Added syntax highlighting for numbers, identifiers and template literals

[Razican]

This Pull Request adds syntax highlighting in our REPL (boa CLI console) for numbers (also binary and hexadecimal), for identifiers, and for template literals.

It should make it easier to see different parts of the code. Here you have a small sneak-peek on how it looks in a dark-themed shell:

Note that the template literals fail until we merge #997.

[github-actions]

Test262 conformance changes:

Test result	master count	PR count	difference
Total	78,493	78,493	0
Passed	24,444	24,444	0
Ignored	15,585	15,585	0
Failed	38,464	38,464	0
Panics	90	90	0
Conformance	31.14	31.14	0.00%

[codecov]

Codecov Report

Merging #1047 (a9dc69d) into master (1a7e832) will decrease coverage by 0.29%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1047      +/-   ##
==========================================
- Coverage   58.56%   58.26%   -0.30%     
==========================================
  Files         172      172              
  Lines       11920    11981      +61     
==========================================
  Hits         6981     6981              
- Misses       4939     5000      +61     

Impacted Files	Coverage Δ
boa_cli/src/helper.rs	0.00% <ø> (ø)
boa/src/vm/mod.rs	0.00% <0.00%> (ø)
boa/src/vm/compilation.rs	0.00% <0.00%> (ø)
boa/src/vm/instructions.rs	0.00% <0.00%> (ø)

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[github-actions]

Benchmark for ccb3242

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	301.9±0.17ns	301.6±0.24ns	+0.10%
Arithmetic operations (Full)	197.8±0.39µs	197.3±0.45µs	+0.25%
Array access (Execution)	5.2±0.01µs	5.3±0.02µs	-1.89%
Array access (Full)	217.6±0.28µs	216.9±0.25µs	+0.32%
Array creation (Execution)	2.6±0.01ms	2.6±0.00ms	0.00%
Array creation (Full)	2.8±0.03ms	2.8±0.00ms	0.00%
Array pop (Execution)	820.9±2.48µs	820.5±2.21µs	+0.05%
Array pop (Full)	1206.4±1.28µs	1204.1±1.54µs	+0.19%
Boolean Object Access (Execution)	4.2±0.01µs	4.2±0.00µs	0.00%
Boolean Object Access (Full)	208.3±0.26µs	208.1±2.04µs	+0.10%
Clean js (Execution)	580.0±4.02µs	575.7±3.29µs	+0.75%
Clean js (Full)	828.0±4.63µs	822.7±4.49µs	+0.64%
Clean js (Parser)	30.4±0.09µs	30.3±0.02µs	+0.33%
Create Realm	407.7±0.23ns	416.2±0.39ns	-2.04%
Dynamic Object Property Access (Execution)	4.3±0.01µs	4.3±0.01µs	0.00%
Dynamic Object Property Access (Full)	211.3±0.26µs	213.1±0.31µs	-0.84%
Expression (Parser)	5.7±0.00µs	5.7±0.01µs	0.00%
Fibonacci (Execution)	731.1±0.69µs	717.8±1.15µs	+1.85%
Fibonacci (Full)	958.7±5.99µs	953.4±1.56µs	+0.56%
For loop (Execution)	19.5±0.05µs	19.5±0.04µs	0.00%
For loop (Full)	234.4±0.56µs	233.9±0.19µs	+0.21%
For loop (Parser)	15.0±0.02µs	15.2±0.02µs	-1.32%
Goal Symbols (Parser)	10.1±0.02µs	10.1±0.03µs	0.00%
Hello World (Parser)	2.7±0.00µs	2.7±0.06µs	0.00%
Long file (Parser)	690.7±0.94ns	696.3±0.63ns	-0.80%
Mini js (Execution)	517.9±2.49µs	517.4±8.46µs	+0.10%
Mini js (Full)	748.5±2.47µs	746.4±3.50µs	+0.28%
Mini js (Parser)	26.9±0.02µs	26.8±0.05µs	+0.37%
Number Object Access (Execution)	3.3±0.01µs	3.3±0.01µs	0.00%
Number Object Access (Full)	208.2±0.90µs	205.6±0.27µs	+1.26%
Object Creation (Execution)	3.7±0.01µs	3.7±0.01µs	0.00%
Object Creation (Full)	208.2±0.50µs	208.0±0.33µs	+0.10%
RegExp (Execution)	8.0±0.03µs	8.1±0.03µs	-1.23%
RegExp (Full)	219.3±0.36µs	219.0±1.01µs	+0.14%
RegExp Literal (Execution)	9.3±0.03µs	9.3±0.03µs	0.00%
RegExp Literal (Full)	216.2±0.27µs	218.3±0.43µs	-0.96%
RegExp Literal Creation (Execution)	8.0±0.03µs	8.2±0.04µs	-2.44%
RegExp Literal Creation (Full)	212.0±0.29µs	211.9±0.32µs	+0.05%
Static Object Property Access (Execution)	3.9±0.03µs	3.9±0.01µs	0.00%
Static Object Property Access (Full)	211.1±5.28µs	210.8±2.26µs	+0.14%
String Object Access (Execution)	5.8±0.01µs	5.8±0.01µs	0.00%
String Object Access (Full)	212.5±0.19µs	212.3±0.46µs	+0.09%
String comparison (Execution)	5.5±0.02µs	5.6±0.02µs	-1.79%
String comparison (Full)	215.5±2.54µs	214.3±0.24µs	+0.56%
String concatenation (Execution)	4.4±0.01µs	4.4±0.01µs	0.00%
String concatenation (Full)	209.7±2.48µs	207.0±0.26µs	+1.30%
String copy (Execution)	3.3±0.01µs	3.3±0.01µs	0.00%
String copy (Full)	203.0±0.23µs	204.8±0.29µs	-0.88%
Symbols (Execution)	2.8±0.00µs	2.9±0.04µs	-3.45%
Symbols (Full)	199.2±0.43µs	201.3±0.46µs	-1.04%

[github-actions]

Benchmark for 68d5c98

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	352.9±15.50ns	340.1±28.44ns	+3.76%
Arithmetic operations (Full)	240.8±12.24µs	239.6±23.39µs	+0.50%
Array access (Execution)	6.6±0.41µs	6.4±0.33µs	+3.12%
Array access (Full)	266.6±10.87µs	263.7±9.96µs	+1.10%
Array creation (Execution)	2.9±0.13ms	2.7±0.10ms	+7.41%
Array creation (Full)	3.0±0.15ms	3.0±0.15ms	0.00%
Array pop (Execution)	925.9±41.16µs	897.8±45.17µs	+3.13%
Array pop (Full)	1302.3±51.27µs	1276.9±45.98µs	+1.99%
Boolean Object Access (Execution)	5.2±0.24µs	4.9±0.29µs	+6.12%
Boolean Object Access (Full)	251.8±15.27µs	246.6±17.17µs	+2.11%
Clean js (Execution)	712.8±32.11µs	650.0±30.10µs	+9.66%
Clean js (Full)	946.3±51.60µs	931.0±39.16µs	+1.64%
Clean js (Parser)	33.8±2.32µs	33.6±1.58µs	+0.60%
Create Realm	497.4±16.75ns	465.7±23.75ns	+6.81%
Dynamic Object Property Access (Execution)	5.5±0.26µs	5.2±0.42µs	+5.77%
Dynamic Object Property Access (Full)	265.2±14.99µs	253.6±12.85µs	+4.57%
Expression (Parser)	6.3±0.26µs	6.4±0.40µs	-1.56%
Fibonacci (Execution)	929.3±33.12µs	865.1±27.78µs	+7.42%
Fibonacci (Full)	1147.4±51.14µs	1136.1±44.74µs	+0.99%
For loop (Execution)	23.6±1.33µs	22.6±1.16µs	+4.42%
For loop (Full)	290.1±16.60µs	279.8±13.07µs	+3.68%
For loop (Parser)	16.7±0.87µs	16.5±0.74µs	+1.21%
Goal Symbols (Parser)	11.2±0.59µs	11.2±0.58µs	0.00%
Hello World (Parser)	2.9±0.12µs	3.0±0.13µs	-3.33%
Long file (Parser)	742.4±32.40ns	752.9±112.14ns	-1.39%
Mini js (Execution)	633.8±26.11µs	579.3±25.50µs	+9.41%
Mini js (Full)	847.2±40.69µs	830.0±32.15µs	+2.07%
Mini js (Parser)	29.8±2.07µs	29.8±1.36µs	0.00%
Number Object Access (Execution)	4.0±0.17µs	3.7±0.16µs	+8.11%
Number Object Access (Full)	263.8±17.74µs	242.1±9.78µs	+8.96%
Object Creation (Execution)	4.7±0.27µs	4.6±0.28µs	+2.17%
Object Creation (Full)	258.9±12.69µs	250.9±10.44µs	+3.19%
RegExp (Execution)	9.5±0.43µs	9.2±0.52µs	+3.26%
RegExp (Full)	281.0±15.16µs	261.7±13.90µs	+7.37%
RegExp Literal (Execution)	11.1±0.63µs	11.6±0.69µs	-4.31%
RegExp Literal (Full)	276.6±21.90µs	261.6±16.42µs	+5.73%
RegExp Literal Creation (Execution)	9.7±0.52µs	9.2±0.45µs	+5.43%
RegExp Literal Creation (Full)	255.6±11.44µs	260.6±10.82µs	-1.92%
Static Object Property Access (Execution)	5.2±0.24µs	4.8±0.76µs	+8.33%
Static Object Property Access (Full)	255.6±12.92µs	248.1±11.95µs	+3.02%
String Object Access (Execution)	7.2±0.39µs	6.9±0.33µs	+4.35%
String Object Access (Full)	252.6±11.59µs	249.9±8.85µs	+1.08%
String comparison (Execution)	6.9±0.51µs	6.6±0.37µs	+4.55%
String comparison (Full)	265.7±10.74µs	267.7±51.63µs	-0.75%
String concatenation (Execution)	5.4±0.28µs	5.4±0.22µs	0.00%
String concatenation (Full)	268.6±12.94µs	253.4±25.02µs	+6.00%
String copy (Execution)	4.3±0.26µs	4.1±0.26µs	+4.88%
String copy (Full)	257.9±13.69µs	244.3±9.41µs	+5.57%
Symbols (Execution)	3.8±0.16µs	3.7±0.19µs	+2.70%
Symbols (Full)	260.8±15.39µs	234.2±10.71µs	+11.36%

[github-actions]

Benchmark for 5c44a44

Click to view benchmark

Test	PR Benchmark	Master Benchmark	%
Arithmetic operations (Execution)	365.2±2.80ns	365.9±0.87ns	-0.19%
Arithmetic operations (Full)	241.8±18.10µs	240.7±4.47µs	+0.46%
Array access (Execution)	6.3±0.02µs	6.7±0.57µs	-5.97%
Array access (Full)	257.0±1.00µs	259.2±2.44µs	-0.85%
Array creation (Execution)	3.1±0.03ms	3.1±0.01ms	0.00%
Array creation (Full)	3.3±0.01ms	3.4±0.02ms	-2.94%
Array pop (Execution)	983.7±10.66µs	987.6±6.36µs	-0.39%
Array pop (Full)	1479.1±90.68µs	1441.9±15.27µs	+2.58%
Boolean Object Access (Execution)	5.0±0.02µs	5.0±0.02µs	0.00%
Boolean Object Access (Full)	249.7±1.59µs	253.5±2.50µs	-1.50%
Clean js (Execution)	695.7±8.55µs	694.9±4.29µs	+0.12%
Clean js (Full)	987.0±6.36µs	992.6±12.96µs	-0.56%
Clean js (Parser)	34.6±0.12µs	34.7±0.55µs	-0.29%
Create Realm	506.2±2.72ns	497.7±3.45ns	+1.71%
Dynamic Object Property Access (Execution)	5.1±0.02µs	5.2±0.18µs	-1.92%
Dynamic Object Property Access (Full)	252.6±0.71µs	257.4±1.64µs	-1.86%
Expression (Parser)	6.5±0.30µs	6.8±0.03µs	-4.41%
Fibonacci (Execution)	859.6±3.70µs	857.5±6.37µs	+0.24%
Fibonacci (Full)	1130.9±13.33µs	1139.7±3.27µs	-0.77%
For loop (Execution)	23.5±0.19µs	23.2±0.21µs	+1.29%
For loop (Full)	279.9±1.72µs	278.1±0.99µs	+0.65%
For loop (Parser)	17.4±0.05µs	17.3±0.05µs	+0.58%
Goal Symbols (Parser)	11.7±0.03µs	11.8±0.07µs	-0.85%
Hello World (Parser)	3.0±0.08µs	3.1±0.01µs	-3.23%
Long file (Parser)	804.7±5.60ns	801.1±4.60ns	+0.45%
Mini js (Execution)	621.1±5.22µs	620.6±3.94µs	+0.08%
Mini js (Full)	897.3±8.11µs	892.4±5.62µs	+0.55%
Mini js (Parser)	30.4±0.14µs	30.6±0.17µs	-0.65%
Number Object Access (Execution)	4.0±0.01µs	4.2±1.15µs	-4.76%
Number Object Access (Full)	249.0±1.26µs	247.5±1.89µs	+0.61%
Object Creation (Execution)	4.4±0.03µs	4.4±0.04µs	0.00%
Object Creation (Full)	248.3±1.21µs	249.8±1.15µs	-0.60%
RegExp (Execution)	9.6±0.03µs	9.7±0.07µs	-1.03%
RegExp (Full)	264.1±4.27µs	263.3±1.45µs	+0.30%
RegExp Literal (Execution)	11.1±0.05µs	11.2±0.27µs	-0.89%
RegExp Literal (Full)	260.5±2.41µs	261.7±1.07µs	-0.46%
RegExp Literal Creation (Execution)	9.6±0.05µs	9.7±0.04µs	-1.03%
RegExp Literal Creation (Full)	253.8±1.72µs	254.0±1.30µs	-0.08%
Static Object Property Access (Execution)	4.7±0.02µs	4.7±0.03µs	0.00%
Static Object Property Access (Full)	252.6±0.72µs	251.3±0.92µs	+0.52%
String Object Access (Execution)	7.1±0.26µs	6.9±0.03µs	+2.90%
String Object Access (Full)	255.7±0.72µs	255.0±1.26µs	+0.27%
String comparison (Execution)	6.7±0.04µs	6.5±0.09µs	+3.08%
String comparison (Full)	258.0±1.15µs	254.0±1.61µs	+1.57%
String concatenation (Execution)	5.3±0.15µs	5.3±0.08µs	0.00%
String concatenation (Full)	251.3±1.71µs	248.5±1.38µs	+1.13%
String copy (Execution)	4.0±0.02µs	4.0±0.04µs	0.00%
String copy (Full)	248.2±8.55µs	242.8±1.29µs	+2.22%
Symbols (Execution)	3.4±0.06µs	3.4±0.02µs	0.00%
Symbols (Full)	239.1±1.70µs	239.7±1.19µs	-0.25%