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Added indirection to types in prep for function calls, full passthrough, and the first real hello world

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Nathan Braswell
2016-01-10 18:26:31 -05:00
parent 7f20a42178
commit 5db0365a63
7 changed files with 82 additions and 45 deletions
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16
stdlib/parser.krak
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@@ -79,6 +79,7 @@ obj parser (Object) {
}
input.addEnd(current_symbol)
if (current_symbol == invalid_symbol()) {
println("**PARSE ERROR**")
println("lexing failed for ")
println(name)
return null<tree<symbol>>()
@@ -104,11 +105,14 @@ obj parser (Object) {
for (var i = 0; i < input.size; i++;) {
if (gss.frontier_is_empty(i)) {
println("**PARSE ERROR**")
print(i)
print("th frontier is empty in file '")
print(name)
print("' with txt ")
print(input[i].to_string())
print(" line number: ")
print(find_line(i))
println()
return null<tree<symbol>>()
}
@@ -127,9 +131,13 @@ obj parser (Object) {
return gss.get_edge(acc_state, v0)
}
println("**PARSE ERROR**")
println("REJECTED")
println("parsing (not lexing) failed for ")
println(name)
print(" line number: ")
print(find_line(input.size))
println("(minus 2?)")
return null<tree<symbol>>()
}
fun reducer(i: int) {
@@ -363,6 +371,14 @@ obj parser (Object) {
return new<tree<symbol>>()->construct(null_symbol())
return null<tree<symbol>>()
}
fun find_line(token_no: int): int {
var line_no = 1
for (var i = 0; i < token_no; i++;)
for (var j = 0; j < input[i].data.length(); j++;)
if (input[i].data[j] == '\n')
line_no++
return line_no
}
}
obj gss (Object) {