Evgeniy Stratonikov
339187a56d
compiler: count locals number properly
2021-02-15 18:48:33 +03:00
Evgeniy Stratonikov
1ae0d022dd
compiler: support basic inlining
2021-02-15 18:48:33 +03:00
Evgenii Stratonikov
01ccaefe2f
compiler: refactor void calls processing
...
Call result is not used only if it occurs inside a `ExprStmt`.
Otherwise (`IfStmt`, `BinExpr`...) it is used.
Fix #1495 .
2020-10-19 10:43:47 +03:00
Anna Shaleva
f8d5c40928
compiler: do not DROP return value with type assertion
...
The same problem as with IF. Example:
```
func foo() interface{} {
...
}
func Main() int{} {
return foo().(int) <--- panic here
}
```
2020-10-13 19:14:44 +03:00
Anna Shaleva
dbce3c9a19
compiler: do not DROP unary expression value inside IF stmt
...
We dropped values from such calls because they where marked as unused
(consequently, were followed by DROP instructions). Example:
if !foo() { <--- panic here
...
}
This commit prevents the following runtime error during script execution:
```
"error encountered at instruction ** (NOT): runtime error: invalid memory address or nil pointer dereference"
```
2020-10-13 19:14:44 +03:00
Evgenii Stratonikov
6701e8cda0
compiler: allow to use local variables in init()
...
Because body of multiple `init()` functions constitute single
method in contract, we initialize slot with maximum amount of
locals encounterered in any of `init()` functions and clear them
before emitting body of each instance of `init()`.
2020-10-06 19:08:32 +03:00
Evgenii Stratonikov
fd52dee79f
compiler: process literals in analyzeVoidCalls
...
Function call can occur in the slice or map literal
and its result surely isn't unused.
2020-09-25 15:34:49 +03:00
Roman Khimov
18204ec21a
Merge pull request #1383 from nspcc-dev/compiler/switchtag
...
compiler: fix a bug with type conversion in switch
2020-09-03 14:40:17 +03:00
Anna Shaleva
058da7c2bd
compiler: getFuncNameFromDecl for methods on pointers
...
Declaration has *ast.StarExpr type in case of method on pointer.
2020-09-02 22:41:54 +03:00
Evgenii Stratonikov
74dda0ac66
compiler: allow to use type conversion in range
2020-09-02 15:35:20 +03:00
Evgenii Stratonikov
7d61a567d5
compiler: fix a bug with type conversion in switch
...
It was incorrectly parsed as void call.
2020-09-02 14:48:19 +03:00
Evgenii Stratonikov
5d82b82efb
compiler: support recover()
2020-08-27 10:28:50 +03:00
Evgenii Stratonikov
fa1d1a8b00
compiler: support defer statement
...
Compile `defer` statement to a TRY/ENDFINALLY opcode pair.
2020-08-27 10:28:50 +03:00
Evgenii Stratonikov
b18a7f200c
compiler: calculate local variables properly
...
In case when right-hand side of an assignment is a function,
left-hand side should be used.
2020-08-27 10:28:50 +03:00
Evgenii Stratonikov
e58616b975
compiler: drop unused call results
...
Close #683 .
2020-08-24 19:34:51 +03:00
Evgenii Stratonikov
f70cb4f34a
compiler: do not use voidCalls when calculating stack size
...
This was probably a part of some earlier logic.
2020-08-24 19:34:51 +03:00
Evgenii Stratonikov
a781d299e0
compiler: use fully-qualified names for tracking functions
...
Function name now consists of 3 parts:
1) full package path
2) method receiver type (if any)
3) function name itself .
Fix #1150 .
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-31 12:07:06 +03:00
Evgenii Stratonikov
1ee4acbdbc
compiler: manage variables in a separate varScope struct
...
Abstract var scope management from the funcScope.
2020-06-30 10:31:51 +03:00
Evgenii Stratonikov
c57d4cfff2
compiler: count current amount of locals correctly
2020-06-26 20:05:10 +03:00
Evgenii Stratonikov
ed45ff98e3
compiler: process interop together with package
...
Closes #913 .
Provide package info in the funcScope to check if function is defined
insided an interop package. As a good side-effect bytecode for builtins from `util`
is no longer emitted.
Related #941 .
2020-06-09 12:41:33 +03:00
Evgenii Stratonikov
d0735257ce
compiler: support range loops with value variables
...
Closes #958 .
2020-05-20 14:14:29 +03:00
Evgenii Stratonikov
b4bad11699
compiler: count the number of variables correctly
2020-05-19 16:47:43 +03:00
Evgenii Stratonikov
0cb6dc47e4
vm: implement slot-related opcodes
...
1. Slot is a new mechanism for storing variables during execution
which is more convenient than alt.stack. This commit implements
support for slot opcodes in both vm and compiler.
2. Remove old alt.stack opcodes.
3. Do not process globals at the start of every function, but instead
load them single time at main.
2020-05-12 16:23:08 +03:00
Evgenii Stratonikov
75fb3af48f
compiler: add basic support for function literals
...
Implement basic support for function literals.
Nested function literals and variables from closure are not supported for now.
2020-05-12 12:56:52 +03:00
Evgenii Stratonikov
b0a89e8a1a
compiler: support named returns
2020-05-06 18:22:52 +03:00
Evgenii Stratonikov
770cff8b91
compiler: allow to use return with no arguments
2020-05-06 18:22:52 +03:00
Evgenii Stratonikov
457e7e006a
compiler: support exporting method variables in debug info
2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
00c40b58aa
compiler: record basic debug info
...
Save info about method's byte-code sections.
2020-04-06 15:30:06 +03:00
Evgenii Stratonikov
a43c9b9246
compiler: calculate stack size more precisely
...
When calculating number of local variables, only
defining assignments (i.e. via `:=`) must be taken into account.
2020-04-01 17:36:19 +03:00
Evgenii Stratonikov
5e229d84d4
compiler: use uint16 for label numbers
...
As noted in #687 this will make compiler a bit more predictable.
2020-02-21 17:45:45 +03:00
Roman Khimov
852e6a335b
compiler: move it up from vm
...
It really deserves it, I think. Especially given that it doesn't have any
direct usage of `vm` package now.
2019-12-03 18:23:46 +03:00
