Stream control-flow tags and optimize render context

[cappuc]

Summary

• Stream for, if, unless, and case tag bodies incrementally.
• Preserve loop break/continue behavior and normalize iterable handling.
• Reuse shared render context state and optimize common array assignments.
• Update the streaming benchmark drain logic.

Testing

• Added integration coverage for streamed control-flow tags and loop interruptions.
• Not run.

[github-actions]

PHPBench comparison (PHP 8.4)

PHP 8.4 | Runner ubuntu24 | Base 3200449 | PR 3c04b6f | 10 iterations x 20 revs | 1 warmup

Positive ops/s is faster. RSD above 5% is marked high.

Benchmark	Base ops/s	PR ops/s	Delta ops/s	RSD (base / PR)	Delta memory	Memory %
ThemeBench::benchParse	342.55 ops/s	342.21 ops/s	-0.10%	3.05% / 2.54%	-306.50 KiB	-3.43%
ThemeBench::benchRender	233.17 ops/s	281.07 ops/s	+20.54%	1.24% / 2.30%	+106.16 KiB	+1.19%
ThemeBench::benchStream	234.15 ops/s	231.85 ops/s	-0.98%	2.22% / 2.23%	+302.81 KiB	+3.85%
ThemeBench::benchTokenize	1,090.73 ops/s	1,116.78 ops/s	+2.39%	1.62% / 2.94%	-176.00 B	-0.00%

• Improved (> +2%): 2 (median +11.46%)

• Neutral (within ±2%): 2

• Regressed (< -2%): 0

• Worst throughput regression: n/a

• Total memory change: +0.31%

• Regression threshold (PHPBENCH_MAX_REG): 5.00%

• Threshold status: PASSED

[github-actions]

PHPBench comparison (PHP 8.3)

PHP 8.3 | Runner ubuntu24 | Base 3200449 | PR 3c04b6f | 10 iterations x 20 revs | 1 warmup

Positive ops/s is faster. RSD above 5% is marked high.

Benchmark	Base ops/s	PR ops/s	Delta ops/s	RSD (base / PR)	Delta memory	Memory %
ThemeBench::benchParse	549.51 ops/s	556.01 ops/s	+1.18%	0.84% / 1.74%	-176.00 B	-0.00%
ThemeBench::benchRender	332.86 ops/s	411.46 ops/s	+23.62%	1.92% / 1.58%	-1.73 KiB	-0.02%
ThemeBench::benchStream	331.50 ops/s	339.73 ops/s	+2.48%	1.51% / 1.42%	+124.18 KiB	+1.56%
ThemeBench::benchTokenize	1,233.84 ops/s	1,255.04 ops/s	+1.72%	0.71% / 1.36%	-176.00 B	-0.00%

• Improved (> +2%): 2 (median +13.05%)

• Neutral (within ±2%): 2

• Regressed (< -2%): 0

• Worst throughput regression: n/a

• Total memory change: +0.37%

• Regression threshold (PHPBENCH_MAX_REG): 5.00%

• Threshold status: PASSED

[github-actions]

PHPBench comparison (PHP 8.2)

PHP 8.2 | Runner ubuntu24 | Base 3200449 | PR 3c04b6f | 10 iterations x 20 revs | 1 warmup

Positive ops/s is faster. RSD above 5% is marked high.

Benchmark	Base ops/s	PR ops/s	Delta ops/s	RSD (base / PR)	Delta memory	Memory %
ThemeBench::benchParse	525.44 ops/s	524.15 ops/s	-0.24%	1.22% / 0.77%	-176.00 B	-0.00%
ThemeBench::benchRender	310.02 ops/s	399.61 ops/s	+28.90%	1.76% / 1.57%	-1.73 KiB	-0.02%
ThemeBench::benchStream	308.40 ops/s	329.40 ops/s	+6.81%	1.87% / 1.24%	+124.31 KiB	+1.58%
ThemeBench::benchTokenize	1,101.56 ops/s	1,100.97 ops/s	-0.05%	1.26% / 1.12%	-176.00 B	-0.00%

• Improved (> +2%): 2 (median +17.85%)

• Neutral (within ±2%): 2

• Regressed (< -2%): 0

• Worst throughput regression: n/a

• Total memory change: +0.38%

• Regression threshold (PHPBENCH_MAX_REG): 5.00%

• Threshold status: PASSED

[github-actions]

PHPBench comparison (PHP 8.5)

PHP 8.5 | Runner ubuntu24 | Base 3200449 | PR 3c04b6f | 10 iterations x 20 revs | 1 warmup

Positive ops/s is faster. RSD above 5% is marked high.

Benchmark	Base ops/s	PR ops/s	Delta ops/s	RSD (base / PR)	Delta memory	Memory %
ThemeBench::benchParse	299.95 ops/s	306.22 ops/s	+2.09%	2.22% / 2.24%	+306.16 KiB	+3.50%
ThemeBench::benchRender	193.95 ops/s	234.02 ops/s	+20.66%	2.12% / 2.38%	+68.39 KiB	+0.77%
ThemeBench::benchStream	196.89 ops/s	201.66 ops/s	+2.42%	1.39% / 1.47%	+23.97 KiB	+0.30%
ThemeBench::benchTokenize	877.76 ops/s	879.49 ops/s	+0.20%	2.46% / 2.05%	-176.00 B	-0.00%

• Improved (> +2%): 3 (median +2.42%)

• Neutral (within ±2%): 1

• Regressed (< -2%): 0

• Worst throughput regression: n/a

• Total memory change: +1.20%

• Regression threshold (PHPBENCH_MAX_REG): 5.00%

• Threshold status: PASSED