Merge pull request bellard#37 from justjake/jake--update-latest

Update quickjs to 2021-03-27

quickjs/Changelog

@@ -1,3 +1,17 @@
+2021-03-27:
+
+- faster Array.prototype.push and Array.prototype.unshift
+- added JS_UpdateStackTop()
+- fixed Windows console
+- misc bug fixes
+
+2020-11-08:
+
+- improved function parameter initializers
+- added std.setenv(), std.unsetenv() and std.getenviron()
+- added JS_EvalThis()
+- misc bug fixes
+
 2020-09-06:
 
 - added logical assignment operators

quickjs/LICENSE

@@ -0,0 +1,22 @@
+QuickJS Javascript Engine
+
+Copyright (c) 2017-2021 Fabrice Bellard
+Copyright (c) 2017-2021 Charlie Gordon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

quickjs/Makefile

@@ -1,8 +1,8 @@
 #
 # QuickJS Javascript Engine
 # 
-# Copyright (c) 2017-2020 Fabrice Bellard
-# Copyright (c) 2017-2020 Charlie Gordon
+# Copyright (c) 2017-2021 Fabrice Bellard
+# Copyright (c) 2017-2021 Charlie Gordon
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -53,7 +53,11 @@ CONFIG_BIGNUM=y
 OBJDIR=.obj
 
 ifdef CONFIG_WIN32
-  CROSS_PREFIX=i686-w64-mingw32-
+  ifdef CONFIG_M32
+    CROSS_PREFIX=i686-w64-mingw32-
+  else
+    CROSS_PREFIX=x86_64-w64-mingw32-
+  endif
   EXE=.exe
 else
   CROSS_PREFIX=
@@ -175,6 +179,7 @@ LIBS=-lm
 ifndef CONFIG_WIN32
 LIBS+=-ldl -lpthread
 endif
+LIBS+=$(EXTRA_LIBS)
 
 $(OBJDIR):
 	mkdir -p $(OBJDIR) $(OBJDIR)/examples $(OBJDIR)/tests
@@ -281,15 +286,12 @@ $(OBJDIR)/%.check.o: %.c | $(OBJDIR)
 regexp_test: libregexp.c libunicode.c cutils.c
 	$(CC) $(LDFLAGS) $(CFLAGS) -DTEST -o $@ libregexp.c libunicode.c cutils.c $(LIBS)
 
-jscompress: jscompress.c
-	$(CC) $(LDFLAGS) $(CFLAGS) -o $@ jscompress.c
-
 unicode_gen: $(OBJDIR)/unicode_gen.host.o $(OBJDIR)/cutils.host.o libunicode.c unicode_gen_def.h
 	$(HOST_CC) $(LDFLAGS) $(CFLAGS) -o $@ $(OBJDIR)/unicode_gen.host.o $(OBJDIR)/cutils.host.o
 
 clean:
 	rm -f repl.c qjscalc.c out.c
-	rm -f *.a *.o *.d *~ jscompress unicode_gen regexp_test $(PROGS)
+	rm -f *.a *.o *.d *~ unicode_gen regexp_test $(PROGS)
 	rm -f hello.c test_fib.c
 	rm -f examples/*.so tests/*.so
 	rm -rf $(OBJDIR)/ *.dSYM/ qjs-debug

quickjs/TODO

@@ -1,33 +1,48 @@
-Misc:
-- use realpath in module name normalizer and put it in quickjs-libc
-- use custom printf to avoid C library compatibility issues
-- rename CONFIG_ALL_UNICODE, CONFIG_BIGNUM, CONFIG_ATOMICS, CONFIG_CHECK_JSVALUE ?
+Bugs:
+- modules: better error handling with cyclic module references
+
+Misc ideas:
+- use custom printf to avoid compatibility issues with floating point numbers
+- consistent naming for preprocessor defines
 - unify coding style and naming conventions
 - use names from the ECMA spec in library implementation
-- modules: if no ".", use a well known module loading path ?
-- use JSHoistedDef only for global variables (JSHoistedDef.var_name != JS_ATOM_NULL)
-- add index in JSVarDef and is_arg flag to merge args and vars in JSFunctionDef
-- replace most JSVarDef flags with var_type enumeration
 - use byte code emitters with typed arguments (for clarity)
 - use 2 bytecode DynBufs in JSFunctionDef, one for reading, one for writing
   and use the same wrappers in all phases
 - use more generic method for line numbers in resolve_variables and resolve_labels
 - use custom timezone support to avoid C library compatibility issues
 
 Memory:
+- use memory pools for objects, etc?
 - test border cases for max number of atoms, object properties, string length
 - add emergency malloc mode for out of memory exceptions.
 - test all DynBuf memory errors
 - test all js_realloc memory errors
-- bignum: handle memory errors
-- use memory pools for objects, etc?
 - improve JS_ComputeMemoryUsage() with more info
 
-Optimizations:
+Built-in standard library:
+- BSD sockets
+- modules: use realpath in module name normalizer and put it in quickjs-libc
+- modules: if no ".", use a well known module loading path ?
+- get rid of __loadScript, use more common name
+
+REPL:
+- debugger
+- readline: support MS Windows terminal
+- readline: handle dynamic terminal resizing
+- readline: handle double width unicode characters
+- multiline editing
+- runtime object and function inspectors
+- interactive object browser
+- use more generic approach to display evaluation results
+- improve directive handling: dispatch, colorize, completion...
+- save history
+- close all predefined methods in repl.js and jscalc.js
+
+Optimization ideas:
 - 64-bit atoms in 64-bit mode ?
-- use auto-init properties for more global objects
+- 64-bit small bigint in 64-bit mode ?
 - reuse stack slots for disjoint scopes, if strip
-- optimize `for of` iterator for built-in array objects
 - add heuristic to avoid some cycles in closures
 - small String (0-2 charcodes) with immediate storage
 - perform static string concatenation at compile time
@@ -36,43 +51,20 @@ Optimizations:
 - optimize `s += a + b`, `s += a.b` and similar simple expressions
 - ensure string canonical representation and optimise comparisons and hashes?
 - remove JSObject.first_weak_ref, use bit+context based hashed array for weak references
-- optimize function storage with length and name accessors?
 - property access optimization on the global object, functions,
   prototypes and special non extensible objects.
 - create object literals with the correct length by backpatching length argument
 - remove redundant set_loc_uninitialized/check_uninitialized opcodes
 - peephole optim: push_atom_value, to_propkey -> push_atom_value
 - peephole optim: put_loc x, get_loc_check x -> set_loc x
-- comparative performance benchmark
-- use variable name when throwing uninitialized exception if available
 - convert slow array to fast array when all properties != length are numeric
 - optimize destructuring assignments for global and local variables
 - implement some form of tail-call-optimization
 - optimize OP_apply
 - optimize f(...b)
 
-Extensions:
-- support more features in [features] section
-- add built-in preprocessor in compiler, get rid of jscompress
-  handle #if, #ifdef, #line, limited support for #define
-- get rid of __loadScript, use more common name
-- BSD sockets
-
-REPL:
-- debugger
-- readline: support MS Windows terminal
-- readline: handle dynamic terminal resizing
-- readline: handle double width unicode characters
-- multiline editing
-- runtime object and function inspectors
-- interactive object browser
-- use more generic approach to display evaluation results
-- improve directive handling: dispatch, colorize, completion...
-- save history
-- close all predefined methods in repl.js and jscalc.js
-
 Test262o:   0/11262 errors, 463 excluded
 Test262o commit: 7da91bceb9ce7613f87db47ddd1292a2dda58b42 (es5-tests branch)
 
-Test262: 30/71748 errors, 868 excluded, 474 skipped
-Test262 commit: 24c67328062383079ada85f4d253eb0526fd209b
+Result: 35/75280 errors, 909 excluded, 585 skipped
+Test262 commit: 31126581e7290f9233c29cefd93f66c6ac78f1c9

quickjs/VERSION

@@ -1 +1 @@
-2020-09-06
+2021-03-27