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Slightly speed up execution time of common cases #142

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merged 6 commits into from Nov 15, 2021
Merged

Slightly speed up execution time of common cases #142

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1e905a7
Lazily compile regular expressions to speed up load time
ofek Nov 14, 2021
ac5cd49
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 14, 2021
1e391dd
re-order conditions based on speed of checking and likelihood
ofek Nov 14, 2021
cec94dd
fix
ofek Nov 15, 2021
cb40c82
final update
ofek Nov 15, 2021
9d2f08e
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 15, 2021
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18 changes: 10 additions & 8 deletions tomli/_parser.py
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Expand Up @@ -584,6 +584,8 @@ def parse_value( # noqa: C901
except IndexError:
char = None

# IMPORTANT: order conditions based on speed of checking and likelihood

# Basic strings
if char == '"':
if src.startswith('"""', pos):
Expand All @@ -604,6 +606,14 @@ def parse_value( # noqa: C901
if src.startswith("false", pos):
return pos + 5, False

# Arrays
if char == "[":
return parse_array(src, pos, parse_float)

# Inline tables
if char == "{":
return parse_inline_table(src, pos, parse_float)

# Dates and times
datetime_match = RE_DATETIME.match(src, pos)
if datetime_match:
Expand All @@ -623,14 +633,6 @@ def parse_value( # noqa: C901
if number_match:
return number_match.end(), match_to_number(number_match, parse_float)

# Arrays
if char == "[":
return parse_array(src, pos, parse_float)

# Inline tables
if char == "{":
return parse_inline_table(src, pos, parse_float)

# Special floats
first_three = src[pos : pos + 3]
if first_three in {"inf", "nan"}:
Expand Down