mirror of https://github.com/japl-lang/japl.git
Add more compiler debug; fix endScope()
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@ -16,6 +16,7 @@
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import strutils
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import sequtils
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import algorithm
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import strformat
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import lexer
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@ -26,6 +27,7 @@ import types/jobject
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import types/jstring
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import types/function
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import tables
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import config
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when isMainModule:
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import util/debug
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@ -150,6 +152,8 @@ proc compileError(self: ref Compiler, message: string) =
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proc emitByte(self: ref Compiler, byt: OpCode|uint8) =
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## Emits a single bytecode instruction and writes it
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## to the current chunk being compiled
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when DEBUG_TRACE_COMPILER:
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echo "Compiler.emitByte byt:" & $byt & " (uint8 value of " & $(uint8 byt) & ")"
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self.currentChunk.writeChunk(uint8 byt, self.parser.previous.line)
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@ -668,10 +672,15 @@ proc endScope(self: ref Compiler) =
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## Ends a scope, popping off any local that
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## was created inside it along the way
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self.scopeDepth = self.scopeDepth - 1
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var start: Natural = self.localCount
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while self.localCount > 0 and self.locals[self.localCount - 1].depth > self.scopeDepth:
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self.emitByte(OpCode.Pop)
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self.localCount = self.localCount - 1
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if start >= self.localCount:
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self.locals.delete(self.localCount, start)
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proc emitJump(self: ref Compiler, opcode: OpCode): int =
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## Emits a jump instruction with a placeholder offset
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