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Unified Diff: third_party/sqlite/sqlite-src-3100200/tool/mkopcodeh.tcl

Issue 2846743003: [sql] Remove SQLite 3.10.2 reference directory. (Closed)
Patch Set: Created 3 years, 8 months ago
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Index: third_party/sqlite/sqlite-src-3100200/tool/mkopcodeh.tcl
diff --git a/third_party/sqlite/sqlite-src-3100200/tool/mkopcodeh.tcl b/third_party/sqlite/sqlite-src-3100200/tool/mkopcodeh.tcl
deleted file mode 100644
index 4c36f24ba47398e98f8f7efd668bcb877ecf7e26..0000000000000000000000000000000000000000
--- a/third_party/sqlite/sqlite-src-3100200/tool/mkopcodeh.tcl
+++ /dev/null
@@ -1,230 +0,0 @@
-#!/usr/bin/tclsh
-#
-# Generate the file opcodes.h.
-#
-# This TCL script scans a concatenation of the parse.h output file from the
-# parser and the vdbe.c source file in order to generate the opcodes numbers
-# for all opcodes.
-#
-# The lines of the vdbe.c that we are interested in are of the form:
-#
-# case OP_aaaa: /* same as TK_bbbbb */
-#
-# The TK_ comment is optional. If it is present, then the value assigned to
-# the OP_ is the same as the TK_ value. If missing, the OP_ value is assigned
-# a small integer that is different from every other OP_ value.
-#
-# We go to the trouble of making some OP_ values the same as TK_ values
-# as an optimization. During parsing, things like expression operators
-# are coded with TK_ values such as TK_ADD, TK_DIVIDE, and so forth. Later
-# during code generation, we need to generate corresponding opcodes like
-# OP_Add and OP_Divide. By making TK_ADD==OP_Add and TK_DIVIDE==OP_Divide,
-# code to translate from one to the other is avoided. This makes the
-# code generator run (infinitesimally) faster and more importantly it makes
-# the library footprint smaller.
-#
-# This script also scans for lines of the form:
-#
-# case OP_aaaa: /* jump, in1, in2, in3, out2-prerelease, out3 */
-#
-# When such comments are found on an opcode, it means that certain
-# properties apply to that opcode. Set corresponding flags using the
-# OPFLG_INITIALIZER macro.
-#
-
-set in stdin
-set currentOp {}
-set nOp 0
-while {![eof $in]} {
- set line [gets $in]
-
- # Remember the TK_ values from the parse.h file.
- # NB: The "TK_" prefix stands for "ToKen", not the graphical Tk toolkit
- # commonly associated with TCL.
- #
- if {[regexp {^#define TK_} $line]} {
- set tk([lindex $line 1]) [lindex $line 2]
- continue
- }
-
- # Find "/* Opcode: " lines in the vdbe.c file. Each one introduces
- # a new opcode. Remember which parameters are used.
- #
- if {[regexp {^.. Opcode: } $line]} {
- set currentOp OP_[lindex $line 2]
- set m 0
- foreach term $line {
- switch $term {
- P1 {incr m 1}
- P2 {incr m 2}
- P3 {incr m 4}
- P4 {incr m 8}
- P5 {incr m 16}
- }
- }
- set paramused($currentOp) $m
- }
-
- # Find "** Synopsis: " lines that follow Opcode:
- #
- if {[regexp {^.. Synopsis: (.*)} $line all x] && $currentOp!=""} {
- set synopsis($currentOp) [string trim $x]
- }
-
- # Scan for "case OP_aaaa:" lines in the vdbe.c file
- #
- if {[regexp {^case OP_} $line]} {
- set line [split $line]
- set name [string trim [lindex $line 1] :]
- set op($name) -1
- set jump($name) 0
- set in1($name) 0
- set in2($name) 0
- set in3($name) 0
- set out1($name) 0
- set out2($name) 0
- for {set i 3} {$i<[llength $line]-1} {incr i} {
- switch [string trim [lindex $line $i] ,] {
- same {
- incr i
- if {[lindex $line $i]=="as"} {
- incr i
- set sym [string trim [lindex $line $i] ,]
- set val $tk($sym)
- set op($name) $val
- set used($val) 1
- set sameas($val) $sym
- set def($val) $name
- }
- }
- jump {set jump($name) 1}
- in1 {set in1($name) 1}
- in2 {set in2($name) 1}
- in3 {set in3($name) 1}
- out2 {set out2($name) 1}
- out3 {set out3($name) 1}
- }
- }
- set order($nOp) $name
- incr nOp
- }
-}
-
-# Assign numbers to all opcodes and output the result.
-#
-set cnt 0
-set max 0
-puts "/* Automatically generated. Do not edit */"
-puts "/* See the tool/mkopcodeh.tcl script for details */"
-set op(OP_Noop) -1
-set order($nOp) OP_Noop
-incr nOp
-set op(OP_Explain) -1
-set order($nOp) OP_Explain
-incr nOp
-
-# The following are the opcodes that are processed by resolveP2Values()
-#
-set rp2v_ops {
- OP_Transaction
- OP_AutoCommit
- OP_Savepoint
- OP_Checkpoint
- OP_Vacuum
- OP_JournalMode
- OP_VUpdate
- OP_VFilter
- OP_Next
- OP_NextIfOpen
- OP_SorterNext
- OP_Prev
- OP_PrevIfOpen
-}
-
-# Assign small values to opcodes that are processed by resolveP2Values()
-# to make code generation for the switch() statement smaller and faster.
-#
-set cnt 0
-for {set i 0} {$i<$nOp} {incr i} {
- set name $order($i)
- if {[lsearch $rp2v_ops $name]>=0} {
- incr cnt
- while {[info exists used($cnt)]} {incr cnt}
- set op($name) $cnt
- set used($cnt) 1
- set def($cnt) $name
- }
-}
-
-# Generate the numeric values for remaining opcodes
-#
-for {set i 0} {$i<$nOp} {incr i} {
- set name $order($i)
- if {$op($name)<0} {
- incr cnt
- while {[info exists used($cnt)]} {incr cnt}
- set op($name) $cnt
- set used($cnt) 1
- set def($cnt) $name
- }
-}
-set max $cnt
-for {set i 1} {$i<=$nOp} {incr i} {
- if {![info exists used($i)]} {
- set def($i) "OP_NotUsed_$i"
- }
- set name $def($i)
- puts -nonewline [format {#define %-16s %3d} $name $i]
- set com {}
- if {[info exists sameas($i)]} {
- set com "same as $sameas($i)"
- }
- if {[info exists synopsis($name)]} {
- set x $synopsis($name)
- if {$com==""} {
- set com "synopsis: $x"
- } else {
- append com ", synopsis: $x"
- }
- }
- if {$com!=""} {
- puts -nonewline [format " /* %-42s */" $com]
- }
- puts ""
-}
-
-# Generate the bitvectors:
-#
-set bv(0) 0
-for {set i 1} {$i<=$max} {incr i} {
- set name $def($i)
- if {[info exists jump($name)] && $jump($name)} {set a0 1} {set a0 0}
- if {[info exists in1($name)] && $in1($name)} {set a1 2} {set a1 0}
- if {[info exists in2($name)] && $in2($name)} {set a2 4} {set a2 0}
- if {[info exists in3($name)] && $in3($name)} {set a3 8} {set a3 0}
- if {[info exists out2($name)] && $out2($name)} {set a4 16} {set a4 0}
- if {[info exists out3($name)] && $out3($name)} {set a5 32} {set a5 0}
- set bv($i) [expr {$a0+$a1+$a2+$a3+$a4+$a5}]
-}
-puts ""
-puts "/* Properties such as \"out2\" or \"jump\" that are specified in"
-puts "** comments following the \"case\" for each opcode in the vdbe.c"
-puts "** are encoded into bitvectors as follows:"
-puts "*/"
-puts "#define OPFLG_JUMP 0x0001 /* jump: P2 holds jmp target */"
-puts "#define OPFLG_IN1 0x0002 /* in1: P1 is an input */"
-puts "#define OPFLG_IN2 0x0004 /* in2: P2 is an input */"
-puts "#define OPFLG_IN3 0x0008 /* in3: P3 is an input */"
-puts "#define OPFLG_OUT2 0x0010 /* out2: P2 is an output */"
-puts "#define OPFLG_OUT3 0x0020 /* out3: P3 is an output */"
-puts "#define OPFLG_INITIALIZER \173\\"
-for {set i 0} {$i<=$max} {incr i} {
- if {$i%8==0} {
- puts -nonewline [format "/* %3d */" $i]
- }
- puts -nonewline [format " 0x%02x," $bv($i)]
- if {$i%8==7} {
- puts "\\"
- }
-}
-puts "\175"
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