55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
// The compiler
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package main
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import (
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"log"
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"os"
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)
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func main() {
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if len(os.Args) != 2 {
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log.Fatalln("Usage: " + os.Args[0] + " <file>")
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}
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content, err := os.ReadFile(os.Args[1])
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if err != nil {
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log.Fatalln("Cannot open input file.", err)
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}
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tokens, err := lexer(string(content))
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if err != nil {
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if c, ok := err.(CompilerError); ok {
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log.Fatalln(err, "\nv- here\n"+string([]rune(string(content))[c.Position:]))
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}
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log.Fatalln(err)
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}
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log.Printf("Tokens:\n%+#v\n\n", tokens)
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parser := Parser{Tokens: tokens}
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parsed, err := parser.parseFile()
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if err != nil {
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if c, ok := err.(CompilerError); ok {
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log.Fatalln(err, "\nv- here\n"+string([]rune(string(content))[c.Position:]))
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}
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log.Fatalln(err)
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}
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log.Printf("Parsed:\n%+#v\n\n", parsed)
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errors := validator(parsed)
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if len(errors) != 0 {
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for _, err = range errors {
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if c, ok := err.(CompilerError); ok {
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log.Fatalln(err, "\nv- here\n"+string([]rune(string(content))[c.Position:]))
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}
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log.Fatalln(err)
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}
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}
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log.Printf("Validated:\n%+#v\n\n", parsed)
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}
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