutable()``.
* Yul Optimizer: LoopInvariantCodeMotion can move reading operations outside for-loops as long as the affected area is not modified inside the loop.
* SMTChecker: Support conditional operator.
* SMTChecker: Support bitwise or, xor and not operators.
* SMTChecker: Support conditional operator.
* Standard JSON Interface: Do not run EVM bytecode code generation, if only Yul IR or EWasm output is requested.
* Yul Optimizer: LoopInvariantCodeMotion can move reading operations outside for-loops as long as the affected area is not modified inside the loop.
* Yul: Report error when using non-string literals for ``datasize()``, ``dataoffset()``, ``linkersymbol()``, ``loadimmutable()``, ``setimmutable()``.
Bugfixes:
* AST: Remove ``null`` member values also when the compiler is used in standard-json-mode.
* General: Allow `type(Contract).name` for abstract contracts and interfaces.
* Immutables: Disallow assigning immutables more than once during their declaration.
* Immutables: Properly treat complex assignment and increment/decrement as both reading and writing and thus disallow it everywhere for immutable variables.
* Optimizer: Keep side-effects of ``x`` in ``byte(a, shr(b, x))`` even if the constants ``a`` and ``b`` would make the expression zero unconditionally. This optimizer rule is very hard if not impossible to trigger in a way that it can result in invalid code, though.
* References Resolver: Fix internal bug when using constructor for library.
* Scanner: Fix bug where whitespace would be allowed within the ``->`` token (e.g. ``function f() - > x {}`` becomes invalid in inline assembly and Yul).
* SMTChecker: Fix internal error in BMC function inlining.
* SMTChecker: Fix internal error on array implicit conversion.
@ -24,14 +27,11 @@ Bugfixes:
* SMTChecker: Fix internal error on tuple assignment.
* SMTChecker: Fix internal error on tuples of one element that have tuple type.
* SMTChecker: Fix soundness of array ``pop``.
* References Resolver: Fix internal bug when using constructor for library.
* Yul Optimizer: Make function inlining order more resilient to whether or not unrelated source files are present.
* Yul Optimizer: Ensure that Yul keywords are not mistakenly used by the NameDispenser and VarNameCleaners. The bug would manifest as uncompilable code.
* Type Checker: Disallow signed literals as exponent in exponentiation operator.
* Allow `type(Contract).name` for abstract contracts and interfaces.
* Type Checker: Disallow structs containing nested mapping in memory as parameters for library functions.
* Type Checker: Disallow ``using for`` directive inside interfaces.
* Immutables: Disallow assigning immutables more than once during their declaration.
* Type Checker: Disallow signed literals as exponent in exponentiation operator.
* Type Checker: Disallow structs containing nested mapping in memory as parameters for library functions.
* Yul Optimizer: Ensure that Yul keywords are not mistakenly used by the NameDispenser and VarNameCleaners. The bug would manifest as uncompilable code.
* Yul Optimizer: Make function inlining order more resilient to whether or not unrelated source files are present.
### 0.7.0 (2020-07-28)

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docs/bugs_by_version.json
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"0.7.0": {
"bugs": [],
"released": "2020-07-28"
},
"0.7.1": {
"bugs": [],
"released": "2020-09-02"
}
}