5 Commits

Author	SHA1	Message	Date
Robert Griesemer	b569b87ca1	cmd/compile/internal/gc: recursive-descent parser ... This is a translation of the yacc-based parser with adjustements to make the grammar work for a recursive-descent parser followed by cleanups and simplifications. The yacc actions were mostly literally copied for correctness with better temporary names. A few of the syntax tests were adjusted for slightly different error messages (it is very difficult to match the yacc-based error messages in all cases, and sometimes the new parser could produce better errors). The new parser is enabled by default. To switch back to the yacc-based parser, set -oldparser. To hardwire the switch back, uncomment "oldparser = 1" in lex.go. - passes all.bash - ~18% reduced parse time per file on average for make.bash - ~3% reduced compile time for building cmd/compile Change-Id: Icb5651bb9d8b9f66261762d2c94a03793050d4ce Reviewed-on: https://go-review.googlesource.com/16665 Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Russ Cox <rsc@golang.org>	2015-11-13 14:53:57 +00:00
Russ Cox	57eb06fe93	test: use testlib (final 61) ... X ,s;^// \$G (\$D/)?\$F\.go *$;// compile;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A *$;// build;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A && \./\$A\.out *$;// run;g X ,s;^// errchk \$G( -e)? (\$D/)?\$F\.go *$;// errorcheck;g R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/5671080	2012-02-16 23:51:04 -05:00
Ian Lance Taylor	db3ec4f239	Match gccgo error messages. ... bug121.go:12:3: error: name list not allowed in interface type bug121.go:16:2: error: expected signature or type name semi1.go:10:76: error: unexpected semicolon or newline before ‘{’ semi1.go:10:5: error: reference to undefined name ‘x’ semi1.go:10:8: error: reference to undefined name ‘y’ semi1.go:12:3: error: reference to undefined name ‘z’ semi2.go:10:79: error: unexpected semicolon or newline before ‘{’ semi2.go:10:9: error: reference to undefined name ‘x’ semi3.go:10:79: error: unexpected semicolon or newline before ‘{’ semi3.go:10:6: error: reference to undefined name ‘x’ semi3.go:10:9: error: reference to undefined name ‘y’ semi3.go:10:12: error: reference to undefined name ‘z’ semi3.go:12:3: error: reference to undefined name ‘z’ semi4.go:11:2: error: unexpected semicolon or newline before ‘{’ semi4.go:10:6: error: reference to undefined name ‘x’ semi4.go:12:3: error: reference to undefined name ‘z’ semi5.go:10:1: error: unexpected semicolon or newline before ‘{’ semi7.go:11:2: error: unexpected semicolon or newline before ‘else’ semi7.go:10:5: error: reference to undefined name ‘x’ slice.go:9:11: error: missing lower bound in slice expression slice.go:9:9: error: reference to undefined name ‘y’ slice.go:9:12: error: reference to undefined name ‘z’ R=rsc CC=golang-dev https://golang.org/cl/201061	2010-02-04 21:31:30 -08:00
Russ Cox	288c1c83d9	gc: tweak error messages, avoid internalization settings in bison ... R=r CC=golang-dev https://golang.org/cl/194129	2010-01-28 15:57:44 -08:00
Russ Cox	2a01d72878	gc: improved syntax errors ... * example-based syntax errors (go.errors) * enable bison's more specific errors and translate grammar token names into tokens like ++ * test cases R=ken2, r, ken3 CC=golang-dev https://golang.org/cl/194085	2010-01-26 23:13:22 -08:00