82 lines
4.8 KiB
Nim
82 lines
4.8 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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import std/strformat
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import std/os
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# These variables can be tweaked to debug and test various components of the toolchain
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var debugLexer* = false # Print the tokenizer's output
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var debugParser* = false # Print the AST generated by the parser
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var debugCompiler* = false # Disassemble and/or print the code generated by the compiler
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const debugVM* {.booldefine.} = false # Enable the runtime debugger in the bytecode VM
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const debugGC* {.booldefine.} = false # Debug the Garbage Collector (extremely verbose)
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const debugAlloc* {.booldefine.} = false # Trace object allocation (extremely verbose)
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const debugMem* {.booldefine.} = false # Debug the memory allocator (extremely verbose)
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var debugSerializer* = false # Validate the bytecode serializer's output
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const debugStressGC* {.booldefine.} = false # Make the GC run a collection at every allocation (VERY SLOW!)
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const debugMarkGC* {.booldefine.} = false # Trace the marking phase object by object (extremely verbose)
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const PeonBytecodeMarker* = "PEON_BYTECODE" # Magic value at the beginning of bytecode files
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const HeapGrowFactor* = 2 # The growth factor used by the GC to schedule the next collection
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const FirstGC* = 1024 * 1024; # How many bytes to allocate before running the first GC
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const enableVMChecks* {.booldefine.} = true; # Enables all types of compiler (nim-wise) checks in the VM
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# List of paths where peon looks for modules, in order (empty path means current directory, which always takes precedence)
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const moduleLookupPaths*: seq[string] = @["", "src/peon/stdlib", absolutePath(joinPath(".local", "peon", "stdlib"), getenv("HOME"))]
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when HeapGrowFactor <= 1:
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{.fatal: "Heap growth factor must be > 1".}
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const PeonVersion* = (major: 0, minor: 1, patch: 0)
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const PeonRelease* = "alpha"
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const PeonCommitHash* = staticExec("git rev-parse HEAD")
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const PeonBranch* = staticExec("git symbolic-ref HEAD 2>/dev/null | cut -f 3 -d /")
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const PeonVersionString* = &"Peon {PeonVersion.major}.{PeonVersion.minor}.{PeonVersion.patch} {PeonRelease} ({PeonBranch}, {CompileDate}, {CompileTime}, {PeonCommitHash[0..PeonCommitHash.high() mod 8]}) [Nim {NimVersion}] on {hostOS} ({hostCPU})"
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const HelpMessage* = """The peon programming language, Copyright (C) 2023 Mattia Giambirtone & All Contributors
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This program is free software, see the license distributed with this program or check
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http://www.apache.org/licenses/LICENSE-2.0 for more info.
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Basic Usage
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-----------
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$ peon file.pn Run the given Peon source file
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$ peon file.pbc Run the given Peon bytecode file
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Options
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-------
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-h, --help Show this help text and exit
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-v, --version Print the current peon version and exit
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-s, --string Execute the passed string as if it was a file
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-n, --noDump Don't dump the result of compilation to a file.
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Note that no dump is created when using -s/--string
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-b, --breakpoints Run the debugger at specific bytecode offsets (comma-separated).
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Only available with --target:bytecode and when compiled with VM
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debugging on (-d:debugVM at build time)
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-d, --disassemble Disassemble the output of compilation (only makes sense with --target:bytecode)
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-m, --mode Set the compilation mode. Acceptable values are 'debug' and
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'release'. Defaults to 'debug'
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-c, --compile Compile the code, but do not execute it. Useful along with -d
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-w, --warnings Turn warnings on or off (default: on). Acceptable values are
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yes/on and no/off
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--noWarn Disable a specific warning (for example, --noWarn:unusedVariable)
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--showMismatches Show all mismatches when function dispatching fails (output is really verbose)
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--target Select the compilation target (valid values are: 'c' and 'bytecode'). Defaults to
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'bytecode'
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-o, --output Rename the output file with this value (with --target:bytecode, a '.pbc' extension
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is added if not already present)
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--debug-dump Debug the bytecode serializer. Only makes sense with --target:bytecode
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--debug-lexer Show the lexer's output
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--debug-parser Show the parser's output
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"""
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