101 lines
4.3 KiB
Nim
101 lines
4.3 KiB
Nim
# Copyright 2022 Mattia Giambirtone & All Contributors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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## Utilities to print formatted error messages to stderr
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import ../frontend/compiler
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import ../frontend/parser
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import ../frontend/lexer
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import ../util/serializer
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import std/os
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import std/terminal
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import std/strutils
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import std/strformat
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proc print*(exc: CompileError) =
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## Prints a formatted error message
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## for compilation errors to stderr
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var file = exc.file
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if file notin ["<string>", ""]:
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file = relativePath(exc.file, getCurrentDir())
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let line = exc.compiler.getSource().splitLines()[exc.line - 1].strip(chars={'\n'})
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let fn = exc.compiler.getCurrentFunction()
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let node = exc.node
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let pos = node.getRelativeBoundaries()
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stderr.styledWrite(fgRed, styleBright, "Error in ", fgYellow, &"{file}:{exc.line}:{pos.start}")
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if not fn.isNil() and fn.kind == funDecl:
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stderr.styledWrite(fgRed, styleBright, " in function ", fgYellow, FunDecl(fn).name.token.lexeme)
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stderr.styledWriteLine(styleBright, fgDefault, ": ", exc.msg)
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stderr.styledWrite(fgRed, styleBright, "Source line: ", resetStyle, fgDefault, line[0..<pos.start])
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stderr.styledWrite(fgRed, styleUnderscore, line[pos.start..pos.stop])
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stderr.styledWriteLine(fgDefault, line[pos.stop + 1..^1])
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proc print*(exc: ParseError) =
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## Prints a formatted error message
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## for parsing errors to stderr
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var file = exc.file
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if file notin ["<string>", ""]:
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file = relativePath(exc.file, getCurrentDir())
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let line = exc.parser.getSource().splitLines()[exc.line - 1].strip(chars={'\n'})
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let pos = exc.token.relPos
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stderr.styledWriteLine(fgRed, styleBright, "Error in ", fgYellow, &"{file}:{exc.line}:{pos.start}", fgDefault, ": " & exc.msg)
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stderr.styledWrite(fgRed, styleBright, "Source line: ", resetStyle, fgDefault, line[0..<pos.start])
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stderr.styledWrite(fgRed, styleUnderscore, line[pos.start..pos.stop])
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stderr.styledWriteLine(fgDefault, line[pos.stop + 1..^1])
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proc print*(exc: LexingError) =
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## Prints a formatted error message
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## for lexing errors to stderr
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var file = exc.file
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if file notin ["<string>", ""]:
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file = relativePath(exc.file, getCurrentDir())
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let line = exc.lexer.getSource().splitLines()[exc.line - 1].strip(chars={'\n'})
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let pos = exc.pos
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stderr.styledWriteLine(fgRed, styleBright, "Error in ", fgYellow, &"{file}:{exc.line}:{pos.start}", fgDefault, ": " & exc.msg)
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stderr.styledWrite(fgRed, styleBright, "Source line: ", resetStyle, fgDefault, line[0..<pos.start])
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stderr.styledWrite(fgRed, styleUnderscore, line[pos.start..<pos.stop])
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stderr.styledWriteLine(fgDefault, line[pos.stop..^1])
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proc print*(exc: SerializationError) =
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## Prints a formatted error message
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## for serialization errors to stderr
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var file = exc.file
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if file notin ["<string>", ""]:
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file = relativePath(exc.file, getCurrentDir())
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stderr.styledWriteLine(fgRed, styleBright, "Error while (de-)serializing ", fgYellow, file, fgDefault, &": {exc.msg}")
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proc print*(exc: IOError, file: string) =
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## Prints a formatted error message
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## for nim I/O errors to stderr
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var file = file
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if file notin ["<string>", ""]:
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file = relativePath(file, getCurrentDir())
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stderr.styledWriteLine(fgRed, styleBright, "Error while trying to read ", fgYellow, file, fgDefault, &": {exc.msg}")
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proc print*(exc: OSError, file: string, errno: OSErrorCode) =
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## Prints a formatted error message
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## for nim OS errors to stderr
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var file = file
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if file notin ["<string>", ""]:
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file = relativePath(file, getCurrentDir())
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stderr.styledWriteLine(fgRed, styleBright, "Error while trying to read ", fgYellow, file, fgDefault, &": {exc.msg} ({osErrorMsg(errno)})",
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fgRed, "[errno ", fgYellow, $errno, fgRed, "]")
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