diff options
Diffstat (limited to 'compiler/sem.nim')
| -rw-r--r-- | compiler/sem.nim | 83 |
1 files changed, 16 insertions, 67 deletions
diff --git a/compiler/sem.nim b/compiler/sem.nim index 92c21aece..2cf93d365 100644 --- a/compiler/sem.nim +++ b/compiler/sem.nim @@ -21,7 +21,7 @@ import extccomp import vtables -import std/[strtabs, math, tables, intsets, strutils] +import std/[strtabs, math, tables, intsets, strutils, packedsets] when not defined(leanCompiler): import spawn @@ -103,7 +103,7 @@ proc fitNode(c: PContext, formal: PType, arg: PNode; info: TLineInfo): PNode = result = nil for ch in arg: if sameType(ch.typ, formal): - return getConstExpr(c.module, ch, c.idgen, c.graph) + return ch typeMismatch(c.config, info, formal, arg.typ, arg) else: result = indexTypesMatch(c, formal, arg.typ, arg) @@ -222,66 +222,7 @@ proc shouldCheckCaseCovered(caseTyp: PType): bool = else: discard -proc endsInNoReturn(n: PNode): bool = - ## check if expr ends the block like raising or call of noreturn procs do - result = false # assume it does return - - template checkBranch(branch) = - if not endsInNoReturn(branch): - # proved a branch returns - return false - - var it = n - # skip these beforehand, no special handling needed - while it.kind in {nkStmtList, nkStmtListExpr} and it.len > 0: - it = it.lastSon - - case it.kind - of nkIfStmt: - var hasElse = false - for branch in it: - checkBranch: - if branch.len == 2: - branch[1] - elif branch.len == 1: - hasElse = true - branch[0] - else: - raiseAssert "Malformed `if` statement during endsInNoReturn" - # none of the branches returned - result = hasElse # Only truly a no-return when it's exhaustive - of nkCaseStmt: - let caseTyp = skipTypes(it[0].typ, abstractVar-{tyTypeDesc}) - # semCase should already have checked for exhaustiveness in this case - # effectively the same as having an else - var hasElse = caseTyp.shouldCheckCaseCovered() - - # actual noreturn checks - for i in 1 ..< it.len: - let branch = it[i] - checkBranch: - case branch.kind - of nkOfBranch: - branch[^1] - of nkElifBranch: - branch[1] - of nkElse: - hasElse = true - branch[0] - else: - raiseAssert "Malformed `case` statement in endsInNoReturn" - # Can only guarantee a noreturn if there is an else or it's exhaustive - result = hasElse - of nkTryStmt: - checkBranch(it[0]) - for i in 1 ..< it.len: - let branch = it[i] - checkBranch(branch[^1]) - # none of the branches returned - result = true - else: - result = it.kind in nkLastBlockStmts or - it.kind in nkCallKinds and it[0].kind == nkSym and sfNoReturn in it[0].sym.flags +proc endsInNoReturn(n: PNode): bool proc commonType*(c: PContext; x: PType, y: PNode): PType = # ignore exception raising branches in case/if expressions @@ -313,6 +254,8 @@ proc newSymG*(kind: TSymKind, n: PNode, c: PContext): PSym = result.owner = getCurrOwner(c) else: result = newSym(kind, considerQuotedIdent(c, n), c.idgen, getCurrOwner(c), n.info) + if find(result.name.s, '`') >= 0: + result.flags.incl sfWasGenSym #if kind in {skForVar, skLet, skVar} and result.owner.kind == skModule: # incl(result.flags, sfGlobal) when defined(nimsuggest): @@ -322,7 +265,7 @@ proc semIdentVis(c: PContext, kind: TSymKind, n: PNode, allowed: TSymFlags): PSym # identifier with visibility proc semIdentWithPragma(c: PContext, kind: TSymKind, n: PNode, - allowed: TSymFlags): PSym + allowed: TSymFlags, fromTopLevel = false): PSym proc typeAllowedCheck(c: PContext; info: TLineInfo; typ: PType; kind: TSymKind; flags: TTypeAllowedFlags = {}) = @@ -554,7 +497,6 @@ proc semAfterMacroCall(c: PContext, call, macroResult: PNode, const errMissingGenericParamsForTemplate = "'$1' has unspecified generic parameters" - errFloatToString = "cannot convert '$1' to '$2'" proc semMacroExpr(c: PContext, n, nOrig: PNode, sym: PSym, flags: TExprFlags = {}; expectedType: PType = nil): PNode = @@ -708,7 +650,8 @@ proc defaultFieldsForTheUninitialized(c: PContext, recNode: PNode, checkDefault: proc defaultNodeField(c: PContext, a: PNode, aTyp: PType, checkDefault: bool): PNode = let aTypSkip = aTyp.skipTypes(defaultFieldsSkipTypes) - if aTypSkip.kind == tyObject: + case aTypSkip.kind + of tyObject: let child = defaultFieldsForTheUninitialized(c, aTypSkip.n, checkDefault) if child.len > 0: var asgnExpr = newTree(nkObjConstr, newNodeIT(nkType, a.info, aTyp)) @@ -717,7 +660,7 @@ proc defaultNodeField(c: PContext, a: PNode, aTyp: PType, checkDefault: bool): P result = semExpr(c, asgnExpr) else: result = nil - elif aTypSkip.kind == tyArray: + of tyArray: let child = defaultNodeField(c, a, aTypSkip[1], checkDefault) if child != nil: @@ -730,7 +673,7 @@ proc defaultNodeField(c: PContext, a: PNode, aTyp: PType, checkDefault: bool): P result.typ = aTyp else: result = nil - elif aTypSkip.kind == tyTuple: + of tyTuple: var hasDefault = false if aTypSkip.n != nil: let children = defaultFieldsForTuple(c, aTypSkip.n, hasDefault, checkDefault) @@ -743,6 +686,11 @@ proc defaultNodeField(c: PContext, a: PNode, aTyp: PType, checkDefault: bool): P result = nil else: result = nil + of tyRange: + if c.graph.config.isDefined("nimPreviewRangeDefault"): + result = firstRange(c.config, aTypSkip) + else: + result = nil else: result = nil @@ -779,6 +727,7 @@ proc preparePContext*(graph: ModuleGraph; module: PSym; idgen: IdGenerator): PCo result.semOverloadedCall = semOverloadedCall result.semInferredLambda = semInferredLambda result.semGenerateInstance = generateInstance + result.instantiateOnlyProcType = instantiateOnlyProcType result.semTypeNode = semTypeNode result.instTypeBoundOp = sigmatch.instTypeBoundOp result.hasUnresolvedArgs = hasUnresolvedArgs |