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James Westman 2022-12-19 11:49:10 -06:00
parent 6a36d92380
commit 8fee46ec68
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40 changed files with 975 additions and 610 deletions
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51
blueprintcompiler/errors.py
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@ -23,9 +23,10 @@ import sys, traceback
from . import utils
from .utils import Colors
class PrintableError(Exception):
""" Parent class for errors that can be pretty-printed for the user, e.g.
compilation warnings and errors. """
"""Parent class for errors that can be pretty-printed for the user, e.g.
compilation warnings and errors."""
def pretty_print(self, filename, code):
raise NotImplementedError()
@ -39,12 +40,22 @@ class ErrorReference:
class CompileError(PrintableError):
""" A PrintableError with a start/end position and optional hints """
"""A PrintableError with a start/end position and optional hints"""
category = "error"
color = Colors.RED
def __init__(self, message, start=None, end=None, did_you_mean=None, hints=None, actions=None, fatal=False, references=None):
def __init__(
self,
message,
start=None,
end=None,
did_you_mean=None,
hints=None,
actions=None,
fatal=False,
references=None,
):
super().__init__(message)
self.message = message
@ -62,7 +73,6 @@ class CompileError(PrintableError):
self.hints.append(hint)
return self
def _did_you_mean(self, word: str, options: T.List[str]):
if word.replace("_", "-") in options:
self.hint(f"use '-', not '_': `{word.replace('_', '-')}`")
@ -86,9 +96,11 @@ class CompileError(PrintableError):
# Display 1-based line numbers
line_num += 1
stream.write(f"""{self.color}{Colors.BOLD}{self.category}: {self.message}{Colors.CLEAR}
stream.write(
f"""{self.color}{Colors.BOLD}{self.category}: {self.message}{Colors.CLEAR}
at {filename} line {line_num} column {col_num}:
{Colors.FAINT}{line_num :>4} |{Colors.CLEAR}{line.rstrip()}\n {Colors.FAINT}|{" "*(col_num-1)}^{Colors.CLEAR}\n""")
{Colors.FAINT}{line_num :>4} |{Colors.CLEAR}{line.rstrip()}\n {Colors.FAINT}|{" "*(col_num-1)}^{Colors.CLEAR}\n"""
)
for hint in self.hints:
stream.write(f"{Colors.FAINT}hint: {hint}{Colors.CLEAR}\n")
@ -98,9 +110,11 @@ at {filename} line {line_num} column {col_num}:
line = code.splitlines(True)[line_num]
line_num += 1
stream.write(f"""{Colors.FAINT}note: {ref.message}:
stream.write(
f"""{Colors.FAINT}note: {ref.message}:
at {filename} line {line_num} column {col_num}:
{Colors.FAINT}{line_num :>4} |{line.rstrip()}\n {Colors.FAINT}|{" "*(col_num-1)}^{Colors.CLEAR}\n""")
{Colors.FAINT}{line_num :>4} |{line.rstrip()}\n {Colors.FAINT}|{" "*(col_num-1)}^{Colors.CLEAR}\n"""
)
stream.write("\n")
@ -122,9 +136,9 @@ class CodeAction:
class MultipleErrors(PrintableError):
""" If multiple errors occur during compilation, they can be collected into
"""If multiple errors occur during compilation, they can be collected into
a list and re-thrown using the MultipleErrors exception. It will
pretty-print all of the errors and a count of how many errors there are. """
pretty-print all of the errors and a count of how many errors there are."""
def __init__(self, errors: T.List[CompileError]):
super().__init__()
@ -138,24 +152,25 @@ class MultipleErrors(PrintableError):
class CompilerBugError(Exception):
""" Emitted on assertion errors """
"""Emitted on assertion errors"""
def assert_true(truth: bool, message: T.Optional[str]=None):
def assert_true(truth: bool, message: T.Optional[str] = None):
if not truth:
raise CompilerBugError(message)
def report_bug(): # pragma: no cover
""" Report an error and ask people to report it. """
def report_bug(): # pragma: no cover
"""Report an error and ask people to report it."""
print(traceback.format_exc())
print(f"Arguments: {sys.argv}\n")
print(f"""{Colors.BOLD}{Colors.RED}***** COMPILER BUG *****
print(
f"""{Colors.BOLD}{Colors.RED}***** COMPILER BUG *****
The blueprint-compiler program has crashed. Please report the above stacktrace,
along with the input file(s) if possible, on GitLab:
{Colors.BOLD}{Colors.BLUE}{Colors.UNDERLINE}https://gitlab.gnome.org/jwestman/blueprint-compiler/-/issues/new?issue
{Colors.CLEAR}""")
{Colors.CLEAR}"""
)
sys.exit(1)