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Create function variables using the data produced by the pre-scanner. (#3199)

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The pre-scanner now is able to track all variable declarations and produces a compressed
stream which store this data for each function and catch block. When a function or
catch block is parsed, this information is decoded and the appropriate variables are
created. Furthermore a stack scope is created which contains the currently available
local variables and their register or literal index.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-10-17 15:20:04 +02:00
committed by GitHub
parent fd1f7eab9f
commit 7df87b7778
20 changed files with 2098 additions and 1219 deletions
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tests/debugger/do_variables.expected
+1 -1
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@@ -34,8 +34,8 @@ level | type
2 | global
(jerry-debugger) variables 0
name | type | value
n | Number | 9
b | undefined | undefined
n | Number | 9
(jerry-debugger) variables 1
name | type | value
x | Number | 3
tests/jerry/regression-test-issue-1555.js
+1 -1
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@@ -14,7 +14,7 @@
var src = "var a = 0; while(a) { switch(a) {";
/* The += operation has a longer opcode. */
for (var i = 0; i < 3500; i++)
for (var i = 0; i < 3300; i++)
src += "case " + i + ": a += a += a; break; ";
src += "} }";
tests/unit-core/test-snapshot.c
+4 -4
View File
@@ -223,15 +223,15 @@ main (void)
/* Check the snapshot data. Unused bytes should be filled with zeroes */
const uint8_t expected_data[] =
{
0x4A, 0x52, 0x52, 0x59, 0x18, 0x00, 0x00, 0x00,
0x4A, 0x52, 0x52, 0x59, 0x19, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00,
0x03, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00,
0x03, 0x00, 0x01, 0x00, 0x21, 0x00, 0x01, 0x00,
0x00, 0x00, 0x00, 0x01, 0x18, 0x00, 0x00, 0x00,
0x28, 0x00, 0xB8, 0x46, 0x00, 0x00, 0x00, 0x00,
0x28, 0x00, 0xB7, 0x45, 0x00, 0x00, 0x00, 0x00,
0x03, 0x00, 0x01, 0x00, 0x21, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x01, 0x07, 0x00, 0x00, 0x00,
0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x46, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x14, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67,
0x20, 0x66, 0x72, 0x6F, 0x6D, 0x20, 0x73, 0x6E,
0x61, 0x70, 0x73, 0x68, 0x6F, 0x74