1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
#
#
# The Nimrod Compiler
# (c) Copyright 2012 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
# This include file implements the semantic checking for magics.
proc semIsPartOf(c: PContext, n: PNode, flags: TExprFlags): PNode =
var r = isPartOf(n[1], n[2])
result = newIntNodeT(ord(r), n)
proc semSlurp(c: PContext, n: PNode, flags: TExprFlags): PNode =
assert sonsLen(n) == 2
var a = expectStringArg(c, n, 0)
try:
var filename = a.strVal.FindFile
var content = readFile(filename)
result = newStrNode(nkStrLit, content)
result.typ = getSysType(tyString)
result.info = n.info
c.slurpedFiles.add(filename)
except EIO:
GlobalError(a.info, errCannotOpenFile, a.strVal)
proc expectIntLit(c: PContext, n: PNode): int =
let x = c.semConstExpr(c, n)
case x.kind
of nkIntLit..nkInt64Lit: result = int(x.intVal)
else: GlobalError(n.info, errIntLiteralExpected)
proc semInstantiationInfo(c: PContext, n: PNode): PNode =
result = newNodeIT(nkPar, n.info, n.typ)
let idx = expectIntLit(c, n.sons[1])
let info = getInfoContext(idx)
var filename = newNodeIT(nkStrLit, n.info, getSysType(tyString))
filename.strVal = ToFilename(info)
var line = newNodeIT(nkIntLit, n.info, getSysType(tyInt))
line.intVal = ToLinenumber(info)
result.add(filename)
result.add(line)
proc magicsAfterOverloadResolution(c: PContext, n: PNode,
flags: TExprFlags): PNode =
case n[0].sym.magic
of mSlurp: result = semSlurp(c, n, flags)
of mIsPartOf: result = semIsPartOf(c, n, flags)
of mAstToStr:
result = newStrNodeT(renderTree(n[1], {renderNoComments}), n)
result.typ = getSysType(tyString)
of mInstantiationInfo: result = semInstantiationInfo(c, n)
else: result = n
|